23057_Charlotte Van&Storage_VIMS Post-Occ Sampling Rpt & Review Letter_20230825

August 25, 2023
Sent via Email
Patrick Foster
Lennar Multifamily Communities, LLC 500 East Morehead Street, Suite 300 Charlotte, North Carolina 28202 [e-mail]
Subject: VIMS Post-Occupancy Sampling Report Review
Charlotte Van & Storage Co. Building 1, Clubhouse, & Maintenance Building Charlotte, Mecklenburg County Brownfields Project No. 23057-19-060
Dear Mr. Foster:
The North Carolina Department of Environmental Quality’s Brownfields Redevelopment
Section (DEQ Brownfields) received the VIMS Post-Occupancy Sampling Report – Building 1,
Clubhouse, & Maintenance Building, dated August 8, 2023 (Report) submitted on your behalf by
Ms. Haley Martin of Hart & Hickman, PC.
DEQ Brownfields has reviewed the Report and evaluated the sub-slab vapor and indoor air data using the DEQ Risk Calculator. As noted in the report, the risk evaluation for sub-slab vapor
data indicates that calculated risks are below the DEQ threshold for residential use, but calculated risk for indoor air data exceeds the DEQ non-carcinogenic risk threshold. The primary risk driver is isopropyl alcohol which report suggests may be associated with potential indoor air sources such as cleaning solutions. Attenuation of other volatile organic compounds (VOCs)
across the floor slab would tend to support that conclusion. The indoor air and sub-slab vapor
data will be re-evaluated following the next semi-annual post-occupancy vapor intrusion
sampling event for Building 1. During the next event, please document in the pre-sampling survey any use of materials that may contribute to indoor air concentrations and provide MSDSs as warranted. To the extend practical, low VOC materials should be used on-site to avoid possible indoor air exceedances.
Please be advised that this compliance review from DEQ Brownfields does not waive any applicable requirement to obtain necessary permits, licenses or certifications which may be required from other state or local entities.
Patrick Foster August 24, 2023 Page 2

If you have questions, please contact me at [phone], or by e-mail at
[e-mail].
Sincerely,
Peter L. Doorn Brownfields Project Manager
ec: Patrick Foster, LMC Christie Zawtocki, Hart & Hickman Haley Martin, Hart & Hickman Ralph McGee, Hart & Hickman
Tracy Wahl, DEQ Brownfields
Kevin Slaughter, DEQ Brownfields

Via Email
August 8, 2023
NCDEQ – Division of Waste Management
Brownfields Redevelopment Section
1646 Mail Service Center
Raleigh, North Carolina 27699-1646
Attn: Mr. Pete Doorn
Re: VIMS Post-Occupancy Sampling Report
Building 1, Clubhouse, & Maintenance Building
Charlotte Van and Storage Co.
Charlotte, North Carolina
Brownfields Project No. 23057-19-060
H&H Project No. LEN-008
Dear Pete:
On behalf of Quarterra Multifamily, enclosed please find a copy of the VIMS Post-Occupancy
Sampling Report prepared for Building 1, the Clubhouse, and the Maintenance Building recently
constructed at the Charlotte Van and Storage Co. Brownfields property located in Charlotte,
Mecklenburg County.
Should you have questions or need additional information, please do not hesitate to contact us at
[phone].
Sincerely,
Hart & Hickman, PC
Christie Zawtocki, PE Haley Martin, PG
Principal Senior Project Geologist
Enclosures
cc: Mr. Patrick Foster, Quarterra (Via Email)

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VIMS Post-Occupancy Sampling Report
Building 1, Clubhouse, & Maintenance Building
Charlotte Van and Storage Co.
Charlotte, North Carolina
H&H Job No. LEN-008

Table of Contents

Section Page No.

1.0 Introduction .............................................................................................................................1 
2.0 Vapor Intrusion Mitigation System Installation ..................................................................3 
3.0 Post-Occupancy VIMS Effectiveness Sampling ...................................................................4 
3.1 Sub-Slab Soil Vapor Sampling ..............................................................................................4 
3.1.1 Sub-Slab Soil Vapor Sampling Methodology................................................................ 4 
3.1.2 Sub-Slab Soil Vapor Results .......................................................................................... 5 
3.1.3 Sub-Slab Soil Vapor Risk Evaluation ............................................................................ 7 
3.2 Indoor Air Sampling Activities .............................................................................................8 
3.2.1 Building Survey Activities ............................................................................................. 9 
3.2.2 Indoor Air Sampling Methodology ................................................................................ 9 
3.2.3 Indoor Air Sampling Results ....................................................................................... 10 
3.2.4 Indoor Air Risk Evaluation .......................................................................................... 12 
4.0 Summary and Conclusions ..................................................................................................14 

List of Tables

Table 1 Summary of Sub-Slab Soil Vapor Analytical Results
Table 2 Summary of Building 1 Indoor Air Analytical Results
Table 3 Comparison of Sub-Slab Soil Vapor and Indoor Air Analytical Results

List of Figures

Figure 1 Site Location Map
Figure 2 Site Map
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List of Appendices

Appendix A VIMS As-Built Drawings (VM-1, VM-2, VM-3 & VM-5)
Appendix B Field Forms
Appendix C Laboratory Analytical Report
Appendix D DEQ Risk Calculators

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VIMS Post-Occupancy Sampling Report
Building 1, Clubhouse, & Maintenance Building
Charlotte Van and Storage Co.
Charlotte, North Carolina
H&H Job No. LEN-008

1.0 Introduction

On behalf of Quarterra Multifamily (Quarterra), Hart & Hickman, PC (H&H) has prepared this
report to document vapor intrusion mitigation system (VIMS) post-occupancy indoor air and sub-
slab sampling activities completed for Building 1, the Clubhouse, and the Maintenance Building
associated with the Verbena Street Apartments multi-family development at the Charlotte Van and
Storage Co. Brownfields property (Brownfields Project No. 23057-19-060). The Brownfields
property is located at the intersection of Verbena Street and Gilead Street in Charlotte,
Mecklenburg County, North Carolina (Site or subject Site). The Site consists of one approximately
5.8-acre parcel of land (Parcel Identification No. 14903412) located in a mixed residential,
commercial, and industrial use area of lower South End Charlotte. A Site location map is provided
as Figure 1, and a Site map is provided as Figure 2.

The Site has been redeveloped with two apartment buildings (distinguished as Building 1 and
Building 2), a Clubhouse, a Maintenance Building, and associated vehicle access and parking
areas. Building 1 is a four-story apartment building with a 31,302 square foot (sq ft) ground floor
footprint that includes for-rent residential units, a leasing office, a mail room, and mechanical
rooms. Building 2 is a five-story apartment building with a split first level. The Clubhouse is a
single-story approximately 3,650-sq ft detached building used as a common space and recreational
area for the residential tenants. The Maintenance Building is a single-story approximately 1,145-
sq ft structure used as a workspace and equipment/materials storage area for maintenance
personnel. No residential use is planned for the Clubhouse or Maintenance Building. This report
documents VIMS post-occupancy sampling for Building 1, the Clubhouse, and the Maintenance
Building. A separate report will be submitted for Building 2.

A Brownfields Agreement was recorded for the Site on September 10, 2021. Results of previous
assessment activities indicated that vapor mitigation was warranted for Building 1, Building 2, the
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Clubhouse, and the Maintenance Building. As such, a Vapor Intrusion Mitigation Plan (VIMP)
was prepared and submitted to the North Carolina Department of Environmental Quality (DEQ).
The VIMP revision dated August 11, 2021, was approved by DEQ in a letter dated August 12,
2021. VIMS installation activities for Building 1, the Clubhouse, and the Maintenance Building
are documented in H&H’s VIMS Installation Completion Report dated January 13, 2023 and
revised February 3, 2023.

A brief summary of the VIMS is provided in Section 2.0, a discussion of post-occupancy sub-slab
soil vapor and indoor air sampling activities is provided in Section 3.0, and a summary and
conclusions based on the sampling results are provided in Section 4.0.

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2.0 Vapor Intrusion Mitigation System Installation

As detailed in the VIMP, separate VIMSs were installed for Building 1, the Clubhouse, and the
Maintenance Building. The VIMSs for Building 1 and the Clubhouse each include a permeable
gravel layer, sub-slab vapor collection piping, vapor barrier, riser piping, and passive ventilators.
The VIMS for the Maintenance Building includes a permeable gravel layer and vapor barrier. For
Building 1 and the Clubhouse, passive sub-slab vapor extraction is achieved through an
interconnected system of 3-inch Schedule (SCH) 40 PVC vapor collection/conveyance piping
installed in a 4-inch permeable gravel layer beneath the building. The permeable gravel layer
(clean #57) was installed beneath the entirety of the buildings to enhance sub-slab vapor
transmission and allow for air movement beneath the slabs. In Building 1 and the Clubhouse, the
sub-slab vapor collection piping is connected to 3-inch riser piping which extends vertically
through the buildings and discharges vapors through exhaust stacks installed above the building
roofs. Empire syphon ventilators were installed on the discharge end of the exhaust stacks on the
roofs. For each building, a vapor barrier (Vaporblock® Plus™ 20) was installed above the gravel
layer and beneath the concrete slab. VIMS as-built drawings are provided in Appendix A.

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3.0 Post-Occupancy VIMS Effectiveness Sampling

The DEQ-approved VIMP states that post-occupancy sampling events will be completed semi-
annually to evaluate effectiveness of the VIMS. In compliance with the approved VIMP, the first
post-occupancy sampling event was performed approximately six months after the pre-occupancy
sampling event and is documented herein. Eight sub-slab soil vapor samples were collected from
Building 1, one sub-slab soil vapor sample was collected from the Clubhouse, and one sub-slab
soil vapor sample was collected from the Maintenance Building. In addition, three indoor air
samples were collected from Building 1 concurrent with the sub-slab soil vapor samples.

The sub-slab soil vapor and indoor air assessment activities were conducted in general accordance
with the DEQ-approved VIMP and the DEQ Department of Waste Management (DWM) Vapor
Intrusion Guidance (Guidance) dated March 2018. Details of the sub-slab soil vapor and indoor
air sampling activities and results are provided in the following sections.

3.1 Sub-Slab Soil Vapor Sampling

On June 22, 2023, H&H collected sub-slab soil vapor samples from select permanent monitoring
points within each building. The sub-slab soil vapor samples were collected from permanent
monitoring points MP-1 in the Maintenance Building, MP-2 through MP-9 in Building 1, and MP-
10 in the Clubhouse (see sample locations on VM-3 and VM-5 in Appendix D). For quality
assurance/quality control (QA/QC) purposes, one duplicate sub-slab soil vapor sample (SS-MP-
DUP) was collected from the MP-2 parent location. The duplicate sample was collected utilizing
a laboratory-supplied stainless-steel sampling “T” fitting which allows for the simultaneous
collection of two sub-slab soil vapor samples from a single location. The sub-slab soil vapor
sampling methodology, results, and risk evaluation are discussed below.

3.1.1 Sub-Slab Soil Vapor Sampling Methodology

The sub-slab soil vapor samples were collected from the permanent monitoring points by securing
Teflon sample tubing to either the vapor pin or to a 2-inch expandable well cap with a sampling
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port that was secured onto the 2-inch diameter PVC monitoring point. The tubing was connected
to a laboratory-supplied airflow regulator and batch-certified 1.4-liter stainless steel Summa
canister using a nut and ferrule assembly to create an airtight seal. The airflow regulator was preset
by the laboratory to collect a soil vapor sample over a 10-minute period at a flow rate no greater
than approximately 140 milliliters per minute.

Prior to sample collection, H&H conducted a leak test at each monitoring point by placing a shroud
around the monitoring point and sampling train including the Summa canister. The air within the
shroud was flooded with helium vapor and concentrations within the shroud were measured with
a calibrated helium detector. Helium concentrations within the shroud were maintained between
approximately 10% and 15%. A GilAir vacuum pump was connected to the sample tubing outside
of the shroud and used to purge a minimum of three volumes (monitoring point and sample train)
of soil vapor into a Tedlar® bag at each sampling point. The helium detector was used to measure
helium concentrations within the Tedlar bag sample to confirm helium concentrations in the
sample train were less than 10% of that measured within the shroud. Results of the helium leak
checks indicated that short-circuiting at the monitoring points or within the sampling train was not
present. Field forms completed by sampling personnel are included in Appendix B.

Following successful leak checks, the airflow regulators were opened to allow collection of the
sub-slab soil vapor samples. Vacuum in the Summa canisters was monitored during the sampling
event to confirm adequate sample volume was collected at each monitoring point location. Upon
completion of sample collection, the airflow regulator was closed to the Summa canister. The
canisters were labeled with the sample identification, beginning and ending times, pressure
measurements, and the requested analysis. The canisters were then placed in laboratory-supplied
shipping containers and delivered to Waypoint Analytical (Waypoint) under standard chain of
custody protocols for analysis of volatile organic compounds (VOCs) by EPA Method TO-15.

3.1.2 Sub-Slab Soil Vapor Results

The sub-slab soil vapor sample analytical results are summarized in Table 1. The Maintenance
Building and Clubhouse results were compared to the DEQ Non-Residential Vapor Intrusion Sub-
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slab and Exterior Soil Gas Screening Levels (SGSLs), and the Building 1 results were compared
to the DEQ Residential and Non-Residential Vapor Intrusion SGSLs dated January 2023. Copies
of the laboratory analytical report and the chain of custody record are provided in Appendix C.

Maintenance Building
Laboratory analytical results for the Maintenance Building indicate the presence of several
compounds at concentrations above laboratory method detection limits (MDLs) in the sub-slab
soil vapor sample. However, no compounds were detected at concentrations above the Non-
Residential SGSLs. Tetrachloroethene (PCE) and trichloroethene (TCE) were detected at
concentrations of 3.14 micrograms per cubic meter (µg/m3) and 0.999 µg/m3, respectively, which
are substantially below the Non-Residential SGSLs of 3,500 µg/m3 and 180 µg/m3, respectively.

Building 1
Laboratory analytical results for Building 1 indicate the presence of several compounds at
concentrations above laboratory MDLs in the sub-slab soil vapor samples. Only two compounds,
chloroform and naphthalene, were detected at concentrations above Residential SGSLs.
Chloroform was detected at concentrations above its Residential SGSL of 4.1 µg/m3 in samples
SS-MP-3 through SS-MP-9 (ranging from 7.62 µg/m3 to 40.2 µg/m3). Naphthalene was reported
in sample SS-MP-6 (4.15 µg/m3) above its Residential SGSL of 2.8 µg/m3. No other compounds
were detected at concentrations above DEQ Residential Vapor Intrusion SGSLs, and no
compounds were detected above the DEQ Non-Residential Vapor Intrusion SGSLs.

PCE was detected in four of the Building 1 sub-slab soil vapor samples (SS-MP-3 through SS-
MP-6) at concentrations above the laboratory MDL but below the Residential SGSL of 280 µg/m3,
ranging from 1.10 µg/m3 to 40.2 µg/m3. TCE was not detected at concentrations above the
laboratory MDL in any of the sub-slab soil vapor samples collected from Building 1.

Clubhouse
Laboratory analytical results for the Clubhouse indicate the presence of several compounds at
concentrations above laboratory MDLs, but below the DEQ Non-Residential Vapor Intrusion
SGSLs. PCE and TCE were not detected at concentrations above the laboratory MDL.
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3.1.3 Sub-Slab Soil Vapor Risk Evaluation

The DEQ Vapor Intrusion SGSLs are conservative and based on a Target Carcinogenic Risk
(TCR) of 1 x 10-6 and a Target Hazard Quotient (HQ) of 0.2 for potential non-carcinogenic risks.
The DEQ and EPA acceptable risk level for potential carcinogenic risks is a cumulative lifetime
incremental cancer risk (LICR) of 1 x 10-4 or less, and the acceptable level for non-carcinogenic
risks is a cumulative hazard index (HI) of 1.0 or less. The HI is the sum of hazard quotients (HQs)
for each target analyte detected in a sample.

To further evaluate sub-slab soil vapor concentrations, H&H utilized the DEQ Risk Calculator
(January 2023) to calculate potential vapor intrusion risks for each building. H&H modeled a
worst-case scenario for Building 1, the Clubhouse, and the Maintenance Building by using the
highest concentrations of any compound detected below the slab of each building. Based on the
planned uses of the buildings, H&H calculated risks for the Maintenance Building and Clubhouse
assuming a non-residential use scenario, and both residential and non-residential use scenarios for
Building 1. The calculated cumulative LICR and HI values are provided in Table 1, and copies of
the completed DEQ Risk Calculators are provided in Appendix D. Results of risk calculations for
each Site building are discussed below.

