DERR-2024-010058

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FINAL REPORT FOR ADMINISTRATIVE RECORD

REMEDIAL ACTION CLOSURE REPORT
LARK MONOFILL METALS-IMPACTED SOILS
SOUTH VALLEY WATER RECLAMATION PROPERTY
NE CORNER HIGHWAY 111 AND 11800 SOUTH
SOUTH JORDAN, UTAH
KLEINFELDER PROJECT NO. 20201466.001A

JULY 31, 2023

Copyright 2023 Kleinfelder
All Rights Reserved

ONLY THE CLIENT OR ITS DESIGNATED REPRESENTATIVES MAY USE THIS DOCUMENT AND ONLY FOR THE SPECIFIC PROJECT FOR WHICH THIS
REPORT WAS PREPARED

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A Report Prepared for:

Mr. Doug Young
Executive Director
SOJO118, LLC
6150 South Redwood Road, Suite 150
Taylorsville, UT 84123

FINAL REPORT FOR ADMINISTRATIVE RECORD

REMEDIAL ACTION CLOSURE REPORT
LARK MONOFILL METALS-IMPACTED SOILS
SOUTH VALLEY WATER RECLAMATION PROPERTY
NE CORNER HIGHWAY 111 AND 11800 SOUTH
SOUTH JORDAN, UTAH

Prepared by:

________________________________
Dylan Pike, PG
Project Manager I

________________________________
Corinne Hillard, PG
Senior Project Manager

KLEINFELDER
849 West Levoy Drive, Suite 200
Salt Lake City, Utah 84123
Phone: [phone]

July 31, 2023
Kleinfelder Project No.: 20201466.001A

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TABLE OF CONTENTS
___________________________________________________________________________________

Section Page
1 INTRODUCTION ..................................................................................................................... 1
1.1 BACKGROUND ..................................................................................................................... 1
1.2 SITE DESCRIPTION ............................................................................................................... 1
1.3 REGULATORY HISTORY AND CONTAMINANTS OF CONCERN ............................................. 2
1.4 REGULATORY ACTION LEVELS ............................................................................................. 3
1.5 PRIOR SITE INVESTIGATIONS .............................................................................................. 4
2 SOIL REMOVAL ACTIVITIES ..................................................................................................... 6
2.1 PRE-FIELD ACTIVITIES .......................................................................................................... 6
2.2 SOIL REMOVAL ACTIVITIES .................................................................................................. 6
2.2.1 Soil Removal Activities East Lark – Bastian Ditch Drainages .................................. 7
2.2.2 Soil Removal Activities West Lark – Bastian Ditch Channel ................................... 7
2.3 STOCKPILE SAMPLING AND SOIL DISPOSAL ........................................................................ 8
3 POST-REMOVAL CONFIRMATION SOIL SAMPLING ................................................................. 10
4 POST-REMOVAL SOIL ANALYTICAL RESULTS .......................................................................... 12
4.1 ANALYTICAL RESULTS PER LAND USE ............................................................................... 12
4.2 WEST LARK AND COMPOST FACILITY ANALYTICAL RESULTS ............................................ 13
4.3 EAST LARK AND PARK PARCEL ANALYTICAL RESULTS ....................................................... 14
4.4 COMMERCIAL PARCEL ANALYTICAL RESULTS ................................................................... 15
5 ADDITIONAL SITE CHARACTERIZATION ................................................................................. 16
6 MONITORING WELL CLOSURE............................................................................................... 18
7 DATA QUALITY OBJECTIVES AND QA/QC ............................................................................... 19
7.1 FIELD QUALITY ASSURANCE/QUALITY CONTROL .............................................................. 19
7.2 DATA QUALITY ASSESSMENT REVIEW .............................................................................. 19
8 SUMMARY AND CONCLUSIONS ............................................................................................ 22
9 LIMITATIONS ....................................................................................................................... 23
10 REFERENCES ........................................................................................................................ 24

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TABLES
1 Bastian Ditch Stockpiles – Soil Profiling Analytical Results
2 “Clean” Overburden Stockpiles – Soil Profiling Analytical Results
3 Bastian Ditch Channel (West Lark Monofill – Post-Removal Sample Analytical Results)
4 Bastian Ditch Drainages (East Lark Monofill – Post-Removal Sample Analytical Results)
5 Additional Site Characterization – Soil Analytical Results
6 Quality Assurance Samples

FIGURES
1 Site Vicinity Map
2 Proposed Land Use and Prior Site Characterization Results
3 Soil Excavation Boundaries
3.1 Post-Removal Confirmation Samples - Map Legend
3.2-3.9 Post-Removal Confirmation Sample Details
4 Stockpile Sample Locations
5 Commercial Parcel Footprint
6 Characterization Samples

APPENDICES
A Prior Investigation Data and Regulatory Approval Letters
B Standard Operating Procedures
C Trans-Jordan Disposal Summary and Monitoring Well Closure Records
D Post-Removal Closure Sample Information Sheets
E Laboratory Analytical Reports and Chain-of-Custody Documentation

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1 INTRODUCTION
___________________________________________________________________________________

1.1 BACKGROUND
This report documents the metals-impacted soil remediation activities performed on the South Valley
Water Reclamation (SVWR) property, (referred herein as the Lark Monofill or Site), located northeast of
the intersection of Highway 111 (Bacchus Highway) and 11800 South in South Jordan, Utah (see
Figure 1). Kleinfelder conducted the work on behalf of SOJO118, LLC. Portions of the Lark Monofill have
been impacted with lead and arsenic-containing sediment originating from mining areas northwest of
the Site, which were carried to the Site via the Bastian Ditch. This remedial action addressed
metals-impacted soils near the Site’s east and north-east fence lines (adjacent to the Daybreak Bastian
Ditch Drainage area) and within the historical Bastian Ditch channel that ran north-south through the
west half of the Site.

Kleinfelder began the soil remediation activities at the Lark Monofill in May 2021 and completed the
field effort in May 2023. The soil remediation was conducted in accordance with the Lark Monofill
Bastian Ditch Remedial Action Work Plan (Kleinfelder, 2021b) and the Work Plan Addendum One
(Kleinfelder, 2022). Soil remediation was completed for the four-acre substation parcel in the
southeastern corner of the Site in 2021. A Post-Removal Sampling Report was prepared documenting
the Substation Parcel Remediation (Kleinfelder, 2021c), and a No Further Action (NFA) letter was
provided to SOJO118 by the Utah Department of Environmental Quality, Division of Environmental
Response and Remediation (DERR 2021c), dated September 9, 2021. The DERR work plan approval
letters and Substation NFA are included in Appendix A. This report documents the soil remediation
activities conducted on the remainder of the Lark Monofill outside the Substation parcel.

1.2 SITE DESCRIPTION
The Lark Monofill is an approximate 187-acre property located northeast of the intersection of
Highway 111 (Bacchus Highway) and 11800 South in South Jordan, Utah. The Site contains a composting
facility operated by the Trans-Jordan Landfill with an associated maintenance building in the northern
portion of the Site and an inactive, permitted sewage disposal landfill (Lark Monofill) on the
approximate southern two-thirds of the Site. The entire property is fenced with access allowed only for
authorized personnel. The property is bound to the north, west and south by vacant land. The Daybreak
residential development is under construction on the property adjacent to the east. Depth to

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groundwater at the Site is greater than 350 feet below ground surface (bgs). The Site location is
presented on Figure 1.

The proposed future Site development will include residential, commercial, and recreational land use.
Site soils were remediated based on their future land use in accordance with the established land use
standards. The proposed future land uses are described below, and their locations are depicted in
Figure 2.

Commercial Land Use – The Site’s southwestern corner (eight acres) is slated for commercial use, and
the southeastern corner (four acres) will house an electric power substation.
Recreational Land Use – The Site’s northeastern corner (approximately 17 acres) is slated for
development as a public park.
Residential Land Use – The remainder of the Site is intended for possible residential development. The
Site’s northern 17-acre triangle is currently operated for commercial use by Trans-Jordan Landfill
for their composting operation. A portion of the composting area may eventually be converted
to residential land use.
Roadway – UDOT is planning to relocate Highway 111 from the west side of the Site to traverse the
center of the Lark Monofill property from north to south. The proposed right-of-way would be
170 feet wide and would run along the east side of the compost facility and through the
approximate center of the Monofill.

1.3 REGULATORY HISTORY AND CONTAMINANTS OF CONCERN
The contaminants of concern (COCs) are lead and arsenic in soil, deposited where the Bastian Ditch
waterway and its tributaries crossed the Site. The historical Bastian Ditch (a.k.a. Ditch) traversed the
approximate center of the Site from north to south for approximately one mile. Mining-impacted water
from Bingham Canyon was gravity fed through the Bastian Ditch from at least 1937 through
approximately 1985. The mine water carried tailings and sediment known to have contained elevated
levels of lead and arsenic. The Bastian Ditch is a feature of the Kennecott South Zone Comprehensive
Environmental Response, Compensation and Liability Act (CERCLA) Operable Unit 5 (OU5) Arco Tailings.

Based on the source of the metals impacts originating from historical mining operations, the Utah
Department of Environmental Quality Division of Waste Management and Radiation Control (DWMRC)
issued a concurrence letter (DWMRC, 2020) stating that “soils excavated from the Bastian Ditch are
excluded from the hazardous waste regulation according to Utah Administrative Code R135-261-4(b)(7)
and 40 CFR 261.4(b)(7), also known as the Bevill Exclusion. This determination would allow the

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qualifying waste to be disposed of in a Class I permitted solid waste landfill (e.g., Trans-Jordan Landfill).”
A copy of the letter is included in Appendix A.

In approximately 1986, the Site was permitted as a sewage disposal facility monofill. Liquid sewage
transported from the SVWR wastewater treatment plant was buried in trenches at the Site. The sewage
disposal ceased in approximately 1999. Remediation of the sewage trenches is being overseen by the
Utah Division of Water Quality (DWQ) and conducted by another consultant.

1.4 REGULATORY ACTION LEVELS
A 2015 joint Technical Memorandum prepared by the DERR, and U.S. Environmental Protection Agency
(USEPA) Region 8 (the Agencies) established soil cleanup action levels for the Kennecott North and South
Zone Operable Units, including the following standards for the Bastian Ditch (OU5):

· OU5 Agricultural Standards – 8,500 mg/kg lead and 100 mg/kg arsenic,
· OU5 Industrial Standards – 4,414 mg/kg lead and 261 mg/kg arsenic,
· OU5 Recreational Standards – 2,207 mg/kg lead and 283 mg/kg arsenic,
· Sitewide Unrestricted Standards – 500 mg/kg lead and 50 mg/kg arsenic,
· Bastian Ditch Daybreak Residential Standards – 700 mg/kg lead and 100 mg/kg arsenic, and
· Bastian Ditch Daybreak Commercial Standards – 2,000 mg/kg lead and 450 mg/kg arsenic.

Due to the undeveloped nature of the area at the time the standards were established, commercial and
residential land use standards were not established for most of the Kennecott Operable Units, except
for the OUs within the Daybreak Development. Due to a lack of an established area-wide commercial
standard, SVWR requested the assignment of the same Commercial Land Use Standards for the Bastian
Ditch-impacted soil on the Lark property that were established for the Bastian Ditch-impacted soil on
the adjacent Daybreak property. The DERR approved the use of the Daybreak Commercial Land Use
Standards for the Lark Monofill removal action via email dated August 5, 2021 (DERR, 2021b), which was
documented in the final approved Lark Remedial Action Work Plan. The DERR approval letters for the
Lark Remedial Action Work Plan and Work Plan Addendum One, as well as the DERR cleanup standards
approval email, are included in Appendix A.

Rio Tinto remediated metals-impacted soils in the Daybreak Residential Development (located adjacent
to the east and north of the Site) in 2015 to the Daybreak Residential Standards. In recognition that the
source of the soil impacts was the same (Bastian Ditch tributaries) on both sides of the fence line

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between the Lark and Daybreak properties, the DERR approved the use of the Daybreak Residential
Land Use Standards (700 mg/kg lead and 100 mg/kg arsenic) for the Bastian Ditch Drainage tributaries
that extend east of the main Bastian Ditch channel on the eastern half of the Site (DERR, 2021b, and
Appendix A).

1.5 PRIOR SITE INVESTIGATIONS
Several Site investigations were conducted by Kleinfelder beginning in 2019 as listed in Section 8,
References. These include a Phase I Environmental Site Assessment (ESA) (Kleinfelder, 2020a), Phase II
ESA (Kleinfelder, 2020b), and Bastian Ditch Waste Profiling Report (Kleinfelder, 2021a). The findings of
those investigations are summarized below and were used as the basis for the Lark Remedial Action
Work Plan (Kleinfelder, 2021b).

The investigations identified elevated metals concentrations in shallow soils along the historical Bastian
Ditch main channel that ran north-south through the approximate center of the Site and along the
Bastian Ditch Drainage tributaries/irrigation ditches that ran east of the main Ditch near the east and
north-east fence lines (adjacent to the Daybreak Development). In general, the Bastian Ditch impacted
soils were observed in a shallow channel extending 4 to 6 feet bgs, with a width of generally 8 to 12 feet.
The highest metals impacts were detected in a narrow, yellow-stained band, generally less than one foot
thick, near the base of the Ditch channel. Metals-impacted soil in the Bastian Ditch Drainage tributaries,
near the northeastern and eastern fence lines, generally contained lower metals concentrations, were
minimally stained, and extended to depths of 2 to 4 feet bgs. The Phase II Site Characterization
analytical results are illustrated in Figure 2. The 2019-2020 soil investigation results can generally be
summarized as follows:

· Soil with lead and arsenic concentrations above the Commercial Land Use Standards were
identified in portions of the main Bastian Ditch channel.
· Soil with lead and arsenic concentrations below the Commercial Land Use Standards, but above
the Unrestricted Land Use Standards, were identified along the eastern and northeastern fence
lines, at the north end of the Site, and within the main Bastian Ditch channel.
· Soil with lead and arsenic concentrations below the Unrestricted Land Use Standards were
identified beneath the paved Trans-Jordan Composting Facility and in many areas along the
Ditch tributaries near the eastern and northeastern fence lines.

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· During RioTinto’s remediation of the Daybreak Bastian Ditch Drainage in 2015, metals-impacted
soils were left on Daybreak property along the Site’s eastern and northeastern fence lines
adjacent to the Lark Monofill. The Daybreak Post-Removal Sampling Report (Kennecott-Rio
Tinto, 2016) indicates where metals-impacted soils remain on Daybreak within approximately
five feet of the property line fence. These impacted soils were observed by Kleinfelder during
the Lark soil removal activities and were left undisturbed. Figures from the Kennecott-Rio Tinto
closure report showing the location of impacted soils remaining on Daybreak property along the
Site boundaries are included in Appendix A.

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2 SOIL REMOVAL ACTIVITIES
___________________________________________________________________________________

The Lark Monofill soil remediation activities began in May of 2021 and were completed in May 2023.
Kleinfelder personnel directed the field activities and Richins General Engineering (Richins) was
contracted by SOJO118 to provide the excavation equipment and conduct the earthmoving. Excavation
and soil sampling activities were conducted in accordance with the project workplan and following the
standard operating procedures (SOPs) included in Appendix B. The remedial excavation and soil
sampling methodologies are described below.

2.1 PRE-FIELD ACTIVITIES
Prior to the start of field activities, the following tasks were completed:

· Blue Stakes of Utah was notified prior to the removal operations to identify and mark the
location of buried utilities.
· Richins prepared the required plans and secured construction permits prior to beginning the
field activities, including:
o Land Disturbance permit from the City of South Jordan,
o Construction Stormwater Pollution Protection Plan (SWPPP), and
o Fugitive Dust Control Plan.
· Kleinfelder and Richins held a pre-construction kick-off and health and safety meeting.

2.2 SOIL REMOVAL ACTIVITIES
Richins, under Kleinfelder’s direction, used a tracked excavator to excavate soils impacted with lead and
arsenic at concentrations above the Site’s designated land use standards. Water trucks were used to
control dust during soil loading and transportation on the dirt haul roads. The excavated soil was
transported to either the Trans-Jordan Landfill or the Site’s commercial parcel in accordance with the
approved work plan. Tasks related to the removal action are described below.

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2.2.1 Soil Removal Activities East Lark – Bastian Ditch Drainages
Soil excavation began along the south end of the Site’s east fence line and proceeded north, then west
following the fence. The metals-impacted soil was removed in approximately six-inch intervals to allow
Kleinfelder to screen the in-situ soil with a hand-held x-ray fluorescence (XRF) meter. Readings were
taken continuously from the post-removal surfaces, including both the floor and sidewalls of the
excavation. XRF readings indicating the metals concentrations were likely to exceed the Daybreak
Residential Standards were removed as “impacted.” The impacted soil excavation boundaries are shown
on Figure 3.

Based on the prior Site characterization and XRF screening during removal, the soils excavated from the
Site’s east and northeast fence lines contained lead and arsenic concentrations below the Commercial
Land Use Standards and were loaded directly into trucks and hauled to the commercial parcel
established in the southwestern corner of the Site, in accordance with the DERR-approved work plan.

Soils impacted with lead and arsenic at concentrations above the Daybreak Residential Standards were
excavated along the east and northeast fence lines adjacent to the Daybreak property generally to
depths of 2 to 5 feet and widths ranging from 4 feet to 25 feet. Approximately 40,000 cubic yards of soil
were removed from the East Lark area and placed in the commercial parcel. Upon removal of the
impacted soils, post-removal confirmation soil samples were collected from the ground surface and
sidewalls of the excavations as described in Section 3.

Two areas of impacted soil within East Lark were excavated to approximately 15 feet in depth, referred
to as the “KT-8” and “G-26” excavations. These areas align with an apparent former Bastian Ditch
tributary that crossed the northeast portion of the Lark Monofill and continued east onto the Daybreak
property. Due to the discovery of this apparent historical buried drainage, Kleinfelder conducted
additional site characterization to assess the nature and extent of the deeper impacts, as discussed in
Section 5.

2.2.2 Soil Removal Activities West Lark – Bastian Ditch Channel
Based on the prior Site characterization and in accordance with the work plan, soils excavated from the
Bastian Ditch channel were either loaded directly into trucks and transported to the Trans-Jordan
Landfill or stockpiled adjacent to the excavation and characterized to assess the appropriate disposal
location. As with the East Lark soils, the Bastian Ditch soil excavation was directed by Kleinfelder
personnel screening soils using XRF analyzers. XRF readings indicating that metals concentrations were

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likely to exceed the Unrestricted Land Use Standards were removed as “impacted.” A small portion of
the Bastian Ditch alignment overlapped the commercial parcel in the southwestern corner of the Site.
The Ditch soils within the commercial parcel were excavated, stockpiled, and sampled to assess whether
they were suitable to remain in the commercial parcel.

Metals-impacted soils were excavated along the Bastian Ditch main channel generally to depths of 6 to
10 feet and widths ranging from 20 feet to 50 feet. In two areas, shallow impacted soils (likely from
surface overflow) were identified east (topographically downgradient) of the main Bastian Ditch
channel. The shallow overflow locations are shown on Figure 3 as wider areas within the Ditch
excavation, one area is located just south of the paved compost facility and the other is near the
southern property line. These areas appear to have received Bastian Ditch overflow water. The overflow
areas were excavated to a depth of approximately three feet.

2.3 STOCKPILE SAMPLING AND SOIL DISPOSAL
Soils excavated from the Bastian Ditch channel and overflow areas were stockpiled adjacent to the
excavation. The impacted soil stockpiles were characterized to assess their appropriate disposal
location. The impacted stockpiles were sampled at a frequency of one composite sample (10 aliquots)
per approximate 100 cubic yards of stockpiled soil. The samples were collected in accordance with the
project work plan (Kleinfelder, 2021b) and sampling SOPs. All soil aliquots from a given sample were
combined into one zip-lock sample bag. The material was homogenized in the bag by shaking and
kneading the contents.

The impacted stockpile samples were labeled with the prefix “EP” and analyzed at an accredited
laboratory for total concentrations of lead and arsenic using USEPA Method 6010B. A total of
310 excavation stockpile samples were submitted for laboratory analysis. The stockpile sample locations
are depicted in Figure 4. Some soils with higher metals concentrations, based on the prior Site
characterization data and XRF screening, were directly loaded into trucks and hauled to the Trans-Jordan
Landfill for disposal.

The “EP” stockpile soil analytical results were used to determine the appropriate disposal location for
each stockpile. The impacted stockpile analytical results and stockpile disposal locations are presented
in Table 1. In accordance with the work plan, stockpiled soils with metals concentrations below the
Commercial Land Use Standards were placed in the commercial parcel. Approximately 32,000 cubic
yards of stockpiled soils were transported to the commercial parcel. Analytical results of samples
collected from the Bastian Ditch excavated stockpiles indicate 82 percent (247) of the stockpiles placed

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in the commercial parcel had lead and arsenic concentrations below the Unrestricted Land Use
Standards. Upon the additional loading, hauling, and spreading of the stockpiles in the commercial
parcel, the final lead concentrations of soil placed in the commercial parcel are likely to be primarily
below the Unrestricted Land Use Standards.

Stockpiled soils exceeding the commercial standards were hauled to the Trans-Jordan Landfill for
disposal. Approximately 1,420 cubic yards of impacted soil were disposed of at the Trans-Jordan Landfill.
A summary of the loads disposed of at the Trans-Jordan Landfill, including disposal dates and load
weights is provided in Appendix C. Upon removal of the impacted soils, post-removal confirmation soil
samples were collected from the ground surface and sidewalls of the excavations and from the impacted
stockpile footprints, as described in Section 3.

During the course of the soil removal activities, clean overburden was identified in some locations via
XRF screening. To reduce the costs associated with hauling and/or disposing of clean soil, Kleinfelder
directed Richins to stockpile the “clean” overburden adjacent to the excavations. The overburden
stockpiles were sampled at a frequency of one composite sample (10 aliquots) per approximate
100 cubic yards of stockpiled soil. The overburden samples were labeled with an “SP” prefix and
analyzed for total concentrations of lead and arsenic using USEPA Method 6010B. A total of
116 overburden stockpile samples were analyzed. Following confirmation that the lead and arsenic
concentrations in the soil in each overburden stockpile were below the Unrestricted Land Use
Standards, the stockpiles were used to backfill portions of the excavations. The overburden stockpile
analytical results are presented in Table 2.

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3 POST-REMOVAL CONFIRMATION SOIL SAMPLING
___________________________________________________________________________________

Following excavation of the metals-impacted soils, Kleinfelder collected post-removal composite soil
samples from the excavation ground surface and sidewalls to document the lead and arsenic
concentrations remaining in Site soils. The post-removal samples were labeled as follows:

· East Lark fence line excavation post-removal samples were labeled with the prefix “FG” for
ground surface samples and “FS” for excavation sidewall samples.
· Post-removal samples from larger excavations in the East Lark area were labeled with the
excavation identifier, i.e., KT-8, C-7, and G-26.
· Bastian Ditch excavation post-removal samples were labeled with the prefix “DG” for ground
surface samples and “DS” for excavation sidewall samples. The “DS” samples are labeled with
the sample number, then “W” for west sidewall and “E” for east sidewall.
· Post-removal samples followed by an “X” denote locations where the original post-removal
sample exceeded the designated land use standard and additional soil was removed. The
“X” sample replaces the original closure sample (i.e., DS-9Wx).
· Post-removal samples collected from the ground surface after removal of the Bastian Ditch
impacted stockpiles were labeled with the prefix “ESG.”
· Samples collected from remaining in-situ soils at the property lines were labeled with the
prefix “R.”

The samples were collected in accordance with the project work plan (Kleinfelder, 2021b) and sampling
SOPs. The post-removal composite ground surface samples were collected with 5 aliquots spaced at
50-foot linear intervals representing approximately 200 linear feet of the excavation, with additional
aliquots spaced 20 to 30 feet laterally depending on the width of the excavation. All soil aliquots from a
given sample were combined into one zip-lock sample bag. The material was homogenized in the bag by
shaking and kneading the contents.

Post-removal excavation sidewall samples were collected with aliquots spaced at 50-foot intervals, each
representing 200 linear feet. The sidewall samples were collected as a six-inch vertical sample from the
soil interval that demonstrated the highest metals concentrations prior to removal. In two larger
excavations (KT-8 and C-7), multiple post-removal sidewall samples were analyzed as single point
samples rather than composites to characterize the remaining soils more thoroughly. A total of

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69 post-removal ground and sidewall samples were collected from the East Lark area and
127 post-removal ground and sidewall samples were collected from the West Lark area.

The sample locations were surveyed using a hand-held global positioning system (GPS) unit capable of
approximately one-meter accuracy. The post-removal sample locations are shown on Figures 3-1
through 3-9. Sample Information Sheets detailing each sample’s composite configuration, sample
purpose, location, collection date, southernmost coordinate, and sample photographs are included in
Appendix D.

The soil samples were submitted to American West Analytical Laboratory (AWAL) or Pace Analytical
Laboratory (Pace) for analysis of lead and arsenic by USEPA methods SW846-3050B (sample
preparation) and SW846-6010B (sample analysis). Chain-of-custody procedures were followed for the
handling of the samples; the chain-of-custody forms are included with the laboratory analytical reports
in Appendix E.

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4 POST-REMOVAL SOIL ANALYTICAL RESULTS
___________________________________________________________________________________

4.1 ANALYTICAL RESULTS PER LAND USE
The analytical results were compared to the applicable land use standards for each area as illustrated in
Figure 2. The remediation goals by removal area are listed below.

West Lark (~83 acres) and Compost Facility (~17 acres)

· Sitewide Unrestricted Land Use Standards – 500 mg/kg lead and 100 mg/kg arsenic.
(The Site’s northern 17-acre triangle is currently operated for commercial use by Trans-Jordan
Landfill for their commercial composting operation. A portion of this area may eventually be
developed for residential land use west of the Highway 111 corridor.)

East Lark (~58 acres)

· Bastian Ditch Daybreak Residential Standards – 700 mg/kg lead and 100 mg/kg arsenic.

Park Parcel (~17 acres)

· OU5 Recreational Standards – 2,207 mg/kg lead and 283 mg/kg arsenic.

Commercial Parcel (~8 acres)

· Bastian Ditch Daybreak Commercial Standards – 2,000 mg/kg lead and 450 mg/kg arsenic.

Highway 111 Roadway

· OU5 Industrial Standards – 4,414 mg/kg lead and 261 mg/kg arsenic.
(UDOT is planning to relocate Highway 111 to traverse the center of the Lark Monofill property
from north to south as depicted on Figure 2.)

The laboratory reports indicate lead and arsenic concentrations in all post-removal confirmation soil
samples are below the applicable cleanup standards for each designated land use. The analytical results
are summarized in Tables 3 and 4, along with sampling information including sample date, sample

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interval/depth, sample purpose, sample configuration, associated cleanup action level, and analytical
results. The laboratory analytical reports are included in Appendix E. A discussion of the post-removal
sample analytical results by land use area is presented below.

4.2 WEST LARK AND COMPOST FACILITY ANALYTICAL RESULTS
The historical Bastian Ditch channel ran north-south beneath the Trans-Jordan compost facility and the
West Lark property. Both areas are being considered for residential land use and were remediated to
the Unrestricted Land Use Standards of 500 mg/kg lead and 50 mg/kg arsenic. None of the post-removal
Bastian Ditch ground or sidewall samples contained lead or arsenic concentrations exceeding the
Unrestricted Land Use Standards. Additionally, none of the post-removal impacted-stockpile footprint
samples contained metals concentrations exceeding the Unrestricted Standards. The West Lark
post-removal confirmation sample analytical results are summarized in Table 3. The sample locations
are illustrated in Figures 3-2, 3-3, 3-4, 3-5, and 3-6.

Prior characterization of the historical Bastian Ditch channel beneath the paved Trans-Jordan Compost
Facility identified in-situ metals concentrations below the Unrestricted Land Use Standards under most
of the paved portion of the compost facility (see Figure 2). This unimpacted portion of the Bastian Ditch
alignment was not excavated during the remedial activities. At the northern extent of the Ditch
alignment, sample KP-2C, located west of the compost facility maintenance building and approximately
two to three feet deep, had a lead concentration of 799 mg/kg. This exceeds the Unrestricted Standard
but is below the Commercial Standard. The area represented by KP-2C was not excavated during the Site
remediation due to the presence of multiple utilities crossing the area. The area is located directly
adjacent to the proposed Highway 111 right-of-way and is currently used for commercial purposes. Due
to its location, it is unlikely to be converted to residential use. If converted to residential use, the
demolition of the maintenance building and associated utilities for road construction would facilitate
removal of these soils.

At the far north end of the compost facility a side drainage of the Bastian Ditch crosses the Site from
west to east through a culvert under the facility access road and in open ditch west and east of the road.
The Ditch drainage lies completely within the proposed Highway 111 right-of-way. The impacted soils
located east of the access road and represented by sample KP-1 (see Figure 2 and Table 5) were
excavated during Site remediation. Impacted soils were identified beneath the drainage west of the
road at depths of 10 to 13 feet, represented by sample KP-1W. Lead concentrations reported in sample
KP-1W exceed the Unrestricted Standard but are below the Commercial Standard. The impacted soils

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are overlain by ten feet of “clean” soil. The deep soil impacts are compliant with the proposed land use
as a roadway and were not removed during this remediation.

The Bastian Ditch impacted soils were excavated up to the Site property lines. The Ditch channel
sediments extended off-Site and were not removed at three locations on the southern property line
abutting 11800 South Street and one area on the northeastern property line adjacent to the Daybreak
Development. Soil samples (labeled R-1 through R-4) were collected at these locations to characterize
the metals concentrations remaining at the property lines. The analytical results are presented in
Table 3. Lead concentrations detected in soil remaining at the property lines exceeded the Unrestricted
and Daybreak Residential Land Use Standards and in one location on the southern property line
exceeded the Commercial Land Use Standard. The locations of the “R” samples collected at the property
lines are presented in Figures 3-2, 3-5, and 3-6.

4.3 EAST LARK AND PARK PARCEL ANALYTICAL RESULTS
The Bastian Ditch drainages traversed the Monofill’s northern and eastern fence lines, impacting the
park parcel and East Lark areas. The East Lark area is proposed for residential land use and was
remediated to the Daybreak Residential Land Use Standards of 700 mg/kg lead and 100 mg/kg arsenic.
Although the park parcel is proposed for recreational land use, the Bastian Ditch Drainage soils in the
park parcel were remediated to the more stringent Daybreak Residential Standards because the park
boundaries had not been established by the time of the remedial action. None of the post-removal
samples collected in either area exceeded the Daybreak Residential Land Use Standards. The
post-removal soil confirmation sample analytical results are summarized in Table 4. The confirmation
sample locations are illustrated in Figures 3-7, 3-8, and 3-9.

