DERR-2024-004897

2410 WEST CALIFORNIA AVENUE • SALT LAKE CITY, UTAH 84104
PHONE [phone] • FAX [phone]
Website: www.wasatch-environmental.com • e-Mail: [e-mail]

Mr. Pierre Langue, AIA, DPLG February 5, 2024
Axis Architects Project No.: 2544-001A
1179 South State Street
Salt Lake City, Utah 84111

SUBJECT: Groundwater Monitoring Results Report
Tejeda’s Market
1179 South Navajo Street
Salt Lake City, Utah
Facility ID 4002596, Release Site OAL

INTRODUCTION

Wasatch Environmental, Inc., (Wasatch) has completed a groundwater monitoring well sampling event at
Tejeda’s Market (Property), located at approximately 1179 South Navajo Street in Salt Lake City, Utah.
The activities consisted of sampling five groundwater monitoring wells on the Property.

BACKGROUND

During environmental due diligence activities for a property transaction, Western Geologic completed a
Phase I Environmental Site Assessment which identified two former gas stations on separate portions of
the Property. A ground-penetrating radar investigation identified an underground anomaly thought to
have been a former tank basin. Western Geologic advanced two soil borings, TM-3 and TM-4, in this
area and soil and groundwater samples were analyzed for volatile organic compounds (VOCs) and total
petroleum hydrocarbons as gasoline-range organics (TPH-GRO). The sample results from TM-3 were
non-detect for groundwater and below the Utah Initial Screening Levels (ISLs) for soil. The sample
results from TM-4 were below the Utah ISLs for soil, but the groundwater sample exceeded the Utah ISL
for benzene. Benzene was identified at a concentration of 0.0403 milligrams per liter (mg/L), which is
greater than the Utah ISL for benzene of 0.005 mg/L.

On March 19, 2021, Wasatch installed, developed, and sampled a temporary groundwater monitoring
well (TM-4A) near TM-4. The analytical result for benzene was 0.0128 mg/L, which is lower than the
Western Geologic grab sample, but still above the Utah ISL of 0.005 mg/L.

On March 31, 2021, Wasatch advanced three soil borings near TM-4A to facilitate the collection of soil
and groundwater samples and attempt to define the extent of the groundwater impacts. TPH-GRO,
benzene, ethylbenzene, naphthalene, and total xylenes were detected above laboratory reporting limits in
one or more of the soil samples; however, the exhibited soil concentrations were well below their
respective Utah ISLs. Benzene was detected above the Utah ISL for benzene in all three of the
groundwater samples.

On May 28, 2021, Wasatch oversaw a geophysical survey of the western portion of the Property in an
attempt to identify the presence of any buried features that could be related to the source of the benzene
detected in groundwater.

The geophysical survey identified several anomalies that indicated the presence of fill material associated
with the former underground storage tank (UST) basin, product piping, and dispenser areas. One
anomaly indicative of a UST was located. Given its size, it was suggested that the UST was likely a
waste oil tank. This information was taken into consideration when sighting additional boring locations.

Wasatch Environmental Inc.
Page 2
On June 10, 2021, Wasatch advanced a total of 11 soil borings. The soil and groundwater sampling
identified an area of elevated benzene in groundwater at the southwest corner of the Property.

On November 11, 2021, Wasatch observed the removal of a 1,000-gallon steel UST and collected
closure soil samples SS-1 and SS-2 at a depth of 5 feet below ground surface (bgs). The results were
greater than the Utah ISLs for total petroleum hydrocarbons as diesel-range organics (TPH-DRO), TPH-
GRO, and total recoverable petroleum hydrocarbons (TRPH). Benzene was not identified at
concentrations greater than laboratory reporting limits; however, the laboratory reporting limits exceeded
the Utah ISLs for benzene.

