DERR-2024-012092

Page 1
ATLAS

November 8, 2024

Mr. Mark Crim
Utah Department of Environmental Quality
Division of Environmental Response and Remediation
195 North 1950 West
Salt Lake City, Utah 84114-4840

SUBJECT: Groundwater Monitoring Report
Former Western Transmission Facility
150 North Carbonville Road
Price, Utah
Facility ID #5000409
UST Release Site HZZ
Work Assignments HZZ-33-A1
UDEQ Technical Contract #216364

Dear Mr. Crim:

Please find attached the Groundwater Monitoring Report for the above referenced site.

INTRODUCTION

On September 16 and 17, 2024, Atlas Technical Consultant (Atlas) conducted a groundwater
monitoring event at the former Western Transmission Facility located at 150 North Carbonville
Road, Price, Utah (see Figure 1, Site Map). The work was performed on behalf of the Utah
Department Environmental Quality, Division of Environmental Response and Remediation
(DERR) under Work Assignment HZZ-33-A1. The approved work plan included gauging of all
the monitoring wells and sampling wells MW -3, MW -6, MW -7, MW -8, MW -13, MW -15, MW -17,
MW -18, and MW -20 through MW-24.

In December 2023, an expanded subsurface investigation was performed at the site, and
monitoring wells MW -20 through MW -24 were installed. Please refer to the Expanded
Subsurface Investigation Report dated February 15, 2024.

GROUNDWATER MONITORING FIELD PROCEDURES

The field and laboratory procedures utilized to collect the information presented in this report are
discussed in the following sections.

Field Parameters, Well Purging Procedures, and Chemical Analysis

The approved work plan included the collection of groundwater elevation data, sampling the
monitoring wells, conducting a top-of-casing survey of the wells, and preparing a summary
report. Free product was not measured in any of the wells during the September 2024 sampling
event. A site map depicting the monitoring well locations and surrounding area features is
358 South 700 East, B518
Salt Lake City, Utah 84102
Office: 801.935.4917
www.oneatlas.com

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ATLAS
presented as Figure 1. Prior to well purging, groundwater depths were measured in each well
using an electronic water level/free product interface probe. The water level/free product
interface probe was decontaminated between each well with an Alconox detergent wash and
tap water rinse.

Following field parameter measurements, the monitoring wells to be sampled were purged a
minimum of three well volumes or until dry using new, factory-sealed, disposable PVC bailers.
Following the purging process, the wells were allowed to recharge to within 95 percent of the
pre-purge water level and then sampled. The samples were transferred to appropriate
containers and immediately placed on ice in an insulated cooler and then transported under
chain-of-custody documentation to a Utah-certified laboratory for analysis. The groundwater
samples were analyzed for methyl t-butyl ether, benzene, toluene, ethyl benzene, total xylenes,
naphthalene (MBTEXN) using EPA Method 8260; and total petroleum hydrocarbons as gasoline
(TPH-GRO), and TPH as diesel (TPH-DRO) using EPA Method 8015. A field blank sample was
also collected. The laboratory report and chain of custody are presented in Appendix A.

The free product absorbent sock was removed from monitoring well MW -6 prior to sampling.
Monitoring well MW -9 was destroyed/paved over during the spring of 2023. Historically, free
product had been measured in MW -9. A new product absorbent sock was installed in MW -6 at
the end of the sampling event to absorb any free product entering the wells due to groundwater
fluctuation. The used sock was containerized and taken to Sump & Trap Cleaning, Salt Lake
City, Utah, for disposal.

Field Parameter and Chemical Analysis Results

Field parameter measurements and groundwater laboratory results are presented in Table 1.
The September 2024 groundwater elevation data were utilized to prepare a groundwater
contour map (Figure 2) for the site. The data indicate that groundwater gradient appears to be
toward the west, with a gradient of approximately 0.034 ft/ft measured between MW-18 and
MW -20.

The September 2024 laboratory results for the samples collected from on-site monitoring wells
MW -3, MW -6, MW -13, MW -15, and MW-20, indicated no detection of MBTEXN constituents
above their respective Tier 1 Screening Levels. The TPH-GRO and TPH-DRO Tier 1 Screening
Level of 10 mg/L was not exceeded in any of the on-site monitoring wells sampled.

The September 2024 laboratory results for the samples collected from the off-site monitoring
wells indicate the presence of benzene above its Initial Screening Level (ISL) of 0.005 mg/L in
MW -8 (2.140 mg/L). In addition, ethylbenzene was detected above its ISL of 0.7 mg/L in MW -8
(1.180 mg/L). No other MBTEXN constituents were measured above their respective ISLs in
any of the other off-site wells sampled. The benzene isoconcentration map is presented as
Figure 3.

The TPH-GRO ISL of 1.0 mg/l was exceeded in MW-8 (7.520 mg/L). In addition, the TPH-DRO
ISL of 1.0 mg/l was exceeded in MW -7 (3.040 mg/L), MW -8 (6.340 mg/L), MW -21 (2.360 mg/L),
MW -22 (1.320 mg/L), and MW -23 (1.410 mg/L). The TPH-GRO isoconcentration map is
presented as Figure 4 and the TPH-DRO isoconcentration map is presented as Figure 5.

To aid in long-term data trends, hydrographs were prepared for MW -8 and MW -15. These are
presented as Figures 6 and 7; and are discussed in the following paragraphs. These wells were
selected based on location in relation to the release source and historically impacted areas. The
hydrograph for MW -8 (Figure 6) indicates that the groundwater elevation has decreased since
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ATLAS
the June 2024 monitoring event. Historical data indicates that benzene concentrations have
fluctuated between 0.983 mg/L (June 2020) to 3.93 mg/L (May 2011). In September 2024 the
benzene concentration was measured at 2.140 mg/L. Historical data indicates that the TPH-
GRO concentrations have fluctuated between 2.7 mg/L (June 2008) to 115.00 mg/L (September
2012). In September 2024 the TPH-GRO concentration was measured at 7.520 mg/L.

The hydrograph for MW -15 (Figure 7) indicates that the groundwater elevation was similar to
the June 2024 monitoring event. The benzene concentrations had fluctuated between 0.011
mg/L (March 2022) to 0.420 (May 2012). The data collected in 2020 indicated a steady
decrease; however, since 2021, the benzene concentrations in MW -15 have increased or
decreased in correlation to decreasing or increasing water levels. The benzene concentration
for September 2024 was 0.0690 mg/L. TPH-GRO concentrations have increased since the June
2024 monitoring event. The TPH-GRO concentration for September 2024 was 1.410 mg/L.

CONCLUSIONS AND RECOMMENDATIONS

Free product was not measured in any of the wells during the September 2024 sampling event.
Laboratory results for on-site wells indicated no detection of MBTEXN constituents above their
respective Tier 1 Screening Levels. The TPH-GRO and TPH-DRO Tier 1 Screening Levels were
not exceeded in any of the on-site monitoring wells sampled.

Laboratory results indicate that the benzene ISL was exceeded in off-site well MW -8. In
addition, the ethylbenzene ISL was exceeded in MW -8. TPH-GRO was measured above the ISL
of 1.0 mg/L in MW -8. TPH-DRO exceeded the ISL of 1.0 mg/L in MW -7, MW -8, MW -21, MW -22,
and MW-23. No other ISLs were exceeded in any of the other off-site monitoring wells sampled.

In June of 2010 approximately 1,461 yd3 of impacted soil were removed from the site and
transported to the Emery County Landfill for disposal. The results of the confirmatory soil
sampling suggested that significant adsorbed phase hydrocarbons were successfully removed
during the excavation activities; however, the data from the September 2024 monitoring event
indicate that groundwater impacts above ISLs are still present off-site.

An expanded subsurface investigation was performed in December 2023. Five monitoring wells
(MW -20 through MW -24) were installed in the general vicinity of the former Aboveground
Storage Tank (AST) facility and to the southwest off site. An attempt was made to obtain an
access agreement from the automobile dealership located to the west beyond Carbonville Road
to install additional wells; however, the property owner denied access to the property, limiting
the attempt to define the extent of free product impacts.

Based upon the data collected during the September 2024 groundwater sampling event, Atlas
recommends that groundwater monitoring continue at the site. The September 2024 sampling is
the second event under work assignment HZZ-33-A1. The next sampling event is scheduled for
December 2024.

Our services consist of professional opinions and recommendations made in accordance with
generally accepted geotechnical and environmental engineering principles and practices. This
warranty is in lieu of all other warranties either expressed or implied. Should you have any
questions, please do not hesitate to call us at [phone].
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ATLAS
Sincerely,

Atlas Technical Consultants
Olaf Questereit Jim Coletta, P.G.
Senior Technician Branch Manager
Utah Certified UST Consultant

FIGURES

0 120'60'30'
FIGURE 1
0 120'60'30'
FIGURE 2
0 120'60'30'
FIGURE 3
0 120'60'30'
FIGURE 4
0 120'60'30'
FIGURE 5
67.3
68.3
69.3
70.3
71.3
72.3
73.3
0.001
0.010
0.100
1.000
10.000
100.000
1000.000
Gr
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Figure 6
MW-8 Benzene, TPH-GRO, and Groundwater Elevation vs. Time
Benzene TPH-GRO Benzene Initial Screening Level
TPH-GRO Initial Screening Level Groundwater Elevation
Top of Well Casing Resurveyed on 06/27/2024
73.5
74.5
75.5
76.5
77.5
78.5
79.5
80.5
0.001
0.010
0.100
1.000
10.000
100.000
Gr
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Figure 7
MW-15 Benzene, TPH-GRO, and Groundwater Elevation vs. Time
Benzene TPH-GRO Benzene Tier 1 Screening Level
TPH-GRO Tier 1 Screening Level Groundwater Elevation
Well casing
resurveyed on
6/27/24.
TABLES
1 of 7
TABLE 1
GROUNDWATER ANALYTICAL AND GROUNDWATER ELEVATION DATA SUMMARY
WESTERN TRANSMISSION
150 NORTH CARBONVILLE ROAD
PRICE, UTAH
SAMPLE ETHYL-NAPH-
LOCATION DATE BENZENE TOLUENE BENZENE XYLENES THALENE MTBE TPH-GRO TPH-DRO DTW FPT WTE
TOC (ft.)MM/DD/YY (mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(feet)(feet)(feet)
Initial Screening Levels 0.005 1.0 0.7 10 0.7 0.2 1.0 1.0
RBCA Tier 1 Levels 0.3 3.0 4.0 10 0.7 0.2 10 10
MW-3 06/25/08 NS NS NS NS NS NS NS NS 19.57 0.38 80.55
99.83 07/10/08 NS NS NS NS NS NS NS NS 19.81 0.13 80.12
03/24/09 0.00048 J <0.005 0.0008 J 0.00085 J 0.00087 J <0.005 0.36 NA 20.67 0.38 79.44
01/11/11 NM NM NM
05/23/11 <0.001 <0.002 <0.002 0.0013J <0.010 <0.002 0.156 J 1660 19.04 0.07 80.84
09/26/11 <0.001 <0.001 <0.001 <0.003 0.004 <0.001 4.89 F 46.7 F,M,X 18.72 Trace 81.11
05/07/12 <0.005 <0.005 <0.005 <0.015 <0.01 <0.005 1.02 F 55.0 F,M,X 18.78 Trace 81.05
09/17/12 <0.02 <0.02 <0.02 <0.06 <0.04 <0.02 <0.25 F 48.2 F,M,X 19.49 Trace 80.34
04/02/13 <0.005 <0.005 <0.005 <0.015 <0.01 <0.005 1.40 F 14.6 F,M,X 19.67 0.03 80.18
04/02/13*<0.005 <0.005 <0.005 <0.015 <0.01 <0.005 2.58 F 25.0 F,M,X NA NA NA
01/27/14 <0.005 <0.005 <0.005 <0.015 0.018 <0.005 1.17 F 108 X,M,F 20.30 0.36 79.80
08/13/14 <0.01 <0.001 <0.01 <0.03 0.203 <0.01 5.26 F 143 X,M,F Jlo 19.78 0.08 80.11
01/20/15 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 0.885 F 6.8 X,F,M 19.35 Trace 80.48
07/15/15 <0.020 R-06 <0.050 R-06 <0.050 R-06 <0.050 R-06 <0.050 R-06 <0.050 R-06 <2.40 R-06 185 19.53 0.30 80.53
08/23/16 20.68 0.23 79.32
02/16/17 20.20 0.03 79.65
08/30/17 <0.001 <0.001 <0.001 <0.003 <0.005 <0.001 102 437 19.77 0.00 80.06
02/20/18 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 25.4 20.10 0.00 79.73
08/06/18 20.49 0.12 79.43
01/24/19 NA NA NA
07/18/19 <0.001 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.675 B 38.4 19.93 0.00 79.90
01/22/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 5.590 19.65 0.00 80.18
06/18/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.317 B 1.200 19.93 0.00 79.90
12/03/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0774 J 2.640 19.58 0.00 80.25
09/28/21 21.43 0.01 78.41
03/14/22 20.21 0.04 79.65
09/06/22 20.60 0.24 79.41
03/06/23 19.96 0.03 79.89
01/23/24 <0.00100 <0.00100 <0.00100 <0.00300 0.00165 J <0.00100 2.750 14.700 20.15 0.00 79.68
95.17 06/28/24 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 J4 <0.500 2.390 20.24 0.00 74.93
09/17/24 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0719 B,J 4.240 20.18 0.00 74.99