Soils impacted with lead and arsenic at concentrations above the Daybreak Residential Standards were
excavated to the property lines. Metals impacted soils were left on the Daybreak property along the
east and north fence lines as depicted by Rio Tinto in their 2015 remediation report (Appendix A).
Kleinfelder did not collect samples of the soils remaining on Daybreak property.

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4.4 COMMERCIAL PARCEL ANALYTICAL RESULTS
In the southwestern corner of the Site, the Bastian Ditch channel overlapped the Commercial Parcel for
approximately 250 feet. The Bastian Ditch soils within the commercial parcel boundaries were
excavated, stockpiled, and characterized in the same manner as the Ditch soils within the proposed
residential areas. None of the post-removal samples collected in the commercial parcel contained lead
or arsenic at concentrations above the Daybreak Commercial Land Use Standards. The commercial
parcel post-removal sample analytical results are presented in Table 3. The confirmation sample
locations are illustrated in Figure 3-5.

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5 ADDITIONAL SITE CHARACTERIZATION
___________________________________________________________________________________

Kleinfelder identified soil with lead concentrations exceeding the Daybreak Residential Standard at
depth in the G-26 excavation, located in the northwestern corner of the Park parcel. The G-26 area was
excavated to 15 feet bgs, and the soil hauled to the commercial parcel. A narrow band of soil with lead
concentrations above the Residential Standard but below the Recreational Standard (at 899 mg/kg lead)
was left in-situ at approximately 17 to 18 feet bgs, as represented by sample G-26 17-18 on Table 5.
Because the impacted soil remaining beneath the G-26 excavation was overlain by 17 feet of
unimpacted soil, and the impacted soil did not exceed the Recreational Land Use Standards that apply to
the area, the material was not removed. Additional soil characterization was subsequently conducted to
assess the lateral extent of the deeper impacts and whether those impacted soil concentrations were
below the Recreational Standards applicable to the area. The additional characterization methods and
results are described below.

Initially, several test pits were excavated in the vicinity of the G-26 excavation. The impacted soils were
identified in a white or light-colored silty sand underlying coarser sands and gravels. The test pits were
generally excavated in one- to two-foot lifts and extended laterally until the light-colored silty-sand layer
was encountered or to 20 feet below grade. The soil intervals were screened with an XRF. Soil intervals
exhibiting the highest apparent lead impacts were selected for laboratory analysis from each test pit.
Additional test pits were then excavated further southeast of G-26, following the apparent course of the
deep soil impacts. In all, 127 test pits were excavated and 199 soil samples were collected and
laboratory-analyzed to characterize this portion of the Site and assess for the presence of impacted soils
at depth. The characterization test pit locations are shown on Figure 6. Table 5 presents the analytical
results, sample location, proposed land use action level, and final disposition of the sampled soil.

The analytical results indicate all samples collected from test pits excavated within the Park Parcel
contained lead and arsenic at concentrations below the OU5 Recreational Land Use Standards of
2,207 mg/kg lead and 283 mg/kg arsenic, with a maximum reported lead concentration of 1,090 mg/kg
and maximum reported arsenic concentration of 194 mg/kg. This arsenic result was an anomaly, with
the next highest arsenic reported at 48.2 mg/kg. In general, soils impacted with lead and arsenic at
concentrations above the Daybreak Residential Standards but below the Recreational Standards were
identified in an approximate one-foot-thick layer of silty-sand at depths ranging from 15 to 20 feet on
the west side of the Park parcel near G-26 and becoming more shallow moving southeast with the
impacts identified at depths of six to seven feet in test pit G-49. The approximate dimensions of the

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deep soil impacts (above the Daybreak Residential Standards) are 700 feet long, 60 feet wide, and
approximately one foot thick. The impacts appear to align with the Bastian Ditch Drainage that extends
east onto Daybreak property in the vicinity of the KT-8 excavation, where deeper soil impacts were
identified and removed. Figure 6 illustrates the test pit analytical results and the extent of the deeper
impacted soils on the Park parcel.

All characterization samples collected from test pits within the East Lark residential parcel contained
lead and arsenic at concentrations below the Daybreak Residential Land Use Standards, except for
samples from test pit C7 near the east fence line. As indicated on Table 5 and Figure 6, soils in the
vicinity of test pit C7 were excavated and hauled to the commercial parcel.

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6 MONITORING WELL CLOSURE
___________________________________________________________________________________

As part of the reclamation activities, Kleinfelder supervised the abandonment of three of the
four groundwater monitoring wells that were present on the Site. The four wells (MW-1 through MW-4)
were previously installed at the Site by SVWR as required by the Lark Monofill operating permit. The
wells were constructed of four-inch-diameter PVC and extended 160 to 180 feet below ground surface.
Two wells were located along the Site’s southeastern fence line (MW-3 and 4), one along the northeast
fence line (MW-2) and one in the 11800 South roadway on the far southwest corner of the Site (MW-1).

Kleinfelder received permission from the Salt Lake County Health Department to permanently abandon
the wells. MW-2, 3, and 4 were abandoned by Zimmerman Well Service in November 2021 by filling the
casings with neat cement and bentonite grout using a tremie pipe and grout pump. The surface
completions were removed, and the well casings were cut off at five feet bgs. The fourth monitoring
well (MW-1), located in the west bound lanes of 11800 South, was not abandoned at the direction of
SOJO118 as it did not hinder with the Site soil remediation activities. A well location map and the well
closure permit documentation are included in Appendix C.

Additionally, a former SVWR water supply well remains on Lark property in a fenced-off triangle located
directly south of 11800 South Street. The well previously supplied water for the Lark Monofill operations
and was piped to a water holding tank on the west side of the Site. We understand this well is dry and
no longer used for a water supply.

RioTinto Kennecott owns a triple-nested groundwater monitoring well installed on the Lark property
(labeled BSG 1153 A, B, and C), located midway along Lark’s east fence line. The Kennecott wells are not
located in an area proposed for soil remediation and were not disturbed during the soil remediation
activities.

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7 DATA QUALITY OBJECTIVES AND QA/QC
___________________________________________________________________________________

7.1 FIELD QUALITY ASSURANCE/QUALITY CONTROL
Quality Assurance (QA) and quality control (QC) procedures associated with the Lark Monofill soil
removal were implemented to produce data that are accurate, credible, and representative of
conditions at the Site. Kleinfelder’s QA/QC procedures for this project included:

· Careful record keeping and documentation,
· Use of appropriate equipment and decontamination procedures,
· Split Quality Assurance samples,
· Documentation of Chain-of-Custody, and
· The samples were submitted to Pace or AWAL, both Utah-certified laboratories, that follow
QA/QC procedures consistent with USEPA standards. Laboratory QA/QC samples included
method blanks, matrix spikes, duplicates, and calibration check samples. QA statements for the
lab samples are included with the laboratory reports in Appendix E.

Quality control for the sampling program included the use of standardized sample collection and
handling methods, documenting pertinent field information, and keeping chain-of-custody records as
prescribed herein. Single-use, disposable sampling tools were used for sample collection, or
non-disposable sampling equipment was decontaminated between each sample location.

7.2 DATA QUALITY ASSESSMENT REVIEW
The purpose of data quality assessment is to assure that data generated under the QA/QC program is
reconciled, accurate, and consistent with program data quality objectives (DQOs). The quality of the
data was assessed based on precision, accuracy, completeness, representativeness, and comparability.
The collected samples were analyzed for total arsenic and lead. Samples were analyzed at Pace and
AWAL.

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A review of the laboratory analytical reports indicated all sample analyses were performed within
holding times, the samples were analyzed following the correct methods, all instruments and calibration
check requirements were met, and concentrations of either lead or arsenic were not reported in the
method blanks above the laboratory detection limits.

Precision is the degree to which a measurement is reproducible and is quantitatively measured by
calculating the Relative Percent Difference (RPD) of two measurements. RPD is defined as:

=( 1 − 2)
1 + 2)2 × 100
Where A1 = Analytical result from the original sample
A2 = Analytical result from the duplicate

Laboratory precision was assessed by calculating the RPD between the original sample and its field
duplicate. Field duplicate soil samples were collected at a frequency of approximately 10% of the soil
samples submitted to the analytical laboratory. The samples were split with one portion submitted as a
standard analytical sample and one portion as a blind duplicate. The data quality objective for the split
sample analyses is an RPD of 35% or less. Of the 154 duplicate analyses, 134 (or 87%) met the RPD goal
of 35% or less, as presented in Table 6. The samples that did not meet the RPD goal are likely due to the
non-homogeneous nature of soil samples.

Accuracy is a determination of how close the measurement is to the true value and was assessed by the
laboratory as part of their QA/QC procedures by review of the percent recovery in the matrix spike (MS),
matrix spike duplicate (MSD), and laboratory control sample (LCS) analyses, and compared to the
laboratory’s control limits. Percent Recovery is defined as:

% Recovery = [ 100 (measured value/ true value)]

For this data set:

· The percent recoveries for the LCS analyses were within the established control limits.
· The percent recoveries for the MS analyses were within the established control limits.
· The percent recoveries for the MSD analyses were within the established control limits.

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Percent Completeness was measured as the number of samples that were within the established
control limits for all quality control parameters. With 821 soil samples collected, each analyzed for total
lead and arsenic, there are 1,642 analytical results. Of the 1,642 analytical results, 4 total arsenic and
22 total lead analytical results were qualified, which represents 1.6% of the sample analyses performed.
As such, 98.4% of the sample results were not qualified and are considered valid, which exceeds the
DQO of 90% valid data.

Representativeness was assessed by verifying the samples were analyzed within their analytical method
holding times and that method blanks do not report any contamination. A review of the laboratory
analytical reports indicated the sample analyses were performed within holding times and the method
blanks did not report concentrations of either lead or arsenic.

Comparability was assessed by reviewing the units of measure reported in the analytical results
compared to the units of measure established for the action levels and by using analytical methods that
are comparable to other similar studies in the same area and under the same regulatory framework. The
units of measure reported by the laboratory are the same units of measure for the designated land use
standards and the analytical methods employed are consistent with similar studies conducted in the
area.

Based on our review of the analytical data and associated data quality assessment findings, we believe
that the data may be used for the intended purpose of characterizing the Site soils and assessing that
the concentrations of lead and arsenic in soils remaining in place in the areas of impacted soil removal
are below the designated land use standards.

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8 SUMMARY AND CONCLUSIONS
___________________________________________________________________________________

Kleinfelder conducted metals-impacted soil remediation of the Lark Monofill property from May 2021
through May 2023. Metals-impacted soils were excavated and hauled to either the Trans-Jordan Landfill
or the Site’s commercial parcel. Post-removal confirmation soil samples were collected within the
excavated areas to document the concentrations of lead and arsenic remaining in the Site soils.

Based on the laboratory analytical results, all lead and arsenic concentrations reported by the
laboratories in the post-removal soil samples were below the designated land use standards for the
sample location. One sample location in the northern portion of the compost facility contained lead at
concentrations below the Commercial Land Use Standard but above the Unrestricted Land Use
Standard. The current land use is commercial; however, if this area is eventually developed for
residential land use, the soils exceeding the unrestricted standards should be appropriately addressed.

These results demonstrate that soils impacted with lead and arsenic at concentrations above the
applicable land use standards identified during Site characterization activities have been removed from
the Lark Monofill in compliance with the project work plan. On behalf of SVWR and SOJO118, Kleinfelder
requests a no further action/remedial closure finding from the Agencies regarding remediation of
metals-impacted soils at the Site.

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9 LIMITATIONS
___________________________________________________________________________________

This work was performed in a manner consistent with that level of care and skill ordinarily exercised by
other members of Kleinfelder’s profession practicing in the same locality, under similar conditions and at
the date the services are provided. Our conclusions, opinions and recommendations are based on a
limited number of observations and data. It is possible that conditions could vary between or beyond
the data evaluated. Kleinfelder makes no other representation, guarantee or warranty, express or
implied, regarding the services, communication (oral or written), report, opinion, or services provided.

This corrective action was limited to remediating the metals-impacted soils identified on the Site as
detailed in the Lark Remedial Action Work Plan dated April 26, 2021 (Kleinfelder DCN:
SLC20R107223_R3) and Addendum #1 dated February 24, 2022. Kleinfelder will assume no responsibility
or liability whatsoever for any claim, loss of property value, damage, or injury which results from
pre-existing metals-impacted soils and/or hazardous materials being encountered or present on the
project site, or from the discovery of such materials outside those areas identified during or previous to
this corrective action.

Kleinfelder offers various levels of investigative and engineering services to suit the varying needs of
different clients. It should be recognized that definition and evaluation of geologic and environmental
conditions are a difficult and inexact science. Judgments leading to conclusions and recommendations
are generally made with incomplete knowledge of the subsurface conditions present due to the
limitations of data from field studies. Although risk can never be eliminated, more detailed and
extensive studies yield more information, which may help understand and manage the level of risk.
Since detailed study and analysis involves greater expense, our clients participate in determining levels
of service that provide adequate information for their purposes at acceptable levels of risk. More
extensive studies, including subsurface studies or field tests, should be performed to reduce
uncertainties.

This report may be used only by the client and only for the purposes stated within a reasonable time
from its issuance. land use, site conditions (both on- and off-site), or other factors may change over
time, and additional work may be required. Non-compliance with any of these requirements by the
client or anyone else, unless specifically agreed to in advance by Kleinfelder in writing will release
Kleinfelder from any liability resulting from the use of this report by any unauthorized party.

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10 REFERENCES
___________________________________________________________________________________

Kennecott-Rio Tinto, 2016; Daybreak Commerce Park/West Village Soil Characterization and
Post-Removal Sampling Report. October 2016. Kennecott GIS Database No. 1167.
Kleinfelder, 2020a; Phase I Environmental Site Assessment, South Valley Water Reclamation Property,
NE Corner of HWY 111 and 11800 South, South Jordan, Utah. (Document No. SLC19R99955R1),
dated August 21, 2019, revised June 2, 2020.
Kleinfelder, 2020b; Phase II Environmental Site Assessment, South Valley Water Reclamation Property,
NE Corner of Highway 111 and 11800 South, South Jordan, Utah, (Document No.
SLC20R105847R2), dated January 16, 2020, revised June 2, 2020.
Kleinfelder, 2021a; Bastian Ditch Sediment Waste Profiling Report, South Valley Water Reclamation
Property, NE Corner of Highway 111 and 11800 South, South Jordan, Utah, (Document No.
SLC21R123035), dated March 18, 2021.
Kleinfelder, 2021b; Lark Monofill Bastian Ditch Remedial Action Work Plan, South Valley Water
Reclamation Property, NE Corner of Highway 111 and 11800 South, South Jordan, Utah,
(Document No. SLC20R107223R3), dated April 26, 2021.
Kleinfelder, 2021c; Post-Removal Sampling Report Lark Monofill Substation Parcel, Vicinity 7020 West
and 11800 South, South Jordan, Utah. (Document No. SLC21R127561R1), dated July 1, 2021.
Kleinfelder, 2022; Addendum #1, Lark Monofill Bastian Ditch Remedial Action Work Plan, South Valley
Water Reclamation Property, NE Corner of Highway 111 and 11800 South, South Jordan, Utah,
(Document No. SLC22R136048R1), dated January 31, 2022, revised February 24, 2022.
Utah Division of Environmental Response and Remediation (DERR), 2006; Letter on adopting a
site-specific residential and commercial use standards for arsenic and lead for the soils located
in specific undeveloped areas within Daybreak. September 22, 2006.
DERR, 2015, Technical Memorandum, Compilation of Soil and Groundwater Action Levels, Kennecott
North and South Zones Administrative File. December 29, 2015.
DERR, 2021a; Approval Letter for Lark Monofill Remedial Action Work Plan, DERR Document
ERRC-057-21, dated April 30, 2021.

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DERR, 2021b; Email from KCrane of DERR – Clarification of Lark Monofill Commercial and Residential
Land Use Action Levels, dated August 5, 2021.
DERR, 2021c; No Further Action Letter for Lark Monofill Substation Parcel, dated September 9, 2021.
DERR, 2022; Approval Letter for Addendum #1 to Lark Monofill Remedial Action Work Plan, DERR
Document ERRC-032-22, dated March 3, 2022.
Utah Division of Waste Management and Radiation Control, DWMRC, 2020; Letter concurring Bastion
Ditch soil within Lark Monofill OU5 excluded from hazardous waste regulation due to Bevill
Exclusion, dated September 2, 2020.