Wasatch prepared and implemented a corrective action plan (CAP) to address petroleum hydrocarbon
impacts to soil at the removed UST area and the boring location GP-9, which contained TPH-GRO at
concentrations greater than Utah ISLs at a depth of 9 feet bgs. All action levels in the CAP were met in
soil and all soil confirmation samples were below Utah ISLs. No soil that contains petroleum
hydrocarbons at concentrations greater than Utah ISLs are known to remain on the Property.

On October 13, 2022, Wasatch installed four groundwater monitoring wells (MW-1 through MW-4) and
converted a temporary monitoring well (TM-4A) to a permanent groundwater monitoring well by installing
a surface completion consisting of an 8-inch diameter, flush-mounted, traffic-rated, well box set in
concrete. This well, which is within the benzene plume, was labeled MW-5 (Figure 1).

OBJECTIVE

The objective of this sampling event was to characterize the changes to the petroleum hydrocarbon and
benzene groundwater impacts observed after the removal of impacted soil during the CAP
implementation.

GROUNDWATER SAMPLING

On January 23, 2024, the depth to groundwater in each monitoring well was measured using a Solonist
water level meter. The probe was decontaminated between each monitoring well with non-phosphate
detergent (Alconox®), rinsed with distilled water, followed by a second rinse with distilled water.

Groundwater samples were collected from each monitoring well by Wasatch Field Scientist Jeff Hessburg
(Utah Groundwater and Soil Sampler GS 1880). Samples were collected using a peristaltic pump and ¼-
inch outside diameter, disposable, low-density polyethylene tubing. Prior to sample collection, each well
was purged of at least three well casing volumes of water. Once three well casing volumes were purged
from each well, groundwater samples were dispensed into 40-milliliter (mL) glass vials with Teflon® septa
caps. The vials used for collecting the TPH-GRO and aromatic hydrocarbon samples, which were
supplied by the analytical laboratory, contained several drops of hydrochloric acid as a preservative. The
vials were filled slowly until a meniscus formed, then each vial was sealed with a septa cap. This
procedure eliminates headspace within the vials and minimizes the loss of volatiles. The sample vials
were each labeled with the analysis required, sampler’s name, sample identification, sample location,
date, and time of sample collection. The samples were placed in a cooler with ice and transported under
chain-of-custody protocol to Chemtech-Ford for analysis. Groundwater samples were analyzed for TPH-
GRO, methyl-tert butyl ether (MTBE), benzene, toluene, ethylbenzene, total xylenes, and naphthalene
(MBTEXN) by U.S. EPA Method 8260D and TPH-DRO by U.S. EPA Method 8015C.

Wasatch Environmental Inc.
Page 3

SAMPLING RESULTS

Table 1 presents the historical groundwater analytical results. For comparison purposes, Table 1 also
shows the applicable Utah ISLs for petroleum hydrocarbon constituents. The groundwater analytical
reports and chain-of-custody documentation are presented in Appendix A.

As shown on Table 1, benzene was identified in monitoring well MW-2 at a concentration of 0.018 mg/L,
and in MW-4 at a concentration of 0.007 mg/L. Both MW-2 and MW-4 analytical results exceed the Utah
ISLs for benzene which is 0.005 mg/L.

Groundwater measurements and elevation data are presented in Table 2. As shown on Table 2, depth to
groundwater in January 2024 ranged from 9.75 to 10.65 feet below the top of casing. Measurements of
depth to water in September 2023 are similar to those taken in January 2024. A potentiometric surface
map calculated from January 23, 2024, depth to water measurements is presented in Figure 2. The
potentiometric surface map indicates that the hydraulic gradient is generally to the south-southwest at
0.011 feet per foot. This has been consistent since the wells were installed.

CONCLUSIONS AND RECOMMENDATIONS

Results of groundwater sample analysis at the southwestern portion of the Property confirms the
presence of benzene at concentrations just above the Utah ISLs at the southwestern portion of the
Property. Monitoring well MW-5, which was a temporary well and which was converted to a permanent
well, previously contained benzene at a concentration of 0.128 mg/L. Benzene was reported at a
concentration <0.005 mg/L during the past four sampling events. We anticipate that this trend will
continue in monitoring wells MW-2 and MW-4. Additional groundwater monitoring events should continue
to demonstrate that the benzene impacts are decreasing with time.

