DERR-2024-012280

1
Rockwell Solutions Inc., 718 E Bridger Lane, Elk Ridge, UT 84651 801-361-2930 [e-mail]

Rockwell Solutions, Inc.
718 E Bridger Lane
Elk Ridge, UT 84651
[phone]
November 14, 2024

Mr. David Bell
Bell Oil Co.
118 South 15 West
P.O. Box 238
Coalville, Utah 84107

Re: Confirmation Sampling Report
Sinclair Truck Stop, located at 7100 North Silver Creek Road, Park City, Utah
Facility Identification No. 7000005, Release Site KFY

Dear Mr. Bell:

In accordance with a 8/1/24 request from the Division of Environmental Response and Remediation
(DERR), Rockwell Solutions prepared work plan KFY-38 to collect soil and groundwater samples at the
above-referenced site. Release KFY was reported on October 19, 1997, based on observations and
analytical data during closure of underground storage tanks (USTs). Excavation, product removal, soil
and groundwater remediation, and groundwater monitoring activities have taken place since that time.
DERR requested soil confirmation samples and a groundwater sample to evaluate release KFY for site
closure.

Methodology
As requested, fifteen-foot borings were installed at the eight locations shown on Figure 1. 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 borings.

A portion of each 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). Soil samples for laboratory
analysis were collected at the depth of the highest field screening reading for each boring. If the field
screening did not have any reading above background, the laboratory sample was collected at the
soil/groundwater interface. Additionally, laboratory samples were collected at intervals designated by
DERR at B-4, B-6, B-7, and B-8.

Samples were 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. TPH-GRO
fractionation data is shown for all samples. The laboratory was instructed to conduct TPH-DRO
fractionation on any soil sample that exceeded the Tier 1 level for TPH-DRO, however, none of the
samples exceeded the Tier 1 level.

2
Rockwell Solutions Inc., 718 E Bridger Lane, Elk Ridge, UT 84651 801-361-2930 [e-mail]

The depth to groundwater was measured at MW-16 and a groundwater sample was collected after purging
the well. The groundwater sample was analyzed for MBTEXN and TPH-GRO using Method 8260, and
TPH-DRO using Method 8015. After the results were received, it was noted that TPH-DRO exceeded the
Tier 1 level for MW-16 and the lab was requested to analyze the sample for TPH-DRO fractionation.

The unusually high TPH-DRO concentration in the sample from MW-16 seemed anomalous.
Accordingly, on October 30, 2024, MW-16 was sampled again and samples were delivered to both
Chemtech Ford Laboratories and to Utility Testing. The samples were analyzed for MBTEXN and TPH-
GRO using Method 8260 and TPH-DRO using Method 8015. Additionally, Chemtech Ford analyzed the
sample for TPH-DRO fractionation using Method 8270. Utility Testing is not certified for Method 8270.

Soil Type
The native soil at the site consists of interlayered silt and gravelly sand to a depth of approximately nine
to ten feet below grade, below which is a silty clay layer to at least fifteen feet below grade. Boring logs
are attached.

Soil Analytical Results
Table 1 lists the analytical results of all soil samples collected at the site including the confirmation
samples. All concentrations were below Tier 1 levels. The laboratory analytical reports and chain-of-
custody records for the confirmation soil samples are attached.

Groundwater Analytical Results
Table 2 lists the analytical results of all groundwater samples collected at the site including the
confirmation samples at MW-16. The samples collected on October 30, 2024, at MW-16 did not exceed
Tier 1 levels. The laboratory analytical reports and chain-of-custody records for the confirmation soil
samples are attached.

Receptor Update
The convenience store had been serviced by an onsite drinking water well. The line from the well was
severed and the store was connected to culinary water on October 3, 2024. The drinking water well is
now inactive.

Conclusions and Recommendations
Based on the confirmation sampling and the elimination of the drinking water well as a receptor,
Rockwell Solutions recommends that release KFY be closed and that no further action be required.

