DERR-2024-012721

October 2024
Groundwater
Monitoring Report
Hardy Service Conoco
98 West Main Street, Delta, Utah
Facility Identification No. 2000349,
Release Site GHS
November 26, 2024 | Terracon Project No. 61247154
Prepared for:
Utah Department of Environmental Quality
Division of Environmental Response and Remediation
Salt Lake City, Utah
6952 South High Tech Dr. Ste. B
Midvale, Utah 84047
P [phone]
Terracon.com
Facilities | Environmental | Geotechnical | Materials i
November 26, 2024
Utah Department of Environmental Quality
Division of Environmetnal Response and Remediation
P.O. Box 144840
Salt Lake City, Utah 84114-4840
Attn: Eileen Brennan
P: 801-536-4100
E: [e-mail]
RE: October 2024 Groundwater Monitoring Report
Hardy Service Conoco
98 West Main Street, Delta, Utah
Facility Identification No. 2000349, Release Site GHS
Terracon Project No. 61247154
Dear Ms. Brennan:
Terracon is pleased to provide this report documenting the October 2024 groundwater
monitoring at the above-referenced site. Terracon has performed these activities under the
Utah Department of Environmental Quality’s (UDEQ’s) Work Assignment GHS-4-TER, dated
September 10, 2024, following UDEQ-approved Work Plan GHS-03-TER, dated May 29, 2024.
We appreciate the opportunity to have performed these services for you. Please contact our
office at [phone] if you have questions regarding this information or if we can
provide any other services.
Sincerely,
Terracon Consultants, Inc.
Stephen Maliszeski Craig D. Eaton
Project Manager Authorized Project Reviewer
Utah UST Consultant CC0167
Facilities | Environmental | Geotechnical | Materials ii
Table of Contents
1.0 Introduction ................................................................................ 1
1.1 Project Background ................................................................................ 1
1.2 Scope of Work ....................................................................................... 2
1.3 Standard of Care .................................................................................... 2
1.4 Additional Scope Limitations .................................................................... 2
1.5 Reliance ................................................................................................ 2
2.0 Groundwater Sampling Event......................................................... 3
2.1 Groundwater Sample Collection ............................................................... 3
2.2 Site Observations ................................................................................... 3
2.3 Investigation-derived Waste .................................................................... 3
3.0 Laboratory Analytical Methods ....................................................... 4
4.0 Data Evaluation ........................................................................... 4
4.1 Groundwater Sample Results ................................................................... 4
5.0 Findings and Conclusions .............................................................. 4
Appendices
Appendix A Exhibits
Exhibit 1: Topographic Site Overview
Exhibit 2: Groundwater Gradient Map, October 2024
Appendix B Table
Table 1: Groundwater Analytical Results
Appendix C Chain of Custody and Laboratory Data Sheets
GHS-4-TER: Groundwater Monitoring Report
Hardy Service Conoco | Delta, Utah
November 26, 2024 | Terracon Project No. 61247154
Facilities | Environmental | Geotechnical | Materials 1
1.0 Introduction
1.1 Project Background
The Utah Department of Environmental Quality (UDEQ) Division of Environmental Response
and Remediation (DERR) initiated a Limited Site Investigation at the former Hardy Service
Conoco, located at 98 West Main Street, Delta, Utah (Exhibit 1) in August of 2014 related to
a former underground storage tank (UST) basin. The investigation consisted of eight borings
advanced to approximately 20 feet below ground surface (bgs) to assess soil impacts. Six of
the borings were converted to permanent monitoring wells to assess the groundwater
impacts. Boring and monitoring well locations are depicted on Exhibit 2.
The August 2014 investigation identified that all soil samples were either below method
detection limits (MDLs) or reported concentrations below Utah’s Initial Screening Levels
(ISLs), the most conservative UDEQ screening levels considered protective of human health
and the environment for any land use scenario. Analysis of the groundwater samples
identified exceedances of benzene, ethylbenzene, and total petroleum hydrocarbon gasoline
range organics (TPH-GRO) above the Utah ISLs. Naphthalene was reported above its ISL
and risk-based Tier 1 screening level, which are the same. The greatest concentrations were
reported in MW-1 and MW-2. The DERR requested three additional rounds of groundwater
sampling conducted in November 2014, February 2015, and May 2015. Through the
sampling events, concentrations of benzene, and TPH-GRO remained above their ISLs in
both MW-1 and MW-2, ethylbenzene remained above its ISL in MW-1, and naphthalene
remained above its ISL/Tier 1 screening level in MW-1.