Ta
b
l
e
s
Sample ID Date
Collected
Sample
Depth Sample Configuration Sample Type/ Purpose
Final Dispostion of
Stockpiled Soil
Arsenic
(mg/kg)
Lead
(mg/kg)
ES-1 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.4 326
ES-2 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.3 216
ES-3 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.6 288
ES-4 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.9 283
ES-5 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.9 278
ES-6 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 23.6 480
ES-7 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.7 283
ES-8 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.2 418
ES-9 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 24.4 374
ES-10 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 22.8 293
ES-11 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 20.8 298
ES-12 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.0 186
ES-13 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 32.7 648
ES-14 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 31.9 677
ES-15 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 22.1 383
ES-16 09/17/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 22.8 353
ES-17 10/07/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 22.1 365
ES-18 10/07/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 25.0 613
ES-19 10/07/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 27.0 629
ES-20 10/07/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 27.1 492
ES-21 10/07/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 24.4 429
ES-22 10/07/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 24.8 619
ES-23 10/07/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 22.1 558
ES-24 10/07/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 20.5 676
ES-25 10/07/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 24.7 953
ES-26 10/12/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 11.4 234
ES-27 10/12/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.9 553
ES-28 10/12/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.4 417
ES-29 10/12/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.0 517
ES-30 10/12/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.4 387
ES-31 10/12/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 7.3 225
ES-32 10/12/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.5 297
ES-33 10/12/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 21.2 378
ES-34 01/13/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization TransJordan Landfill 39.9 1180
ES-35 01/13/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.0 448
ES-36 10/12/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 10.3 253
ES-37 10/12/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 24.8 688
ES-38 NA NA Not Sampled Direct hauled stockpile to TransJordan TransJordan Landfill NA NA
ES-39 10/12/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.3 320
ES-40 10/14/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.5 331
ES-41 10/14/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.2 304
ES-42 10/14/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.7 330
ES-43 10/18/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.4 241
ES-44 10/18/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 10.6 175
ES-45 10/18/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.0 1030
ES-46 10/18/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.1 377
ES-47 10/18/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.7 396
ES-48 10/18/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.4 431
ES-49 10/18/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.1 404
ES-50 10/18/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 22.7 492
ES-51 10/18/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 25.5 497
ES-52 11/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.6 280
ES-53 11/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.9 257
ES-54 11/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.1 285
ES-55 11/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.9 224
ES-56 11/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.1 239
ES-57 11/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.6 177
ES-58 11/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.4 267
ES-59 11/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.1 230
ES-60 11/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.9 211
ES-61 11/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 41.4 517
ES-62 11/03/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.0 134
ES-63 11/03/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 11.2 111
ES-64 11/03/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.0 143
ES-65 11/03/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.0 106
ES-66 11/03/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.7 109
ES-67 11/03/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.8 109
ES-68 11/03/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.7 102
ES-69 11/03/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.1 97
ES-70 11/03/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.5 83
ES-71 11/09/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.0 88
ES-72 11/09/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.6 90
ES-73 11/09/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.3 161
ES-74 11/09/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.5 193
ES-75 11/09/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.6 164
ES-76 11/09/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.0 101
ES-77 11/22/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.5 159
ES-78 11/22/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.4 155
ES-79 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.2 168
Lark Monofill Remedial Action
Table 1
Bastian Ditch Stockpiles
Soil Profiling Analytical Results
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 1 of 4
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Date
Collected
Sample
Depth Sample Configuration Sample Type/ Purpose
Final Dispostion of
Stockpiled Soil
Arsenic
(mg/kg)
Lead
(mg/kg)
Lark Monofill Remedial Action
Table 1
Bastian Ditch Stockpiles
Soil Profiling Analytical Results
ES-80 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.2 157
ES-81 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.4 130
ES-82 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.8 136
ES-83 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.7 120
ES-84 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 25.2 178
ES-85 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 61.5 211
ES-86 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 33.9 154
ES-87 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 22.2 157
ES-88 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.8 97
ES-89 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.3 325
ES-90 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.7 127
ES-91 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.0 109
ES-92 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 10.7 112
ES-93 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.8 129
ES-94 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.0 162
ES-95 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.5 182
ES-96 11/29/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.1 781
ES-97 11/30/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.2 329
ES-98 11/30/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.2 427
ES-99 11/30/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.1 484
ES-100 11/30/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.3 282
ES-101 11/30/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.1 432
ES-102 11/30/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 28.7 604
ES-103 11/30/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 24.0 1180
ES-104 11/30/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.5 460
ES-105 11/30/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization TransJordan Landfill 134.0 3140
ES-106 11/30/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.6 334
ES-107 12/01/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 25.5 818
ES-108 12/01/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.2 506
ES-109 12/01/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.9 454
ES-110 12/01/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.7 404
ES-111 12/01/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 9.4 434
ES-112 12/01/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 7.5 1160
ES-113 12/01/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 9.8 243
ES-114 12/01/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 9.5 151
ES-115 12/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 10.3 333
ES-116 12/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization TransJordan Landfill 18.9 865
ES-117 12/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 32.0 872
ES-118 12/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 32.5 1400
ES-119 12/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.3 1060
ES-120 12/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.5 682
ES-121 12/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization TransJordan Landfill 14.9 677
ES-122 12/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.3 671
ES-123 12/02/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.2 386
ES-124 12/03/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization TransJordan Landfill 13.8 287
ES-125 12/03/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.4 205
ES-126 12/06/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.0 878
ES-127 12/06/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.5 420
ES-128 12/06/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.2 360
ES-129 12/06/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.2 536
ES-130 12/06/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.9 484
ES-131 12/06/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.9 540
ES-132 12/06/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization TransJordan Landfill 30.3 1020
ES-133 12/06/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.7 311
ES-134 12/06/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 20.6 574
ES-135 12/13/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.6 472
ES-136 12/13/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.8 485
ES-137 12/13/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.7 368
ES-138 12/13/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.6 408
ES-139 12/13/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.1 379
ES-140 12/13/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.5 399
ES-141 12/13/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.1 383
ES-142 12/13/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.3 645
ES-143 12/22/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.7 374
ES-144 12/22/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.2 467
ES-145 12/22/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.9 335
ES-146 12/22/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization TransJordan Landfill 45.7 1450
ES-147 12/22/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.6 325
ES-148 12/22/2021 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.4 350
ES-149 01/03/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 28.7 447
ES-150 01/03/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.2 296
ES-151 01/03/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 24.6 295
ES-152 01/03/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 36.0 333
ES-153 01/03/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.2 604
ES-154 01/03/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.7 425
ES-155 01/03/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 21.7 627
ES-156 01/03/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 20.0 551
ES-157 01/04/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 21.9 552
ES-158 01/04/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 23.9 479
ES-159 01/04/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 28.6 652
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 2 of 4
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Date
Collected
Sample
Depth Sample Configuration Sample Type/ Purpose
Final Dispostion of
Stockpiled Soil
Arsenic
(mg/kg)
Lead
(mg/kg)
Lark Monofill Remedial Action
Table 1
Bastian Ditch Stockpiles
Soil Profiling Analytical Results
ES-160 01/04/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 23.4 576
ES-161 01/04/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.1 355
ES-162 01/04/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.1 341
ES-163 01/04/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 22.1 550
ES-164 01/04/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 20.3 410
ES-165 01/05/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 27.6 593
ES-166 01/05/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 22.5 337
ES-167 01/05/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 25.1 515
ES-168 01/05/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 30.2 605
ES-169 01/05/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 23.4 376
ES-170 01/05/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 20.1 312
ES-171 01/05/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.6 190
ES-172 01/05/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.9 150
ES-173 01/05/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.5 225
ES-174 01/05/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.2 220
ES-175 01/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.5 302
ES-176 01/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.6 371
ES-177 01/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.6 313
ES-178 01/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 11.4 188
ES-179 01/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 22.5 474
ES-180 01/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.2 276
ES-181 01/07/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.4 373
ES-182 01/07/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.5 280
ES-183 01/07/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.3 431
ES-184 01/07/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.0 289
ES-185 01/07/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 30.5 328
ES-186 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.4 603
ES-187 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.4 506
ES-188 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.4 544
ES-189 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.7 547
ES-190 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 20.3 821
ES-191 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.8 597
ES-192 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.8 321
ES-193 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.1 326
ES-194 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 11.9 207
ES-195 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 11.6 188
ES-196 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.6 245
ES-197 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 10.5 174
ES-198 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.5 240
ES-199 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 11.4 196
ES-200 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 11.2 178
ES-201 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 11.8 171
ES-202 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 11.6 189
ES-203 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 11.8 184
ES-204 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 11.4 195
ES-205 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.0 236
ES-206 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.1 171
ES-207 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 21.5 402
ES-208 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.5 280
ES-209 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.8 262
ES-210 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.1 267
ES-211 01/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.5 255
ES-212 01/21/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 34.9 925
ES-213 01/21/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.0 352
ES-214 01/21/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.5 399
ES-215 01/21/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.5 331
ES-216 01/24/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 20.0 428
ES-217 01/24/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.0 185
ES-218 01/24/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.1 195
ES-219 01/24/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.8 293
ES-220 01/24/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.6 279
ES-221 01/24/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.6 558
ES-222 01/24/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 22.6 629
ES-223 01/25/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.5 184
ES-224 01/25/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 37.4 219
ES-225 01/25/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.4 218
ES-226 01/25/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.1 187
ES-227 01/25/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.8 205
ES-228 01/25/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.1 394
ES-229 01/25/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.2 304
ES-230 01/31/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 25.6 397
ES-231 01/31/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 26.1 480
ES-232 01/31/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 25.7 482
ES-233 01/31/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 20.4 430
ES-234 01/31/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 26.2 561
ES-235 02/01/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 27.4 490
ES-236 02/01/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 22.6 421
ES-237 02/01/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 33.2 687
ES-238 02/09/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.3 283
ES-239 02/09/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.2 224
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 3 of 4
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Date
Collected
Sample
Depth Sample Configuration Sample Type/ Purpose
Final Dispostion of
Stockpiled Soil
Arsenic
(mg/kg)
Lead
(mg/kg)
Lark Monofill Remedial Action
Table 1
Bastian Ditch Stockpiles
Soil Profiling Analytical Results
ES-240 02/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 22.1 244
ES-241 02/10/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 33.8 797
ES-242 01/24/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.2 271
ES-243 01/24/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.7 328
ES-244 01/24/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.1 335
ES-245 01/25/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.5 279
ES-246 01/25/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.7 336
ES-247 01/25/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.6 233
ES-248 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.9 213
ES-249 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.2 260
ES-250 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.3 170
ES-251 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.7 229
ES-252 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.7 162
ES-253 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.3 200
ES-254 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.2 209
ES-255 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.2 186
ES-256 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.5 140
ES-257 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.8 152
ES-258 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 24.1 125
ES-259 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.5 222
ES-260 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.3 121
ES-261 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 12.8 147
ES-262 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.9 145
ES-263 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.3 173
ES-264 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.4 177
ES-265 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 11.5 114
ES-266 02/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.1 182
ES-267 03/01/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.8 356
ES-268 03/01/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 30.2 627
ES-269 03/01/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 28.4 497
ES-270 03/01/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 26.3 406
ES-271 03/01/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 29.2 400
ES-272 03/21/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.6 355
ES-273 03/21/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.4 287
ES-274 03/21/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.4 273
ES-275 03/21/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.6 288
ES-276 03/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.8 593
ES-277 03/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.0 315
ES-278 03/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 22.9 502
ES-279 03/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.8 216
ES-280 03/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.4 188
ES-281 03/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.1 219
ES-282 03/28/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 21.1 460
ES-283 06/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 20.1 300
ES-284 06/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.2 231
ES-285 06/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.3 186
ES-286 06/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 26.5 370
ES-287 06/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 17.5 192
ES-288 06/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.5 167
ES-289 06/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.9 321
ES-290 06/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.5 260
ES-291 06/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.2 223
ES-292 06/06/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 14.4 230
ES-293 06/07/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 27.1 110
ES-294 06/07/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.2 249
ES-295 06/07/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.8 217
ES-296 06/07/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 18.5 269
ES-297 06/07/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 13.4 167
ES-298 06/07/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 26.5 362
ES-299 06/07/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.7 149
ES-300 06/07/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 23.0 406
ES-301 06/17/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 15.8 230
ES-302 06/17/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 66.8 365
ES-303 06/17/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.8 211
ES-304 06/17/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 21.9 260
ES-305 06/17/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 16.7 234
ES-306 06/17/2022 0-6 inches 10 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 19.9 206
H-5 11/22/2021 0-6 inches 4 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 34.8 785
H-11 11/22/2021 0-6 inches 4 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 29.2 742
H-12 11/22/2021 0-6 inches 4 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 31.9 467
H-13 11/22/2021 0-6 inches 4 - point composite sample Impacted Stockpile Characterization Lark Commercial Parcel 34.2 827
450 2000
Notes and Abbreviations:
mg/kg = milligrams per kilogram
Highlighted sample = result exceeds the Commercial Land Use Standard
Soil samples analyzed for total concentrations of lead and aresenic by USEPA Method SW6010B
82 Percent (247) of the stockpiles placed in the commercial parcel had soil concentrations below the Unrestricted Land Use Standards of 50 mg/kg Arsenic and 500 mg/kg Lead.
Commercial Land Use Standards:
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 4 of 4
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Date
Collected Sample Configuration Sample Purpose
Arsenic
(mg/kg)
Lead
(mg/kg)
SP-1 06/15/2021 10 - point composite sample Overburden Stockpile Characterization 14.8 135
SP-2 06/15/2021 10 - point composite sample Overburden Stockpile Characterization 14.3 125
SP-3 06/15/2021 10 - point composite sample Overburden Stockpile Characterization 14.8 85
SP-4 06/15/2021 10 - point composite sample Overburden Stockpile Characterization 12.9 64
SP-5 06/15/2021 10 - point composite sample Overburden Stockpile Characterization 13.6 102
SP-6 06/15/2021 10 - point composite sample Overburden Stockpile Characterization 14.7 135
SP-7 06/15/2021 10 - point composite sample Overburden Stockpile Characterization 22.4 202
SP-8 06/15/2021 10 - point composite sample Overburden Stockpile Characterization 18.0 155
SP-9 06/15/2021 10 - point composite sample Overburden Stockpile Characterization 14.1 79
SP-10 08/23/2021 10 - point composite sample Overburden Stockpile Characterization 14.0 140
SP-11 08/23/2021 10 - point composite sample Overburden Stockpile Characterization 12.7 148
SP-12 08/23/2021 10 - point composite sample Overburden Stockpile Characterization 9.9 67
SP-13 08/23/2021 10 - point composite sample Overburden Stockpile Characterization 8.8 69
SP-14 08/23/2021 10 - point composite sample Overburden Stockpile Characterization 12.0 96
SP-15 08/23/2021 10 - point composite sample Overburden Stockpile Characterization 9.0 53
SP-16 08/23/2021 10 - point composite sample Overburden Stockpile Characterization 22.3 133
SP-17 08/23/2021 10 - point composite sample Overburden Stockpile Characterization 11.2 87
SP-18 08/23/2021 10 - point composite sample Overburden Stockpile Characterization 11.3 95
SP-19 08/23/2021 10 - point composite sample Overburden Stockpile Characterization 10.3 102
SP-20 08/23/2021 10 - point composite sample Overburden Stockpile Characterization 11.3 110
SP-21 08/23/2021 10 - point composite sample Overburden Stockpile Characterization 9.0 68
SP-22 08/24/2021 10 - point composite sample Overburden Stockpile Characterization 11.7 79
SP-23 08/24/2021 10 - point composite sample Overburden Stockpile Characterization 10.0 58
SP-24 08/24/2021 10 - point composite sample Overburden Stockpile Characterization 7.9 27
SP-25 08/24/2021 10 - point composite sample Overburden Stockpile Characterization 8.2 43
SP-26 08/24/2021 10 - point composite sample Overburden Stockpile Characterization 11.6 102
SP-27 09/07/2021 10 - point composite sample Overburden Stockpile Characterization 16.7 221
SP-28 09/07/2021 10 - point composite sample Overburden Stockpile Characterization 17.0 221
SP-29 09/07/2021 10 - point composite sample Overburden Stockpile Characterization 17.2 268
SP-30 09/07/2021 10 - point composite sample Overburden Stockpile Characterization 16.9 188
SP-31 10/22/2021 10 - point composite sample Overburden Stockpile Characterization 20.6 268
SP-32 10/22/2021 10 - point composite sample Overburden Stockpile Characterization 17.6 235
SP-33 10/22/2021 10 - point composite sample Overburden Stockpile Characterization 23.2 348
SP-34 10/22/2021 10 - point composite sample Overburden Stockpile Characterization 21.1 260
Table 2
"Clean" Overburden Stockpiles
Soil Profiling Analytical Results
Lark Monofill Remedial Action
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 1 of 3
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Date
Collected Sample Configuration Sample Purpose
Arsenic
(mg/kg)
Lead
(mg/kg)
Table 2
"Clean" Overburden Stockpiles
Soil Profiling Analytical Results
Lark Monofill Remedial Action
SP-35 10/22/2021 10 - point composite sample Overburden Stockpile Characterization 20.0 236
SP-36 10/22/2021 10 - point composite sample Overburden Stockpile Characterization 19.0 244
SP-37 10/22/2021 10 - point composite sample Overburden Stockpile Characterization 15.2 189
SP-38 10/22/2021 10 - point composite sample Overburden Stockpile Characterization 19.7 238
SP-39 01/11/2022 10 - point composite sample Overburden Stockpile Characterization 21.3 362
SP-40 01/11/2022 10 - point composite sample Overburden Stockpile Characterization 24.4 417
SP-41 01/11/2022 10 - point composite sample Overburden Stockpile Characterization 16.3 254
SP-42 01/11/2022 10 - point composite sample Overburden Stockpile Characterization 19.4 294
SP-43 01/11/2022 10 - point composite sample Overburden Stockpile Characterization 14.1 150
SP-44 01/11/2022 10 - point composite sample Overburden Stockpile Characterization 16.5 236
SP-45 01/11/2022 10 - point composite sample Overburden Stockpile Characterization 12.4 159
SP-46 01/11/2022 10 - point composite sample Overburden Stockpile Characterization 17.8 280
SP-47 01/11/2022 10 - point composite sample Overburden Stockpile Characterization 15.0 199
SP-48 01/12/2022 10 - point composite sample Overburden Stockpile Characterization 26.5 328
SP-49 01/12/2022 10 - point composite sample Overburden Stockpile Characterization 19.0 175
SP-50 01/12/2022 10 - point composite sample Overburden Stockpile Characterization 18.9 243
SP-51 01/12/2022 10 - point composite sample Overburden Stockpile Characterization 16.6 285
SP-52 01/12/2022 10 - point composite sample Overburden Stockpile Characterization 16.5 291
SP-53 01/12/2022 10 - point composite sample Overburden Stockpile Characterization 17.3 228
SP-54 01/12/2022 10 - point composite sample Overburden Stockpile Characterization 18.2 365
SP-55 01/12/2022 10 - point composite sample Overburden Stockpile Characterization 16.2 244
SP-56 01/12/2022 10 - point composite sample Overburden Stockpile Characterization 9.7 132
SP-57 01/20/2022 10 - point composite sample Overburden Stockpile Characterization 17.2 306
SP-58 01/20/2022 10 - point composite sample Overburden Stockpile Characterization 13.6 250
SP-59 01/20/2022 10 - point composite sample Overburden Stockpile Characterization 11.2 173
SP-60 01/20/2022 10 - point composite sample Overburden Stockpile Characterization 10.7 76
SP-67 02/09/2022 10 - point composite sample Overburden Stockpile Characterization 13.8 151
SP-68 02/09/2022 10 - point composite sample Overburden Stockpile Characterization 11.1 149
SP-69 03/01/2022 10 - point composite sample Overburden Stockpile Characterization 18.4 221
SP-70 03/01/2022 10 - point composite sample Overburden Stockpile Characterization 11.7 170
SP-71 03/01/2022 10 - point composite sample Overburden Stockpile Characterization 14.1 177
SP-72 03/01/2022 10 - point composite sample Overburden Stockpile Characterization 15.5 178
SP-73 03/01/2022 10 - point composite sample Overburden Stockpile Characterization 12.6 145
SP-74 03/01/2022 10 - point composite sample Overburden Stockpile Characterization 12.0 141
SP-75 03/01/2022 10 - point composite sample Overburden Stockpile Characterization 12.1 128
SP-76 04/04/2022 10 - point composite sample Overburden Stockpile Characterization 12.6 114
SP-77 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 10.2 274
SP-78 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 12.8 118
SP-79 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 13.0 183
SP-80 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 12.1 143
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 2 of 3
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Date
Collected Sample Configuration Sample Purpose
Arsenic
(mg/kg)
Lead
(mg/kg)
Table 2
"Clean" Overburden Stockpiles
Soil Profiling Analytical Results
Lark Monofill Remedial Action
SP-81 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 13.4 113
SP-82 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 13.1 140
SP-83 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 12.3 128
SP-84 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 9.1 116
SP-85 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 13.7 172
SP-86 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 12.4 113
SP-87 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 11.0 122
SP-88 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 18.8 158
SP-89 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 41.8 340
SP-90 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 14.0 144
SP-91 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 14.1 175
SP-92 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 13.4 156
SP-93 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 16.0 261
SP-94 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 10.7 121
SP-95 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 13.5 147
SP-96 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 12.1 138
SP-97 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 12.5 121
SP-98 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 12.2 136
SP-99 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 14.0 148
SP-100 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 13.5 129
SP-101 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 12.7 160
SP-102 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 12.5 145
SP-103 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 13.8 148
SP-104 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 14.8 165
SP-105 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 11.8 110
SP-106 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 13.4 143
SP-107 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 15.3 131
SP-108 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 14.3 135
SP-109 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 14.8 198
SP-110 06/01/2022 10 - point composite sample Overburden Stockpile Characterization 10.7 107
SP-111 06/07/2022 10 - point composite sample Overburden Stockpile Characterization 14.8 118
SP-112 06/07/2022 10 - point composite sample Overburden Stockpile Characterization 16.0 119
SP-113 06/15/2022 10 - point composite sample Overburden Stockpile Characterization 17.6 207
SP-114 06/15/2022 10 - point composite sample Overburden Stockpile Characterization 30.9 187
SP-115 06/15/2022 10 - point composite sample Overburden Stockpile Characterization 15.3 154
SP-116 06/15/2022 10 - point composite sample Overburden Stockpile Characterization 14.7 132
50 500
Notes and Abbreviations:
mg/kg = milligrams per kilogram
Highlighted sample = result exceeds the Unrestricted Land Use Standard
Soil samples analyzed for total concentrations of lead and aresenic by USEPA Method SW6010B
Unrestricted Land Use Standards:
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 3 of 3
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Date
Collected
Sample
Depth Sample Type/ Purpose Sample Location Sample Configuration Lnad Use Action Level
Arsenic
(mg/kg)
Lead
(mg/kg)
Bastian Ditch Excavation Post-Removal Ground Surface Samples (1)
DG-1* 09/22/2021 0-6 inches Post removal ground surface Bastian Ditch Main Channel
Ground Surface
12 - point composite sample with subsamples
spaced 50 feet apart Commercial 12.1 124
DG-2* 09/22/2021 0-6 inches Post removal ground surface " "
8 - point composite sample with subsamples
spaced 50 feet apart Commercial 16.3 177
DG-4 01/07/2022 0-6 inches Post removal ground surface " "
8 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 18.9 196
DG-5 01/11/2022 0-6 inches Post removal ground surface " "
10 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 11 104
DG-6 01/11/2022 0-6 inches Post removal ground surface " "
12 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 10.1 193
DG-7 01/11/2022 0-6 inches Post removal ground surface " "
11 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 8.7 146
DG-8 01/12/2022 0-6 inches Post removal ground surface " "
10 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 13.1 254
DG-9 01/12/2022 0-6 inches Post removal ground surface " "11 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 16.4 390
DG-9X 04/06/2022 0-6 inches
Additional post removal ground surface sampled after
overexcavation of DS-9W sidewall " " 5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 13 233
DG-10 01/12/2022 0-6 inches Post removal ground surface " "
10 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 15.5 311
DG-10X 04/06/2022 0-6 inches
Additional post removal ground surface sampled after
overexcavation of DS-10W sidewall " " 3 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 18.9 288
DG-11 01/12/2022 0-6 inches Post removal ground surface " "
4 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 27.7 285
DG-12 01/12/2022 0-6 inches Post removal ground surface " "
13 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 7.3 89.6
DG-13 01/12/2022 0-6 inches Post removal ground surface " "
10 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 10.2 196
DG-14 01/12/2022 0-6 inches Post removal ground surface " "
7 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 10.8 253
DG-15 01/12/2022 0-6 inches Post removal ground surface " "
6 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 11.5 85.9
DG-16 01/12/2022 0-6 inches Post removal ground surface " "
7 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 16.2 325
DG-17 01/13/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 14.4 349
DG-18 01/13/2022 0-6 inches Post removal ground surface " "
9 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 11.1 89.8
DG-19 01/13/2022 0-6 inches Post removal ground surface " "
10 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 17.2 103
DG-20 01/13/2022 0-6 inches Post removal ground surface " "
4 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 16.4 131
DG-21* 03/03/2022 0-6 inches Post removal ground surface " "
4 - point composite sample with subsamples
spaced 40 feet apart Commercial 10.8 94
DG-22* 03/03/2022 0-6 inches Post removal ground surface " "
4 - point composite sample with subsamples
spaced 40 feet apart Commercial 10.7 147
DG-23 03/15/2022 0-6 inches Post removal ground surface " "
7 - point composite sample with subsamples
spaced 40 feet apart Unrestricted Land Use 11.9 121
DG-24 03/25/2022 0-6 inches Post removal ground surface " "
6 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 10.1 137
DG-26 04/29/2022 0-6 inches Post removal ground surface " "
15 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 13.6 211
DG-27 04/29/2022 0-6 inches Post removal ground surface " "
16 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 12.8 138
DG-28 04/09/2022 0-6 inches Post removal ground surface " "
15 - point composite sample with subsamples
spaced 25 feet apart Unrestricted Land Use 15.5 255
DG-29 04/09/2022 0-6 inches Post removal ground surface " "
11 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 13.6 179
DG-30 04/29/2022 0-6 inches Post removal ground surface " "
13 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 10.5 105
DG-31 04/29/2022 0-6 inches Post removal ground surface " "
10 - point composite sample with subsamples
spaced 25 feet apart Unrestricted Land Use 12.1 147
DG-32 06/20/2022 0-6 inches Post removal ground surface " "
15 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 17.2 200
DG-33 06/20/2022 0-6 inches Post removal ground surface " "
15 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 16.1 202
DG-34 06/20/2022 0-6 inches Post removal ground surface " "
15 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 12.8 176
DG-35 06/20/2022 0-6 inches Post removal ground surface " "
15 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 21.8 233
DG-36 06/20/2022 0-6 inches Post removal ground surface " "
6 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 11.9 85.2
DG-37 06/21/2022 0-6 inches Post removal ground surface " "
8 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 13.9 156
G10F 01/06/2022 0-6 inches Post removal ground surface " "
4 - point composite sample with subsamples
spaced 10 feet apart Unrestricted Land Use 23 428
Table 3
Bastian Ditch Channel
West Lark Monofill, Post-Removal Sample Analytical Results
Lark Monofill Remedial Action
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 1 of 3
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Date
Collected
Sample
Depth Sample Type/ Purpose Sample Location Sample Configuration Lnad Use Action Level
Arsenic
(mg/kg)
Lead
(mg/kg)
Table 3
Bastian Ditch Channel