Maintenance Building
As shown in Table 1, the non-residential worst-case risk calculation for the Maintenance Building
indicates a calculated cumulative LICR of 1.1 x 10-6 and a HI value of 0.0089. The calculated
cumulative LICR and HI values are within the acceptable levels established by the DEQ and EPA.
Thus, the sub-slab soil vapor analytical results and risk calculations indicate that the detected sub-
slab soil vapor concentrations do not pose potential vapor intrusion risks at unacceptable levels for
the Maintenance Building.

Building 1
As shown in Table 1, results of the worst-case risk calculations for Building 1 indicate a calculated
cumulative LICR of 1.2 x 10-5 and a HI value of 0.36 for a residential use scenario and a cumulative
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LICR of 9.4 x 10-7 and a HI value of 0.028 for a non-residential use scenario. Risk calculator
results indicate that under a hypothetical worst-case scenario for both residential and non-
residential use for Building 1, the cumulative LICR is less than 1 x 10-4 and the cumulative HI is
less than 1.0. Thus, the sub-slab soil vapor analytical results and risk calculations indicate that the
VIMS is effectively minimizing the sub-slab accumulation of compounds at concentrations that
would pose potential vapor intrusion risks at unacceptable levels for Building 1.

Clubhouse
As shown in Table 1, results of the non-residential worst-case risk calculation for the Clubhouse
indicate a calculated cumulative LICR of 2.8 x 10-8 and a HI value of 0.0015. The calculated non-
residential cumulative LICR and HI values are within the DEQ and EPA acceptable levels. Thus,
the sub-slab soil vapor analytical results and risk calculations indicate that the VIMS is effectively
minimizing the sub-slab accumulation of compounds at concentrations that would pose potential
vapor intrusion risks at unacceptable levels for the Clubhouse building.

3.2 Indoor Air Sampling Activities

On June 21 and 22, 2023, H&H collected three indoor air samples (IAS-1, IAS-2, and IAS-3) from
within Building 1. The indoor air samples were collected prior to collection of sub-slab soil vapor
samples to avoid potential cross-contamination associated with temporarily opening and purging
the sub-slab monitoring points. The June 2023 indoor air sampling was performed approximately
six months after the pre-occupancy sampling event. Note, the pre-occupancy sample location for
IAS-3 was in the neighboring unit; however, due to the leasing activities, it was moved to the
adjacent residential unit. This location change was discussed with and approved by Mr. Peter
Doorn with the DEQ Brownfields Program prior to the sampling event. Each sample was located
in a finished residential unit.

In addition to the indoor air samples, an exterior background ambient air sample (IAS-BKG) was
collected at the time of the indoor air sampling event. The location of the background sample was
upwind of Building 1 as determined on the day of the sampling event based on the prevailing wind
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direction. The locations of the indoor air and background air samples are shown on Sheet VM-3
of Appendix A.

3.2.1 Building Survey Activities

Prior to collecting indoor air samples, H&H completed a survey within Building 1 to identify
potential above-slab sources of VOCs. At the time of sampling, the units were empty and had not
been occupied since the completion of the building. H&H observed moderate to heavy vehicular
use on Verbena Street and the use of heavy equipment for construction-related purposes on-Site.
The heating, ventilation, and air conditioning (HVAC) system for Building 1 was active at the time
of indoor air sampling; thus, the samples were representative of normal living conditions. Copies
of the indoor air building survey form and the sampling forms completed by H&H sampling
personnel during the indoor air sampling event are included in Appendix B.

3.2.2 Indoor Air Sampling Methodology

The background and indoor air samples were collected using 6-liter stainless steel Summa sample
canisters connected to in-line flow controllers with a vacuum gauge. The indoor air samples were
collected using individually-certified Summa canisters, and the outdoor air sample was collected
using a batch-certified Summa canister. The flow controllers were set by the laboratory to allow
collection of the samples over a 24-hour period. The sample intake point for each canister was
positioned approximately 5 ft above grade (typical breathing zone height). One duplicate indoor
air sample (IAS-DUP) was collected for quality assurance/quality control (QA/QC) purposes from
the IAS-3 parent location during the sampling event. The duplicate sample was collected utilizing
a laboratory-supplied stainless-steel sampling “T” fitting which allows for the simultaneous
collection of two indoor air samples from a single location.

During the sampling activities, indoor/outdoor air pressure differential was measured for the
building near the start, middle, and end of the 24-hour sampling period using a manometer
sensitive to 0.001 inches of water. In addition, Site-specific weather conditions including exterior
wind speed, exterior wind direction, indoor/outdoor temperature, barometric pressure, and
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precipitation were recorded near the start, middle, and end of the sampling period. Indoor air
sampling field forms completed by sampling personnel are included in Appendix B.

Prior to and after the indoor and background air samples were collected, vacuum in the canisters
was measured using a laboratory-supplied vacuum gauge and recorded by sampling personnel.
The starting vacuum was within 10% of the vacuum when the Summa canisters left the laboratory.
Vacuum within the sample canisters was not allowed to reach 0 inches of mercury; each sample
was collected when the canister reached approximately 5 inches of mercury.

The starting and ending vacuums in each canister were recorded by sampling personnel on the
sample chain of custody. The sample canisters were labeled, packaged in a laboratory provided
container, and shipped under standard chain of custody protocols to Waypoint for analysis of a
select list of VOCs by TO-15. The target analyte list was determined based on the VOCs detected
in the sub-slab soil vapor samples and was approved by Mr. Peter Doorn with the DEQ
Brownfields Program in an email dated July 5, 2023. A list of the select VOCs analyzed is included
in the laboratory analytical report provided in Appendix C.

3.2.3 Indoor Air Sampling Results

The indoor air analytical results are summarized in Table 2 and were compared to the DEQ
Residential and Non-Residential Vapor Intrusion Indoor Air Screening Levels (IASLs) dated
January 2023. Copies of the laboratory analytical report and chain of custody record are provided
in Appendix C.

The indoor air sample analytical results indicate that several compounds were detected at
concentrations above laboratory MDLs. Three compounds (benzene, chloroform, and isopropyl
alcohol) were detected in one or more samples at concentrations above the DEQ Residential Vapor
Intrusion IASLs, and one compound (chloroform) was detected in two samples (and the duplicate)
at concentrations above the DEQ Non-Residential IASL. A brief discussion of the compounds
detected above IASLs is provided below. PCE was detected above the laboratory MDL but below
the Residential IASL of 8.3 µg/m3 in one indoor air sample (IAS-3) and the associated duplicate
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sample (IAS-DUP) collected in the east portion of Building (0.922 µg/m3 and 0.732 J µg/m3
respectively). TCE was not detected above the laboratory MDL in any of the indoor air samples.

Benzene was detected in each of the indoor air samples at concentrations ranging from 0.559 J
µg/m3 to 0.836 J µg/m3. Benzene was also detected in the background, outdoor air sample at a
concentration of 0.485 J µg/m3 and was detected in one of the laboratory blank samples at a
concentration of 0.571 µg/m3. Table 3 provides a comparison of the sub-slab soil vapor and indoor
air sample data. As shown in the table, the detected sub-slab vapor benzene concentrations are
lower than the detected indoor air benzene concentrations. Thus, the detected indoor air
concentrations of benzene are attributable to outdoor air, laboratory contamination, and/or above-
slab sources.

Chloroform, was detected in two of the indoor air samples and the associated duplicate sample
(IAS-2, IAS-3, and IAS-DUP) at concentrations ranging from 0.786 J µg/m3 to 0.854 J µg/m3,
which exceed the DEQ Residential IASL of 0.12 µg/m3and the Non-Residential IASL of 0.53
µg/m3. Each of the detected concentrations of chloroform are J-flag values, indicating that the
detected concentrations are above the laboratory MDL, but below the laboratory calibrated
reporting limit resulting in laboratory estimated values. Chloroform is found in chlorinated
municipal water supplies and is released from water use indoors. As such, chloroform is
ubiquitous in indoor air, and the detected indoor air concentrations are not believed to be associated
with vapor intrusion.

Isopropyl alcohol was detected in two of the indoor air samples and the duplicate sample (56.5
µg/m3 in IAS-1, 134 µg/m3 in IAS-3, and 122 µg/m3 in IAS-DUP) at concentrations above the
Residential IASL. The detected indoor air concentrations are higher than the detected sub-slab
soil vapor concentrations (Table 3); thus, it appears that the detected concentrations of isopropyl
alcohol in the indoor air samples are attributable to an above-slab source. Isopropyl alcohol is
commonly found in household cleaning products that would have been used during the finishing
activities within the units.

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3.2.4 Indoor Air Risk Evaluation

The DEQ Vapor Intrusion IASLs are conservative and based on a TCR for potential carcinogenic
risks of 1 x 10-6 and a THQ of 0.2 for potential non-carcinogenic risks and only apply to indoor air
contaminants from structural vapor intrusion. The DEQ and EPA acceptable risk level for
potential carcinogenic risks is a cumulative LICR of 1 x 10-4 or less and the acceptable level for
non-carcinogenic risks is a HI of 1.0 or less.

H&H utilized the DEQ Risk Calculator (January 2023) to evaluate risks associated with the
detected indoor air concentrations. Risk calculations were completed for both residential and non-
residential use scenarios based on the planned use of Building 1. A conservative, worst-case
scenario was evaluated using the highest concentration of any compound detected within any
Building 1 indoor air sample. The calculated cumulative LICR and HI values are discussed below
and are summarized in Table 2.

The calculated risks for a hypothetical worst-case residential scenario for Building 1 indicate the
cumulative LICR is 1.2 x 10-5 and the HI is 1.4. The calculated worst-case non-residential risks
indicate the cumulative LICR is 2.8 x 10-6 and the cumulative HI is 0.35. The cumulative
residential and non-residential LICRs and non-residential HI are within the acceptable risk levels;
however, the HI for a residential use scenario exceeds the acceptable risk level of 1.0.

Review of the risk calculations indicates that isopropanol (isopropyl alcohol) is the primary driver
of the HI exceedance, contributing 0.64 to the total. As mentioned previously, the indoor air
concentrations of isopropyl alcohol were higher than the detected sub-slab soil vapor
concentrations, and isopropyl alcohol is found in many cleaning products. Thus, the presence of
isopropyl alcohol in indoor air is attributable to cleaning materials and is not attributable to
environmental impacts identified at the Site.

The calculated cumulative LICR and HI values include compounds that are attributable to outdoor,
background air sources, laboratory contamination, and/or above-slab sources, as discussed above.
13
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Thus, the calculated cumulative risks are conservative and are not fully attributable to vapor
intrusion. Copies of the completed risk calculators are provided in Appendix D.

14
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4.0 Summary and Conclusions

H&H completed the first VIMS post-occupancy sampling event for Building 1, the Clubhouse,
and the Maintenance Building at the Verbena Apartments, which have been completed at the
Charlotte Van & Storage Co. Brownfields property (Brownfields Project No. 23057-19-060). The
sub-slab soil vapor and indoor air assessment activities are summarized below.

VIMS Effectiveness Testing – Sub-Slab Soil Vapor
Sub-slab soil vapor samples were collected from Building 1, the Clubhouse, and the Maintenance
Building to evaluate the effectiveness of the VIMS. For Building 1, only two compounds
(chloroform and naphthalene) were detected in the sub-slab soil vapor samples at concentrations
above the DEQ Residential Vapor Intrusion SGSLs and no compounds were detected at
concentrations above the DEQ Non-Residential Vapor Intrusion SGSLs. Risk calculator results
indicate that under a hypothetical worst-case scenario for both residential and non-residential use
for Building 1, the cumulative LICR is less than 1 x 10-4 and the cumulative HI is less than 1.0.

The sub-slab soil vapor laboratory analytical results for the Clubhouse and the Maintenance
Building did not identify compounds of concern at concentrations above the DEQ Non-Residential
Vapor Intrusion SGSLs. Results of the non-residential use scenario hypothetical worst-case risk
calculations completed for each building indicated acceptable risk levels.

Based on the sub-slab soil vapor data and the DEQ Risk Calculator results, the detected sub-slab
vapor concentrations at the Site do not pose an unacceptable vapor intrusion risk.

VIMS Effectiveness Testing – Building 1 Indoor Air
In accordance with the DEQ-approved VIMP, post-occupancy indoor air samples were collected
from Building 1. The analytical results indicate that several VOCs were detected in the samples
at concentrations above laboratory MDLs. Three compounds (benzene, chloroform, and isopropyl
alcohol) were detected above DEQ Residential Vapor Intrusion IASLs, and one compound
(chloroform) was detected above DEQ Non-Residential Vapor Intrusion IASLs. The compounds
detected in indoor air at concentrations above IASLs are attributed to outdoor sources and/or
15
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above-slab sources. PCE was detected above the laboratory MDLs in one indoor air sample and
the associated duplicate sample at low concentrations an order of magnitude below the DEQ DWM
Residential Vapor Intrusion IASL. Results of the hypothetical worst-case risk calculations for
Building 1 indicated acceptable risk levels for the cumulative residential LICR, non-residential
LICR, and non-residential HI; however, the residential HI exceeded the DEQ and EPA acceptable
level of 1.0. The residential HI exceedance was primarily due to the concentration of isopropyl
alcohol in sample IAS-3 and is not associated with vapor intrusion.

Summary
Based on the post-occupancy sub-slab soil vapor and indoor air sampling results, the VIMS is
effectively mitigating potential vapor intrusion risks at Building 1, the Clubhouse, and the
Maintenance Building. In accordance with the DEQ-approved VIMP, post-occupancy sub-slab
soil vapor sampling will continue on a semi-annual basis for future events. For Building 1, indoor
air sampling will be completed concurrent with the second post-occupancy sub-slab soil vapor
sampling event. If semi-annual sampling results indicate consistent or decreasing concentrations
within acceptable risk levels, a request to modify or terminate sampling will be submitted for DEQ
approval. After each post-occupancy sampling event, a brief report will be submitted to DEQ to
document the sampling activities and results.

