DERR-2024-012584

718 E. Bridger Lane, Elk Ridge, Utah 84651, [phone] [e-mail]
Rockwell Solutions, Inc.
718 E Bridger Lane
Elk Ridge, UT 84651
[phone]
June 27, 2024

Brent Miller
LW Miller
1050 W 200 North
Logan, Utah

Re: Monitoring Installation and Groundwater Monitoring Report, April – June, 2024
LW Miller Truck Stop (Facility ID: 0100611, LUST ID: MPA
1050 W 200 North
Logan, Utah

Dear Mr. Miller:

As requested by the Division of Environmental Response and Remediation (DERR), Rockwell
Solutions installed a replacement monitoring well for the above-referenced release on the adjacent
Valley Metal Recycling property. Direct Push Services was employed as the drilling contractor
under the supervision of a Rockwell Solutions representative.

Five-foot soil core samples were collected continuously from the direct push boring to replace MW-
16. A portion of the soil core was put in a zip-lock baggie to allow hydrocarbons to volatilize. The
air in the zip lock baggie was then screened with a photoionization detector (PID). A soil sample
was collected from just above the apparent groundwater table and submitted for laboratory analysis
of MTBE, benzene, toluene, ethylbenzene, xylenes, naphthalene (MBTEXN), and total petroleum
hydrocarbons-gasoline range organics (TPH-GRO) using EPA Method 8260 and TPH-diesel range
organics (TPH-DRO) using EPA Method 8015.

A monitoring wells was installed in the boring to a depth of thirteen feet with ten feet of 0.010-inch
screen. The well contains a silica sand filter around the screen and a bentonite seal above the
screen. A flush grade well protector was installed at the surface. The top-of-casing elevation was
measured to the nearest 0.01 foot using a transit level. The boring log and monitoring well
construction diagram is attached.

Soil type was evaluated by field analysis of soil samples. The native soil consists of silt and silty
clay. Table 1 lists the analytical results of soil samples collected at the site, including the sample
from MW-16R. No hydrocarbons were detected in the sample.

Rockwell Solutions collected groundwater samples at the above-referenced site on May 27 and June
7, 2024. Groundwater measurements and samples were collected from monitoring wells MW-2,
MW-3, MW-4R, MW-5, MW-7, MW-10, MW-12, MW-14, MW-14R, MW-16R, MW-17, and
MW-18. The twelve wells were sampled using standard measuring, purging, and sampling
procedures.

Monitoring Well Installation and Groundwater Monitoring Report, April-June, 2024
LW Miller, Facility ID #0100611

718 E. Bridger Lane, Elk Ridge, Utah 84651, [phone] [e-mail]
Groundwater samples were collected from each monitoring well using a disposable bailer. Each
groundwater sample was immediately placed on ice and retained under chain-of-custody
documentation until relinquished to the laboratory. Samples were submitted for analysis of MTBE,
benzene, toluene, ethylbenzene, total xylenes, naphthalene (MBTEXN) and total petroleum
hydrocarbons (TPH) - gasoline range organics (GRO) using EPA Method 8260 and TPH-diesel
range organics (DRO) using EPA Method 8015. Chemtech-Ford conducted the laboratory analyses.
Laboratory reports are attached.

A summary of historical groundwater monitoring data including groundwater elevation and
laboratory analytical data is presented in Table 1 and a groundwater elevation map is presented as
Figure 1. Groundwater flow was to the south-southwest in May and June 2024.

Benzene concentrations continue to exceed Tier 1 cleanup levels in MW-3 and MW-4R. No other
constituent exceeds a Tier 1 level in MW-3 or MW-4R, or in any other monitoring well.
Concentrations exceed Initial Screening Levels (ISLs) in six other monitoring wells, including the
TPH-DRO concentration in MW-16R, the newly replaced well. Hydrocarbon concentrations appear
to be stable over the last few years of monitoring.

As requested by DERR, the next groundwater monitoring event will take place in approximately
nine months.

If you need additional information or have any questions, please contact me at [phone].

Thank you,

David S. Hansen
Certified UST Consultant CC0130
Rockwell Solutions, Inc.