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

Thank you,

David S. Hansen
Certified UST Consultant CC#130

cc: Kevin Beery, DERR
Figure 1
NORTH
Approx. scale in feet
00 40
Sinclair Truck Stop
7100 North Silver Creek Road
Park City, Utah
Site Map
Monitoring Well
MW-3
MW-17R
MW-7
MW-6
MW-5
MW-4
B-6
MW-8
MW-10
MW-9
MW-3MW-1 MW-2MW-4
MW-22
MW-16
MW-10
Confirmation Boring
B-5
B-8
B-7
B-4
B-3 B-2
B-1
Sampling
Location
Depth
(ft)Date MTBE
(mg/kg)
Benzene
(mg/kg)
Toluene
(mg/kg)
Ethyl-
benzene
(mg/kg)
Total
Xylenes
(mg/kg)
Naph-
thalene
(mg/kg)
TPH-
GRO
(mg/kg)
TPH-
DRO
(mg/kg)
0.3 0.2 9 5 142 51 150 500
0.3 0.9 25 23 142 51 1,500 5,000
SS#1 12 10/13-20/1997 <.007 <.007 0.0214 0.0174 0.228 0.424 32.9 NA
SS#2 12 10/13-20/1997 <.005 <.005 <.005 <.005 <.015 <.005 <10 NA
SS#3 12 10/13-20/1997 <.059 <.059 0.685 0.828 5.45 1.5 112 NA
SS#4 12 10/13-20/1997 <.055 <.055 0.127 0.152 2.72 0.972 73.1 NA
S9 (NW) 12 10/13-20/1997 <.005 <.005 0.0146 <.005 <.015 <.005 <10 NA
S10 (NE) 12 10/13-20/1997 <.005 <.005 0.0097 <.005 <.015 <.005 <10 NA
S11 (SW) 12 10/13-20/1997 <.005 <.005 0.0083 <.005 <.015 <.005 <10 NA
Sl2 12 10/13-20/1997 <.005 <.005 0.0116 <.005 <.015 <.005 <10 NA
S13 4 10/13-20/1997 <.255 <.255 0.38 1.65 19.68 23.88 11950 NA
S14 4 10/13-20/1997 <.129 0.217 4.99 6.15 40.56 15.28 9330 NA
S15 4 10/13-20/1997 <.142 <.142 0.334 1.1 4.9 5.04 483.6 NA
S16 4 10/13-20/1997 <.118 <.118 0.392 1.22 5.67 5.14 271.4 NA
S17 4 10/13-20/1997 <.122 <.122 0.315 1.98 8.23 5.82 517.5 NA
S18 (north) 8 10/13-20/1997 <.005 <.005 <.005 <.005 <.015 <.005 <l0 NA
S19 (south) 8 10/13-20/1997 <.005 <.005 <.005 <.005 <.015 <.005 <l0 NA
CS-01-Flr-E 7 10/13-20/1997 <.005 <.005 <.005 <.005 <.015 0.0368 <10 NA
CS-02 SE 6 10/13-20/1997 <.267 <.267 0.309 2.63 7.91 15.43 3136 NA
CS-03 NE 6 10/13-20/1997 <.316 <.3l6 0.393 3.02 14.6 12.1 3637 NA
CS-04 5 10/13-20/1997 <.088 <.088 0.236 0.526 3.38 4.54 1304 NA
CS-05 7 10/13-20/1997 <.120 <.120 0.758 2.6 13.94 14.5 4742 NA
CS-06 6 10/13-20/1997 <.125 <.125 1.89 4.61 23.5 20.1 4731 NA
UST Closure and Excavation Confirmation Samples
Table 1
ISL's
RBCA Tier 1 Screening Levels
Soil Analytical Results
7100 North Silver Creek Road, Park City, Utah
Sinclair Truck Stop
Page 1 of 5
Sampling
Location
Depth
(ft)Date MTBE
(mg/kg)
Benzene
(mg/kg)
Toluene
(mg/kg)
Ethyl-
benzene
(mg/kg)
Total
Xylenes
(mg/kg)
Naph-
thalene
(mg/kg)
TPH-
GRO
(mg/kg)
TPH-
DRO
(mg/kg)
0.3 0.2 9 5 142 51 150 500
0.3 0.9 25 23 142 51 1,500 5,000
UST Closure and Excavation Confirmation Samples
Table 1
ISL's
RBCA Tier 1 Screening Levels
Soil Analytical Results
7100 North Silver Creek Road, Park City, Utah
Sinclair Truck Stop
West End 7 10/13-20/1997 <.063 <.063 0.161 0.693 0.854 9.8 2050 NA
West End 10 10/13-20/1997 <.118 <.118 2.05 2.84 20.23 12.49 12850 NA
West End 14 10/13-20/1997 <.005 <.005 <.005 <.005 <.015 <.005 <10 NA
Center exe #5 14 10/13-20/1997 <.005 <.005 0.0117 <.005 0.0221 0.126 19.3 NA
SS #6 12 10/13-20/1997 <.005 <.005 <.005 <.005 <.015 <.005 <10 NA
SS #7 12 10/13-20/1997 <.005 <.005 0.0057 <.005 <.015 0.0079 <10 NA
SS #8 12 10/13-20/1997 <.005 <.005 <.005 <.005 <.015 <.005 <I0 NA
SS #9 12 10/13-20/1997 <.005 <.005 <.005 <.005 <.015 <.005 <10 NA
B1 7-9 11/25-26/1997 NA <0.1 <0.1 <0.1 <0.1 <0.1 720 NA
B1 9-11 11/25-26/1997 NA <0.1 <0.I <0.1 <0. I <0.1 12 NA
B2 5-7 11/25-26/1997 NA <0.I <0.1 <0.1 0.26 1.1 560 NA
B2 7-9 11/25-26/1997 NA <0.1 <0.1 <0.1 <0.1 <0.1 <2.0 NA
B2 9-11 11/25-26/1997 NA <0.1 <0.1 <0.1 <0.1 <0.1 <2.0 NA
B3 6-8 11/25-26/1997 NA <0.1 <0.1 0.1 0.81 4.3 1400 NA
B3 8-9 11/25-26/1997 NA <0.1 <0.1 <0.1 <0.1 <0.1 <2.0 NA
B4 5-7 11/25-26/1997 NA <0.1 <0.1 0.43 3.3 7.3 2200 NA
B4 7-9 11/25-26/1997 NA <0.1 <0.1 0.57 5.9 17 500 NA
B4 9-11 11/25-26/1997 NA <0.1 <0.1 <0.1 <0.1 <0. l <2.0 NA
B5 5-7 11/25-26/1997 NA <0.1 <0.1 <0.1 <0.1 1.6 920 NA
B5 7-9 11/25-26/1997 NA <0.1 <0.1 0.82 7 16 6200 NA
B6 3-5 11/25-26/1997 NA <0.1 <0.1 0.19 1.9 7.3 2300 NA
Subsurface Investigation Samples
Page 2 of 5
Sampling
Location
Depth
(ft)Date MTBE
(mg/kg)
Benzene
(mg/kg)
Toluene
(mg/kg)
Ethyl-
benzene
(mg/kg)
Total
Xylenes
(mg/kg)
Naph-
thalene
(mg/kg)
TPH-
GRO
(mg/kg)
TPH-
DRO
(mg/kg)
0.3 0.2 9 5 142 51 150 500
0.3 0.9 25 23 142 51 1,500 5,000
UST Closure and Excavation Confirmation Samples
Table 1
ISL's
RBCA Tier 1 Screening Levels
Soil Analytical Results
7100 North Silver Creek Road, Park City, Utah
Sinclair Truck Stop
B6 5-7 11/25-26/1997 NA <0.1 <0.1 1.1 9.1 17 6300 NA
B6 7-9 11/25-26/1997 NA <0.1 <0.1 0.5 4.3 14 3300 NA
B7 5-7 11/25-26/1997 NA <0.1 <0.1 0.25 2.5 6.8 2000 NA
B7 7-9 11/25-26/1997 NA <0.1 <0.1 0.52 3.4 13 4900 NA
B8 5-7 11/25-26/1997 NA <0.1 <0.I 0.28 2.5 7.7 2300 NA
B8 9-11 11/25-26/1997 NA <0.1 <0.1 <0.1 <0.1 <0.1 <2.0 NA
B9 7-9 11/25-26/1997 NA <0.1 <0.1 0.19 1.5 8.1 2700 NA
B10 7-9 11/25-26/1997 NA <0.1 <0.1 0.13 1.3 6.8 2100 NA
B10 9-11 11/25-26/1997 NA <0.1 <0.1 2.1 18 Z8 15000 NA
B11 5-7 11/25-26/1997 NA <0.1 <0.1 <O.I <0.1 <0.1 <2.0 NA
B11 7-9 11/25-26/1997 NA <0.1 <0.1 <0. I 0.28 1.5 410 NA
B12 5-7 11/25-26/1997 NA <0.1 <0.1 0.45 4.4 15 4300 NA
B12 7-9 11/25-26/1997 NA <0.1 <0.1 0.32 3 11 3100 NA
B13 7-9 11/25-26/1997 NA <0.1 <0.1 0.45 3.5 15 4500 NA
G14 5-7 12/3-4/1997 NA <0.1 <0.1 0.43 0.77 13 240 NA
G14 7-9 12/3-4/1997 NA <0.1 <0.1 <0.1 TO. I <0.1 16 NA
G15 8-10 12/3-4/1997 NA <0.1 <0.1 <0.1 <0.1 <0. I <2.0 NA
G16 7-9 12/3-4/1997 NA <0.1 0.53 1.2 8 19 7300 NA
G17 5-7 12/3-4/1997 NA <0.1 <0.1 <0.1 <0.1 <0.1 11 NA
G17 7-9 12/3-4/1997 NA 0.34 6.9 6.7 44 31 14000 NA
G17 9-10 12/3-4/1997 NA 0.43 3.7 2.8 21 33 15000 NA
G17 10-11 12/3-4/1997 NA <0.1 <0.1 TO. I <0.1 0.17 95 NA
Page 3 of 5
Sampling
Location
Depth
(ft)Date MTBE
(mg/kg)
Benzene
(mg/kg)
Toluene
(mg/kg)
Ethyl-
benzene
(mg/kg)
Total
Xylenes
(mg/kg)
Naph-
thalene
(mg/kg)
TPH-
GRO
(mg/kg)
TPH-
DRO
(mg/kg)
0.3 0.2 9 5 142 51 150 500
0.3 0.9 25 23 142 51 1,500 5,000
UST Closure and Excavation Confirmation Samples
Table 1
ISL's
RBCA Tier 1 Screening Levels
Soil Analytical Results
7100 North Silver Creek Road, Park City, Utah
Sinclair Truck Stop
G18 7-9 12/3-4/1997 NA 0.49 1.8 1.4 8.9 3.4 870 NA
G18 9-11 12/3-4/1997 NA <0.1 <0.1 <0.1 0.7 3.8 1200 NA
G18 11-13 12/3-4/1997 NA <0.1 <0.1 <0.1 <0.1 <0.1 <2.0 NA
G19 7-9 12/3-4/1997 NA <0.1 <0.1 0.49 4.9 14 5000 NA
G20 7-9 12/3-4/1997 NA <0.1 1.2 1.5 13 31 14000 NA
G21 7-9 12/3-4/1997 NA <0.1 <0.1 0.62 4.7 16 6500 NA
G22 7-9 12/3-4/1997 NA <0.1 <0.1 <0.1 0.54 4.8 1500 NA
G23 7-9 12/3-4/1997 NA <0.1 <0.1 0.85 7.1 20 7900 NA
MW-1 9-11 12/3-4/1997 NA <0.1 <0.1 <0.1 <0.1 0.2 61 NA
MW-2 9-11 12/3-4/1997 NA <0.1 <0.1 <0.1 <0.1 <0.1 <2.0 NA
MW-3 9-11 12/3-4/1997 NA <0. I <0.1 <0.1 <0.1 0.25 61 NA
MW-5 9-11 12/3-4/1997 NA <0.1 <0.1 0.13 1.2 3.8 1200 NA
MW-6 9-10.5 12/3-4/1997 NA <0.1 <0.1 <0.1 <0.1 0.11 61 NA
MW-7 9-10.5 12/3-4/1997 NA <0.1 <0.1 0.31 2.3 6.8 2100 NA
B-1, 9' 9 9/25/2024 <0.01 <0.009 <0.02 <0.02 <0.07 <0.02 <0.237 <56
B-2, 9' 9 9/25/2024 <0.20 <0.13 <0.34 <0.34 <1.01 <0.34 <3.37 <67
B-3, 9' 9 9/25/2024 <0.02 0.02 <0.03 <0.03 <0.10 <0.03 <0.330 <67
B-4, 4-6' 4-6 9/25/2024 <0.02 <0.01 <0.03 <0.03 <0.10 <0.03 <0.322 <67
B-4, 9' 9 9/25/2024 <0.17 <0.11 <0.28 <0.28 <0.83 <0.28 14.3 3,000
B-5, 7' 7 9/25/2024 <0.17 <0.11 <0.28 1.42 5.56 0.29 66.3 534
B-6, 9' 9 9/25/2024 <0.17 <0.11 <0.29 <0.29 <0.86 0.56 18.8 2,950
2024 Confirmation Samples
Page 4 of 5
Sampling
Location
Depth
(ft)Date MTBE
(mg/kg)
Benzene
(mg/kg)
Toluene
(mg/kg)
Ethyl-
benzene
(mg/kg)
Total
Xylenes
(mg/kg)
Naph-
thalene
(mg/kg)
TPH-
GRO
(mg/kg)
TPH-
DRO
(mg/kg)
0.3 0.2 9 5 142 51 150 500
0.3 0.9 25 23 142 51 1,500 5,000
UST Closure and Excavation Confirmation Samples
Table 1
ISL's
RBCA Tier 1 Screening Levels