Table 1
Summary of Sub-Slab Soil Vapor Analytical Results
Building 1, Clubhouse, and Maintenance Building
Charlotte Van and Storage Co.Charlotte, North CarolinaH&H Project No. LEN-008
Building ID Maintenance Clubhouse
Sample ID SS-MP-1 SS-MP-3 SS-MP-4 SS-MP-5 SS-MP-6 SS-MP-7 SS-MP-8 SS-MP-9 SS-MP-10
Sample Date
Units
VOCs (TO-15)
Acetone 46.5 249 252 118 134 763 96.0 5,970 93.1 38.8 76.0 NE NE
Benzene 3.56 0.875 J 1.06 J 0.396 J 0.373 J 0.523 J 0.287 J <1.46 <0.146 0.696 J <0.073 12 160
Bromodichloromethane <0.150 <0.299 <0.299 <0.150 <0.150 <0.299 <0.150 <3.00 1.23 J 1.39 J <0.150 2.5 33
Carbon Disulfide 2.54 J 1.49 J 2.50 J 1.60 J 0.971 J 1.25 J 0.965 J 4.61 J 0.741 J 1.26 J 0.759 J 4,900 61,000
Chloroform 51.3 2.97 J 2.97 J 22.1 9.83 22.5 40.2 7.62 J 12.8 26.7 1.43 J 4.1 53
Chloromethane <0.067 2.14 <0.134 0.877 J <0.067 1.65 J <0.067 <1.34 0.631 J <0.067 <0.067 630 7,900
Cyclohexane 3.19 J <0.321 <0.321 <0.161 2.36 J <0.321 <0.161 <3.22 <0.321 1.92 J <0.161 42,000 530,000
1,4-Dichlorobenzene 1.02 J <0.371 <0.371 <0.186 <0.186 <0.371 <0.186 <3.72 <0.371 <0.186 <0.186 8.5 110
Dichlorodifluoromethane <0.134 2.73 J 2.75 J 2.64 2.45 J 2.54 J 2.37 J <2.68 2.99 J 3.14 2.57 700 8,800
cis-1,2-Dichloroethene 4.47 <0.190 <0.190 <0.095 <0.095 <0.190 <0.095 <1.91 <0.190 <0.095 <0.095 NE NE
1,2-Dichloropropane 2.45 <0.409 <0.409 <0.205 <0.205 <0.409 2.16 J <4.10 <0.409 0.563 J <0.205 25 330
1,2-Dichlorotetrafluoroethane 58.5 <1.24 <1.24 <0.622 <0.622 <1.24 <0.622 <12.4 <1.24 <0.622 <0.622 NE NE
Ethyl Acetate <0.136 2.83 J 3.79 3.15 0.799 J <0.271 2.21 <2.72 1.83 J 1.92 14.8 490 6,100
Ethylbenzene 24.7 4.57 4.49 0.998 J 0.694 J 1.53 J 0.351 J <2.12 <0.211 0.325 J 0.534 J 37 490
4-Ethyltoluene <0.128 1.14 J 1.03 J 0.584 J <0.128 <0.256 <0.128 <2.56 <0.256 <0.128 <0.128 NE NE
Heptane 0.848 J 2.48 J 2.64 J 0.368 J 0.704 J 1.12 J 0.864 J <2.86 <0.286 0.651 J 0.356 J 2,800 35,000
n-Hexane 2.07 1.10 J 1.21 J <0.047 <0.047 <0.094 0.271 J <0.942 <0.094 1.67 J 0.437 J 4,900 61,000
2-Hexanone <0.285 1.98 J 1.87 J <0.285 1.34 J 5.75 2.47 <5.71 1.22 J <0.285 <0.285 210 2,600
Isopropyl Alcohol 289 30.4 31.9 13.9 22.3 103 16.2 21.6 J 8.43 J 7.90 3.48 J 1,400 18,000
Methyl Ethyl Ketone (MEK)1.76 295 253 842 1,160 3,780 2,020 630 1,170 141 274 35,000 440,000
Methyl tert-butyl ether (MTBE)0.407 J <0.067 <0.067 <0.033 <0.033 <0.067 <0.033 <0.672 <0.067 <0.033 <0.033 360 4,700
4-Methyl-2-Pentanone 0.356 J 1.05 J 0.950 J <0.121 0.512 J 1.45 J 0.696 J <2.42 <0.242 0.331 J <0.121 21,000 260,000
Methylene Chloride 3.84 <0.975 <0.975 <0.488 <0.488 <0.975 <0.488 <9.75 <0.975 4.93 <0.488 3,400 53,000
Naphthalene <0.183 <0.365 <0.365 <0.183 <0.183 <0.365 4.15 <3.66 <0.365 <0.183 <0.183 2.8 36
Styrene 4.60 1.76 J 1.89 J 0.796 J 2.28 5.95 1.19 J <2.48 <0.248 <0.124 <0.124 7,000 88,000
Tetrachloroethene 3.14 B, J <0.361 <0.361 1.70 J 40.2 3.64 J 1.10 J <3.62 <0.361 <0.181 <0.181 280 3,500
Tetrahydrofuran 22.2 3,690 3,840 1,910 1,840 4,180 3,070 14,000 4,860 375 601 14,000 180,000
Toluene 15.1 59.7 60.4 7.19 9.77 28.7 4.37 8.14 J 6.63 4.12 5.04 35,000 440,000
Trichloroethene 0.999 J <0.398 <0.398 <0.199 <0.199 <0.398 <0.199 <3.98 <0.398 <0.199 <0.199 14 180
Trichlorofluoromethane 20.2 1.84 J 1.88 J 2.10 J 1.89 J 2.72 J 2.33 J <2.60 3.16 J 4.26 2.00 J NE NE
1,2,4-Trimethylbenzene 1.27 J 4.51 J 4.58 J 2.66 1.05 J 2.03 J 0.884 J <2.20 <0.220 0.511 J 0.535 J 420 5,300
1,3,5-Trimethylbenzene <0.236 1.86 J 1.78 J 0.771 J <0.236 <0.472 <0.236 <4.72 <0.472 <0.236 <0.236 420 5,300
Vinyl Chloride <0.127 <0.254 <0.254 <0.127 <0.127 <0.254 <0.127 <2.54 <0.254 <0.127 <0.127 5.6 280
m,p-Xylene 33.2 22.3 21.9 5.64 J 3.39 J 7.61 J 2.33 J <4.34 3.16 J 2.13 J 2.34 J 700 8,800
o-Xylene 9.09 6.30 6.62 1.90 J 1.09 J 2.26 J 0.599 J <3.14 <0.313 0.503 J 0.673 J 700 8,800
DEQ Risk Calculator (2)
Cumulative LICR ----
Cumulative HI ----
DEQ Risk Calculator (2)
Cumulative LICR 1.1 x 10-6 2.8 x 10-8
Cumulative HI 0.0089 0.0015
Notes:
1)North Carolina Department of Environmental Quality (NCDEQ) Vapor Intrusion Sub-Slab and Exterior Soil Gas Screening Levels (SGSLs) dated January 2023 and based on a TCR of 1 x 10-6 and a THQ of 0.2.
2)NCDEQ Risk Calculator dated January 2023.
EPA analytical method shown in parenthesis.
Compound concentrations are reported in micrograms per cubic meter (μg/m3).
Compound concentrations are reported to the laboratory method detection limit.
Only compounds detected in at least one sample and select chlorinated compounds are shown in the table above. Refer to laboratory analytical report for all compounds.
Worst case risk calculations include highest concentration of any compound detected in any sample.
Bold value indicates an exceedance of the Residential SGSL.
VOCs = volatile organic compounds; TCR = target cancer risk; THQ = target hazard quotient; LICR = lifetime incremental cancer risk; HI = noncarcinogenic hazard index; NE = not established; -- = not applicable
B = Analyte was detected in laboratory blank.
J = Detected concentration is above the laboratory method detection limit, but below the laboratory calibrated reporting limit resulting in a laboratory estimated value.
0.028 < 1.0
Worst Case Non-Residential - Soil Gas to Indoor Air Acceptable Risk Levels
9.4 x 10-7 < 1.0 x 10-4
Building 1
Acceptable Risk Levels
SS-MP-2 / SS-MP-DUP
Screening Criteria (1)
6/22/2023
Residential SGSLs Non-Residential SGSLs
< 1.0 x 10-4
< 1.00.36
1.2 x 10-5
Worst Case Residential - Soil Gas to Indoor Air
µg/m3
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Table 1 (Page 1 of 3)Hart & Hickman, PC
Table 2
Summary of Building 1 Indoor Air Analytical Results
Charlotte Van and Storage Co.
Charlotte, North Carolina
H&H Project No. LEN-008
Building ID Outdoor Air
Sample ID IAS-1 IAS-2 IAS-BKG
Sample Date
Units
VOCs (TO-15)
Acetone 458 39.2 387 360 21.3 NE NE
Benzene 0.836 B, J 0.559 B, J 0.721 J 0.690 B, J 0.485 B, J 0.36 1.6
Carbon Disulfide 0.909 B, J <0.060 1.18 J 0.688 B, J 0.295 B, J 150 610
Chloroform <0.086 0.854 J 0.786 J 0.800 J <0.086 0.12 0.53
Chloromethane 0.999 J 0.976 J 1.08 1.14 0.850 J 19 79
Dichlorodifluoromethane 2.65 18.1 2.43 J 2.59 2.59 21 88
Ethyl Acetate 1.20 J 0.428 J 2.55 3.09 <0.136 15 61
Ethylbenzene 2.26 0.369 J 3.07 3.23 <0.106 1.1 4.9
Heptane 7.48 0.762 J 5.45 5.36 <0.143 83 350
n-Hexane 2.65 0.764 J 1.85 2.04 <0.047 150 610
2-Hexanone 5.79 0.389 J 5.28 5.91 <0.285 6.3 26
Isopropyl Alcohol 56.5 6.94 134 122 2.09 J 42 180
Methyl Ethyl Ketone (MEK)30.0 3.81 41.1 43.9 2.08 1,000 4,400
4-Methyl-2-Pentanone 1.32 J <0.121 1.17 J 1.16 J <0.121 630 2,600
Methylene Chloride <0.488 0.562 J <0.488 <0.488 <0.488 100 530
Styrene 9.77 0.672 J 7.19 7.37 <0.124 210 880
Tetrachloroethene <0.181 <0.181 0.922 J 0.732 J <0.181 8.3 35
Tetrahydrofuran 17.3 0.693 J 20.6 21.7 <0.107 420 1,800
Toluene 57.0 4.17 B 57.3 57.1 1.02 B, J 1,000 4,400
Trichloroethene <0.199 <0.199 <0.199 <0.199 <0.199 0.42 1.8
Trichlorofluoromethane 1.73 J 35.4 1.54 J 1.57 J 1.52 J NE NE
1,2,4-Trimethylbenzene 4.42 2.40 J 3.80 5.05 <0.110 13 53
1,3,5-Trimethylbenzene 0.904 J <0.236 0.924 J 0.933 J <0.236 13 53
m,p-Xylene 8.34 1.92 J 13.2 13.7 <0.217 21 88
o-Xylene 2.58 0.377 J 3.92 4.07 <0.157 21 88
DEQ Risk Calculator (2)
Cumulative LICR --
Cumulative HI --
DEQ Risk Calculator (2)
Cumulative LICR --
Cumulative HI --
Notes:1) North Carolina Department of Environmental Quality (NCDEQ) Vapor Intrusion Indoor Air Screening Levels (IASLs) dated January 2023 and based on a TCR of 1 x 10-6 and a THQ of 0.2.
2) NCDEQ Risk Calculator dated January 2023.
EPA analytical method shown in parenthesis.
Compound concentrations are reported in micrograms per cubic meter (μg/m3).
Compound concentrations are reported to the laboratory method detection limit.
Building 1 indoor air samples were collected over approximately 24-hours.The indoor air samples were analyzed for select compounds determined by the sub-slab soil vapor results and previous assessment results. Results for the select compounds are shown in the ta Building 1 worst case risk calculations include the highest concentration of any compound detected in any indoor air sample.
Bold value indicates an exceedance of the Residential IASL or acceptable risk level.
Underline value indicates an exceedance of the Non-Residential IASL.
NE = not established; VOCs = volatile organic compounds; TCR = target cancer risk; THQ = target hazard quotient; LICR = lifetime incremental cancer risk; HI = noncarcinogenic hazard index
B = Analyte was detected in laboratory blank.
J = Detected concentration is above the laboratory method detection limit, but below the laboratory calibrated reporting limit resulting in a laboratory estimated value.
Worst Case Non-Residential - Indoor Air Acceptable Risk Levels
2.8 x 10-6 < 1.0 x 10-4
0.35 < 1.0
1.4 < 1.0
Building 1 Screening Criteria (1)
IAS-3 / IAS-DUP Residential IASLs Non-Residential
IASLs6/21/23 - 6/22/23
µg/m3
Worst Case Residential - Indoor Air Acceptable Risk Levels
1.2 x 10-5 < 1.0 x 10-4
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Table 2 (Page 2 of 3)
Hart & Hickman, PC
Table 3
Comparison of Sub-Slab Soil Vapor and Indoor Air Analytical Results
Building 1
Charlotte Van and Storage Co.
Charlotte, North Carolina
H&H Project No. LEN-008
Building ID
Sample ID SS-MP-3 SS-MP-6 IAS-1 SS-MP-8 IAS-2
Sample Date 6/22/2023 6/22/2023 6/21/23 - 6/22/23 6/22/2023 6/21/23 - 6/22/23
Units
VOCs (TO-15)
Acetone 118 387 360 96.0 458 93.1 39.2 NE NE NE NE
Benzene 0.396 J 0.721 J 0.690 B, J 0.287 J 0.836 B, J <0.146 0.559 B, J 12 160 0.36 1.6
Bromodichloromethane <0.150 <0.150 <0.150 <0.150 <0.150 1.23 J <0.150 2.5 33 0.076 0.33
Carbon Disulfide 1.60 J 1.18 J 0.688 B, J 0.965 J 0.909 B, J 0.741 J <0.060 4,900 61,000 150 610
Chloroform 22.1 0.786 J 0.800 J 40.2 <0.086 12.8 0.854 J 4.1 53 0.12 0.53
Chloromethane 0.877 J 1.08 1.14 <0.067 0.999 J 0.631 J 0.976 J 630 7,900 19 79
Dichlorodifluoromethane 2.64 2.43 J 2.59 2.37 J 2.65 2.99 J 18.1 700 8,800 21 88
1,2-Dichloropropane <0.205 <0.205 <0.205 2.16 J <0.205 <0.409 <0.205 25 330 0.76 3.3
Ethyl Acetate 3.15 2.55 3.09 2.21 1.2 J 1.83 J 0.428 J 490 6,100 15 61
Ethylbenzene 0.998 J 3.07 3.23 0.351 J 2.26 <0.211 0.369 J 37 490 1.1 4.9
4-Ethyltoluene 0.584 J <0.128 <0.128 <0.128 <0.128 <0.256 <0.128 NE NE NE NE
Heptane 0.368 J 5.45 5.36 0.864 J 7.48 <0.286 0.762 J 2,800 35,000 83 350
n-Hexane <0.047 1.85 2.04 0.271 J 2.65 <0.094 0.764 J 4,900 61,000 150 610
2-Hexanone <0.285 5.28 5.91 2.47 5.79 1.22 J 0.389 J 210 2,600 6.3 26
Isopropyl Alcohol 13.9 134 122 16.2 56.5 8.43 J 6.94 1,400 18,000 42 180
Methyl Ethyl Ketone (MEK)842 41.1 43.9 2,020 30 1,170 3.81 35,000 440,000 1,000 4,400
4-Methyl-2-Pentanone <0.121 1.17 J 1.16 J 0.696 J 1.32 J <0.242 <0.121 21,000 260,000 630 2,600
Methylene Chloride <0.488 <0.488 <0.488 <0.488 <0.488 <0.975 0.562 J 3,400 53,000 100 530
Naphthalene <0.183 <0.183 <0.183 4.15 <0.183 <0.365 <0.183 2.8 36 0.083 0.36
Styrene 0.796 J 7.19 7.37 1.19 J 9.77 <0.248 0.672 J 7,000 88,000 210 880
Tetrachloroethene 1.70 J 0.922 J 0.732 J 1.10 J <0.181 <0.361 <0.181 280 3,500 8.3 35
Tetrahydrofuran 1,910 20.6 21.7 3,070 17.3 4,860 0.693 J 14,000 180,000 420 1,800
Toluene 7.19 57.3 57.1 4.37 57.0 6.63 4.17 B 35,000 440,000 1,000 4,400
Trichloroethene <0.199 <0.199 <0.199 <0.199 <0.199 <0.398 <0.199 14 180 0.42 1.8
Trichlorofluoromethane 2.10 J 1.54 J 1.57 J 2.33 J 1.73 J 3.16 J 35.4 NE NE NE NE
1,2,4-Trimethylbenzene 2.66 3.8 5.05 0.884 J 4.42 <0.220 2.4 J 420 5,300 13 53
1,3,5-Trimethylbenzene 0.771 J 0.924 J 0.933 J <0.236 0.904 J <0.472 <0.236 420 5,300 13 53
m,p-Xylene 5.64 J 13.2 13.7 2.33 J 8.34 3.16 J 1.92 J 700 8,800 21 88
o-Xylene 1.90 J 3.92 4.07 0.599 J 2.58 <0.313 0.377 J 700 8,800 21 88
Notes:
1) North Carolina Department of Environmental Quality (NCDEQ) Vapor Intrusion Sub-Slab and Exterior Soil Gas Screening Levels (SGSLs) and Indoor Air Screening Levels (IASLs) dated January 2023 and based on a TCR of 1 x 10-6 and a THQ of 0.2.
EPA analytical method shown in parenthesis.
Compound concentrations are reported in micrograms per cubic meter (μg/m3).
Compound concentrations are reported to the laboratory method detection limit.
Only compounds detected in at least one sample and select chlorinated compounds are shown in the table above. Refer to laboratory analytical report for all compounds.
Bold value indicates an exceedance of the Residential SGSL or Residential IASL.
Underline value indicates an exceedance of the Non-Residential IASL.
VOCs = volatile organic compounds; TCR = target cancer risk; THQ = target hazard quotient; NE = not established
B = Analyte was detected in laboratory blank.
J = Detected concentration is above the laboratory method detection limit, but below the laboratory calibrated reporting limit resulting in a laboratory estimated value.
IAS-3 / IAS-DUP
6/21/23 - 6/22/23
Residential
SGSLs
Non-Residential
SGSLs
μg/m3
Residential IASLs Non-Residential
IASLs
Building 1 Screening Criteria (1)
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7/28/2023
Table 3 (Page 3 of 3)
Hart & Hickman, PC
USGS The National Map: National Boundaries Dataset, 3DEP Elevation
Program, Geographic Names Information System, National Hydrography
Dataset, National Land Cover Database, National Structures Dataset, and
National Transportation Dataset; USGS Global Ecosystems; U.S. Census
Bureau TIGER/Line data; USFS Road Data; Natural Earth Data; U.S.
Department of State Humanitarian Information Unit; and NOAA National
Centers for Environmental Information, U.S. Coastal Relief Model. Data
refreshed June, 2022.
SITE LOCATION MAP
CHARLOTTE VAN & STORAGE CO.
VERBENA STREET AND GILEAD STREET
CHARLOTTE, NORTH CAROLINA
DATE: 8-2-2023
JOB NO: LEN-008
REVISION NO: 0
FIGURE NO: 1
2923 South Tryon Street - Suite 100
Charlotte, North Carolina 28203
704-586-0007 (p) 704-586-0373 (f)
License # C-1269 / # C-245 Geology
TITLE
PROJECT
0 2,000 4,000
SCALE IN FEET
SITE
Path: S:\AAA-Master Projects\Lennar (LEN)\LEN-008 Verbena Assemblage\Final Grade Soil Sampling\Figures\Figure-1.mxdN
U.S.G.S. QUADRANGLE MAP
CHARLOTTE WEST, NORTH CAROLINA 2022
QUADRANGLE
7.5 MINUTE SERIES (TOPOGRAPHIC)
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
PARCEL BOUNDARY
BAKER CONSTRUCTION CO.
(129 VERBENA STREET)
VACANT COMMERCIAL BUILDING
(4516 NATIONS CROSSING ROAD)
VE
R
B
E
N
A