MW-4 06/25/08 0.310 0.029 0.600 1.24 0.099 <0.005 9.50 1.80 19.84 0.00 80.16
100.00 07/10/08 NS NS NS NS NS NS NS NS 19.96 0.00 80.04
03/24/09 0.037 0.0011 J 0.14 0.034 0.0021 J <0.005 1.3 2.5 20.26 0.00 79.74
01/11/11
MW-5 06/25/08 0.029 0.079 0.083 0.530 0.039 <0.005 2.80 0.80 18.44 0.00 80.11
98.55 07/10/08 NS NS NS NS NS NS NS NS 18.54 0.00 80.01
03/24/09 0.026 0.013 0.087 0.052 0.0013 J <0.005 0.27 0.35 18.85 0.00 79.70
01/11/11
MW-6 06/25/08 0.015 0.0016 J 0.044 0.027 0.0059 <0.005 1.10 1.70 18.28 0.00 80.15
98.43 07/10/08 NS NS NS NS NS NS NS NS 18.38 0.00 80.05
03/24/09 0.0035 J <0.005 0.019 0.0179 0.0097 <0.005 0.22 3.8 18.68 0.00 79.75
98.24 01/11/11 0.049 0.0032J 0.360 0.077 0.072 <0.005 5.3 4.5 17.62 0.12 80.71
01/11/11*0.034 0.0018J 0.170 0.040 0.057 <0.005 5.7 4.7 NA NA NA
05/23/11 <0.001 <0.002 <0.002 0.0013J <0.010 <0.002 0.120 J 47.1 17.48 0.00 80.76
09/26/11 0.035 <0.005 0.180 0.059 0.061 <0.005 7.23 F <1F Jhi,M,X 17.16 0.00 81.08
05/07/12 0.022 <0.005 0.060 <0.015 0.016 <0.005 3.87 F 3.2 F,M,X 17.21 0.00 81.03
09/17/12 0.109 <0.02 0.191 <0.06 <0.04 <0.02 2.75 F 5.6 F,M,X 18.18 0.27 80.26
04/02/13 0.065 <0.005 0.155 0.028 0.055 <0.005 2.64 F 8.52 F,M,X 18.08 0.03 80.18
01/27/14 0.029 <0.02 0.099 <0.06 <0.04 <0.02 35.9 F 45.5 X,M,F 18.46 0.02 79.80
08/13/14 <0.01 <0.01 0.037 <0.03 0.030 <0.001 1.06 F 14.4 X,M,F 18.21 0.03 80.05
01/20/15 0.018 <0.001 0.048 0.003 0.021 <0.001 2.84 F 7.7 X,M,F 17.97 0.03 80.29
07/15/15 0.013 <0.005 0.025 <0.005 0.021 <0.005 1.02 5.5 18.97 0.19 79.41
08/23/16 19.17 0.22 79.24
02/16/17 18.68 0.03 79.58
08/30/17 18.30 0.08 80.00
02/20/18 <0.005 <0.012 0.012 <0.012 <0.012 <0.005 0.550 3.7 18.60 0.00 79.64
2/20/18*<0.005 <0.012 0.016 <0.012 <0.012 <0.005 0.587 3.3 NA NA NA
08/06/18 19.02 0.14 79.33
01/24/19 18.78 0.07 79.51
07/18/19 0.00519 <0.00100 0.0161 <0.00300 <0.00500 <0.00100 2.35 B 5.35 18.45 0.00 79.79
07/18/19*<0.0100 <0.0100 0.0133 <0.0300 <0.0500 <0.0100 <5.0 5.40 NA NA NA
01/22/20 0.00881 <0.00100 0.0182 <0.00300 0.00390 J <0.00100 0.498 12.800 18.17 0.00 80.07
06/18/20 0.00122 <0.00100 0.00276 <0.00300 <0.00500 <0.00100 0.317 B 1.680 18.47 0.00 79.77
12/03/20 0.0113 0.000409 J 0.0261 0.000829 J 0.00198 J <0.00100 0.860 1.440 18.11 0.00 80.13
12/03/20*0.0127 0.000421 J 0.0284 0.000935 J 0.00223 J <0.00100 0.588 1.300 NA NA NA
09/28/21 0.00422 <0.00100 0.0155 0.000416 J 0.00141 J <0.00100 0.469 B 1.770 18.97 0.00 79.27
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Located (well was under a snow removal pile)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Under Snow Pack, Not Located
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Destroyed During Excavation
Destroyed During Excavation
Not Sampled (Free Product In Well)
2 of 7
TABLE 1
GROUNDWATER ANALYTICAL AND GROUNDWATER ELEVATION DATA SUMMARY
WESTERN TRANSMISSION
150 NORTH CARBONVILLE ROAD
PRICE, UTAH
SAMPLE ETHYL-NAPH-
LOCATION DATE BENZENE TOLUENE BENZENE XYLENES THALENE MTBE TPH-GRO TPH-DRO DTW FPT WTE
TOC (ft.)MM/DD/YY (mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(feet)(feet)(feet)
Initial Screening Levels 0.005 1.0 0.7 10 0.7 0.2 1.0 1.0
RBCA Tier 1 Levels 0.3 3.0 4.0 10 0.7 0.2 10 10
MW-6 03/14/22 0.00536 <0.00100 0.0169 0.000493 J 0.00200 J <0.00100 0.708 1.160 18.74 0.00 79.50
Cont.09/07/22 0.0125 0.000370 J 0.0784 0.00141 J 0.0131 C4 <0.00100 1.400 8.580 J3 18.96 0.00 79.28
03/06/23 18.52 0.05 79.76
01/23/24 0.00138 <0.00100 0.0158 0.000664 J 0.00133 J <0.00100 1.530 1.630 18.69 0.00 79.55
93.63 06/28/24 0.00180 <0.00100 0.0228 0.00120 J 0.00506 <0.00100 J4 1.300 4.550 18.77 0.00 74.86
09/17/24 0.00253 <0.00100 0.0272 0.00136 J 0.00458 J <0.00100 4.500 2.850 18.70 0.00 74.93
MW-7 06/25/08 <0.005 <0.005 <0.005 0.0032 J 0.0038 J <0.005 0.050 0.520 17.17 0.00 80.13
97.30 07/10/08 NS NS NS NS NS NS NS NS 17.27 0.00 80.03
03/24/09 <0.005 <0.005 <0.005 <0.005 0.00012 J <0.005 0.03 J 2.00 17.57 0.00 79.73
01/11/11 0.00026J <0.001 0.00078J <0.001 0.00046J <0.001 0.14 5.8 16.86 0.27 80.64
05/23/11 0.0065 <0.002 0.0849 0.0168 0.0204 <0.002 1.42 43.6 16.55 0.00 80.75
09/26/11 <0.001 <0.001 <0.001UJ <0.003 <0.002 <0.001 0.634 F 4.1 F,M,X 16.20 0.42 81.42
9/26/2011*<0.001 <0.001 <0.001 <0.003 <0.002 <0.001UJ 0.235 F 7.0 F,Jlo, M,X NA NA NA
05/07/12 <0.005 <0.005 <0.005 <0.015 <0.001 <0.005 0.050 F 6.8 F,M,X 16.49 0.25 81.00
09/17/12 <0.02 <0.02 <0.02 <0.06 <0.04 <0.02 <0.25 F 8.9 F,M,X 17.35 0.40 80.25
04/02/13 <0.02 <0.02 <0.02 <0.06 <0.04 <0.02 1.61 F 18.9 F,M,X 17.56 0.43 80.06
01/27/14 <0.01 <0.01 <0.01 <0.03 <0.02 <0.01 1.05 F 36.9 X,M,F 17.50 0.33 80.05
08/13/14 <0.001 <0.001 <0.001 <0.003 0.002 <0.001 <0.05 F <1 X,M,F 17.30 0.00 80.00
01/20/15 <0.001 <0.001 <0.001 <0.003 0.009 <0.001 0.300 F 35.0 X,M,F 16.95 Trace 80.35
07/15/15 <0.002 <0.005 <0.005 <0.005 <0.005 <0.005 <0.240 3.1 17.90 0.10 79.48
08/23/16 18.74 0.84 79.19
02/16/17 18.04 0.44 79.59
08/30/17 17.67 0.38 79.92
02/20/18 17.62 0.23 79.85
08/06/18 18.99 1.16 79.18
01/24/19 NA NA NA
07/18/19 17.44 0.03 79.88
01/22/20 17.45 0.33 80.10
06/18/20 17.73 0.25 79.76
12/03/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.114 2.270 17.15 0.00 80.15
09/28/21 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.146 B 1.980 18.00 0.00 79.30
03/14/22 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0863 BJ 2.010 22.78 0.00 74.52
09/06/22 18.55 0.54 79.16
03/06/23 17.74 0.25 79.75
03/06/23 17.85 0.17 79.58
01/22/24 17.85 0.17 79.58
92.63 06/28/24 <0.00100 <0.00100 <0.00100 0.000298 J <0.00500 <0.00100 J4 0.0941 J 3.510 17.80 0.00 74.83
09/17/24 <0.00100 <0.000344 J <0.00100 0.000309 J <0.00132 J <0.00100 0.116 B 3.040 17.76 0.00 74.87