Soil Analytical Results
7100 North Silver Creek Road, Park City, Utah
Sinclair Truck Stop
B-6, 10-12' 10-12 9/25/2024 <0.21 <0.14 <0.34 <0.34 <1.03 <0.34 4.1 485
B-7, 7-8' 7-8 9/25/2024 <0.16 <0.11 <0.27 <0.27 <0.81 0.37 16.5 3,920
B-7 14-15' 14-15 9/25/2024 <0.02 <0.01 <0.03 <0.03 <0.10 <0.03 <0.338 <68
B-8, 4-6' 4-6 9/25/2024 <0.02 <0.01 <0.03 <0.03 <0.09 <0.03 <0.299 <60
B-8, 9-10' 9-10 9/25/2024 <0.17 <0.11 <0.28 <0.28 <0.83 <0.28 15.5 1,830
TPH-GRO = Total petroleum hydrocarbons-gasoline range organics. Analyzed by Method 8260
TPH-DRO = Total petroleum hydrocarbons - diesel range organics. Analyzed by Method 8015
MBTEXN analyzed by Method 8260
mg/kg = milligrams per kilogram, which approximates parts per million
NA = Not Analyzed
ISL = Initial Screening Level
Page 5 of 5
Sample
Number TOC
Elevation
Date
Collected
Depth to
Water (ft)
Product
Thickness
(ft)
Groundwater
Elevation (ft)
MTBE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Total
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
TPH-
GRO
(mg/L)
TPH-
DRO
(mg/L)
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
WS1(south)10/13-20/1997 8.5 0.0 0.0 <.025 0.035 0.0239 0.0239 0.102 0.0849 2.7 NA
WS2 (north)10/13-20/1997 8.5 0.0 0.0 <.003 0.0084 0.0338 0.0276 0.187 0.271 307 NA
WS-Sep 10/13-20/1997 NM 0.0 0.0 <.045 <.045 0.254 0.08 0.509 0.218 750 NA
Water Adj 10/13-20/1997 NM 0.0 0.0 <.005 0.0396 0.181 0.122 0.553 0.0634 8.6 NA
B1 11/25-26/1997 NM 0.0 0.0 NA <0.005 0.015 <0.005 <0.005 <0.010 0.37 NA
B4 11/25-26/1997 NM 0.0 0.0 NA 0. 14 0.32 0.16 1.3 0.22 110 NA
B6 11/25-26/1997 NM 0.0 0.0 NA 0.16 0.37 0.13 0.89 <0.2 80 NA
B7 11/25-26/1997 NM 0.0 0.0 NA <0.10 0.16 0.11 0.64 <0.2 54 NA
B8 11/25-26/1997 NM 0.0 0.0 NA <0.10 <0.10 <0.10 0.39 <0.2 77 NA
B9 11/25-26/1997 NM 0.0 0.0 NA 0.13 0.47 0.45 3.1 0.58 450 NA
B10 11/25-26/1997 NM 0.0 0.0 NA 0.17 0.74 0.5 3.9 0.94 570 NA
B11 11/25-26/1997 NM 0.0 0.0 NA 0.17 0.18 0.24 1.4 0.25 240 NA
B12 11/25-26/1997 NM 0.0 0.0 NA 0.15 0.32 0.18 1.1 0.27 94 NA
G14 12/3-4/1997 NM 0.0 0.0 NA <0.10 <0.10 0.035 0.035 0.06 6 NA
G15 12/3-4/1997 NM 0.0 0.0 NA 0.012 0.043 0.032 0.19 <0.020 4.5 NA
G18 12/3-4/1997 NM 0.0 0.0 NA <0.10 <0.10 <0.10 <0.10 <0.20 <0.10 NA
G19 12/3-4/1997 NM 0.0 0.0 NA <0.10 0.14 <0.10 0.36 <0.20 16 NA
G20 12/3-4/1997 NM 0.0 0.0 NA <0.5 0.51 <0.5 1.1 <l.0 54 NA
G23 12/3-4/1997 NM 0.0 0.0 NA <0.50 <0.50 <0.50 1.0 <1.0 390 NA
Subsurface investigation samples
UST Closure and Excavation Confirmation Samples
RBCA Tier 1 Screening Levels
Table 2
Groundwater Analytical Results
Sinclair Truck Stop
7100 North Silver Creek Road, Park City, Utah
ISL's
Page 1 of 14
Sample
Number TOC
Elevation
Date
Collected
Depth to
Water (ft)
Product
Thickness
(ft)
Groundwater
Elevation (ft)
MTBE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Total
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
TPH-
GRO
(mg/L)
TPH-
DRO
(mg/L)
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
UST Closure and Excavation Confirmation Samples
RBCA Tier 1 Screening Levels
ISL's
MW-l 12/18/1997 7.98 0.60 90.52 NA 0.035 0.043 0.016 0.11 0.016 NA NA
98.05 7/8/1998 NT 0.13 NT NT NT NT NT NT NT NT NT
10/15/1998 5.88 6.00 96.67 NT NT NT NT NT NT NT NT
1/20/1999 4.77 0.38 93.57 NT NT NT NT NT NT NT NT
4/19/1999 2.39 0.00 95.66 <0.005 <0.005 <0.005 <0.005 <0.005 <0.002 NA NA
7/1/1999 4.35 0.00 93.70 <0.005 0.02 0.011 0.059 0.051 0.58 NA NA
10/11/1999 7.64 5.40 94.46 <0.005 <0.005 <0.005 <0.005 <0.005 <0.002 NA NA
2/9/2000 NT 0.75 NT NT NT NT NT NT NT NT NT
6/6/2000 3.65 0.25 94.59 <0.005 <0.005 <0.005 0.0147 0.0212 0.0458 1.2 75.5
MW-2 12/18/1997 7.12 0.00 91.10 NA <0.005 <0.005 <0.005 <0.005 <0.010 NA NA
98.22 7/8/1998 4.67 0.00 93.55 <0.005 0.00575 <0.005 <0.005 <0.005 0.00455 NA NA
10/15/1998 4.10 0.00 94.12 0.0043 0.0053 <0.005 0.017 0.0031 0.014 NA NA
1/20/1999 4.45 0.00 93.77 <0.005 0.0062 <0.005 0.014 <0.005 0.0043 NA NA
4/19/1999 2.28 0.00 95.94 0.0255 0.0032 <0.005 0.019 0.0033 <0.002 NA NA
7/1/1999 4.35 0.00 93.87 <0.005 0.0028 <0.005 0.025 <0.005 0.017 NA NA
10/11/1999 6.63 0.00 91.59 <0.005 <0.005 <0.005 <0.005 <0.005 <0.002 NA NA
6/6/2000 2.94 0.00 95.28 <0.0I <0.0I <0.0I <0.0I <0.03 <0.01 <0.5 2.6
Monitoring well samples
Page 2 of 14
Sample
Number TOC
Elevation
Date
Collected
Depth to
Water (ft)
Product
Thickness
(ft)
Groundwater
Elevation (ft)
MTBE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Total
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
TPH-
GRO
(mg/L)
TPH-
DRO
(mg/L)
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
UST Closure and Excavation Confirmation Samples
RBCA Tier 1 Screening Levels
ISL's
MW-4 12/18/1997 7.57 0.00 92.21 NA 0.041 0.023 0.055 0.18 0.042 NA NA
99.78 7/8/1998 5.59 0.00 94.19 <0.005 0.068 0.03 0.074 0.335 0.068 NA NA
10/15/1998 6.13 4.00 96.65 NT NT NT NT NT NT NT NT
1/20/1999 5.37 0.06 94.46 NT NT NT NT NT NT NT NT
4/19/1999 2.89 0.00 96.89 <0.005 <0.005 <0.005 <0.005 0.0028 <0.002 NA NA
7/1/1999 5.00 0.00 94.78 <0.005 0.022 0.016 0.022 0.066 0.044 NA NA
10/11/1999 8.67 0.3S #VALUE! 0.054 0.01 <0.005 0.017 0.056 0.036 NA NA
2/9/2000 5.92 0.00 93.86 <0.005 <0.005 <0.005 <0.005 <0.005 <0.002 NA NA
6/6/2000 3.64 0.00 96.14 <0.005 <0.005 <0.005 0.008 0.0117 0.0106 <0.5 36.8
8/21/2001 6.14 0.00 93.64 <0.002 <0.001 <0.002 0.0035 0.0038 0.0023 0.18 0.024
11/15/2001 6.84 0.00 92.94 <0.002 0.001 <0.002 0.0045 0.0034 <0.002 0.078 0.037
2/5/2002 6.29 0.00 93.49 <0.002 <0.001 <0.002 0.0052 0.0025 <0.002 0.061 <0.020
5/24/2002 3.69 0.00 96.09 <0.002 <0.001 <0.002 0.0068 0.0032 <0.002 0.1 0.23
8/29/2002 6.64 0.00 93.14 <0.002 0.0013 <0.002 0.0065 0.0071 0.0061 0.53 1.4
11/5/2002 6.88 0.00 92.90 <0.002 <0.001 <0.002 0.0036 0.0021 0.0027 0.22 0.051
2/28/2003 5.14 0.00 94.64 <0.002 0.0012 <0.002 0.011 0.0057 0.0046 0.093 <0.020
5/14/2003 3.40 0.00 96.38 <0.002 0.0016 <0.002 0.019 0.011 0.0067 0.19 <0.020
8/28/2003 6.44 0.00 93.34 <0.002 0.0011 <0.002 0.0082 0.0054 0.0068 0.46 <0.020
MW-5 12/18/1997 NG 0.00 NT NA 0.14 0.31 <0.005 0.54 <0.002 NA NA
98.15 7/8/1998 5.63 0.00 92.52 <0.005 0.102 0.0849 0.0786 0.453 0.129 NA NA
10/15/1998 7.40 5.00 94.50 NT NT NT NT NT NT NT NT
1/20/1999 6.08 0.63 92.54 NT NT NT NT NT NT NT NT
4/19/1999 4.75 0.00 93.40 <0.005 0.097 <0.005 0.068 0.5 0.14 NA NA
7/1/1999 6.00 0.00 92.15 <0.005 <0.005 <0.005 <0.005 0.82 1.3 NA NA
10/11/1999 7.78 2.00 91.87 <0.005 0.1 <0.005 0.097 0.52 0.18 NA NA
2/9/2000 6.40 6.00 96.25 <0.005 0.0634 <0.005 0.076 0.367 0.24 NA NA
6/6/2000 5.40 1.00 93.50 0.0027 0.053 0.0022 0.0542 0.272 0.169 3.1 29
Page 3 of 14
Sample
Number TOC
Elevation
Date
Collected
Depth to
Water (ft)
Product
Thickness
(ft)
Groundwater
Elevation (ft)
MTBE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Total
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
TPH-
GRO
(mg/L)
TPH-
DRO
(mg/L)
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
UST Closure and Excavation Confirmation Samples
RBCA Tier 1 Screening Levels
ISL's
MW-6 12/18/1997 7.56 0.00 91.70 0.006 0.065 <0.010 <0.010 0.24 <0.020 NA NA
99.26 7/8/1998 5.97 0.00 93.29 <0.005 0.111 0.025 0.08 0.453 0.094 NA NA
10/15/1998 5.92 0.00 93.34 <0.005 0.073 0.0098 0.11 0.67 0.1 NA NA
1/20/1999 5.73 0.00 93.53 <0.005 0.045 BDL 0.1 0.51 0.058 NA NA
4/19/1999 3.12 0.00 96.14 <0.005 0.042 0.0031 0.12 0.43 0.17 NA NA
7/1/1999 5.25 0.00 94.01 <0.005 0.043 0.0024 0.11 0.4 0.14 NA NA
10/11/1999 7.69 0.00 91.57 <0.005 0.043 <0.005 0.078 0.16 0.091 NA NA
6/6/2000 4.28 0.00 94.98 0.0094 0.0266 <0.005 0.0482 0.163 0.0532 1.2 4.9
MW-7 12/18/1997 7.04 0.50 91.74 NA 0.015 0.039 0.015 0.1 0.021 NA NA
98.40 7/8/1998 5.32 0.00 93.08 0.032 0.114 0.166 0.023 0.363 BDL NA NA