S
T
R
E
E
T
YEO
M
A
N
R
O
A
D
CH
A
L
M
E
R
S

S
T
R
E
E
T
UNDER CONSTRUCTION
RESIDENTIAL
LOWER LEFT BREWING CO.
(4528 NATIONS CROSSING ROAD)
NOTES:
1. AERIAL IMAGERY AND BASE DATA OBTAINED FROM
MECKLENBURG COUNTY GIS (2023).
PIEDMONT NATURAL GAS
(112-338 VERBENA STREET)
REVISION NO. 0
JOB NO. LEN-008
DATE: 8-2-2023
FIGURE NO. 2
CHARLOTTE VAN & STORAGE CO.
VERBENA STREET AND GILEAD STREET
CHARLOTTE, NORTH CAROLINA
SITE MAP
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 GeologyGILEAD STREETUNDER CONSTRUCTION
S:\AAA-Master Projects\Lennar (LEN)\LEN-008 Verbena Assemblage\Final Grade Soil Sampling\Figures\LEN.008_20221005.dwg, FIG 2, 5/17/2023 3:08:25 PM, shaynes

Appendix A

VIMS As-Built Drawings (VM-1, VM-2, VM-3 & VM-5)

DATEREVISIONS:DATE:PROJECT:125 N. Harrington St.Charlotte, NC 28203704/333-7272ClineDesignAssoc.comLMC, A LENNAR COMPANY
VERBENA STREET APARTMENTS
CHARLOTTE, NC
219025VAPOR MITIGATIONSPECIFICATIONSVM-1 1/16" = 1'-0"1VAPOR MITIGATION - SPECIFICATIONSVAPOR INTRUSION MITIGATION SYSTEM (VIMS) SPECIFICATIONS1.THIS VAPOR INTRUSION MITIGATION PLAN WAS INTENDED FOR DIRECTION OF VIMS COMPONENT INSTALLATION ONLY AND WAS NOT INTENDED TO GUIDE CONSTRUCTION OF STRUCTURAL COMPONENTS NOTRELATED TO THE VIMS. CONSTRUCTION CONTRACTOR WAS RESPONSIBLE FOR VERIFYING CONSISTENCY OF VIMS DETAILS WITH APPLICABLE STRUCTURAL, ARCHITECTURAL, MECHANICAL, AND PLUMBING PLANSAND RESOLVE INCONSISTENCIES WITH THE DESIGN ENGINEER PRIOR TO VIMS INSTALLATION. THE CONTRACTOR WAS RESPONSIBLE FOR INSTALLING THE VIMS IN ACCORDANCE WITH APPLICABLE BUILDINGCODES.2.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS WERE INSTRUCTED TO USE "LOW OR NO VOC" PRODUCTS AND MATERIALS (INCLUDING NO TETRACHLOROETHENE AND TRICHLOROETHENE), WHENPOSSIBLE.3.VIMS VAPOR LINER IS VAPORBLOCK PLUS 20 VAPOR BARRIER MANUFACTURED BY RAVEN INDUSTRIES, INC. THE VAPOR LINER WAS INSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER INSTALLATIONINSTRUCTIONS TO CREATE A CONTINUOUS LINER BELOW GROUND FLOOR SLABS. A BASE COURSE CONSISTING OF CLEAN #57 (OR SIMILAR HIGH PERMEABILITY STONE APPROVED BY THE ENGINEER) WASINSTALLED BENEATH THE VIMS VAPOR LINER. IN AREAS AROUND THE SUB-SLAB PIPING, THE BASE COURSE LAYER WAS INSTALLED TO COVER THE SUB-SLAB PIPING WITH A MINIMUM 1-INCH LAYER ABOVE ANDBELOW THE PIPING. IN AREAS WITHOUT PIPING, THE BASE COURSE WAS INSTALLED TO A MINIMUM OF 4 INCHES THICK.4.ALL PENETRATIONS WERE SEALED ACCORDING TO VAPOR LINER MANUFACTURER INSTALLATION INSTRUCTIONS AS FOUND IN THE MANUFACTURER INSTALLATION GUIDELINES., SMALL PUNCTURE HOLES WERESEALED WITH THE VAPORSEAL™TAPE, BUTYL SEALDOUBLE SIDED TAPE, POUR-N-SEAL™AND LARGER HOLES, TEARS, OR DAMAGE WERE REPAIRED USING A PATCH THAT OVERLAPS THE DAMAGED AREA ANDTHEN WAS TAPED ALONG THE SEAMS. IN AREAS WHERE UTILITY PENETRATIONS (I.E. PIPING, DUCTS, ETC) ARE PRESENT AND THE USE OF TAPING WAS NOT PRACTICAL OR DEEMED AS "INEFFECTIVE" BY THE DESIGNENGINEER, POUR-N-SEAL WAS POURED INTO FORM TO PATCH THE PENETRATION WITH AN AIRTIGHT SEAL.5.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS WERE INSTRUCTED AVOID THE USE OF TEMPORARY FORM BOARDS THAT PENETRATE THE VAPOR LINER WHERE POSSIBLE. WHERE TEMPORARY FORMBOARDS WERE USED, THE SIZE AND NUMBER OF PENETRATIONS THROUGH THE VAPOR LINER WAS LIMITED AND SMALL DIAMETER STAKES (I.E. SOLID METAL STAKES) WERE USED. AS FORM BOARDS WEREREMOVED, THE CONTRACTOR OR SUB-CONTRACTORS WERE INSTRUCTED TO SEAL PENETRATIONS IN ACCORDANCE WITH VAPOR LINER MANUFACTURER INSTALLATION INSTRUCTIONS.6.VIMS BELOW AND ABOVE GRADE PIPING WAS SLOPED A MINIMUM OF 18 UNIT VERTICAL IN 12 UNITS HORIZONTAL (1% SLOPE) TO GRAVITY DRAIN. SOLID SECTIONS OF HORIZONTAL COLLECTION PIPE WERESUPPORTED, AS NEEDED, TO PREVENT PIPE SAG OR LOW POINT AND MAINTAIN 1% SLOPE TOWARD SLOTTED SECTIONS TO DRAIN CONDENSATION. HORIZONTAL COLLECTION PIPE CONSISTS OF 3" SCH 40 PVC.SUB-SLAB SLOTTED VAPOR COLLECTION PIPE IS THREADED FLUSH JOINT OR GLUE JOINT 3" SCH 40 PVC PIPE WITH 0.020" SLOT WIDTH AND 18" SLOT SPACING. THE CONTRACTOR WAS RESPONSIBLE FOR INSTALLINGFOAM PIPE SLEEVES, OR SIMILAR, AROUND HORIZONTAL PORTIONS OF PIPES THAT PENETRATE CONCRETE FOOTERS AND WALLS PER APPLICABLE STRUCTURAL PLANS AND BUILDING CODES, OR AS OTHERWISEDIRECTED BY THE APPLICABLE PLANS AND CONSTRUCTION ENGINEERS. PIPE SLEEVES WERE SEALED TO PREVENT A PREFERENTIAL AIR PATHWAY FROM BELOW THE SLAB INTO THE BUILDING. PLEASE REFER TOSHEET S3.03 IN THE STRUCTURAL DRAWINGS FOR FOOTING DETAILS ADDRESSING VIMS PIPING.7.3" SCH 40 PVC RISER DUCT PIPING WAS INSTALLED TO CONNECT EACH SLAB PENETRATION LOCATION TO A ROOFTOP EXHAUST DISCHARGE POINT WITH A SYPHON VENTILATOR (SEE DETAIL #11). THECONTRACTOR WAS RESPONSIBLE FOR INSTALLING ABOVE-SLAB RISER DUCT PIPE RUNS BETWEEN THE SLAB PENETRATION AND THE ROOFTOP EXHAUST DISCHARGE PER APPLICABLE NORTH CAROLINA PLUMBINGAND BUILDING CODES AND AS SPECIFIED IN THE CONSTRUCTION DOCUMENTS AND DRAWINGS.8.RISER DUCT PIPING EXTENDS IN A VERTICAL ORIENTATION THROUGH THE BUILDING ROOF AND TERMINATES A MINIMUM OF 2 FT ABOVE THE BUILDING ROOF LINE. AN EMPIRE MODEL STAINLESS STEEL SYPHONVENTILATOR WAS INSTALLED ON THE EXHAUST DISCHARGE END OF EACH RISER DUCT PIPE. AN ADAPTOR COUPLINGWAS INSTALLED AT THE DISCHARGE END OF THE 3" RISER DUCT PIPE AND THE VENTILATORWAS SECURED TO THE PVC RISER IN A VERTICAL ORIENTATION. EXHAUST DISCHARGE LOCATIONS ARE MINIMUM OF 10 FT FROM ANY OPERABLE OPENING OR AIR INTAKE INTO THE BUILDING. AN ELECTRICALJUNCTION BOX (120V, 60Hz AC REQUIRED) WAS INSTALLED NEAR THE FAN LOCATION ON THE ROOFTOP FOR CONVERSION TO ELECTRIC FANS, IF REQUIRED. THE CONTRACTOR WAS RESPONSIBLE FOR INSTALLINGALL WIRING AND ELECTRICAL PER APPLICABLE BUILDING AND ELECTRICAL CODES..9.ABOVE-SLAB ACCESSIBLE RISER DUCT PIPING WAS PERMANENTLY IDENTIFIED BY MEANS OF A TAG OR STENCIL AT A MINIMUM OF ONCE EVERY 10-LINEAR FT WITH "VAPOR MITIGATION - CONTACT MAINTENANCE".THE SYPHON VENTILATOR WAS LABELED WITH "VAPOR MITIGATION SYSTEM - CONTACT MAINTENANCE IF DAMAGED".10.INSPECTIONS OF EACH COMPONENT OF THE VIMS WERE CONDUCTED BY THE ENGINEER, OR ENGINEER'S DESIGNEE, TO CONFIRM VIMS COMPONENTS WERE INSTALLED PER THE APPROVED DESIGN. THEINSPECTIONS INCLUDED: (1) INSPECTION OF SUB-SLAB PIPING LAYOUT AND GRAVEL PLACEMENT PRIOR TO INSTALLING VAPOR LINER; (2) INSPECTION OF VAPOR LINER PRIOR TO POURING CONCRETE; (3)INSPECTION OF ABOVE-GRADE PIPING LAYOUT; AND (4) INSPECTION OF FAN AND VENT PIPE CONNECTIONS.VAPOR MITIGATION PLAN PREPARED BY:2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologyJANUARY 12, 2023S:\AAA-Master Projects\Lennar (LEN)\LEN-008 Verbena Assemblage\VIMS Install Reports\Bld 1, CH, Maintenance\As-builts\vimp-R1-As-Built-12.13.22.dwg, VM-1, SVincent
VIMS VAPOR LINER AND BASE COURSE (TYP)1BASE COURSE - CLEAN #57 STONEMIN 4" THICK BENEATH VIMS VAPOR LINERVAPOR LINER (SEE SPECIFICATION #3)CONCRETE FLOOR SLABNTSVM2SUBBASEVIMS SLOTTED COLLECTION PIPE (TYP)23" SCH 40 THREADED FLUSH JOINTSLOTTED OR PERFORATED PVC PIPE SETWITHIN BASE COURSE - MIN THICKNESS TOCOVER PIPE WITH 1-INCH ABOVE AND BELOW(SEE SPECIFICATION #3 AND #6)VAPOR LINER (SEE SPECIFICATION #3)SUBBASENTSVM2SECTION THROUGH EXTERIOR WALLNTSVM2BRICK OR BUILDING SIDINGEXTERNAL WALL (NOTPRESENT AT ALL LOCATIONS)STUD WALLBASE COARSE(SEE SPECIFICATION #3)VAPOR LINER SEALED TO CONCRETE PERMANUFACTURER INSTRUCTIONS.SUBBASE3VAPOR LINER EXTENDS ALONGFOOTING EXTERIOR WHERE POSSIBLEAT LOCATIONS WHERE EXTERIORGRADE IS HIGHER THAN INTERIORGRADE4ANTSVM22" SCH 40 PVC 90 DEGREE ELBOWVAPOR LINER PENETRATION SEALED TOPIPE PER MANUFACTURER INSTRUCTIONS2" VENT SCREEN ATEND OF PIPEEXTERNAL/STUD WALL(NOT PRESENT IN ALLLOCATIONS)2" SOLID SCH 40 PVCVACUUM MEASURING POINTPOSITION VACUUMMONITORING POINT SO VENTSCREEN IS AT LEAST 5 FT FROMAN EXTERNAL WALL2' MINEXTERNAL/STUD WALL(NOT PRESENT IN ALLLOCATIONS)FLOOR CLEANOUT, ADJUSTABLE,4" DIA ZURN INDUSTRIESMODEL #CO2450-PV4 (OR ENGINEERAPPROVED EQUIVALENT)FLUSH WITHFINISHED FLOOR4BNTSVM22" SCH 40 PVC 90 DEGREE ELBOWVAPOR LINER PENETRATION SEALED TOPIPE PER MANUFACTURER INSTRUCTIONS2" VENT SCREEN ATEND OF PIPESTUD WALL(NOT PRESENT IN ALLLOCATIONS)VACUUM MEASURING POINT THROUGH THICKENED SLABFLOOR CLEANOUT, ADJUSTABLE,4" DIA ZURN INDUSTRIESMODEL #CO2450-PV4 (OR ENGINEERAPPROVED EQUIVALENT)FLUSH WITHFINISHED FLOOR2" SOLID SCH 40 PVC- INCLUDE PIPESLEEVES WHENAPPLICABLE; SEESPECIFICATION #6TYPICAL VIMS LINER AT ELEVATOR PIT9NTSVM2WATERPROOFING (SEESPECIFICATION #11)ELEVATOR SUMPCONTINUOUS VAPOR LINERSEALED PER MANUFACTURERINSTRUCTIONSVAPOR LINER SEALED TOWATERPROOFINGWATERPROOFING - POSTAPPLIEDGROUND FLOORINTERIOR SPACEBASEMENT LEVELHALLWAYSUB-BASECONCRETEFLOOR SLABBASE COURSE(SEE SPECIFICATION #3)VAPOR LINER(SEE SPECIFICATION #3)VAPOR LINER SEALED TO OUTSIDE OF CONCRETEAND WATERPROOFING/INSULATION (WHEREPRESENT) PER MANUFACTURER INSTRUCTIONS WATERPROOFING ANDRIGID INSULATIONDRAINSTUD/SHEARWALLVIMS AT RETAINING WALL10NTSVM2VIMS SYPHON VENTILATOR & EXHAUST (TYP)11VM2NTSELECTRICAL JUNCTION BOX FOR POTENTIALFUTURE VACUUM FAN (REFER TOSPECIFICATION #8) RISER DUCT PIPE THROUGH ROOFFLASHINGROOFTOP4" X3" HEAVYDUTY NO HUBCOUPLING4" SYPHON VENTILATOR (EMPIRE SYPHONVENTILATOR OR ENGINEER APPROVEDEQUIVALENT)VERTICAL RISER AT SLAB PENETRATION WITH 90 DEGREE ELBOWNTSVAPOR LINER PENETRATION SEALED TOPIPE PER MANUFACTURER INSTRUCTIONS3" SCH 40 PVC 90 DEGREE ELBOWSTUD WALL3" SCH 40 PVC RISER DUCT PIPE(SEE SPECIFICATION #8 & #9)BASE COARSE(SEE SPECIFICATION #3)SOLID 3" SCH 40 PVC TO SLOTTED 3" SCH 40PVC PIPE TRANSITION (SLIP COUPLINGOR THREADED JOINT)THICKENED SLAB MAY NOT BE PRESENT INALL LOCATIONS3" SOLID SCH 40 PVC(SEE SPECIFICATION #7)VM27VIMS VACUUM MEASURING POINT - DETAIL VIEWNTSVM25FINISHED FLOOR SLAB2" SCH 40 PVC SET WITHIN GRAVEL LAYER(SEE DETAILS 4A & 4B)2" DRAIN EXPANSION TEST PLUGBASE COURSE(SEE SPECIFICATION #3)FLOOR CLEANOUT, ADJUSTABLE, 4" DIA ZURNINDUSTRIES MODEL #CO2450-PV4 (ORENGINEER APPROVED EQUIVALENT) FLUSHWITH FINISHED FLOOR4" x 2" FLUSH REDUCERBUSHINGVAPOR BARRIER PENETRATION SEALED TOPIPE PER MANUFACTURER INSTRUCTIONS2" SCH 40 PVC 90 DEGREE STREET ELBOWVAPOR LINER PENETRATION SEALEDTO PIPE PER MANUFACTURERINSTRUCTIONSSTUD WALL(NOT PRESENT IN ALL LOCATIONS)VAPOR LINERBENEATHTHICKENED SLABHORIZONTAL PIPE THROUGH THICKENED SLABTOP OF THICKENEDSLAB TURNDOWNFIRE WALL (NOT PRESENTIN ALL LOCATIONS)3" SOLID SCH 40 PVC -INCLUDE PIPE SLEEVESWHEN APPLICABLE; SEESPECIFICATION #66VM2NTSVERTICAL RISER AT SLAB PENETRATION WITH TEENTSVAPOR LINER PENETRATION SEALED TOPIPE PER MANUFACTURER INSTRUCTIONS3" SCH 40 PVC 90 DEGREE TEESTUD WALL3" SCH 40 PVC RISER DUCT PIPE(SEE SPECIFICATION #8 & #9)SOLID TO SLOTTED 3" SCH 40PVC PIPE TRANSITION (SLIP COUPLINGOR THREADED JOINT)THICKENED SLAB MAY NOT BE PRESENT IN ALLLOCATIONS3" SOLID SCH 40 PVC(SEE SPECIFICATION #5)8VM2SOLID TO SLOTTED 3" SCH 40 PVC PIPETRANSITION (SLIP COUPLINGOR THREADED JOINT)BASE COURSEWALL (VARIES)PROVIDE LOCKABLEWEATHERPROOF ENCLOSUREON OUTSIDE OF HOUSE WALL(OR SIMILAR). AFFIX LABEL ATBOX WITH "VAPOR MITIGATIONSYSTEM". PLACE REMOVABLEPIPE PLUG AT END OF 2" PIPE.VAPOR LINER SEALED TOCONCRETE PERMANUFACTURERSINSTRUCTIONS2" SCH 40 PVC 90 DEGREE ELBOW2" SOLID SCH 40 PVC PIPEINSTALLER SHALL SECUREPIPE TO PREVENT MOVEMENTOR DAMAGE TO PIPE DURINGTHE CONCRETE POUREXTERIOR GRADE (VARIES)BASE COURSEVAPOR LINERSLEEVE THROUGH FOOTING. ENLARGEFOOTING PER STRUCTURAL DRAWINGSWHERE PIPES PENETRATE FOOTINGVENT PIPE PROTECTIONSCREENSLEEVE FOR FULL LENGTH OFPROJECTION WITH SLEEVE 2" LARGERDIAMETER THAN PIPEEXTERIOR PERMANENT VACUUM MEASURING POINT (TYP)4CNTSVM2SUB-BASEVAPOR BARRIER(SEE SPECIFICATION #1)CONCRETE FLOOR SLABBASE COURSE(SEE SPECIFICATION #1)VAPOR PINSAMPLING BARBSILICONE SLEEVEVAPOR PIN BRASSSAMPLING DEVICEVIMS MONITORING POINT VAPOR PIN (TYP)12NTSVM2DATEREVISIONS:DATE:PROJECT:125 N. Harrington St.Charlotte, NC 28203704/333-7272ClineDesignAssoc.comLMC, A LENNAR COMPANY
VERBENA STREET APARTMENTS
CHARLOTTE, NC
219025VAPOR MITIGATIONSECTION DETAILSAS-BUILTVM-22VIMS LAYOUT - SECTION DETAILSVAPOR MITIGATION PLAN PREPARED BY:2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologyJANUARY 12, 2023S:\AAA-Master Projects\Lennar (LEN)\LEN-008 Verbena Assemblage\VIMS Install Reports\Bld 1, CH, Maintenance\As-builts\vimp-R1-As-Built-12.13.22.dwg, VM-2, SVincent
2 HOUR FIRE BARRIER2 HOUR SHAFT WALL ENCLOSURE1 HOUR FIRE PARTITION2 HOUR FIRE WALLUNIT B21/A4.06UNIT B21/A4.06UNIT A11/A4.02UNIT S11/A4.01UNIT A11/A4.02UNIT A11/A4.02UNIT A11/A4.02UNIT A11/A4.02UNIT A31/A4.04UNIT A11/A4.02UNIT S11/A4.01UNIT B21/A4.06UNIT A11/A4.02UNIT A31/A4.04UNIT B11/A4.05UNIT S11/A4.01UNIT B11/A4.05UNIT B11/A4.05UNIT S11/A4.01UNIT B11/A4.05UNIT B11/A4.05UNIT A21/A4.03UNIT S11/A4.01UNIT A21/A4.0366'-0"242'-6 1/4"UNIT A11/A4.02UNIT A2 (TYPE A)1/A4.07ELEVSTAIR
101
STAIR102 MECHMETERCENTERMETERCENTERELECHOUSEPANELMETERCENTERTELECOMMDFCLOSETMECHTELELOBBYHOUSESTOR.75'-1 1/2"UNIT S11/A4.01UNIT S11/A4.01UNIT S11/A4.0160'-6"310'-0 1/4"127'-1"
203'-3"60'-4"DATEREVISIONS:DATE:PROJECT:125 N. Harrington St.Charlotte, NC 28203704/333-7272ClineDesignAssoc.comLMC, A LENNAR COMPANY
VERBENA STREET APARTMENTS
CHARLOTTE, NC
219025BLDG 01 GROUNDFLOOR SUB-SLABLAYOUT DESIGNVM-3KEY PLANRATED WALL LEGEND 1/16" = 1'-0"1BUILDING 01 - OVERALL GROUND FLOORBLDG 1BLDG 2CHE-6E-7E-2E-3E-8E-9E-4E-10E-5E-11E-12E-14E-131VM22VM22VM23VM23VM2VM24A4BVM24BVM26VM27VM27VM28VM28VM29VM2E-14BVM24BVM24BVM24BVM2VAPOR MITIGATION PLAN PREPARED BY:2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologySUB-SLAB SAMPLE LOCATIONSUB-SLAB SAMPLE LOCATIONSUB-SLAB SAMPLE LOCATION SUB-SLAB SAMPLE LOCATIONSUB-SLAB SAMPLE LOCATIONSUB-SLAB SAMPLE LOCATION2VM21VM2LEGENDEXTENT OF VAPOR BARRIER3" SCH 40 PVC SLOTTED PIPE3" SCH 40 PVC SOLID PIPEVERTICAL RISER (3" SCH 40 PVC PIPE) AND EXHAUST LOCATIONVACUUM MEASURING POINT (2" SCH 40 PVC WITH OPEN END)TEMPORARY VACUUM MEASURING POINT (2" SCH 40 PVC WITH OPEN END)INDOOR AIR SAMPLE LOCATIONBACKGROUND AIR SAMPLE LOCATIONF-1MP-8MP-9MP-7TMP-1MP-6TMP-2MP-5MP-4TMP-3MP-2MP-3TMP-4MP-10TMP-5IAS-2IAS-1IAS-3BAS-1JANUARY 12, 2023S:\AAA-Master Projects\Lennar (LEN)\LEN-008 Verbena Assemblage\VIMS Install Reports\Bld 1, CH, Maintenance\As-builts\vimp-R1-As-Built-12.13.22.dwg, VM-3, SVincent
2 HOUR FIRE BARRIER2 HOUR SHAFT WALL ENCLOSURE1 HOUR FIRE PARTITIONFDC10C11C09MAINTENANCE GARAGEMAINTENANCEE.W.BIKESTORAGESECURESTORAGE30" X 60" ATTICACCESS PANELABOVEHBCABINET STORAGEABOVE/BELOWCOUNTER TOP4'x8' PLYWOOD BLUEPRINTTABLE/FLEX SPACEC08DATEREVISIONS:DATE:PROJECT:125 N. Harrington St.Charlotte, NC 28203704/333-7272ClineDesignAssoc.comLMC, A LENNAR COMPANY
VERBENA STREET APARTMENTS
CHARLOTTE, NC
219025MAINTENANCE BLDGGROUND FLOORSUB-SLAB LAYOUTDESIGNVM-5KEY PLANRATED WALL LEGEND 1/16" = 1'-0"5MAINTENANCE BUILDINGBLDG 1BLDG 2CHLEGENDEXTENT OF VAPOR BARRIERSUB-SLAB MONITORING POINT (VAPOR PIN)1VM23VM212VM23VM2VAPOR MITIGATION PLAN PREPARED BY:2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologyJANUARY 12, 2023SUB-SLAB SAMPLE LOCATIONMP-1S:\AAA-Master Projects\Lennar (LEN)\LEN-008 Verbena Assemblage\VIMS Install Reports\Bld 1, CH, Maintenance\As-builts\vimp-R1-As-Built-12.13.22.dwg, VM-5, SVincent

