DERR-2025-001228

Rockwell Solutions, Inc., 718 E. Bridger Lane, Elk Ridge, UT 84651 801-361-2930 [e-mail]
1
Rockwell Solutions, Inc.
718 E Bridger Lane
Elk Ridge, UT 84651
[phone]
February 15, 2025

Brett Gurney
Fuel Manager
Utah Department of Government Operations, Division of Fleet Operations, Fuel Network Program
4315 S 2700 West
Taylorsville, UT 84129

Re: Subsurface Investigation
UDOT Station #136 Facility ID: 0100223
730 W 200 North Release ID: OLI
Logan, Utah

Dear Mr. Gurney:

Rockwell Solutions, Inc. has completed a subsurface investigation at the above-referenced facility
in accordance with State of Utah Division of Environmental Response and Remediation (DERR)
guidelines.

INTRODUCTION

The site is an active fueling facility for the Utah Department of Transportation (UDOT). The
underground storage tanks (USTs) were removed in August 2024. During UST closure activities
hydrocarbon concentrations exceeded Tier 1 levels in the soil and groundwater samples collected
from the UST basin. Hydrocarbons in one of the piping samples exceeded Initial Screening Levels
(ISLs).

The USTs were replaced with one aboveground storage tank located inside the fenced area of the
facility. Two dispensers are located in the same area as the previous dispensers.

The fueling area is located approximately 170 feet west of the office and UDOT garage. The only
utilities that serve the fueling area are electrical and communication lines. Sewer, natural gas, and
communication main lines run east-west immediately north of the former tank basin. See Figure 1.

METHODOLOGY

Four borings were installed around the former tank basin to define the extent of soil contamination.
Five monitoring wells were installed in and around the former tank basin to define the extent of
groundwater contamination. All drilling and well installation work was completed on January 16,
2025. Direct Push Services was employed as the drilling contractor under the supervision of a
Rockwell Solutions representative.
Subsurface Investigation, UDOT Station #136, Logan, Utah, Facility #0100223, Release OLI

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

Five-foot soil core samples were collected continuously from the direct push borings. 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). The sample with the highest PID
reading or the soil interval above the apparent water table in each boring was submitted for
laboratory analysis of MTBE, benzene, toluene, ethylbenzene, xylenes, naphthalene (MBTEXN)
total petroleum hydrocarbons-gasoline range organics (TPH-GRO) using EPA Method 8260 and
TPH-diesel range organics (TPH-DRO) using EPA Method 8015.

Monitoring wells were installed to a depth of thirteen to fifteen feet with ten feet of 0.010-inch
screen. The wells contain 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 at
each well was measured to the nearest 0.01 foot using a transit level.

The monitoring wells were developed and a groundwater sample was collected with a disposable
bailer. The samples were submitted for laboratory analysis of MBTEXN and TPH-GRO using EPA
Method 8260, and TPH-DRO using EPA Method 8015.

RESULTS

Soil Type
Soil type was evaluated during the subsurface investigation by field analysis of soil samples. The
native soil at the site generally consists of a few feet of gravelly sand (SW) underlain by a lean clay
(OH) layer to at least fifteen feet bg. Boring logs are attached.

Soil Analytical Results
Table 1 lists the analytical results of the soil samples collected during the UST removal and the
subsurface investigation. The soil sample from MW-2 exceeded the Initial Screening Level (ISL)
for TPH-DRO. No other hydrocarbon concentrations were detected in any soil samples collected
during the subsurface investigation. The laboratory analytical reports and chain-of-custody records
for soil samples collected during the subsurface investigation are attached. PID readings are shown
on the boring logs.

Groundwater Analytical Results
Table 2 lists the analytical results of the groundwater samples collected during the UST removal
and the subsurface investigation. The sample from MW-3 in the former tank basin, exceeded the
ISL for TPH-DRO. Hydrocarbons were not detected in groundwater samples from any of the other
wells. The laboratory analytical reports and chain-of-custody records for samples collected during
the subsurface investigation are attached.