MW-8 06/25/08 1.10 0.280 0.900 1.85 0.200 <0.005 2.70 3.80 23.93 0.00 73.33
97.26 07/10/08 NS NS NS NS NS NS NS NS 24.19 0.00 73.07
03/24/09 1.60 0.36 0.69 0.98 0.12 <0.005 12 6.40 25.06 0.00 72.20
01/11/11 3.00 0.920 1.400 3.600 0.310 <0.010 29 3.9 24.68 0.01 72.59
05/23/11 3.86 1.19 1.82 5.68 0.421J <0.010 12 14.3 23.90 0.00 73.36
5/23/11*3.93 1.53 1.76 7.28 0.412J <0.010 13.8 29.8 NA NA NA
09/26/11 2.92 0.43 1.57 4.43 0.356 <0.02UJ 20.9 F 10.4 F,M,X 24.41 0.00 72.85
05/07/12 2.95 0.908 1.44 3.92 0.287 <0.02 22.1 F 1.4 F,M,X 24.25 0.00 73.01
09/17/12 1.68 0.308 2.10 4.22 <0.5 <0.25 115 F 22.9 F,M,X 25.11 Trace 72.15
04/02/13 1.32 0.086 0.922 0.796 0.149 <0.02 24.2 F 1.91 F,M,X 24.99 Trace 72.27
01/27/14 2.34 0.319 1.19 2.32 0.214 <0.02 11.8 F 6.3 X,M,F,Jlo 25.54 0.05 71.76
08/13/14 1.07 0.087 1.01 0.880 0.093 <0.01 7.94 F 1.1 F,M,X 25.96 0.33 71.55
01/20/15 3.02 0.223 1.31 1.73 0.271 <0.01 11.6 F 3.7 F,M,X 24.70 Trace 72.56
07/15/15 2.40 <0.500 1.54 2.12 <0.500 <0.500 7.70 12.5 25.13 Trace 72.13
08/23/16 26.36 0.27 71.10
02/16/17 1.75 0.167 1.03 2.62 0.215 <0.100 13.8 17.9 25.41 0.00 71.85
08/30/17 1.93 0.0919 1.65 1.71 0.338 <0.05 25.0 13.0 25.06 0.00 72.20
02/20/18 2.34 0.078 1.68 1.11 0.227 <0.005 12.0 7.9 25.30 0.00 71.96
08/06/18 2.36 0.205 1.72 1.86 0.200 <0.005 7.34 43.7 25.81 0.00 71.45
01/24/19 2.58 0.219 1.74 2.77 0.146 <0.005 14.8 7.0 25.50 0.00 71.76
07/18/19 1.58 <0.100 1.57 2.54 <0.500 <0.100 <50.0 10.6 24.28 0.00 72.98
01/22/20 1.660 0.0949 1.450 1.110 0.185 <0.0200 23.000 7.540 24.76 0.00 72.50
01/22/20*1.440 0.116 1.110 1.350 0.347 <0.0250 37.500 7.740 NA NA NA
06/18/20 0.983 0.0559 J 1.250 0.840 0.198 J <0.100 10.600 8.810 24.52 0.00 72.74
12/03/20 2.140 0.0660 1.270 1.380 0.0815 J <0.100 18.000 7.490 25.28 0.00 71.98
09/28/21 2.060 0.127 1.030 1.920 <0.500 <0.100 25.500 6.160 25.83 0.00 71.43
03/14/22 2.480 0.121 1.320 2.270 0.170 J <0.100 22.500 J3 9.010 25.31 0.00 71.95
09/07/22 1.660 0.117 1.080 1.710 0.0379 J,J4 <0.0100 14.700 7.350 J3 25.99 0.00 71.27
Not Sampled (Free Product In Well)
Not Located (well was under a snow removal pile)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
3 of 7
TABLE 1
GROUNDWATER ANALYTICAL AND GROUNDWATER ELEVATION DATA SUMMARY
WESTERN TRANSMISSION
150 NORTH CARBONVILLE ROAD
PRICE, UTAH
SAMPLE ETHYL-NAPH-
LOCATION DATE BENZENE TOLUENE BENZENE XYLENES THALENE MTBE TPH-GRO TPH-DRO DTW FPT WTE
TOC (ft.)MM/DD/YY (mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(feet)(feet)(feet)
Initial Screening Levels 0.005 1.0 0.7 10 0.7 0.2 1.0 1.0
RBCA Tier 1 Levels 0.3 3.0 4.0 10 0.7 0.2 10 10
MW-8 03/06/23 2.270 0.114 1.120 1.640 0.000151 J <0.0500 21.100 B 5.940 25.30 0.00 71.96
Cont.01/23/24 2.270 0.0366 1.270 0.478 0.128 <0.00100 12.300 7.590 25.30 0.00 71.96
92.62 06/28/24 1.820 0.0546 J 1.050 0.407 <0.00500 <0.00100 J4 13.300 5.680 24.66 0.00 67.96
09/17/24 2.140 0.0358 J 1.180 0.313 <0.00500 <0.00100 7.520 6.340 25.22 0.00 67.40
MW-9 06/25/08 0.021 0.0039 J 0.024 0.074 0.012 <0.005 1.40 6.40 22.50 0.00 72.79
95.29 07/10/08 NS NS NS NS NS NS NS NS 24.19 0.00 71.10
03/24/09 0.0058 <0.005 0.0017 J 0.00192 J 0.00044 J <0.005 0.10 5.50 23.44 0.00 71.85
01/11/11 0.082 0.016 0.095 0.227 0.045 <0.005 4.5 2.3 23.40 0.32 72.13
05/23/11 0.109 0.0174 0.164 0.332 0.0616 <0.010 3.84 321 22.58 0.18 72.85
09/26/11 0.059 0.010 0.123 0.307 0.089 <0.005UJ 7.41 F 11.6 F,M,X 23.26 0.42 72.35
05/07/12 0.058 0.010 0.078 0.197 0.044 <0.01 10.6 F 1.6 F,M,X 22.86 0.03 72.45
09/17/12 0.037 <0.01 0.051 0.145 <0.02 <0.01 1.32 F 4.2 F,M,X 24.35 0.84 71.57
04/02/13 0.068 <0.01 0.028 0.037 0.029 <0.01 4.27 F 2.39 F,M,X 23.62 0.24 71.85
01/27/14 0.044 0.008 0.076 0.186 0.081 <0.005 1.97 F 32.4 F,M,X 23.62 0.98 72.41
08/13/14 0.021 <0.01 0.039 0.058 <0.02 <0.01 0.550 F 45.2 F.M.X.Jlo 24.79 0.73 71.05
01/20/15 0.080 <0.02 0.131 0.247 0.127 <0.02 7.47 F 60.7 F,M,X 23.07 0.32 72.46
07/15/15 0.069 <0.050 0.098 <0.050 <0.050 <0.050 <2.40 7.9 24.05 0.52 71.63
08/23/16 25.54 1.13 70.60
02/16/17 24.65 0.90 71.32
08/30/17 23.46 0.94 72.54
02/20/18 24.47 0.72 71.36
08/06/18 24.88 0.66 70.91
01/24/19 24.42 0.42 71.19
07/18/19 22.93 0.18 72.50
01/22/20 23.47 0.09 71.89
06/18/20 22.14 0.01 73.16
12/03/20 23.90 0.00 71.39
09/28/21 24.37 0.00 70.92
03/14/22 23.84 0.00 71.45
09/06/22 24.75 0.31 70.77
03/06/23
MW-10 03/24/09 0.00035 J 0.00037 J <0.005 <0.005 <0.005 <0.005 <0.1 0.53 18.50 0.00 72.13
90.63 01/11/11 NM NM NM
05/23/11 <0.001 <0.002 <0.002 <0.004 <0.010 <0.002 <0.20 <0.42 17.46 0.00 73.17
09/26/11 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001UJ <0.05 F <1 F,M,X 18.31 0.00 72.32
05/07/12 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 17.87 0.00 72.76
5/7/2012*<0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X NA NA NA
09/17/12 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 18.75 0.00 71.88
04/02/13 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 18.60 0.00 72.03
01/27/14 <0.001 <0.001 <0.001 <0.003 0.004 <0.001 <0.05 F <1 F,M,X 19.17 0.00 71.46
08/13/14 <0.001 <0.001 <0.001 <0.003 0.004 <0.001 <0.05 F <1 F,M,X 19.32 0.00 71.31
01/20/15 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 18.27 0.00 72.36
07/15/15 <0.002 <0.005 <0.005 <0.005 <0.005 <0.005 <0.240 <1.0 18.75 0.00 71.88
08/23/16 <0.002 <0.005 <0.005 <0.005 <0.005 <0.005 <0.050 <1.0 19.82 0.00 70.81
02/16/17 <0.005 <0.012 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0 18.97 0.00 71.66
08/30/17 <0.001 <0.001 <0.001 <0.003 <0.005 <0.001 <0.100 <0.100 18.74 0.00 71.89
02/20/18 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 18.94 0.00 71.69
08/06/18 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 19.49 0.00 71.14
01/24/19 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 19.16 0.00 71.47
07/18/19 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.500 <0.100 17.88 0.00 72.75
01/22/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 <0.100 18.42 0.00 72.21
06/18/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 J4 <0.00100 <0.100 <0.100 18.18 0.00 72.45
12/03/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 0.00105 <0.100 0.0323 J 18.97 0.00 71.66
09/28/21 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 0.000470 J <0.100 0.0972 J 19.52 0.00 71.11
03/14/22 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 0.00158 <0.100 0.0879 J 18.97 0.00 71.66
09/07/22 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 J4 0.000400 J <0.100 0.0828 J,J3 19.67 0.00 70.96
03/06/23 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 0.00164 <0.100 <0.100 18.94 0.00 71.69
01/22/24 18.94 0.00 71.69
86.02 06/27/24 18.26 0.00 67.76
09/16/24 18.93 0.00 67.09
MW-11 03/24/09 <0.005 <0.005 <0.005 <0.005 0.00012 J <0.005 <0.1 0.095 J 22.38 0.00 72.51
94.89 01/11/11 NM NM NM
05/23/11
09/26/11 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001UJ <0.05 F <1 F,M,X 21.84 0.00 73.05
05/07/12 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 21.77 0.00 73.12
09/17/12 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 22.58 0.00 72.31
Not Located, Covered by Asphalt
Not Sampled
Located, Asphalted Over
Not Located, Asphalted Over
Not Sampled (Free Product In Well)
Not Sampled (Not Included in Sampling Event)
Not Sampled
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Not Included in Sampling Event)
Not Sampled
Not Sampled (Free Product In Well)
Not Sampled (Not Included in Sampling Event)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not Sampled (Not Included in Sampling Event)
Not Located, Asphalted Over
4 of 7
TABLE 1
GROUNDWATER ANALYTICAL AND GROUNDWATER ELEVATION DATA SUMMARY
WESTERN TRANSMISSION
150 NORTH CARBONVILLE ROAD
PRICE, UTAH
SAMPLE ETHYL-NAPH-
LOCATION DATE BENZENE TOLUENE BENZENE XYLENES THALENE MTBE TPH-GRO TPH-DRO DTW FPT WTE
TOC (ft.)MM/DD/YY (mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(feet)(feet)(feet)
Initial Screening Levels 0.005 1.0 0.7 10 0.7 0.2 1.0 1.0
RBCA Tier 1 Levels 0.3 3.0 4.0 10 0.7 0.2 10 10
MW-11 04/02/13 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 22.37 0.00 72.52
Cont.01/27/14 <0.001 <0.001 <0.001 <0.003 0.005 <0.001 <0.05 F <1 F,M,X 22.97 0.00 71.92
08/13/14 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 23.12 0.00 71.77
01/20/15 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 22.03 0.00 72.86
07/15/15 <0.002 <0.005 <0.005 <0.005 <0.005 <0.005 <0.240 <1.0 22.58 0.00 72.31
08/23/16 <0.002 <0.005 <0.005 <0.005 <0.005 <0.005 <0.050 <1.0 23.70 0.00 71.19
02/16/17 <0.005 <0.012 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0 22.88 0.00 72.01
08/30/17 <0.001 <0.001 <0.001 <0.003 <0.005 <0.001 <0.100 <0.100 22.55 0.00 72.34
02/20/18 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 22.72 0.00 72.17
08/06/18 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 23.30 0.00 71.59
08/06/18*<0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 NA NA NA
01/24/19 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 22.95 0.00 71.94
07/18/19 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.500 <0.100 21.70 0.00 73.19
01/22/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 0.0632 J 22.19 0.00 72.70
06/18/20 0.000143 J <0.00100 <0.00100 <0.00300 <0.00500 J4 <0.00100 <0.100 <0.100 21.97 0.00 72.92
12/03/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 <0.100 22.71 0.00 72.18
09/28/21 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 0.115 23.38 0.00 71.51
03/14/22 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 0.0899 J 22.78 0.00 72.11
09/07/22 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 J4 <0.00100 <0.100 0.0421 J,J3 23.55 0.00 71.34
03/06/23 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 0.0656 J 22.78 0.00 72.11
01/22/24 22.77 0.00 72.12
90.17 06/27/24 22.09 0.00 68.08
09/16/24 22.74 0.00 67.43