Appendix B

Field Forms

INDOOR AIR BUILDING SURVEY
and SAMPLING FORM
Site Name: ____________________________________ DSCAID#: ______________________
Preparer’s name: ________________________________ Date: __________________________
Preparer’s affiliation: ____________________________ Phone #: _______________________
Part I - Occupants
Building Address: ____________________________________________________________________
Property Contact: _______________________________ Owner / Renter / other: ______________
Contact’s Phone: home ( )__________ work ( )______________ cell ( )____________
# of Building occupants: Children under age 13 _____ Children age 13-18 ______ Adults _____
Part II – Building Characteristics
Building type: residential / multi-family residential / office / strip mall / commercial / industrial
Describe building: ________________________________________ Year constructed: _________
Sensitive population: day care / nursing home / hospital / school / other (specify): _______________
Number of floors below grade: ______ (full basement / crawl space / slab on grade)
Number of floors at or above grade: ______
Depth of basement below grade surface: ______ ft. Basement size: _______ ft2
Basement floor construction: concrete / dirt / floating / stone / other (specify): ________________
Foundation walls: poured concrete / cinder blocks / stone / other (specify) ________________
Basement sump present? Yes / No Sump pump? Yes / No Water in sump? Yes / No
Type of heating system (circle all that apply):
hot air circulation hot air radiation wood steam radiation
heat pump hot water radiation kerosene heater electric baseboard
other (specify): ________________________
Type of ventilation system (circle all that apply):
central air conditioning mechanical fans bathroom ventilation fans
individual air conditioning units kitchen range hood fan outside air intake
other (specify): _________________
Type of fuel utilized (circle all that apply):
Natural gas / electric / fuel oil / wood / coal / solar / kerosene
Are the basement walls or floor sealed with waterproof paint or epoxy coatings? Yes / No
Verbena Street Apartments 23057-19-060
Ann Marie Lindley 6/22/23
Hat & Hickman, PC [phone]
2123 Verbena Street and 4607 & 4615 Gilead Street
Patrick Foster Development Manager
704 998-0367 410 842-5303
Apartment Building 2021-2022
NA
0
4
00
Is there a whole house fan? Yes / No
Septic system? Yes / Yes (but not used) / No
Irrigation/private well? Yes / Yes (but not used) / No
Type of ground cover outside of building: grass / concrete / asphalt / other (specify) _____________
Existing subsurface depressurization (radon) system in place? Yes / No active / passive
Sub-slab vapor/moisture barrier in place? Yes / No
Type of barrier: ____________________________
Part III - Outside Contaminant Sources
Other stationary sources nearby (gas stations, emission stacks, etc.): _____________________________
Heavy vehicular traffic nearby (or other mobile sources): ______________________________________
Part IV – Indoor Contaminant Sources
Identify all potential indoor sources found in the building (including attached garages), the location of the
source (floor and room), and whether the item was removed from the building 48 hours prior to indoor air
sampling event. Any ventilation implemented after removal of the items should be completed at least 24
hours prior to the commencement of the indoor air sampling event.
Potential Sources Location(s)Removed
(Yes / No / NA)
Gasoline storage cans
Gas-powered equipment
Kerosene storage cans
Paints / thinners / strippers
Cleaning solvents
Oven cleaners
Carpet / upholstery cleaners
Other house cleaning products
Moth balls
Polishes / waxes
Insecticides
Furniture / floor polish
Nail polish / polish remover
Hairspray
Cologne / perfume
Air fresheners
Fuel tank (inside building) NA
Wood stove or fireplace NA
New furniture / upholstery
New carpeting / flooring NA
Hobbies - glues, paints, etc.

VaporBlock 20-mil
natural gas station NE of Site
low to moderate consrtucion traffic
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Part V – Miscellaneous Items
Do any occupants of the building smoke? Yes / No How often? ______________
Last time someone smoked in the building? ____________ hours / days ago
Does the building have an attached garage directly connected to living space? Yes / No
If so, is a car usually parked in the garage? Yes / No
Are gas-powered equipment or cans of gasoline/fuels stored in the garage? Yes / No
Do the occupants of the building have their clothes dry cleaned? Yes / No
If yes, how often? weekly / monthly / 3-4 times a year
Do any of the occupants use solvents in work? Yes / No
If yes, what types of solvents are used? _______________________________________
If yes, are their clothes washed at work? Yes / No
Have any pesticides/herbicides been applied around the building or in the yard? Yes / No
If so, when and which chemicals? _________________________________________________
Has there ever been a fire in the building? Yes / No If yes, when? _____________
Has painting or staining been done in the building in the last 6 months? Yes / No
If yes, when __________________and where?____________________________
Part VI – Sampling Information
Sample Technician: ____________________________ Phone number: ( ) _______ - __________
Sample Source: Indoor Air / Crawlspace Air / Sub-Slab / Near Slab Soil Gas / Exterior Soil Gas
Sampler Type: Tedlar bag / Sorbent / Stainless Steel Canister / Other (specify): _________________
Analytical Method: TO-15 / TO-17 / other: _________ Cert. Laboratory: _________________
Sample locations (floor, room):
Field ID # _____ - ________________________ Field ID # _____ - __________________________
Field ID # _____ - ________________________ Field ID # _____ - __________________________
Were “Instructions for Occupants” followed? Yes / No
If not, describe modifications: __________________________________________________________
January 2023 leasing, residential units, & hallways
Ann Marie Lindley 919 606
Waypoint Analytical
IAS 1 IAS 3/DUP
IAS 2 IAS BKG
Provide Drawing of Sample Location(s) in Building
Part VII - Meteorological Conditions
Was there significant precipitation within 12 hours prior to (or during) the sampling event? Yes / No
Describe the general weather conditions: ___________________________________________________
_____________________________________________________________________________________
Part VIII – General Observations
Provide any information that may be pertinent to the sampling event and may assist in the data
interpretation process (e.g., observed that drycleaner operated with door or windows propped open for
ventilation).