cc: Eileen Brennan

MW-15
Figure 1
Approx. scale in feet
00 90
C StoreTank
Basin
Canopy
Motel
Motel
Remediation
Compound
Motel
USTs
C-Store
Canopy
LW Miller Truck Stop
1050 W 200 North
Logan, Utah
Groundwater Elevations
May-June 2024
NORTH
Monitoring Well
Destroyed Monitoring Well
(90.18)= Groundwater Elevation (ft)
= Groundwater Elevation Contour (ft)
MW-10
*(94.24)
MW-8
MW-11
MW-7
*(95.31)
MW-5
(94.86)
MW-2
(94.85)
MW-12
(95.99)
MW-14R
(93.78)
MW-18
*(93.68)
MW-17
(91.82)
MW-3
*(96.45)
MW-14
(93.52)
(*90.18)= Anomalous Reading not used in contouring
MW-4R
(95.05)
-94-
MW-13
-93-
92--
-5.-9 5
MW-16
(94.30)
-95-
-96-
MW-6
Sample Number and
Depth
Date
Collected
Benzene
(mg/kg)
Toluene
(mg/kg)
Ethyl-
benzene
(mg/kg)
Xylenes
(mg/kg)
Naph-
thalene
(mg/kg)
MTBE
(mg/kg)
TPH-
GRO
(mg/kg)
TPH-DRO
(mg/kg)
0.2 9.0 5 142 51 0.3 150 500
0.9 25.0 23 142 51 0.3 1500 5000
MW-4R, 5' 7/6/22 <0.12 <0.30 <0.30 <0.30 <0.30 <0.12 <3.04 <61
MW-14R, 5' 7/6/22 <0.12 <0.31 <0.31 <0.31 <0.31 <0.12 <3.11 <62
MW-17, 7' 7/6/22 <0.12 <0.31 <0.31 <0.31 <0.31 <0.12 <3.09 <62
MW-18, 7' 7/6/22 <0.13 <0.31 <0.31 <0.31 <0.31 <0.13 <3.15 <63
MW-16R, 6' 4/22/24 <0.01 <0.03 <0.03 <0.03 <0.03 <0.01 <0.288 <62
TPH-GRO = Total Petroleum Hydrocarbons-Gasoline Range Organics
MBTEXN and TPH-GRO analaytzed by Method 8260
TPH-DRO = Total Petroleum Hydrocarbons-Diesel Range Organics, analyzed by Method 8015
mg/kg = milligrams per kilogram
Tier 1 Screening Criteria
Table 1
Soil Sample Analytical Results
LW Miller Truck Stop (Facility ID 0100611, Release ID MPA)
1050 W 200 North, Logan, Utah
Initial Screening Level
Sample Date
TOC
(ft)
DTW
(ft)
Groundwater
Elevation (ft)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
MTBE
(mg/L)
TPH-
GRO
(mg/L)
TPH-DRO
(mg/L)
0.005 1 0.7 10 0.7 0.2 1 1
0.3 3 4 10 0.7 0.2 10 10
MW-2 5/28/2011 100.50 4.30 96.20 1.2 0.21 0.15 0.4 0.012 <0.0005 5.10 2.3
MW-2 11/12/2011 100.50 5.17 95.33 0.23 0.007 0.006 0.005 <0.001 <0.0005 0.73 0.16
MW-2 5/28/2012 100.50 5.98 94.52 0.35 0.015 0.01 0.016 <0.001 <0.0005 1.10 0.11
MW-2 10/27/2012 100.50 6.30 94.20 0.3 0.007 0.006 0.006 <0.001 <0.0005 0.91 0.33
MW-2 5/27/2013 100.50 6.12 94.38 0.62 0.019 0.015 0.022 <0.001 <0.0005 2.00 0.31
MW-2 10/11/2014 100.50 5.99 94.51 1.000 0.013 0.042 0.028 <0.01 <0.005 2.50 <0.26
MW-2 3/29/2022 100.50 4.64 95.86 0.544 <0.012 0.058 0.042 <0.012 <0.005 0.95 <1
MW-2 7/18/2022 100.50 6.06 94.44 0.141 <0.012 0.038 <0.012 <0.012 <0.005 0.179 2.7
MW-2 2/9/2023 100.50 5.66 94.84 0.374 <0.012 <0.012 0.013 <0.012 <0.005 0.584 <1
MW-2 7/15/2023 100.50 5.26 95.24 0.24 <0.012 0.031 <0.012 <0.012 <0.005 0.289 1.2
MW-2 1/27/2024 100.50 5.65 94.85 0.45 <0.012 0.048 0.058 <0.012 <0.005 0.685 2.1
MW-2 5/27/2024 100.50 5.65 94.85 0.257 <0.012 0.013 <0.012 <0.012 <0.005 0.270 <1
Initial Screening Levels
RBCA Tier 1 Screening Levels
Table 2
Groundwater Analytical Results
LW Miller Truck Stop (Facility ID 0100611, Release ID MPA)
1050 W 200 North, Logan, Utah
Page 1 of 9
Sample Date
TOC
(ft)
DTW
(ft)
Groundwater
Elevation (ft)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
MTBE
(mg/L)
TPH-
GRO
(mg/L)
TPH-DRO
(mg/L)
0.005 1 0.7 10 0.7 0.2 1 1
0.3 3 4 10 0.7 0.2 10 10
Initial Screening Levels
RBCA Tier 1 Screening Levels
Table 2
Groundwater Analytical Results
LW Miller Truck Stop (Facility ID 0100611, Release ID MPA)
1050 W 200 North, Logan, Utah
MW-3 5/28/2011 100.06 3.99 96.07 6.4 9 0.5 3.9 0.1 <0.01 48.0 4.3
MW-3 11/12/2011 100.06 5.86 94.20 4.9 4.9 0.28 2.1 0.033 <0.003 31.0 2.2
MW-3 5/28/2012 100.06 5.08 94.98 5.6 4.6 0.38 2.5 0.035 <0.005 32.0 1.9
MW-3 10/27/2012 100.06 6.00 94.06 6.9 0.87 0.54 3.4 0.044 <0.003 28.0 5.2
MW-3 5/27/2013 100.06 5.43 94.63 4.30 0.72 0.3 1.50 0.028 <0.003 17.0 2.9
MW-3 10/11/2014 100.06 5.39 94.67 7.00 0.14 0.61 3.00 0.043 <0.005 24.0 0.9
MW-3 3/29/2022 100.06 5.78 94.28 2.08 0.016 0.09 0.516 0.055 <0.005 3.88 2.2
MW-3 7/18/2022 100.06 5.88 94.18 3.09 0.017 0.016 0.676 0.077 <0.005 4.82 2.9
MW-3 2/9/2023 100.06 5.33 94.73 1.93 0.058 0.202 0.745 0.027 <0.005 4.80 2.2
MW-3 7/15/2023 100.06 5.34 94.72 2.35 0.023 0.027 0.5 0.03 <0.005 3.74 2.6
MW-3 1/27/2024 100.06 5.70 94.36 1.7 0.014 0.248 0.642 0.038 <0.005 3.71 2.2
MW-3 5/27/2024 100.06 3.61 96.45 1.91 0.015 0.329 0.812 0.067 <0.005 4.02 1.9
MW-4 5/28/2011 100.35 4.70 95.65 2 0.06 0.096 0.33 0.011 <0.001 6.10 0.62
MW-4 11/12/2011 100.35 6.44 93.91 1.4 0.036 0.061 0.12 0.002 <0.0005 4.20 0.82
MW-4 5/28/2012 100.35 6.00 94.35 0.95 0.044 0.075 0.17 0.003 <0.0005 3.10 0.14