West Lark Monofill, Post-Removal Sample Analytical Results
Lark Monofill Remedial Action
Footprint Beneath Impacted Soil Stockpiles - Post-Removal Ground Surface Samples (1)
ESG-1 03/15/2022 0-6 inches Post removal ground surface Beneath Removed Stockpile
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 11.4 108
ESG-2 03/15/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 16.2 129
ESG-3 05/03/2022 0-6 inches Post removal ground surface " "
6 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 14.9 172
ESG-4 05/03/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 18.5 202
ESG-5 05/19/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 15.8 212
ESG-6 05/24/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 14.7 168
ESG-7 05/24/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 13.5 155
ESG-8 06/21/2022 0-6 inches Post removal ground surface " "
6 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 13.6 171
ESG-9 06/22/2022 0-6 inches Post removal ground surface " "
13 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 17.2 160
ESG-10 06/22/2022 0-6 inches Post removal ground surface " "
15 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 10.7 138
ESG-11 06/21/2022 0-6 inches Post removal ground surface " "
15 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 20.8 223
ESG-12 06/21/2022 0-6 inches Post removal ground surface " "
9 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 12.7 166
ESG-13 06/28/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 19.8 258
ESG-14 06/28/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 10.5 101
ESG-15 07/05/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 10.5 72.3
ESG-16 07/05/2022 0-6 inches Post removal ground surface " "
10 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 10.4 81.6
ESG-17 07/12/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 15.3 376
ESG-18X 09/20/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 15.1 204
ESG-19 07/21/2022 0-6 inches Post removal ground surface " "
10 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 15.2 169
ESG-20 08/09/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 16.9 332
ESG-21 08/09/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 15.5 186
ESG-22 08/09/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 16.1 237
ESG-23 10/28/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 11.4 99
H-5X 03/29/2022 0-6 inches Post removal ground surface " "
4 - point composite sample with subsamples
spaced 10 feet apart Unrestricted Land Use 14.6 204
H-11X 03/29/2022 0-6 inches Post removal ground surface " "
5 - point composite sample with subsamples
spaced 10 feet apart Unrestricted Land Use 17.3 272
H-13X 03/29/2022 0-6 inches Post removal ground surface " "
6 - point composite sample with subsamples
spaced 10 feet apart Unrestricted Land Use 20.5 306
Bastian Ditch Excavation Post-Removal Sidewall Samples (2)
DS-1* 9/22/2022 3-4 feet Post removal sidewall Bastian Ditch Main Channel
Excavation Sidewalls
5 - point composite sample with subsamples
spaced 50 feet apart Commercial 19.7 154
DS-2* 9/22/2022 3-4 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 49 feet apart Commercial 26.7 440
DS-3* 9/22/2022 3-4 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Commercial 28 602
DS-4E 01/07/2022 2-3 feet Post removal sidewall " "
4 - point composite sample with subsamples
spaced 25 feet apart Unrestricted Land Use 18.3 183
DS-4W 01/07/2022 2-3 feet Post removal sidewall " "
4 - point composite sample with subsamples
spaced 25 feet apart Unrestricted Land Use 14.6 101
DS-5E 01/11/2022 1.5-2 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 11.3 157
DS-5W 01/11/2022 1-1.5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 7.7 122
DS-6E 01/11/2022 1-1.5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 14.6 135
DS-6W 01/11/2022 1-1.5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 9.7 122
DS-7E 01/11/2022 1-1.5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 9.3 97.9
DS-7W 01/11/2022 1-1.5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 10.3 218
DS-8E 01/12/2022 1-1.5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 12.3 277
DS-8W 01/12/2022 1-1.5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 11.6 157
DS-9E 01/12/2022 1-1.5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 15.3 257
DS-9WX 04/06/2022 2-3 feet
Post removal sidewall sample collected after
overexcavation of DS-9 west sidewall " " 5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 19.6 345
DS-10E 01/12/2022 1-1.5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 17.2 261
DS-10WX 04/06/2022 2-3 feet Post removal sidewall " " 4 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 21.3 288
DS-11E 01/12/2022 1-1.5 feet Post removal sidewall " "
4 - point composite sample with subsamples
spaced 200 feet apart Unrestricted Land Use 14.1 177
DS-11W 01/12/2022 1-1.5 feet Post removal sidewall " "
4 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 11.7 151
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 2 of 3
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Date
Collected
Sample
Depth Sample Type/ Purpose Sample Location Sample Configuration Lnad Use Action Level
Arsenic
(mg/kg)
Lead
(mg/kg)
Table 3
Bastian Ditch Channel
West Lark Monofill, Post-Removal Sample Analytical Results
Lark Monofill Remedial Action
DS-12E 01/12/2022 1.5-2.5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 9.2 127
DS-12W 01/12/2022 1.5-2.5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 10.5 139
DS-13E 01/12/2022 1.5-2.5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 13.1 285
DS-13W 01/12/2022 1.5-2.5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 17.5 218
DS-14E 01/12/2022 1-2 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 13.9 139
DS-14WX 04/06/2022 2-3 feet Post removal sidewall " " 5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 12.8 153
DS-15E 01/12/2022 1.5-2.5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 16.9 381
DS-15W 01/12/2022 1.5-2.5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 13.6 139
DS-16W 01/12/2022 1-2 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 11 367
DS-17E 01/13/2022 3-5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 11.6 169
DS-17W 01/13/2022 3-5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 12.7 186
DS-18E 01/13/2022 4-6 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 12 93.8
DS-18W 01/13/2022 4-6 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 13 87.2
DS-19E 01/13/2022 3-5 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 13.7 66.1
DS-19W 01/13/2022 4-6 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 11.8 67
DS-20E 01/13/2022 4.5-6.6 feet Post removal sidewall " "
4 - point composite sample with subsamples
spaced 5 feet apart Unrestricted Land Use 7.7 44.4
DS-20W 01/13/2022 3-5 feet Post removal sidewall " "
4 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 8.1 52.2
DS-21* 03/03/2022 3-5 feet Post removal sidewall " "
4 - point composite sample with subsamples
spaced 40 feet apart Commercial 8.45 67.6
DS-22* 03/03/2022 7-9 feet Post removal sidewall " "
4 - point composite sample with subsamples
spaced 40 feet apart Commercial 26.5 337
DS-23 03/15/2022 3-4 feet Post removal sidewall " "
6 - point composite sample with subsamples
spaced 40 feet apart Unrestricted Land Use 9.11 68.4
DS-24 03/25/2022 2-3 feet Post removal sidewall " "
4 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 12.6 111
DS-25* 05/04/2022 3-4 feet Post removal sidewall " "
3 - point composite sample with subsamples
spaced 50 feet apart Commercial 15.3 315
DS-26* 05/04/2022 3-4 feet Post removal sidewall " "
3 - point composite sample with subsamples
spaced 50 feet apart Commercial 18.8 157
DS-27 05/04/2022 1-4 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 25.7 448
DS-28 05/28/2022 1.5-2 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 15.9 197
DS-29 05/05/2022 1-3 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 12 101
DS-30 05/23/2022 1-3 feet Post removal sidewall " "
5 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 13.2 144
DS-31 05/23/2022 1-3 feet Post removal sidewall " "
4 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 15.3 246
DS-33 06/20/2022 1-3 feet Post removal sidewall " "
4 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 12.2 150
DS-34 06/20/2022 1-3 feet Post removal sidewall " "
2 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 14.7 208
DS-35 06/20/2022 1-3 feet Post removal sidewall " "
2 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 9.29 29.6
DS-36 06/20/2022 1-3 feet Post removal sidewall " "
4 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 36.8 175
DS-37 06/20/2022 1-3 feet Post removal sidewall " "
3 - point composite sample with subsamples
spaced 50 feet apart Unrestricted Land Use 19.4 275
G10S 01/06/2022 3-4 feet Post removal sidewall " "
4 - point composite sample with subsamples
spaced 30 feet apart Unrestricted Land Use 25.8 403
R-1 03/03/2022 3-3.5 feet
Represents soil remaining in place on the southern
property boundary." " Single Point Grab Sample Road Right-of-Way 209 2740
R-2 03/03/2022 5-5.5 feet
Represents soil remaining in place on the southern
property boundary." " Single Point Grab Sample
Road Right-of-Way 32.7 742
R-3 03/15/2022 3-4 feet
Represents soil remaining in place on the southern
property boundary." " Single Point Grab Sample Road Right-of-Way 29.9 1200
R-4 03/25/2022 1.5-1.7 feet
Represents soil remaining in place on the northeast
property boundary." " Single Point Grab Sample
Daybreak Residential 18.6 1510
50 500
450 2000
Notes and Abbreviations:
mg/kg = milligrams per kilogram
Highlighted samples indicate metals concentration exceeds the applicable Land Use Standard
Soil samples analyzed for total concentrations of lead and aresenic by USEPA Method SW6010B
(1) Represents post-removal ground surface remaining after impacted soil removal.
(2) Post-removal excavation sidewall samples collected at the depth interval with the highest metals concentrations prior to soil removal. Represents soil remaining in place.
* Indicates sample location falls within the Lark commercial parcel. Commercial Land Use Standards apply.
Impacted Soil Remaining at Property Boundary
Unrestricted Land Use Standards:
Commercial Land Use Standards:
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 3 of 3
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Date
Collected
Sample
Depth Sample Type/ Purpose Sample Location Sample Configuration Action Level (1)Arsenic
(mg/kg)
Lead
(mg/kg)
Post-Removal Ground Surface Samples (2)
FG-1 05/21/2021 0-6 inches Post removal ground surface East Fence Line - Substation
Parcel
11 - point composite sample with subsamples spaced 50
feet apart Daybreak Residential 12.0 105
FG-2 05/21/2021 0-6 inches Post removal ground surface East Fence Line - Substation
Parcel
10 - point composite sample with subsamples spaced 10
feet apart Daybreak Residential 11.7 95.2
FG-3 07/13/2021 0-6 inches Post removal ground surface East Fence Line
11 - point composite sample with subsamples spaced 50
feet apart Daybreak Residential 16.2 162
FG-4 07/15/2021 0-6 inches Post removal ground surface East Fence Line
6 - point composite sample with subsamples spaced 50
feet apart Daybreak Residential 15.6 181
FG-5 07/22/2021 0-6 inches Post removal ground surface East Fence Line
7 - point composite sample with subsamples spaced 50
feet apart Daybreak Residential 19.6 273
FG-6 07/22/2021 0-6 inches Post removal ground surface East Fence Line
9 - point composite sample with subsamples spaced 40
feet apart Daybreak Residential 16.8 278
FG-7 08/05/2021 0-6 inches Post removal ground surface East Fence Line
7 - point composite sample with subsamples spaced 40
feet apart Daybreak Residential 16.9 84.2
FG-8 08/05/2021 0-6 inches Post removal ground surface East Fence Line
7 - point composite sample with subsamples spaced 40
feet apart Daybreak Residential 15.4 161
FG-9 08/06/2021 0-6 inches Post removal ground surface East Fence Line
7 - point composite sample with subsamples spaced 30
feet apart Daybreak Residential 16.0 159
FG-10 08/06/2021 0-6 inches Post removal ground surface Northeast Fence Line
9 - point composite sample with subsamples spaced 50
feet apart Daybreak Residential 19.1 249
FG-11 08/06/2021 0-6 inches Post removal ground surface Northeast Fence Line
6 - point composite sample with subsamples spaced 40
feet apart Daybreak Residential 11.4 66.4
FG-12 08/06/2021 0-6 inches Post removal ground surface Northeast Fence Line
6 - point composite sample with subsamples spaced 40
feet apart Daybreak Residential 13.5 54.6
FG-13 08/27/2021 0-6 inches Post removal ground surface Northeast Fence Line
6 - point composite sample with subsamples spaced 33
feet apart Daybreak Residential 17.7 121
FG-14 08/27/2021 0-6 inches Post removal ground surface Northeast Fence Line
6 - point composite sample with subsamples spaced 33
feet apart Daybreak Residential 16.1 179
FG-15 08/27/2021 0-6 inches Post removal ground surface Northeast Fence Line
10 - point composite sample with subsamples spaced 33
feet apart Daybreak Residential 10.6 97.6
FG-16 08/27/2021 0-6 inches Post removal ground surface East Fence Line
16 - point composite sample with subsamples spaced 20
feet apart Daybreak Residential 17.7 231
FG-17 10/12/2021 0-6 inches Post removal ground surface East Fence Line
7 - point composite sample with subsamples spaced 62.5
feet apart Daybreak Residential 14.9 271
FG-18 10/12/2021 0-6 inches Post removal ground surface East Fence Line
9 - point composite sample with subsamples spaced 49
feet apart Daybreak Residential 8.26 67.9
C3F 09/22/2021 0-6 inches Post removal ground surface C3 Excavation
East Fence Line
4 - point composite sample with subsamples spaced 8 feet
apart Daybreak Residential 24.1 507
C7FG 09/03/2021 0-6 inches Post removal ground surface C7 Excavation
East Fence Line
4 - point composite sample with subsamples spaced 15
feet apart Daybreak Residential 21.3 365
KT8F-1 08/11/2021 0-6 inches Post removal ground surface KT-8 Excavation
East Fence Line
12 - point composite sample with subsamples spaced 32.5
feet apart Daybreak Residential 15.9 349
G-26G 01/26/2022 0-6 inches Post removal ground surface G-26 Excavation near
northeast fenceline
9 - point composite sample with subsamples spaced 30
feet apart Daybreak Residential 40 516
Post-Removal Excavation Sidewall Samples (3)
FS-1 05/21/2021 2-2.5 feet Post removal sidewall East Fence Line - Substation
Parcel
5 - point composite sample with subsamples spaced 40
feet apart Daybreak Residential 15.9 174
FS-2 05/21/2021 2-2.5 feet Post removal sidewall East Fence Line - Substation
Parcel
5 - point composite sample with subsamples spaced 40
feet apart Daybreak Residential 11.6 84.7
FS-3 07/13/2021 2-3 feet Post removal sidewall East Fence Line
8 - point composite sample with subsamples spaced 50
feet apart Daybreak Residential 15.3 101
FS-4 07/15/2021 2-3 feet Post removal sidewall East Fence Line
8 - point composite sample with subsamples spaced 25
feet apart Daybreak Residential 17.1 133
FS-5 07/22/2021 3-3.5 feet Post removal sidewall East Fence Line
5 - point composite sample with subsamples spaced 50
feet apart Daybreak Residential 11.1 71.0
FS-6 07/22/2021 3-3.5 feet Post removal sidewall East Fence Line
6 - point composite sample with subsamples spaced 40
feet apart Daybreak Residential 13.0 104
FS-7 08/05/2021 2-4 feet Post removal sidewall East Fence Line
6 - point composite sample with subsamples spaced 40
feet apart Daybreak Residential 13.6 109
FS-8 08/05/2021 2-5 feet Post removal sidewall East Fence Line
6 - point composite sample with subsamples spaced 40
feet apart Daybreak Residential 14.9 148
FS-10 08/06/2021 2-3 feet Post removal sidewall Northeast Fence Line
5 - point composite sample with subsamples spaced 50
feet apart Daybreak Residential 14.8 176
FS-11 08/06/2021 1.5-2 feet Post removal sidewall Northeast Fence Line
6 - point composite sample with subsamples spaced 40
feet apart Daybreak Residential 13.2 58.7
FS-12 08/06/2021 1-2 feet Post removal sidewall Northeast Fence Line
6 - point composite sample with subsamples spaced 40
feet apart Daybreak Residential 17.1 82
FS-13 08/27/2021 2.5-3 feet Post removal sidewall Northeast Fence Line
6 - point composite sample with subsamples spaced 33
feet apart Daybreak Residential 15.6 104
FS-14 08/27/2021 2.5-3 feet Post removal sidewall Northeast Fence Line
6 - point composite sample with subsamples spaced 33
feet apart Daybreak Residential 14.8 153
FS-15 08/27/2021 2.5-3 feet Post removal sidewall Northeast Fence Line
9 - point composite sample with subsamples spaced 33
feet apart Daybreak Residential 19.6 176
Table 4
Bastian Ditch Drainages
East Lark Monofill, Post-Removal Sample Analytical Results
Lark Monofill Remedial Action
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 1 of 2
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Date
Collected
Sample
Depth Sample Type/ Purpose Sample Location Sample Configuration Action Level (1)Arsenic
(mg/kg)
Lead
(mg/kg)
Table 4
Bastian Ditch Drainages
East Lark Monofill, Post-Removal Sample Analytical Results
Lark Monofill Remedial Action
FS-16 08/27/2021 3-3.5 feet Post removal sidewall East Fence Line
6 - point composite sample with subsamples spaced 20
feet apart Daybreak Residential 12.9 162
FS-17 10/12/2021 2-2.5 feet Post removal sidewall East Fence Line
5 - point composite sample with subsamples spaced 62.5
feet apart Daybreak Residential 10.9 124
FS-18 10/12/2021 2-2.5 feet Post removal sidewall East Fence Line
5 - point composite sample with subsamples spaced 49
feet apart Daybreak Residential 16.4 239
KT-8-1x 09/07/2021 17-17.5 feet
Post removal sidewall sample collected
after overexcavation of KT-8-1 area
KT-8 Excavation
East Fence Line
Singel grab sample.
Unimpacted soil above sample depth.
All KT-8 excavation sidewall samples were not composited
in order to provide the most conservative confirmation
data.
Daybreak Residential 20.8 685
KT-8-2 08/10/2021 10.5-11.5 feet Post removal sidewall KT-8 Excavation
East Fence Line Single grab sample. Unimpacted soil above sample depth. Daybreak Residential
21.6 554
KT-8-3 08/10/2021 11-12 feet Post removal sidewall KT-8 Excavation
East Fence Line Single grab sample. Unimpacted soil above sample depth. Daybreak Residential 23.1 633
KT-8-4 08/10/2021 10-11.5 feet Post removal sidewall KT-8 Excavation
East Fence Line Single grab sample. Unimpacted soil above sample depth. Daybreak Residential 23.3 662
KT-8-5 08/10/2021 7-8 feet Post removal sidewall KT-8 Excavation
East Fence Line Single grab sample. Unimpacted soil above sample depth. Daybreak Residential
23.9 564
KT-8-6 08/10/2021 9-9.5 feet Post removal sidewall KT-8 Excavation
East Fence Line Single grab sample. Unimpacted soil above sample depth. Daybreak Residential
22.5 512
KT-8-7 08/10/2021 7-8 feet Post removal sidewall KT-8 Excavation
East Fence Line Single grab sample. Unimpacted soil above sample depth. Daybreak Residential 10.7 221
KT-8-8 08/11/2021 10.5-11 feet Post removal sidewall KT-8 Excavation
East Fence Line Single grab sample. Unimpacted soil above sample depth. Daybreak Residential
11.8 120
KT-8-9 08/11/2021 11-12 feet Post removal sidewall KT-8 Excavation
East Fence Line Single grab sample. Unimpacted soil above sample depth. Daybreak Residential 6.0 156
KT-8-10 08/11/2021 11.5-12.5 feet Post removal sidewall KT-8 Excavation
East Fence Line Single grab sample. Unimpacted soil above sample depth. Daybreak Residential
11.8 133
KT-8-11 08/11/2021 13-13.5 feet Post removal sidewall KT-8 Excavation
East Fence Line Single grab sample. Unimpacted soil above sample depth. Daybreak Residential 4.9 58
KT-8-12 08/11/2021 15-16 feet Post removal sidewall KT-8 Excavation
East Fence Line Single grab sample. Unimpacted soil above sample depth. Daybreak Residential
19.1 424
KT-8-13 08/11/2021 14.5-15.5 feet Post removal sidewall KT-8 Excavation
East Fence Line Single grab sample. Unimpacted soil above sample depth. Daybreak Residential 7.0 110
KT-8-14 08/11/2021 12-13 feet Post removal sidewall KT-8 Excavation
East Fence Line Single grab sample. Unimpacted soil above sample depth. Daybreak Residential
20.1 231
KT-8-15 09/07/2021 11.5-12 feet Post removal sidewall KT-8 Excavation
East Fence Line Single grab sample. Unimpacted soil above sample depth. Daybreak Residential 20.6 509
C3S 09/22/2021 8-9 feet Post removal sidewall C3 Excavation
East Fence Line
4 - point composite sample with subsamples spaced 20
feet apart Daybreak Residential 24.6 533
C7FS-1 09/02/2021 6.5-7 feet Post removal sidewall C7 Excavation
East Fence Line
Single Grab Sample. Sidewall samples from C7 excavation
were not composited in order to provide the most
conservative data.
Daybreak Residential 29.0 484
C7FS-2 09/03/2021 6.5-7 feet Post removal sidewall C7 Excavation
East Fence Line Single grab sample Daybreak Residential
28.9 432
C7FS-3 09/03/2021 6.5-7 feet Post removal sidewall C7 Excavation
East Fence Line Single grab sample Daybreak Residential
24.6 261
C7FS-4 09/03/2021 6.5-7 feet Post removal sidewall C7 Excavation
East Fence Line Single grab sample Daybreak Residential 19.8 331
C7FS-5 09/03/2021 6.5-7 feet Post removal sidewall C7 Excavation
East Fence Line Single grab sample Daybreak Residential 17.4 189
C7FS-6 09/03/2021 6.5-7 feet Post removal sidewall C7 Excavation
East Fence Line Single grab sample Daybreak Residential
25.1 530
C7FS-7 09/03/2021 6.5-7 feet Post removal sidewall C7 Excavation
East Fence Line Single grab sample Daybreak Residential 21.4 336
C7FS-8 09/03/2021 6.5-7 feet Post removal sidewall C7 Excavation
East Fence Line Single grab sample Daybreak Residential
18.8 184
C7FS-9 09/03/2021 6.5-7 feet Post removal sidewall C7 Excavation
East Fence Line Single grab sample Daybreak Residential 14.7 176
C7FS-10 09/03/2021 6.5-7 feet Post removal sidewall C7 Excavation
East Fence Line Single grab sample Daybreak Residential
27.3 499
C7FS-11 09/03/2021 6.5-7 feet Post removal sidewall C7 Excavation
East Fence Line Single grab sample Daybreak Residential 32.1 551
C7FS-12 09/03/2021 6.5-7 feet Post removal sidewall C7 Excavation
East Fence Line Single grab sample Daybreak Residential
24.1 382
G-26S South 02/28/2022 13-14 feet Post removal sidewall G-26 Excavation near
northeast fenceline
5 - point composite sample with subsamples spaced 30
feet apart Daybreak Residential 32.4 626
G-26S North 01/28/2022 11-14 feet Post removal sidewall G-26 Excavation near
northeast fenceline
5 - point composite sample with subsamples spaced 30
feet apart Daybreak Residential 27.3 415
100 700
283 2,207
Notes and Abbreviations:
mg/kg = milligrams per kilogram
Soil samples analyzed for total concentrations of lead and aresenic by USEPA Method SW6020B
Highlighted sample results indicate metals concentration remaining in place exceeds the applicable Land Use Standard
(1) While some post-removal confirmation samples were collected in the Recreational Land Use Park Parcel, all post-removal samples met the Daybreak Residential Land Use Standards
(2) Represents post-removal ground surface remaining after impacted soil excavation.
(3) Post-removal excavation sidewall samples collected at the depth interval with the highest metals concentrations prior to impacted soil removal.
Daybreak Residential Land Use Standards:
OU5 Bastian Ditch Recreational Standards:
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 2 of 2
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Dated
Collected
Sample
Depth Sample Configuration Sample Type/ Purpose Sample Location
Final Dispostion of
Sampled Soil
Proposed Land Use /
Action Level
Arsenic
(mg/kg)
Lead
(mg/kg)
C1 06/28/2021 8-10 feet Single grab sample Characterization sample
Within KT-8 Excavation
East Fence Line Hauled to Commercial Parcel Daybreak ResidenƟal 28.2 675
C2 06/28/2021 9-10 feet Single grab sample Characterization sample
Within KT-8 Excavation
East Fence Line Hauled to Commercial Parcel Daybreak ResidenƟal 22.2 381
C3 06/28/2021 9-11 feet Single grab sample Characterization sample
Within C3 Excavation
East Fence Line Hauled to Commercial Parcel Daybreak ResidenƟal 28.7 699
C3A 8-9 06/28/2021 8-9 feet Single grab sample Characterization sample
Within C3 Excavation
East Fence Line Hauled to Commercial Parcel Daybreak ResidenƟal 14.0 276
C4 06/28/2021 8-10 feet Single grab sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 26.0 538
C5 06/28/2021 8-10 feet Single grab sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 23.5 328
C6 06/28/2021 8-10 feet Single grab sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 24.2 441
C7-1 06/28/2021 6-7 feet Single grab sample Characterization sample
C7 Excavation
East Fence Line Hauled to Commercial Parcel Daybreak ResidenƟal 44.5 913
C7-2 06/28/2021 8-10 feet Single grab sample Characterization sample
C7 Excavation
East Fence Line Hauled to Commercial Parcel Daybreak ResidenƟal 44.0 911
C7A 8-9 08/11/2021 8-9 feet Single grab sample Characterization sample
C7 Excavation
East Fence Line
C7 area excavated.
Hauled to Commercial Parcel Daybreak ResidenƟal 14.0 250
C7B 6-7 08/11/2021 6-7 feet Single grab sample Characterization sample
C7 Excavation
East Fence Line
C7 area excavated.
Hauled to Commercial Parcel Daybreak ResidenƟal 16.9 318
C8 06/28/2021 7-10 feet Single grab sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 24.6 411
C9 07/07/2021 6-8 feet Single grab sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 26.6 520
C10 07/07/2021 8-12 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 11.9 123
C11 07/07/2021 6-12 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 19.9 266
CTP-1 07/08/2021 12-14 feet Single grab sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 11.7 136
CTP-2 07/08/2021 12-14 feet Single grab sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 9.4 71
CTP-3 07/09/2021 13-15 feet Single grab sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 25.2 91
CTP-5 07/09/2021 14-16 feet Single grab sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 5.8 125
CTP-6 07/9/2021 0-14 feet XRF at 2 ft intervals Characterization sample East Fence Line Remains in place Daybreak ResidenƟal <50 <500
CTP-7 07/9/2021 0-16 feet XRF at 2 ft intervals Characterization sample East Fence Line Remains in place Daybreak ResidenƟal <50 <330
CTP-8 07/07/2021 8-14 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 13.0 164
CTP-9 07/07/2021 6-15 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 17.1 312
CTP-10 07/07/2021 4-13 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 17.9 352
CTP-11 07/07/2021 6-13 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 20.1 492
CTP-12 07/08/2021 12-15 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 17.5 329
D-1 07/07/2021 10-14 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 21.0 392
Table 5
Additional Site Characterization - Soil Analytical Results
Lark Monofill Remedial Action
Site Characterization Samples Collected within Proposed Residential Land Use Area
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 1 of 6
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Dated
Collected
Sample
Depth Sample Configuration Sample Type/ Purpose Sample Location
Final Dispostion of
Sampled Soil
Proposed Land Use /
Action Level
Arsenic
(mg/kg)
Lead
(mg/kg)
Table 5
Additional Site Characterization - Soil Analytical Results
Lark Monofill Remedial Action
D-2 07/07/2021 8-16 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 17.0 326
D-3 07/07/2021 6-12 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 19.2 238
E-1 07/08/2021 6-12 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 19.5 390
E-2 07/08/2021 8-12 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 21.4 439
E-3 07/08/2021 8-12 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 22.1 369
E-4 07/08/2021 8-10 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 24.5 562
E-5 07/08/2021 6-10 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 20.3 286
E-6 07/08/2021 8-13 feet vertical composite sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 20.7 226
F-3 07/14/2021 8-10 feet Single grab sample Characterization sample
Within KT-8 Excavation
East Fence Line Hauled to Commercial Parcel Daybreak ResidenƟal 27.0 681
F-4 07/14/2021 10-12 feet Single grab sample Characterization sample
Within KT-8 Excavation
East Fence Line Hauled to Commercial Parcel Daybreak ResidenƟal 17.8 401
F-6 07/14/2021 10-12 feet Single grab sample Characterization sample East Fence Line Remains in place OU5 Recreational 11.2 45
F-16 08/26/2021 12.5-14 feet Single grab sample Characterization sample
Within KT-8 Excavation
East Fence Line Hauled to Commercial Parcel Daybreak ResidenƟal 19.5 361
G-13 08/17/2021 7.5-8 feet Single grab sample Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal 18.2 165
G-14 08/17/2021 10-11 feet Single grab sample Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal 12.1 136
G-15 08/17/2021 9-10.5 feet Single grab sample Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal 13.8 152
G-16 08/26/2021 8.5-10 feet Single grab sample Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal 18.5 149
G-17 08/26/2021 8.5-10 feet Single grab sample Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal 21.3 159
G-18 08/26/2021 8-9.5 feet Single grab sample Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal 39.6 182
G-53 3-4 02/07/2022 3-4 feet Single grab sample Characterization sample East Lark Proposed Residential Area Remains in place OU5 Recreational 22.3 525
G-53 9-10 02/07/2022 9-10 feet Single grab sample Characterization sample East Lark Proposed Residential Area Remains in place OU5 Recreational 16.6 296
G-54 4-5 02/07/2022 4-5 feet Single grab sample Characterization sample East Lark Proposed Residential Area Remains in place OU5 Recreational 10.4 110
G-54 9-10 02/07/2022 9-10 feet Single grab sample Characterization sample East Lark Proposed Residential Area Remains in place OU5 Recreational 10.7 126
STP-9 08/17/2021 6-7 feet Single grab sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 17.0 159
STP-10 08/17/2021 8.5-10 feet Single grab sample Characterization sample East Fence Line Remains in place Daybreak ResidenƟal 21.5 191
WETP-1a 09/08/2021 5-6 feet Single grab sample Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal 19.3 479
WETP-1a 09/08/2021 8-9 feet Single grab sample Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal 22.8 639
WETP-2a 09/08/2021 4-5 feet Single grab sample Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal 25.7 478
WETP-2a 09/08/2021 10-11 feet Single grab sample Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal 25.6 552
WETP-3 07/6/2021 0-13 feet XRF at 2 ft intervals Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal <50 <500
WETP-4 07/6/2021 0-15 feet XRF at 2 ft intervals Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal <50 <500
WETP-5 07/6/2021 0-12 feet XRF at 2 ft intervals Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal <50 <300
WETP-6 07/07/2021 6-12 feet vertical composite sample Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal 17.5 201
WETP-7 07/7/2021 0-12 feet XRF at 2 ft intervals Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal <50 <200
WETP-8 07/7/2021 0-12 feet XRF at 2 ft intervals Characterization sample East Lark Proposed Residential Area Remains in place Daybreak ResidenƟal <50 <200
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 2 of 6
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Dated
Collected
Sample
Depth Sample Configuration Sample Type/ Purpose Sample Location
Final Dispostion of
Sampled Soil
Proposed Land Use /
Action Level
Arsenic
(mg/kg)
Lead
(mg/kg)
Table 5
Additional Site Characterization - Soil Analytical Results
Lark Monofill Remedial Action
G1 07/29/2021 0-12 feet XRF at 2 ft intervals Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational <50 <300
G2 07/29/2021 0-12 feet XRF at 2 ft intervals Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational <50 <200
G3 08/4/2021 0-12 feet XRF at 2 ft intervals Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational <50 <200
G4 08/4/2021 0-12 feet XRF at 2 ft intervals Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational <50 <200
G5 4-5.5 08/04/2021 4-5.5 feet Single grab sample Characterization sample Proposed Recreational Parcel Hauled to Commercial Parcel OU5 Recreational 27.7 400
G5 5.5-7 08/04/2021 5.5-7 feet Single grab sample Characterization sample Proposed Recreational Parcel Hauled to Commercial Parcel OU5 Recreational 15.0 189
G5 7-8.5 08/04/2021 7-8.5 feet Single grab sample Characterization sample Proposed Recreational Parcel Hauled to Commercial Parcel OU5 Recreational 18.8 220
G5 8.5-10 08/04/2021 8.5-10 feet Single grab sample Characterization sample Proposed Recreational Parcel Hauled to Commercial Parcel OU5 Recreational 29.0 589
G5 10-11.5 08/04/2021 10-11.5 feet Single grab sample Characterization sample Proposed Recreational Parcel Hauled to Commercial Parcel OU5 Recreational 28.9 512
G5 11.5-13 08/04/2021 11.5-13 feet Single grab sample Characterization sample Proposed Recreational Parcel Hauled to Commercial Parcel OU5 Recreational 24.2 337
G5 13-14.5 08/04/2021 13-14.5 feet Single grab sample Characterization sample Proposed Recreational Parcel Hauled to Commercial Parcel OU5 Recreational 27.3 437
G5 14.5-16 08/04/2021 14.5-16 feet Single grab sample Characterization sample Proposed Recreational Parcel Hauled to Commercial Parcel OU5 Recreational 30.0 515
G5 16-18.5 08/04/2021 16-18.5 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place at >16 ft depth OU5 Recreational 37.9 791
G6 6-8 08/04/2021 6-8 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 27.8 519
G6 8-10 08/04/2021 8-10 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 32.1 477
G6 10-11 08/04/2021 10-11 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 32.0 513
G6 11-12 08/04/2021 11-12 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 31.0 526
G6 12-14 08/04/2021 12-14 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 26.3 492
G6 14-15 08/04/2021 14-15 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 31.0 504
G7A 0-2 08/16/2021 0-2 feet Single grab sample Characterization sample HWY 111 ROW Remains in place OU5 Recreational 21.1 250
G7 10-12 08/09/2021 10-12 feet Single grab sample Characterization sample HWY 111 ROW Remains in place OU5 Recreational 25.5 436
G7A 11-12 08/16/2021 11-12 feet Single grab sample Characterization sample HWY 111 ROW Remains in place OU5 Recreational 22.2 277
G-8 08/9/2021 0-14 feet XRF at 2 ft intervals Characterization sample HWY 111 ROW Remains in place OU5 Recreational <50 <100
G9 2.5-3 08/09/2021 2.5-3 feet Single grab sample Characterization sample HWY 111 ROW Remains in place OU5 Recreational 29.2 424
G10 2-4 08/09/2021 2-4 feet Single grab sample Characterization sample HWY 111 ROW
G-10 area excavated.
Hauled to Commercial Parcel OU5 Recreational 29.6 615
G-11 08/16/2021 11.5-12 feet Single grab sample Characterization sample HWY 111 ROW Remains in place OU5 Recreational 12.4 99
G-12 08/16/2021 10.5-11 feet Single grab sample Characterization sample HWY 111 ROW Remains in place OU5 Recreational 13.6 255
G-19 09/08/2021 9-10 feet Single grab sample Characterization sample Proposed Recreational Parcel
Removed with G-26 excavation.
Hauled to Commercial Parcel OU5 Recreational 34.7 719
G-19A 09/08/2021 17-18 feet Single grab sample Characterization sample Proposed Recreational Parcel
Removed with G-26 excavation.
Hauled to Commercial Parcel OU5 Recreational 29.1 548
G-20 09/08/2021 4-5 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 16.8 215
G-21 18-19 11/04/2021 18-19 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place at >18 ft depth OU5 Recreational 39.3 1090
G-22 18-19 11/04/2021 18-19 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 14.1 174
G-22 19.5-20 11/19/2021 19.5-20 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 25.7 235
G-23 13-16 11/04/2021 13-16 feet Vertical composite sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 25.7 309
G-23C 10-11.5 11/19/2021 10-11.5 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 26.6 634
Site Characterization Samples Collected within Proposed Recreational Land Use Area or Highway 111 Right-of Way
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 3 of 6
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Dated
Collected
Sample
Depth Sample Configuration Sample Type/ Purpose Sample Location
Final Dispostion of
Sampled Soil
Proposed Land Use /
Action Level
Arsenic
(mg/kg)
Lead
(mg/kg)
Table 5
Additional Site Characterization - Soil Analytical Results
Lark Monofill Remedial Action
G-23c 16-17 11/19/2021 16-17 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place at >16 ft depth OU5 Recreational 33.4 874
G-24 16-17 11/04/2021 16-17 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 19.5 329
G-25 9-10 11/04/2021 9-10 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place at >9 ft depth OU5 Recreational 28.8 830
G-25 17-18 11/04/2021 17-18 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 21.9 335
G-26 10-11 11/19/2021 10-11 feet Single grab sample Characterization sample
G-26 Excavation
Proposed Recreational Parcel
Removed with G-26 excavation.
Hauled to Commercial Parcel OU5 Recreational 40.6 703
G-26 14-15 11/04/2021 14-15 feet Single grab sample Characterization sample
G-26 Excavation
Proposed Recreational Parcel
Removed with G-26 excavation.
Hauled to Commercial Parcel OU5 Recreational 17.5 162
G-26 17-18 11/19/2021 17-18 feet Single grab sample Characterization sample
G-26 Excavation
Proposed Recreational Parcel
G-26 area excavated to 15 ft.
Soil represented by this sample remains
in place.
OU5 Recreational 39.9 899
G-26 19-20 11/04/2021 19-20 feet Single grab sample Characterization sample
G-26 Excavation
Proposed Recreational Parcel G-26 area excavated to 15 ft OU5 Recreational 20.0 258
G-27 11-13 11/04/2021 11-13 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 33.7 699
G-27 17-17.5 11/19/2021 17-17.5 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 29.1 562
G-27 18.5-19 11/19/2021 18.5-19 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 34.8 562
G-27 19-20 11/04/2021 19-20 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 22.7 386
G-28 14-15 11/22/2021 14-15 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 26.9 552
G-28 19-20 11/22/2021 19-20 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 24.0 367
G-29 11-13 11/22/2021 11-13 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place at >11 ft depth OU5 Recreational 39.7 793
G-29 19-20 11/22/2021 19-20 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 22.8 335
G-30 6-8 11/23/2021 6-8 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 22.9 342
G-30 12-13 11/23/2021 12-13 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place at > 12 ft depth OU5 Recreational 38.2 761
G-31 8-9 11/23/2021 8-9 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place at > 8 ft depth OU5 Recreational 34.7 767
G-31 11-12 11/23/2021 11-12 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 23.9 536
G-32 12-13 01/11/2022 12-13 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 48.2 567
G-33 9-10 01/11/2022 9-10 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 15.8 133
G-34 10-11 01/13/2022 10-11 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 22.7 301
G-35 01/13/2022 0-15 feet XRF at 2 ft intervals Characterization sample Proposed Recreational Parcel Hauled to Commercial Parcel OU5 Recreational <50 <700
G-36 14-15 01/13/2022 14-15 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 29.1 487
G-37 12-13 01/03/2022 12-13 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 17.2 192
G-38 12.5-13 01/13/2022 12.5-13 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place at > 12 ft depth OU5 Recreational 36.5 708
G-39 13-14 01/28/2022 13-14 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 19.6 359
G-40 10-11 01/28/2022 10-11 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 12.0 127
G-41 10-11 01/28/2022 10-11 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 6.8 15
G-42 14-15 01/28/2022 14-15 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 17.2 144
G-43 10-11 01/28/2022 9-10 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 18.5 229
G-44 10-11 02/01/2022 10-11 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 29.4 630
G-44 16-17 01/28/2022 16-17 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 20.7 474