10/15/1998 5.40 0.00 93.00 0,035 0.13 0.071 0.089 0.42 0.1 NA NA
1/20/1999 5.00 0.00 93.40 0,029 0.17 0.046 0.12 0.47 0.047 NA NA
4/19/1999 2.81 0.00 95.59 0.044 0.13 <0.005 0.097 0.27 0.078 NA NA
7/1/1999 4.57 0.00 93.83 0.027 0.065 0.0034 BDL 0.071 0.0069 NA NA
10/11/1999 7.30 0.25 91.29 0.032 0.085 <0.005 0.052 0.16 0.097 NA NA
2/9/2000 5.02 0.00 93.38 0.0161 0.0679 <0.005 0.08 0.245 0.146 NA NA
6/6/2000 3.57 0.00 94.83 0.0182 <0.005 <0.005 <0.005 0.0774 0.0367 0.8 388
8/21/2001 6.08 0.00 92.32 0.0046 0.054 0.0031 0.066 0.15 0.083 1.5 0.069
11/15/2001 6.60 0.00 91.80 0.0067 0.046 <0.002 0.045 0.047 0.04 0.48 0.081
2/5/2002 5.81 0.00 92.59 0.0036 0.037 <0.002 0.034 0.075 0.068 1.1 0.98
5/24/2002 3.02 0.00 95.38 <0.002 0.032 <0.002 0,05 0.074 0.064 1.6 0.29
8/29/2002 5.96 0.00 92.44 0.0021 0.033 <0.002 0.028 0.035 0.038 1.6 2
11/5/2002 6.24 0.00 92.16 0.0025 0.04 <0.002 0.031 0.043 0.051 1.1 0.15
2/28/2003 4.58 NT NT
5/14/2003 2.98 0.00 95.42 <0.002 14 22 1.2 6.1 0.16 45 <0.20
8/28/2003 5.99 NT NT
MW-7R 10/8/2008 6.1 0.00 NE <0.001 <0.001 <0.005 0.0012 <0.003 <0.005 <0.10 NA
NE 10/9/2008 6.1 0.00 NE NA NA NA NA NA NA NA 1.9
8/1/2023 6.0 0.00 NE <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 0.37 4.00
12/1/2023 6.0 0.00 NE <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 3.00
free product, not sampled
free product, not sampled
Page 4 of 14
Sample
Number TOC
Elevation
Date
Collected
Depth to
Water (ft)
Product
Thickness
(ft)
Groundwater
Elevation (ft)
MTBE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Total
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
TPH-
GRO
(mg/L)
TPH-
DRO
(mg/L)
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
UST Closure and Excavation Confirmation Samples
RBCA Tier 1 Screening Levels
ISL's
MW-8 12/18/1997 7.30 0.00 91.74 NA 0.13 0.13 0.069 0.6 0.13 NA NA
99.04 7/8/1998 5.17 0.00 93.87 0.004 0.066 0.028 0.069 0.374 0.088 NA NA
10/15/1998 5.15 0.00 93.89 NA 0.086 0.015 0.092 0.28 0.084 NA NA
1/20/1999 4.90 0.00 94.14 <0.005 0.05 <0.005 0.077 0.26 0,067 NA NA
4/19/1999 2.26 0.00 96.78 <0.005 0.044 <0.005 0.12 0.2 0.083 NA NA
7/1/1999 4.61 0.00 94.43 <0.005 0.018 0.012 0.045 0.16 0.043 NA NA
10/11/1999 7.57 0.25 91.66 <0.005 0.024 <0.005 0.045 0.16 0.053 NA NA
2/9/2000 5.65 0.00 93.39 0.0151 0.0123 <0.005 0.0591 0.153 0.161 NA NA
6/6/2000 3.39 0.00 95.65 <0.050 <0.050 <0.050 <0.050 <0.15 <0.050 <5.0 42.4
MW-9 12/18/1997 NT NT NT NT NT NT NT NT NT NT NT
97.84 7/8/1998 3.78 0.00 94.06 <0.005 <0.005 <0.005 <0.005 <0.005 0.005 NA NA
10/15/1998 3.98 0.00 93.86 <0.005 0.0091 <0.005 <0.005 <0.005 <0.005 NA NA
1/20/1999 3.62 0.00 94.22 <0.005 0.0023 <0.005 <0.005 <0.005 <0.005 NA NA
4/19/1999 1.48 0.00 96.36 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
7/1/1999 3.55 0.00 94.29 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
10/11/1999 6.13 0.00 91.71 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
6/6/2000 2.45 0.00 95.39 <0.005 <0.005 <0.005 <0.005 <0.015 <0.005 <0.5 <0.5
Page 5 of 14
Sample
Number TOC
Elevation
Date
Collected
Depth to
Water (ft)
Product
Thickness
(ft)
Groundwater
Elevation (ft)
MTBE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Total
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
TPH-
GRO
(mg/L)
TPH-
DRO
(mg/L)
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
UST Closure and Excavation Confirmation Samples
RBCA Tier 1 Screening Levels
ISL's
MW-10 12/18/1997 NT NT NT NT NT NT NT NT NT NT NT
98.03 7/8/1998 3.75 0.00 94.28 <0.005 0.005 <0.005 0.003 0.017 0.03 NA NA
10/15/1998 3.98 0.00 94.05 <0.005 0.0036 <0.005 <0.005 0.0034 <0.005 NA NA
1/20/1999 3.81 0.00 94.22 <0.005 0.0012 <0.005 0.0024 0.0029 <0.005 NA NA
4/19/1999 1.52 0.00 96.51 <0.005 <0.005 <0.005 0.0045 0.0021 0.0053 NA NA
7/1/1999 3.52 0.00 94.51 <0.005 <0.005 <0.005 0.0031 0.0024 <0.005 NA NA
10/11/1999 6.23 0.00 91.80 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
2/9/2000 NT NT NT NT NT NT NI NT NT NT NT
6/6/2000 2.36 0.00 95.67 <0.002 <0.002 <0.002 <0.002 <0.005 0.0066 <0.5 2.6
8/21/2001 4.76 0.00 93.27 <0.002 0.0032 <0.002 <0.002 <0.002 <0.002 0.16 <0.02
11/15/2001 5.47 0.00 92.56 <0.002 0.0011 <0.002 <0.002 <0.002 <0.002 0.074 0.037
2/5/2002 5.22 0.00 92.81 <0.002 <0.001 <0.002 <0.002 <0.002 0.0022 0.3 0.75
5/24/2002 2.13 0.00 95.90 <0.002 <0.001 <0.002 <0.002 <0.002 <0.002 0.023 <0.02
8/29/2002 5.47 0.00 92.56 <0.002 <0.001 <0.002 <0.002 <0.002 <0.002 0.21 0.027
11/5/2002 5.64 0.00 92.39 <0.002 <0.001 <0.002 <0.002 <0.002 <0.002 0.12 <0.02
2/28/2003 3.59 0.00 94.44 <0.002 <0.001 <0.002 <0.002 <0.002 <0.002 0.05 <0.02
5/14/2003 2.03 0.00 96.00 <0.002 0.0031 <0.002 <0.002 <0.002 <0.002 0.071 0.11
8/28/2003 5.21 0.00 92.82 <0.002 <0.001 <0.002 <0.002 <0.002 <0.002 0.24 <0.02
8/1/2023 6.00 0.00 92.03 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 1.20
12/1/2023 6.00 0.00 92.03 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 1.70
MW-11 12/18/1997 NT NT NT NT NT NT NT NT NT NT NT
98.36 7/8/1998 6.78 0.00 91.58 0.002 0.014 0.185 0.091 0.0466 0.079 NA NA
10/15/1998 7.80 0.00 90.56 <0.005 0.067 0.061 0.077 0.39 0.046 NA NA
1/20/1999 6.43 0.00 91.93 <0.005 0.074 <0.005 0.073 0.33 0.044 NA NA
4/19/1999 4.50 0.00 93.86 <0.005 0.058 <0.005 0.069 0.33 0.068 NA NA
7/1/1999 6.32 0.00 92.04 <0.005 0.035 <0.005 BDL 0.11 0.086 NA NA
10/11/1999 7.12 0.00 91.24 <0.005 0.041 0.0022 0.097 0.27 0.1 NA NA
2/9/2000 6.85 0.00 91.51 <0.005 0.0128 <0.005 0.0511 0.0885 0.168 NA NA
6/6/2000 5.41 0.00 92.95 0.0067 0.0287 <0.005 0.0771 0.166 0.171 4.7 56.2
Page 6 of 14
Sample
Number TOC
Elevation
Date
Collected
Depth to
Water (ft)
Product
Thickness
(ft)
Groundwater
Elevation (ft)
MTBE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Total
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
TPH-
GRO
(mg/L)
TPH-
DRO
(mg/L)
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
UST Closure and Excavation Confirmation Samples
RBCA Tier 1 Screening Levels
ISL's
MW-12 12/18/1997 NT NT NT NT NT NT NT NT NT NT NT
98.48 7/8/1998 4.64 0.00 93.84 0.004 0.091 0.056 0.095 0.598 0.143 NA NA
10/15/1998 4.94 0.00 93.54 0.0072 0.069 0.0045 0.095 0.3 0.15 NA NA
1/20/1999 4.21 0.00 94.27 <0.005 0.061 <0.005 0.059 0.17 0.055 NA NA
4/19/1999 2.28 0.00 96.20 0.0028 0.027 <0.005 0.046 0.14 0.08 NA NA
7/1/1999 4.05 0.00 94.43 <0.005 0.028 <0.005 0.045 0.14 0.059 NA NA
10/11/1999 6.95 0.00 91.53 0.0055 0.033 <0.005 0.031 0.067 0.052 NA NA
2/9/2000 4.69 0.00 93.79 <0.005 0.0139 <0.005 0.0159 0.0193 0.0412 NA NA
6/6/2000 3.35 0.00 95.13 0.0035 0.0364 <0.002 0.0176 0.0635 0.12 1.4 40.7
MW-13 12/18/1997 NT NT NT NT NT NT NT NT NT NT NT
98.44 7/8/1998 6.80 0.00 91.64 0.013 0.314 0.384 0.08 0.624 0.042 NA NA
10/15/1998 6.52 0.00 91.92 0.012 0.17 0.021 0.05 0.069 0.016 NA NA
1/20/1999 6.47 0.00 91.97 0.014 0.27 0.012 0.073 0.085 0.043 NA NA
4/19/1999 4.31 0.00 94.13 0.065 1.7 3.1 0.64 3.6 0.16 NA NA
7/1/1999 6.02 0.00 92.42 0.021 0.54 0.66 0.4 2 <0.005 NA NA
10/11/1999 7.25 0.00 91.19 <0.005 0.84 0.17 0.17 1.3 0.12 NA NA
2/9/2000 7.00 0.00 91.44 0.0057 0.548 0.109 0.078 0.433 <0.005 NA NA
6/6/2000 5.40 0.00 93.04 0.0147 0.644 0.132 0.0906 0.565 0.105 5.1 58.5
MW-14 12/18/1997 NT NT NT NT NT NT NT NT NT NT NT
98.24 7/8/1998 4.97 0.00 93.27 0.011 0.063 0.003 0.05 0.065 0.049 NA NA
10/15/1998 4.77 0.00 93.47 0.007 0.019 <0.005 0.032 0.02 0.031 NA NA
1/20/1999 4.52 0.00 93.72 <0.005 0.02 <0.005 0.029 0.027 <0.005 NA NA
4/19/1999 3.15 0.00 95.09 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
7/1/1999 4.11 0.00 94.13 <0.005 0.0099 <0.005 0.029 0.016 0.027 NA NA
10/11/1999 6.75 0.00 91.49 <0.005 0.0023 <0.005 0.005 <0.005 0.0093 NA NA