MW-12 03/24/09 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.1 0.021 J 19.14 0.00 72.06
91.20 01/11/11 NM NM NM
TH-3 06/25/08 NM NM NM
NM 07/10/08 19.96 NM NM
03/24/09 NM NM NM
01/11/11
MW-13 01/11/11 0.0055 0.0025 0.0027 0.028 0.0012 <0.001 0.39 0.14 17.69 0.00 80.67
98.36 05/23/11 0.0026 <0.002 0.0017J 0.0027J <0.010 <0.002 0.144 J 0.610 16.58 0.00 81.78
09/26/11 0.004 <0.001 0.004 <0.003 <0.002 <0.001UJ 0.105 F <1 F,M,X 17.31 0.00 81.05
05/07/12 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F 0.114 F,M,X 17.74 0.00 80.62
09/17/12 <0.001 <0.001 0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 18.18 0.00 80.18
04/02/13 0.073 <0.001 0.023 0.004 <0.002 <0.001 0.253 F <1 F,M,X 23.50 0.00 74.86
01/27/14 0.001 <0.001 0.003 <0.003 <0.002 <0.001 0.117 F <1 F,M,X 18.58 0.00 79.78
01/27/14*0.002 <0.001 0.004 <0.003 <0.002 <0.001 0.077 <1 F,M,X NA NA NA
08/13/14 <0.001 <0.001 0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 18.30 0.00 80.06
01/20/15 0.001 <0.001 0.004 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 17.89 0.00 80.47
07/15/15 0.003 <0.005 0.006 <0.005 <0.005 <0.005 <0.240 <1.0 19.92 0.00 78.44
08/23/16 19.15 0.10 79.29
02/16/17 0.045 <0.012 0.059 <0.012 <0.012 <0.012 0.544 3.8 18.73 0.00 79.63
2/16/17*0.045 <0.012 0.063 <0.012 <0.012 <0.012 0.572 4.1 NA NA NA
08/30/17 0.00406 0.00116 0.0865 0.00851 <0.005 <0.001 2.93 3.26 18.30 0.00 80.06
02/20/18 <0.005 <0.012 0.069 <0.012 <0.012 <0.005 0.814 1.3 18.61 0.00 79.75
08/06/18 <0.005 <0.012 0.02 <0.012 <0.012 <0.005 1.29 <1.0 18.95 0.00 79.41
01/24/19 0.007 <0.012 0.106 0.018 <0.012 <0.005 7.43 8.6 18.75 0.00 79.61
07/18/19 <0.0100 <0.0100 <0.0100 <0.0300 <0.0500 <0.0100 <5.00 2.62 18.48 0.00 79.88
01/22/20 0.00136 <0.00100 0.0220 0.00144 J <0.0500 <0.00100 0.968 1.500 18.21 0.00 80.15
06/18/20 0.000857 J 0.000638 J 0.0106 0.000786 J 0.00155 J <0.00100 0.822 B,J 1.320 18.49 0.00 79.87
12/03/20 0.00325 0.000660 J 0.0177 0.00596 <0.00500 <0.00100 0.549 0.818 18.14 0.00 80.22
09/28/21 0.00827 0.00125 0.0321 0.00692 0.00191 J <0.00100 1.540 4.050 18.99 0.00 79.37
03/14/22 0.00140 <0.00100 0.00733 0.00104 J <0.00500 <0.00100 0.786 1.520 18.75 0.00 79.61
09/06/22 19.01 0.06 79.40
03/06/23 0.00142 <0.00100 0.0323 0.00168 J 0.00182 J <0.00100 0.630 1.390 18.51 0.00 79.85
01/22/24 0.0116 0.00151 0.109 0.0101 0.00458 J <0.00100 1.610 1.680 18.70 0.00 79.66
93.67 06/28/24 0.00862 0.00140 0.0413 0.00451 0.00192 J <0.00100 J4 0.805 1.750 18.79 0.00 74.88
09/17/24 0.00469 0.000663 J 0.0295 0.00590 0.00111 J <0.00100 1.080 1.610 18.72 0.00 74.95
MW-14 01/11/11 0.00035 0.00032J 0.0011 0.0056 0.0013 <0.001 0.22 0.1 18.64 0.00 80.69
99.33 05/23/11 <0.001 <0.002 <0.002 <0.004 <0.010 <0.002 <0.20 <0.42 18.55 0.00 80.78
09/26/11 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001UJ <0.05 F <1 F,M,X 18.25 0.00 81.08
05/07/12 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 18.30 0.00 81.03
09/17/12 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 19.03 0.00 80.30
04/02/13 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 19.18 0.00 80.15
01/27/14 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.005 <1 F,M,X 19.51 0.00 79.82
08/13/14 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 19.24 0.00 80.09
Not Sampled
Dry
Not Sampled
Dry
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
Not enough water to sample
Not Sampled
Not Located, Asphalted Over
Destroyed During Excavation
5 of 7
TABLE 1
GROUNDWATER ANALYTICAL AND GROUNDWATER ELEVATION DATA SUMMARY
WESTERN TRANSMISSION
150 NORTH CARBONVILLE ROAD
PRICE, UTAH
SAMPLE ETHYL-NAPH-
LOCATION DATE BENZENE TOLUENE BENZENE XYLENES THALENE MTBE TPH-GRO TPH-DRO DTW FPT WTE
TOC (ft.)MM/DD/YY (mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(feet)(feet)(feet)
Initial Screening Levels 0.005 1.0 0.7 10 0.7 0.2 1.0 1.0
RBCA Tier 1 Levels 0.3 3.0 4.0 10 0.7 0.2 10 10
MW-14 01/20/15 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 18.86 0.00 80.47
Cont.07/15/15 <0.002 <0.005 <0.005 <0.005 <0.005 <0.005 <0.240 <1.0 19.89 0.00 79.44
08/23/16 <0.002 <0.005 0.005 <0.005 <0.005 <0.005 1.97 4.2 20.02 Trace 79.31
02/16/17 <0.005 <0.012 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0 19.70 0.00 79.63
08/30/17 <0.001 <0.001 <0.001 <0.003 <0.005 <0.001 0.460 0.633 19.25 0.00 80.08
02/20/18 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 19.60 0.00 79.73
08/06/18 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 19.88 0.00 79.45
01/24/19 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 19.70 0.00 79.63
07/18/19 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.500 1.52 19.43 0.00 79.90
01/22/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 0.0846 J 19.14 0.00 80.19
06/18/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0961 B,J <0.100 19.43 0.00 79.90
12/03/20 <0.00100 <0.00100 <0.00100 0.000438 J <0.00500 <0.00100 <0.100 0.0335 J 19.07 0.00 80.26
09/28/21 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 0.0480 J 19.93 0.00 79.40
03/14/22 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 0.0849 J 19.68 0.00 79.65
09/07/22 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 J4 <0.00100 <0.100 0.0362 J,J3 19.91 0.00 79.42
03/06/23 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0576 B,J <0.100 19.45 0.00 79.88
01/22/24 19.63 0.00 79.70
94.63 06/27/24 19.72 0.00 74.91
09/16/24 19.65 0.00 74.98
MW-15 01/11/11 0.310 0.230 0.440 1.230 0.062 <0.001 14 2.1 20.29 0.00 79.66
99.95 05/23/11 0.397 0.279 1.06 3.31 0.0594J <0.020 11.6 27.4 20.08 0.00 79.87
09/26/11 0.140 0.086 0.272 0.854 0.013 <0.005UJ 5.71 1.0 F, Jlo,M,X 19.80 0.00 80.15
05/07/12 0.420 0.127 0.413 1.27 0.033 <0.01 8.86 F 1.8 F,M,X 19.80 0.00 80.15
09/17/12 0.172 0.087 0.175 0.847 <0.01 <0.005 3.79 F <1 F,M,X 20.73 0.00 79.22
9/17/2012*0.174 0.098 0.197 0.952 <0.01 <0.005 3.34 F <1 F,M,X NA NA NA
04/02/13 0.176 0.093 0.324 0.942 0.031 <0.01 16.3 F <1 F,M,X 20.97 Trace 78.98
01/27/14 0.123 0.044 0.217 0.382 <0.01 <0.005 3.60 F 1.5 X,M,F 21.30 0.00 78.65
08/13/14 0.226 0.041 0.154 0.229 <0.01 <0.005 4.94 F <1 F,M,X 21.00 0.00 78.95
01/20/15 0.157 0.029 0.212 0.405 <0.04 <0.02 2.53 F 3.6 F,M,X 20.50 0.00 79.45
07/15/15 0.183 0.073 0.137 0.427 <0.005 <0.005 1.47 5.9 21.46 Trace 78.49
7/15/15*0.166 0.061 0.133 0.411 <0.005 <0.005 1.77 1.2 NA NA NA
08/23/16 23.18 1.74 78.08
02/16/17 21.70 0.17 78.38
08/30/17 0.102 0.00895 0.0442 0.0211 <0.005 <0.001 3.06 1.12 20.99 0.00 78.96
02/20/18 0.085 <0.012 0.032 0.112 <0.012 <0.005 1.57 2.1 21.27 0.00 78.68
08/06/18 21.62 0.02 78.35
01/24/19 0.219 0.013 0.165 0.149 <0.012 <0.005 2.20 2.2 21.55 0.00 78.40
1/24/2019*0.220 0.012 0.169 0.150 <0.012 <0.005 2.40 2.0 NA NA NA
07/18/19 0.156 0.0304 0.127 0.295 <0.125 <0.0250 <12.5 6.29 20.85 0.00 79.10
01/22/20 0.0360 0.00235 0.167 0.114 <0.00500 <0.00100 3.080 2.140 20.61 0.00 79.34
06/18/20 0.0318 0.00187 J 0.131 0.0957 <0.00500 <0.00100 2.360 J 1.890 20.89 0.00 79.06
12/03/20 0.0272 0.00306 0.0515 0.0428 <0.00500 <0.00100 1.300 1.040 20.73 0.00 79.22
09/28/21 0.120 0.0245 0.0556 0.253 <0.0250 <0.00500 4.630 1.130 21.68 0.00 78.27
03/14/22 0.0110 0.000476 J 0.000896 J 0.0155 <0.00500 <0.00100 1.670 1.390 21.38 0.00 78.57
09/07/22 0.0918 0.0110 0.0431 0.117 0.00106 J, J4 <0.00100 1.910 1.030 21.76 0.00 78.19
03/06/23 0.0266 0.00114 0.00515 0.0420 <0.00500 <0.00100 1.460 1.890 21.25 0.00 78.70
01/22/24 0.0523 0.00393 0.0243 0.137 0.00148 J <0.00100 2.440 1.350 21.44 0.00 78.51
95.26 06/28/24 0.0344 0.00269 0.00423 0.0954 <0.00500 <0.00100 J4 1.280 1.410 21.39 0.00 73.87
09/17/24 0.0690 0.01070 0.0350 0.149 0.00105 J <0.00100 1.410 1.180 21.38 0.00 73.88
MW-16 08/13/14 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 23.55 0.00 71.50
95.05 01/20/15 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 22.54 0.00 72.51
07/15/15 <0.002 <0.005 <0.005 <0.005 <0.005 <0.005 <0.240 <1.0 22.97 0.00 72.08
08/23/16 <0.002 <0.005 <0.005 <0.005 <0.005 <0.005 <0.050 <1.0 23.70 0.00 71.35
02/16/17 <0.005 <0.012 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0 23.29 0.00 71.76
08/30/17 <0.001 <0.001 <0.001 <0.003 <0.005 <0.001 <0.100 <0.100 22.98 0.00 72.07
02/20/18 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 23.18 0.00 71.87
08/06/18 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 23.71 0.00 71.34
01/24/19 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 23.39 0.00 71.66
07/18/19 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.500 <0.100 22.12 0.00 72.93
01/22/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0498 B,J 0.0677 J 22.65 0.00 72.40
06/18/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 <0.100 22.41 0.00 72.64
12/03/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 0.0468 J 23.18 0.00 71.87
09/28/21 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 0.0922 J 23.77 0.00 71.28
03/14/22 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 0.0657 J 23.20 0.00 71.85
09/07/22 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 J4 <0.00100 <0.100 0.0339 J 23.93 0.00 71.12
Not Sampled
Not Sampled
Not Sampled (Free Product In Well)
Not Sampled
Not Sampled (Free Product In Well)
Not Sampled (Free Product In Well)
6 of 7
TABLE 1
GROUNDWATER ANALYTICAL AND GROUNDWATER ELEVATION DATA SUMMARY
WESTERN TRANSMISSION
150 NORTH CARBONVILLE ROAD
PRICE, UTAH
SAMPLE ETHYL-NAPH-
LOCATION DATE BENZENE TOLUENE BENZENE XYLENES THALENE MTBE TPH-GRO TPH-DRO DTW FPT WTE
TOC (ft.)MM/DD/YY (mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(feet)(feet)(feet)
Initial Screening Levels 0.005 1.0 0.7 10 0.7 0.2 1.0 1.0
RBCA Tier 1 Levels 0.3 3.0 4.0 10 0.7 0.2 10 10
MW-16 03/06/23 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0682 B,J <0.100 23.21 0.00 71.84
Cont.01/22/24 23.19 0.00 71.86
90.45 06/27/24 22.52 0.00 67.93
09/17/24 23.15 0.00 67.30
MW-17 08/13/14 0.055 <0.01 0.158 0.194 0.053 <0.01 13.0 F 7.5 F,M,X 22.87 0.00 71.39
94.26 01/20/15 0.014 <0.001 0.010 0.005 <0.002 <0.001 5.30 F 5.6 F,M,X 21.85 0.00 72.41
07/15/15 0.008 <0.005 0.006 0.005 <0.005 <0.005 <0.240 <1.0 22.30 0.00 71.96
08/23/16 0.109 <0.005 0.111 0.034 0.006 <0.005 1.64 1.4 23.36 0.00 70.90
08/23/16*0.045 <0.005 0.044 0.016 <0.005 <0.005 0.651 <1.0 NA NA NA
02/16/17 0.013 <0.012 0.024 0.027 <0.012 <0.012 0.716 1.8 22.59 0.00 71.67
08/30/17 0.0113 <0.001 0.0119 0.0171 <0.005 <0.001 1.16 0.383 22.29 0.00 71.97
02/20/18 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 22.50 0.00 71.76
08/06/18 0.031 <0.012 0.016 0.015 <0.012 <0.005 0.452 <1.0 23.01 0.00 71.25
01/24/19 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 0.148 <1.0 22.70 0.00 71.56
07/18/19 0.0602 <0.00100 0.00751 0.00597 <0.00500 <0.00100 0.597 B 0.962 21.44 0.00 72.82