G-45 14-15 01/28/2022 14-15 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 16.8 204
G-46 11-12 02/02/2022 11-12 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 16.6 215
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 4 of 6
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Dated
Collected
Sample
Depth Sample Configuration Sample Type/ Purpose Sample Location
Final Dispostion of
Sampled Soil
Proposed Land Use /
Action Level
Arsenic
(mg/kg)
Lead
(mg/kg)
Table 5
Additional Site Characterization - Soil Analytical Results
Lark Monofill Remedial Action
G-47 10-12 02/02/2022 10-12 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 19.6 251
G-48 7-8 02/03/2022 7-8 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 32.3 540
G-48 10-11 02/03/2022 10-11 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 27.8 473
G-48 13-14 02/03/2022 13-14 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 23.5 577
G-48 16-17 02/03/2022 16-17 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 25.4 695
G-49 6-7 02/04/2022 6-7 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 29.2 817
G-49 14-15 02/04/2022 14-15 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 18.0 252
G-50 5-6 02/04/2022 5-6 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 23.4 229
G-50 14-15 02/04/2022 14-15 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 11.3 85
G-51 5-6 02/04/2022 5-6 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 25.6 611
G-51 14-15 02/04/2022 14-15 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 13.3 179
G-52 6-7 02/07/2022 6-7 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 20.7 499
G-52 13-14 02/07/2022 13-14 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 14.7 221
G-55 5-6 03/22/2022 5-6 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 13.4 151
G-55 10-11 03/22/2022 10-11 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 22.1 221
G-56 6-7 03/22/2022 6-7 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 16.5 160
G-56 10-11 03/22/2022 10-11 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 19.9 205
G-57 5-6 03/22/2022 5-6 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 15.1 199
G-57 10-11 03/22/2022 10-11 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 15.0 175
G-58 5-6 03/22/2022 5-6 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 16.9 233
G-58 10-11 03/22/2022 10-11 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 29.3 243
G-58 16-17 03/22/2022 16-17 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 19.3 183
G-59 5-6 03/22/2022 5-6 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 15.1 146
G-59 11-12 03/23/2022 11-12 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 21.2 386
G-59 18-19 03/23/2022 18-19 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 15.3 380
G-60 6-7 03/23/2022 6-7 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 15.8 155
G-60 11-12 03/23/2022 11-12 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 16.4 577
G-60 18-19 03/23/2022 18-19 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 8.2 171
G-61 5-6 03/23/2022 5-6 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 6.3 93
G-61 9-10 03/23/2022 9-10 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 16.9 268
G-61 18-19 03/23/2022 18-19 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 10.4 178
G-62 5-6 03/23/2022 5-6 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 10.6 140
G-62 11-12 03/23/2022 11-12 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 11.4 310
G-63 6-7 03/24/2022 6-7 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 11.2 359
G-63 9-10 03/24/2022 9-10 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 9.4 238
G-63 16-17 03/24/2022 16-17 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 10.0 297
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 5 of 6
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Dated
Collected
Sample
Depth Sample Configuration Sample Type/ Purpose Sample Location
Final Dispostion of
Sampled Soil
Proposed Land Use /
Action Level
Arsenic
(mg/kg)
Lead
(mg/kg)
Table 5
Additional Site Characterization - Soil Analytical Results
Lark Monofill Remedial Action
G-64 5-6 03/25/2022 5-6 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 23.1 362
G-64 11-12 03/25/2022 11-12 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 30.8 685
G-65 8-9 03/25/2022 8-9 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 23.0 304
G-65 12-13 03/25/2022 12-13 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 34.0 715
G-65 16-17 03/25/2022 16-17 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 15.7 266
G-66 9-10 03/25/2022 9-10 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 23.3 262
G-66 16-17 03/25/2022 16-17 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 26.6 558
G-66 21-22 03/25/2022 21-22 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 17.1 298
G-67 9-10 03/25/2022 9-10 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 28.4 547
G-67 16-17 03/25/2022 16-17 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 29.6 516
G-67 21-22 03/25/2022 21-22 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 15.4 208
I-1 12-13 02/21/2022 12-13 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 23.4 662
I-1 18-19 02/21/2022 18-19 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 194.0 264
I-2 12-13 02/21/2022 12-13 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 27.8 641
I-2 18-19 02/21/2022 18-19 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 22.2 291
I-3 12-13 02/21/2022 12-13 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 23.3 247
I-4 10-11 02/21/2022 10-11 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 23.2 487
I-5 12-13 02/21/2022 12-13 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 16.0 181
I-7 4-5 03/07/2022 4-5 feet Single grab sample Characterization sample HWY 111 ROW Hauled to Commercial Parcel Daybreak ResidenƟal 13.4 176
I-7 10-11 03/07/2022 10-11 feet Single grab sample Characterization sample HWY 111 ROW Hauled to Commercial Parcel Daybreak ResidenƟal 14.6 126
I-8 4-5 03/07/2022 4-5 feet Single grab sample Characterization sample HWY 111 ROW Hauled to Commercial Parcel Daybreak ResidenƟal 22.8 423
I-8 10-11 03/07/2022 10-11 feet Single grab sample Characterization sample HWY 111 ROW Hauled to Commercial Parcel Daybreak ResidenƟal 14.5 158
I-9 4-5 03/07/2022 4-5 feet Single grab sample Characterization sample HWY 111 ROW Hauled to Commercial Parcel Daybreak ResidenƟal 15.7 124
I-9 10-11 03/07/2022 10-11 feet Single grab sample Characterization sample HWY 111 ROW Hauled to Commercial Parcel Daybreak ResidenƟal 14.2 184
RTP-2 07/13/2021 10-12 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 11.6 16
RTP-3 07/13/2021 10-12 feet Single grab sample Characterization sample Proposed Recreational Parcel Remains in place OU5 Recreational 12.6 102
KP-1W 10-11 04/06/2022 10-11 feet Single grab sample Characterization sample
North of compost facility on E-W oriented Bastian
Ditch Drainage
Left in place due to depth of imacts at
>10 feet HWY 111 alignment 24.3 545
KP-1W 11-12 04/06/2022 11-12 feet Single grab sample Characterization sample
North of compost facility on E-W oriented Bastian
Ditch Drainage
Left in place due to depth of imacts at
>10 feet HWY 111 alignment 36.5 827
KP-1W 12-13 04/06/2022 12-13 feet Single grab sample Characterization sample
North of compost facility on E-W oriented Bastian
Ditch Drainage
Left in place due to depth of imacts at
>10 feet HWY 111 alignment 41.5 1630
KP-2C 02/04/2021 2-3 feet Single grab sample Characterization sample
West of compost facility building along Bastian Ditch
channel
Left in place due to multiple utilities in
vicinity
OU5 Commercial- possible future
residential 29.5 799
100 700
450 2,000
283 2,207
Notes and Abbreviations:
mg/kg = milligrams per kilogram
Soil samples were analyzed for total concentrations of lead and aresenic by USEPA Method SW6010B
Highlighted sample results indicate metals concentration remaining in place exceeds the applicable Land Use Standard
Site Characterization Samples Collected within the Trans-Jordan Composting Facility
Commercial Land Use Standards:
OU5 Bastian Ditch Recreational Standards:
Daybreak Residential Land Use Standards:
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 6 of 6
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Duplicate ID
Original
Arsenic
(mg/kg)
DUP
Arsenic
(mg/kg)
Arsenic
RPD (%)
Original Lead
(mg/kg)
DUP
Lead
(mgkg)
Lead
RPD (%)
E-1 DUP-1 07092021 19.5 19.8 1.53 390 430 9.76
E-2 DUP-2 07092021 21.4 22.8 6.33 439 497 12.39
CTP-10 DUP-3 07092021 17.9 18.5 3.30 352 406 14.25
FG-5 DUP-1 08062021 19.6 21.5 9.25 273 367 29.38
FG-12 DUP-2 08062021 13.5 11.1 19.51 54.6 41.3 27.74
G5 10-11.5 DUP-3 08062021 28.9 27.4 5.33 512 536 4.58
G6 12-14 DUP-4 08062021 26.3 23.8 9.98 492 384 24.66
KT-8-5 DUP-1 08102021 23.9 25.5 6.48 564 590 4.51
G-15 DUP-2 08172021 13.8 18.3 28.04 152 136 11.11
Trench - C7-2 DUP-3 08112021 44.0 24.6 56.56 911 509 56.62
SP-10 DUP-1 09102021 14.0 15.4 9.52 140 140 0.00
SP-15 DUP-2 09102021 9.04 11.3 22.22 52.9 68.1 25.12
C7FS-2 DUP-3 09102021 28.9 25.6 12.11 432 420 2.82
C7FS-9 DUP-4 09102021 14.7 19.3 27.06 176 239 30.36
KT-8-1X DUP-5 09102021 20.8 20.5 1.45 685 607 12.07
C3F DUP-1 10082021 24.1 24.4 1.24 507 499 1.59
ES-17 DUP-1 10182021 22.1 19.8 10.98 365 262 32.85
FG-17 DUP-2 10182021 14.9 8.89 50.53 271 143 61.84
DS-1 DUP-3 10182021 19.7 18.1 8.47 154 140 9.52
ES-39 DUP-4 10182021 18.3 20.5 11.34 320 364 12.87
ES-21 DUP-5 10182021 24.4 26.3 7.50 429 480 11.22
FS-18 DUP-6 10182021 16.4 21.7 27.82 239 353 38.51
SP-35 DUP-1 10252021 20.0 18.9 5.66 236 216 8.85
ES-47 DUP-2 11172021 16.7 19.3 14.44 396 428 7.77
ES-52 DUP-3 11172021 16.6 17.7 6.41 280 278 0.72
ES-57 DUP-4 11172021 15.6 14.0 10.81 177 174 1.71
ES-62 DUP-5 11172021 16.0 15.1 5.79 134 131 2.26
ES-78 DUP-1 11302021 15.4 13.3 14.63 155 142 8.75
ES-87 DUP-2 11302021 22.2 21.7 2.28 157 151 3.90
G-26 10-11 DUP-3 11302021 40.6 40.7 0.25 703 841 17.88
G-29 11-13 DUP-4 11302021 39.7 41.8 5.15 793 860 8.11
ES-99 DUP-1 12162021 16.1 24.6 41.77 484 659 30.62
ES-108 DUP-2 12162021 15.2 16.6 8.81 506 457 10.18
ES-117 DUP-3 12162021 32.0 18.9 51.47 872 769 12.55
ES-126 DUP-4 12162021 18.0 17.2 4.55 878 477 59.19
ES-135 DUP-5 12162021 17.6 14.0 22.78 472 364 25.84
ES-143 DUP-1 01062022 15.7 14.0 11.45 374 329 12.80
Table 6
Lark Monofill Remedial Action
Quality Assurance Samples
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 1 of 2
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Sample ID Duplicate ID
Original
Arsenic
(mg/kg)
DUP
Arsenic
(mg/kg)
Arsenic
RPD (%)
Original Lead
(mg/kg)
DUP
Lead
(mgkg)
Lead
RPD (%)
Table 6
Lark Monofill Remedial Action
Quality Assurance Samples
ES-153 DUP-2 01062022 17.2 21.1 20.37 604 575 4.92
ES-161 DUP-3 01062022 19.1 19.6 2.58 355 390 9.40
ES-174 DUP-4 01062022 12.2 5.73 72.17 220 121 58.06
DS-4W DUP-1 01102022 14.6 14.1 3.48 101 103 1.96
DG-6 DUP-1 01172022 10.1 10.1 0.00 193 180 6.97
DG-8 DUP-2 01172022 13.1 14.8 12.19 254 266 4.62
DS-12E DUP-3 01172022 9.2 9.8 6.32 127 141 10.45
DS-16W DUP-4 01172022 11 13.6 21.14 367 342 7.05
DS-17W DUP-5 01172022 12.7 14.3 11.85 186 193 3.69
ES-196 DUP-6 01172022 12.6 14.3 12.64 245 243 0.82
ES-187 DUP-7 01172022 16.4 15.9 3.10 506 467 8.02
ES-35 DUP-8 01172022 19 20.4 7.11 448 518 14.49
ES-208 DUP-9 01172022 19.5 19.4 0.51 280 324 14.57
SP-51 DUP-10 01172022 16.6 17.1 2.97 285 278 2.49
SP-48 DUP-11 01172022 26.5 21 23.16 328 305 7.27
ES-227 DUP-1 01252022 13.8 17.1 21.36 205 304 38.90
ES-223 DUP-2 01252022 12.5 11.5 8.33 184 140 27.16
ES-246 DUP-3 01252022 13.7 17.1 22.08 336 373 10.44
G-26S NORTH DUP-1 01272022 27.3 28.8 5.35 415 413 0.48
G-54 9-10 DUP-1 02092022 10.7 9.72 9.60 126 110 13.56
G-49 6-7 DUP-2 02092022 29.2 25.9 11.98 817 594 31.61
G-48 7-8 DUP-3 02092022 32.3 31.6 2.19 540 582 7.49
G-45 17-18 DUP-4 02092022 13.7 10.8 23.67 215 144 39.55
ES-236 DUP-5 02092022 22.6 18.0 22.66 421 282 39.54
ES-235 DUP-6 02092022 27.4 23.5 15.32 490 383 24.51
KP-1W 12-13 DUP-1-041122H-5X 41.5 16.3 87.20 1630 664 84.22
DS-27 DUP-1 052522 25.7 23.3 9.80 448 392 13.33
ESG-3 DUP-2 052522 14.9 17.1 13.75 172 168 2.35
ES-289 DUP-1 060822 16.9 17.4 2.92 321 278 14.36
ES-299 DUP-2 060822 16.7 17.0 1.78 149 186 22.09
SP-83 DUP-3 060822 12.3 16.2 27.37 128 138 7.52
SP-89 DUP-4 060822 41.8 15.4 92.31 340 144 80.99
SP-104 DUP-5 060822 14.8 10.8 31.25 165 135 20.00
ES-283 DUP-6 060822 20.1 20.2 0.50 300 220 30.77
ESG-11 DUP-1 062722 20.8 16.1 25.47 223 244 8.99
ES-302 DUP-2 062722 66.8 18.5 113.25 365 254 35.86
SP-114 DUP-3 062722 30.9 12.5 84.79 187 167 11.30
ESG-14 DUP-1 081022 10.5 9.26 12.55 101 92.2 9.11
Notes:
DUP = Duplicate Sample
RPD = Relative Percent Difference
BOLD samples indicate the RPD exceeds the data quality objective of 35%. Of 154 duplicate analyses, 134 (13%) met the RPD of 35%.
Analyte concentrations in milligrams per kilogram (mg/kg)
20201466.001A/SLC23R156681
© 2023 Kleinfelder
Page 2 of 2
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
July 31, 2023
www.kleinfelder.com
Fi
g
u
r
e
s
SITE VICINITY MAP
LARK MONOFILLNORTHEAST CORNER OFHIGHWAY 111 AND 11800 SOUTHSOUTH JORD AN, UTAH
PROJECT NO.:
FILE NAME:
FIGURE
1DRAWN:
CHECKED BY:
The information included on this graphic representation has been compiled from a variety ofsources and is subject to change without notice. Kleinfelder makes no representations orwarranties, express or implied, as to accuracy, completeness, timeliness, or rights to the use ofsuch information. This document is not intended for use as a land survey product nor is itdesigned or intended as a construction design document. The use or misuse of the informationcontained on this graphic representation is at the sole risk of the party using or misusing the information.
DRAWN BY:
0 1,000 2,000
Feet
Explanation
Approximate Site Boundary
Basemap: USG S The National MapInset: National Geographic W orld M ap m ap service via ESRI
Locations are Approximate£
ExcavAll_Fig1.mxd
SiteLocation
SALT LAKE CITY, UT
\\azrgisstorp03\GIS_Projects\Client\SOJO118\20201466.04-LarkMonofill\ExcavAll_Fig1.mxd
PLOTTED: 7/21/2023, KHagan
20201466
JUL 2023
C. HILLARD
K. HAGAN
TransJordan Landfill
B a c c h u s H ig h w a y ¬«111
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BACCHUS HIGHWAY
UV111
11800 SOUTH
OU 17 Bastian Sink
TransJordan Composting Facility
OU 17 Bastian Sink
Recreation Parcel
Commercial Development Parcel
Substation Parcel
OU 6 Lark Waste Rockand Tailings
OU 6 Lark Waste Rockand Tailings
Proposed Highw ay 111 AlignmentProposed Highw ay 111 Alignment
East Lark Residential ParcelWest Lark R esidential Parcel
Bastian Ditch Drainage
Bastian Ditch DrainagesBastian Ditch Drainages
KP-1W
KE-80
KE-79
KE-78
KE-77
KE-76
KE-75
KE-74
KE-73
KE-72
KE-71 KE-70
KE-69
KE-68
KE-67
KE-65
KE-64
KE-63
KE-62
KE-61
KE-60
KE-59
KE-58
KE-57
KE-56
KE-55
KE-54
KE-53
KE-52
KE-51
KE-50
KE-49
KE-48
KE-46
KE-45
KE-44
KE-42
KE-41
KE-40
KE-86
KE 85
KE-84KE-83KE-82KE-81
KE-38
KE-39
KE-47
KE-66 KE-43
KE-59BD
KE-57BD
KE-54BD
KE-48BD
KE-51BD
KS-7
KS-2 KS-6KS-4
KS-1 KS-5KS-3
KP-9
KP-8
KP-6
KP-5
KP-4
KP-7
KP-1
KP-24
KP-23
KP-22
KP-19
KP-12
KP-21
KP-42
KP-41
KP-18
KP-20
KP-10
KP-11
KP-2C
KP-3C
KP-13
KP-25
KP-14
KP-15
KP-49
KP-50
KP-48
KP-45
KP-46
KP-47
KP-44
KP-43
KP-27
KP-29
KP-30
KP-31
KP-32
KP-33
KP-34
KP-35
KP-36
KP-37
KP-38
KP-39
KP-40
KP-28
KP-16
KP-26
KP-17
KT-7
KT-11
KT-4
KT-5
KT-8
KT-6
KT-9
KT-13
KT-14
KT-12
KT-10
PROPOSED LAND USE A NDPRIOR SITE CHARACTERIZATION RESULTS
LARK MONOFILLNORTHEAST CORNER OF HIGHWAY 111 AND 11800 SOUTHSOUTH JORD AN, UTAH
FIGURE2
0 200 400Feet£Locations are Approximate
SALT LAKE CITY, UT
L:\2020\20201466.001A - Lark Monofill\2.0 Technical Information\2.8 GIS
PLOTTED: 7/28/2023, KHagan
Explanation
!(Lead and Arsenic < U nrestricted Land Use
!(Lead and Arsenic > U nrestricted Land Use Standardsbut < Commer cial Land Use Standards
!(Lead and Arsenic > C ommercial Land Use
Proposed Highw ay 111 Alignment
Main Bastian Ditch Channel
Side D rainage
Bastian Ditch Drainage Sediments w ith Elevated MetalsLeft Outside Lark Fenceline During Bastian D itchDrainage Excavation by R io Tinto (2015)
Bastian Ditch Drainage KUC Excavation Area
OU6 Lar k Waste Rock and Tailings
OU17 Bastian Sink
Approximate Site Boundary
LandUse_Fig2.mxd
FILE NAME:
C. HILLARDCHECKED BY:
K. HAGANDRAWN BY:
JUL 2023DRAWN:
20201466PROJECT N O:The inform ation included on this graphicrepresentation has been compiled from a varietyof sources and is subject to change withoutnotice. Kleinfelder m akes no representations orwarranties, express or implied, as to accuracy,completeness, tim eliness, or rights to the use ofsuch information. This document is not intendedfor use as a land survey product nor is it designedor intended as a construction design docum ent.The use or misuse of the information containedon this graphic representation is at the sole risk ofthe party using or misusing the inform ation.
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Com munity; ESRI W orld Imagery,Salt Lake County image 10/15/2021.
BACCHUS HIGHWAY
UV111
11800 SOUTH
SOIL EXCAVATION BOUND ARY
LARK MONOFILLNORTHEAST CORNER OF HIGHWAY 111 AND 11800 SOUTHSOUTH JORD AN, UTAH
FIGURE3
ExcavAll_Fig3.mxd
FILE NAME:
C. HILLARDCHECKED BY:
K. HAGANDRAWN BY:
JUL 2023DRAWN:
20201466PROJECT N O:
SALT LAKE CITY, UT
\\azrgisstorp03\GIS_Projects\Client\SOJO118\20201466.04-LarkMonofill\ExcavAll_Fig3.mxd
PLOTTED: 7/21/2023, KHagan
The inform ation included on this graphicrepresentation has been compiled from a varietyof sources and is subject to change withoutnotice. Kleinfelder m akes no representations orwarranties, express or implied, as to accuracy,completeness, tim eliness, or rights to the use ofsuch information. This document is not intendedfor use as a land survey product nor is it designedor intended as a construction design docum ent.The use or misuse of the information containedon this graphic representation is at the sole risk ofthe party using or misusing the inform ation.
0 200 400Feet
£
Locations are Approximate
Explanation
Main Bastian D itch C hannel
Side Drainage
Bastian Ditch Drainage Sedim ents with ElevatedMetals Left on Daybreak Property During BastianDitch Drainage Excvavation by Rio Tinto (2015)
Recreation Parcel
Commercial Development and Substation Parcels
Excavation Area (Kleinfelder)
Bastian Ditch Drainage KUC Excavation Area
Approximate Site Boundary
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Com munity; ESRI W orld Imagery,Salt Lake County image 10/15/2021.
BACCHUS HIGHWAY
UV111
11800 SOUTH
FIGURE 3-2
FIGURE 3-3
FIGURE 3-4
FIGURE 3-7 FIGURE 3-8
FIGURE 3-9
FIGURE 3-6FIGURE 3-5
POST-REMOVAL SAM PLES - DETAIL EXTENTS
LARK MONOFILLNORTHEAST CORNER OF HIGHWAY 111 AND 11800 SOUTHSOUTH JORD AN, UTAH
FIGURE3-1
ExcavAll_Fig3-1.mxd
FILE NAME:
C. HILLARDCHECKED BY:
K. HAGANDRAWN BY:
JUL 2023DRAWN:
20201466PROJECT N O:
SALT LAKE CITY, UT
\\azrgisstorp03\GIS_Projects\Client\SOJO118\20201466.04-LarkMonofill\ExcavAll_Fig3-1.mxd
PLOTTED: 7/21/2023, KHagan
The inform ation included on this graphicrepresentation has been compiled from a varietyof sources and is subject to change withoutnotice. Kleinfelder m akes no representations orwarranties, express or implied, as to accuracy,completeness, tim eliness, or rights to the use ofsuch information. This document is not intendedfor use as a land survey product nor is it designedor intended as a construction design docum ent.The use or misuse of the information containedon this graphic representation is at the sole risk ofthe party using or misusing the inform ation.
0 200 400Feet
£
Locations are Approximate
Explanation
Main Bastian D itch C hannel
Side Drainage
Elevated Metals Left at Fenceline D uringKleinfelder E xcavation
Bastian Ditch Drainage Sedim ents with ElevatedMetals Left on Daybreak Property During BastianDitch Drainage Excvavation by Rio Tinto (2015)
Excavation Area (Kleinfelder)
Recreation Parcel
Commercial Development and Substation Parcels
Bastian Ditch Drainage KUC Excavation Area
Approximate Site Boundary
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Com munity; ESRI W orld Imagery,Salt Lake County image 10/15/2021.
MAP LEGEND
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DS-24 DG-24
Soil w ith elevated lead found at property line,represented by sample R -4 (1,510 mg/kg lead).XRF readings near R-4 ranged from 2,000 to5,000 mg/kg lead at 1.5 feet deep.
KP-2CLead: 799 mg/kg at 3 feet bgs
R-4
KP-1WLead: 545 to 1,630 mg/kg at 10-13 feet bgs
KP-2C
POST-REMOVAL SAM PLES
LARK MONOFILLNORTHEAST CORNER OF HIGHWAY 111 AND 11800 SOUTHSOUTH JORD AN, UTAH
FIGURE3-2
ExcavAll_2023.mxd
FILE NAME:
C. HILLARDCHECKED BY:
K. HAGANDRAWN BY:
JUL 2023DRAWN:
20201466PROJECT N O:
SALT LAKE CITY, UT
\\azrgisstorp03\GIS_Projects\Client\SOJO118\20201466.04-LarkMonofill\ExcavAll_2023.mxd
PLOTTED: 7/21/2023, KHagan
Explanation
!(Post-Rem oval Excavation Floor Sam ple
!(Post-Rem oval Excavation Sidewall Sam ple
!(Characterization
Composite Sam ple G roupMain Bastian D itch
Side Drainage
Elevated Metals Left at Fenceline D uringKleinfelder E xcavation
Excavation Area (Kleinfelder)
Approximate Site Boundary
The inform ation included on this graphicrepresentation has been compiled from a varietyof sources and is subject to change withoutnotice. Kleinfelder m akes no representations orwarranties, express or implied, as to accuracy,completeness, tim eliness, or rights to the use ofsuch information. This document is not intendedfor use as a land survey product nor is it designedor intended as a construction design docum ent.The use or misuse of the information containedon this graphic representation is at the sole risk ofthe party using or misusing the inform ation.
0 40 80Feet£Locations are Approximate
Source: Esri, Maxar, Earthstar Geographics,and the GIS User Com munity; ESRI W orldImagery, Salt Lake County im age 10/15/2021.
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G-26S SouthSidewall impacts remain(600 to 800 mg/kg lead)at 10 to 17 feet deep(see Figure 4)
POST-REMOVAL SAM PLES
LARK MONOFILLNORTHEAST CORNER OF HIGHWAY 111 AND 11800 SOUTHSOUTH JORD AN, UTAH
FIGURE3-3
ExcavAll_2023.mxd
FILE NAME:
C. HILLARDCHECKED BY:
K. HAGANDRAWN BY:
JUL 2023DRAWN:
20201466PROJECT N O:
SALT LAKE CITY, UT
\\azrgisstorp03\GIS_Projects\Client\SOJO118\20201466.04-LarkMonofill\ExcavAll_2023.mxd
PLOTTED: 7/21/2023, KHagan
Explanation
!(Post-Rem oval Excavation Floor Sam ple
!(Post-Rem oval Excavation Sidewall Sam ple
Composite Sam ple G roup
Main Bastian D itch C hannel
Side Drainage
Elevated Metals Left at Fenceline D uringKleinfelder E xcavation
Bastian Ditch Drainage Sedim ents with ElevatedMetals Left on Daybreak Property During BastianDitch Drainage Excvavation by Rio Tinto (2015)
Excavation Area (Kleinfelder)
Recreation Parcel
Bastian Ditch Drainage KUC Excavation Area
Approximate Site Boundary
The inform ation included on this graphicrepresentation has been compiled from a varietyof sources and is subject to change withoutnotice. Kleinfelder m akes no representations orwarranties, express or implied, as to accuracy,completeness, tim eliness, or rights to the use ofsuch information. This document is not intendedfor use as a land survey product nor is it designedor intended as a construction design docum ent.The use or misuse of the information containedon this graphic representation is at the sole risk ofthe party using or misusing the inform ation.
0 40 80Feet£Locations are Approximate
Source: Esri, Maxar, Earthstar Geographics,and the GIS User Com munity; ESRI W orldImagery, Salt Lake County im age 10/15/2021.
Sidewall impacts remain
(600 to 800 mg/kg lead)
at 15 to 18 feet deep.
(See Figure 6)
Sidewall impacts remain
(600 to 800 mg/kg lead)
btw 17 and 18 feet deep.
(See Figure 6)
Lead concentrations of
600 to 800 mg/kg remain
on the sidewall at 17 to
18 feet deep.
(See Figure 6)
Lead concentrations of
600 to 899 mg/kg remain
in-situ at 17 to 18 feet deep.
(See Figure 6)
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POST-REMOVAL SAM PLES
LARK MONOFILLNORTHEAST CORNER OF HIGHWAY 111 AND 11800 SOUTHSOUTH JORD AN, UTAH
FIGURE3-4
ExcavAll_2023.mxd
FILE NAME:
C. HILLARDCHECKED BY:
K. HAGANDRAWN BY:
JUL 2023DRAWN:
20201466PROJECT N O:
SALT LAKE CITY, UT
\\azrgisstorp03\GIS_Projects\Client\SOJO118\20201466.04-LarkMonofill\ExcavAll_2023.mxd
PLOTTED: 7/21/2023, KHagan
Explanation
!(Post-Rem oval Excavation Floor Sam ple
!(Post-Rem oval Excavation Sidewall Sam ple
Composite Sam ple G roup
Main Bastian D itch C hannel
Excavation Area (Kleinfelder)
Approximate Site Boundary
The inform ation included on this graphicrepresentation has been compiled from a varietyof sources and is subject to change withoutnotice. Kleinfelder m akes no representations orwarranties, express or implied, as to accuracy,completeness, tim eliness, or rights to the use ofsuch information. This document is not intendedfor use as a land survey product nor is it designedor intended as a construction design docum ent.The use or misuse of the information containedon this graphic representation is at the sole risk ofthe party using or misusing the inform ation.
0 40 80Feet£Locations are Approximate
Source: Esri, Maxar, Earthstar Geographics,and the GIS User Com munity; ESRI W orldImagery, Salt Lake County im age 10/15/2021.
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DG-22
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DG-15
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DG-1
DG-21
11800 SOUTHSoil with elevated metals continues south of Site,represented by samples R-1 (2,740 mg/kg lead)and R -2 (740 mg/kg lead). Ditch is 10 - 20 feetwide and 3 to 5 feet deep at the property line.
Soil with elevated metals continues south of Site,represented by samples R-1 (2,740 mg/kg lead)and R -2 (740 mg/kg lead). Ditch is 10 - 20 feetwide and 3 to 5 feet deep at the property line.
R-2R-1
POST-REMOVAL SAM PLES
LARK MONOFILLNORTHEAST CORNER OF HIGHWAY 111 AND 11800 SOUTHSOUTH JORD AN, UTAH
FIGURE3-5
ExcavAll_2023.mxd
FILE NAME:
C. HILLARDCHECKED BY:
K. HAGANDRAWN BY:
JUL 2023DRAWN:
20201466PROJECT N O:
SALT LAKE CITY, UT
\\azrgisstorp03\GIS_Projects\Client\SOJO118\20201466.04-LarkMonofill\ExcavAll_2023.mxd
PLOTTED: 7/21/2023, KHagan
Explanation
!(Post-Rem oval Excavation Floor Sam ple
!(Post-Rem oval Excavation Sidewall Sam ple
!(Characterization S am ple
Composite Sam ple G roup
Main Bastian D itch C hannel
Side Drainage
Elevated Metals Left at Fenceline D uringKleinfelder E xcavation
Excavation Area (Kleinfelder)
Commercial Development Parcel
Approximate Site Boundary
The inform ation included on this graphicrepresentation has been compiled from a varietyof sources and is subject to change withoutnotice. Kleinfelder m akes no representations orwarranties, express or implied, as to accuracy,completeness, tim eliness, or rights to the use ofsuch information. This document is not intendedfor use as a land survey product nor is it designedor intended as a construction design docum ent.The use or misuse of the information containedon this graphic representation is at the sole risk ofthe party using or misusing the inform ation.
0 40 80Feet£Locations are Approximate
Source: Esri, Maxar, Earthstar Geographics,and the GIS User Com munity; ESRI W orldImagery, Salt Lake County im age 10/15/2021.
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11800 SOUTH Bastian Ditch soil with elevated metals continuessouth of Site. XRF results of impacts at the fence/property line range between 400 to 3,900 mg/kglead, represented by sample R-3 (1,200 mg/kglead). Ditch is approximately 20 feet wide and 4feet deep at the property line.
R-3
POST-REMOVAL SAM PLES
LARK MONOFILLNORTHEAST CORNER OF HIGHWAY 111 AND 11800 SOUTHSOUTH JORD AN, UTAH
FIGURE3-6
ExcavAll_2023.mxd
FILE NAME:
C. HILLARDCHECKED BY:
K. HAGANDRAWN BY:
JUL 2023DRAWN:
20201466PROJECT N O:
SALT LAKE CITY, UT
\\azrgisstorp03\GIS_Projects\Client\SOJO118\20201466.04-LarkMonofill\ExcavAll_2023.mxd
PLOTTED: 7/21/2023, KHagan
Explanation
!(Post-Rem oval Excavation Floor Sam ple
!(Post-Rem oval Excavation Sidewall Sam ple
!(Characterization S am ple
Composite Sam ple G roup
Main Bastian D itch C hannel
Elevated Metals Left at Fenceline D uringKleinfelder E xcavation
Excavation Area (Kleinfelder)
Approximate Site Boundary
The inform ation included on this graphicrepresentation has been compiled from a varietyof sources and is subject to change withoutnotice. Kleinfelder m akes no representations orwarranties, express or implied, as to accuracy,completeness, tim eliness, or rights to the use ofsuch information. This document is not intendedfor use as a land survey product nor is it designedor intended as a construction design docum ent.The use or misuse of the information containedon this graphic representation is at the sole risk ofthe party using or misusing the inform ation.
0 40 80Feet£Locations are Approximate
Source: Esri, Maxar, Earthstar Geographics,and the GIS User Com munity; ESRI W orldImagery, Salt Lake County im age 10/15/2021.
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POST-REMOVAL SAM PLES
LARK MONOFILLNORTHEAST CORNER OF HIGHWAY 111 AND 11800 SOUTHSOUTH JORD AN, UTAH
FIGURE3-7
ExcavAll_2023.mxd
FILE NAME:
C. HILLARDCHECKED BY:
K. HAGANDRAWN BY:
JUL 2023DRAWN:
20201466PROJECT N O:
SALT LAKE CITY, UT
\\azrgisstorp03\GIS_Projects\Client\SOJO118\20201466.04-LarkMonofill\ExcavAll_2023.mxd
PLOTTED: 7/21/2023, KHagan
Explanation
!(Post-Rem oval Excavation Floor Sam ple
!(Post-Rem oval Excavation Sidewall Sam ple
Composite Sam ple G roup
Side Drainage
Bastian Ditch Drainage Sedim ents with ElevatedMetals Left on Daybreak Property During BastianDitch Drainage Excvavation by Rio Tinto (2015)
Excavation Area (Kleinfelder)
Recreation Parcel
Bastian Ditch Drainage KUC Excavation Area
Approximate Site Boundary
The inform ation included on this graphicrepresentation has been compiled from a varietyof sources and is subject to change withoutnotice. Kleinfelder m akes no representations orwarranties, express or implied, as to accuracy,completeness, tim eliness, or rights to the use ofsuch information. This document is not intendedfor use as a land survey product nor is it designedor intended as a construction design docum ent.The use or misuse of the information containedon this graphic representation is at the sole risk ofthe party using or misusing the inform ation.
0 40 80Feet£Locations are Approximate
Source: Esri, Maxar, Earthstar Geographics,and the GIS User Com munity; ESRI W orldImagery, Salt Lake County im age 10/15/2021.
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KT-8-7
KT-8-6KT-8-5
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KT-8-3
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C7FS-12
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C7 FS-2
KT-8-12
POST-REMOVAL SAM PLES
LARK MONOFILLNORTHEAST CORNER OF HIGHWAY 111 AND 11800 SOUTHSOUTH JORD AN, UTAH
FIGURE3-8
ExcavAll_2023.mxd
FILE NAME:
C. HILLARDCHECKED BY:
K. HAGANDRAWN BY:
JUL 2023DRAWN:
20201466PROJECT N O:
SALT LAKE CITY, UT
\\azrgisstorp03\GIS_Projects\Client\SOJO118\20201466.04-LarkMonofill\ExcavAll_2023.mxd
PLOTTED: 7/21/2023, KHagan
Explanation
!(Post-Rem oval Excavation Floor Sam ple
!(Post-Rem oval Excavation Sidewall Sam ple
Composite Sam ple G roup
Bastian Ditch Drainage Sedim ents with ElevatedMetals Left on Daybreak Property During BastianDitch Drainage Excvavation by Rio Tinto (2015)
Excavation Area (Kleinfelder)
Recreation Parcel
Bastian Ditch Drainage KUC Excavation Area
Approximate Site Boundary
The inform ation included on this graphicrepresentation has been compiled from a varietyof sources and is subject to change withoutnotice. Kleinfelder m akes no representations orwarranties, express or implied, as to accuracy,completeness, tim eliness, or rights to the use ofsuch information. This document is not intendedfor use as a land survey product nor is it designedor intended as a construction design docum ent.The use or misuse of the information containedon this graphic representation is at the sole risk ofthe party using or misusing the inform ation.
0 40 80Feet£Locations are Approximate
Source: Esri, Maxar, Earthstar Geographics,and the GIS User Com munity; ESRI W orldImagery, Salt Lake County im age 10/15/2021.
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POST-REMOVAL SAM PLES
LARK MONOFILLNORTHEAST CORNER OF HIGHWAY 111 AND 11800 SOUTHSOUTH JORD AN, UTAH
FIGURE3-9
ExcavAll_2023.mxd
FILE NAME:
C. HILLARDCHECKED BY:
K. HAGANDRAWN BY:
JUL 2023DRAWN:
20201466PROJECT N O:
SALT LAKE CITY, UT
\\azrgisstorp03\GIS_Projects\Client\SOJO118\20201466.04-LarkMonofill\ExcavAll_2023.mxd
PLOTTED: 7/21/2023, KHagan
Explanation
!(Post-Rem oval Excavation Floor Sam ple
!(Post-Rem oval Excavation Sidewall Sam ple
Composite Sam ple G roup
Bastian Ditch Drainage Sedim ents with ElevatedMetals Left on Daybreak Property During BastianDitch Drainage Excvavation by Rio Tinto (2015)
Excavation Area (Kleinfelder)
Substation P arcel
Bastian Ditch Drainage KUC Excavation Area
Approximate Site Boundary
The inform ation included on this graphicrepresentation has been compiled from a varietyof sources and is subject to change withoutnotice. Kleinfelder m akes no representations orwarranties, express or implied, as to accuracy,completeness, tim eliness, or rights to the use ofsuch information. This document is not intendedfor use as a land survey product nor is it designedor intended as a construction design docum ent.The use or misuse of the information containedon this graphic representation is at the sole risk ofthe party using or misusing the inform ation.
0 40 80Feet£Locations are Approximate
Source: Esri, Maxar, Earthstar Geographics,and the GIS User Com munity; ESRI W orldImagery, Salt Lake County im age 10/15/2021.
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ES-9
ES-8
ES-6
ES-5
ES-3ES-2ES-1
ES-35
ES-34
ES-99ES-98 ES-97
ES-96
ES-95 ES-94ES-93ES-92
ES-90
ES-87
ES-85 ES-84
ES-81 ES-80
ES-76ES-74
ES-72
ES-71
ES-68
ES-66
ES-64ES-60
ES-59
ES-57ES-56ES-55
ES-53
ES-50
ES-47
ES-44
ES-16 ES-14ES-13ES-12
ES-10
ES-42
ES-40ES-39ES-37ES-36
ES-33ES-32 ES-31
ES-30ES-27
ES-22ES-18
ES-306
ES-304
ES-303
ES-302
ES-301
ES-300 ES-299 ES-297
ES-294
ES-291
ES-289
ES-287
ES-284
ES-283
ES-282ES-281 ES-280ES-279
ES-278
ES-277
ES-276
ES-275
ES-273
ES-272
ES-271ES-270
ES-266ES-265
ES-264ES-263
ES-261
ES-259
ES-257
ES-255
ES-252
ES-241ES-240ES-239
ES-234
ES-232
ES-230
ES-237ES-236
ES-235
ES-223
ES-229
ES-228ES-227
ES-226
ES-224ES-247
ES-246
ES-245
ES-222
ES-242
ES-218ES-217
ES-214
ES-213
ES-210
ES-209
ES-208
ES-207
ES-206
ES-204
ES-203
ES-201ES-200
ES-196
ES-193
ES-192
ES-190
ES-188
ES-187
ES-181
ES-166
ES-164ES-163
ES-160ES-159
ES-157ES-156
ES-154ES-153
ES-151
ES-149
ES-147
ES-146ES-145ES-144
ES-134
ES-133
ES-142ES-141ES-140ES-139
ES-137
ES-123
ES-122
ES-119
ES-117
ES-115
ES-125ES-124
ES-131
ES-126
ES-114
ES-113
ES-111
ES-109ES-107
ES-7
ES-4
ES-91
ES-89 ES-88
ES-86
ES-83 ES-82
ES-79 ES-78ES-77
ES-75 ES-73
ES-70
ES-69ES-67ES-65
ES-63
ES-62ES-61
ES-58
ES-54
ES-52
ES-51
ES-49 ES-48
ES-46ES-45
ES-43
ES-15
ES-11
ES-41
ES-29ES-28
ES-26
ES-25
ES-24ES-23
ES-21ES-20
ES-19ES-17
ES-305
ES-298ES-296
ES-295
ES-293ES-292
ES-290
ES-288
ES-286
ES-285
ES-274
ES-269
ES-268ES-267
ES-262
ES-260
ES-258
ES-256
ES-254ES-253
ES-251
ES-250ES-249ES-248
ES-238
ES-233
ES-231
ES-225
ES-244
ES-243
ES-221
ES-220ES-219
ES-216
ES-215
ES-212
ES-211
ES-205
ES-202
ES-199ES-198
ES-197
ES-195
ES-194
ES-191
ES-189
ES-186
ES-180ES-179
ES-178
ES-177ES-176ES-175
ES-185
ES-184ES-183
ES-182
ES-174ES-173ES-172ES-171
ES-170ES-169ES-168ES-167
ES-165
ES-162
ES-161
ES-158
ES-155
ES-152
ES-150
ES-148
ES-143
ES-138
ES-136
ES-135
ES-121
ES-120
ES-118
ES-116
ES-132ES-130
ES-129
ES-128
ES-127
ES-112
ES-110
ES-108
ES-106ES-105 ES-104
ES-103ES-102 ES-101ES-100
ES-125
ES-124
BACCHUS HIGHWAY
UV111
EXCAVATED BASTIAN DITCHSTOCKPILE SAMPLES
LARK MONOFILLNORTHEAST CORNER OF HIGHWAY 111 AND 11800 SOUTHSOUTH JORD AN, UTAH
FIGURE4
ExcavAll_Fig4.mxd
FILE NAME:
C. HILLARDCHECKED BY:
K. HAGANDRAWN BY:
JUL 2023DRAWN:
20201466PROJECT N O:
SALT LAKE CITY, UT
\\azrgisstorp03\GIS_Projects\Client\SOJO118\20201466.04-LarkMonofill\ExcavAll_Fig4.mxd
PLOTTED: 7/21/2023, KHagan
The inform ation included on this graphicrepresentation has been compiled from a varietyof sources and is subject to change withoutnotice. Kleinfelder m akes no representations orwarranties, express or implied, as to accuracy,completeness, tim eliness, or rights to the use ofsuch information. This document is not intendedfor use as a land survey product nor is it designedor intended as a construction design docum ent.The use or misuse of the information containedon this graphic representation is at the sole risk ofthe party using or misusing the inform ation.
0 100 200Feet
£
Locations are Approximate
Explanation
!(Stockpile Sam ple
Main Bastian D itch C hannel
Side Drainage
Recreation Parcel
Commercial Development and Substation Parcels
Excavation Area (Kleinfelder)
Bastian Ditch Drainage KUC Excavation Area
Approximate Site Boundary
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Com munity; ESRI W orld Imagery,Salt Lake County image 10/15/2021.
11800 SOUTH
IMPACTED SOIL FOOTPRINTIN COMM ERC IAL PARCEL
LARK MONOFILLNORTHEAST CORNER OF HIGHWAY 111 AND 11800 SOUTHSOUTH JORD AN, UTAH
FIGURE5
ExcavAll_Fig5.mxd
FILE NAME:
C. HILLARDCHECKED BY:
K. HAGANDRAWN BY:
JUL 2023DRAWN:
20201466PROJECT N O:
SALT LAKE CITY, UT
\\azrgisstorp03\GIS_Projects\Client\SOJO118\20201466.04-LarkMonofill\ExcavAll_Fig5.mxd
PLOTTED: 7/21/2023, KHagan
The inform ation included on this graphicrepresentation has been compiled from a varietyof sources and is subject to change withoutnotice. Kleinfelder m akes no representations orwarranties, express or implied, as to accuracy,completeness, tim eliness, or rights to the use ofsuch information. This document is not intendedfor use as a land survey product nor is it designedor intended as a construction design docum ent.The use or misuse of the information containedon this graphic representation is at the sole risk ofthe party using or misusing the inform ation.
0 50 100Feet£Locations are Approximate
Explanation
Impacted S oil Footprint
Commercial Development Parcel
Approximate Site Boundary
Source: Esri, Maxar, Earthstar Geographics, and the GIS UserCommunity; ESR I World Imagery, Salt Lake County image10/15/2021.
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C9
G-8
G-1G-2
G-3
G-4
C10
I-9
I-8
I-7
I-5
I-4
I-3
I-2
I-1
F-6
F-3
G-7
G-9
G-6
G-5
F-4
C11
D-3
D-2
D-1
E-6
E-5
E-4
E-3
E-2
E-1
G-11
G-35 G-63
G-67
G-66 G-65
G-64
G-59
G-62
G-61G-60G-58
G-57
G-56
G-55
G-49
G-50 G-51
G-47
G-46
G-54
G-53
G-52
G-45
G-44
G-39 G-42
G-43
G-40 G-41
G-38
G-37
G-36
G-34
G-33 G-32
G-31
G-30G-29G-28
G-25
G-23
G-22
G-21
G-20
C7-A
C7-B
F-16
G-16G-17G-18
G-14 G-15G-13
G-12
G-10
CTP-7
CTP-6
STP-9
RTP-2
RTP-3
CTP-3
CTP-9
CTP-8
CTP-2
CTP-1
G-26 S
WETP-3
WETP-5
WETP-7WETP-8
WETP-4
STP-10
WETP-6 CTP-11
CTP-10
CTP-12
WETP-2a
WETP-1a
G-48
G-26G-27 G-24
G-19
G-7A
G-19A
G-23C
CTP-5
CHARACTERIZATION SAMPLES
LARK MONOFILLNORTHEAST CORNER OF HIGHWAY 111 AND 11800 SOUTHSOUTH JORD AN, UTAH
FIGURE6
CharAll_2023.mxd
FILE NAME:
C. HILLARDCHECKED BY:
K. HAGANDRAWN BY:
JUL 2023DRAWN:
20201466PROJECT N O:
SALT LAKE CITY, UT
\\azrgisstorp03\GIS_Projects\Client\SOJO118\20201466.04-LarkMonofill\CharAll_2023.mxd
PLOTTED: 7/28/2023, KHagan
The inform ation included on this graphicrepresentation has been compiled from a varietyof sources and is subject to change withoutnotice. Kleinfelder m akes no representations orwarranties, express or implied, as to accuracy,completeness, tim eliness, or rights to the use ofsuch information. This document is not intendedfor use as a land survey product nor is it designedor intended as a construction design docum ent.The use or misuse of the information containedon this graphic representation is at the sole risk ofthe party using or misusing the inform ation.
0 100 200Feet
£
Locations are Approximate
Explanation
!(< 500 mg/kg Lead
!(500 - 700 mg/kg Lead
!(700 - 1,100 mg/kg Lead
Deep soil impacts between 700 and 1,100 mg/kg lead
Proposed Highw ay 111
Recreation Parcel
Main Bastian Ditch Channel
Side D rainages Visible on H istorical Aerial Photos
Bastian Ditch Drainage Sediments w ith Elevated MetalsLeft Outside Lark Fenceline During Bastian D itchDrainage Excavation by R io Tinto
Excavation Area (Kleinfelder 2021)
Bastian Ditch Drainage KUC Excavation Area
Approximate Site Boundary
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Com munity; ESRI W orld Imagery,Salt Lake County image 10/15/2021.
Ap
p
e
n
d
i
x