Groundwater Depth and Flow
Table 2 lists the depth to water measurements at each monitoring well. Depth to the water table is
an average of approximately five feet bg. Groundwater flow was to the southwest on February 8,
2025. Figure 2 is a groundwater contour map.

Subsurface Investigation, UDOT Station #136, Logan, Utah, Facility #0100223, Release OLI

Rockwell Solutions, Inc., 718 E. Bridger Lane, Elk Ridge, UT 84651 801-361-2930 [e-mail]
3
TIER 1 CRITERIA

Land Use
The site is located in a commercial area. No residences are located within 500 feet of the site.

Utilities
Locations of buried utility lines in the investigation area were discussed previously. The exact
depths to the other utility lines are not known, but are estimated to be approximately two to three
feet.

Receptors
A well search of the Water Rights database indicates a water well approximately 125 feet northeast
of the former tank basin. However, the map location shows the well in 200 North. There is no
indication of a well in that area. Also, the well is owned by the Church of Jesus Christ of Latter-
Day Saints. It does not appear that there are any Church properties in the immediate area of the
well. It is believed that the well has been mapped incorrectly. The Division of Water Rights makes
no claims to the accuracy of the data. Two other wells are approximately 500 feet northeast
(upgradient) of the site. See Figure 3.

CONCLUSIONS AND RECOMMENDATIONS

It appears that soil and groundwater contamination are limited to the former tank basin and that the
groundwater contaminant concentrations have significantly decreased in the tank basin since the
UST removal.

Rockwell Solutions recommends collecting an additional round of groundwater samples from the
five monitoring wells in three to four months to evaluate the release for closure.

Please feel free to contact me should you have any questions or concerns at 801-361-2930.