MW-4 10/27/2012 100.35 6.61 93.74 2.2 0.019 0.12 0.042 0.002 <0.001 5.60 0.55
MW-4 5/27/2013 100.35 5.89 94.46 1 0.079 0.094 0.16 0.005 <0.001 4.10 0.66
MW-4 10/11/2014 100.35 5.94 94.41 1.3 <0.01 0.14 0.011 <0.02 <0.01 3.50 0.11
MW-4R 7/18/2022 100.23 6.33 93.90 0.26 <0.012 0.023 <0.012 <0.012 <0.005 0.283 1.4
MW-4R 2/9/2023 100.23 6.06 94.17 0.688 <0.012 0.123 <0.012 0.015 <0.005 2.24 1.6
MW-4R 7/15/2023 100.23 5.92 94.31 0.828 <0.012 0.181 <0.012 0.022 <0.005 1.79 1.7
MW-4R 1/27/2024 100.23 4.99 95.24 0.785 <0.012 0.156 <0.012 0.025 <0.005 1.87 1.4
MW-4R 5/27/2024 100.23 5.18 95.05 0.506 <0.012 0.066 <0.012 <0.012 <0.005 0.94 1.1
Monitoring well MW-4 replaced in July 2022
Page 2 of 9
Sample Date
TOC
(ft)
DTW
(ft)
Groundwater
Elevation (ft)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
MTBE
(mg/L)
TPH-
GRO
(mg/L)
TPH-DRO
(mg/L)
0.005 1 0.7 10 0.7 0.2 1 1
0.3 3 4 10 0.7 0.2 10 10
Initial Screening Levels
RBCA Tier 1 Screening Levels
Table 2
Groundwater Analytical Results
LW Miller Truck Stop (Facility ID 0100611, Release ID MPA)
1050 W 200 North, Logan, Utah
MW-5 5/28/2011 99.29 3.05 96.24 0.5 0.033 0.044 0.04 0.008 <0.001 1.50 0.86
MW-5 11/12/2011 99.29 5.07 94.22 0.12 0.002 0.006 0.006 <0.001 <0.0005 0.35 0.72
MW-5 5/28/2012 99.29 4.61 94.68 0.44 0.04 0.051 0.063 0.001 <0.0005 1.60 0.13
MW-5 10/27/2012 99.29 4.97 94.32 0.19 0.006 0.011 0.007 <0.001 <0.0005 0.65 0.67
MW-5 5/27/2013 99.29 4.72 94.57 0.28 0.023 0.01 0.016 <0.001 <0.0005 1.20 0.89
MW-5 10/11/2014 99.29 4.71 94.58 0.27 0.005 0.017 0.003 <0.005 <0.003 0.92 0.083
MW-5 7/18/2022 99.29 4.97 94.32 0.112 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
MW-5 2/9/2023 99.29 4.65 94.64 0.066 <0.012 0.017 <0.012 <0.012 <0.005 0.582 <1
MW-5 7/15/2023 99.29 4.63 94.66 0.06 <0.012 0.026 <0.012 <0.012 <0.005 <0.125 1.2
MW-5 1/27/2024 99.29 4.43 94.86 0.058 <0.012 0.047 0.013 <0.012 <0.005 <0.125 <1
MW-5 5/27/2024 99.29 99.29 0.044 <0.012 0.021 <0.012 <0.012 <0.005 <0.125 <1
MW-6 5/28/2011 99.57 3.48 96.09 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 <0.022 <0.32
MW-6 11/12/2011 99.57 5.46 94.11 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 <0.022 0.2
MW-6 5/28/2012 99.57 4.88 94.69 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 <0.022 <0.048
MW-6 10/27/2012 99.57 5.32 94.25 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 <0.022 0.032
MW-6 5/27/2013 99.57 4.90 94.67 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 0.02 NA
MW-6 10/11/2014 99.57 4.99 94.58 <0.0005 <0.0005 <0.0005 <0.0005 <0.001 <0.0005 <0.022 <0.042
MW-6 3/29/2022 99.57 5.20 94.37 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1.0
MW-6 7/18/2022 99.57 5.42 94.15 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
MW-6 2/9/2023 99.57 5.26 94.31 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
Page 3 of 9
Sample Date
TOC
(ft)
DTW
(ft)
Groundwater
Elevation (ft)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
MTBE
(mg/L)
TPH-
GRO
(mg/L)
TPH-DRO
(mg/L)
0.005 1 0.7 10 0.7 0.2 1 1
0.3 3 4 10 0.7 0.2 10 10
Initial Screening Levels
RBCA Tier 1 Screening Levels
Table 2
Groundwater Analytical Results
LW Miller Truck Stop (Facility ID 0100611, Release ID MPA)
1050 W 200 North, Logan, Utah
MW-7 5/28/2011 99.84 3.13 96.71 0.62 0.007 0.035 0.025 0.052 0.001 3.30 2.8
MW-7 11/12/2011 99.84 4.83 95.01 0.4 0.004 0.031 0.014 0.035 0.001 3.30 4.9
MW-7 5/28/2012 99.84 4.11 95.73 0.34 0.003 0.017 0.009 0.017 0.0009 2.70 1.6
MW-7 10/27/2012 99.84 4.64 95.20 0.26 0.002 0.011 0.006 0.019 0.0008 2.10 3
MW-7 5/27/2013 99.84 4.15 95.69 0.26 0.002 0.01 0.005 0.011 0.0008 2.10 3.9
MW-7 10/11/2014 99.84 4.35 95.49 0.047 0.0008 0.003 0.002 0.002 0.0006 0.940 0.89
MW-7 7/18/2022 99.84 4.76 95.08 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 2.4
MW-7 2/9/2023 99.84 4.60 95.24 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 1.5
MW-7 7/15/2023 99.84 4.28 95.56 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 3.4
MW-7 1/27/2024 99.84 4.24 95.60 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 3.0
MW-7 5/27/2024 99.84 4.53 95.31 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 1.7
MW-8 5/28/2011 98.25 2.02 96.23 0.17 0.001 0.014 0.01 0.008 <0.0005 1.300 1.9
MW-8 11/12/2011 98.25 4.05 94.20 0.094 0.001 0.003 0.005 0.002 <0.0005 0.500 0.37
MW-8 5/28/2012 98.25 2.76 95.49 0.11 0.001 0.018 0.004 0.003 <0.0005 0.900 0.21
MW-8 10/27/2012 98.25 3.71 94.54 0.039 <0.0007 <0.0008 0.002 0.001 <0.0005 0.320 0.57