A

20201466.001A/SLC23R156681_ FINAL July 31, 2023
© 2023 Kleinfelder www.kleinfelder.com

849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
APPENDIX A
PRIOR INVESTIGATION DATA AND REGULATORY APPROVAL LETTERS
___________________________________________________________________________________

· RioTinto Figures – Bastian Ditch Drainage Soil Impacts Left at Property Line.
· Bevill Exclusion Approval Letter from Utah Div. Waste Management.
· Lark Remediation Work Plan Approval Letter from UDERR.
· Use of Daybreak Residential and Commercial Standards Approval from UDERR.
· Lark Work Plan Addendum One Approval Letter from UDERR.
· Lark Substation Remediation NFA Letter from UDERR.

1
Corinne Hillard
From:Katie Crane <[e-mail]>
Sent:Thursday, August 5, 2021 2:24 PM
To:Corinne Hillard
Subject:Re: Clarification question re: Lark Monofill Soil Removal Work Plan
External Email

Hello Corrine,

Upon further discussion with our toxicologist, and the Kennecott Project Manager, the Daybreak Commercial Land Use
Action Levels of 2,000 mg/kg lead and 450 mg/kg arsenic that we agreed to in the April 16th Work Plan were intended to
be applied to material located in the east side ditch only. This was based on the assumption that the material in the
eastside ditch was the same as the contaminated material on the Daybreak property, and therefore had the same
properties. However, that assumption cannot be made for the whole Lark Monofil site and our intent was not to accept
this value across the whole site. Based on our review of our April comments we agree that we were unclear, and will
accept the Daybreak Commercial Land Use Action Levels for soils throughout the entire site being moved to the
commercial-use platted area in the Southwest corner of the site.

We cannot accept the Daybreak Residential Land Use Action Levels of 700 mg/kg lead and 100 mg/kg arsenic for the
reasons discussed above for the entire site, without the appropriate evaluation of a residential scenario with the specific
contaminated material. As originally intended, we can agree to the Daybreak Residential Land Use Action Levels of 700
mg/kg lead and 100 mg/kg arsenic within the east side ditch along the east property line only. I will note, based on the
conversation we had last week, you indicated the contaminated material was around ten feet below ground surface.
Contaminated material at a two-foot depth is most likely protective (if left undisturbed) and we could agree to leave
material at depth, but we would require institutional controls down to ten feet. Please let me know if this is something
you would like to discuss further.

We can agree with stockpiling the soil alongside the ditch and collecting composite samples. Please submit an
addendum to the Work Plan.

Thank you,
Katie

2053 N. HILLCREST RD. SARATOGA SPRINGS, UT 84045
THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 N HILLCREST ROAD,SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION
"\
"\"\!1167 160707-2
!
1167 160623-1SOIL WITH ELEVATEDLEAD (1500 TO 2600 PPM)LEFT IN PLACE ADJACENT TOFENCE ON PROPERTY LINE(REPRESENTED BY SAMPLES1167Z-40 TO 1167Z-43)
!
PROPERTY LINE
11800 S
DAYBREAK COMMERCEPARK/WEST VILLAGESOIL REMOVAL
SALT LAKE COUNTY, UT
KENNECOTT LANDCOMPANY
1167 A-8Date
Project
Scale
Sheet
1 " = 160 '
05-OCT-2016
0 80 160
SCALE IN FEET
OLD BINGHAM HWY
MOUN
TA
I
N
V
I
E
W
C
O
R
RID
O
R
11800 SOUTH
BA
C
C
H
U
S

H
W
Y
!
SITE LOCATION
BASTIAN DITCHDRAINAGE SITE FIELDOBSERVATIONS
SOIL REMOVAL AREA
SOIL WITH COCs LEFT IN PLACE
FOUND HISTORICAL DITCH
"\PHOTOGRAPH LOCATION
2053 N. HILLCREST RD. SARATOGA SPRINGS, UT 84045
THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 N HILLCREST ROAD,SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION
"\
"\
"\
"\"\
"\
"\
"\
!
1167 160804-3
!1167 160714-1
!1167 160706-2
!1167 160706-1
!1167 160714-2
!
1167 160729-3
SOIL WITH ELEVATEDLEAD (500 TO 700 PPM)LEFT IN PLACE ADJACENT TOFENCE ON PROPERTY LINE(NOT SAMPLED DUE TODEPTH OF REMOVAL)
!PROPERTY LINE
SOIL WITH ELEVATEDLEAD (500 TO 1000 PPM)LEFT IN PLACE ADJACENT TOFENCE ON PROPERTY LINE(REPRESENTED BY SAMPLES1167Z-59 TO 1167Z-60)
!
PROPERTY LINE
SOIL WITH ELEVATED LEAD (800 TO 1100 PPM)WAS FOUND ADJACENT TO THE FENCE ANDPROPERTY LINE BETWEEN 1 AND 6 FEET DEEP.THIS SOIL DID NOT EXTEND FAR ENOUGH ONTOTHE PROPERTY TO JUSTIFY REMOVAL.(REPRESENTED BY SAMPLE 1167Z-111)
ABUNDANT IRON OXIDE STAININGWAS FOUND IN THE SOIL ADJACENTTO THE FENCE AND PROPERTY LINELEAD CONCENTRATIONS IN THISSOIL WERE BELOW THE ACTION LEVEL
!10-FOOT SIDEWALL3-FOOT SIDEWALL
IRON-OXIDE STAINED SOIL WITHELEVATED LEAD (600 TO 1100 PPM)WAS FOUND AS DEEP AS 10 FEETWHERE THE HISTORIC DITCHCROSSED THE PROPERTY LINE
DAYBREAK COMMERCEPARK/WEST VILLAGESOIL REMOVAL
SALT LAKE COUNTY, UT
KENNECOTT LANDCOMPANY
1167 A-10Date
Project
Scale
Sheet
1 " = 200 '
05-OCT-2016
0 100 200
SCALE IN FEET
OLD BINGHAM HWY
MOUN
TA
I
N
V
I
E
W
C
O
R
RID
O
R
11800 SOUTH
BA
C
C
H
U
S

H
W
Y
!
SITE LOCATION
BASTIAN DITCHDRAINAGE SITE FIELDOBSERVATIONS
SOIL REMOVAL AREA
SOIL WITH COCs LEFT IN PLACE
FOUND HISTORICAL DITCH
"\PHOTOGRAPH LOCATION
2053 N. HILLCREST RD. SARATOGA SPRINGS, UT 84045
THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 N HILLCREST ROAD,SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION
"\
"\
"\
"\!
1167 160804-3!1167 160728-1
!
1167 160802-3
!
1167 160727-1
SOIL WITH ELEVATEDLEAD (500 TO 1200 PPM)LEFT IN PLACE ADJACENT TOFENCE ON PROPERTY LINE(REPRESENTED BY SAMPLES1167Z-128 AND 1167Z-129)
SOIL WITH ELEVATEDLEAD (500 TO 700 PPM)LEFT IN PLACE ADJACENT TOFENCE ON PROPERTY LINE(NOT SAMPLED DUE TODEPTH OF REMOVAL)
!
PROPERTY LINE
!
PROPERTY LINE
!SOUTH VALLEY WATER RECLAMATIONBIOSOLIDS DISPOSAL FACILITY
!10-FOOT SIDEWALL
!3-FOOT SIDEWALL
IRON-OXIDE STAINED SOIL WITHELEVATED LEAD (600 TO 1100 PPM)WAS FOUND AS DEEP AS 10 FEETWHERE THE HISTORIC DITCHCROSSED THE PROPERTY LINE
DAYBREAK COMMERCEPARK/WEST VILLAGESOIL REMOVAL
SALT LAKE COUNTY, UT
KENNECOTT LANDCOMPANY
1167 A-11Date
Project
Scale
Sheet
1 " = 100 '
05-OCT-2016
0 50 100
SCALE IN FEET
OLD BINGHAM HWY
MOUN
TA
I
N
V
I
E
W
C
O
R
RID
O
R
11800 SOUTH
BA
C
C
H
U
S

H
W
Y
!
SITE LOCATION
BASTIAN DITCHDRAINAGE SITE FIELDOBSERVATIONS
SOIL REMOVAL AREA
SOIL WITH COCs LEFT IN PLACE
FOUND HISTORICAL DITCH
"\PHOTOGRAPH LOCATION
Ap
p
e
n
d
i
x

B

20201466.001A/SLC23R156681_ FINAL July 31, 2023
© 2023 Kleinfelder www.kleinfelder.com

849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
APPENDIX B
STANDARD OPERATING PROCEDURES
___________________________________________________________________________________

20201466.001A/SLC23R156681 B-1 of B-4 July 31, 2023
© 2023 Kleinfelder www.kleinfelder.com

849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
KLEINFELDER, INC.
STANDARD OPERATING PROCEDURES
___________________________________________________________________________________

EQUIPMENT DECONTAMINATION

Decontamination procedures will be used to prevent cross-contamination of samples. Decontamination
procedures will be established for each site based on the contaminants of concern to be sampled and
the degree of hazard associated with the site. Decontamination procedures will be reviewed and
approved by the Site Health and Safety Manager. The following procedure contains standard
decontamination protocols, suitable for most sites.

All non-disposable sampling equipment will be decontaminated prior to use and between samples as
follows:

• Remove Gross Contaminants – Equipment will be scrubbed using a water/detergent solution
and stiff brush until visible contaminants are removed. The water will be changed as necessary,
daily at a minimum.
• Wash with Alconox soap or similar detergent – An Alconox wash will be prepared as indicated
on the product labeling, typically mixing 1 to 1.5 tablespoons of Alconox per gallon of water. The
water will be changed as necessary, daily at a minimum.
• Water Rinse – Equipment will be rinsed with clear potable water. The water will be changed as
necessary, daily at a minimum.
• Deionized Water Rinse – Deionized water will be used as a final rinse for all equipment. The
water may be poured or sprayed, or the equipment submerged.
• Gloves – Sampling personnel will change into a new pair of chemical-resistant gloves between
samples and discard the previous pair.

The backhoe bucket will be decontaminated prior to use using a high-pressure washer. Decontamination
water will be dispersed on the ground surface and allowed to infiltrate near the source. Between
trench/sample locations, the backhoe bucket will be shaken and/or swept to remove loose dirt.

SAMPLE COLLECTION

Sample containers, preservation techniques, and holding times will be consistent with EPA
SW-846 guidelines. Soil samples to be analyzed for metals will be placed in plastic Ziplock bags. No
preservation or sample cooling is necessary for lead and arsenic analysis and the holding time is
six months. Sample intervals will be selected based on the project sampling plan.

Soil samples will be collected using disposable plastic or decontaminated hand tools. These tools may
include one or more of the following:

• Disposable plastic spoon, trowel, or cup,
• Stainless steel spoon, trowel, or cup, and/or
• Clean, disposable gloves (vinyl, latex, nitrile).

20201466.001A/SLC23R156681 B-2 of B-4 July 31, 2023
© 2023 Kleinfelder www.kleinfelder.com

849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
Only disposable plastic or decontaminated stainless-steel tools will be used to sample the material.
Reusable sampling tools will be decontaminated prior to use following the procedures described in the
“Equipment Decontamination” SOP.

Grab Samples

A soil sample will be collected at the selected depths with a spoon, trowel, or chemical-resistant gloves.
The material will be screened with the appropriate direct reading instrument, such as a PID or XRF, and
the reading will be recorded on the log form or in the field notebook. The portion of the sample collected
for chemical analysis will be transferred immediately into the appropriate sample container using
decontaminated equipment, clean disposable spoons or equipment, or by hand wearing new disposable
chemical-resistant gloves. Avoid gravels and rock fragments when filling soil sample containers. If the
sample is to be analyzed for volatile organics, the container will be completely filled with soil to
minimize headspace. The container will be labeled appropriately and immediately stored in an iced
cooler to maintain a temperature of 4° Celsius (if cooling is required for the analytical method).

Composite Soil Samples

Composite samples will be prepared by placing equal amounts of soil in a stainless-steel bowl or clean
plastic bag using a stainless-steel spoon or by hand wearing new chemical-resistant gloves. The composite
sample will be comprised of a minimum of five aliquots. The sample will be homogenized with a
stainless-steel spoon or gloved hand. The homogenized soil will be packaged in a laboratory-supplied
sample container, labeled appropriately, and placed in an iced cooler to maintain a temperature of
4° Celsius, if appropriate for the analytical method.

Enough soil will be collected for each sample to allow for additional laboratory analysis of lead and
arsenic if necessary. The samples will be held at the laboratory for 30 days after analysis to
accommodate possible additional analysis.

Soil sample material will be homogenized prior to analysis. The sample will be placed in a new,
re-sealable plastic bag. Large debris and rocks will be removed, and the sample will be homogenized by
kneading the soil within the bag. Clay soils, if encountered, will be thoroughly mixed to the extent
practicable.

Sample Identification and Labeling

To prevent misidentification of samples, each sample container will be labeled with indelible ink. The
following information will be recorded on the sample container:

• Project name or number,
• Sample identification number,
• Sample depth, and
• Date and time of collection.

Samples will be transported in laboratory-supplied coolers and stored on ice to maintain a temperature
between 2 and 6 degrees Centigrade, if sample cooling is required for the analytical method.
DOCUMENTATION AND SAMPLE HANDLING

20201466.001A/SLC23R156681 B-3 of B-4 July 31, 2023
© 2023 Kleinfelder www.kleinfelder.com

849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336

Field Records

Field activities will be recorded on a Daily Field Report (DFR) form or in a field logbook by on-site
personnel during all sampling activities. All notes/comments and data generated during the project will be
recorded on the DFR or logbook. The general information recorded for each day’s sampling event
includes:

• Date,
• Name of overall sampling event and project number,
• Sampling personnel,
• Climatic conditions,
• Field equipment and subcontractor personnel,
• Daily operations and observations, and
• Any deviation from the sampling protocol will be formally noted along with the names of visiting
personnel and any unusual circumstances pertinent to the sampling effort.

Sample Control Log

For each sample collected, the following will be recorded in a sample control log or DFR:

• Sample identification number,
• Location with measurements,
• Sample time,
• Sample type (grab, composite, etc.), and
• Field observations Map or diagram.

Boring and Trench Logs

Subsurface conditions encountered will be described in the boring or trench log using the unified soil
classification system. The logs will include the following, as applicable:

• GPS Coordinate,
• Color/discoloration,
• Sample location/depth,
• Drawing of the trench dimensions and observations, and
• Any other observations pertinent to the sampling effort.

20201466.001A/SLC23R156681 B-4 of B-4 July 31, 2023
© 2023 Kleinfelder www.kleinfelder.com

849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
Photographs

Photographs may be taken of the trenches and other investigation features as deemed appropriate to
document the field activities. A photograph log will be maintained on the DFR. The log will contain the
following information:

• Photograph identification number,
• Identification of site, and
• Date of photograph.

Chain-of-Custody

Sample chain-of-custody will be maintained for all samples collected. A chain-of-custody record will be
filled out and will accompany every set of samples in order to establish the documentation necessary to
trace sample possession from the time of collection. Samples will remain in the possession of the
sampler at all times, or in a locked facility until delivery to the analytical laboratory.
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20201466.001A/SLC23R156681_ FINAL July 31, 2023
© 2023 Kleinfelder www.kleinfelder.com

849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
APPENDIX C
TRANS-JORDAN LANDFILL DISPOSAL SUMMARY AND MONITORING WELL CLOSURE RECORDS
___________________________________________________________________________________

Date Time Tran Num Net Tons
12/20/2021 2:10 PM 3599167 13.34
12/20/2021 2:47 PM 3599199 13.26
12/20/2021 3:13 PM 3599220 13.04
12/20/2021 3:37 PM 3599249 12.31
12/21/2021 8:40 AM 3599365 15.1
12/21/2021 9:15 AM 3599383 15.51
12/21/2021 9:44 AM 3599405 15.61
12/21/2021 10:14 AM 3599435 15.17
12/21/2021 10:48 AM 3599464 15.55
12/21/2021 11:18 AM 3599490 16.7
12/21/2021 1:14 PM 3599580 17.59
12/21/2021 1:42 PM 3599608 16.91
12/21/2021 2:14 PM 3599637 16.52
12/21/2021 3:33 PM 3599719 17.43
12/22/2021 9:11 AM 3599821 14.91
12/22/2021 9:38 AM 3599838 16.42
12/22/2021 10:03 AM 3599855 16.89
12/22/2021 10:35 AM 3599886 17.94
12/22/2021 10:59 AM 3599902 17.25
12/22/2021 12:52 PM 3599999 14.76
12/22/2021 1:17 PM 3600028 16.2
12/22/2021 1:43 PM 3600049 16.21
12/22/2021 2:11 PM 3600068 16.83
12/22/2021 2:39 PM 3600098 17.14
12/22/2021 3:28 PM 3600133 17.37
12/28/2021 11:23 AM 3601778 19.32
12/28/2021 12:36 PM 3601839 18.55
12/28/2021 1:12 PM 3601869 17.95
12/28/2021 1:53 PM 3601911 19.44
12/28/2021 2:27 PM 3601940 18.04
12/28/2021 3:00 PM 3601971 18.7
12/28/2021 3:29 PM 3601995 18.12
12/28/2021 4:08 PM 3602021 18.83
12/30/2021 9:10 AM 3602697 17.88
12/30/2021 9:48 AM 3602713 17.98
12/30/2021 10:34 AM 3602756 17.46
12/30/2021 11:16 AM 3602809 18.87
01/03/2022 2:52 PM 3603839 15.01
01/03/2022 3:33 PM 3603885 15.61
01/03/2022 4:11 PM 3603923 16.37
01/04/2022 9:21 AM 3604049 17.01
01/04/2022 10:04 AM 3604080 18.18
01/04/2022 1:41 PM 3604243 16.9
01/04/2022 2:11 PM 3604270 15.43
01/04/2022 2:48 PM 3604298 14.84
01/04/2022 3:29 PM 3604340 16.13
01/05/2022 9:27 AM 3604474 16.89
01/05/2022 10:07 AM 3604500 16.56
01/05/2022 12:50 PM 3604635 16.46
01/05/2022 1:19 PM 3604656 16.83
01/05/2022 1:47 PM 3604674 17.72
01/05/2022 2:21 PM 3604709 15.19
Soil Disposal Summary
to Trans Jordan Landfill from Lark Monofill
1 of 2
01/05/2022 3:03 PM 3604748 15.6
01/06/2022 10:04 AM 3604923 17.12
01/13/2022 10:23 AM 3608153 17.29
01/13/2022 11:06 AM 3608183 17.51
01/13/2022 1:22 PM 3608283 16.92
01/13/2022 1:58 PM 3608319 17.75
01/13/2022 2:33 PM 3608356 18.2
01/13/2022 3:10 PM 3608390 17.92
01/13/2022 3:57 PM 3608431 16.46
01/14/2022 10:07 AM 3608597 16.69
01/14/2022 11:52 AM 3608701 17.28
01/14/2022 12:35 PM 3608735 16.72
01/14/2022 1:29 PM 3608780 19.3
01/14/2022 2:11 PM 3608826 19.03
01/14/2022 3:14 PM 3608882 18.06
01/17/2022 10:33 AM 3609759 15.34
01/17/2022 11:09 AM 3609811 18.43
01/17/2022 12:50 PM 3609922 18.31
01/17/2022 1:27 PM 3609967 18.42
01/17/2022 2:03 PM 3610013 17.49
01/17/2022 2:34 PM 3610047 17.42
01/17/2022 3:10 PM 3610089 16.6
01/17/2022 3:50 PM 3610146 17.81
01/18/2022 9:14 AM 3610310 16.98
01/18/2022 9:49 AM 3610334 17.05
01/18/2022 10:46 AM 3610396 18.38
01/18/2022 11:23 AM 3610428 19.23
01/18/2022 12:01 PM 3610471 17.23
01/18/2022 12:49 PM 3610511 18
01/18/2022 1:23 PM 3610539 18.47
01/18/2022 1:57 PM 3610573 16.63
01/18/2022 2:41 PM 3610625 18.66
01/19/2022 9:14 AM 3610802 18.77
02/28/2022 9:57 AM 3627381 16.45
02/28/2022 10:32 AM 3627397 17.64
02/28/2022 11:00 AM 3627431 18.48
02/28/2022 12:17 PM 3627512 16.8
02/28/2022 12:46 PM 3627535 16.86
02/28/2022 1:15 PM 3627571 18.19
02/28/2022 1:43 PM 3627595 17.01
02/28/2022 2:11 PM 3627623 16.77
02/28/2022 3:01 PM 3627689 18.66
02/28/2022 3:29 PM 3627716 19.72
03/01/2022 8:46 AM 3627893 19.09
03/01/2022 9:28 AM 3627911 18.67
03/01/2022 10:41 AM 3627964 20.88
03/01/2022 11:14 AM 3627998 15.95
03/12/2022 9:17 AM 3632876 1.67
03/22/2022 1:14 PM 3638395 13.21
03/22/2022 1:37 PM 3638411 15.4
03/22/2022 1:57 PM 3638433 14.89
03/22/2022 2:21 PM 3638465 19.31
03/22/2022 2:43 PM 3638498 16.6
1776
1420
Total Tons
Estimated Volume (1 ton = .80 Cubic Yards)
2 of 2
Monitoring Wells MW-1, located in the west
bound lanes of 11800 South Street and the
replacement water supply well located south
of 11800 South were not abandoned.
Stormdrain Culvert
MW-1
Replacement Water
Supply Well
Monitoring well MW-1 lies in the west bound lanes of
11800 S street pavement, and the replacement water
supply well is south of 11800 S. Neither of these wells
were abandoned by Kleinfelder.
KENNECOTT Nested Wells
BSG-1153 A, B, C
LARK
LARK
LARK
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20201466.001A/SLC23R156681_ FINAL July 31, 2023
© 2023 Kleinfelder www.kleinfelder.com

849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p | 801.261.3336
APPENDIX D
POST-REMOVAL CLOSURE SAMPLE INFORMATION SHEETS
___________________________________________________________________________________

· West Lark Post-Removal Sample Info Sheets – Ground and Sidewall Samples.
o Bastian Ditch Excavation (DG, DS), G-10 Excavation, samples R-1 thru R-4.
· East Lark Post-Removal Sample Info Sheets – Ground and Sidewall Samples.
o Fence line excavation (FG,FS), Excavations KT-8, C3, C7, and G26.
· Impacted Stockpile Removal Footprint Post-Removal Sample Info Sheets.
o ESG 1 thru 23, H5x, H11x, and H13x.