Sincerely,

David S Hansen
Rockwell Solutions, Inc.
Certified UST Consultant CC130

cc: Kevin Beery, DERR
Communication
Sewer
NORTH
UDOT #136
730 W 200 North
Logan, Utah
Approx. scale in feet
00 30
Figure 1 Site Map
MW-3
MW-19
0.033
MW-1
6.36
MW-7
0.485
Boring
erWat
Gas
erSew
Monitoring Well
MW-4
MW-1
MW-2
MW-5
B-1B-3
B-2
B-4
t cElecri
Communication
Sewer
NORTH
UDOT #136
730 W 200 North
Logan, Utah
Approx. scale in feet
00 30
Figure 2 Groundwater Elevation
Map 2/8/25
MW-19
0.033
MW-1
6.36
MW-7
0.485
Monitoring Well
MW-4
94.17 MW-1
94.40
MW-2
94.04
MW-5
94.09
MW-3
*94.58
94.09 Groundwater Elevation (ft)
= Groundwater Elevation Contour (ft)
* Anomalous Elevation in backfill. Not used in contouring
-
9
4
.
3
-
-
-
9
4
.
2
9
4
.
1
-
-
Water Rights in Area
Water Well Location
NORTH
Figure 3
UDOT Station #136
730 W 200 North
Logan, Utah
Site
50 ’0
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 South 8' 8 8/6/2024 <0.19 <0.13 <0.32 3.07 27.3 <0.32 74.9 5,750
SS-2 North 8' 8 8/6/2024 <0.19 <0.13 0.67 9.6 89.3 0.63 253 9,030
P-1 West 3' 3 8/6/2024 <0.02 <0.01 <0.03 <0.03 2.32 <0.03 7.88 1,620
P-2 East 3' 3 8/6/2024 <0.02 <0.01 <0.03 <0.03 <0.09 <0.03 <0.313 <64
B-1, 5' 5 1/16/2025 <0.02 <0.01 <0.03 <0.03 <0.10 <0.03 <0.319 <64
B-2, 5' 5 1/16/2025 <0.02 <0.01 <0.03 <0.03 <0.09 <0.03 <0.310 <63
B-3, 4.5' 4.5 1/16/2025 <0.02 <0.01 <0.03 <0.03 <0.09 <0.03 <0.286 <68
B-4, 4.5' 4.5 1/16/2025 <0.02 <0.01 <0.03 <0.03 <0.10 <0.03 <0.335 <67
MW-1, 8' 8 1/16/2025 <0.02 <0.01 <0.03 <0.03 <0.08 <0.03 <0.261 <63
MW-2, 6.5' 6.5 1/16/2025 <0.02 <0.01 <0.03 <0.03 <0.08 <0.03 <0.263 1,650
MW-3, 14' 14 1/16/2025 <0.02 <0.01 <0.03 <0.03 <0.10 <0.03 <0.345 116
MW-4, 7' 7 1/16/2025 <0.02 <0.01 <0.03 <0.03 <0.09 <0.03 <0.303 <64
MW-5, 6' 6 1/16/2025 <0.02 <0.01 <0.03 <0.03 <0.08 <0.03 <0.270 <64
TPH-GRO = Total petroleum hydrocarbons-gasoline range organics
TPH-DRO = Total petroleum hydrocarbons - diesel range organics
mg/kg = milligrams per kilogram, which approximates parts per million
ISL = Initial Screening Level
Pink shading = exceeds ISL
Yellow shading = exceeds Tier 1 level
Table 1
ISL's
RBCA Tier 1 Screening Levels
Soil Analytical Results
UDOT Station #136, 730 W 200 North, Logan, Utah (UST No. 0100223, LUST No. OLI)
Sample Number
TOC Elevation
Date
Collected
Depth to
Water (ft)
GW
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
GW-1 South 8'8/6/2024 8.00 <0.008 0.03 0.548 0.08 1.12 0.02 3.03 23.5
GW-2 North 8' 8/6/2024 8.00 <0.008 0.025 0.307 0.025 0.71 0.013 2.14 9.7
MW-1 2/8/2025 5.60 94.40 <0.008 <0.005 <0.012 <0.012 <0.038 <0.012 <0.125 <1
100.00
MW-2 2/8/2025 6.49 94.04 <0.008 <0.005 <0.012 <0.012 <0.038 <0.012 <0.125 <1
100.53
MW-3 2/8/2025 4.71 94.58 <0.008 <0.005 <0.012 <0.012 <0.038 <0.012 0.23 1.9
99.29
MW-4 2/8/2025 4.31 94.17 <0.008 <0.005 <0.012 <0.012 <0.038 <0.012 <0.125 <1
98.48
MW-5 2/8/2025 4.18 94.09 <0.008 <0.005 <0.012 <0.012 <0.038 <0.012 <0.125 <1
98.27
Pink shading = exceeds ISL
Yellow shading = exceeds Tier 1 level
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
Table 2
ISL's
RBCA Tier 1 Screening Levels
Groundwater Analytical Results
UDOT Station #136, 730 W 200 North, Logan, Utah (UST No. 0100223, LUST No. OLI)
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: 25B0654
Project: UDOT Logan
2/14/2025
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 8
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:
2/10/25 11:35 @ 7.9 °C
2/14/2025
UDOT Logan
Sample ID: MW- 1
Lab ID: 25B0654-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/8/25 14:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 2/11/252/11/250.005 EPA 8260D/5030BNDBenzene
mg/L 2/11/252/11/250.012 EPA 8260D/5030BNDEthylbenzene
mg/L 2/11/252/11/250.008 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/L 2/11/252/11/250.012 EPA 8260D/5030BNDNaphthalene
mg/L 2/11/252/11/250.012 EPA 8260D/5030BNDToluene