01/22/20 0.0012 <0.00100 0.000778 J 0.00211 J <0.00500 <0.00100 0.281 B 0.0892 J 21.98 0.00 72.28
06/18/20 <0.00100 <0.00100 <0.00100 0.000207 J <0.00500 <0.00100 0.232 0.262 21.74 0.00 72.52
6/18/2020 *<0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.215 0.220 NA NA NA
12/03/20 0.000830 J 0.000448 J 0.000599 J 0.00205 J <0.00500 <0.00100 0.172 0.235 22.52 0.00 71.74
09/28/21 0.103 Q 0.00353 0.0856 0.0966 0.00947 <0.00100 1.130 7.710 23.07 0.00 71.19
03/14/22 0.000167 J <0.00100 <0.00100 0.000261 J <0.00500 <0.00100 0.197 B 0.265 22.52 0.00 71.74
09/07/22 0.000253 J <0.00100 0.000226 J 0.000275 J <0.00500 C4 <0.00100 <0.500 0.198 23.22 0.00 71.04
03/06/23 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.121 B 0.144 22.52 0.00 71.74
01/22/24 0.000540 J <0.00100 0.000202 J 0.000282 J <0.00500 <0.00100 0.178 0.266 B 22.50 0.00 71.76
89.63 06/28/24 0.000260 J <0.00100 <0.00100 0.000515 J <0.00500 <0.00100 J4 0.138 0.310 21.84 0.00 67.79
09/27/24 0.000246 J <0.00100 0.000557 J 0.000765 J <0.00500 <0.00100 0.196 B 0.211 22.46 0.00 67.17
MW-18 08/13/14 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 21.89 0.00 71.13
93.02 01/20/15 <0.001 <0.001 <0.001 <0.003 <0.002 <0.001 <0.05 F <1 F,M,X 20.93 0.00 72.09
07/15/15 <0.002 <0.005 <0.005 <0.005 <0.005 <0.005 <0.240 <1.0 21.31 0.00 71.71
08/23/16 <0.002 <0.005 <0.005 <0.005 <0.005 <0.005 <0.050 <1.0 22.37 0.00 70.65
02/16/17 <0.005 <0.012 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0 21.59 0.00 71.43
08/30/17 <0.001 <0.001 <0.001 <0.003 <0.005 <0.001 <0.100 0.273B 21.33 0.00 71.69
02/20/18 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 21.53 0.00 71.49
08/06/18 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 22.03 0.00 70.99
01/24/19 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0 21.73 0.00 71.29
07/18/19 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.500 0.280 20.50 0.00 72.52
01/22/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0680 B,J 0.0580 J 21.05 0.00 71.97
06/18/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0422 J 0.299 20.79 0.00 72.23
12/03/20 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0392 J 0.176 21.58 0.00 71.44
09/28/21 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0366 J 0.306 22.08 0.00 70.94
03/14/22 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0363 BJ 0.0885 J 21.54 0.00 71.48
09/07/22 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 J4 <0.00100 <0.100 0.113 22.20 0.00 70.82
03/06/23 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0433 B,J 0.0436 J 21.53 0.00 71.49
01/22/24 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0547 J 0.142 B 21.51 0.00 71.51
88.43 06/28/24 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 J4 <0.100 0.0628 J 20.85 0.00 67.58
09/17/24 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0385 B,J 0.152 21.48 0.00 66.95
MW-19 08/13/14 0.112 0.031 0.311 1.19 0.054 <0.005 4.18 F <1 F,M,X 24.05 0.00 71.92
95.97 8/13/14*0.117 0.033 0.324 1.28 0.055 <0.005 3.70 F <1 F,M,X NA NA NA
01/20/15 0.161 <0.001 0.224 0.013 0.125 <0.001 1.75 F 1.0 F,M,X 23.75 0.00 72.22
1/20/15*0.165 <0.001 0.228 0.013 0.123 <0.001 1.78 F 2.2 F,M,X NA NA NA
07/15/15 0.041 <0.005 0.066 0.009 0.022 <0.005 0.521 3.9 24.12 0.00 71.85
08/23/16 0.041 <0.005 0.014 0.019 0.005 <0.005 0.521 1.6 25.17 0.00 70.80
02/16/17 0.067 <0.012 0.028 0.062 0.024 <0.012 0.638 1.6 24.41 0.00 71.56
08/30/17 0.236 0.0169 0.115 0.248 0.0768 <0.001 3.30 2.60 24.10 0.00 71.87
8/30/17*0.233 0.0164 0.111 0.240 0.08 <0.001 3.21 2.66 NA NA NA
02/20/18 0.189 0.020 0.115 0.323 0.098 <0.005 1.95 2.2 24.37 0.00 71.60
08/06/18 0.056 <0.012 0.029 0.062 0.017 <0.005 0.560 1.0 24.85 0.00 71.12
01/24/19 0.174 0.018 0.106 0.193 0.068 <0.005 1.59 1.9 24.56 0.00 71.41
07/18/19 0.126 0.00714 0.0671 0.0480 0.0437 <0.00100 0.591 B 1.43 23.30 0.00 72.67
01/22/20 0.0182 0.00131 0.00958 0.00811 0.00558 <0.00100 0.492 B 0.844 23.86 0.00 72.11
06/18/20 0.0558 0.00373 0.0606 0.0495 0.0342 <0.00100 0.643 2.240 23.62 0.00 72.35
12/03/20 0.0124 0.00107 0.00538 0.00422 0.00121 J <0.00100 0.336 1.370 24.39 0.00 71.58
09/28/21 0.165 Q 0.000696 J 0.128 Q 0.000733 J 0.0339 Q <0.00100 1.970 2.140 24.88 0.00 71.09
03/14/22 0.00784 0.000528 J 0.00636 0.00368 <0.00500 <0.00100 0.405 0.965 24.38 0.00 71.59
09/07/22 0.0135 0.00104 0.0104 0.01040 <0.00500 C4 <0.00100 0.338 J 1.140 25.03 0.00 70.94
Not Sampled
Not Sampled
Not Sampled
7 of 7
TABLE 1
GROUNDWATER ANALYTICAL AND GROUNDWATER ELEVATION DATA SUMMARY
WESTERN TRANSMISSION
150 NORTH CARBONVILLE ROAD
PRICE, UTAH
SAMPLE ETHYL-NAPH-
LOCATION DATE BENZENE TOLUENE BENZENE XYLENES THALENE MTBE TPH-GRO TPH-DRO DTW FPT WTE
TOC (ft.)MM/DD/YY (mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(feet)(feet)(feet)
Initial Screening Levels 0.005 1.0 0.7 10 0.7 0.2 1.0 1.0
RBCA Tier 1 Levels 0.3 3.0 4.0 10 0.7 0.2 10 10
MW-19 03/06/23 0.00271 <0.00100 0.00239 0.00288 J <0.00500 <0.00100 0.244 B 0.701 24.37 0.00 71.60
Cont.01/22/24 24.35 0.00 71.62
91.28 06/27/24 23.71 0.00 67.57
09/17/24 24.29 0.00 66.99
MW-20 01/23/24 0.00482 0.00296 0.00117 0.00389 <0.00500 <0.00100 0.0982 J 0.147 B 25.02 0.00 79.81
104.83 06/28/24 0.000570 J <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 J4 <0.100 0.199 25.13 0.00 74.87
100.00 09/17/24 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 0.157 25.08 0.00 74.92
MW-21 01/23/24 0.00250 0.00199 0.000945 J 0.00225 J <0.00500 <0.00100 0.0653 J 0.258 B 22.71 0.00 79.73
102.44 06/27/24 22.82 0.00 74.86
97.68 09/17/24 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 0.0520 J 2.360 22.75 0.00 74.93
MW-22 01/23/24 <0.00100 <0.00100 <0.00100 0.000294 J <0.00500 <0.00100 <0.100 1.520 22.52 0.00 79.80
102.32 06/27/24 22.64 0.00 74.85
97.49 09/17/24 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 1.320 22.58 0.00 74.91
MW-23 01/23/24 0.000111 J <0.00100 <0.00100 0.000286 J <0.00500 <0.00100 <0.100 2.160 B 15.68 0.00 79.69
95.37 06/27/24 15.78 0.00 74.83
90.61 09/17/24 <0.00100 0.000328 J <0.00100 <0.00300 <0.00500 <0.00100 <0.100 1.410 15.73 0.00 74.88
MW-24 01/23/24 0.000458 J <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 0.0777 B,J 17.09 0.00 77.89
94.98 06/28/24 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 J4 <0.100 0.0290 J 17.09 0.00 73.18
90.27 09/17/24 <0.00100 <0.00100 <0.00100 <0.00300 <0.00500 <0.00100 <0.100 0.0787 J 17.12 0.00 73.15
Notes:
Jlo = Estimated value. Result may be biased low.* = Field Duplicate NS = Not Sampled mg/L = Milligrams per Liter
Jhi = Estimated value. Result may be biased high.NA = Not Applicable NM = Not Measured FPT = Free Product Thickness
Bold values indicate an exceedence of the Tier I Screening Level in the on-site wells M = Micro-extraction used for TPH-DRO
Red values indicate an exceedence of the Initial Screening Levels in the off-site wells X = Hexane used for extraction
J = Estimated value. Results may be biased low. Surrogate recovery below limits.RBCA = Risk Based Corrective Action
UJ = Analyte not detected. Spike or surrogate recovery below limits.F = No dual column confirmation
R-06 = To protect the integerty of the insturment, the sample required dilution due to the presence of high levels of non-target analytes resulting in elevated reporting limit
B = The same analyte is found in the associated blank
J4 = The associated batch QC was outside the established quality control range for accuracy.
Q = Sample was prepared and/or analyzed past the holding time as defined in the method. Concentrations should be considered minimum values.
J3 = The associated batch QC was outside the established quality control range for precision
Not Sampled
Not Sampled
Not Sampled
Not Sampled
Data is likely to show a low bias concerning the result
Not Sampled
C4 = The reported concentration is an estimate. The continuing calibration standard associated with this data responded low.
Not Sampled
APPENDIX A
L ABORATORY ANALYTICAL REPORT
ANALYTICAL REPORT
October 03, 2024
One Atlas
Sample Delivery Group:L1779201
Samples Received:09/18/2024
Project Number:
Description:Western Transmission
Report To:Jim Coletta
1775 South 4130 West, Ste A
Salt Lake City, UT 84104
Entire Report Reviewed By:
October 03, 2024
[Preliminary Report]
Daphne Richards
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be
reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace
Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and
ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided,
and as the samples are received.
Pace Analytical National
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 1 of 31
October 04, 2024
Daphne Richards
Project Manager
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 1 of 31
TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 6
Sr: Sample Results 7
MW-3 L1779201-01 7
MW-6 L1779201-02 8
MW-7 L1779201-03 9
MW-8 L1779201-04 10
MW-13 L1779201-05 11
MW-15 L1779201-06 12
MW-17 L1779201-07 13
MW-18 L1779201-08 14
MW-20 L1779201-09 15
MW-21 L1779201-10 16
MW-22 L1779201-11 17
MW-23 L1779201-12 18
MW-24 L1779201-13 19
FIELD BLANK L1779201-14 20
TRIP BLANK L1779201-15 21
Qc: Quality Control Summary 22
Volatile Organic Compounds (GC) by Method 8015D/GRO 22
Volatile Organic Compounds (GC/MS) by Method 8260B 25
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 27
Gl: Glossary of Terms 28
Al: Accreditations & Locations 29
Sc: Sample Chain of Custody 30
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 2 of 31
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 2 of 31
SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-3 L1779201-01 GW Olaf Questereit 09/17/24 10:30 09/18/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2367569 1 09/23/24 06:16 09/23/24 06:16 NCD Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2367256 1 09/22/24 04:06 09/22/24 04:06 JHH Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2370976 1 09/28/24 08:34 09/28/24 23:41 MAA Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-6 L1779201-02 GW Olaf Questereit 09/17/24 10:45 09/18/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2367569 1 09/23/24 06:37 09/23/24 06:37 NCD Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2367256 1 09/22/24 04:24 09/22/24 04:24 JHH Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2370976 1 09/28/24 08:34 09/29/24 00:01 MAA Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-7 L1779201-03 GW Olaf Questereit 09/17/24 11:00 09/18/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2369076 1 09/25/24 03:19 09/25/24 03:19 ACG Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2367256 1 09/22/24 04:43 09/22/24 04:43 JHH Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2370976 1 09/28/24 08:34 09/29/24 00:23 MAA Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-8 L1779201-04 GW Olaf Questereit 09/17/24 08:30 09/18/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2367569 1 09/23/24 07:19 09/23/24 07:19 NCD Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2367256 100 09/22/24 08:51 09/22/24 08:51 JHH Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2370976 1 09/28/24 08:34 09/29/24 00:44 MAA Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-13 L1779201-05 GW Olaf Questereit 09/17/24 11:15 09/18/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2367569 1 09/23/24 07:40 09/23/24 07:40 NCD Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2367256 1 09/22/24 05:02 09/22/24 05:02 JHH Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2370976 1 09/28/24 08:34 09/29/24 01:05 MAA Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-15 L1779201-06 GW Olaf Questereit 09/17/24 08:45 09/18/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2367569 1 09/23/24 08:02 09/23/24 08:02 NCD Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2367256 1 09/22/24 05:22 09/22/24 05:22 JHH Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2370976 1 09/28/24 08:34 09/29/24 01:26 MAA Mt. Juliet, TN
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-17 L1779201-07 GW Olaf Questereit 09/17/24 08:15 09/18/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2369076 1 09/25/24 03:40 09/25/24 03:40 ACG Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2367256 1 09/22/24 05:41 09/22/24 05:41 JHH Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2370424 1 09/26/24 20:06 09/26/24 20:06 ADM Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2370976 1 09/28/24 08:34 10/01/24 12:56 DMG Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-18 L1779201-08 GW Olaf Questereit 09/17/24 08:00 09/18/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2369076 1 09/25/24 04:01 09/25/24 04:01 ACG Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2367256 1 09/22/24 06:00 09/22/24 06:00 JHH Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2370976 1 09/28/24 08:34 10/02/24 22:37 MAA Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-20 L1779201-09 GW Olaf Questereit 09/17/24 10:15 09/18/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2367569 1 09/23/24 09:05 09/23/24 09:05 NCD Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2367256 1 09/22/24 06:19 09/22/24 06:19 JHH Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2370976 1 09/28/24 08:34 09/29/24 02:30 MAA Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-21 L1779201-10 GW Olaf Questereit 09/17/24 10:00 09/18/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2367572 1 09/23/24 01:57 09/23/24 01:57 DWR Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2367256 1 09/22/24 06:38 09/22/24 06:38 JHH Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2370976 1 09/28/24 08:34 09/29/24 02:52 MAA Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-22 L1779201-11 GW Olaf Questereit 09/17/24 09:45 09/18/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2367572 1 09/23/24 02:18 09/23/24 02:18 DWR Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2367256 1 09/22/24 06:57 09/22/24 06:57 JHH Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2370976 1 09/28/24 08:34 09/29/24 03:13 MAA Mt. Juliet, TN
Collected by Collected date/time Received date/time
MW-23 L1779201-12 GW Olaf Questereit 09/17/24 09:30 09/18/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2367572 1 09/23/24 02:40 09/23/24 02:40 DWR Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2367256 1 09/22/24 07:16 09/22/24 07:16 JHH Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2370976 1 09/28/24 08:34 09/29/24 03:34 MAA Mt. Juliet, TN
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-24 L1779201-13 GW Olaf Questereit 09/17/24 09:00 09/18/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2367572 1 09/23/24 03:01 09/23/24 03:01 DWR Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2367256 1 09/22/24 07:35 09/22/24 07:35 JHH Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2370976 1 09/28/24 08:34 09/29/24 03:55 CLG Mt. Juliet, TN
Collected by Collected date/time Received date/time
FIELD BLANK L1779201-14 GW Olaf Questereit 09/17/24 09:15 09/18/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC) by Method 8015D/GRO WG2367572 1 09/23/24 00:46 09/23/24 00:46 DWR Mt. Juliet, TN
Volatile Organic Compounds (GC/MS) by Method 8260B WG2367256 1 09/22/24 02:50 09/22/24 02:50 JHH Mt. Juliet, TN
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2370976 1 09/28/24 08:34 09/29/24 04:17 CLG Mt. Juliet, TN
Collected by Collected date/time Received date/time
TRIP BLANK L1779201-15 GW Olaf Questereit 09/17/24 00:00 09/18/24 08:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (GC/MS) by Method 8260B WG2367256 1 09/22/24 03:09 09/22/24 03:09 JHH Mt. Juliet, TN
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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CASE NARRATIVE
All sample aliquots were received at the correct temperature, in the proper containers, with the
appropriate preservatives, and within method specified holding times, unless qualified or notated within
the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples
have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control
are within established criteria except where addressed in this case narrative, a non-conformance form
or properly qualified within the sample results. By my digital signature below, I affirm to the best of my
knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the
quality of the data have been identified by the laboratory, and no information or data have been
knowingly withheld that would affect the quality of the data.
[Preliminary Report]
Daphne Richards
Project Manager
Sample Delivery Group (SDG) Narrative
pH outside of method requirement.
Lab Sample ID Project Sample ID Method
L1779201-01 MW-3 3511/8015
L1779201-02 MW-6 3511/8015
L1779201-03 MW-7 3511/8015
L1779201-07 MW-17 3511/8015
L1779201-08 MW-18 3511/8015
L1779201-10 MW-21 3511/8015
L1779201-12 MW-23 3511/8015
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 6 of 31
Daphne Richards
Project Manager
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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SAMPLE RESULTS - 01
L1779201
MW-3
Collected date/time: 09/17/24 10:30
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) Low Fraction 71.9 B J 31.4 100 1 09/23/2024 06:16 WG2367569
(S)
a,a,a-Trifluorotoluene(FID)83.1 78.0-120 09/23/2024 06:16 WG2367569
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene U 0.0941 1.00 1 09/22/2024 04:06 WG2367256
Toluene U 0.278 1.00 1 09/22/2024 04:06 WG2367256
Ethylbenzene U 0.137 1.00 1 09/22/2024 04:06 WG2367256
Total Xylenes U 0.174 3.00 1 09/22/2024 04:06 WG2367256
Methyl tert-butyl ether U 0.101 1.00 1 09/22/2024 04:06 WG2367256
Naphthalene U 1.00 5.00 1 09/22/2024 04:06 WG2367256
(S) Toluene-d8 95.1 80.0-120 09/22/2024 04:06 WG2367256
(S) 4-Bromofluorobenzene 110 77.0-126 09/22/2024 04:06 WG2367256
(S) 1,2-Dichloroethane-d4 101 70.0-130 09/22/2024 04:06 WG2367256
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) High Fraction 4240 24.7 100 1 09/28/2024 23:41 WG2370976
(S) o-Terphenyl 111 52.0-156 09/28/2024 23:41 WG2370976
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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SAMPLE RESULTS - 02
L1779201
MW-6
Collected date/time: 09/17/24 10:45
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) Low Fraction 4500 31.4 100 1 09/23/2024 06:37 WG2367569
(S)
a,a,a-Trifluorotoluene(FID)80.8 78.0-120 09/23/2024 06:37 WG2367569
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene 2.53 0.0941 1.00 1 09/22/2024 04:24 WG2367256
Toluene U 0.278 1.00 1 09/22/2024 04:24 WG2367256
Ethylbenzene 27.2 0.137 1.00 1 09/22/2024 04:24 WG2367256
Total Xylenes 1.36 J 0.174 3.00 1 09/22/2024 04:24 WG2367256
Methyl tert-butyl ether U 0.101 1.00 1 09/22/2024 04:24 WG2367256
Naphthalene 4.58 J 1.00 5.00 1 09/22/2024 04:24 WG2367256
(S) Toluene-d8 88.6 80.0-120 09/22/2024 04:24 WG2367256
(S) 4-Bromofluorobenzene 95.2 77.0-126 09/22/2024 04:24 WG2367256
(S) 1,2-Dichloroethane-d4 103 70.0-130 09/22/2024 04:24 WG2367256
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) High Fraction 2850 24.7 100 1 09/29/2024 00:01 WG2370976
(S) o-Terphenyl 91.1 52.0-156 09/29/2024 00:01 WG2370976
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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SAMPLE RESULTS - 03
L1779201
MW-7
Collected date/time: 09/17/24 11:00
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) Low Fraction 116 B 31.4 100 1 09/25/2024 03:19 WG2369076
(S)
a,a,a-Trifluorotoluene(FID)93.2 78.0-120 09/25/2024 03:19 WG2369076
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene U 0.0941 1.00 1 09/22/2024 04:43 WG2367256
Toluene 0.344 J 0.278 1.00 1 09/22/2024 04:43 WG2367256
Ethylbenzene U 0.137 1.00 1 09/22/2024 04:43 WG2367256
Total Xylenes 0.309 J 0.174 3.00 1 09/22/2024 04:43 WG2367256
Methyl tert-butyl ether U 0.101 1.00 1 09/22/2024 04:43 WG2367256
Naphthalene 1.32 J 1.00 5.00 1 09/22/2024 04:43 WG2367256
(S) Toluene-d8 92.1 80.0-120 09/22/2024 04:43 WG2367256
(S) 4-Bromofluorobenzene 101 77.0-126 09/22/2024 04:43 WG2367256
(S) 1,2-Dichloroethane-d4 103 70.0-130 09/22/2024 04:43 WG2367256
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) High Fraction 3040 24.7 100 1 09/29/2024 00:23 WG2370976
(S) o-Terphenyl 141 52.0-156 09/29/2024 00:23 WG2370976
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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SAMPLE RESULTS - 04
L1779201
MW-8
Collected date/time: 09/17/24 08:30
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) Low Fraction 7520 31.4 100 1 09/23/2024 07:19 WG2367569
(S)
a,a,a-Trifluorotoluene(FID)106 78.0-120 09/23/2024 07:19 WG2367569
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene 2140 9.41 100 100 09/22/2024 08:51 WG2367256
Toluene 35.8 J 27.8 100 100 09/22/2024 08:51 WG2367256
Ethylbenzene 1180 13.7 100 100 09/22/2024 08:51 WG2367256
Total Xylenes 313 17.4 300 100 09/22/2024 08:51 WG2367256
Methyl tert-butyl ether U 10.1 100 100 09/22/2024 08:51 WG2367256
Naphthalene U 100 500 100 09/22/2024 08:51 WG2367256
(S) Toluene-d8 96.9 80.0-120 09/22/2024 08:51 WG2367256
(S) 4-Bromofluorobenzene 101 77.0-126 09/22/2024 08:51 WG2367256
(S) 1,2-Dichloroethane-d4 103 70.0-130 09/22/2024 08:51 WG2367256
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) High Fraction 6340 24.7 100 1 09/29/2024 00:44 WG2370976
(S) o-Terphenyl 93.7 52.0-156 09/29/2024 00:44 WG2370976
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 10 of 31