2/9/2000 5.31 0.00 92.93 <0.005 <0.005 <0.005 0.03 0.0737 0.063 NA NA
6/6/2000 3.20 0.00 95.04 <0.005 0.0072 <0.005 0.0181 <0.015 0.0413 <0.5 105
Page 7 of 14
Sample
Number TOC
Elevation
Date
Collected
Depth to
Water (ft)
Product
Thickness
(ft)
Groundwater
Elevation (ft)
MTBE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Total
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
TPH-
GRO
(mg/L)
TPH-
DRO
(mg/L)
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
UST Closure and Excavation Confirmation Samples
RBCA Tier 1 Screening Levels
ISL's
MW-15 12/18/1997 NT NT NT NT NT NT NT NT NT NT NT
97.73 7/8/1998 4.50 0.00 93.23 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
10/15/1998 4.55 0.00 93.18 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
1/20/1999 4.24 0.00 93.49 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
4/19/1999 2.15 0.00 95.58 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
7/1/1999 3.87 0.00 93.86 <0.005 0.0015 <0.005 <0.005 <0.005 <0.005 NA NA
10/11/1999 6.33 0.00 91.40 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
2/9/2000 NT NT NT NT NT NT NT NT NT NT NT
6/6/2000 2.90 0.00 94.83 <0.002 <0.002 <0.002 <0.002 <0.006 <0.002 <0.5 <0.5
MW-16 12/18/1997 NT NT NT NT NT NT NT NT NT NT NT
97.80 7/8/1998 4.77 0.00 93.03 0.01 0.233 0.167 0.102 0.461 0.066 NA NA
10/15/1998 5.52 0.00 92.28 <0.005 0.19 0.18 0.097 0.38 <0.005 NA NA
1/20/1999 4.80 0.17 93.13 NT NT NT NT NT NT NA NA
4/19/1999 2.56 0.00 95.24 <0.005 0.083 0.11 0.11 0.41 0.057 NA NA
7/1/1999 4.35 0.00 93.45 <0.005 0.029 0.037 0.033 0.15 0.018 NA NA
10/11/1999 7.85 9.60 97.15 BDL 0.1 0.18 0.4 1.9 0.55 NA NA
2/9/2000 5.60 0.00 92.20 BDL 0.0658 0.0898 0.133 0.575 0.166 NA NA
6/6/2000 3.80 0.00 94.00 <0.005 0.0447 0.0718 0.114 0.505 0.127 4.3 223
8/21/2001 NT NT free product, not sampled
11/15/2001 6.03 0.00 91.77 <0.002 0.0084 0.011 0.055 0.19 0.034 0.69 0.22
2/5/2002 5.87 0.00 91.93 <0.002 0.0066 0.0076 0.057 0.19 0.039 0.67 0.095
5/24/2002 2.84 0.00 94.96 <0.002 0.0014 <0.002 0.014 0.048 0.022 1.3 1.9
8/29/2002 5.85 0.00 91.95 <0.002 0.0025 0.0027 0.027 0.079 0.023 1.5 1.6
11/5/2002 5.96 0.00 91.84 <0.002 0,002 0.0022 0.027 0.069 0.022 1.4 0.51
2/28/2003 4.20 NT NT
5/14/2003 2.90 0.00 94.90 <0.002 4.4 8.7 0.85 4.5 0.18 26 3.9
8/28/2003 5.60 NT NT
8/1/2023 6.00 0 91.80 <0.005 0.021 <0.012 <0.012 <0.012 0.023 1.17 23.40
12/1/2023 6.00 0 91.80 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 7.00
duplicate 12/1/2023 6.00 0 91.80 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 4.00
9/25/2024 4.99 0 92.81 <0.008 0.061 <0.012 <0.012 <0.038 <0.012 5.32 120
*10/30/2024 NM 0 NM <0.008 0.015 <0.012 <0.012 <0.038 <0.012 <0.125 3.7
**10/30/24 NM 0 NM <0.002 0.012 <0.002 <0.002 <0.006 0.005 0.5 1.42
free product, not sampled
free product, not sampled
Page 8 of 14
Sample
Number TOC
Elevation
Date
Collected
Depth to
Water (ft)
Product
Thickness
(ft)
Groundwater
Elevation (ft)
MTBE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Total
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
TPH-
GRO
(mg/L)
TPH-
DRO
(mg/L)
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
UST Closure and Excavation Confirmation Samples
RBCA Tier 1 Screening Levels
ISL's
MW-17 12/18/1997 NT NT NT NT NT NT NT NT NT NT NT
93.97 7/8/1998 4.53 0.00 89.44 0.0075 0.0474 0.0062 0.0281 0.0326 0.0111 NA NA
10/15/1998 4.60 0.00 89.37 0.021 0.062 0.0042 0.022 0.022 <0.005 NA NA
1/20/1999 3.95 0.00 90.02 <0.002 0.033 <0.005 0.028 0.021 <0.005 NA NA
4/19/1999 2.35 0.00 91.62 <0.002 0.023 <0.005 0.029 0.019 <0.005 NA NA
7/1/1999 4.13 0.00 89.84 0.0032 0.024 0.012 0.023 0.022 0.012 NA NA
10/11/1999 5.75 0.00 88.22 0.0075 0.012 <0.005 0.0055 0.0027 <0.005 NA NA
2/9/2000 4.05 0.00 89.92 0.0048 BDL 0.0025 <0.005 0.0073 0.0038 NA NA
6/6/2000 3.90 0.00 90.07 0.0046 0.0242 <0.002 0.0168 0.0101 0.0057 <0.5 1.9
8/21/2001 5.26 0.00 88.71 0.0064 0.027 <0.002 0.026 0.0062 0.0021 0.41 0.026
11/15/2001 4.99 0.00 88.98 0.0071 0.019 <0.002 0.02 0.0058 0.0024 0.18 0.033
2/5/2002 4.33 0.00 89.64 0.004 0.021 <0.002 0.031 0.027 0.0058 0.25 0.031
5/24/2002 2.83 0.00 91.14 0.0025 0.015 <0.002 0.039 0.022 0.0069 0.74 0.027
8/29/2002 5.35 0.00 88.62 0.0041 0.01 <0.002 0.03 0.0076 0.0044 0.46 0.053
11/5/2002 4.81 0.00 89.16 0.0031 0.01 <0.002 0.029 0.0057 0.0036 0.37 0.047
2/28/2003 3.14 0.00 90.83 0.0022 0.021 <0.002 0.053 0.024 0.01 0.36 <0.02
5/14/2003 2.37 0.00 91.60 <0.02 0.015 <0.02 0.045 0.022 <0.02 0.67 <0.20
8/28/2003 5.11 0.00 88.86 0.0022 0.011 <0.002 0.036 0.0078 <0.002 0.55 <0.02
MW-17R 10/8/2008 9.49 0.00 NT <0.001 0.0032 <0.005 0.003 <0.003 <0.005 <0.10 2
NE 5/19/2010 NG 0.00 NT <0.001 0.002 <0.001 0.001 <0.003 <0.002 <0.05 <1
1/21/2014 NT NT NT NT NT NT NT NT NT NT NT
11/9/2015 10.25 0.00 0.00 <0.005 <0.002 <0.005 <0.005 <0.005 <0.005 <0.05 7.4
7/31/2017 6.90 0.00 0.00 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 2.1
8/1/2023 6.00 0.00 0.00 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 0.37 1.30
MW-18 12/18/1997 NT NT NT NT NT NT NT NT NT NT NT
94.15 7/8/1998 NG 0.00 NT <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
10/15/1998 4.48 0.00 89.67 <0.005 0.0099 <0.005 0.014 0.014 0.0072 NA NA
1/20/1999 3.60 0.00 90.55 <0.005 0.0048 <0.005 0.012 0.013 0.0055 NA NA
4/19/1999 1.78 0.00 92.37 <0.005 0.0036 <0.005 0.018 0.019 0.0077 NA NA
7/1/1999 3.72 0.00 90.43 <0.005 0.0047 0.0046 0.016 0.044 0.022 NA NA
10/11/1999 5.16 0.00 88.99 <0.005 0.0075 <0.005 0.0093 0.0044 <0.005 NA NA
2/9/2000 3.71 0.00 90.44 <0.005 0.0044 <0.005 0.0085 0.0158 <0.005 NA NA
6/6/2000 3.35 0.00 90.80 <0.002 <0.002 <0.002 0.0034 <0.006 0.003 <0.5 <0.5
Page 9 of 14
Sample
Number TOC
Elevation
Date
Collected
Depth to
Water (ft)
Product
Thickness
(ft)
Groundwater
Elevation (ft)
MTBE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Total
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
TPH-
GRO
(mg/L)
TPH-
DRO
(mg/L)
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
UST Closure and Excavation Confirmation Samples
RBCA Tier 1 Screening Levels
ISL's
MW-19 12/18/1997 NT NT NT NT NT NT NT NT NT NT NT
98.79 7/8/1998 NT NT NT NT NT NT NT NT NT NT NT
10/15/1998 4.52 0.00 94.27 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
1/20/1999 4.20 0.00 94.59 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
4/19/1999 1.71 0.00 97.08 <0.005 <0.005 <0.005 <0.005 0.0021 0.011 NA NA
7/1/1999 4.07 0.00 94.72 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
10/11/1999 6.80 0.00 91.99 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
2/9/2000 3.71 0.00 95.08 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
6/6/2000 2.43 0.00 96.36 <0.002 <0.002 <0.002 <0.002 <0.006 <0.002 <0.5 <0.5
MW-20 12/18/1997 NT NT NT NT NT NT NT NT NT NT NT
96.90 7/8/1998 NT NT NT NT NT NT NT NT NT NT NT
10/15/1998 NT NT NT NT NT NT NT NT NT NT NT
1/20/1999 NT NT NT NT NT NT NT NT NT NT NT
4/19/1999 3.41 0.00 93.49 <0.005 0.013 0.044 0.084 0.28 0.022 NA NA
7/1/1999 5.16 0.00 91.74 <0.005 0.0085 0.1 0.027 0.12 0.006 NA NA
10/11/1999 6.83 0.00 90.07 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
2/9/2000 5.71 0.00 91.19 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 NA NA
6/6/2000 4.32 0.00 92.58 <0.002 <0.002 <0.002 <0.002 <0.006 <0.002 <0.5 <0.5
Page 10 of 14
Sample
Number TOC
Elevation
Date
Collected
Depth to
Water (ft)
Product
Thickness
(ft)
Groundwater
Elevation (ft)
MTBE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Total
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
TPH-
GRO
(mg/L)
TPH-
DRO
(mg/L)
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
UST Closure and Excavation Confirmation Samples
RBCA Tier 1 Screening Levels
ISL's