The most recent document, a Site Condition Report for LUST Trust Site Reviews, dated
September 3, 2021, stated the following relating to the Hardy Service Conoco site:
“The site has been re-developed as a City of Delta Fire Station. A release was reported from
a previous gas station that operated on the site. Terracon was able to locate 5 of the 6
monitoring wells installed at the site in 2014. The only well not found was MW-2, which has
been covered by concrete in the front of the building during re-development.
The last sampling event conducted at the site was in May 2015. Groundwater sampling of
the six monitoring wells associated with the site reported concentrations of dissolved
petroleum hydrocarbons above the ISL in two on-site monitoring wells: MW-1 and MW-2.
Naphthalene exceeded the Tier 1 Screening Level in MW-1. Off-site monitoring wells did not
report an exceedance of an ISL.”
Based on the 2021 report, five groundwater monitoring wells (MW-1, MW-3, MW-4, MW-5,
and MW-6) remain on-site and were accessible for this monitoring and sampling event.
GHS-4-TER: Groundwater Monitoring Report
Hardy Service Conoco | Delta, Utah
November 26, 2024 | Terracon Project No. 61247154
Facilities | Environmental | Geotechnical | Materials 2
1.2 Scope of Work
These environmental activities were conducted under UDEQ Work Assignment GHS-4-TER,
dated September 10, 2024, following UDEQ-approved Work Plan GHS-3-TER, dated May 29,
2024. The objectives of the Work Plan were to perform groundwater sampling of six
available monitoring wells (MW-1, MW-3, MW-4, MW-5, and MW-6) associated with the site.
1.3 Standard of Care
Terracon’s services were performed in a manner consistent with generally accepted
practices of the profession undertaken in similar studies in the same geographical area
during the same time period. Please note that Terracon does not warrant the work of
laboratories, regulatory agencies or other third parties supplying information used in the
preparation of the report. These services were performed in accordance with the scope of
work agreed with you, our client, as reflected in our proposal.
1.4 Additional Scope Limitations
Findings, conclusions, and recommendations resulting from these services are based upon
information derived from the on-site activities and other services performed under this
scope of work. Such information is subject to change over time. Certain indicators of the
presence of hazardous substances, petroleum products, or other constituents may have
been latent, inaccessible, unobservable, non-detectable or not present during these
services, and we cannot represent that the site contains no hazardous substances, toxic
materials, petroleum products, or other latent conditions beyond those identified during this
investigation. Subsurface conditions may vary from those encountered at specific borings or
wells or during other surveys, tests, assessments, investigations or exploratory services;
the data, interpretations, findings, and our recommendations are based solely upon data
obtained at the time and within the scope of these services.
1.5 Reliance
This report has been prepared for the exclusive use and reliance of the UDEQ DERR. Use or
reliance by any other party is prohibited without the written authorization of the UDEQ
DERR and Terracon.
Reliance on this report by the client and all authorized parties will be subject to the terms,
conditions and limitations stated in the Work Assignment, approved Work Plan, report, and
Terracon’s Terms and Conditions. The limitation of liability defined in the Terms and Conditions
is the aggregate limit of Terracon’s liability to the client and all relying parties.
GHS-4-TER: Groundwater Monitoring Report
Hardy Service Conoco | Delta, Utah
November 26, 2024 | Terracon Project No. 61247154
Facilities | Environmental | Geotechnical | Materials 3
2.0 Groundwater Sampling Event
2.1 Groundwater Sample Collection
On October 17, 2024, Terracon was onsite to collect up to five groundwater samples from
the monitoring wells located at the site (MW-1, MW-3, MW-5, and MW-6) and to the south
of the site in the roadway shoulder (MW-4). All wells were gauged for depth to groundwater
and total depth of the well. MW-1 was observed to be dry, MW-3 had an upper casing lid
that was unable to be opened, MW-4 contained 1.64 feet of water that bailed dry during the
purge process and never recovered enough volume to collect a sample, MW-5 was purged a
full three well volumes prior to collection of a groundwater sample, and MW-6 was bailed
dry during the purge process but recovered enough to collect a sample. Groundwater
purging and sample collection were completed using a new disposable bailer for each well.
A Trip Blank was included with the sample batch that consisted of a laboratory provided,
sealed, 40-milliliter sample vial containing water and five percent hydrochloric acid solution.
This sample was analyzed by the laboratory for select chemicals of concern as part of the
quality control program to ensure that any compounds detected in the sample were not the
result of contamination during the sampling, shipping, and handling process.
The wells were sampled by Utah-certified UST Groundwater and Soil Sampler Mark Lilly (GS
0049) with oversight from Utah-certified UST Consultant Amy Austin (CC0238).