WEST LARK POST-REMOVAL
GROUND AND SIDEWALL SAMPLES
(Excavations- Bastian Ditch (DG, DS), G10, R-1 thru 4 )
SAMPLE INFORMATION SHEETS
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-1
Date/Time:September 22, 2021 10:40 AM
Location:Bastian Ditch Channel
Coordinates:40.537325, -112.066597
Represents:Post Removal Ground Surface 0-6 inches below ground
surface Samples collected over 205-ft of distance.
Configuration:12 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation Sampling.
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_87 Page 1 of 7 Pages
Kleinfelder Representative Signature  
5/10/2023 12:53:22 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-2
Date/Time:September 22, 2021 10:50 AM
Location:Bastian Ditch Channel
Coordinates:40.537229, -112.066356
Represents:Post Removal Ground Surface 0-6 inches below ground
surface Sample collected over 230-ft of distance.
Configuration:8 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation Sampling.
Notes:
Photos
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Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-4
Date/Time:January 07, 2022 02:00 PM
Location:Bastian Ditch Channel
Coordinates:40.544880, -112.063437
Represents:Post Removal Ground Surface 0-6 inches below ground
surface This section represents 220 ft of the Bastian Ditch.
Configuration:8 -point composite sample with subsamples spaced 0 feet
apart
Sample Purpose:Stockpile Characterization
Notes:This sample represents approx 220 ft.
Photos
DG-4 Looking South DG-4 Looking North
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_211 Page 1 of 3 Pages
Kleinfelder Representative Signature  
5/10/2023 12:55:29 PM
Confirmation Sample
50 feet
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-5
Date/Time:January 11, 2022 09:30 AM
Location:Bastian Ditch Channel
Coordinates:40.540767, -112.064406
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:10 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Sample aliquots collected avoiding fill used to bridge east
and west sides of the Bastian Ditch to facilitate stockpile
removal to Trans-Jordan landfill.
Photos
Facing southwest.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_187 Page 1 of 9 Pages
Kleinfelder Representative Signature  
5/10/2023 12:56:29 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-6
Date/Time:January 11, 2022 09:55 PM
Location:Bastian Ditch Channel
Coordinates:40.541306, -112.063875
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:12 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north.
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-7
Date/Time:January 11, 2022 01:18 PM
Location:Bastian Ditch Channel
Coordinates:40.541887, -112.063688
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:11 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north.
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-8
Date/Time:January 12, 2022 09:00 AM
Location:Bastian Ditch Channel
Coordinates:40.542573, -112.063501
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:10 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_190 Page 1 of 11 Pages
Kleinfelder Representative Signature  
5/10/2023 12:57:23 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-9
Date/Time:January 12, 2022 10:02 AM
Location:Bastian Ditch Channel
Coordinates:40.543249, -112.063518
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:11 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north.
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-9x
Date/Time:April 06, 2022 10:15 AM
Location:Bastian Ditch Channel
Coordinates:40.543245, -112.063630
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south Facing north
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_322 Page 2 of 8 Pages5/10/2023 1:01:14 PM
The DS-9W west sidewall required additional over-excavation based on post-removal
sampling. This represents the ground surface beneath the additional lateral excavation.
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-10
Date/Time:January 12, 2022 10:20 AM
Location:Bastian Ditch Channel
Coordinates:40.543869, -112.063656
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:10 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north.Facing south.
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-10x
Date/Time:April 06, 2022 10:20 AM
Location:Bastian Ditch Channel
Coordinates:40.543883, -112.063817
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:3 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south Facing north
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_322 Page 4 of 8 Pages5/10/2023 1:01:14 PM
The DS-10W west sidewall required additional over-excavation based on post-removal
sampling. This represents the ground surface beneath the additional lateral excavation.
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-11
Date/Time:January 12, 2022 10:45 AM
Location:Bastian Ditch Channel
Coordinates:40.544446, -112.063444
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:4 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north.Facing south.
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-12
Date/Time:January 12, 2022 01:40 PM
Location:Bastian Ditch Channel
Coordinates:40.540109, -112.064802
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:13 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_193 Page 3 of 17 Pages5/10/2023 12:57:11 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-13
Date/Time:January 12, 2022 01:55 PM
Location:Bastian Ditch Channel
Coordinates:40.539501, -112.064927
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:10 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing east.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_193 Page 4 of 17 Pages5/10/2023 12:57:11 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-14
Date/Time:January 12, 2022 02:30 PM
Location:Bastian Ditch Channel
Coordinates:40.538983, -112.065506
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:7 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-15
Date/Time:January 12, 2022 03:00 PM
Location:Bastian Ditch Channel
Coordinates:40.538315, -112.065735
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:6 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facng north.Facing south.
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t_id_193 Page 10 of 17 Pages5/10/2023 12:57:11 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-16
Date/Time:January 12, 2022 03:20 PM
Location:Bastian Ditch Channel
Coordinates:40.537717, -112.066081
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:7 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facng north.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_193 Page 13 of 17 Pages5/10/2023 12:57:11 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-17
Date/Time:January 13, 2022 09:30 AM
Location:Bastian Ditch Channel
Coordinates:40.538948, -112.064366
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:Sample represents 250 ft.
Photos
DG-17 Looking South DG-17 Looking North
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Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-18
Date/Time:January 13, 2022 09:45 AM
Location:Bastian Ditch Channel
Coordinates:40.538379, -112.063867
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:10 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
DG-18 Facing South
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Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-19
Date/Time:January 13, 2022 10:15 AM
Location:Bastian Ditch Channel
Coordinates:40.537818, -112.063343
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:10 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:This sample represents approx 250 ft.
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_214 Page 16 of 24 Pages5/10/2023 12:58:21 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-20
Date/Time:January 13, 2022 10:30 AM
Location:Bastian Ditch Channel
Coordinates:40.537336, -112.063033
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:4 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north
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t_id_214 Page 13 of 24 Pages5/10/2023 12:58:21 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-21
Date/Time:March 03, 2022 11:20 AM
Location:Bastian Ditch Channel
Coordinates:40.537115, -112.066600
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:4 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation
Notes:Excavated area crosses southern E-W dirt road.
Photos
Faing north.Facing south.
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t_id_286 Page 3 of 7 Pages5/10/2023 12:59:59 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-22
Date/Time:March 03, 2022 02:45 PM
Location:Bastian Ditch Channel
Coordinates:40.537137, -112.066181
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:4 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south Facing north
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_286 Page 6 of 7 Pages5/10/2023 12:59:59 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-23
Date/Time:March 15, 2022 10:10 AM
Location:Bastian Ditch Channel
Coordinates:40.537080, -112.062668
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:7 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_289 Page 1 of 7 Pages
Kleinfelder Representative Signature  
5/10/2023 1:00:20 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-24
Date/Time:March 25, 2022 02:00 PM
Location:Bastian Ditch Channel
Coordinates:40.550044, -112.062676
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:6 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_307 Page 14 of 14 Pages5/10/2023 1:00:42 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-25
Date/Time:April 29, 2022 09:15 AM
Location:Bastian Ditch Channel
Coordinates:40.537743, -112.065919
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:6 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing east Facing south
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_328 Page 1 of 8 Pages
Kleinfelder Representative Signature  
5/10/2023 3:12:28 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-26
Date/Time:April 29, 2022 09:45 AM
Location:Bastian Ditch Channel
Coordinates:40.537394, -112.065896
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:15 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_328 Page 2 of 8 Pages5/10/2023 3:12:28 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-27
Date/Time:April 29, 2022 12:00 PM
Location:Bastian Ditch Channel
Coordinates:40.537987, -112.065534
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:16 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_328 Page 8 of 8 Pages5/10/2023 3:12:28 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-28
Date/Time:April 29, 2022 12:45 PM
Location:Bastian Ditch Channel
Coordinates:40.537861, -112.065246
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:15 -point composite sample with subsamples spaced 25 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_328 Page 4 of 8 Pages5/10/2023 3:12:28 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-29
Date/Time:April 29, 2022 01:00 PM
Location:Bastian Ditch Channel
Coordinates:40.537433, -112.065473
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:11 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_328 Page 5 of 8 Pages5/10/2023 3:12:28 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-30
Date/Time:April 29, 2022 01:30 PM
Location:Bastian Ditch Channel
Coordinates:40.537838, -112.064403
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:13 -point composite sample with subsamples spaced 0 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_328 Page 6 of 8 Pages5/10/2023 3:12:28 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-31
Date/Time:April 29, 2022 02:00 PM
Location:Bastian Ditch Channel
Coordinates:40.537965, -112.064511
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:10 -point composite sample with subsamples spaced 25 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_328 Page 7 of 8 Pages5/10/2023 3:12:28 PM
Sample Information Sheet
by  Josh overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-32
Date/Time:June 20, 2022 12:45 PM
Location:Bastian Ditch Channel
Coordinates:40.544107, -112.063152
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:15 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Characterization
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_359 Page 6 of 9 Pages5/10/2023 1:03:26 PM
Confirmation
Sample Information Sheet
by  Josh overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-33
Date/Time:June 20, 2022 12:50 PM
Location:Bastian Ditch Channel
Coordinates:40.544078, -112.062990
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:15 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Characterization
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_359 Page 7 of 9 Pages5/10/2023 1:03:26 PM
Confirmation
Sample Information Sheet
by  Josh overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-34
Date/Time:June 20, 2022 02:00 PM
Location:Bastian Ditch Channel
Coordinates:40.544776, -112.063156
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:15 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Characterization
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_359 Page 8 of 9 Pages5/10/2023 1:03:26 PM
Confirmation
Sample Information Sheet
by  Josh overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-35
Date/Time:June 20, 2022 02:30 PM
Location:Bastian Ditch Channel
Coordinates:40.544764, -112.062887
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:15 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Characterization
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_359 Page 9 of 9 Pages5/10/2023 1:03:26 PM
Confirmation
Sample Information Sheet
by  Bill Bragdon
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-36
Date/Time:June 21, 2022 10:00 AM
Location:Bastian Ditch Channel
Coordinates:40.544750, -112.062650
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:6 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Conformation Samples
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_365 Page 1 of 5 Pages
Kleinfelder Representative Signature  
5/10/2023 1:03:55 PM
Confirmation
Sample Information Sheet
by  Bill Bragdon
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DG-37
Date/Time:June 21, 2022 11:30 AM
Location:Bastian Ditch Channel
Coordinates:40.544197, -112.062602
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:8 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Conformation Samples
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_365 Page 2 of 5 Pages5/10/2023 1:03:55 PM
Confirmation
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-1
Date/Time:September 22, 2021 09:40 AM
Location:Bastian Ditch Channel
Coordinates:40.537253, -112.066718
Represents:Post Removal Sidewall 3-4 feet below ground surface 205-ft
long. At the interval with the highest impacts prior to soil
removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation Sampling.
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_87 Page 3 of 7 Pages5/10/2023 12:53:22 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-2
Date/Time:September 22, 2021 10:10 AM
Location:Bastian Ditch Channel
Coordinates:40.537278, -112.066310
Represents:Post Removal Sidewall 3-4 feet below ground surface 226-ft
long. At the interval with the highest impacts prior to soil
removal
Configuration:5 -point composite sample with subsamples spaced 49 feet
apart
Sample Purpose:Confirmation Sampling.
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_87 Page 4 of 7 Pages5/10/2023 12:53:22 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-3
Date/Time:September 22, 2021 09:20 AM
Location:Bastian Ditch Channel
Coordinates:40.537293, -112.066373
Represents:Post Removal Sidewall 3-4 feet below ground surface 250-ft.
Long. At the interval with the highest impacts prior to soil
removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation Sampling.
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_87 Page 5 of 7 Pages5/10/2023 12:53:22 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-4W
Date/Time:January 07, 2022 02:35 PM
Location:Bastian Ditch Channel
Coordinates:40.544943, -112.063438
Represents:Post Removal Sidewall 2-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:4 -point composite sample with subsamples spaced 25 feet
apart
Sample Purpose:Stockpile Characterization
Notes:This section represents approx 220 ft.
Photos
DS-4 W Looking South DS-4 W Looking North
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_211 Page 3 of 3 Pages5/10/2023 12:55:29 PM
Confirmation
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-4E
Date/Time:January 07, 2022 02:50 PM
Location:Bastian Ditch Channel
Coordinates:40.544938, -112.063403
Represents:Post Removal Sidewall 2-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:4 -point composite sample with subsamples spaced 25 feet
apart
Sample Purpose:Stockpile Characterization
Notes:This section represents approx 220 ft.
Photos
DS-4 E Looking South DS-4 E Looking North
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_211 Page 2 of 3 Pages5/10/2023 12:55:29 PM
Confirmation
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-5W
Date/Time:January 11, 2022 09:35 AM
Location:Bastian Ditch Channel
Coordinates:40.540811, -112.064586
Represents:Post Removal Sidewall 1-1.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing southwest.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_187 Page 2 of 9 Pages5/10/2023 12:56:29 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-5E
Date/Time:January 11, 2022 09:40 AM
Location:Bastian Ditch Channel
Coordinates:40.540689, -112.064478
Represents:Post Removal Sidewall 1.5-2 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing southwest.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_187 Page 3 of 9 Pages5/10/2023 12:56:29 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-6W
Date/Time:January 11, 2022 10:15 AM
Location:Bastian Ditch Channel
Coordinates:40.541257, -112.064003
Represents:Post Removal Sidewall 1-1.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_187 Page 5 of 9 Pages5/10/2023 12:56:29 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-6E
Date/Time:January 11, 2022 10:05 AM
Location:Bastian Ditch Channel
Coordinates:40.541243, -112.063947
Represents:Post Removal Sidewall 1-1.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing North
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_187 Page 6 of 9 Pages5/10/2023 12:56:29 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-7W
Date/Time:January 11, 2022 11:25 AM
Location:Bastian Ditch Channel
Coordinates:40.541935, -112.064040
Represents:Post Removal Sidewall 1-1.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_187 Page 8 of 9 Pages5/10/2023 12:56:29 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-7E
Date/Time:January 11, 2022 11:20 AM
Location:Bastian Ditch Channel
Coordinates:40.541852, -112.063514
Represents:Post Removal Sidewall 1-1.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_187 Page 9 of 9 Pages5/10/2023 12:56:29 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-8W
Date/Time:January 12, 2022 09:05 AM
Location:Bastian Ditch Channel
Coordinates:40.542542, -112.063666
Represents:Post Removal Sidewall 1-1.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_190 Page 2 of 11 Pages5/10/2023 12:57:23 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-8E
Date/Time:January 12, 2022 09:10 AM
Location:Bastian Ditch Channel
Coordinates:40.542482, -112.063535
Represents:Post Removal Sidewall 1-1.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_190 Page 3 of 11 Pages5/10/2023 12:57:23 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-9W
Date/Time:January 12, 2022 10:05 AM
Location:Bastian Ditch Channel
Coordinates:40.543207, -112.063631
Represents:Post Removal Sidewall 1-1.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_190 Page 6 of 11 Pages5/10/2023 12:57:23 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-9Wx
Date/Time:April 06, 2022 10:10 AM
Location:Bastian Ditch Channel
Coordinates:40.543246, -112.063681
Represents:Post Removal Sidewall 2-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north Facing south
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_322 Page 1 of 8 Pages
Kleinfelder Representative Signature  
5/10/2023 1:01:14 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-9E
Date/Time:January 12, 2022 10:10 AM
Location:Bastian Ditch Channel
Coordinates:40.543161, -112.063497
Represents:Post Removal Sidewall 1-1.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_190 Page 5 of 11 Pages5/10/2023 12:57:23 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-10W
Date/Time:January 12, 2022 10:25 AM
Location:Bastian Ditch Channel
Coordinates:40.543797, -112.063743
Represents:Post Removal Sidewall 1-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
DS-10W Looking South DS-10W Looking North
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_241 Page 1 of 1 Pages
Kleinfelder Representative Signature  
5/10/2023 12:57:41 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-10Wx
Date/Time:April 06, 2022 10:25 AM
Location:Bastian Ditch Channel
Coordinates:40.543894, -112.063857
Represents:Post Removal Sidewall 2-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:4 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north Facing south
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_322 Page 3 of 8 Pages5/10/2023 1:01:14 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-10E
Date/Time:January 12, 2022 10:30 AM
Location:Bastian Ditch Channel
Coordinates:40.543774, -112.063730
Represents:Post Removal Sidewall 1-1.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_190 Page 7 of 11 Pages5/10/2023 12:57:23 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-11W
Date/Time:January 12, 2022 10:50 AM
Location:Bastian Ditch Channel
Coordinates:40.544361, -112.063465
Represents:Post Removal Sidewall 1-1.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:4 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_190 Page 8 of 11 Pages5/10/2023 12:57:23 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-11E
Date/Time:January 12, 2022 10:55 AM
Location:Bastian Ditch Channel
Coordinates:40.544384, -112.063438
Represents:Post Removal Sidewall 1-1.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:4 -point composite sample with subsamples spaced 200 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing north.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_190 Page 9 of 11 Pages5/10/2023 12:57:23 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-12W
Date/Time:January 12, 2022 01:50 PM
Location:Bastian Ditch Channel
Coordinates:40.540162, -112.064958
Represents:Post Removal Sidewall 1.5-2.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_193 Page 1 of 17 Pages
Kleinfelder Representative Signature  
5/10/2023 12:57:11 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-12E
Date/Time:January 12, 2022 01:45 PM
Location:Bastian Ditch Channel
Coordinates:40.540160, -112.064794
Represents:Post Removal Sidewall 1.5-2.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_193 Page 2 of 17 Pages5/10/2023 12:57:11 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-13W
Date/Time:January 12, 2022 02:05 AM
Location:Bastian Ditch Channel
Coordinates:40.539552, -112.064910
Represents:Post Removal Sidewall 1.5-2.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing east.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_193 Page 5 of 17 Pages5/10/2023 12:57:11 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-13E
Date/Time:January 12, 2022 02:00 PM
Location:Bastian Ditch Channel
Coordinates:40.539510, -112.064817
Represents:Post Removal Sidewall 1.5-2.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing east.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_193 Page 6 of 17 Pages5/10/2023 12:57:11 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-14W
Date/Time:January 12, 2022 02:35 PM
Location:Bastian Ditch Channel
Coordinates:40.539052, -112.065494
Represents:Post Removal Sidewall 1.5-2.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_193 Page 8 of 17 Pages5/10/2023 12:57:11 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-14Wx
Date/Time:April 06, 2022 09:10 AM
Location:Bastian Ditch Channel
Coordinates:40.539039, -112.065503
Represents:Post Removal Sidewall 2-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:This sample represents approximately 250 ft.
Photos
DS-14WX Looking south DS-14WX Looking North
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_322 Page 5 of 8 Pages5/10/2023 1:01:14 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-14E
Date/Time:January 12, 2022 02:40 AM
Location:Bastian Ditch Channel
Coordinates:40.539017, -112.065424
Represents:Post Removal Sidewall 1-2 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_193 Page 9 of 17 Pages5/10/2023 12:57:11 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-15W
Date/Time:January 12, 2022 03:10 PM
Location:Bastian Ditch Channel
Coordinates:40.538394, -112.065748
Represents:Post Removal Sidewall 1.5-2.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_193 Page 11 of 17 Pages5/10/2023 12:57:11 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-15E
Date/Time:January 12, 2022 03:05 AM
Location:Bastian Ditch Channel
Coordinates:40.538413, -112.065690
Represents:Post Removal Sidewall 1.5-2.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_193 Page 12 of 17 Pages5/10/2023 12:57:11 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-16W
Date/Time:January 12, 2022 03:30 PM
Location:Bastian Ditch Channel
Coordinates:40.537767, -112.066034
Represents:Post Removal Sidewall 1-2 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facng north.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_193 Page 14 of 17 Pages5/10/2023 12:57:11 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-16E
Date/Time:January 12, 2022 03:25 PM
Location:Bastian Ditch Channel
Coordinates:40.537734, -112.065971
Represents:Post Removal Sidewall 1-2 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facng north.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_193 Page 15 of 17 Pages5/10/2023 12:57:11 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-17W
Date/Time:January 13, 2022 09:35 AM
Location:Bastian Ditch Channel
Coordinates:40.538970, -112.064476
Represents:Post Removal Sidewall 3-5 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:This sample represents approx 250 ft.
Photos
DS-16W Looking North DS-17W Looking South
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_214 Page 23 of 24 Pages5/10/2023 12:58:21 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-17E
Date/Time:January 13, 2022 09:40 AM
Location:Bastian Ditch Channel
Coordinates:40.539031, -112.064411
Represents:Post Removal Sidewall 3-5 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:This sample represents approx 250 ft.
Photos
DS-17E Looking South DS-17E Looking North
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_214 Page 24 of 24 Pages5/10/2023 12:58:21 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-18W
Date/Time:January 13, 2022 09:55 AM
Location:Bastian Ditch Channel
Coordinates:40.538372, -112.063878
Represents:Post Removal Sidewall 4-6 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:This sample represents approx 250 ft.
Photos
DS-18W Looking South DS-18W
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_214 Page 21 of 24 Pages5/10/2023 12:58:21 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-18E
Date/Time:January 13, 2022 10:05 AM
Location:Bastian Ditch Channel
Coordinates:40.538454, -112.063902
Represents:Post Removal Sidewall 4-6 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:This sample represents approx 250 ft.
Photos
DS-18E Facing North DS-18E Looking South
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_214 Page 20 of 24 Pages5/10/2023 12:58:21 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-19W
Date/Time:January 13, 2022 10:10 AM
Location:Bastian Ditch Channel
Coordinates:40.537847, -112.063454
Represents:Post Removal Sidewall 4-6 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_214 Page 17 of 24 Pages5/10/2023 12:58:21 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-19E
Date/Time:January 13, 2022 10:20 AM
Location:Bastian Ditch Channel
Coordinates:40.537869, -112.063398
Represents:Post Removal Sidewall 3-5 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:This sample represents approx 250 ft.
Photos
DS-19E Facing North DS-19E Looking South
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_214 Page 18 of 24 Pages5/10/2023 12:58:21 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-20W
Date/Time:January 13, 2022 02:20 PM
Location:Bastian Ditch Channel
Coordinates:40.537375, -112.063094
Represents:Post Removal Sidewall 3-5 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:4 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north Facing south
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_214 Page 14 of 24 Pages5/10/2023 12:58:21 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-20E
Date/Time:January 13, 2022 02:20 PM
Location:Bastian Ditch Channel
Coordinates:40.537401, -112.063039
Represents:Post Removal Sidewall 4.5-6.6 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:4 -point composite sample with subsamples spaced 5 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_214 Page 15 of 24 Pages5/10/2023 12:58:21 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-21
Date/Time:March 03, 2022 11:15 AM
Location:Bastian Ditch Channel
Coordinates:40.537147, -112.066586
Represents:Post Removal Sidewall 3-5 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:4 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_286 Page 2 of 7 Pages5/10/2023 12:59:59 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-22
Date/Time:March 03, 2022 02:40 PM
Location:Bastian Ditch Channel
Coordinates:40.537120, -112.066183
Represents:Post Removal Sidewall 7-9 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:4 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south Facing north
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_286 Page 5 of 7 Pages5/10/2023 12:59:59 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-23
Date/Time:March 15, 2022 10:31 AM
Location:Bastian Ditch Channel
Coordinates:40.537090, -112.062812
Represents:Post Removal Sidewall 3-4 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:6 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north.Facing south.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_289 Page 7 of 7 Pages5/10/2023 1:00:20 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-24
Date/Time:March 25, 2022 02:05 PM
Location:Bastian Ditch Channel
Coordinates:40.550031, -112.062678
Represents:Post Removal Sidewall 2-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:4 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south.Facing east.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_307 Page 13 of 14 Pages5/10/2023 1:00:42 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-25
Date/Time:May 04, 2022 01:30 PM
Location:Bastian Ditch Channel
Coordinates:40.537812, -112.066899
Represents:Post Removal Sidewall 3-4 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:3 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
DS-25 Facing West DS-25 Facing East
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_334 Page 1 of 3 Pages
Kleinfelder Representative Signature  
5/10/2023 1:02:02 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-26
Date/Time:May 04, 2022 01:00 PM
Location:Bastian Ditch Channel
Coordinates:40.537710, -112.066193
Represents:Post Removal Sidewall 3-4 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:3 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
DS-26 Facing West DS-26 Facing East
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_334 Page 2 of 3 Pages5/10/2023 1:02:02 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-27
Date/Time:May 04, 2022 02:00 PM
Location:Bastian Ditch Channel
Coordinates:40.537425, -112.065851
Represents:Post Removal Sidewall 1-4 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
DS-27 Facing West DS-27 Facing East
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_334 Page 3 of 3 Pages5/10/2023 1:02:02 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-28
Date/Time:May 25, 2022 08:30 AM
Location:Bastian Ditch Channel
Coordinates:40.537492, -112.065642
Represents:Post Removal Sidewall 1.5-2 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_349 Page 1 of 1 Pages
Kleinfelder Representative Signature  
5/10/2023 1:03:07 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-29
Date/Time:May 05, 2022 10:00 AM
Location:Bastian Ditch Channel
Coordinates:40.537794, -112.064555
Represents:Post Removal Sidewall 1-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south Facing east
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_337 Page 1 of 2 Pages
Kleinfelder Representative Signature  
5/10/2023 1:02:23 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-30
Date/Time:May 23, 2022 10:00 AM
Location:Bastian Ditch Channel
Coordinates:40.537843, -112.064426
Represents:Post Removal Sidewall 1-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
DS-30 Looking East DS-30 Looking West
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_343 Page 1 of 2 Pages
Kleinfelder Representative Signature  
5/10/2023 1:02:40 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-31
Date/Time:May 23, 2022 10:15 AM
Location:Bastian Ditch Channel
Coordinates:40.537957, -112.064826
Represents:Post Removal Sidewall 1-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:4 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
DS-31 Looking East DS-31 Looking West
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_343 Page 2 of 2 Pages5/10/2023 1:02:40 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-32
Date/Time:May 05, 2022 10:30 AM
Location:Bastian Ditch Channel
Coordinates:40.538471, -112.065204
Represents:Post Removal Sidewall 1-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing east Facing west
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_337 Page 2 of 2 Pages5/10/2023 1:02:23 PM
Sample Information Sheet
by  Josh overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-33
Date/Time:June 20, 2022 08:50 AM
Location:Bastian Ditch Channel
Coordinates:40.545265, -112.062938
Represents:Post Removal Sidewall 1-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:4 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Characterization
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_359 Page 1 of 9 Pages
Kleinfelder Representative Signature  
5/10/2023 1:03:26 PM
Confirmation
Sample Information Sheet
by  Josh overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-34
Date/Time:June 20, 2022 08:55 AM
Location:Bastian Ditch Channel
Coordinates:40.545374, -112.063035
Represents:Post Removal Sidewall 1-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:2 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Characterization
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_359 Page 2 of 9 Pages5/10/2023 1:03:26 PM
Confirmation
Sample Information Sheet
by  Josh overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-35
Date/Time:June 20, 2022 10:45 AM
Location:Bastian Ditch Channel
Coordinates:40.545038, -112.062703
Represents:Post Removal Sidewall 1-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:2 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Characterization
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_359 Page 3 of 9 Pages5/10/2023 1:03:26 PM
Confirmation
Sample Information Sheet
by  Josh overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-36
Date/Time:June 20, 2022 10:50 AM
Location:Bastian Ditch Channel
Coordinates:40.544198, -112.062676
Represents:Post Removal Sidewall 1-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:4 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Characterization
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_359 Page 4 of 9 Pages5/10/2023 1:03:26 PM
Confirmation
Sample Information Sheet
by  Josh overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:DS-37
Date/Time:June 20, 2022 10:55 AM
Location:Bastian Ditch Channel
Coordinates:40.544075, -112.063045
Represents:Post Removal Sidewall 1-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:3 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Characterization
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_359 Page 5 of 9 Pages5/10/2023 1:03:26 PM
Confirmation
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:G10F
Date/Time:January 06, 2022 09:54 AM
Location:Bastian Ditch Channel
Coordinates:40.543839, -112.062955
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:4 -point composite sample with subsamples spaced 10 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
G10F LOOKING SOUTH G10F LOOKING NORTH
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_202 Page 7 of 8 Pages5/10/2023 12:54:48 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:G10S
Date/Time:January 06, 2022 01:15 PM
Location:Bastian Ditch Channel
Coordinates:40.543814, -112.062955
Represents:Post Removal Sidewall 3-4 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:4 -point composite sample with subsamples spaced 30 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
G10S LOOKING SOUTH G10S LOOKING NORTH
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Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:R-1
Date/Time:March 03, 2022 11:25 AM
Location:Bastian Ditch Channel
Coordinates:40.537085, -112.066625