MW-21 12/18/1997 NT NT NT NT NT NT NT NT NT NT NT
97.06 7/8/1998 NT NT NT NT NT NT NT NT NT NT NT
10/15/1998 NT NT NT NT NT NT NT NT NT NT NT
1/20/1999 NT NT NT NT NT NT NT NT NT NT NT
4/19/1999 4.24 0.00 92.82 <0.005 0.09 <0.005 0.062 0.21 0.067 NA NA
7/1/1999 6.06 0.00 91.00 0.0036 0.042 <0.005 0.036 0.074 0.052 NA NA
10/11/1999 7.11 0.00 89.95 0.006 0.1 <0.005 0.016 0.013 0.019 NA NA
2/9/2000 6.53 0.00 90.53 0.0053 0.0144 <0.005 <0.005 <0.005 <0.005 NA NA
6/6/2000 5.30 0.00 91.76 0.0046 0.013 <0.002 0.0057 0.009 0.0136 <0.5 4.8
8/21/2001 5.29 0.00 91.77 0.0033 0.011 <0.002 0.0031 0.011 0.0082 0.25 0.035
11/15/2001 5.03 0.00 92.03 0.0034 <0.001 <0.002 <0.002 <0.002 <0.002 0.034 <0.020
2/5/2002 6.18 0.00 90.88 <0.002 0.0036 <0.002 0.0022 0.002 <0.002 0,065 <0.020
5/24/2002 3.82 0.00 93.24 0.002 0.04 <0.002 0.019 0.033 0.0055 0.18 0.022
8/29/2002 6.25 0.00 90.81 <0.002 0.0043 <0.002 0.0044 0.00334 0.0026 0.18 0.061
11/5/2002 6.32 0.00 90.74 <0.002 0.0056 <0.002 0.0075 0.0072 <0.002 0.14 <0.020
2/28/2003 4.84 0.00 92.22 <0.002 0.0038 <0.002 0.0047 0.005 <0.002 0.03 <0.020
5/14/2003 3.74 0.00 93.32 <0.040 0.24 0.12 <0.040 <0.040 <0.040 <0.40 <0.40
8/28/2003 5.89 0.00 91.17 <0.002 0.22 0.025 0.017 0.02 0.0086 0.51 <0.020
5/19/2010 NG 0.00 NT <0.001 0.087 0.002 0.017 0.005 <0.002 0.156 <1
4/17/2012 6.2 0.00 90.86 <0.001 0.0022 0.0004 0.0013 0.0005 0.0008 21.2 <1
Page 11 of 14
Sample
Number TOC
Elevation
Date
Collected
Depth to
Water (ft)
Product
Thickness
(ft)
Groundwater
Elevation (ft)
MTBE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Total
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
TPH-
GRO
(mg/L)
TPH-
DRO
(mg/L)
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
UST Closure and Excavation Confirmation Samples
RBCA Tier 1 Screening Levels
ISL's
MW-22 12/18/1997 NT NT NT NT NT NT NT NT NT NT NT
98.08 7/8/1998 NT NT NT NT NT NT NT NT NT NT NT
10/15/1998 NT NT NT NT NT NT NT NT NT NT NT
1/20/1999 NT NT NT NT NT NT NT NT NT NT NT
4/19/1999 5.76 0.00 92.32 <0.005 0.071 <0.005 0.091 0.08 0.053 NA NA
7/1/1999 7.72 0.00 90.36 <0.005 0.03 <0.005 0.081 0.091 0.038 NA NA
10/11/1999 7.24 0.00 90.84 <0.005 0.0043 0.033 <0.005 <0.005 <0.005 NA NA
2/9/2000 8.00 0.00 90.08 <0.005 0.0038 0.0189 0.0048 0.0098 0.0038 NA NA
6/6/2000 7.00 0.00 91.08 0.0029 0.0269 <0.002 0.046 0.0477 0.0685 0.6 32.4
8/21/2001 8.28 0.00 89.80 <0.002 0.022 <0.002 0.068 0.021 0.072 0.7 0.03
11/15/2001 8.49 0.00 89.59 <0.002 0.015 <0.002 0.015 <0.002 0.0061 0.11 <0.020
2/5/2002 7.97 0.00 90.11 <0.002 0.0078 <0.002 <0.002 <0.002 0.0089 0.062 <0.020
5/24/2002 5.77 0.00 92.31 <0.002 0.0062 <0.002 <0.002 <0.002 0.0026 0.039 <0.020
8/29/2002 7.78 0.00 90.30 <0.002 0.007 <0.002 <0.002 <0.002 <0.002 0.12 0.021
11/5/2002 7.64 0.00 90.44 <0.002 <0.001 <0.002 <0.002 <0.002 <0.002 0.047 <0.020
2/28/2003 6.40 0.00 91.68 <0.002 <0.001 <0.002 <0.002 <0.002 <0.002 <0.020 <0.020
5/14/2003 5.31 0.00 92.77 <0.002 <0.001 <0.002 <0.002 <0.002 <0.002 <0.020 <0.020
8/28/2003 7.47 0.00 90.61 <0.002 <0.001 <0.002 <0.002 <0.002 <0.002 0.062 <0.020
8/1/2023 6.00 0.00 92.08 <0.005 0.049 <0.012 <0.012 <0.012 <0.012 <0.125 1.90
12/1/2023 6.00 0.00 92.08 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 2.40
MW-23 12/18/1997 NT NT NT NT NT NT NT NT NT NT NT
97.36 7/8/1998 NT NT NT NT NT NT NT NT NT NT NT
10/15/1998 NT NT NT NT NT NT NT NT NT NT NT
1/20/1999 NT NT NT NT NT NT NT NT NT NT NT
4/19/1999 4.02 0.00 93.34 <0.005 0.12 0.023 0,13 0.59 0.12 NA NA
7/1/1999 6.66 0.00 90.70 0.015 0.094 0.0095 0.085 0.22 0.13 NA NA
10/11/1999 6.69 0.00 90.67 <0.005 0.1 <0.005 0.059 0.17 0.092 NA NA
2/9/2000 6.20 0.00 91.16 <0.005 0.0715 <0.005 0.0793 0.238 0.146 NA NA
6/6/2000 5.39 1.00 92.72 0.0096 0.0335 <0.002 0.0381 0.114 0.148 2.4 32.4
Page 12 of 14
Sample
Number TOC
Elevation
Date
Collected
Depth to
Water (ft)
Product
Thickness
(ft)
Groundwater
Elevation (ft)
MTBE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Total
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
TPH-
GRO
(mg/L)
TPH-
DRO
(mg/L)
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
UST Closure and Excavation Confirmation Samples
RBCA Tier 1 Screening Levels
ISL's
MW-24 12/12/2001 NG 0.00 0.00 <0.002 0.0031 0.0052 0.065 0.076 0.016 0.5 0.0053
MW-24R 10/8/2008 6.75 0.00 0.00 <0.001 <0.001 <0.005 <0.001 <0.003 <0.005 <0.10 NA
NE 10/9/2008 6.75 0.00 0.00 NA NA NA NA NA NA NA 0.21
1/21/2014 NT NT NT NT NT NT NT NT NT NT NT
11/9/2015 8.52 0.00 0.00 <0.005 <0.002 <0.005 <0.005 <0.005 <0.005 <0.05 1.2
7/31/2017 5.16 0.00 0.00 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0
8/1/2023 6.00 0.00 0.00 <0.005 0.049 <0.012 <0.012 <0.012 <0.012 <0.125 1.00
MW-25 12/12/2001 NG 0.00 0.00 0.0023 0.1 <0.002 0.13 0.14 0.063 0.79 0.026
NE 2/5/2002 6.02 0.00 0.00 0.0038 0.14 <0.002 0.13 0.13 0.051 0.83 0.024
5/24/2002 4.52 0.00 0.00 0.0029 0.15 <0.002 0.14 0.16 0.051 1 0.027
8/29/2002 6.09 0.00 0.00 <0.002 0.079 <0.002 0.11 0.08 0.039 1.1 0.07
11/5/2002 6.08 0.00 0.00 <0.002 0.083 0.0029 0.12 0.099 0.041 1.4 0.036
2/28/2003 4.93 0.00 0.00 <0.002 0.074 0.0028 0.13 0.1 0.028 0.68 <0.020
5/14/2003 4.35 0.00 0.00 <0.040 1.5 0.34 0.19 0.22 <0.04 3.3 <0.40
8/28/2003 5.86 0.00 0.00 <0.002 4.1 0.88 0.18 0.22 0.066 6.70 <0.02
MW-25R 10/8/2008 7.92 0.00 0.00 <0.001 0.0013 <0.005 0.0056 <0.003 <0.005 <0.10 0.61
NE 5/19/2010 NG 0.00 0.00 <0.001 <0.001 <0.001 0.003 <0.003 0.003 <0.05 <1
4/17/2012 6.11 0.00 0.00 <0.001 <0.001 <0.001 0.0003 <0.001 <0.001 2.1 <1
1/21/2014 7.98 0.00 0.00 <0.001 <0.001 <0.001 0.001 <0.003 0.002 0.079 <1
11/9/2015 7.56 0.00 0.00 <0.005 <0.002 <0.005 <0.005 <0.005 <0.005 <0.05 <1
7/31/2017 6.83 0.00 0.00 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0
8/1/2023 6.00 0.00 0.00 <0.005 0.049 <0.012 <0.012 <0.012 <0.012 <0.125 1.30
MW-26 12/12/2001 NG 0.00 0.00 0.0023 0.0072 <0.002 <0.002 <0.002 <0.002 0.09 <0.02
MW-26R 10/8/2008 10.68 0.00 0.00 <0.001 <0.001 <0.005 <0.001 <0.003 <0.005 <0.10 0.32
NE 1/21/2014 NT NT NT NT NT NT NT NT NT NT NT
11/9/2015 10.72 0.00 0.00 <0.005 <0.002 <0.005 <0.005 <0.005 <0.005 <0.05 <1
7/31/2017 10.51 0.00 0.00 <0.005 <0.005 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0
8/1/2023 6.00 0.00 0.00 <0.005 0.049 <0.012 <0.012 <0.012 <0.012 <0.125 <1.0
Page 13 of 14
Sample
Number TOC
Elevation
Date
Collected
Depth to
Water (ft)
Product
Thickness
(ft)
Groundwater
Elevation (ft)
MTBE
(mg/L)
Benzene
(mg/L)
Toluene
(mg/L)
Ethyl-
benzene
(mg/L)
Total
Xylenes
(mg/L)
Naph-
thalene
(mg/L)
TPH-
GRO
(mg/L)
TPH-
DRO
(mg/L)
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
UST Closure and Excavation Confirmation Samples
RBCA Tier 1 Screening Levels
ISL's
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
ISL = Initial Screening Level
MW-7R, MW-17R, 24R, 25R and 26R are replacement wells for MW-7, MW-17, 24, 25 and 26 at the same locations
NG = Not Gauged
NT = Not Tested
NE= No elevation data available
NA = Not Analyzed
BDL = below detection limit
* MW-16 (10/30/24) analyzed by Chemtech Ford.
** MW-16 (10/30/24) analyzed by Utility Testing
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: 24I2241
Project: Sinclair Truck Stop
10/10/2024
Amended
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 18
Rockwell Solutions, Inc
718 East Bridger Lane
Elk Ridge, UT 84651
Project: Sinclair Truck Stop
Project Manager: Dave Hansen
Laboratory ID Sample Name
24I2241-01 B-1,9'
24I2241-02 B-2, 9'
24I2241-03 B-3, 9'
24I2241-04 B-4, 4-6'
24I2241-05 B-4, 9'
24I2241-06 B-5, 7'
24I2241-07 B-6, 9'
24I2241-08 B-6, 10-12'
24I2241-09 B-7, 7-8'
24I2241-10 B-7, 14-15'
24I2241-11 B-8, 4-6'
24I2241-12 B-8, 9-10'
24I2241-13 MW-16
Amended Report Narrative