2.2 Site Observations
Depth-to-water measurements and groundwater elevations are presented in Table 1
(Appendix B).
The groundwater gradient at the site was calculated using measured depth to groundwater
in relationship to the relative top of well casing elevations from wells MW-4, MW-5, and MW-
6. The direction of groundwater flow is generally flat with a slight gradient toward the
south-southwest (Exhibit 2, Appendix A). The calculated groundwater gradient and
associated flow direction is generally consistent with the flow directions observed during
previous monitoring events. Free product was not observed in the bailers in any monitoring
wells during this sampling event.
2.3 Investigation-derived Waste
Monitoring well purge water was surface applied on an impermeable surface in the vicinity
of the well that generated the water and was allowed to infiltrate and/or evaporate. Care
was taken to not allow purge water to affect nearby receptors (e.g., storm water catch
basins, utilities, or property boundaries).
GHS-4-TER: Groundwater Monitoring Report
Hardy Service Conoco | Delta, Utah
November 26, 2024 | Terracon Project No. 61247154
Facilities | Environmental | Geotechnical | Materials 4
3.0 Laboratory Analytical Methods
All groundwater samples were collected and placed in laboratory-prepared containers,
labeled, and placed on ice in a cooler and submitted to Chemtech-Ford Laboratories, a Utah-
certified analytical laboratory, in Sandy, Utah.
The groundwater samples were submitted for analysis of methyl-tert-butyl ether (MTBE),
benzene, toluene, ethylbenzene, xylenes, and naphthalene (BTEXN), using EPA Method
8260D; total petroleum hydrocarbons – diesel range organics (TPH-DRO), using EPA Method
8015C; and total petroleum hydrocarbons - gasoline range organics (TPH-GRO), using EPA
Method 8260B/C.
The Trip Blank was analyzed for BTEXN, using EPA Method 8206D.
The executed chain-of-custody forms and laboratory data sheets are provided in Appendix
C.
4.0 Data Evaluation
4.1 Groundwater Sample Results
Please refer to Table 1 (Appendix B) for a summary of the groundwater samples collected
during this event.
The only petroleum hydrocarbon reported in the two groundwater samples collected was
TPH-GRO from MW-6 at a concentration of 0.442 milligrams per liter (mg/L), which is less
than half the ISL for TPH-GRO of 1.0 mg/L.
Analytical results from the trip blank analysis reported that all analytes were below
laboratory detection limits indicating that evidence of cross-contamination during the
sampling process was not identified.
5.0 Findings and Conclusions
None of the petroleum constituents analyzed were detected in MW-5, and MW-6 reported
concentrations below Utah’s ISLs, both consistent with previous sampling events. MW-1 was
dry and could not be sampled, so current concentrations of petroleum hydrocarbons in the
source area could not be determined. However, as MW-5 and MW-6 are located generally
cross to down-gradient of the source area, it does not appear any significant migration of
contaminants has occurred.
Assuming groundwater elevations would be higher in the spring, a sampling event
conducted during the spring may allow for a more complete round of groundwater sampling.
GHS-4-TER: Groundwater Monitoring Report
Hardy Service Conoco | Delta, Utah
November 26, 2024 | Terracon Project No. 61247154
Facilities | Environmental | Geotechnical | Materials 5
Alternatively, installation of new deeper monitoring wells in the locations of MW-1, MW-2,
MW-3, and MW-4 would provide a more complete representation of current groundwater
conditions and would allow for future sampling events in any season, if needed.
Terracon appreciates being of service to you on this project. If you have any questions,
require additional information, or need additional assistance, please contact us.