MW-8 5/27/2013 98.25 3.21 95.04 0.051 <0.0007 0.012 0.002 0.003 <0.0005 0.620 0.92
MW-8 10/11/2014 98.25 3.21 95.04 0.011 <0.0005 <0.0005 <0.0005 <0.001 <0.0005 0.220 0.098
MW-8 7/18/2022 98.25 3.78 94.47 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
MW-8 2/9/2023 98.25 3.47 94.78 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
Page 4 of 9
Sample Date
TOC
(ft)
DTW
(ft)
Groundwater
Elevation (ft)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
MTBE
(mg/L)
TPH-
GRO
(mg/L)
TPH-DRO
(mg/L)
0.005 1 0.7 10 0.7 0.2 1 1
0.3 3 4 10 0.7 0.2 10 10
Initial Screening Levels
RBCA Tier 1 Screening Levels
Table 2
Groundwater Analytical Results
LW Miller Truck Stop (Facility ID 0100611, Release ID MPA)
1050 W 200 North, Logan, Utah
MW-10 11/12/2011 96.79 3.02 93.77 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 0.028 0.66
MW-10 5/28/2012 96.79 2.80 93.99 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 0.028 0.034
MW-10 10/27/2012 96.79 2.70 94.09 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 <0.022 0.27
MW-10 5/27/2013 96.79 2.80 93.99 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 <0.022 0.064
MW-10 10/11/2014 96.79 2.53 94.26 <0.0005 <0.0005 <0.0005 <0.0005 <0.001 <0.0005 <0.022 <0.043
MW-10 7/6/2022 96.79 2.60 94.19 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
MW-10 7/15/2023 96.79 2.25 94.54 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 1.7
MW-10 1/27/2024 96.79 NM NM
MW-10 5/27/2024 96.79 2.55 94.24 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 1.1
MW-11 11/12/2011 98.25 4.52 93.73 0.14 0.002 <0.0008 0.003 <0.001 0.003 1.50 0.61
MW-11 5/28/2012 98.25 3.79 94.46 0.073 0.001 <0.0008 0.002 <0.001 0.003 1.20 0.3
MW-11 10/27/2012 98.25 4.31 93.94 0.016 0.0009 <0.0008 0.002 <0.001 0.002 1.00 2.3
MW-11 5/27/2013 98.25 4.02 94.23 0.005 <0.0007 <0.0008 0.001 <0.001 0.002 1.10 0.7
MW-11 10/11/2014 98.25 4.19 94.06 0.0005 <0.0005 <0.0005 <0.0005 <0.001 0.001 0.450 0.13
MW-11 7/6/2022 98.25 4.27 93.98 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
MW-11 2/9/2023 98.25 3.55 94.70 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
Well was buried below snow pile
Page 5 of 9
Sample Date
TOC
(ft)
DTW
(ft)
Groundwater
Elevation (ft)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
MTBE
(mg/L)
TPH-
GRO
(mg/L)
TPH-DRO
(mg/L)
0.005 1 0.7 10 0.7 0.2 1 1
0.3 3 4 10 0.7 0.2 10 10
Initial Screening Levels
RBCA Tier 1 Screening Levels
Table 2
Groundwater Analytical Results
LW Miller Truck Stop (Facility ID 0100611, Release ID MPA)
1050 W 200 North, Logan, Utah
MW-12 11/12/2011 98.54 4.97 93.57 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 <0.022 0.39
MW-12 5/28/2012 98.54 4.75 93.79 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 <0.022 0.037
MW-12 10/27/2012 98.54 5.04 93.50 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 0.05 4.2
MW-12 5/27/2013 98.54 4.85 93.69 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 <0.022 0.65
MW-12 10/11/2014 98.54 4.18 94.36 <0.0005 <0.0005 <0.0005 <0.0005 <0.001 <0.0005 <0.022 <0.043
MW-12 7/6/2022 98.54 5.38 93.16 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 2.5
MW-12 2/9/2023 98.54 3.98 94.56 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
MW-12 7/15/2023 98.54 3.84 94.70 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 5.3
MW-12 1/27/2024 98.54 3.11 95.43 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
MW-12 5/27/2024 98.54 2.55 95.99 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
MW-13 11/12/2011 100.43 6.12 94.31 0.17 0.003 0.019 0.022 <0.001 <0.0005 0.57 0.96
MW-13 5/28/2012 100.43 6.88 93.55 0.38 0.0009 0.023 0.005 <0.001 <0.0005 1.00 0.061
MW-13 10/27/2012 100.43 7.58 92.85 0.56 <0.0007 0.041 0.001 <0.001 <0.0005 1.60 0.17
MW-13 5/27/2013 100.43 6.77 93.66 0.072 <0.0007 0.0008 <0.0008 <0.001 <0.0005 0.18 0.057
MW-13 10/11/2014 100.43 6.96 93.47 <0.0005 <0.0005 <0.0005 <0.0005 <0.001 <0.0005 <0.022 <0.043
MW-13 7/6/2022 100.43 6.98 93.45 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
MW-13 2/9/2023 100.43 6.65 93.78 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
Page 6 of 9
Sample Date
TOC
(ft)
DTW
(ft)
Groundwater
Elevation (ft)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
MTBE
(mg/L)
TPH-
GRO
(mg/L)
TPH-DRO
(mg/L)
0.005 1 0.7 10 0.7 0.2 1 1
0.3 3 4 10 0.7 0.2 10 10
Initial Screening Levels
RBCA Tier 1 Screening Levels
Table 2
Groundwater Analytical Results
LW Miller Truck Stop (Facility ID 0100611, Release ID MPA)
1050 W 200 North, Logan, Utah