(Adapted from the NJDEP Vapor Intrusion Guidance, October 2005)
60-70s, heavy rain and wind
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Appendix C

Laboratory Analytical Report

Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the
analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.

7/20/2023
Hart & Hickman (Charlotte) Shannon Switch
2923 South Tryon St. Ste 100 Charlotte, NC, 28203
Ref: Analytical Testing
Revised Lab Report Number: 23-177-0008 Client Project Description: LEN-008
Dear Shannon Switch:
Waypoint Analytical, LLC (Charlotte) received sample(s) on 6/26/2023 for the analyses presented in the
following report.
The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method.
The analytical data has been validated using standard quality control measures performed as required by the
analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136
Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time.
Refer to sample analysis time for confirmation of holding time compliance.
The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to
the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely,
Angela D Overcash Senior Project Manager
Page 1 of 100
Certification Summary
Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC
State Program Lab ID Expiration Date
07/31/202337735State ProgramNorth Carolina
12/31/2023402State ProgramNorth Carolina
07/31/202399012State ProgramSouth Carolina
12/31/202299012State ProgramSouth Carolina
Page 1 of 1 00016/23-177-0008
Page 2 of 100
Report Number:
Sample Summary Table
Client Project Description:
23-177-0008
LEN-008
Lab No Client Sample ID Matrix Date Collected Date Received
06/21/2023 11:02Air 99267 SS-MP-2 06/26/2023 13:57
06/22/2023Air 99268 SS-MP-DUP 06/26/2023 13:57
06/22/2023 16:41Air 99269 SS-MP-7 06/26/2023 13:57
06/22/2023 11:42Air 99270 SS-MP-3 06/26/2023 13:57
06/22/2023 13:28Air 99271 SS-MP-4 06/26/2023 13:57
06/22/2023 14:11Air 99272 SS-MP-6 06/26/2023 13:57
06/22/2023 10:04Air 99273 SS-MP-10 06/26/2023 13:57
06/22/2023 15:35Air 99274 SS-MP-8 06/26/2023 13:57
06/22/2023 13:04Air 99275 SS-MP-5 06/26/2023 13:57
06/22/2023 14:58Air 99276 SS-MP-9 06/26/2023 13:57
06/22/2023 09:20Air 99277 SS-MP-1 06/26/2023 13:57
06/21/2023 08:23Air 99278 IAS-3 06/26/2023 13:57
06/21/2023Air 99279 IAS-DUP 06/26/2023 13:57
06/21/2023 08:24Air 99280 IAS-1 06/26/2023 13:57
06/21/2023 08:25Air 99281 IAS-BKG 06/26/2023 13:57
06/21/2023 08:25Air 99282 IAS-2 06/26/2023 13:57
Page 3 of 100
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-177-0008
Report Limit
Project:LEN-008
V 99267SS-MP-2
249 06/28/2023 22:01TO-15 Acetone µg/m3 10.1
J0.875 06/29/2023 06:05TO-15 Benzene µg/m3 0.146
J1.49 06/29/2023 06:05TO-15 Carbon Disulfide µg/m3 0.122
J2.97 06/29/2023 06:05TO-15 Chloroform µg/m3 0.172
2.14 06/29/2023 06:05TO-15 Chloromethane µg/m3 0.134
J2.73 06/29/2023 06:05TO-15 Dichlorodifluoromethane µg/m3 0.267
J2.83 06/29/2023 06:05TO-15 Ethyl Acetate µg/m3 0.271
4.57 06/29/2023 06:05TO-15 Ethylbenzene µg/m3 0.211
J1.14 06/29/2023 06:05TO-15 4-Ethyltoluene µg/m3 0.256
J2.48 06/29/2023 06:05TO-15 Heptane µg/m3 0.286
J1.10 06/29/2023 06:05TO-15 n-Hexane µg/m3 0.094
J1.98 06/29/2023 06:05TO-15 2-Hexanone µg/m3 0.570
30.4 06/29/2023 06:05TO-15 Isopropyl Alcohol µg/m3 0.277
295 06/29/2023 06:05TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.448
J1.05 06/29/2023 06:05TO-15 4-Methyl-2-Pentanone µg/m3 0.242
J1.76 06/29/2023 06:05TO-15 Styrene µg/m3 0.248
3690 06/28/2023 22:01TO-15 Tetrahydrofuran µg/m3 5.35
59.7 06/29/2023 06:05TO-15 Toluene µg/m3 0.180
J1.84 06/29/2023 06:05TO-15 Trichlorofluoromethane µg/m3 0.260
J4.51 06/29/2023 06:05TO-15 1,2,4-Trimethylbenzene µg/m3 0.220
J1.86 06/29/2023 06:05TO-15 1,3,5-Trimethylbenzene µg/m3 0.472
6.30 06/29/2023 06:05TO-15 o-Xylene µg/m3 0.313
22.3 06/29/2023 06:05TO-15 m,p-Xylene µg/m3 0.434
28.6 06/29/2023 06:05TO-15 Xylene (Total)µg/m3 0.313
V 99268SS-MP-DUP
252 06/28/2023 22:37TO-15 Acetone µg/m3 10.1
J1.06 06/29/2023 06:49TO-15 Benzene µg/m3 0.146
J2.50 06/29/2023 06:49TO-15 Carbon Disulfide µg/m3 0.122
J2.97 06/29/2023 06:49TO-15 Chloroform µg/m3 0.172
J2.75 06/29/2023 06:49TO-15 Dichlorodifluoromethane µg/m3 0.267
3.79 06/29/2023 06:49TO-15 Ethyl Acetate µg/m3 0.271
4.49 06/29/2023 06:49TO-15 Ethylbenzene µg/m3 0.211
J1.03 06/29/2023 06:49TO-15 4-Ethyltoluene µg/m3 0.256
J2.64 06/29/2023 06:49TO-15 Heptane µg/m3 0.286
J1.21 06/29/2023 06:49TO-15 n-Hexane µg/m3 0.094
J1.87 06/29/2023 06:49TO-15 2-Hexanone µg/m3 0.570
Page 4 of 100
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-177-0008
Report Limit
Project:LEN-008
V 99268SS-MP-DUP
31.9 06/29/2023 06:49TO-15 Isopropyl Alcohol µg/m3 0.277
253 06/28/2023 22:37TO-15 Methyl Ethyl Ketone (MEK)µg/m3 11.2
J0.950 06/29/2023 06:49TO-15 4-Methyl-2-Pentanone µg/m3 0.242
J1.89 06/29/2023 06:49TO-15 Styrene µg/m3 0.248
3840 06/28/2023 22:37TO-15 Tetrahydrofuran µg/m3 5.35
60.4 06/29/2023 06:49TO-15 Toluene µg/m3 0.180
J1.88 06/29/2023 06:49TO-15 Trichlorofluoromethane µg/m3 0.260
J4.58 06/29/2023 06:49TO-15 1,2,4-Trimethylbenzene µg/m3 0.220
J1.78 06/29/2023 06:49TO-15 1,3,5-Trimethylbenzene µg/m3 0.472
6.62 06/29/2023 06:49TO-15 o-Xylene µg/m3 0.313
21.9 06/29/2023 06:49TO-15 m,p-Xylene µg/m3 0.434
28.5 06/29/2023 06:49TO-15 Xylene (Total)µg/m3 0.313
V 99269SS-MP-7
5970 06/28/2023 23:14TO-15 Acetone µg/m3 40.4
J4.61 06/27/2023 22:27TO-15 Carbon Disulfide µg/m3 1.22
J7.62 06/27/2023 22:27TO-15 Chloroform µg/m3 1.73
J21.6 06/27/2023 22:27TO-15 Isopropyl Alcohol µg/m3 2.78
630 06/27/2023 22:27TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48
14000 06/28/2023 23:14TO-15 Tetrahydrofuran µg/m3 21.4
J8.14 06/27/2023 22:27TO-15 Toluene µg/m3 1.80
V 99270SS-MP-3
118 06/29/2023 00:08TO-15 Acetone µg/m3 0.202
J0.396 06/29/2023 00:08TO-15 Benzene µg/m3 0.073
J1.60 06/29/2023 00:08TO-15 Carbon Disulfide µg/m3 0.060
22.1 06/29/2023 00:08TO-15 Chloroform µg/m3 0.086
J0.877 06/29/2023 00:08TO-15 Chloromethane µg/m3 0.067
2.64 06/29/2023 00:08TO-15 Dichlorodifluoromethane µg/m3 0.134
3.15 06/29/2023 00:08TO-15 Ethyl Acetate µg/m3 0.136
J0.998 06/29/2023 00:08TO-15 Ethylbenzene µg/m3 0.106
J0.584 06/29/2023 00:08TO-15 4-Ethyltoluene µg/m3 0.128
J0.368 06/29/2023 00:08TO-15 Heptane µg/m3 0.143
13.9 06/29/2023 00:08TO-15 Isopropyl Alcohol µg/m3 0.139
842 06/27/2023 23:04TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48
J0.796 06/29/2023 00:08TO-15 Styrene µg/m3 0.124
J1.70 06/29/2023 00:08TO-15 Tetrachloroethene µg/m3 0.181
1910 06/27/2023 23:04TO-15 Tetrahydrofuran µg/m3 2.14
Page 5 of 100
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-177-0008
Report Limit
Project:LEN-008
V 99270SS-MP-3
7.19 06/29/2023 00:08TO-15 Toluene µg/m3 0.090
J2.10 06/29/2023 00:08TO-15 Trichlorofluoromethane µg/m3 0.130
2.66 06/29/2023 00:08TO-15 1,2,4-Trimethylbenzene µg/m3 0.110
J0.771 06/29/2023 00:08TO-15 1,3,5-Trimethylbenzene µg/m3 0.236
J1.90 06/29/2023 00:08TO-15 o-Xylene µg/m3 0.157
J5.64 06/29/2023 00:08TO-15 m,p-Xylene µg/m3 0.217
J7.54 06/29/2023 00:08TO-15 Xylene (Total)µg/m3 0.157
V 99271SS-MP-4
134 06/27/2023 23:41TO-15 Acetone µg/m3 4.04
J0.373 06/29/2023 00:58TO-15 Benzene µg/m3 0.073
J0.971 06/29/2023 00:58TO-15 Carbon Disulfide µg/m3 0.060
9.83 06/29/2023 00:58TO-15 Chloroform µg/m3 0.086
J2.36 06/29/2023 00:58TO-15 Cyclohexane µg/m3 0.161
J2.45 06/29/2023 00:58TO-15 Dichlorodifluoromethane µg/m3 0.134
J0.799 06/29/2023 00:58TO-15 Ethyl Acetate µg/m3 0.136
J0.694 06/29/2023 00:58TO-15 Ethylbenzene µg/m3 0.106
J0.704 06/29/2023 00:58TO-15 Heptane µg/m3 0.143
J1.34 06/29/2023 00:58TO-15 2-Hexanone µg/m3 0.285
22.3 06/29/2023 00:58TO-15 Isopropyl Alcohol µg/m3 0.139
1160 06/27/2023 23:41TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48
J0.512 06/29/2023 00:58TO-15 4-Methyl-2-Pentanone µg/m3 0.121
2.28 06/29/2023 00:58TO-15 Styrene µg/m3 0.124
40.2 06/29/2023 00:58TO-15 Tetrachloroethene µg/m3 0.181
1840 06/27/2023 23:41TO-15 Tetrahydrofuran µg/m3 2.14
9.77 06/29/2023 00:58TO-15 Toluene µg/m3 0.090
J1.89 06/29/2023 00:58TO-15 Trichlorofluoromethane µg/m3 0.130
J1.05 06/29/2023 00:58TO-15 1,2,4-Trimethylbenzene µg/m3 0.110
J1.09 06/29/2023 00:58TO-15 o-Xylene µg/m3 0.157
J3.39 06/29/2023 00:58TO-15 m,p-Xylene µg/m3 0.217
J4.48 06/29/2023 00:58TO-15 Xylene (Total)µg/m3 0.157
V 99272SS-MP-6
96.0 06/29/2023 07:42TO-15 Acetone µg/m3 0.202
J0.287 06/29/2023 07:42TO-15 Benzene µg/m3 0.073
J0.965 06/29/2023 07:42TO-15 Carbon Disulfide µg/m3 0.060
40.2 06/29/2023 07:42TO-15 Chloroform µg/m3 0.086
J2.37 06/29/2023 07:42TO-15 Dichlorodifluoromethane µg/m3 0.134
Page 6 of 100
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-177-0008
Report Limit
Project:LEN-008
V 99272SS-MP-6
J2.16 06/29/2023 07:42TO-15 1,2-Dichloropropane µg/m3 0.205
2.21 06/29/2023 07:42TO-15 Ethyl Acetate µg/m3 0.136
J0.351 06/29/2023 07:42TO-15 Ethylbenzene µg/m3 0.106
J0.864 06/29/2023 07:42TO-15 Heptane µg/m3 0.143
J0.271 06/29/2023 07:42TO-15 n-Hexane µg/m3 0.047
2.47 06/29/2023 07:42TO-15 2-Hexanone µg/m3 0.285
16.2 06/29/2023 07:42TO-15 Isopropyl Alcohol µg/m3 0.139
2020 06/29/2023 01:34TO-15 Methyl Ethyl Ketone (MEK)µg/m3 11.2
J0.696 06/29/2023 07:42TO-15 4-Methyl-2-Pentanone µg/m3 0.121
4.15 06/29/2023 07:42TO-15 Naphthalene µg/m3 0.183
J1.19 06/29/2023 07:42TO-15 Styrene µg/m3 0.124
J1.10 06/29/2023 07:42TO-15 Tetrachloroethene µg/m3 0.181
3070 06/29/2023 01:34TO-15 Tetrahydrofuran µg/m3 5.35
4.37 06/29/2023 07:42TO-15 Toluene µg/m3 0.090
J2.33 06/29/2023 07:42TO-15 Trichlorofluoromethane µg/m3 0.130
J0.884 06/29/2023 07:42TO-15 1,2,4-Trimethylbenzene µg/m3 0.110
J0.599 06/29/2023 07:42TO-15 o-Xylene µg/m3 0.157
J2.33 06/29/2023 07:42TO-15 m,p-Xylene µg/m3 0.217
J2.93 06/29/2023 07:42TO-15 Xylene (Total)µg/m3 0.157
V 99273SS-MP-10
76.0 06/29/2023 02:27TO-15 Acetone µg/m3 0.202
J0.759 06/29/2023 02:27TO-15 Carbon Disulfide µg/m3 0.060
J1.43 06/29/2023 02:27TO-15 Chloroform µg/m3 0.086
2.57 06/29/2023 02:27TO-15 Dichlorodifluoromethane µg/m3 0.134
14.8 06/29/2023 02:27TO-15 Ethyl Acetate µg/m3 0.136
J0.534 06/29/2023 02:27TO-15 Ethylbenzene µg/m3 0.106
J0.356 06/29/2023 02:27TO-15 Heptane µg/m3 0.143
J0.437 06/29/2023 02:27TO-15 n-Hexane µg/m3 0.047
J3.48 06/29/2023 02:27TO-15 Isopropyl Alcohol µg/m3 0.139
274 06/28/2023 00:55TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48
601 06/28/2023 00:55TO-15 Tetrahydrofuran µg/m3 2.14
5.04 06/29/2023 02:27TO-15 Toluene µg/m3 0.090
J2.00 06/29/2023 02:27TO-15 Trichlorofluoromethane µg/m3 0.130
J0.535 06/29/2023 02:27TO-15 1,2,4-Trimethylbenzene µg/m3 0.110
J0.673 06/29/2023 02:27TO-15 o-Xylene µg/m3 0.157
J2.34 06/29/2023 02:27TO-15 m,p-Xylene µg/m3 0.217
Page 7 of 100
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-177-0008
Report Limit
Project:LEN-008
V 99273SS-MP-10
J3.01 06/29/2023 02:27TO-15 Xylene (Total)µg/m3 0.157
V 99274SS-MP-8
93.1 06/29/2023 13:35TO-15 Acetone µg/m3 0.404
J1.23 06/29/2023 13:35TO-15 Bromodichloromethane µg/m3 0.299