Appendix A
Exhibits
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Exhibit
terracon.comPH. 801-545-8500
6952 S High Tech Dr, Ste B
Midvale, UT
Reviewed By:
Drawn By:
Nov 2024
Date:
61247154
Project No.:
Hardy Service Conoco
98 West Main Street
Delta, Utah
Facility ID 2000349, Release Site GHS
Topographic Site Overview
1
ABA
AST
DATA SOURCES:
ESRI - Basemaps
0 4,000 8,0002,000
Feet
³
Approximate Site Boundary
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Exhibit
terracon.comPH. 801-545-8500
6952 S High Tech Dr, Ste B
Midvale, UT
Reviewed By:
Drawn By:
Nov 2024
Date:
61247154
Project No.:
Hardy Service Conoco
98 West Main Street
Delta, Utah
Facility ID 2000349, Release Site GHS
Potentiometric Surface Map
2
ABA
AST
DATA SOURCES:
ESRI - Basemaps
&
@A
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@A
@A @A@A
82.8
ft
82
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8
5

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t
82
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9

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MW-1
MW-3
MW-5
82.92
MW-6
82.89
MW-4
82.79
BH-1 BH-2MW-2
0 50 10025
Feet
³
³@A Soil Boring
@A Monitoring Well with Groundwater Elevation (ft)
@A Destroyed Monitoring Well
Groundwater Contour (ft)
&Groundwater Flow Direction
Approximate Site Boundary
Appendix B
Data Table
Well ID
(Elev.)a Date
Depth to
Water
Groundwater
Elevationb MTBE Benzene Toluene
Ethyl-
benzene
Total
Xylenes
Naph-
thalene TPH-GRO
TPH-
DRO
0.2 0.005 1 0.7 10 0.7 1 1
0.2 0.3 3 4 10 0.7 10 10
08/20/14 12.17 87.66 <0.001 0.081 0.004 2.14 0.145 1.02 2.68 <1
11/11/14 12.83 87.00 <0.001 0.063 0.002 1.6 0.106 1.25 3.43 <1
02/04/15 13.99 85.84 <0.001 0.031 0.001 0.883 0.029 0.507 2.64 4.4
05/12/15 12.65 87.18 <0.001 0.048 0.004 1.8 0.083 1.74 3.48 4.2
10/17/24 Dry na
08/20/14 11.95 87.60 <0.005 0.047 <0.005 1.04 <0.015 0.276 1.54 <1
11/11/14 12.56 86.99 <0.001 0.027 0.002 0.687 <0.003 0.135 1.32 1.3
02/04/15 13.69 85.86 0.001 0.025 0.001 0.62 0.006 0.086 1.72 <1
05/12/15 12.59 86.96 <0.001 0.018 0.001 0.553 <0.003 0.074 1.10 <1
08/20/14 12.43 87.80 <0.001 <0.001 <0.001 0.213 <0.003 0.009 0.461 <1
11/11/14 13.17 87.06 <0.001 0.001 <0.001 0.382 <0.003 0.005 0.893 <1
02/04/15 14.32 85.91 <0.001 0.001 <0.001 0.104 <0.003 0.004 0.950 <1
05/12/15 12.76 87.47 <0.001 <0.001 <0.001 0.018 <0.003 0.003 0.250 <1
10/17/24
08/20/14 11.69 87.33 <0.001 0.003 <0.001 0.175 <0.003 0.027 0.265 <1
11/11/14 12.26 86.76 <0.001 0.113 0.001 0.011 0.022 0.012 0.535 2.7
02/04/15 13.35 85.67 <0.001 <0.001 0.001 0.065 <0.003 0.011 0.296 <1
05/12/15 12.44 86.58 <0.001 0.001 <0.001 0.123 <0.003 0.048 0.364 <1
10/17/24 16.23 82.79
08/20/14 11.93 87.55 <0.001 0.002 <0.001 0.024 <0.003 0.004 0.225 <1
11/11/14 12.56 86.92 <0.001 0.002 <0.001 0.02 <0.003 0.003 0.629 <1
02/04/15 13.68 85.80 <0.001 0.002 <0.001 0.008 <0.003 <0.002 0.583 <1
05/12/15 12.49 86.99 <0.001 0.001 <0.001 0.004 <0.003 0.002 0.351 <1
10/17/24 16.56 82.92 <0.008 <0.005 <0.012 <0.012 <0.038 <0.012 <0.125 <1
08/20/14 12.23 87.76 <0.001 <0.001 0.003 0.358 0.01 0.145 1.05 <1
11/11/14 13.03 86.96 <0.001 <0.001 0.001 0.152 <0.003 0.029 0.916 1.8
02/04/15 14.19 85.80 <0.001 <0.001 <0.001 0.05 <0.003 0.01 0.433 <1
05/12/15 12.37 87.62 <0.001 <0.001 <0.001 0.023 <0.003 0.009 0.355 <1
10/17/24 17.10 82.89 <0.008 <0.005 <0.012 <0.012 <0.038 <0.012 0.442 <1
BH-2 08/18/14 na na <0.001 0.001 <0.001 0.02 <0.003 <0.002 0.085 <1
a - Monitoring well top-of-casing elevation in feet above mean sea level. b - Groundwater elevation in feet above mean sea level.
1 - ISL - Utah's LUST Program Initial Screening Level for groundwater. 2 - Tier 1 - Utah's LUST Program Risk-based Corrective Action Tier 1 Screening
for groundwater.Bold value exceeds Method Detection Limit (MDL). Color shaded value exceeds screening level. na - not applicable.
MW-5 (99.48)
MW-6 (99.99)
Bailed dry during purge, no recharge; no sample collected.