Report Changes:
DRO was added to 24I2241-13
www.ChemtechFord.com
Project Name: Sinclair Truck Stop CtF WO#: 24I2241
Page 2 of 18
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
Amended Amended
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
9/25/24 14:41 @ 5.3 °C
10/10/2024
Sinclair Truck Stop
Sample ID: B-1,9'
Lab ID: 24I2241-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/25/24 10:10
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/27/249/26/240.1 CTF800088.8Total Solids
MBTEXn
mg/kg dry 9/27/249/27/240.009 EPA 8260D/5030BNDBenzene
mg/kg dry 9/27/249/27/240.02 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 9/27/249/27/240.01 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 9/27/249/27/240.02 EPA 8260D/5030BNDNaphthalene
mg/kg dry 9/27/249/27/240.02 EPA 8260D/5030BNDToluene
mg/kg dry 9/27/249/27/240.07 EPA 8260D/5030BNDXylenes, total
mg/kg dry 9/27/249/27/240.24 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/240.24 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/240.24 EPA 8260D/5030BNDC9-C10 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/240.24 EPA 8260D/5030BNDC9-C10 Alkyl Benzenes
Gasoline Range
mg/kg dry 9/27/249/27/240.237 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 9/26/249/26/2456EPA 8015 CNDDiesel Range Organics
Project Name: Sinclair Truck Stop CtF WO#: 24I2241
www.ChemtechFord.com
Page 3 of 17Page 3 of 18
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
Amended Amended
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
9/25/24 14:41 @ 5.3 °C
10/10/2024
Sinclair Truck Stop
Sample ID: B-2, 9'
Lab ID: 24I2241-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/25/24 10:40
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/27/249/26/240.1 CTF800074.2Total Solids
MBTEXn
mg/kg dry 9/27/249/27/240.13 EPA 8260D/5030BNDBenzene
mg/kg dry 9/27/249/27/240.34 EPA 8260D/5030BNDEthylbenzene
mg/kg dry J-LOW-C9/27/249/27/240.20 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 9/27/249/27/240.34 EPA 8260D/5030BNDNaphthalene
mg/kg dry 9/27/249/27/240.34 EPA 8260D/5030BNDToluene
mg/kg dry 9/27/249/27/241.01 EPA 8260D/5030BNDXylenes, total
mg/kg dry 9/27/249/27/243.37 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/243.37 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/243.37 EPA 8260D/5030BNDC9-C10 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/243.37 EPA 8260D/5030BNDC9-C10 Alkyl Benzenes
Gasoline Range
mg/kg dry 9/27/249/27/243.37 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 9/26/249/26/2467EPA 8015 CNDDiesel Range Organics
Project Name: Sinclair Truck Stop CtF WO#: 24I2241
www.ChemtechFord.com
Page 4 of 17Page 4 of 18
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
Amended Amended
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
9/25/24 14:41 @ 5.3 °C
10/10/2024
Sinclair Truck Stop
Sample ID: B-3, 9'
Lab ID: 24I2241-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/25/24 11:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/27/249/26/240.1 CTF800074.3Total Solids
MBTEXn
mg/kg dry 9/27/249/27/240.01 EPA 8260D/5030B0.02Benzene
mg/kg dry 9/27/249/27/240.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 9/27/249/27/240.02 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 9/27/249/27/240.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 9/27/249/27/240.03 EPA 8260D/5030BNDToluene
mg/kg dry 9/27/249/27/240.10 EPA 8260D/5030BNDXylenes, total
mg/kg dry 9/27/249/27/240.33 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/240.33 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/240.33 EPA 8260D/5030BNDC9-C10 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/240.33 EPA 8260D/5030BNDC9-C10 Alkyl Benzenes
Gasoline Range
mg/kg dry 9/27/249/27/240.330 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 9/26/249/26/2467EPA 8015 CNDDiesel Range Organics
Project Name: Sinclair Truck Stop CtF WO#: 24I2241
www.ChemtechFord.com
Page 5 of 17Page 5 of 18
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
Amended Amended
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
9/25/24 14:41 @ 5.3 °C
10/10/2024
Sinclair Truck Stop
Sample ID: B-4, 4-6'
Lab ID: 24I2241-04Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/25/24 11:10
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/27/249/26/240.1 CTF800074.7Total Solids
MBTEXn
mg/kg dry 9/27/249/27/240.01 EPA 8260D/5030BNDBenzene
mg/kg dry 9/27/249/27/240.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 9/27/249/27/240.02 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 9/27/249/27/240.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 9/27/249/27/240.03 EPA 8260D/5030BNDToluene
mg/kg dry 9/27/249/27/240.10 EPA 8260D/5030BNDXylenes, total
mg/kg dry 9/27/249/27/240.32 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/240.32 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/240.32 EPA 8260D/5030BNDC9-C10 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/240.32 EPA 8260D/5030BNDC9-C10 Alkyl Benzenes
Gasoline Range
mg/kg dry 9/27/249/27/240.322 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 9/26/249/26/2467EPA 8015 CNDDiesel Range Organics
Project Name: Sinclair Truck Stop CtF WO#: 24I2241
www.ChemtechFord.com
Page 6 of 17Page 6 of 18
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
Amended Amended
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
9/25/24 14:41 @ 5.3 °C
10/10/2024
Sinclair Truck Stop
Sample ID: B-4, 9'
Lab ID: 24I2241-05Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/25/24 11:20
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/27/249/26/240.1 CTF800090.1Total Solids
MBTEXn
mg/kg dry 9/27/249/27/240.11 EPA 8260D/5030BNDBenzene
mg/kg dry 9/27/249/27/240.28 EPA 8260D/5030BNDEthylbenzene
mg/kg dry J-LOW-C9/27/249/27/240.17 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 9/27/249/27/240.28 EPA 8260D/5030BNDNaphthalene
mg/kg dry 9/27/249/27/240.28 EPA 8260D/5030BNDToluene
mg/kg dry 9/27/249/27/240.83 EPA 8260D/5030BNDXylenes, total
mg/kg dry 9/27/249/27/242.77 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/242.77 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/242.77 EPA 8260D/5030B9.33C9-C10 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/242.77 EPA 8260D/5030B4.99C9-C10 Alkyl Benzenes
Gasoline Range
mg/kg dry 9/27/249/27/242.77 EPA 8260B/C 5035A/[CALC]14.3Gasoline Range Organics
Diesel Range
mg/kg dry 9/26/249/26/2455EPA 8015 C3000Diesel Range Organics
Project Name: Sinclair Truck Stop CtF WO#: 24I2241
www.ChemtechFord.com
Page 7 of 17Page 7 of 18
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
Amended Amended
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
9/25/24 14:41 @ 5.3 °C
10/10/2024
Sinclair Truck Stop
Sample ID: B-5, 7'
Lab ID: 24I2241-06Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/25/24 12:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/27/249/26/240.1 CTF800089.3Total Solids
MBTEXn
mg/kg dry 9/27/249/27/240.11 EPA 8260D/5030BNDBenzene
mg/kg dry 9/27/249/27/240.28 EPA 8260D/5030B1.42Ethylbenzene
mg/kg dry J-LOW-C9/27/249/27/240.17 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 9/27/249/27/240.28 EPA 8260D/5030B0.29Naphthalene
mg/kg dry 9/27/249/27/240.28 EPA 8260D/5030BNDToluene
mg/kg dry 9/27/249/27/240.84 EPA 8260D/5030B5.56Xylenes, total
mg/kg dry 9/27/249/27/242.80 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/242.80 EPA 8260D/5030B4.30C7-C8 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/242.80 EPA 8260D/5030B9.23C9-C10 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/242.80 EPA 8260D/5030B45.5C9-C10 Alkyl Benzenes
Gasoline Range
mg/kg dry 9/27/249/27/242.80 EPA 8260B/C 5035A/[CALC]66.3Gasoline Range Organics
Diesel Range
mg/kg dry 9/26/249/26/2456EPA 8015 C534Diesel Range Organics
Project Name: Sinclair Truck Stop CtF WO#: 24I2241
www.ChemtechFord.com
Page 8 of 17Page 8 of 18
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
Amended Amended
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
9/25/24 14:41 @ 5.3 °C
10/10/2024
Sinclair Truck Stop
Sample ID: B-6, 9'
Lab ID: 24I2241-07Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/25/24 12:15
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/27/249/26/240.1 CTF800087.5Total Solids
MBTEXn
mg/kg dry 9/27/249/27/240.11 EPA 8260D/5030BNDBenzene
mg/kg dry 9/27/249/27/240.29 EPA 8260D/5030BNDEthylbenzene
mg/kg dry J-LOW-C9/27/249/27/240.17 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 9/27/249/27/240.29 EPA 8260D/5030B0.56Naphthalene
mg/kg dry 9/27/249/27/240.29 EPA 8260D/5030BNDToluene
mg/kg dry 9/27/249/27/240.86 EPA 8260D/5030BNDXylenes, total
mg/kg dry 9/27/249/27/242.86 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/242.86 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/242.86 EPA 8260D/5030B4.60C9-C10 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/242.86 EPA 8260D/5030B13.6C9-C10 Alkyl Benzenes
Gasoline Range
mg/kg dry 9/27/249/27/242.86 EPA 8260B/C 5035A/[CALC]18.8Gasoline Range Organics
Diesel Range
mg/kg dry 9/26/249/26/2457EPA 8015 C2950Diesel Range Organics
Project Name: Sinclair Truck Stop CtF WO#: 24I2241
www.ChemtechFord.com
Page 9 of 17Page 9 of 18
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
Amended Amended
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
9/25/24 14:41 @ 5.3 °C
10/10/2024
Sinclair Truck Stop
Sample ID: B-6, 10-12'
Lab ID: 24I2241-08Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/25/24 12:10
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/27/249/26/240.1 CTF800072.8Total Solids
MBTEXn
mg/kg dry 9/27/249/27/240.14 EPA 8260D/5030BNDBenzene
mg/kg dry 9/27/249/27/240.34 EPA 8260D/5030BNDEthylbenzene
mg/kg dry J-LOW-C9/27/249/27/240.21 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 9/27/249/27/240.34 EPA 8260D/5030BNDNaphthalene
mg/kg dry 9/27/249/27/240.34 EPA 8260D/5030BNDToluene
mg/kg dry 9/27/249/27/241.03 EPA 8260D/5030BNDXylenes, total
mg/kg dry 9/27/249/27/243.43 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/243.43 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/243.43 EPA 8260D/5030BNDC9-C10 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/243.43 EPA 8260D/5030B4.10C9-C10 Alkyl Benzenes
Gasoline Range
mg/kg dry 9/27/249/27/243.43 EPA 8260B/C 5035A/[CALC]4.10Gasoline Range Organics
Diesel Range
mg/kg dry 9/26/249/26/2469EPA 8015 C485Diesel Range Organics
Project Name: Sinclair Truck Stop CtF WO#: 24I2241
www.ChemtechFord.com
Page 10 of 17Page 10 of 18
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
Amended Amended
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
9/25/24 14:41 @ 5.3 °C
10/10/2024
Sinclair Truck Stop
Sample ID: B-7, 7-8'
Lab ID: 24I2241-09Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/25/24 12:35
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/27/249/26/240.1 CTF800092.3Total Solids
MBTEXn
mg/kg dry 9/27/249/27/240.11 EPA 8260D/5030BNDBenzene
mg/kg dry 9/27/249/27/240.27 EPA 8260D/5030BNDEthylbenzene
mg/kg dry J-LOW-C9/27/249/27/240.16 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 9/27/249/27/240.27 EPA 8260D/5030B0.37Naphthalene
mg/kg dry 9/27/249/27/240.27 EPA 8260D/5030BNDToluene
mg/kg dry 9/27/249/27/240.81 EPA 8260D/5030BNDXylenes, total
mg/kg dry 9/27/249/27/242.71 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/242.71 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/242.71 EPA 8260D/5030B4.60C9-C10 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/242.71 EPA 8260D/5030B11.5C9-C10 Alkyl Benzenes
Gasoline Range
mg/kg dry 9/27/249/27/242.71 EPA 8260B/C 5035A/[CALC]16.5Gasoline Range Organics
Diesel Range
mg/kg dry 9/26/249/26/2454EPA 8015 C3920Diesel Range Organics
Project Name: Sinclair Truck Stop CtF WO#: 24I2241
www.ChemtechFord.com
Page 11 of 17Page 11 of 18
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
Amended Amended
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
9/25/24 14:41 @ 5.3 °C
10/10/2024
Sinclair Truck Stop
Sample ID: B-7, 14-15'
Lab ID: 24I2241-10Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/25/24 12:40
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/27/249/26/240.1 CTF800074.0Total Solids
MBTEXn
mg/kg dry 9/27/249/27/240.01 EPA 8260D/5030BNDBenzene
mg/kg dry 9/27/249/27/240.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 9/27/249/27/240.02 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 9/27/249/27/240.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 9/27/249/27/240.03 EPA 8260D/5030BNDToluene
mg/kg dry 9/27/249/27/240.10 EPA 8260D/5030BNDXylenes, total
mg/kg dry 9/27/249/27/240.34 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/240.34 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/240.34 EPA 8260D/5030BNDC9-C10 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/240.34 EPA 8260D/5030BNDC9-C10 Alkyl Benzenes
Gasoline Range
mg/kg dry 9/27/249/27/240.338 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 9/26/249/26/2468EPA 8015 CNDDiesel Range Organics
Project Name: Sinclair Truck Stop CtF WO#: 24I2241
www.ChemtechFord.com
Page 12 of 17Page 12 of 18
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
Amended Amended
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