J0.741 06/29/2023 13:35TO-15 Carbon Disulfide µg/m3 0.122
12.8 06/29/2023 13:35TO-15 Chloroform µg/m3 0.172
J0.631 06/29/2023 13:35TO-15 Chloromethane µg/m3 0.134
J2.99 06/29/2023 13:35TO-15 Dichlorodifluoromethane µg/m3 0.267
J1.83 06/29/2023 13:35TO-15 Ethyl Acetate µg/m3 0.271
J1.22 06/29/2023 13:35TO-15 2-Hexanone µg/m3 0.570
J8.43 06/29/2023 13:35TO-15 Isopropyl Alcohol µg/m3 0.277
1170 06/29/2023 03:04TO-15 Methyl Ethyl Ketone (MEK)µg/m3 11.2
4860 06/29/2023 03:04TO-15 Tetrahydrofuran µg/m3 5.35
6.63 06/29/2023 13:35TO-15 Toluene µg/m3 0.180
J3.16 06/29/2023 13:35TO-15 Trichlorofluoromethane µg/m3 0.260
J3.16 06/29/2023 13:35TO-15 m,p-Xylene µg/m3 0.434
J3.16 06/29/2023 13:35TO-15 Xylene (Total)µg/m3 0.313
V 99275SS-MP-5
763 06/29/2023 03:40TO-15 Acetone µg/m3 10.1
J0.523 06/29/2023 14:19TO-15 Benzene µg/m3 0.146
J1.25 06/29/2023 14:19TO-15 Carbon Disulfide µg/m3 0.122
22.5 06/29/2023 14:19TO-15 Chloroform µg/m3 0.172
J1.65 06/29/2023 14:19TO-15 Chloromethane µg/m3 0.134
J2.54 06/29/2023 14:19TO-15 Dichlorodifluoromethane µg/m3 0.267
J1.53 06/29/2023 14:19TO-15 Ethylbenzene µg/m3 0.211
J1.12 06/29/2023 14:19TO-15 Heptane µg/m3 0.286
5.75 06/29/2023 14:19TO-15 2-Hexanone µg/m3 0.570
103 06/29/2023 14:19TO-15 Isopropyl Alcohol µg/m3 0.277
3780 06/29/2023 03:40TO-15 Methyl Ethyl Ketone (MEK)µg/m3 11.2
J1.45 06/29/2023 14:19TO-15 4-Methyl-2-Pentanone µg/m3 0.242
5.95 06/29/2023 14:19TO-15 Styrene µg/m3 0.248
J3.64 06/29/2023 14:19TO-15 Tetrachloroethene µg/m3 0.361
4180 06/29/2023 03:40TO-15 Tetrahydrofuran µg/m3 5.35
28.7 06/29/2023 14:19TO-15 Toluene µg/m3 0.180
J2.72 06/29/2023 14:19TO-15 Trichlorofluoromethane µg/m3 0.260
J2.03 06/29/2023 14:19TO-15 1,2,4-Trimethylbenzene µg/m3 0.220
Page 8 of 100
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-177-0008
Report Limit
Project:LEN-008
V 99275SS-MP-5
J2.26 06/29/2023 14:19TO-15 o-Xylene µg/m3 0.313
J7.61 06/29/2023 14:19TO-15 m,p-Xylene µg/m3 0.434
J9.87 06/29/2023 14:19TO-15 Xylene (Total)µg/m3 0.313
V 99276SS-MP-9
38.8 06/29/2023 04:32TO-15 Acetone µg/m3 0.202
J0.696 06/29/2023 04:32TO-15 Benzene µg/m3 0.073
J1.39 06/29/2023 04:32TO-15 Bromodichloromethane µg/m3 0.150
J1.26 06/29/2023 04:32TO-15 Carbon Disulfide µg/m3 0.060
26.7 06/29/2023 04:32TO-15 Chloroform µg/m3 0.086
J1.92 06/29/2023 04:32TO-15 Cyclohexane µg/m3 0.161
3.14 06/29/2023 04:32TO-15 Dichlorodifluoromethane µg/m3 0.134
J0.563 06/29/2023 04:32TO-15 1,2-Dichloropropane µg/m3 0.205
1.92 06/29/2023 04:32TO-15 Ethyl Acetate µg/m3 0.136
J0.325 06/29/2023 04:32TO-15 Ethylbenzene µg/m3 0.106
J0.651 06/29/2023 04:32TO-15 Heptane µg/m3 0.143
J1.67 06/29/2023 04:32TO-15 n-Hexane µg/m3 0.047
7.90 06/29/2023 04:32TO-15 Isopropyl Alcohol µg/m3 0.139
141 06/28/2023 02:45TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48
J0.331 06/29/2023 04:32TO-15 4-Methyl-2-Pentanone µg/m3 0.121
4.93 06/29/2023 04:32TO-15 Methylene Chloride µg/m3 0.488
375 06/28/2023 02:45TO-15 Tetrahydrofuran µg/m3 2.14
4.12 06/29/2023 04:32TO-15 Toluene µg/m3 0.090
4.26 06/29/2023 04:32TO-15 Trichlorofluoromethane µg/m3 0.130
J0.511 06/29/2023 04:32TO-15 1,2,4-Trimethylbenzene µg/m3 0.110
J0.503 06/29/2023 04:32TO-15 o-Xylene µg/m3 0.157
J2.13 06/29/2023 04:32TO-15 m,p-Xylene µg/m3 0.217
J2.63 06/29/2023 04:32TO-15 Xylene (Total)µg/m3 0.157
V 99277SS-MP-1
46.5 06/30/2023 14:29TO-15 Acetone µg/m3 0.202
3.56 06/30/2023 14:29TO-15 Benzene µg/m3 0.073
J2.54 06/30/2023 14:29TO-15 Carbon Disulfide µg/m3 0.060
51.3 06/30/2023 14:29TO-15 Chloroform µg/m3 0.086
J3.19 06/30/2023 14:29TO-15 Cyclohexane µg/m3 0.161
J1.02 06/30/2023 14:29TO-15 1,4-Dichlorobenzene µg/m3 0.186
4.47 06/30/2023 14:29TO-15 cis-1,2-Dichloroethene µg/m3 0.095
2.45 06/30/2023 14:29TO-15 1,2-Dichloropropane µg/m3 0.205
Page 9 of 100
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-177-0008
Report Limit
Project:LEN-008
V 99277SS-MP-1
58.5 06/30/2023 14:29TO-15 1,2-Dichlorotetrafluoroethane µg/m3 0.622
24.7 06/30/2023 14:29TO-15 Ethylbenzene µg/m3 0.106
J0.848 06/30/2023 14:29TO-15 Heptane µg/m3 0.143
2.07 06/30/2023 14:29TO-15 n-Hexane µg/m3 0.047
289 06/29/2023 23:33TO-15 Isopropyl Alcohol µg/m3 2.78
1.76 06/30/2023 14:29TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224
J0.407 06/30/2023 14:29TO-15 Methyl tert-butyl ether (MTBE)µg/m3 0.033
J0.356 06/30/2023 14:29TO-15 4-Methyl-2-Pentanone µg/m3 0.121
3.84 06/30/2023 14:29TO-15 Methylene Chloride µg/m3 0.488
4.60 06/30/2023 14:29TO-15 Styrene µg/m3 0.124
JB3.14 06/30/2023 14:29TO-15 Tetrachloroethene µg/m3 0.181
22.2 06/30/2023 14:29TO-15 Tetrahydrofuran µg/m3 0.107
15.1 06/30/2023 14:29TO-15 Toluene µg/m3 0.090
J0.999 06/30/2023 14:29TO-15 Trichloroethene µg/m3 0.199
20.2 06/30/2023 14:29TO-15 Trichlorofluoromethane µg/m3 0.130
J1.27 06/30/2023 14:29TO-15 1,2,4-Trimethylbenzene µg/m3 0.110
9.09 06/30/2023 14:29TO-15 o-Xylene µg/m3 0.157
33.2 06/30/2023 14:29TO-15 m,p-Xylene µg/m3 0.217
42.3 06/30/2023 14:29TO-15 Xylene (Total)µg/m3 0.157
V 99278IAS-3
387 07/11/2023 11:24TO-15 Acetone µg/m3 4.04
J0.721 06/30/2023 00:22TO-15 Benzene µg/m3 0.073
J1.18 06/30/2023 00:22TO-15 Carbon Disulfide µg/m3 0.060
J0.786 06/30/2023 00:22TO-15 Chloroform µg/m3 0.086
1.08 06/30/2023 00:22TO-15 Chloromethane µg/m3 0.067
J2.43 06/30/2023 00:22TO-15 Dichlorodifluoromethane µg/m3 0.134
2.55 06/30/2023 00:22TO-15 Ethyl Acetate µg/m3 0.136
3.07 06/30/2023 00:22TO-15 Ethylbenzene µg/m3 0.106
5.45 06/30/2023 00:22TO-15 Heptane µg/m3 0.143
1.85 06/30/2023 00:22TO-15 n-Hexane µg/m3 0.047
5.28 06/30/2023 00:22TO-15 2-Hexanone µg/m3 0.285
134 07/11/2023 11:24TO-15 Isopropyl Alcohol µg/m3 2.78
41.1 06/30/2023 00:22TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224
J1.17 06/30/2023 00:22TO-15 4-Methyl-2-Pentanone µg/m3 0.121
7.19 06/30/2023 00:22TO-15 Styrene µg/m3 0.124
J0.922 06/30/2023 00:22TO-15 Tetrachloroethene µg/m3 0.181
Page 10 of 100
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-177-0008
Report Limit
Project:LEN-008
V 99278IAS-3
20.6 06/30/2023 00:22TO-15 Tetrahydrofuran µg/m3 0.107
57.3 06/30/2023 00:22TO-15 Toluene µg/m3 0.090
J1.54 06/30/2023 00:22TO-15 Trichlorofluoromethane µg/m3 0.130
3.80 06/30/2023 00:22TO-15 1,2,4-Trimethylbenzene µg/m3 0.110
J0.924 06/30/2023 00:22TO-15 1,3,5-Trimethylbenzene µg/m3 0.236
3.92 06/30/2023 00:22TO-15 o-Xylene µg/m3 0.157
13.2 06/30/2023 00:22TO-15 m,p-Xylene µg/m3 0.217
17.1 06/30/2023 00:22TO-15 Xylene (Total)µg/m3 0.157
V 99279IAS-DUP
360 07/11/2023 12:00TO-15 Acetone µg/m3 4.04
JB0.690 07/06/2023 22:28TO-15 Benzene µg/m3 0.073
JB0.688 07/06/2023 22:28TO-15 Carbon Disulfide µg/m3 0.060
J0.800 07/06/2023 22:28TO-15 Chloroform µg/m3 0.086
1.14 07/06/2023 22:28TO-15 Chloromethane µg/m3 0.067
2.59 07/06/2023 22:28TO-15 Dichlorodifluoromethane µg/m3 0.134
3.09 07/06/2023 22:28TO-15 Ethyl Acetate µg/m3 0.136
3.23 07/06/2023 22:28TO-15 Ethylbenzene µg/m3 0.106
5.36 07/06/2023 22:28TO-15 Heptane µg/m3 0.143
2.04 07/06/2023 22:28TO-15 n-Hexane µg/m3 0.047
5.91 07/06/2023 22:28TO-15 2-Hexanone µg/m3 0.285
122 07/11/2023 12:00TO-15 Isopropyl Alcohol µg/m3 2.78
43.9 07/06/2023 22:28TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224
J1.16 07/06/2023 22:28TO-15 4-Methyl-2-Pentanone µg/m3 0.121
7.37 07/06/2023 22:28TO-15 Styrene µg/m3 0.124
J0.732 07/06/2023 22:28TO-15 Tetrachloroethene µg/m3 0.181
21.7 07/06/2023 22:28TO-15 Tetrahydrofuran µg/m3 0.107
57.1 07/06/2023 22:28TO-15 Toluene µg/m3 0.090
J1.57 07/06/2023 22:28TO-15 Trichlorofluoromethane µg/m3 0.130
5.05 07/06/2023 22:28TO-15 1,2,4-Trimethylbenzene µg/m3 0.110
J0.933 07/06/2023 22:28TO-15 1,3,5-Trimethylbenzene µg/m3 0.236
4.07 07/06/2023 22:28TO-15 o-Xylene µg/m3 0.157
13.7 07/06/2023 22:28TO-15 m,p-Xylene µg/m3 0.217
17.8 07/06/2023 22:28TO-15 Xylene (Total)µg/m3 0.157
V 99280IAS-1
458 07/11/2023 12:36TO-15 Acetone µg/m3 4.04
JB0.836 07/06/2023 23:19TO-15 Benzene µg/m3 0.073
Page 11 of 100
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-177-0008
Report Limit
Project:LEN-008
V 99280IAS-1
JB0.909 07/06/2023 23:19TO-15 Carbon Disulfide µg/m3 0.060
J0.999 07/06/2023 23:19TO-15 Chloromethane µg/m3 0.067
2.65 07/06/2023 23:19TO-15 Dichlorodifluoromethane µg/m3 0.134
J1.20 07/06/2023 23:19TO-15 Ethyl Acetate µg/m3 0.136
2.26 07/06/2023 23:19TO-15 Ethylbenzene µg/m3 0.106
7.48 07/06/2023 23:19TO-15 Heptane µg/m3 0.143
2.65 07/06/2023 23:19TO-15 n-Hexane µg/m3 0.047
5.79 07/06/2023 23:19TO-15 2-Hexanone µg/m3 0.285
56.5 07/06/2023 23:19TO-15 Isopropyl Alcohol µg/m3 0.139
30.0 07/06/2023 23:19TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224
J1.32 07/06/2023 23:19TO-15 4-Methyl-2-Pentanone µg/m3 0.121
9.77 07/06/2023 23:19TO-15 Styrene µg/m3 0.124
17.3 07/06/2023 23:19TO-15 Tetrahydrofuran µg/m3 0.107
57.0 07/06/2023 23:19TO-15 Toluene µg/m3 0.090
J1.73 07/06/2023 23:19TO-15 Trichlorofluoromethane µg/m3 0.130
4.42 07/06/2023 23:19TO-15 1,2,4-Trimethylbenzene µg/m3 0.110
J0.904 07/06/2023 23:19TO-15 1,3,5-Trimethylbenzene µg/m3 0.236
2.58 07/06/2023 23:19TO-15 o-Xylene µg/m3 0.157
8.34 07/06/2023 23:19TO-15 m,p-Xylene µg/m3 0.217
10.9 07/06/2023 23:19TO-15 Xylene (Total)µg/m3 0.157
V 99281IAS-BKG
21.3 07/07/2023 00:07TO-15 Acetone µg/m3 0.202
JB0.485 07/07/2023 00:07TO-15 Benzene µg/m3 0.073
JB0.295 07/07/2023 00:07TO-15 Carbon Disulfide µg/m3 0.060
J0.850 07/07/2023 00:07TO-15 Chloromethane µg/m3 0.067
2.59 07/07/2023 00:07TO-15 Dichlorodifluoromethane µg/m3 0.134
J2.09 07/07/2023 00:07TO-15 Isopropyl Alcohol µg/m3 0.139
2.08 07/07/2023 00:07TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224
JB1.02 07/07/2023 00:07TO-15 Toluene µg/m3 0.090
J1.52 07/07/2023 00:07TO-15 Trichlorofluoromethane µg/m3 0.130
V 99282IAS-2
39.2 07/07/2023 00:54TO-15 Acetone µg/m3 0.202
JB0.559 07/07/2023 00:54TO-15 Benzene µg/m3 0.073
J0.854 07/07/2023 00:54TO-15 Chloroform µg/m3 0.086
J0.976 07/07/2023 00:54TO-15 Chloromethane µg/m3 0.067
18.1 07/07/2023 00:54TO-15 Dichlorodifluoromethane µg/m3 0.134
Page 12 of 100
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-177-0008
Report Limit
Project:LEN-008
V 99282IAS-2
J0.428 07/07/2023 00:54TO-15 Ethyl Acetate µg/m3 0.136
J0.369 07/07/2023 00:54TO-15 Ethylbenzene µg/m3 0.106
J0.762 07/07/2023 00:54TO-15 Heptane µg/m3 0.143
J0.764 07/07/2023 00:54TO-15 n-Hexane µg/m3 0.047
J0.389 07/07/2023 00:54TO-15 2-Hexanone µg/m3 0.285
6.94 07/07/2023 00:54TO-15 Isopropyl Alcohol µg/m3 0.139
3.81 07/07/2023 00:54TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224
J0.562 07/07/2023 00:54TO-15 Methylene Chloride µg/m3 0.488
J0.672 07/07/2023 00:54TO-15 Styrene µg/m3 0.124
J0.693 07/07/2023 00:54TO-15 Tetrahydrofuran µg/m3 0.107
B4.17 07/07/2023 00:54TO-15 Toluene µg/m3 0.090
35.4 07/07/2023 00:54TO-15 Trichlorofluoromethane µg/m3 0.130
J2.40 07/07/2023 00:54TO-15 1,2,4-Trimethylbenzene µg/m3 0.110
J0.377 07/07/2023 00:54TO-15 o-Xylene µg/m3 0.157
J1.92 07/07/2023 00:54TO-15 m,p-Xylene µg/m3 0.217
J2.30 07/07/2023 00:54TO-15 Xylene (Total)µg/m3 0.157
Page 13 of 100