MW-14 11/12/2011 98.70 5.41 93.29 9.3 12 1.1 7.2 0.067 <0.005 82.0 3
MW-14 5/28/2012 98.70 5.21 93.49 10 11 1.3 8.2 0.071 <0.01 73.0 3.2
MW-14 10/27/2012 98.70 5.56 93.14 7.6 4.3 1.3 7.5 0.083 <0.003 57.0 4.9
MW-14 5/27/2013 98.70 5.14 93.56 5.7 0.28 1.4 8.4 0.11 0.001 48.0 5.3
MW-14 10/11/2014 98.70 5.48 93.22 3.9 0.079 1.1 4.1 0.09 <0.003 26.0 2.7
MW-14 2/9/2023 98.70 5.40 93.30 0.098 <0.012 <0.012 <0.012 <0.012 <0.005 0.64 2
MW-14 7/15/2023 98.70 5.20 93.50 0.131 <0.012 <0.012 <0.012 0.017 <0.005 0.706 3.2
MW-14 1/27/2024 98.70 5.20 93.50 0.124 <0.012 <0.012 0.017 <0.012 <0.005 0.708 2.4
MW-14 5/27/2024 98.70 5.18 93.52 0.125 <0.012 <0.012 <0.012 <0.012 <0.005 0.411 2.0
MW-14R 7/18/2022 98.37 5.05 93.32 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
MW-14R 7/15/2023 98.37 4.25 94.12 0.021 <0.012 <0.012 <0.012 <0.012 0.005 <0.125 2.5
MW-14R 1/27/2024 98.37 4.25 94.12 0.01 <0.012 <0.012 <0.012 <0.012 0.005 <0.125 1.6
MW-14R 5/27/2024 98.37 4.59 93.78 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 1.6
MW-15 11/12/2011 96.68 0.41 96.27 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 0.02 2.4
MW-15 5/28/2012 96.68 0.68 96.00 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 <0.022 0.42
MW-15 10/27/2012 96.68 0.98 95.70 <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 <0.022 1.7
MW-15 5/27/2013 96.68 2.28 94.40 <0.0005 <0.0007 <0.0008 0.001 <0.001 <0.0005 <0.022 1.4
MW-15 10/11/2014 96.68 2.32 94.36 <0.0005 <0.0005 <0.0005 <0.0005 <0.001 <0.0005 <0.022 0.066
Page 7 of 9
Sample Date
TOC
(ft)
DTW
(ft)
Groundwater
Elevation (ft)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
MTBE
(mg/L)
TPH-
GRO
(mg/L)
TPH-DRO
(mg/L)
0.005 1 0.7 10 0.7 0.2 1 1
0.3 3 4 10 0.7 0.2 10 10
Initial Screening Levels
RBCA Tier 1 Screening Levels
Table 2
Groundwater Analytical Results
LW Miller Truck Stop (Facility ID 0100611, Release ID MPA)
1050 W 200 North, Logan, Utah
MW-16 11/12/2011 99.20 5.11 94.09 0.002 <0.0007 0.001 <0.0008 <0.001 <0.0005 0.05 0.2
MW-16 5/28/2012 99.20 4.78 94.42 0.008 <0.0007 0.001 <0.0008 <0.001 <0.0005 0.14 0.27
MW-16 10/27/2012 99.20 4.92 94.28 0.005 <0.0007 0.001 <0.0008 <0.001 <0.0005 0.07 0.19
MW-16 5/27/2013 99.20 4.75 94.45 0.008 <0.0007 0.001 <0.0008 <0.001 <0.0005 0.09 0.52
MW-16 10/11/2014 99.20 4.79 94.41 0.001 <0.0005 <0.0005 <0.0005 <0.001 <0.0005 0.032 0.37
MW-16R 6/7/2024 99.05 4.75 94.30 <0.0005 <0.012 <0.012 <0.038 <0.012 <0.0008 <0.125 1.2
MW-17 7/18/2022 96.91 4.36 92.55 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
MW-17 2/9/2023 96.91 3.80 93.11 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
MW-17 7/15/2023 96.91 5.61 91.30 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
MW-17 1/27/2024 96.91 4.21 92.70 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
MW-17 5/27/2024 96.91 5.09 91.82 <0.005 <0.012 <0.012 <0.012 0.019 <0.005 <0.125 <1
MW-18 7/18/2022 97.61 6.73 90.88 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 16.2
MW-18 2/9/2023 97.61 4.20 93.41 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
MW-18 7/15/2023 97.61 3.96 93.65 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 1.0
MW-18 1/27/2024 97.61 2.90 94.71 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 2.0
MW-18 5/27/2024 97.61 3.93 93.68 <0.005 <0.012 <0.012 <0.012 <0.012 <0.005 <0.125 <1
DW-1 11/12/2011 NM NM - <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 <0.022 <0.03
DW-1 5/28/2012 NM NM - <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 <0.022 <0.03
DW-1 10/27/2012 NM NM - <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 <0.022 <0.031
DW-1 5/27/2013 NM NM - <0.0005 <0.0007 <0.0008 <0.0008 <0.001 <0.0005 <0.022 <0.031
DW-1 10/11/2014 NM NM -<0.0005 <0.0005 <0.0005 <0.0005 <0.001 <0.0005 <0.022 <0.043
Monitoring well MW-16 replaced in April 2024
Page 8 of 9
Sample Date
TOC
(ft)
DTW
(ft)
Groundwater
Elevation (ft)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
MTBE
(mg/L)
TPH-
GRO
(mg/L)
TPH-DRO
(mg/L)
0.005 1 0.7 10 0.7 0.2 1 1
0.3 3 4 10 0.7 0.2 10 10
Initial Screening Levels
RBCA Tier 1 Screening Levels
Table 2
Groundwater Analytical Results
LW Miller Truck Stop (Facility ID 0100611, Release ID MPA)
1050 W 200 North, Logan, Utah
TPH-GRO = total petroleum hydrocarbons - gasoline range organics
TPH-DRO = total petroleum hydrocarbons - diesel range organics
mg/L = milligrams per liter, which approximates parts per million.
NM = Not Measured
Pink-shaded cells = exceeds Initial Screening Level
Yellow-shaded cells = exceeds Tier 1 Level