9/25/24 14:41 @ 5.3 °C
10/10/2024
Sinclair Truck Stop
Sample ID: B-8, 4-6'
Lab ID: 24I2241-11Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/25/24 13:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/27/249/26/240.1 CTF800082.8Total Solids
MBTEXn
mg/kg dry 9/27/249/27/240.01 EPA 8260D/5030BNDBenzene
mg/kg dry 9/27/249/27/240.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 9/27/249/27/240.02 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 9/27/249/27/240.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 9/27/249/27/240.03 EPA 8260D/5030BNDToluene
mg/kg dry 9/27/249/27/240.09 EPA 8260D/5030BNDXylenes, total
mg/kg dry 9/27/249/27/240.30 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/240.30 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/240.30 EPA 8260D/5030BNDC9-C10 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/240.30 EPA 8260D/5030BNDC9-C10 Alkyl Benzenes
Gasoline Range
mg/kg dry 9/27/249/27/240.299 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 9/26/249/26/2460EPA 8015 CNDDiesel Range Organics
Project Name: Sinclair Truck Stop CtF WO#: 24I2241
www.ChemtechFord.com
Page 13 of 17Page 13 of 18
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
Amended Amended
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
9/25/24 14:41 @ 5.3 °C
10/10/2024
Sinclair Truck Stop
Sample ID: B-8, 9-10'
Lab ID: 24I2241-12Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/25/24 13:15
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%9/27/249/26/240.1 CTF800090.8Total Solids
MBTEXn
mg/kg dry 9/27/249/27/240.11 EPA 8260D/5030BNDBenzene
mg/kg dry 9/27/249/27/240.28 EPA 8260D/5030BNDEthylbenzene
mg/kg dry J-LOW-C9/27/249/27/240.17 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/kg dry 9/27/249/27/240.28 EPA 8260D/5030BNDNaphthalene
mg/kg dry 9/27/249/27/240.28 EPA 8260D/5030BNDToluene
mg/kg dry 9/27/249/27/240.83 EPA 8260D/5030BNDXylenes, total
mg/kg dry 9/27/249/27/242.75 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/242.75 EPA 8260D/5030BNDC7-C8 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/242.75 EPA 8260D/5030B5.15C9-C10 Aliphatic hydrocarbons
mg/kg dry 9/27/249/27/242.75 EPA 8260D/5030B10.4C9-C10 Alkyl Benzenes
Gasoline Range
mg/kg dry 9/27/249/27/242.75 EPA 8260B/C 5035A/[CALC]15.5Gasoline Range Organics
Diesel Range
mg/kg dry 9/26/249/26/2455EPA 8015 C1830Diesel Range Organics
Project Name: Sinclair Truck Stop CtF WO#: 24I2241
www.ChemtechFord.com
Page 14 of 17Page 14 of 18
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
Amended Amended
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
9/25/24 14:41 @ 5.3 °C
10/10/2024
Sinclair Truck Stop
Sample ID: MW-16
Lab ID: 24I2241-13Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 9/25/24 0:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 9/27/249/27/240.005 EPA 8260D/5030B0.061Benzene
mg/L 9/27/249/27/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 9/27/249/27/240.008 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 9/27/249/27/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 9/27/249/27/240.012 EPA 8260D/5030BNDToluene
mg/L 9/27/249/27/240.038 EPA 8260D/5030BNDXylenes, total
mg/L 9/27/249/27/240.125 EPA 8260D/5030BNDC5-C6 Aliphatic hydrocarbons
mg/L 9/27/249/27/240.125 EPA 8260D/5030B0.157C7-C8 Aliphatic hydrocarbons
mg/L 9/27/249/27/240.125 EPA 8260D/5030B3.59C9-C10 Aliphatic hydrocarbons
mg/L 9/27/249/27/240.125 EPA 8260D/5030B1.51C9-C10 Alkyl Benzenes
Gasoline Range
mg/L 9/27/249/27/240.125 EPA 8260B/C /5030A/[CALC]5.32Gasoline Range Organics
Diesel Range
mg/L 10/2/2410/2/2410.0 EPA 8015 C120Diesel Range Organics
Semi-Volatile Compounds
ug/L SPH10/8/2410/4/2410EPA 8270E/35111950C11-12 Aliphatic hydrocarbons
ug/L SPH10/8/2410/4/2410EPA 8270E/35116370C13-C16 Aliphatic hydrocarbons
ug/L SPH10/8/2410/4/2410EPA 8270E/35116600C17-C21 Aliphatic hydrocarbons
ug/L SPH10/8/2410/4/2410EPA 8270E/351115500C22-C35 Aliphatic hydrocarbons
ug/L SPH10/8/2410/4/2410EPA 8270E/3511NDC11-C13 Alkyl Naphthalenes
ug/L SPH10/8/2410/4/2410EPA 8270E/3511112Total C12-C22 PAH
ug/L J-LOW-L,
SPH
10/8/2410/4/2410EPA 8270E/3511NDAcenaphthene
ug/L SPH10/8/2410/4/2410EPA 8270E/3511NDAcenaphthylene
ug/L SPH10/8/2410/4/2410EPA 8270E/35118Anthracene
ug/L SPH10/8/2410/4/2410EPA 8270E/3511NDBenzo (a) anthracene
ug/L SPH10/8/2410/4/2410EPA 8270E/3511NDBenzo (a) pyrene
ug/L SPH10/8/2410/4/2410EPA 8270E/3511NDBenzo (b) fluoranthene
ug/L SPH10/8/2410/4/2410EPA 8270E/3511NDBenzo (g,h,i) perylene
ug/L SPH10/8/2410/4/2410EPA 8270E/3511NDBenzo (k) fluoranthene
ug/L SPH10/8/2410/4/2410EPA 8270E/3511NDChrysene
ug/L SPH10/8/2410/4/2410EPA 8270E/3511NDDibenzo (a,h) anthracene
ug/L SPH10/8/2410/4/2410EPA 8270E/3511NDFluoranthene
ug/L J-LOW-L,
SPH
10/8/2410/4/2410EPA 8270E/351137Fluorene
ug/L SPH10/8/2410/4/2410EPA 8270E/3511NDIndeno (1,2,3-cd) pyrene
ug/L SPH10/8/2410/4/2410EPA 8270E/351154Phenanthrene
ug/L SPH10/8/2410/4/2410EPA 8270E/351113Pyrene
Project Name: Sinclair Truck Stop CtF WO#: 24I2241
www.ChemtechFord.com
Page 15 of 17Page 15 of 18
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
Amended Amended
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
9/25/24 14:41 @ 5.3 °C
10/10/2024
Sinclair Truck Stop
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
J-LOW-L = Estimated low due to low recovery of LCS
S-BN = Base/Neutral surrogate recovery outside of control limits. The data was accepted based on valid recovery of remaining two base/neutral surrogates.
SPH = Sample submitted past method specified holding time.
Project Name: Sinclair Truck Stop CtF WO#: 24I2241
www.ChemtechFord.com
Page 16 of 17Page 16 of 18
Page 17 of 18
Page 18 of 18
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: 24J2556
Project: Sinclair Truck Stop
11/6/2024
Approved By:
Reed Hendricks, Lab Director
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:
10/30/24 13:03 @ 1.8 °C
11/6/2024
Sinclair Truck Stop
Sample ID: MW- 16
Lab ID: 24J2556-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 10/30/24 12:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 11/1/2411/1/240.008 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 11/1/2411/1/240.005 EPA 8260D/5030B0.015Benzene
mg/L 11/1/2411/1/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 11/1/2411/1/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 11/1/2411/1/240.012 EPA 8260D/5030BNDToluene
mg/L 11/1/2411/1/240.038 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 11/1/2411/1/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 11/4/2411/4/241.0 EPA 8015 C3.7Diesel Range Organics
Semi-Volatile Compounds
ug/L 11/5/2411/5/2410EPA 8270E/351144C11-12 Aliphatic hydrocarbons
ug/L 11/5/2411/5/2410EPA 8270E/3511115C13-C16 Aliphatic hydrocarbons
ug/L 11/5/2411/5/2410EPA 8270E/3511158C17-C21 Aliphatic hydrocarbons
ug/L 11/5/2411/5/2410EPA 8270E/35111550C22-C35 Aliphatic hydrocarbons
ug/L 11/5/2411/5/2410EPA 8270E/3511NDC11-C13 Alkyl Naphthalenes
ug/L 11/5/2411/5/2410EPA 8270E/3511NDTotal C12-C22 PAH
ug/L 11/5/2411/5/2410EPA 8270E/3511NDAcenaphthene
ug/L 11/5/2411/5/2410EPA 8270E/3511NDAcenaphthylene
ug/L 11/5/2411/5/2410EPA 8270E/3511NDAnthracene
ug/L 11/5/2411/5/2410EPA 8270E/3511NDBenzo (a) anthracene
ug/L 11/5/2411/5/2410EPA 8270E/3511NDBenzo (a) pyrene
ug/L 11/5/2411/5/2410EPA 8270E/3511NDBenzo (b) fluoranthene
ug/L 11/5/2411/5/2410EPA 8270E/3511NDBenzo (g,h,i) perylene
ug/L 11/5/2411/5/2410EPA 8270E/3511NDBenzo (k) fluoranthene
ug/L 11/5/2411/5/2410EPA 8270E/3511NDChrysene
ug/L 11/5/2411/5/2410EPA 8270E/3511NDDibenzo (a,h) anthracene
ug/L 11/5/2411/5/2410EPA 8270E/3511NDFluoranthene
ug/L 11/5/2411/5/2410EPA 8270E/35114Fluorene
ug/L 11/5/2411/5/2410EPA 8270E/3511NDIndeno (1,2,3-cd) pyrene
ug/L 11/5/2411/5/2410EPA 8270E/3511NDPhenanthrene
ug/L 11/5/2411/5/2410EPA 8270E/3511NDPyrene
Project Name: Sinclair Truck Stop CtF WO#: 24J2556
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:
10/30/24 13:03 @ 1.8 °C
11/6/2024
Sinclair Truck Stop
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
S-BN = Base/Neutral surrogate recovery outside of control limits. The data was accepted based on valid recovery of remaining two base/neutral surrogates.
Project Name: Sinclair Truck Stop CtF WO#: 24J2556
www.ChemtechFord.com
Page 3 of 4Page 3 of 4
Page 4 of 4
Analytical Report
Client:Rockwell Solutions Project:Sinclair Truck Stop
718 E Bridger Ln
Elk Ridge, Utah 84651 Client Field ID: MW-16
Laboratory ID:103024-08 A
Attn: Dave Hansen
Analysis:TPH DRO/GRO
Date Received:10/30/2024 MBTEXN
Date Collected:10/30/2024 Matrix:Water
Collection Time:12:00 Sample Received By:Becky Holubek
Parameter Date Method Reporting Test Results
Analyzed Limit (mg/L) Limit (mg/L)
TPH DRO (C10 to C28)11/06/2024 SW-846 8015B Modified 0.50 1.42
TPH GRO (C6 to C10)11/06/2024 SW-846 8260B/5030B 0.50 0.50
Methyl tert-butyl ether 11/06/2024 SW-846 8260B/5030B 0.002 < 0.002
Benzene 11/06/2024 SW-846 8260B/5030B 0.002 0.012
Toluene 11/06/2024 SW-846 8260B/5030B 0.002 < 0.002
Ethylbenzene 11/06/2024 SW-846 8260B/5030B 0.002 < 0.002
Xylenes, Total 11/06/2024 SW-846 8260B/5030B 0.006 < 0.006
Naphthalene 11/06/2024 SW-846 8260B/5030B 0.002 0.005
Dilution Factor Used:GRO 1
DRO 1
MBTEXN 2
Approved by: ________________________________________ Date of Issue: 13-Nov-24
Becky Holubek, Laboratory Director
All analyses performed in compliance with National Environmental Laboratory Accreditation Conference (NELAC) standards Page 1 of 1
+ Utility Testing Laboratory
1615 W. 2200 S. Suite A
Salt Lake City, Utah 84119
Toll Free: [phone]
Phone [phone]
Fax [phone]
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
JT, Direct Push
3”
End of Boring at 15 feet
NA
9’
David Hansen
15’
0-5
5-10
00
05
10
B-1
15
10-15
DATE: 9/25/24
LOCATION:
PROJECT:
7100 N Silver Creek Rd
Park City, Utah
0
Asphalt
Sinclair Truck Stop
0Gravelly sand with silt (GW), fine-grained light gray, damp
Silty clay (CL), high plasticity, brown, saturated
Sand and gravel fill
Sand (SW), medium-grained brown, saturated
0
0
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
JT, Direct Push
3”
End of Boring at 15 feet
NA
9’
David Hansen
15’
0-5
5-10
00
05
10
B-2
15
10-15
DATE: 9/25/24
LOCATION:
PROJECT:
7100 N Silver Creek Rd
Park City, Utah
0
Asphalt
Sinclair Truck Stop
33
Gravelly sand with silt (GW), fine-grained light gray, damp
Silty clay (CL), medium plasticity, gray, damp
Sand and gravel fill
361
0
Silty clay (CL), high plasticity, light brown, saturated
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
JT, Direct Push
3”
End of Boring at 15 feet
NA
9’
David Hansen
15’
0-5
5-10
00
05
10
B-3
15
10-15
DATE: 9/25/24
LOCATION:
PROJECT:
7100 N Silver Creek Rd
Park City, Utah
0
Sinclair Truck Stop
0Gravelly sand with silt (GW), fine-grained light gray, damp
Silty clay (CL), high plasticity, brown, damp
Sand and gravel fill
9
6
Silt (ML), low plasticity, dark brown, damp
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
JT, Direct Push
3”
End of Boring at 15 feet
NA
9’
David Hansen
15’
0-5
5-10
00
05
10
B-4
15
10-15
DATE: 9/25/24
LOCATION:
PROJECT:
7100 N Silver Creek Rd
Park City, Utah
0
Asphalt
Sinclair Truck Stop
0
Gravelly sand with silt (GW), fine-grained light gray, damp
Silty clay (CL), high plasticity, brown, damp
Sand and gravel fill
0
376
Gravelly sand with silt (GW), fine-grained light gray, wet
Silty clay (CL), high plasticity, brown, saturated
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
JT, Direct Push
3”
End of Boring at 15 feet
NA
9’
David Hansen
15’
0-5
5-10
00
05
10
B-5
15
10-15
DATE: 9/25/24
LOCATION:
PROJECT:
7100 N Silver Creek Rd
Park City, Utah
0
Asphalt
Sinclair Truck Stop
420
Silty clay (CL), high plasticity, brown, damp
Sand and gravel fill, some pea gravel
9
111
Gravelly sand with silt (GW), fine-grained light gray, wet
Silty clay (CL), high plasticity, brown, saturated
487
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
JT, Direct Push
3”
End of Boring at 15 feet
NA
10’
David Hansen
15’
0-5
5-10
00
05
10
B-6
15
10-15
DATE: 9/25/24
LOCATION:
PROJECT:
7100 N Silver Creek Rd
Park City, Utah
0
Asphalt
Sinclair Truck Stop
0
Sand and gravel fill, some pea gravel
199
487
Gravelly sand with silt (GW), fine-grained light gray, wet
Silty clay (CL), high plasticity, brown, saturated
246
Silt (ML), low plasticity, brown, damp
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
JT, Direct Push
3”
End of Boring at 15 feet
NA
10’
David Hansen
15’
0-5
5-10
00
05
10
B-7
15
10-15
DATE: 9/25/24
LOCATION:
PROJECT:
7100 N Silver Creek Rd
Park City, Utah
3
Asphalt
Sinclair Truck Stop
0
Sand and gravel fill, some pea gravel
174
329
Gravelly sand with silt (GW), fine-grained light gray, wet
Silty clay (CL), high plasticity, brown, saturated
Silt (ML), low plasticity, brown, damp
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
JT, Direct Push
3”
End of Boring at 15 feet
NA
10’
David Hansen
15’
0-5
5-10
00
05
10
B-8
15
10-15
DATE: 9/25/24
LOCATION:
PROJECT:
7100 N Silver Creek Rd
Park City, Utah
0
Sinclair Truck Stop
0
Silt (ML), low plasticity, brown, damp
Top soil
475
Gravelly sand with silt (GW), fine-grained light gray, wet
Silty clay (CL), high plasticity, brown, saturated
278