mg/L 2/11/252/11/250.038 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 2/11/252/11/250.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 2/11/252/11/251.0 EPA 8015 CNDDiesel Range Organics
Project Name: UDOT Logan CtF WO#: 25B0654
www.ChemtechFord.com
Page 2 of 8Page 2 of 8
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:
2/10/25 11:35 @ 7.9 °C
2/14/2025
UDOT Logan
Sample ID: MW- 2
Lab ID: 25B0654-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/8/25 14:45
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 2/11/252/11/250.005 EPA 8260D/5030BNDBenzene
mg/L 2/11/252/11/250.012 EPA 8260D/5030BNDEthylbenzene
mg/L 2/11/252/11/250.008 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/L 2/11/252/11/250.012 EPA 8260D/5030BNDNaphthalene
mg/L 2/11/252/11/250.012 EPA 8260D/5030BNDToluene
mg/L 2/11/252/11/250.038 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 2/11/252/11/250.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 2/11/252/11/251.0 EPA 8015 CNDDiesel Range Organics
Project Name: UDOT Logan CtF WO#: 25B0654
www.ChemtechFord.com
Page 3 of 8Page 3 of 8
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:
2/10/25 11:35 @ 7.9 °C
2/14/2025
UDOT Logan
Sample ID: MW- 3
Lab ID: 25B0654-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/8/25 15:30
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 2/11/252/11/250.005 EPA 8260D/5030BNDBenzene
mg/L 2/11/252/11/250.012 EPA 8260D/5030BNDEthylbenzene
mg/L 2/11/252/11/250.008 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/L 2/11/252/11/250.012 EPA 8260D/5030BNDNaphthalene
mg/L 2/11/252/11/250.012 EPA 8260D/5030BNDToluene
mg/L 2/11/252/11/250.038 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 2/11/252/11/250.125 EPA 8260B/C /5030A/[CALC]0.230Gasoline Range Organics
Diesel Range
mg/L 2/11/252/11/251.0 EPA 8015 C1.9Diesel Range Organics
Project Name: UDOT Logan CtF WO#: 25B0654
www.ChemtechFord.com
Page 4 of 8Page 4 of 8
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:
2/10/25 11:35 @ 7.9 °C
2/14/2025
UDOT Logan
Sample ID: MW- 4
Lab ID: 25B0654-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/8/25 14:20
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 2/11/252/11/250.005 EPA 8260D/5030BNDBenzene
mg/L 2/11/252/11/250.012 EPA 8260D/5030BNDEthylbenzene
mg/L 2/11/252/11/250.008 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/L 2/11/252/11/250.012 EPA 8260D/5030BNDNaphthalene
mg/L 2/11/252/11/250.012 EPA 8260D/5030BNDToluene
mg/L 2/11/252/11/250.038 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 2/11/252/11/250.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 2/11/252/11/251.0 EPA 8015 CNDDiesel Range Organics
Project Name: UDOT Logan CtF WO#: 25B0654
www.ChemtechFord.com
Page 5 of 8Page 5 of 8
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:
2/10/25 11:35 @ 7.9 °C
2/14/2025
UDOT Logan
Sample ID: MW- 5
Lab ID: 25B0654-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 2/8/25 15:05
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 2/11/252/11/250.005 EPA 8260D/5030BNDBenzene
mg/L 2/11/252/11/250.012 EPA 8260D/5030BNDEthylbenzene
mg/L 2/11/252/11/250.008 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/L 2/11/252/11/250.012 EPA 8260D/5030BNDNaphthalene
mg/L 2/11/252/11/250.012 EPA 8260D/5030BNDToluene
mg/L 2/11/252/11/250.038 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 2/11/252/11/250.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 2/11/252/11/251.0 EPA 8015 CNDDiesel Range Organics
Project Name: UDOT Logan CtF WO#: 25B0654
www.ChemtechFord.com
Page 6 of 8Page 6 of 8
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:
2/10/25 11:35 @ 7.9 °C
2/14/2025
UDOT Logan
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: UDOT Logan CtF WO#: 25B0654
www.ChemtechFord.com
Page 7 of 8Page 7 of 8
Page 8 of 8
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: 25A1390
Project: UDOT Logan
1/28/2025
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 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
1/21/25 8:45 @ 0.6 °C