Well dry; no sample collected.
Well destroyed during construction of the fire station.
Upper casing lid was unable to be removed; no sample collected.
MW-1 (99.83)
MW-2 (99.55)
MW-3 (100.23)
MW-4 (99.02)
Table 1 - Groundwater Analytical Results
Former Hardy Service, Delta
RBCA Tier 12
ISL1
(results reported in mg/L)
Facility ID 2000349 / Release ID GHS
Appendix C
Chain of Custody and Laboratory Data Sheets
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
Terracon IHI
Attn: Steve Maliszeski
6949 South High Tech Drive
Midvale, UT 84047
Work Order: 24J1690
Project: DERR Hardy Service Conoco
10/25/2024
Approved By:
Mark Broadhead, Project Manager
9632 South 500 West Sandy, Utah 84070
Serving the Intermountain West since 1953
801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com
Page 1 of 6
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
Terracon IHI
Steve Maliszeski
6949 South High Tech Drive
Midvale, UT 84047
PO#:
Receipt:
Date Reported:
Project Name:
61247154
10/18/24 11:10 @ 1.1 °C
10/25/2024
DERR Hardy Service Conoco
Sample ID: MW-6
Lab ID: 24J1690-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 10/17/24 11:25
Preparation
Date/Time
Sampled By: Mark Lilly
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 10/23/2410/23/240.005 EPA 8260D/5030BNDBenzene
mg/L 10/23/2410/23/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 10/23/2410/23/240.008 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 10/23/2410/23/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 10/23/2410/23/240.012 EPA 8260D/5030BNDToluene
mg/L 10/23/2410/23/240.038 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 10/23/2410/23/240.125 EPA 8260B/C /5030A/[CALC]0.442Gasoline Range Organics
Diesel Range
mg/L 10/19/2410/19/241.0 EPA 8015 CNDDiesel Range Organics
Project Name: DERR Hardy Service Conoco CtF WO#: 24J1690
www.ChemtechFord.com
Page 2 of 6Page 2 of 6
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
Terracon IHI
Steve Maliszeski
6949 South High Tech Drive
Midvale, UT 84047
PO#:
Receipt:
Date Reported:
Project Name:
61247154
10/18/24 11:10 @ 1.1 °C
10/25/2024
DERR Hardy Service Conoco
Sample ID: MW-5
Lab ID: 24J1690-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 10/17/24 11:57
Preparation
Date/Time
Sampled By: Mark Lilly
Minimum
Reporting
Limit MethodResult
MBTEXn
mg/L 10/24/2410/24/240.005 EPA 8260D/5030BNDBenzene
mg/L 10/24/2410/24/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 10/24/2410/24/240.008 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 10/24/2410/24/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 10/24/2410/24/240.012 EPA 8260D/5030BNDToluene
mg/L 10/24/2410/24/240.038 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 10/24/2410/24/240.125 EPA 8260B/C /5030A/[CALC]NDGasoline Range Organics
Diesel Range
mg/L 10/19/2410/19/241.0 EPA 8015 CNDDiesel Range Organics
Project Name: DERR Hardy Service Conoco CtF WO#: 24J1690
www.ChemtechFord.com
Page 3 of 6Page 3 of 6
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
Terracon IHI
Steve Maliszeski
6949 South High Tech Drive
Midvale, UT 84047
PO#:
Receipt:
Date Reported:
Project Name:
61247154
10/18/24 11:10 @ 1.1 °C
10/25/2024
DERR Hardy Service Conoco
Sample ID: Trip Blank
Lab ID: 24J1690-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 10/17/24 0:00
Preparation
Date/Time
Sampled By: Mark Lilly
Minimum
Reporting
Limit MethodResult
Volatile Organic Compounds
mg/L 10/24/2410/24/240.005 EPA 8260D/5030BNDBenzene
mg/L 10/24/2410/24/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 10/24/2410/24/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 10/24/2410/24/240.012 EPA 8260D/5030BNDToluene
mg/L 10/24/2410/24/240.038 EPA 8260D/5030BNDXylenes, total
Project Name: DERR Hardy Service Conoco CtF WO#: 24J1690
www.ChemtechFord.com
Page 4 of 6Page 4 of 6
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
Terracon IHI
Steve Maliszeski
6949 South High Tech Drive
Midvale, UT 84047
PO#:
Receipt:
Date Reported:
Project Name:
61247154
10/18/24 11:10 @ 1.1 °C
10/25/2024
DERR Hardy Service Conoco
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: DERR Hardy Service Conoco CtF WO#: 24J1690
www.ChemtechFord.com
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