Page 9 of 9
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Rockwell Solutions, Inc
Attn: Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
Work Order: 24D1665
Project: LW Miller
4/29/2024
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 4
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
4/22/24 11:58 @ 2.4 °C
4/29/2024
LW Miller
Sample ID: MW-16R, 6'
Lab ID: 24D1665-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 4/22/24 9:30
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%4/25/244/25/240.1 CTF800081.2Total Solids
MBTEXn
mg/kg dry 4/23/244/23/240.01 EPA 8260D/5030BNDBenzene
mg/kg dry 4/23/244/23/240.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 4/23/244/23/240.01 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 4/23/244/23/240.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 4/23/244/23/240.03 EPA 8260D/5030BNDToluene
mg/kg dry 4/23/244/23/240.03 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 4/23/244/23/240.288 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 4/23/244/23/2462EPA 8015 CNDDiesel Range Organics
Project Name: LW Miller CtF WO#: 24D1665
www.ChemtechFord.com
Page 2 of 4Page 2 of 4
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
4/22/24 11:58 @ 2.4 °C
4/29/2024
LW Miller
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
On calculated parameters, there may be a slight difference between summing the rounded values shown on the report
vs the unrounded values used in the calculation.
Project Name: LW Miller CtF WO#: 24D1665
www.ChemtechFord.com
Page 3 of 4Page 3 of 4
Page 4 of 4
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Rockwell Solutions, Inc
Attn: Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
Work Order: 24E2039
Project: LW Miller
6/4/2024
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
5/28/24 9:49 @ 4.8 °C
6/4/2024
LW Miller
Sample ID: MW- 2
Lab ID: 24E2039-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/27/24 17:20
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/30/245/30/240.005 EPA 8260D/5030B0.257Benzene
mg/L 5/30/245/30/240.012 EPA 8260D/5030B0.013Ethylbenzene
mg/L 5/30/245/30/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDToluene
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 5/30/245/30/240.125 EPA 8260B/C /5030A/[CALC]0.270Gasoline Range Organics
Diesel Range
mg/L 5/30/245/30/241.0 EPA 8015 CNDDiesel Range Organics
Project Name: LW Miller CtF WO#: 24E2039
www.ChemtechFord.com
Page 2 of 14Page 2 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
5/28/24 9:49 @ 4.8 °C
6/4/2024
LW Miller
Sample ID: MW- 3
Lab ID: 24E2039-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/27/24 17:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/31/245/31/240.050 EPA 8260D/5030B1.91Benzene
mg/L 5/31/245/31/240.012 EPA 8260D/5030B0.329Ethylbenzene
mg/L J-LOW-C5/31/245/31/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 5/31/245/31/240.012 EPA 8260D/5030B0.067Naphthalene
mg/L 5/31/245/31/240.012 EPA 8260D/5030B0.015Toluene
mg/L 5/31/245/31/240.012 EPA 8260D/5030B0.812Xylenes, total
Gasoline Range
mg/L 5/31/245/31/240.125 EPA 8260B/C /5030A/[CALC]4.02Gasoline Range Organics
Diesel Range
mg/L 5/30/245/30/241.0 EPA 8015 C1.9Diesel Range Organics
Project Name: LW Miller CtF WO#: 24E2039
www.ChemtechFord.com
Page 3 of 14Page 3 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
5/28/24 9:49 @ 4.8 °C
6/4/2024
LW Miller
Sample ID: MW- 4R
Lab ID: 24E2039-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/27/24 16:40
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/30/245/30/240.005 EPA 8260D/5030B0.506Benzene
mg/L 5/30/245/30/240.012 EPA 8260D/5030B0.066Ethylbenzene
mg/L 5/30/245/30/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDToluene
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 5/30/245/30/240.125 EPA 8260B/C /5030A/[CALC]0.940Gasoline Range Organics
Diesel Range
mg/L 5/30/245/30/241.0 EPA 8015 C1.1Diesel Range Organics
Project Name: LW Miller CtF WO#: 24E2039
www.ChemtechFord.com
Page 4 of 14Page 4 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
5/28/24 9:49 @ 4.8 °C
6/4/2024
LW Miller
Sample ID: MW- 5
Lab ID: 24E2039-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/27/24 16:20
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/30/245/30/240.005 EPA 8260D/5030B0.044Benzene
mg/L 5/30/245/30/240.012 EPA 8260D/5030B0.021Ethylbenzene
mg/L 5/30/245/30/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDToluene
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 5/30/245/30/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 5/30/245/30/241.0 EPA 8015 CNDDiesel Range Organics
Project Name: LW Miller CtF WO#: 24E2039
www.ChemtechFord.com
Page 5 of 14Page 5 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
5/28/24 9:49 @ 4.8 °C
6/4/2024
LW Miller
Sample ID: MW- 7
Lab ID: 24E2039-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/27/24 15:20
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/30/245/30/240.005 EPA 8260D/5030BNDBenzene
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 5/30/245/30/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDToluene
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 5/30/245/30/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 5/30/245/30/241.0 EPA 8015 C1.7Diesel Range Organics
Project Name: LW Miller CtF WO#: 24E2039
www.ChemtechFord.com
Page 6 of 14Page 6 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
5/28/24 9:49 @ 4.8 °C
6/4/2024
LW Miller
Sample ID: MW- 10
Lab ID: 24E2039-06Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/27/24 14:40
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/30/245/30/240.005 EPA 8260D/5030BNDBenzene
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 5/30/245/30/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDToluene
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 5/30/245/30/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 5/30/245/30/241.0 EPA 8015 C1.1Diesel Range Organics
Project Name: LW Miller CtF WO#: 24E2039
www.ChemtechFord.com
Page 7 of 14Page 7 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
5/28/24 9:49 @ 4.8 °C
6/4/2024
LW Miller
Sample ID: MW- 12
Lab ID: 24E2039-07Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/27/24 15:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/31/245/31/240.005 EPA 8260D/5030BNDBenzene
mg/L 5/31/245/31/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L J-LOW-C5/31/245/31/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 5/31/245/31/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 5/31/245/31/240.012 EPA 8260D/5030BNDToluene
mg/L 5/31/245/31/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 5/31/245/31/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 5/30/245/30/241.0 EPA 8015 CNDDiesel Range Organics
Project Name: LW Miller CtF WO#: 24E2039
www.ChemtechFord.com
Page 8 of 14Page 8 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
5/28/24 9:49 @ 4.8 °C
6/4/2024
LW Miller
Sample ID: MW- 14
Lab ID: 24E2039-08Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/27/24 15:40
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/31/245/31/240.005 EPA 8260D/5030B0.125Benzene
mg/L 5/31/245/31/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L J-LOW-C5/31/245/31/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 5/31/245/31/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 5/31/245/31/240.012 EPA 8260D/5030BNDToluene
mg/L 5/31/245/31/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 5/31/245/31/240.125 EPA 8260B/C /5030A/[CALC]0.411Gasoline Range Organics
Diesel Range
mg/L 5/30/245/30/241.0 EPA 8015 C2.0Diesel Range Organics
Project Name: LW Miller CtF WO#: 24E2039
www.ChemtechFord.com
Page 9 of 14Page 9 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
5/28/24 9:49 @ 4.8 °C
6/4/2024
LW Miller
Sample ID: MW- 14R
Lab ID: 24E2039-09Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/27/24 16:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/30/245/30/240.005 EPA 8260D/5030BNDBenzene
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 5/30/245/30/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDToluene
mg/L 5/30/245/30/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 5/30/245/30/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 5/30/245/30/241.0 EPA 8015 C1.6Diesel Range Organics
Project Name: LW Miller CtF WO#: 24E2039
www.ChemtechFord.com
Page 10 of 14Page 10 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
5/28/24 9:49 @ 4.8 °C
6/4/2024
LW Miller
Sample ID: MW- 17
Lab ID: 24E2039-10Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/27/24 14:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/31/245/31/240.005 EPA 8260D/5030BNDBenzene
mg/L 5/31/245/31/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L J-LOW-C5/31/245/31/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 5/31/245/31/240.012 EPA 8260D/5030B0.019Naphthalene
mg/L 5/31/245/31/240.012 EPA 8260D/5030BNDToluene