1/28/2025
UDOT Logan
Sample ID: B-1, 5'
Lab ID: 25A1390-01Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 1/16/25 9:10
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%1/21/251/21/250.1 CTF800078.4Total Solids
MBTEXn
mg/kg dry 1/21/251/21/250.01 EPA 8260D/5030BNDBenzene
mg/kg dry 1/21/251/21/250.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 1/21/251/21/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 1/21/251/21/250.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 1/21/251/21/250.03 EPA 8260D/5030BNDToluene
mg/kg dry 1/21/251/21/250.10 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 1/21/251/21/250.319 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 1/22/251/22/2564EPA 8015 CNDDiesel Range Organics
Project Name: UDOT Logan CtF WO#: 25A1390
www.ChemtechFord.com
Page 2 of 12Page 2 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
1/21/25 8:45 @ 0.6 °C
1/28/2025
UDOT Logan
Sample ID: B-2, 5'
Lab ID: 25A1390-02Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 1/16/25 9:30
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%1/21/251/21/250.1 CTF800079.9Total Solids
MBTEXn
mg/kg dry 1/21/251/21/250.01 EPA 8260D/5030BNDBenzene
mg/kg dry 1/21/251/21/250.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry MS-Low,
RPD-MSOut
1/21/251/21/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 1/21/251/21/250.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry MS-Low,
RPD-MSOut
1/21/251/21/250.03 EPA 8260D/5030BNDToluene
mg/kg dry 1/21/251/21/250.09 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 1/21/251/21/250.310 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 1/22/251/22/2563EPA 8015 CNDDiesel Range Organics
Project Name: UDOT Logan CtF WO#: 25A1390
www.ChemtechFord.com
Page 3 of 12Page 3 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
1/21/25 8:45 @ 0.6 °C
1/28/2025
UDOT Logan
Sample ID: B-3, 4.5'
Lab ID: 25A1390-03Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 1/16/25 9:45
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%1/21/251/21/250.1 CTF800073.4Total Solids
MBTEXn
mg/kg dry 1/22/251/22/250.01 EPA 8260D/5030BNDBenzene
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 1/22/251/22/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDToluene
mg/kg dry 1/22/251/22/250.09 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 1/22/251/22/250.286 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 1/22/251/22/2568EPA 8015 CNDDiesel Range Organics
Project Name: UDOT Logan CtF WO#: 25A1390
www.ChemtechFord.com
Page 4 of 12Page 4 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
1/21/25 8:45 @ 0.6 °C
1/28/2025
UDOT Logan
Sample ID: B-4, 5'
Lab ID: 25A1390-04Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 1/16/25 10:10
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%1/21/251/21/250.1 CTF800074.5Total Solids
MBTEXn
mg/kg dry 1/22/251/22/250.01 EPA 8260D/5030BNDBenzene
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 1/22/251/22/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDToluene
mg/kg dry 1/22/251/22/250.10 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 1/22/251/22/250.335 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 1/22/251/22/2567EPA 8015 CNDDiesel Range Organics
Project Name: UDOT Logan CtF WO#: 25A1390
www.ChemtechFord.com
Page 5 of 12Page 5 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
1/21/25 8:45 @ 0.6 °C
1/28/2025
UDOT Logan
Sample ID: MW-1, 8'
Lab ID: 25A1390-05Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 1/16/25 11:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%1/21/251/21/250.1 CTF800079.9Total Solids
MBTEXn
mg/kg dry 1/22/251/22/250.01 EPA 8260D/5030BNDBenzene
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 1/22/251/22/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDToluene
mg/kg dry 1/22/251/22/250.08 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 1/22/251/22/250.261 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 1/22/251/22/2563EPA 8015 CNDDiesel Range Organics