Our services consist of professional opinions and recommendations made in accordance with generally
accepted environmental engineering principles and practices. This warranty is in lieu of all other
warranties either expressed or implied.

Should you have any questions, please do not hesitate to contact us.

Sincerely,

WASATCH ENVIRONMENTAL, INC.

Christopher J. Nolan, P.G.
Senior Project Geologist
Certified UST Consultant (CC 0118)

Tables

Table 1 – Historical Groundwater Monitoring Results
Table 2 - Well Construction and Groundwater Elevation Data

Wasatch Environmental Inc.
Page 4

Figures

Figure 1 – Monitoring Well Location Map
Figure 2 – Groundwater Gradient Map

Appendix

Appendix A – Laboratory Analytical Report
TR
H
-
D
R
O
TP
H
-
G
R
O
Be
n
z
e
n
e
To
l
u
e
n
e
Et
h
y
l
b
e
n
z
e
n
e
Me
t
h
y
l

t
e
r
t
-
b
u
t
y
l

e
t
h
e
r
Na
p
t
h
t
h
a
l
e
n
e
Xy
l
e
n
e
s

(
t
o
t
a
l
)

MW-1 10/18/2022 <1.0 <0.125 <0.005 <0.012 <0.012 <0.005 <0.012 <0.012
MW-1 5/19/2023 2.3 1.86 0.005 <0.012 0.015 <0.005 0.047 <0.012
MW-1 9/1/2023 <1.0 0.426 0.009 <0.012 0.017 <0.005 <0.012 <0.012
MW-1 1/23/2024 <1.0 <0.125 <0.005 <0.012 <0.012 <0.005 <0.012 <0.012
MW-2 10/18/2022 <1.0 0.746 0.024 <0.012 0.275 <0.005 <0.012 0.289
MW-2 5/19/2023 <1.0 0.656 0.012 <0.012 0.073 <0.005 <0.012 0.252
MW-2 9/1/2023 <1.0 0.239 0.014 <0.012 0.198 <0.005 <0.012 0.027
MW-2 1/23/2024 <1.0 0.218 0.018 <0.012 0.200 <0.005 <0.012 <0.012
MW-3 10/18/2022 <1.0 0.127 0.010 <0.012 0.046 <0.005 <0.012 0.071
MW-3 5/19/2023 <1.0 <0.125 <0.005 <0.012 0.017 <0.005 <0.012 <0.012
MW-3 9/1/2023 <1.0 <0.125 <0.005 <0.012 0.027 <0.005 <0.012 <0.012
MW-3 1/23/2024 <1.0 <0.125 <0.005 <0.012 <0.012 <0.005 <0.012 <0.012
MW-4 10/18/2022 <1.0 0.258 0.013 <0.012 0.056 <0.005 <0.012 0.063
MW-4 5/19/2023 <1.0 0.236 <0.005 <0.012 0.044 <0.005 <0.012 0.037
MW-4 9/1/2023 <1.0 <0.125 0.008 <0.012 0.038 <0.005 <0.012 0.020
MW-4 1/23/2024 <1.0 <0.125 0.007 <0.012 0.023 <0.005 <0.012 <0.012
MW-5 10/18/2022 <1.0 <0.125 <0.005 <0.012 <0.012 <0.005 <0.012 <0.012
MW-5 5/19/2023 <1.0 <0.125 <0.005 <0.012 <0.012 <0.005 <0.012 <0.012
MW-5 9/1/2023 <1.0 <0.125 <0.005 <0.012 <0.012 <0.005 <0.012 <0.012