SAMPLE RESULTS - 05
L1779201
MW-13
Collected date/time: 09/17/24 11:15
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) Low Fraction 1080 31.4 100 1 09/23/2024 07:40 WG2367569
(S)
a,a,a-Trifluorotoluene(FID)90.0 78.0-120 09/23/2024 07:40 WG2367569
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene 4.69 0.0941 1.00 1 09/22/2024 05:02 WG2367256
Toluene 0.663 J 0.278 1.00 1 09/22/2024 05:02 WG2367256
Ethylbenzene 29.5 0.137 1.00 1 09/22/2024 05:02 WG2367256
Total Xylenes 5.90 0.174 3.00 1 09/22/2024 05:02 WG2367256
Methyl tert-butyl ether U 0.101 1.00 1 09/22/2024 05:02 WG2367256
Naphthalene 1.11 J 1.00 5.00 1 09/22/2024 05:02 WG2367256
(S) Toluene-d8 90.0 80.0-120 09/22/2024 05:02 WG2367256
(S) 4-Bromofluorobenzene 95.8 77.0-126 09/22/2024 05:02 WG2367256
(S) 1,2-Dichloroethane-d4 109 70.0-130 09/22/2024 05:02 WG2367256
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) High Fraction 1610 24.7 100 1 09/29/2024 01:05 WG2370976
(S) o-Terphenyl 98.9 52.0-156 09/29/2024 01:05 WG2370976
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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One Atlas L1779201 10/04/24 08:16 11 of 31
SAMPLE RESULTS - 06
L1779201
MW-15
Collected date/time: 09/17/24 08:45
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) Low Fraction 1410 31.4 100 1 09/23/2024 08:02 WG2367569
(S)
a,a,a-Trifluorotoluene(FID)89.3 78.0-120 09/23/2024 08:02 WG2367569
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene 69.0 0.0941 1.00 1 09/22/2024 05:22 WG2367256
Toluene 10.7 0.278 1.00 1 09/22/2024 05:22 WG2367256
Ethylbenzene 35.0 0.137 1.00 1 09/22/2024 05:22 WG2367256
Total Xylenes 149 0.174 3.00 1 09/22/2024 05:22 WG2367256
Methyl tert-butyl ether U 0.101 1.00 1 09/22/2024 05:22 WG2367256
Naphthalene 1.05 J 1.00 5.00 1 09/22/2024 05:22 WG2367256
(S) Toluene-d8 87.3 80.0-120 09/22/2024 05:22 WG2367256
(S) 4-Bromofluorobenzene 94.4 77.0-126 09/22/2024 05:22 WG2367256
(S) 1,2-Dichloroethane-d4 103 70.0-130 09/22/2024 05:22 WG2367256
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) High Fraction 1180 24.7 100 1 09/29/2024 01:26 WG2370976
(S) o-Terphenyl 94.2 52.0-156 09/29/2024 01:26 WG2370976
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 12 of 31
SAMPLE RESULTS - 07
L1779201
MW-17
Collected date/time: 09/17/24 08:15
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) Low Fraction 196 B 31.4 100 1 09/25/2024 03:40 WG2369076
(S)
a,a,a-Trifluorotoluene(FID)102 78.0-120 09/25/2024 03:40 WG2369076
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene 0.246 J 0.0941 1.00 1 09/26/2024 20:06 WG2370424
Toluene U 0.278 1.00 1 09/22/2024 05:41 WG2367256
Ethylbenzene 0.557 J 0.137 1.00 1 09/26/2024 20:06 WG2370424
Total Xylenes 0.765 J 0.174 3.00 1 09/26/2024 20:06 WG2370424
Methyl tert-butyl ether U 0.101 1.00 1 09/22/2024 05:41 WG2367256
Naphthalene U 1.00 5.00 1 09/22/2024 05:41 WG2367256
(S) Toluene-d8 92.2 80.0-120 09/22/2024 05:41 WG2367256
(S) Toluene-d8 95.6 80.0-120 09/26/2024 20:06 WG2370424
(S) 4-Bromofluorobenzene 95.4 77.0-126 09/22/2024 05:41 WG2367256
(S) 4-Bromofluorobenzene 90.6 77.0-126 09/26/2024 20:06 WG2370424
(S) 1,2-Dichloroethane-d4 98.1 70.0-130 09/22/2024 05:41 WG2367256
(S) 1,2-Dichloroethane-d4 89.1 70.0-130 09/26/2024 20:06 WG2370424
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) High Fraction 211 24.7 100 1 10/01/2024 12:56 WG2370976
(S) o-Terphenyl 92.6 52.0-156 10/01/2024 12:56 WG2370976
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 13 of 31
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 13 of 31
SAMPLE RESULTS - 08
L1779201
MW-18
Collected date/time: 09/17/24 08:00
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) Low Fraction 38.5 B J 31.4 100 1 09/25/2024 04:01 WG2369076
(S)
a,a,a-Trifluorotoluene(FID)96.1 78.0-120 09/25/2024 04:01 WG2369076
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene U 0.0941 1.00 1 09/22/2024 06:00 WG2367256
Toluene U 0.278 1.00 1 09/22/2024 06:00 WG2367256
Ethylbenzene U 0.137 1.00 1 09/22/2024 06:00 WG2367256
Total Xylenes U 0.174 3.00 1 09/22/2024 06:00 WG2367256
Methyl tert-butyl ether U 0.101 1.00 1 09/22/2024 06:00 WG2367256
Naphthalene U 1.00 5.00 1 09/22/2024 06:00 WG2367256
(S) Toluene-d8 95.4 80.0-120 09/22/2024 06:00 WG2367256
(S) 4-Bromofluorobenzene 101 77.0-126 09/22/2024 06:00 WG2367256
(S) 1,2-Dichloroethane-d4 100 70.0-130 09/22/2024 06:00 WG2367256
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) High Fraction 152 24.7 100 1 10/02/2024 22:37 WG2370976
(S) o-Terphenyl 93.7 52.0-156 10/02/2024 22:37 WG2370976
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 14 of 31
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 14 of 31
SAMPLE RESULTS - 09
L1779201
MW-20
Collected date/time: 09/17/24 10:15
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) Low Fraction U 31.4 100 1 09/23/2024 09:05 WG2367569
(S)
a,a,a-Trifluorotoluene(FID)101 78.0-120 09/23/2024 09:05 WG2367569
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene U 0.0941 1.00 1 09/22/2024 06:19 WG2367256
Toluene U 0.278 1.00 1 09/22/2024 06:19 WG2367256
Ethylbenzene U 0.137 1.00 1 09/22/2024 06:19 WG2367256
Total Xylenes U 0.174 3.00 1 09/22/2024 06:19 WG2367256
Methyl tert-butyl ether U 0.101 1.00 1 09/22/2024 06:19 WG2367256
Naphthalene U 1.00 5.00 1 09/22/2024 06:19 WG2367256
(S) Toluene-d8 96.4 80.0-120 09/22/2024 06:19 WG2367256
(S) 4-Bromofluorobenzene 101 77.0-126 09/22/2024 06:19 WG2367256
(S) 1,2-Dichloroethane-d4 103 70.0-130 09/22/2024 06:19 WG2367256
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) High Fraction 157 24.7 100 1 09/29/2024 02:30 WG2370976
(S) o-Terphenyl 89.5 52.0-156 09/29/2024 02:30 WG2370976
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 15 of 31
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 15 of 31
SAMPLE RESULTS - 10
L1779201
MW-21
Collected date/time: 09/17/24 10:00
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) Low Fraction 52.0 J 31.4 100 1 09/23/2024 01:57 WG2367572
(S)
a,a,a-Trifluorotoluene(FID)100 78.0-120 09/23/2024 01:57 WG2367572
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene U 0.0941 1.00 1 09/22/2024 06:38 WG2367256
Toluene U 0.278 1.00 1 09/22/2024 06:38 WG2367256
Ethylbenzene U 0.137 1.00 1 09/22/2024 06:38 WG2367256
Total Xylenes U 0.174 3.00 1 09/22/2024 06:38 WG2367256
Methyl tert-butyl ether U 0.101 1.00 1 09/22/2024 06:38 WG2367256
Naphthalene U 1.00 5.00 1 09/22/2024 06:38 WG2367256
(S) Toluene-d8 93.2 80.0-120 09/22/2024 06:38 WG2367256
(S) 4-Bromofluorobenzene 98.1 77.0-126 09/22/2024 06:38 WG2367256
(S) 1,2-Dichloroethane-d4 104 70.0-130 09/22/2024 06:38 WG2367256
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) High Fraction 2360 24.7 100 1 09/29/2024 02:52 WG2370976
(S) o-Terphenyl 125 52.0-156 09/29/2024 02:52 WG2370976
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 16 of 31
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 16 of 31
SAMPLE RESULTS - 11
L1779201
MW-22
Collected date/time: 09/17/24 09:45
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) Low Fraction U 31.4 100 1 09/23/2024 02:18 WG2367572
(S)
a,a,a-Trifluorotoluene(FID)100 78.0-120 09/23/2024 02:18 WG2367572
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene U 0.0941 1.00 1 09/22/2024 06:57 WG2367256
Toluene U 0.278 1.00 1 09/22/2024 06:57 WG2367256
Ethylbenzene U 0.137 1.00 1 09/22/2024 06:57 WG2367256
Total Xylenes U 0.174 3.00 1 09/22/2024 06:57 WG2367256
Methyl tert-butyl ether U 0.101 1.00 1 09/22/2024 06:57 WG2367256
Naphthalene U 1.00 5.00 1 09/22/2024 06:57 WG2367256
(S) Toluene-d8 96.8 80.0-120 09/22/2024 06:57 WG2367256
(S) 4-Bromofluorobenzene 97.0 77.0-126 09/22/2024 06:57 WG2367256
(S) 1,2-Dichloroethane-d4 106 70.0-130 09/22/2024 06:57 WG2367256
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) High Fraction 1320 24.7 100 1 09/29/2024 03:13 WG2370976
(S) o-Terphenyl 92.6 52.0-156 09/29/2024 03:13 WG2370976
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 17 of 31
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 17 of 31
SAMPLE RESULTS - 12
L1779201
MW-23
Collected date/time: 09/17/24 09:30
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) Low Fraction U 31.4 100 1 09/23/2024 02:40 WG2367572
(S)
a,a,a-Trifluorotoluene(FID)100 78.0-120 09/23/2024 02:40 WG2367572
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene U 0.0941 1.00 1 09/22/2024 07:16 WG2367256
Toluene 0.328 J 0.278 1.00 1 09/22/2024 07:16 WG2367256
Ethylbenzene U 0.137 1.00 1 09/22/2024 07:16 WG2367256
Total Xylenes U 0.174 3.00 1 09/22/2024 07:16 WG2367256
Methyl tert-butyl ether U 0.101 1.00 1 09/22/2024 07:16 WG2367256
Naphthalene U 1.00 5.00 1 09/22/2024 07:16 WG2367256
(S) Toluene-d8 93.4 80.0-120 09/22/2024 07:16 WG2367256
(S) 4-Bromofluorobenzene 101 77.0-126 09/22/2024 07:16 WG2367256
(S) 1,2-Dichloroethane-d4 103 70.0-130 09/22/2024 07:16 WG2367256
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) High Fraction 1410 24.7 100 1 09/29/2024 03:34 WG2370976
(S) o-Terphenyl 103 52.0-156 09/29/2024 03:34 WG2370976
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 18 of 31
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 18 of 31
SAMPLE RESULTS - 13
L1779201
MW-24
Collected date/time: 09/17/24 09:00
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) Low Fraction U 31.4 100 1 09/23/2024 03:01 WG2367572
(S)
a,a,a-Trifluorotoluene(FID)100 78.0-120 09/23/2024 03:01 WG2367572
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene U 0.0941 1.00 1 09/22/2024 07:35 WG2367256
Toluene U 0.278 1.00 1 09/22/2024 07:35 WG2367256
Ethylbenzene U 0.137 1.00 1 09/22/2024 07:35 WG2367256
Total Xylenes U 0.174 3.00 1 09/22/2024 07:35 WG2367256
Methyl tert-butyl ether U 0.101 1.00 1 09/22/2024 07:35 WG2367256
Naphthalene U 1.00 5.00 1 09/22/2024 07:35 WG2367256
(S) Toluene-d8 95.2 80.0-120 09/22/2024 07:35 WG2367256
(S) 4-Bromofluorobenzene 103 77.0-126 09/22/2024 07:35 WG2367256
(S) 1,2-Dichloroethane-d4 106 70.0-130 09/22/2024 07:35 WG2367256
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) High Fraction 78.7 J 24.7 100 1 09/29/2024 03:55 WG2370976
(S) o-Terphenyl 94.7 52.0-156 09/29/2024 03:55 WG2370976
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 19 of 31
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 19 of 31
SAMPLE RESULTS - 14
L1779201
FIELD BLANK
Collected date/time: 09/17/24 09:15
Volatile Organic Compounds (GC) by Method 8015D/GRO
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) Low Fraction U 31.4 100 1 09/23/2024 00:46 WG2367572
(S)
a,a,a-Trifluorotoluene(FID)98.6 78.0-120 09/23/2024 00:46 WG2367572
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene U 0.0941 1.00 1 09/22/2024 02:50 WG2367256