Project Name: UDOT Logan CtF WO#: 25A1390
www.ChemtechFord.com
Page 6 of 12Page 6 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
1/21/25 8:45 @ 0.6 °C
1/28/2025
UDOT Logan
Sample ID: MW-2, 6.5'
Lab ID: 25A1390-06Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 1/16/25 12:05
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%1/21/251/21/250.1 CTF800092.4Total Solids
MBTEXn
mg/kg dry 1/22/251/22/250.01 EPA 8260D/5030BNDBenzene
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 1/22/251/22/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDToluene
mg/kg dry 1/22/251/22/250.08 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 1/22/251/22/250.263 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 1/22/251/22/2554EPA 8015 C1650Diesel Range Organics
Project Name: UDOT Logan CtF WO#: 25A1390
www.ChemtechFord.com
Page 7 of 12Page 7 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
1/21/25 8:45 @ 0.6 °C
1/28/2025
UDOT Logan
Sample ID: MW-3, 14'
Lab ID: 25A1390-07Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 1/16/25 13:40
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%1/21/251/21/250.1 CTF800071.1Total Solids
MBTEXn
mg/kg dry 1/22/251/22/250.01 EPA 8260D/5030BNDBenzene
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 1/22/251/22/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDToluene
mg/kg dry 1/22/251/22/250.10 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 1/22/251/22/250.345 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 1/22/251/22/2570EPA 8015 C116Diesel Range Organics
Project Name: UDOT Logan CtF WO#: 25A1390
www.ChemtechFord.com
Page 8 of 12Page 8 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
1/21/25 8:45 @ 0.6 °C
1/28/2025
UDOT Logan
Sample ID: MW-4, 7'
Lab ID: 25A1390-08Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 1/16/25 15:00
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%1/21/251/21/250.1 CTF800077.7Total Solids
MBTEXn
mg/kg dry 1/22/251/22/250.01 EPA 8260D/5030BNDBenzene
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 1/22/251/22/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDToluene
mg/kg dry 1/22/251/22/250.09 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 1/22/251/22/250.303 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 1/24/251/24/2564EPA 8015 CNDDiesel Range Organics
Project Name: UDOT Logan CtF WO#: 25A1390
www.ChemtechFord.com
Page 9 of 12Page 9 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
1/21/25 8:45 @ 0.6 °C
1/28/2025
UDOT Logan
Sample ID: MW-5, 6'
Lab ID: 25A1390-09Matrix: Solid
Flag(s)Units
Analysis
Date/Time
Date Sampled: 1/16/25 16:30
Preparation
Date/Time
Sampled By: David Hansen
Minimum
Reporting
Limit MethodResult
Inorganic
%1/21/251/21/250.1 CTF800078.3Total Solids
MBTEXn
mg/kg dry 1/22/251/22/250.01 EPA 8260D/5030BNDBenzene
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDEthylbenzene
mg/kg dry 1/22/251/22/250.02 EPA 8260D/5030BNDMethyl-tert-butyl ether (MTBE)
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDNaphthalene
mg/kg dry 1/22/251/22/250.03 EPA 8260D/5030BNDToluene
mg/kg dry 1/22/251/22/250.08 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/kg dry 1/22/251/22/250.270 EPA 8260B/C 5035A/[CALC]NDGasoline Range Organics
Diesel Range
mg/kg dry 1/24/251/24/2564EPA 8015 CNDDiesel Range Organics
Project Name: UDOT Logan CtF WO#: 25A1390
www.ChemtechFord.com
Page 10 of 12Page 10 of 12
xx
Chemtech-Ford Laboratories
Serving the Intermountain West Since 1953
Certificate of Analysis
9632 South 500 West
Sandy, UT 84070
O:[phone] F: [phone]
www.ChemtechFord.com
Rockwell Solutions, Inc
Dave Hansen
718 East Bridger Lane
Elk Ridge, UT 84651
PO#:
Receipt:
Date Reported:
Project Name:
1/21/25 8:45 @ 0.6 °C
1/28/2025
UDOT Logan
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
MS-Low = Estimated low due to Matrix Spike recovery.