MW-5 1/23/2024 <1.0 <0.125 <0.005 <0.012 <0.012 <0.005 <0.012 <0.012
Utah Initial Screening Levels 1 1 0.005 1.0 0.7 0.2 0.7 10
NOTES:
< = concentration was below the reporting limit
BOLD = measured concentration exceeds the applicable Utah Initial Screening Level
all concentrations are expressed in milligrams per kilogram (mg/L) except as noted otherwise
Petroleum Hydrocarbons
Sample I.D.Sample
Collection Date
Table 1
Historical Groundwater Monitoring Results
Tejeda's Market
1179 South Navajo Street
Salt Lake City, Utah
11/8/2022 10.00 90.00
11/22/2022 10.08 89.92
5/19/2023 8.97 91.03
9/1/2023 9.73 90.27
1/23/2024 9.75 90.25
11/8/2022 10.66 89.29
11/22/2022 10.72 89.23
5/19/2023 9.95 90.00
9/1/2023 10.59 89.36
1/23/2024 10.65 89.30
11/8/2022 10.14 89.31
11/22/2022 10.21 89.24
5/19/2023 9.40 90.05
9/1/2023 10.09 89.36
1/23/2024 10.24 89.21
11/8/2022 10.23 89.46
11/22/2022 10.30 89.39
5/19/2023 9.27 90.42
9/1/2023 10.14 89.55
1/23/2024 10.20 89.49
11/8/2022 10.32 89.62
11/22/2022 10.35 89.55
5/19/2023 9.51 90.43
9/1/2023 10.20 89.74
1/23/2024 10.28 89.66
Table 2
Well Construction and Groundwater Elevation Data
Tejeda's Market
Salt Lake City, Utah
Measurement
Date
Top of
Casing
Reference
Elevation
(feet)
Depth to
GW
Water
(feet)
GW
Elevation
(feet)
Well ID
1179 South Navajo Street
Screen Interval
(feet from TOC)
MW-1
MW-2
MW-3
MW-4
MW-5
100.00
99.95
99.45
99.69
99.94
8.5' - 18.5'
8.5' - 18.5'
6' - 16'
9' - 19'
8' - 23'
The use or reuse of this information is restricted to the referenced document unless otherwise authorized.
Wasatch Environmental Copyright 2006
Tejeda's Market WEI 2544-001
Figure 1 Monitoring Well Location Map
Tejeda’s Market
Monitoring Well Location
MW-1
MW-2
MW-5
MW-3 MW-4
The use or reuse of this information is restricted to the referenced document unless otherwise authorized.
Wasatch Environmental Copyright 2006
Tejeda’s Market WEI 2544-001
Figure 2 Groundwater Gradient Map January 2024
Tejeda’s Market
MW-4
(89.49)
MW-3
(89.21)
MW-1
(90.25)
MW-2
(89.30)
Groundwater Elevation
Contour
Monitoring Well
*All groundwater elevations are
based on an arbitrary elevation
datum of 100 feet at MW-1
Legend
MW-5
(89.66)
General Groundwater
Flow Direction
Hydraulic Gradient
0.016 feet/foot