mg/L 5/31/245/31/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 5/31/245/31/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 5/30/245/30/241.0 EPA 8015 CNDDiesel Range Organics
Project Name: LW Miller CtF WO#: 24E2039
www.ChemtechFord.com
Page 11 of 14Page 11 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
5/28/24 9:49 @ 4.8 °C
6/4/2024
LW Miller
Sample ID: MW- 18
Lab ID: 24E2039-11Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 5/27/24 14:20
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 5/31/245/31/240.005 EPA 8260D/5030BNDBenzene
mg/L 5/31/245/31/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L J-LOW-C5/31/245/31/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 5/31/245/31/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 5/31/245/31/240.012 EPA 8260D/5030BNDToluene
mg/L 5/31/245/31/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 5/31/245/31/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 5/30/245/30/241.0 EPA 8015 CNDDiesel Range Organics
Project Name: LW Miller CtF WO#: 24E2039
www.ChemtechFord.com
Page 12 of 14Page 12 of 14
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
5/28/24 9:49 @ 4.8 °C
6/4/2024
LW Miller
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
On calculated parameters, there may be a slight difference between summing the rounded values shown on the report
vs the unrounded values used in the calculation.
Flag Descriptions
J-LOW-C = Estimated low due to low recovery of CCV
Project Name: LW Miller CtF WO#: 24E2039
www.ChemtechFord.com
Page 13 of 14Page 13 of 14
Page 14 of 14
The analyses presented on this report were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case narrative. If the report is to be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Client Service Contact: 801.262.7299
Rockwell Solutions, Inc
Attn: Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
Work Order: 24F0654
Project: LW Miller
6/17/2024
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 4
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
6/10/24 10:47 @ 3.4 °C
6/17/2024
LW Miller
Sample ID: MW- 16R
Lab ID: 24F0654-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 6/7/24 15:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 6/11/246/11/240.005 EPA 8260D/5030BNDBenzene
mg/L 6/11/246/11/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 6/11/246/11/240.008 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 6/11/246/11/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 6/11/246/11/240.012 EPA 8260D/5030BNDToluene
mg/L 6/11/246/11/240.038 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 6/11/246/11/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 6/11/246/11/241.0 EPA 8015 C1.2Diesel Range Organics
Project Name: LW Miller CtF WO#: 24F0654
www.ChemtechFord.com
Page 2 of 4Page 2 of 4
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
6/10/24 10:47 @ 3.4 °C
6/17/2024
LW Miller
Report Footnotes
Abbreviations
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million.
1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion.
1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion.
On calculated parameters, there may be a slight difference between summing the rounded values shown on the report
vs the unrounded values used in the calculation.
Project Name: LW Miller CtF WO#: 24F0654
www.ChemtechFord.com
Page 3 of 4Page 3 of 4
Page 4 of 4
BORING LOG
Well No.
DRILLING METHOD ____________________________________________
DRILLER / COMPANY ___________________________________________ TOTAL DEPTH ____________ WATER DEPTH _______
BORING DIAMETER _________ CASING DIAMETER _________ CASING MATERIAL ____________ SLOT SIZE __________
SURFACE ELEV. ____________ TOP OF CASING ELEV. ___________ LOGGED BY _____________________________________________
EP
(
FT
D
TH

.)
E
SAMPL
S
BLOWS ON
S PLAMER
SAMPLE
R
INTE
VAL
e
(fe
t)DESCRIPTION / SOIL CLASSIFICATION
GRAPHIC LOG
AND
WELL CONSTRUCTION DEPTH
00
05
10
15
PID
Direct Push
Jaret, Direct Push
3”
End of Boring at 13 feet. Set monitoring well
PVC2”
NA
7’
0.01”
David Hansen
13.0’
0-5
5-10
00
05
10
bentonite
seal
10-20
silica
sand
.010"
Screen
road
box
41
MW-16R
15
10-13
Sand and gravel fill
100.23
DATE: 4/22/24
LOCATION:
PROJECT: LW Miller
1050 W 200 North
Logan, Utah
0
0
Silt (ML), low plasticity, black (grades to gray), damp
Asphalt
Silty clay (CL), moderate plasticity, grayish light brown, damp
Fat Clay (CH), high plasticity, light brown, saturated