RPD-MSOut = The RPD between MS and MSD is outside established control limits.
Project Name: UDOT Logan CtF WO#: 25A1390
www.ChemtechFord.com
Page 11 of 12Page 11 of 12
Page 12 of 12
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
PID
Direct Push
Conner, Direct Push
David Hansen
10’
0-5
5-10
00
05
10
B-1
DATE: 1/16/2025
LOCATION:
PROJECT: UDOT Station #136
730 W 200 North
Logan, Utah
0
End of boring at 10 feet
5’
Gravelly Sand (SW), fine to coarse-grained, brown, damp
Lean clay (OH), high plasticity, brown, damp
Asphalt
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
PID
Direct Push
Conner, Direct Push
David Hansen
10’
0-5
5-10
00
05
10
B-2
DATE: 1/16/2025
LOCATION:
PROJECT: UDOT Station #136
730 W 200 North
Logan, Utah
0
End of boring at 10 feet
5’
Gravelly Sand (SW), fine to coarse-grained, brown, damp
Lean clay (OH), high plasticity, brown, damp
Asphalt
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
PID
Direct Push
Conner, Direct Push
David Hansen
10’
0-5
5-10
00
05
10
B-3
DATE: 1/16/2025
LOCATION:
PROJECT: UDOT Station #136
730 W 200 North
Logan, Utah
0
End of boring at 10 feet
5’
Gravelly Sand (SW), fine to coarse-grained, brown, damp
Lean clay (OH), high plasticity, brown, damp
Asphalt
0
Dark staining at 4.5’0
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
PID
Direct Push
Conner, Direct Push
David Hansen
10’
0-5
5-10
00
05
10
B-4
DATE: 1/16/2025
LOCATION:
PROJECT: UDOT Station #136
730 W 200 North
Logan, Utah
0
End of boring at 10 feet
5’
Gravelly Sand (SW), fine to coarse-grained, brown, damp
Lean clay (OH), high plasticity, brown, damp
Asphalt
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
PID
Direct Push
Conner, Direct Push
David Hansen
15’
0-5
5-10
00
05
10
MW-1
DATE: 1/16/2025
LOCATION:
PROJECT: UDOT Station #136
730 W 200 North
Logan, Utah
0
End of boring at 15 feet. Set well at 13’
6’
Gravelly Sand (SW), fine to coarse-grained, brown, damp
Lean clay (OH), high plasticity, dense, light brown, saturated
Asphalt
0
1515
bentonite
seal
10-20
silica
sand
.010"
Screen
road
box
0
0
Silty clay (CL), high plasticity, brown, moist
0.010”PVC2”3”
100.00
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
PID
Direct Push
Conner, Direct Push
David Hansen
15’
0-5
5-10
00
05
10
MW-2
DATE: 1/16/2025
LOCATION:
PROJECT: UDOT Station #136
730 W 200 North
Logan, Utah
0
End of boring at 15 feet. Set well at 15’
7’
Gravelly Sand (SW), fine to coarse-grained, brown, damp
Lean clay (OH), high plasticity, dense, light brown, saturated
Asphalt
0
1515
bentonite
seal
10-20
silica
sand
.010"
Screen
road
box
0
0
0.010”PVC2”3”
100.53
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
PID
Direct Push
Conner, Direct Push
David Hansen
15’
0-5
5-10
00
05
10
MW-3
DATE: 1/16/2025
LOCATION:
PROJECT: UDOT Station #136
730 W 200 North
Logan, Utah
End of boring at 15 feet. Set well at 13’
5’
Sand and gravel backfill in former tank basin
Lean clay (OH), high plasticity, dense, light brown, saturated
Asphalt
1515
bentonite
seal
10-20
silica
sand
.010"
Screen
road
box
0
0.010”PVC2”3”
99.29
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
PID
Direct Push
Conner, Direct Push
David Hansen
15’
0-5
5-10
00
05
10
MW-4
DATE: 1/16/2025
LOCATION:
PROJECT: UDOT Station #136
730 W 200 North
Logan, Utah
0
End of boring at 15 feet. Set well at 13’
5’
Gravelly Sand (SW), fine to coarse-grained, brown, damp
Lean clay (OH), high plasticity, dense, light brown, saturated
Asphalt
0
1515
bentonite
seal
10-20
silica
sand
.010"
Screen
road
box
0
0
0.010”PVC2”3”
98.48
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
PID
Direct Push
Conner, Direct Push
David Hansen
15’
0-5
5-10
00
05
10
MW-5
DATE: 1/16/2025
LOCATION:
PROJECT: UDOT Station #136
730 W 200 North
Logan, Utah
0
End of boring at 15 feet. Set well at 13’
4.5’
Gravelly Sand (SW), fine to coarse-grained, brown, damp
Lean clay (OH), high plasticity, dense, light brown, damp
Asphalt
0
1515
bentonite
seal
10-20
silica
sand
.010"
Screen
road
box
0
0
0.010”PVC2”3”
98.27