Represents:Post Removal Sidewall 3-3.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:Single Point Grab Sample
Sample Purpose:Characterization
Notes:
Remaining impacts at site boundary (south E-W fence line)
continue off property.
Width: 10-feet
Depth 2.5 to 5-feet below ground surface
Photos
Facing south
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location with the highest impacts at the south property line.
Characterization of soil remaining at the southern property line after on-site Ditch removal.
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:R-2
Date/Time:March 03, 2022 02:50 PM
Location:Bastian Ditch Channel
Coordinates:40.537137, -112.066166
Represents:Post Removal Sidewall 5-5.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:Single Point Grab Sample
Sample Purpose:Characterization
Notes:
Impacts at southern E-W fence line.
Width: 10-feet
Depth 4-6 bgs
XRF results ~500 ppm lead.
Photos
Facing south Facing south
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location with the highest impacts at the south property line.
Characterization of soil remaining at the southern property line after on-site Ditch removal.
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:R-3
Date/Time:March 15, 2022 10:20 AM
Location:Bastian Ditch Channel
Coordinates:40.537076, -112.062685
Represents:Characterization Sample 3-4 feet below ground surface
Configuration:Single Point Grab Sample
Sample Purpose:Sample Collected As Property Line.
Notes:
Bastian Ditch continues south below 118th South. XRF
results of impacts at the fence/property line range between
400 to 3900 PPM Lead.
Ditch width is approximately 20’ wide at the fence/property
line.
Photos
Facing south-east.Facing south
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Characterization of soil remaining at the southern property line after on-site Ditch removal.
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:R-4
Date/Time:March 25, 2022 01:55 PM
Location:Bastian Ditch Channel
Coordinates:40.550239, -112.062609
Represents:Characterization Sample 1.5-1.7 feet below ground surface
Configuration:Single Point Grab Sample
Sample Purpose:Characterization
Notes:
Impacts approx. 15-ft wide, lead impacts approx. 2000-5000
ppm at 1.5-ft bgs.
Sample collected at property line.
Photos
Facing east.
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Characterization of soil remaining at the northern east property line after on-site Ditch removal.
EAST LARK POST-REMOVAL
GROUND AND SIDEWALL SAMPLES
(Excavations FG, FS, KT-8, C3, C7, G26)
SAMPLE INFORMATION SHEETS
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-1
Date/Time:June 16, 2021 04:25 PM
Location:East/northeast Fence Line
Coordinates:40.537068, -112.057899
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:11 -point composite sample with subsamples spaced 10 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
North facing photo at FG-1 excavation ground surface.South facing photo of FG-1 excavation ground surface.
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-2
Date/Time:June 16, 2021 03:00 AM
Location:East/northeast Fence Line
Coordinates:40.537751, -112.057952
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:10 -point composite sample with subsamples spaced 10 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
North facing photo of FG-2 excavation ground surface.South facing photo of FG-2 excavation ground surface.
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-3
Date/Time:July 13, 2021 10:00 AM
Location:East/northeast Fence Line
Coordinates:40.538282, -112.057904
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:11 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
North facing groung/sidewall Southeasternmost aliquot
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t_id_24 Page 1 of 2 Pages
Kleinfelder Representative Signature  
5/10/2023 12:44:50 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-4
Date/Time:July 15, 2021 08:00 AM
Location:East/northeast Fence Line
Coordinates:40.538958, -112.057924
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:6 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Delineation
Notes:
Photos
FG-4 looking north FG-4 looking south
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t_id_27 Page 1 of 2 Pages
Kleinfelder Representative Signature  
5/10/2023 12:46:13 PM
Confirmation
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-5
Date/Time:July 22, 2021 10:45 AM
Location:East/northeast Fence Line
Coordinates:40.539666, -112.057912
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:7 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_75 Page 1 of 4 Pages
Kleinfelder Representative Signature  
5/10/2023 12:46:36 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-6
Date/Time:July 22, 2021 01:25 PM
Location:East/northeast Fence Line
Coordinates:40.540308, -112.057890
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:9 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-7
Date/Time:August 05, 2021 08:32 AM
Location:East/northeast Fence Line
Coordinates:40.542582, -112.057908
Represents:Post Removal Ground Surface 0-6 inches below ground
surface Sample spans 240 linear ft
Configuration:7 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north Facing south
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t_id_33 Page 1 of 4 Pages
Kleinfelder Representative Signature  
5/10/2023 3:13:59 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-8
Date/Time:August 05, 2021 09:58 AM
Location:East/northeast Fence Line
Coordinates:40.543329, -112.057888
Represents:Post Removal Ground Surface 0-6 inches below ground
surface 240ft linear sample
Last 40ft of sample orients NW
Configuration:7 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north Facing southeast
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-9
Date/Time:August 06, 2021 08:15 AM
Location:East/northeast Fence Line
Coordinates:40.544720, -112.062640
Represents:Post Removal Ground Surface 0-6 inches below ground
surface 175 linear ft
Configuration:7 -point composite sample with subsamples spaced 30 feet
apart
Sample Purpose:Confirmation Sample
Notes:
Photos
Facing north Facing south
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t_id_39 Page 1 of 7 Pages
Kleinfelder Representative Signature  
5/10/2023 12:47:29 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-10
Date/Time:August 06, 2021 10:10 AM
Location:East/northeast Fence Line
Coordinates:40.54423, -120.06264
Represents:Post Removal Ground Surface 0-6 inches below ground
surface 250 linear ft
Configuration:9 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation Sample
Notes:
Photos
Facing west Facing east
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-11
Date/Time:August 06, 2021 10:15 AM
Location:East/northeast Fence Line
Coordinates:40.544204, -112.061722
Represents:Post Removal Ground Surface 0-6 inches below ground
surface 240 linear ft
Configuration:6 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation Sample
Notes:
Photos
Facing west Facing east
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t_id_39 Page 6 of 7 Pages5/10/2023 12:47:29 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-12
Date/Time:August 06, 2021 10:25 AM
Location:East/northeast Fence Line
Coordinates:40.544181, -112.060735
Represents:Post Removal Ground Surface 0-6 inches below ground
surface 240 linear ft
Configuration:6 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation Sample
Notes:
Photos
Facing east Facing west
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-13
Date/Time:August 27, 2021 09:50 AM
Location:East/northeast Fence Line
Coordinates:40.544218, -112.059911
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:6 -point composite sample with subsamples spaced 33 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_69 Page 1 of 9 Pages
Kleinfelder Representative Signature  
5/10/2023 3:13:28 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-14
Date/Time:August 27, 2021 10:30 AM
Location:East/northeast Fence Line
Coordinates:40.544217, -112.059205
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:6 -point composite sample with subsamples spaced 33 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-15
Date/Time:August 27, 2021 10:50 AM
Location:East/northeast Fence Line
Coordinates:40.544180, -112.058512
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:10 -point composite sample with subsamples spaced 33 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
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t_id_69 Page 9 of 9 Pages5/10/2023 3:13:28 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-16
Date/Time:August 27, 2021 12:45 PM
Location:East/northeast Fence Line
Coordinates:40.542037, -112.057939
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:6 -point composite sample with subsamples spaced 20 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
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t_id_69 Page 7 of 9 Pages5/10/2023 3:13:28 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-17
Date/Time:October 12, 2021 09:50 AM
Location:East/northeast Fence Line
Coordinates:40.540844, -112.057893
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:7 -point composite sample with subsamples spaced 62.5 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_93 Page 1 of 18 Pages
Kleinfelder Representative Signature  
5/10/2023 12:53:50 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FG-18
Date/Time:October 12, 2021 10:00 AM
Location:East/northeast Fence Line
Coordinates:40.541679, -112.057896
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:9 -point composite sample with subsamples spaced 49 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-1
Date/Time:June 16, 2021 02:40 PM
Location:East/northeast Fence Line
Coordinates:40.537123, -112.057904
Represents:Post Removal Sidewall 2-2.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
North facing photo of FS-2 excavation sidewall.South facing photo of FS-2 excavation sidewall.
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-2
Date/Time:June 16, 2021 03:25 PM
Location:East/northeast Fence Line
Coordinates:40.537669, -112.058003
Represents:Post Removal Sidewall 2-2.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
North facing photo of FS-2 excavated sidewall.South facing photo of FG-2 excavated sidewall.
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-3
Date/Time:July 13, 2021 12:55 PM
Location:East/northeast Fence Line
Coordinates:40.538368, -112.057979
Represents:Post Removal Sidewall 2-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:8 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
North facing photo of FS-3.South facing photo of FS-3.
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-4
Date/Time:July 15, 2021 08:10 AM
Location:East/northeast Fence Line
Coordinates:40.538915, -112.057962
Represents:Post Removal Sidewall 2-3 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:8 -point composite sample with subsamples spaced 25 feet
apart
Sample Purpose:Confirmation
Notes:Half of the aliquots collected in line with FG-4 transects
Photos
North facing FS-4 South facing FS-4
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-5
Date/Time:July 22, 2021 10:50 AM
Location:East/northeast Fence Line
Coordinates:40.539590, -112.057944
Represents:Post Removal Sidewall 3-3.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_75 Page 2 of 4 Pages5/10/2023 12:46:36 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-6
Date/Time:July 22, 2021 01:42 PM
Location:East/northeast Fence Line
Coordinates:40.540266, -112.057930
Represents:Post Removal Sidewall 3-3.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:6 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_75 Page 4 of 4 Pages5/10/2023 12:46:36 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-7
Date/Time:August 05, 2021 08:52 AM
Location:East/northeast Fence Line
Coordinates:40.542611, -112.058029
Represents:Post Removal Sidewall 2-4 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:6 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing south Facing north
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-8
Date/Time:August 05, 2021 10:29 AM
Location:East/northeast Fence Line
Coordinates:40.543279, -112.057903
Represents:Post Removal Sidewall 2-5 feet below ground surface Last
40ft of sample orients NW At the interval with the highest
impacts prior to soil removal
Configuration:6 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north Facing south
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_33 Page 4 of 4 Pages5/10/2023 3:13:59 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-10
Date/Time:August 06, 2021 08:40 AM
Location:East/northeast Fence Line
Coordinates:40.544067, -112.062547
Represents:Post Removal Sidewall 2-3 feet below ground surface 250
linear ft. Wider at west end At the interval with the highest
impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation Sample
Notes:
Photos
Facing west Facing east
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_39 Page 3 of 7 Pages5/10/2023 12:47:29 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-11
Date/Time:August 06, 2021 09:00 AM
Location:East/northeast Fence Line
Coordinates:40.544225, -112.061757
Represents:Post Removal Sidewall 1.5-2 feet below ground surface 240
linear ft At the interval with the highest impacts prior to soil
removal
Configuration:6 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation Sample
Notes:
Photos
Facing west Facing east
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_39 Page 4 of 7 Pages5/10/2023 12:47:29 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-12
Date/Time:August 06, 2021 10:20 AM
Location:East/northeast Fence Line
Coordinates:40.544212, -112.060906
Represents:Post Removal Sidewall 1-2 feet below ground surface 240
linear ft At the interval with the highest impacts prior to soil
removal
Configuration:6 -point composite sample with subsamples spaced 40 feet
apart
Sample Purpose:Confirmation Sample
Notes:
Photos
Facing west Facing east
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_39 Page 5 of 7 Pages5/10/2023 12:47:29 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-13
Date/Time:August 27, 2021 10:00 AM
Location:East/northeast Fence Line
Coordinates:40.544221, -112.059976
Represents:Post Removal Sidewall 2.5-3 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:6 -point composite sample with subsamples spaced 33 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_69 Page 2 of 9 Pages5/10/2023 3:13:28 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-14
Date/Time:August 27, 2021 10:40 AM
Location:East/northeast Fence Line
Coordinates:40.544207, -112.059273
Represents:Post Removal Sidewall 2.5-3 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:6 -point composite sample with subsamples spaced 33 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_69 Page 4 of 9 Pages5/10/2023 3:13:28 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-15
Date/Time:August 27, 2021 11:00 AM
Location:East/northeast Fence Line
Coordinates:40.544175, -112.058558
Represents:Post Removal Sidewall 2.5-3 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:9 -point composite sample with subsamples spaced 33 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-16
Date/Time:August 27, 2021 12:55 PM
Location:East/northeast Fence Line
Coordinates:40.542032, -112.057975
Represents:Post Removal Ground Surface 3-3.5 feet below ground
surface
Configuration:6 -point composite sample with subsamples spaced 20 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
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t_id_69 Page 8 of 9 Pages5/10/2023 3:13:28 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-17
Date/Time:October 12, 2021 09:55 AM
Location:East/northeast Fence Line
Coordinates:40.540852, -112.057954
Represents:Post Removal Sidewall 2-2.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 62.5 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:FS-18
Date/Time:October 12, 2021 10:05 AM
Location:East/northeast Fence Line
Coordinates:40.541677, -112.057922
Represents:Post Removal Sidewall 2-2.5 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 49 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:C3S
Date/Time:September 22, 2021 01:40 PM
Location:East/northeast Fence Line
Coordinates:40.542183, -112.058519
Represents:Post Removal Sidewall 8-9 feet below ground surface At the
interval with the highest impacts prior to soil removal
Configuration:4 -point composite sample with subsamples spaced 20 feet
apart
Sample Purpose:Confirmation Sampling.
Notes:
Unable to access area due to high wall safety. Samples
collected via excavator bucket.
Photos
Facing southwest.
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Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:C7FS-1
Date/Time:September 02, 2021 12:30 PM
Location:C7 Excavation
Coordinates:40.541961, -112.058684
Represents:Post Removal Sidewall 6.5-7 feet below ground surface
Between S12 and S20. At the interval with the highest
impacts prior to soil removal
Configuration:Single Point Grab Sample
Sample Purpose:Sidewall C7fs Was Not Compiled In Order To Provide The
Most Conservative Data.
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_84 Page 1 of 13 Pages
Kleinfelder Representative Signature  
5/10/2023 12:52:06 PM
Confirmation Sample
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:C7FS-2
Date/Time:September 02, 2021 02:20 PM
Location:C7 Excavation
Coordinates:40.541976, -112.058666
Represents:Post Removal Sidewall 6.5-7 feet below ground surface C7
Excavation At the interval with the highest impacts prior to
soil removal
Configuration:Single Point Grab Sample
Sample Purpose:Sidewall C7fs Was Not Compiled In Order To Provide The
Most Conservative Data.
Notes:
Photos
C7 Excavation “A” wall, facing northeast
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Confirmation Sample
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:C7FS-3
Date/Time:September 02, 2021 02:25 PM
Location:C7 Excavation
Coordinates:40.542022, -112.058708
Represents:Post Removal Sidewall 6.5-7 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:Single Point Grab Sample
Sample Purpose:Sidewall C7fs Was Not Compiled In Order To Provide The
Most Conservative Data.
Notes:
Photos
C7 Excavation “A” wall, facing northeast
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Confirmation Sample
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:C7FS-4
Date/Time:September 02, 2021 02:30 PM
Location:C7 Excavation
Coordinates:40.542015, -112.058799
Represents:Post Removal Sidewall 6.5-7 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:Single Point Grab Sample
Sample Purpose:Sidewall C7fs Was Not Compiled In Order To Provide The
Most Conservative Data.
Notes:
Photos
Corner between “A” and “D” wall, facing north
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Confirmation Sample
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:C7FS-5
Date/Time:September 02, 2021 02:35 PM
Location:C7 Excavation
Coordinates:40.542022, -112.058879
Represents:Post Removal Sidewall 6.5-7 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:Single Point Grab Sample
Sample Purpose:Sidewall C7fs Was Not Compiled In Order To Provide The
Most Conservative Data.
Notes:
Photos
“D” wall, facing northwest, sample C7FS-5 collected on
wall where sluff is located in photo
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Confirmation Sample
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:C7FS-6
Date/Time:September 02, 2021 02:40 PM
Location:C7 Excavation
Coordinates:40.542001, -112.058920
Represents:Post Removal Sidewall 6.5-7 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:Single Point Grab Sample
Sample Purpose:Sidewall C7fs Was Not Compiled In Order To Provide The
Most Conservative Data.
Notes:
Photos
“D” wall, facing northwest, C7FS-6 collected on wall on the
left side of sluffed material
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Confirmation Sample
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:C7FS-7
Date/Time:September 02, 2021 02:45 PM
Location:C7 Excavation
Coordinates:40.541969, -112.058972
Represents:Post Removal Sidewall 6.5-7 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:Single Point Grab Sample
Sample Purpose:Sidewall C7fs Was Not Compiled In Order To Provide The
Most Conservative Data.
Notes:
Photos
C wall, facing west, C7FS collected on corner near test pit
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Confirmation Sample
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:C7FS-8
Date/Time:September 02, 2021 02:50 PM
Location:C7 Excavation
Coordinates:40.541922, -112.058899
Represents:Post Removal Sidewall 6.5-7 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:Single Point Grab Sample
Sample Purpose:Sidewall C7fs Was Not Compiled In Order To Provide The
Most Conservative Data.
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_84 Page 8 of 13 Pages5/10/2023 12:52:06 PM
Confirmation Sample
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:C7FS-9
Date/Time:September 02, 2021 02:55 PM
Location:C7 Excavation
Coordinates:40.541881, -112.058849
Represents:Post Removal Sidewall 6.5-7 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:Single Point Grab Sample
Sample Purpose:Sidewall C7fs Was Not Compiled In Order To Provide The
Most Conservative Data.
Notes:
Photos
Corner between “B” and “C” wall of C7 excavation, facing
southwest
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_84 Page 9 of 13 Pages5/10/2023 12:52:06 PM
Confirmation Sample
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:C7FS-10
Date/Time:September 02, 2021 03:00 PM
Location:C7 Excavation
Coordinates:40.541875, -112.058786
Represents:Post Removal Sidewall 6.5-7 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:Single Point Grab Sample
Sample Purpose:Sidewall C7fs Was Not Compiled In Order To Provide The
Most Conservative Data.
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_84 Page 10 of 13 Pages5/10/2023 12:52:06 PM
Confirmation Sample
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:C7FS-11
Date/Time:September 02, 2021 03:05 PM
Location:C7 Excavation
Coordinates:40.541851, -112.058716
Represents:Post Removal Sidewall 6.5-7 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:Single Point Grab Sample
Sample Purpose:Sidewall C7fs Was Not Compiled In Order To Provide The
Most Conservative Data.
Notes:
Photos
View facing southwest of “B” wall
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t_id_84 Page 11 of 13 Pages5/10/2023 12:52:06 PM
Confirmation Sample
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:C7FS-12
Date/Time:September 02, 2021 03:10 PM
Location:C7 Excavation
Coordinates:40.541848, -112.058661
Represents:Post Removal Sidewall 6.5-7 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:Single Point Grab Sample
Sample Purpose:Sidewall C7fs Was Not Compiled In Order To Provide The
Most Conservative Data.
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_84 Page 12 of 13 Pages5/10/2023 12:52:06 PM
Confirmation Sample
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:KT-8-1x
Date/Time:September 07, 2021 10:30 AM
Location:KT-8 Excavation Area
Coordinates:40.542302, -112.058070
Represents:Post Removal Sidewall 17-17.5 feet below ground surface
Repeat KT8-1 sample. Excavated an additional 2 feet
northeast. At the interval with the highest impacts prior to soil
removal
Configuration:Single Point Grab Sample
Sample Purpose:Sidewall Kt-8 Was Not Compiled In Order To Provide The
Most Conservative Data. Kt-8-1x Was Overexcavated And
Resampled.
Notes:
Photos
Actual sample location lies below sidewall sluff.
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_78 Page 1 of 10 Pages
Kleinfelder Representative Signature  
5/10/2023 12:52:40 PM
Confirmation Sample
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:G-26G
Date/Time:January 26, 2022 02:15 PM
Location:East/northeast Fence Line
Coordinates:40.543669, -112.062159
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:9 -point composite sample with subsamples spaced 30 feet
apart
Sample Purpose:Confirmation
Notes:This sample is the original version of G-26.
Photos
G-26G Looking East G-26G looking West
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_238 Page 1 of 3 Pages
Kleinfelder Representative Signature  
5/10/2023 12:59:33 PM
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:G-26S North
Date/Time:January 26, 2022 02:20 PM
Location:East/northeast Fence Line
Coordinates:40.543787, -112.062055
Represents:Post Removal Sidewall 11-14 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:5 -point composite sample with subsamples spaced 30 feet
apart
Sample Purpose:Confirmation
Notes:
“South GPS point” represents the easternmost corner of the
north sidewall. This sample is the original version of G-26
North.
Photos
G-26S North Looking West G-26S North Looking East
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Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:G-26S South
Date/Time:January 26, 2022 09:30 AM
Location:East/northeast Fence Line
Coordinates:40.543667, -112.062332
Represents:Post Removal Sidewall 13-14 feet below ground surface At
the interval with the highest impacts prior to soil removal
Configuration:Single Point Grab Sample
Sample Purpose:Confirmation
Notes:This sample is the original version of G-26 south sample.
Photos
G-26 S S Looking West G-26 S S Looking East
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5-point composite sample with subsamples spaced 30 feet apart
WEST LARK POST-REMOVAL
GROUND AND SIDEWALL SAMPLES
(Excavations- Bastian Ditch (DG, DS), G10, R-1 thru 4 )
SAMPLE INFORMATION SHEETS
POST-REMOVAL GROUND SAMPLES
BENEATH IMPACTED/ REMOVED STOCKPILES
(ESG 1 thru 23, H 5x, 11x, 13x)
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-1
Date/Time:March 15, 2022 10:31 AM
Location:Bastian Ditch Channel
Coordinates:40.540860, -112.064591
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:Confirmation sampling post-removal ES stockpiles.
Photos
Facing north.Facing south.
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t_id_289 Page 4 of 7 Pages5/23/2023 3:37:40 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-2
Date/Time:March 15, 2022 02:00 PM
Location:Bastian Ditch Channel
Coordinates:40.540305, -112.064996
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:Confirmation sampling post-removal ES stockpiles.
Photos
Facing south.Facing north.
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t_id_289 Page 5 of 7 Pages5/23/2023 3:37:40 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-3
Date/Time:May 02, 2022 10:30 AM
Location:Bastian Ditch Channel
Coordinates:40.544373, -112.063559
Represents:Post Removal Ground Surface 0-6 inches below ground
surface Ground surface below former ES stockpile location.
Configuration:6 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Sample taken from post-removal ES stockpile ground
surface.
Photos
Facing north.Facing south
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_331 Page 1 of 2 Pages
Kleinfelder Representative Signature  
5/23/2023 3:37:08 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-4
Date/Time:May 02, 2022 10:25 AM
Location:Bastian Ditch Channel
Coordinates:40.542744, -112.063812
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Sample taken from post-removal ES stockpile ground
surface.
Photos
Facing south
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_331 Page 2 of 2 Pages5/23/2023 3:37:08 PM
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-5
Date/Time:May 19, 2022 08:14 AM
Location:Bastian Ditch Channel
Coordinates:40.539616, -112.065019
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
Facing north Facing south
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_340 Page 1 of 1 Pages
Kleinfelder Representative Signature  
5/23/2023 3:36:18 PM
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Josh overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-6
Date/Time:May 24, 2022 12:30 PM
Location:Bastian Ditch Channel
Coordinates:40.542240, -112.063864
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_346 Page 1 of 2 Pages
Kleinfelder Representative Signature  
5/23/2023 3:35:57 PM
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Josh overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-7
Date/Time:May 24, 2022 12:45 PM
Location:Bastian Ditch Channel
Coordinates:40.541583, -112.064050
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_346 Page 2 of 2 Pages5/23/2023 3:35:57 PM
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Bill Bragdon
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-8
Date/Time:June 21, 2022 02:00 PM
Location:Bastian Ditch Channel
Coordinates:40.538951, -112.063921
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:6 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Conformation Samples
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_365 Page 5 of 5 Pages5/23/2023 3:35:25 PM
Confirmation Sample
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Bill Bragdon
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-9
Date/Time:June 22, 2022 09:00 AM
Location:Bastian Ditch Channel
Coordinates:40.539005, -112.063700
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:13 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Conformation Samples
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_362 Page 1 of 2 Pages
Kleinfelder Representative Signature  
5/23/2023 3:46:42 PM
Confirmation Sample
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Bill Bragdon
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-10
Date/Time:June 22, 2022 09:30 AM
Location:Bastian Ditch Channel
Coordinates:40.539045, -112.063438
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:15 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Conformation Samples
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_362 Page 2 of 2 Pages5/23/2023 3:46:42 PM
Confirmation Sample
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Bill Bragdon
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-11
Date/Time:June 21, 2022 11:15 AM
Location:Bastian Ditch Channel
Coordinates:40.539252, -112.062853
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:15 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Conformation Samples
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_365 Page 4 of 5 Pages5/23/2023 3:35:25 PM
Confirmation Sample
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Bill Bragdon
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-12
Date/Time:June 21, 2022 11:00 AM
Location:Bastian Ditch Channel
Coordinates:40.539758, -112.062901
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:9 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Conformation Samples
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_365 Page 3 of 5 Pages5/23/2023 3:35:25 PM
Confirmation Sample
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Josh Overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-13
Date/Time:June 28, 2022 10:45 AM
Location:Bastian Ditch Channel
Coordinates:40.539074, -112.064342
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Conformation Samples
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_368 Page 1 of 2 Pages
Kleinfelder Representative Signature  
5/23/2023 3:34:37 PM
Confirmation Sample
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Josh Overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-14
Date/Time:June 28, 2022 11:00 AM
Location:Bastian Ditch Channel
Coordinates:40.538505, -112.063829
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Conformation Samples
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_368 Page 2 of 2 Pages5/23/2023 3:34:37 PM
Confirmation Sample
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Josh Overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-15
Date/Time:July 05, 2022 09:30 AM
Location:Bastian Ditch Channel
Coordinates:40.537937, -112.063328
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Conformation Samples
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_371 Page 1 of 2 Pages
Kleinfelder Representative Signature  
5/23/2023 3:34:14 PM
Confirmation Sample
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Josh Overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-16
Date/Time:July 05, 2022 10:00 AM
Location:Bastian Ditch Channel
Coordinates:40.537356, -112.062861
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:10 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Conformation Samples
Notes:
Photos
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_371 Page 2 of 2 Pages5/23/2023 3:34:14 PM
Confirmation Sample
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Josh Overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-17
Date/Time:July 12, 2022 10:00 AM
Location:Bastian Ditch Channel
Coordinates:40.539130, -112.065487
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
ESG-17 Looking North ESG-17 Looking South
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_380 Page 1 of 2 Pages
Kleinfelder Representative Signature  
5/23/2023 3:30:27 PM
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Josh Overly
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-18
Date/Time:July 12, 2022 10:30 AM
Location:Bastian Ditch Channel
Coordinates:40.538464, -112.065814
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
ESG-18 Looking South ESG-18 Looking South
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_380 Page 2 of 2 Pages5/23/2023 3:30:27 PM
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-19
Date/Time:July 21, 2022 09:12 AM
Location:Bastian Ditch Channel
Coordinates:40.537827, -112.066145
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:10 -point composite sample with subsamples spaced 0 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
ESG-19 Facing South ESG-19 Facing North
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_386 Page 1 of 1 Pages
Kleinfelder Representative Signature  
5/23/2023 3:26:58 PM
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-20
Date/Time:August 09, 2022 09:15 AM
Location:Bastian Ditch Channel
Coordinates:40.544551, -112.063555
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
This sample represents approximately 250 ft of post-removal
ground surface.
Photos
ESG-20 Looking Southeast ESG-20 Looking North
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_389 Page 1 of 3 Pages
Kleinfelder Representative Signature  
5/23/2023 3:26:12 PM
sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-21
Date/Time:August 09, 2022 10:30 AM
Location:Bastian Ditch Channel
Coordinates:40.544151, -112.064141
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
This sample represents approximately 250 ft of post-removal
ground surface.
Photos
ESG-21 Looking Northeast ESG-21 Looking South
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_389 Page 2 of 3 Pages5/23/2023 3:26:12 PM
sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-22
Date/Time:August 09, 2022 11:00 AM
Location:Bastian Ditch Channel
Coordinates:40.543599, -112.063846
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Confirmation
Notes:
This sample represents approximately 250 ft of post-removal
ground surface.
Photos
ESG-22 Looking North ESG-22 Looking South
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_389 Page 3 of 3 Pages5/23/2023 3:26:12 PM
sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Katherine Meyr
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:ESG-23
Date/Time:October 28, 2022 10:25 AM
Location:Bastian Ditch Channel
Coordinates:40.53750, -112.06340
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:5 -point composite sample with subsamples spaced 50 feet
apart
Sample Purpose:Post Removal Stockpile Ground Surface
Notes:
Photos
ESG-23 Looking South ESG-23 Looking North
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_404 Page 1 of 1 Pages
Kleinfelder Representative Signature  
5/23/2023 3:25:14 PM
Confirmation Sample
Sample taken from ES stockpile post-removal ground surface
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:H-5X
Date/Time:March 29, 2022 10:30 AM
Location:East/northeast Fence Line
Coordinates:40.543405, -112.062354
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:4 -point composite sample with subsamples spaced 0 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
H-5X Looking East
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_316 Page 1 of 3 Pages
Kleinfelder Representative Signature  
5/10/2023 1:00:58 PM
Ground surface remaining after removal of impacted soil stockpile H-5
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:H-11X
Date/Time:March 29, 2022 10:40 AM
Location:East/northeast Fence Line
Coordinates:40.543392, -112.062054
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:4 -point composite sample with subsamples spaced 0 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
H-11X Looking North
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_316 Page 2 of 3 Pages5/10/2023 1:00:58 PM
Ground surface remaining after removal of impacted soil stockpile H-11
Sample Information Sheet
by  Ted Wallace
Lark Monofill Environmental
Consulting
20201466.001A
Hillard, Corinne
Sample Information
Sample ID:H-13X
Date/Time:March 29, 2022 10:50 AM
Location:East/northeast Fence Line
Coordinates:40.543309, -112.061486
Represents:Post Removal Ground Surface 0-6 inches below ground
surface
Configuration:4 -point composite sample with subsamples spaced 0 feet
apart
Sample Purpose:Confirmation
Notes:
Photos
H-13X Looking East
/FieldNet/Service_Lines/Contaminated_Lands/Env_trench_remediation_qc/even
t_id_316 Page 3 of 3 Pages5/10/2023 1:00:58 PM
Ground surface remaining after removal of impacted soil stockpile H-13