Appendix A
Laboratory Analytical Report

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
Wasatch Environmental
Attn: Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
Work Order: 24A1537
Project: Axis Tejadas Market Well Monitoring
1/31/2024
Approved By:
Melissa Connolly, 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
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2544-001A
1/23/24 15:45 @ 1.1 °C
1/31/2024
Axis Tejadas Market Well Monitoring
Sample ID: MW-1
Lab ID: 24A1537-01Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 1/23/24 13:35
Preparation
Date/Time
Sampled By: Jeff Hessburg
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/L 1/29/241/29/241.0 EPA 8015 CNDDiesel Range Organics
MBTEXn
mg/L 1/24/241/24/240.005 EPA 8260D/5030BNDBenzene
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 1/24/241/24/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDToluene
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 1/24/241/24/240.125 EPA 8260B/C 5030A/[CALC]NDGasoline Range Organics
Project Name: Axis Tejadas Market Well Monitoring CtF WO#: 24A1537
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
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2544-001A
1/23/24 15:45 @ 1.1 °C
1/31/2024
Axis Tejadas Market Well Monitoring
Sample ID: MW-2
Lab ID: 24A1537-02Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 1/23/24 12:50
Preparation
Date/Time
Sampled By: Jeff Hessburg
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/L 1/29/241/29/241.0 EPA 8015 CNDDiesel Range Organics
MBTEXn
mg/L 1/24/241/24/240.005 EPA 8260D/5030B0.018Benzene
mg/L 1/24/241/24/240.012 EPA 8260D/5030B0.200Ethylbenzene
mg/L 1/24/241/24/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDToluene
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 1/24/241/24/240.125 EPA 8260B/C 5030A/[CALC]0.218Gasoline Range Organics
Project Name: Axis Tejadas Market Well Monitoring CtF WO#: 24A1537
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
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2544-001A
1/23/24 15:45 @ 1.1 °C
1/31/2024
Axis Tejadas Market Well Monitoring
Sample ID: MW-3
Lab ID: 24A1537-03Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 1/23/24 12:15
Preparation
Date/Time
Sampled By: Jeff Hessburg
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/L 1/29/241/29/241.0 EPA 8015 CNDDiesel Range Organics
MBTEXn
mg/L 1/24/241/24/240.005 EPA 8260D/5030BNDBenzene
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 1/24/241/24/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDToluene
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 1/24/241/24/240.125 EPA 8260B/C 5030A/[CALC]NDGasoline Range Organics
Project Name: Axis Tejadas Market Well Monitoring CtF WO#: 24A1537
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
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2544-001A
1/23/24 15:45 @ 1.1 °C
1/31/2024
Axis Tejadas Market Well Monitoring
Sample ID: MW-4
Lab ID: 24A1537-04Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 1/23/24 11:00
Preparation
Date/Time
Sampled By: Jeff Hessburg
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/L 1/29/241/29/241.0 EPA 8015 CNDDiesel Range Organics
MBTEXn
mg/L 1/24/241/24/240.005 EPA 8260D/5030B0.007Benzene
mg/L 1/24/241/24/240.012 EPA 8260D/5030B0.023Ethylbenzene
mg/L 1/24/241/24/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDToluene
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 1/24/241/24/240.125 EPA 8260B/C 5030A/[CALC]NDGasoline Range Organics
Project Name: Axis Tejadas Market Well Monitoring CtF WO#: 24A1537
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
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2544-001A
1/23/24 15:45 @ 1.1 °C
1/31/2024
Axis Tejadas Market Well Monitoring
Sample ID: MW-5
Lab ID: 24A1537-05Matrix: Water
Flag(s)Units
Analysis
Date/Time
Date Sampled: 1/23/24 11:35
Preparation
Date/Time
Sampled By: Jeff Hessburg
Minimum
Reporting
Limit MethodResult
Diesel Range with silica gel cleanup
mg/L 1/29/241/29/241.0 EPA 8015 CNDDiesel Range Organics
MBTEXn
mg/L 1/24/241/24/240.005 EPA 8260D/5030BNDBenzene
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDEthylbenzene
mg/L 1/24/241/24/240.005 EPA 8260D/5030BNDMethyl tert-Butyl Ether (MTBE)
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDNaphthalene
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDToluene
mg/L 1/24/241/24/240.012 EPA 8260D/5030BNDXylenes, total
Gasoline Range
mg/L 1/24/241/24/240.125 EPA 8260B/C 5030A/[CALC]NDGasoline Range Organics
Project Name: Axis Tejadas Market Well Monitoring CtF WO#: 24A1537
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
Wasatch Environmental
Chris Nolan
2410 West California Avenue
Salt Lake City, UT 84104
PO#:
Receipt:
Date Reported:
Project Name:
2544-001A
1/23/24 15:45 @ 1.1 °C
1/31/2024
Axis Tejadas Market Well Monitoring
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: Axis Tejadas Market Well Monitoring CtF WO#: 24A1537
www.ChemtechFord.com
Page 7 of 8Page 7 of 8
Page 8 of 8