Toluene U 0.278 1.00 1 09/22/2024 02:50 WG2367256
Ethylbenzene U 0.137 1.00 1 09/22/2024 02:50 WG2367256
Total Xylenes U 0.174 3.00 1 09/22/2024 02:50 WG2367256
Methyl tert-butyl ether U 0.101 1.00 1 09/22/2024 02:50 WG2367256
Naphthalene U 1.00 5.00 1 09/22/2024 02:50 WG2367256
(S) Toluene-d8 92.7 80.0-120 09/22/2024 02:50 WG2367256
(S) 4-Bromofluorobenzene 102 77.0-126 09/22/2024 02:50 WG2367256
(S) 1,2-Dichloroethane-d4 105 70.0-130 09/22/2024 02:50 WG2367256
Semi-Volatile Organic Compounds (GC) by Method 3511/8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPH (GC/FID) High Fraction 42.6 J 24.7 100 1 09/29/2024 04:17 WG2370976
(S) o-Terphenyl 90.5 52.0-156 09/29/2024 04:17 WG2370976
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 20 of 31
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 20 of 31
SAMPLE RESULTS - 15
L1779201
TRIP BLANK
Collected date/time: 09/17/24 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Benzene U 0.0941 1.00 1 09/22/2024 03:09 WG2367256
Toluene U 0.278 1.00 1 09/22/2024 03:09 WG2367256
Ethylbenzene U 0.137 1.00 1 09/22/2024 03:09 WG2367256
Total Xylenes U 0.174 3.00 1 09/22/2024 03:09 WG2367256
Methyl tert-butyl ether U 0.101 1.00 1 09/22/2024 03:09 WG2367256
Naphthalene U 1.00 5.00 1 09/22/2024 03:09 WG2367256
(S) Toluene-d8 93.3 80.0-120 09/22/2024 03:09 WG2367256
(S) 4-Bromofluorobenzene 103 77.0-126 09/22/2024 03:09 WG2367256
(S) 1,2-Dichloroethane-d4 105 70.0-130 09/22/2024 03:09 WG2367256
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 21 of 31
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 21 of 31
QUALITY CONTROL SUMMARYWG2367569
Volatile Organic Compounds (GC) by Method 8015D/GRO L1779201-01,02,04,05,06,09
Method Blank (MB)
(MB) R4123796-4 09/23/24 00:33
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
TPH (GC/FID) Low Fraction 41.2 J 31.4 100
(S)
a,a,a-Trifluorotoluene(FID)101 78.0-120
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4123796-2 09/22/24 22:26 • (LCSD) R4123796-3 09/22/24 23:37
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
TPH (GC/FID) Low Fraction 5000 4400 4200 88.0 84.0 72.0-127 4.65 20
(S)
a,a,a-Trifluorotoluene(FID) 105 107 78.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 22 of 31
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 22 of 31
QUALITY CONTROL SUMMARYWG2367572
Volatile Organic Compounds (GC) by Method 8015D/GRO L1779201-10,11,12,13,14
Method Blank (MB)
(MB) R4124077-2 09/22/24 23:25
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
TPH (GC/FID) Low Fraction U 31.4 100
(S)
a,a,a-Trifluorotoluene(FID)102 78.0-120
Laboratory Control Sample (LCS)
(LCS) R4124077-1 09/22/24 22:28
Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier
Analyte ug/l ug/l %%
TPH (GC/FID) Low Fraction 5000 5120 102 72.0-127
(S)
a,a,a-Trifluorotoluene(FID) 105 78.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 23 of 31
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 23 of 31
QUALITY CONTROL SUMMARYWG2369076
Volatile Organic Compounds (GC) by Method 8015D/GRO L1779201-03,07,08
Method Blank (MB)
(MB) R4124235-4 09/25/24 02:01
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
TPH (GC/FID) Low Fraction 31.4 J 31.4 100
(S)
a,a,a-Trifluorotoluene(FID)106 78.0-120
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4124235-2 09/25/24 00:05 • (LCSD) R4124235-3 09/25/24 00:38
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
TPH (GC/FID) Low Fraction 5000 4650 4870 93.0 97.4 72.0-127 4.62 20
(S)
a,a,a-Trifluorotoluene(FID) 100 110 78.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 24 of 31
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 24 of 31
QUALITY CONTROL SUMMARYWG2367256
Volatile Organic Compounds (GC/MS) by Method 8260B L1779201-01,02,03,04,05,06,07,08,09,10,11,12,13,14,15
Method Blank (MB)
(MB) R4124671-3 09/22/24 02:31
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Benzene U 0.0941 1.00
Toluene U 0.278 1.00
Ethylbenzene U 0.137 1.00
Total Xylenes U 0.174 3.00
Methyl tert-butyl ether U 0.101 1.00
Naphthalene U 1.00 5.00
(S) Toluene-d8 93.3 80.0-120
(S) 4-Bromofluorobenzene 103 77.0-126
(S) 1,2-Dichloroethane-d4 105 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4124671-1 09/22/24 01:34 • (LCSD) R4124671-2 09/22/24 01:53
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
Benzene 5.00 5.26 5.30 105 106 70.0-123 0.758 20
Toluene 5.00 4.75 4.86 95.0 97.2 79.0-120 2.29 20
Ethylbenzene 5.00 4.94 5.04 98.8 101 79.0-123 2.00 20
Total Xylenes 15.0 14.5 14.5 96.7 96.7 79.0-123 0.000 20
Methyl tert-butyl ether 5.00 4.89 5.10 97.8 102 68.0-125 4.20 20
Naphthalene 5.00 5.50 5.17 110 103 54.0-135 6.19 20
(S) Toluene-d8 92.9 93.9 80.0-120
(S) 4-Bromofluorobenzene 101 101 77.0-126
(S) 1,2-Dichloroethane-d4 101 99.4 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/03/24 19:05 25 of 31
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
One Atlas L1779201 10/04/24 08:16 25 of 31
QUALITY CONTROL SUMMARYWG2370424
Volatile Organic Compounds (GC/MS) by Method 8260B L1779201-07
Method Blank (MB)
(MB) R4125436-3 09/26/24 11:32
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Benzene U 0.0941 1.00
Ethylbenzene U 0.137 1.00
Total Xylenes U 0.174 3.00
(S) Toluene-d8 98.3 80.0-120
(S) 4-Bromofluorobenzene 96.4 77.0-126
(S) 1,2-Dichloroethane-d4 97.2 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4125436-1 09/26/24 10:29 • (LCSD) R4125436-2 09/26/24 10:50
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
Benzene 5.00 4.79 5.17 95.8 103 70.0-123 7.63 20
Ethylbenzene 5.00 4.76 5.26 95.2 105 79.0-123 9.98 20
Total Xylenes 15.0 14.4 15.6 96.0 104 79.0-123 8.00 20
(S) Toluene-d8 96.4 97.7 80.0-120
(S) 4-Bromofluorobenzene 94.5 96.4 77.0-126
(S) 1,2-Dichloroethane-d4 97.8 97.0 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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QUALITY CONTROL SUMMARYWG2370976
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 L1779201-01,02,03,04,05,06,07,08,09,10,11,12,13,14
Method Blank (MB)
(MB) R4126170-1 09/28/24 21:39
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
TPH (GC/FID) High Fraction U 24.7 100
(S) o-Terphenyl 86.0 52.0-156
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R4126170-2 09/28/24 22:00 • (LCSD) R4126170-3 09/28/24 22:20
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
TPH (GC/FID) High Fraction 1500 1530 1630 102 109 50.0-150 6.33 20
(S) o-Terphenyl 86.0 83.0 52.0-156
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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GLOSSARY OF TERMS
Guide to Reading and Understanding Your Laboratory Report
The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not
intended as a comprehensive explanation, and if you have additional questions please contact your project representative.
Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name,
Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and
Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.
Abbreviations and Definitions
MDL Method Detection Limit.
RDL Reported Detection Limit.
Rec.Recovery.
RPD Relative Percent Difference.
SDG Sample Delivery Group.
(S)
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and
Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be
detected in all environmental media.
U Not detected at the Reporting Limit (or MDL where applicable).
Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes
reported.
Dilution
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the
standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the
laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the
result reported has already been corrected for this factor.
Limits
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal
for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or
duplicated within these ranges.
Qualifier
This column provides a letter and/or number designation that corresponds to additional information concerning the result
reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and
potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.
Result
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was
no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL”
(Below Detectable Levels). The information in the results column should always be accompanied by either an MDL
(Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect
or report for this analyte.
Uncertainty
(Radiochemistry)Confidence level of 2 sigma.
Case Narrative (Cn)
A brief discussion about the included sample results, including a discussion of any non-conformances to protocol
observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will
be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.
Quality Control
Summary (Qc)
This section of the report includes the results of the laboratory quality control analyses required by procedure or
analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not
being performed on your samples typically, but on laboratory generated material.
Sample Chain of
Custody (Sc)
This is the document created in the field when your samples were initially collected. This is used to verify the time and
date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This
chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the
samples from the time of collection until delivery to the laboratory for analysis.
Sample Results (Sr)
This section of your report will provide the results of all testing performed on your samples. These results are provided
by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for
each sample will provide the name and method number for the analysis reported.
Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and
times of preparation and/or analysis.
Qualifier Description
B The same analyte is found in the associated blank.
J The identification of the analyte is acceptable; the reported value is an estimate.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122
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Georgia NELAP North Carolina ³41
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Kentucky ¹ ⁶KY90010 South Carolina 84004002
Kentucky ²16 South Dakota n/a
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Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵LAB0152
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ACCREDITATIONS & LOCATIONS

¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable
* Not all certifications held by the laboratory are applicable to the results reported in the attached report.
* Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical.
1 Cp
2 Tc
3 Ss
4 Cn
5 Sr
6 Qc
7 Gl
8 Al
9 Sc
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