Client: Hart & Hickman (Charlotte) CASE NARRATIVE
Project: LEN-008 Lab Report Number: 23-177-0008
Date: 7/20/2023
Report Comments Revised Report: Revision 2 Summary of detections has been updated.
Volatile Organic Compounds in Air- GC/MS Method TO-15
Sample 99269 (SS-MP-7) QC Batch No: V34774/V34773
The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly.
Sample 99267 (SS-MP-2) QC Batch No: V34795/V34794
The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly.
Sample 99268 (SS-MP-DUP) QC Batch No: V34795/V34794
The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly. High non-target compounds present.
Sample 99272 (SS-MP-6)
QC Batch No: V34795/V34794 The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly. Analyte: 1,1,2,2-Tetrachloroethane
QC Batch No: V34864/V34794 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the
batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable.
Sample 99274 (SS-MP-8) QC Batch No: V34837/V34836 The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly.
Sample 99275 (SS-MP-5)
QC Batch No: V34837/V34836 The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly.
Page 14 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-2
99267 Matrix:
6/21/2023 11:02
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00
249 µg/m3 10.1 238Acetone 50 06/28/23 22:01 V34795ENM
0.875 J µg/m3 0.146 3.19Benzene 2 06/29/23 06:05 V34795ENM
<0.293 µg/m3 0.293 20.7Benzyl Chloride 2 06/29/23 06:05 V34795ENM
<0.299 µg/m3 0.299 6.70Bromodichloromethane 2 06/29/23 06:05 V34795ENM
<0.304 µg/m3 0.304 10.3Bromoform 2 06/29/23 06:05 V34795ENM
<0.229 µg/m3 0.229 3.88Bromomethane 2 06/29/23 06:05 V34795ENM
<0.653 µg/m3 0.653 2.211,3-Butadiene 2 06/29/23 06:05 V34795ENM
1.49 J µg/m3 0.122 12.5Carbon Disulfide 2 06/29/23 06:05 V34795ENM
<0.309 µg/m3 0.309 6.29
Carbon Tetrachloride 2 06/29/23 06:05 V34795ENM
<0.213 µg/m3 0.213 4.60Chlorobenzene 2 06/29/23 06:05 V34795ENM
<0.416 µg/m3 0.416 8.52Chlorodibromomethane 2 06/29/23 06:05 V34795ENM
<0.328 µg/m3 0.328 2.64Chloroethane 2 06/29/23 06:05 V34795ENM
2.97 J µg/m3 0.172 4.88Chloroform 2 06/29/23 06:05 V34795ENM
2.14 µg/m3 0.134 2.06Chloromethane 2 06/29/23 06:05 V34795ENM
<0.321 µg/m3 0.321 6.88Cyclohexane 2 06/29/23 06:05 V34795ENM
<0.301 µg/m3 0.301 7.68
1,2-Dibromoethane 2 06/29/23 06:05 V34795ENM
<0.192 µg/m3 0.192 6.011,2-Dichlorobenzene 2 06/29/23 06:05 V34795ENM
<0.348 µg/m3 0.348 24.11,3-Dichlorobenzene 2 06/29/23 06:05 V34795ENM
<0.371 µg/m3 0.371 6.011,4-Dichlorobenzene 2 06/29/23 06:05 V34795ENM
2.73 J µg/m3 0.267 4.94Dichlorodifluoromethane 2 06/29/23 06:05 V34795ENM
<0.202 µg/m3 0.202 4.051,1-Dichloroethane 2 06/29/23 06:05 V34795ENM
<0.258 µg/m3 0.258 4.051,2-Dichloroethane 2 06/29/23 06:05 V34795ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 15 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-2
99267 Matrix:
6/21/2023 11:02
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00
<0.213 µg/m3 0.213 3.961,1-Dichloroethene 2 06/29/23 06:05 V34795ENM
<0.190 µg/m3 0.190 3.96cis-1,2-Dichloroethene 2 06/29/23 06:05 V34795ENM
<0.215 µg/m3 0.215 3.96trans-1,2-Dichloroethene 2 06/29/23 06:05 V34795ENM
<0.409 µg/m3 0.409 4.621,2-Dichloropropane 2 06/29/23 06:05 V34795ENM
<1.24 µg/m3 1.24 6.991,2-Dichlorotetrafluoroethane 2 06/29/23 06:05 V34795ENM
<0.356 µg/m3 0.356 4.54cis-1,3-Dichloropropene 2 06/29/23 06:05 V34795ENM
<0.356 µg/m3 0.356 4.54trans-1,3-Dichloropropene 2 06/29/23 06:05 V34795ENM
<0.869 µg/m3 0.869 3.601,4-Dioxane 2 06/29/23 06:05 V34795ENM
2.83 J
µg/m3 0.271 3.60
Ethyl Acetate 2 06/29/23 06:05 V34795ENM
4.57 µg/m3 0.211 4.34Ethylbenzene 2 06/29/23 06:05 V34795ENM
1.14 J µg/m3 0.256 4.924-Ethyltoluene 2 06/29/23 06:05 V34795ENM
<1.12 µg/m3 1.12 7.661,1,2-Trichloro-1,2,2-trifluoroethane 2 06/29/23 06:05 V34795ENM
2.48 J µg/m3 0.286 4.10Heptane 2 06/29/23 06:05 V34795ENM
<0.662 µg/m3 0.662 10.7Hexachlorobutadiene 2 06/29/23 06:05 V34795ENM
1.10 J µg/m3 0.094 3.52n-Hexane 2 06/29/23 06:05 V34795ENM
1.98 J
µg/m3 0.570 4.10
2-Hexanone 2 06/29/23 06:05 V34795ENM
30.4 µg/m3 0.277 9.83Isopropyl Alcohol 2 06/29/23 06:05 V34795ENM
295 µg/m3 0.448 2.95Methyl Ethyl Ketone (MEK)2 06/29/23 06:05 V34795ENM
<0.067 µg/m3 0.067 3.61Methyl tert-butyl ether (MTBE)2 06/29/23 06:05 V34795ENM
1.05 J µg/m3 0.242 4.104-Methyl-2-Pentanone 2 06/29/23 06:05 V34795ENM
<0.975 µg/m3 0.975 3.47Methylene Chloride 2 06/29/23 06:05 V34795ENM
<0.365 µg/m3 0.365 5.24Naphthalene 2 06/29/23 06:05 V34795ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 16 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-2
99267 Matrix:
6/21/2023 11:02
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00
<0.483 µg/m3 0.483 1.72Propene 2 06/29/23 06:05 V34795ENM
1.76 J µg/m3 0.248 4.26Styrene 2 06/29/23 06:05 V34795ENM
<0.207 µg/m3 0.207 6.861,1,2,2-Tetrachloroethane 2 06/29/23 06:05 V34795ENM
<0.361 µg/m3 0.361 6.78Tetrachloroethene 2 06/29/23 06:05 V34795ENM
3690 µg/m3 5.35 73.7Tetrahydrofuran 50 06/28/23 22:01 V34795ENM
59.7 µg/m3 0.180 3.77Toluene 2 06/29/23 06:05 V34795ENM
<0.417 µg/m3 0.417 7.421,2,4-Trichlorobenzene 2 06/29/23 06:05 V34795ENM
<0.288 µg/m3 0.288 5.461,1,1-Trichloroethane 2 06/29/23 06:05 V34795ENM
<0.175 µg/m3 0.175 5.46
1,1,2-Trichloroethane 2 06/29/23 06:05 V34795ENM
<0.398 µg/m3 0.398 4.30Trichloroethene 2 06/29/23 06:05 V34795ENM
1.84 J µg/m3 0.260 5.62Trichlorofluoromethane 2 06/29/23 06:05 V34795ENM
4.51 J µg/m3 0.220 4.921,2,4-Trimethylbenzene 2 06/29/23 06:05 V34795ENM
1.86 J µg/m3 0.472 4.921,3,5-Trimethylbenzene 2 06/29/23 06:05 V34795ENM
<0.447 µg/m3 0.447 3.52Vinyl Acetate 2 06/29/23 06:05 V34795ENM
<0.254 µg/m3 0.254 2.56Vinyl Chloride 2 06/29/23 06:05 V34795ENM
6.30 µg/m3 0.313 4.34
o-Xylene 2 06/29/23 06:05 V34795ENM
22.3 µg/m3 0.434 11.3m,p-Xylene 2 06/29/23 06:05 V34795ENM
28.6 µg/m3 0.313 4.34Xylene (Total)2 06/29/23 06:05 V34795
Surrogate: 4-Bromofluorobenzene 108 Limits: 70-130%06/29/23 06:052 ENM V34795
Surrogate: 4-Bromofluorobenzene 97.5 Limits: 70-130%06/28/23 22:0150 ENM V34795
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 17 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-DUP
99268 Matrix:
6/22/2023 0:00
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00
252 µg/m3 10.1 238Acetone 50 06/28/23 22:37 V34795ENM
1.06 J µg/m3 0.146 3.19Benzene 2 06/29/23 06:49 V34795ENM
<0.293 µg/m3 0.293 20.7Benzyl Chloride 2 06/29/23 06:49 V34795ENM
<0.299 µg/m3 0.299 6.70Bromodichloromethane 2 06/29/23 06:49 V34795ENM
<0.304 µg/m3 0.304 10.3Bromoform 2 06/29/23 06:49 V34795ENM
<0.229 µg/m3 0.229 3.88Bromomethane 2 06/29/23 06:49 V34795ENM
<0.653 µg/m3 0.653 2.211,3-Butadiene 2 06/29/23 06:49 V34795ENM
2.50 J µg/m3 0.122 12.5Carbon Disulfide 2 06/29/23 06:49 V34795ENM
<0.309 µg/m3 0.309 6.29
Carbon Tetrachloride 2 06/29/23 06:49 V34795ENM
<0.213 µg/m3 0.213 4.60Chlorobenzene 2 06/29/23 06:49 V34795ENM
<0.416 µg/m3 0.416 8.52Chlorodibromomethane 2 06/29/23 06:49 V34795ENM
<0.328 µg/m3 0.328 2.64Chloroethane 2 06/29/23 06:49 V34795ENM
2.97 J µg/m3 0.172 4.88Chloroform 2 06/29/23 06:49 V34795ENM
<0.134 µg/m3 0.134 2.06Chloromethane 2 06/29/23 06:49 V34795ENM
<0.321 µg/m3 0.321 6.88Cyclohexane 2 06/29/23 06:49 V34795ENM
<0.301 µg/m3 0.301 7.68
1,2-Dibromoethane 2 06/29/23 06:49 V34795ENM
<0.192 µg/m3 0.192 6.011,2-Dichlorobenzene 2 06/29/23 06:49 V34795ENM
<0.348 µg/m3 0.348 24.11,3-Dichlorobenzene 2 06/29/23 06:49 V34795ENM
<0.371 µg/m3 0.371 6.011,4-Dichlorobenzene 2 06/29/23 06:49 V34795ENM
2.75 J µg/m3 0.267 4.94Dichlorodifluoromethane 2 06/29/23 06:49 V34795ENM
<0.202 µg/m3 0.202 4.051,1-Dichloroethane 2 06/29/23 06:49 V34795ENM
<0.258 µg/m3 0.258 4.051,2-Dichloroethane 2 06/29/23 06:49 V34795ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 18 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-DUP
99268 Matrix:
6/22/2023 0:00
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00
<0.213 µg/m3 0.213 3.961,1-Dichloroethene 2 06/29/23 06:49 V34795ENM
<0.190 µg/m3 0.190 3.96cis-1,2-Dichloroethene 2 06/29/23 06:49 V34795ENM
<0.215 µg/m3 0.215 3.96trans-1,2-Dichloroethene 2 06/29/23 06:49 V34795ENM
<0.409 µg/m3 0.409 4.621,2-Dichloropropane 2 06/29/23 06:49 V34795ENM
<1.24 µg/m3 1.24 6.991,2-Dichlorotetrafluoroethane 2 06/29/23 06:49 V34795ENM
<0.356 µg/m3 0.356 4.54cis-1,3-Dichloropropene 2 06/29/23 06:49 V34795ENM
<0.356 µg/m3 0.356 4.54trans-1,3-Dichloropropene 2 06/29/23 06:49 V34795ENM
<0.869 µg/m3 0.869 3.601,4-Dioxane 2 06/29/23 06:49 V34795ENM
3.79 µg/m3 0.271 3.60
Ethyl Acetate 2 06/29/23 06:49 V34795ENM
4.49 µg/m3 0.211 4.34Ethylbenzene 2 06/29/23 06:49 V34795ENM
1.03 J µg/m3 0.256 4.924-Ethyltoluene 2 06/29/23 06:49 V34795ENM
<1.12 µg/m3 1.12 7.661,1,2-Trichloro-1,2,2-trifluoroethane 2 06/29/23 06:49 V34795ENM
2.64 J µg/m3 0.286 4.10Heptane 2 06/29/23 06:49 V34795ENM
<0.662 µg/m3 0.662 10.7Hexachlorobutadiene 2 06/29/23 06:49 V34795ENM
1.21 J µg/m3 0.094 3.52n-Hexane 2 06/29/23 06:49 V34795ENM
1.87 J
µg/m3 0.570 4.10
2-Hexanone 2 06/29/23 06:49 V34795ENM
31.9 µg/m3 0.277 9.83Isopropyl Alcohol 2 06/29/23 06:49 V34795ENM
253 µg/m3 11.2 73.7Methyl Ethyl Ketone (MEK)50 06/28/23 22:37 V34795ENM
<0.067 µg/m3 0.067 3.61Methyl tert-butyl ether (MTBE)2 06/29/23 06:49 V34795ENM
0.950 J µg/m3 0.242 4.104-Methyl-2-Pentanone 2 06/29/23 06:49 V34795ENM
<0.975 µg/m3 0.975 3.47Methylene Chloride 2 06/29/23 06:49 V34795ENM
<0.365 µg/m3 0.365 5.24Naphthalene 2 06/29/23 06:49 V34795ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 19 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-DUP
99268 Matrix:
6/22/2023 0:00
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00
<0.483 µg/m3 0.483 1.72Propene 2 06/29/23 06:49 V34795ENM
1.89 J µg/m3 0.248 4.26Styrene 2 06/29/23 06:49 V34795ENM
<0.207 µg/m3 0.207 6.861,1,2,2-Tetrachloroethane 2 06/29/23 06:49 V34795ENM
<0.361 µg/m3 0.361 6.78Tetrachloroethene 2 06/29/23 06:49 V34795ENM
3840 µg/m3 5.35 73.7Tetrahydrofuran 50 06/28/23 22:37 V34795ENM
60.4 µg/m3 0.180 3.77Toluene 2 06/29/23 06:49 V34795ENM
<0.417 µg/m3 0.417 7.421,2,4-Trichlorobenzene 2 06/29/23 06:49 V34795ENM
<0.288 µg/m3 0.288 5.461,1,1-Trichloroethane 2 06/29/23 06:49 V34795ENM
<0.175 µg/m3 0.175 5.46
1,1,2-Trichloroethane 2 06/29/23 06:49 V34795ENM
<0.398 µg/m3 0.398 4.30Trichloroethene 2 06/29/23 06:49 V34795ENM
1.88 J µg/m3 0.260 5.62Trichlorofluoromethane 2 06/29/23 06:49 V34795ENM
4.58 J µg/m3 0.220 4.921,2,4-Trimethylbenzene 2 06/29/23 06:49 V34795ENM
1.78 J µg/m3 0.472 4.921,3,5-Trimethylbenzene 2 06/29/23 06:49 V34795ENM
<0.447 µg/m3 0.447 3.52Vinyl Acetate 2 06/29/23 06:49 V34795ENM
<0.254 µg/m3 0.254 2.56Vinyl Chloride 2 06/29/23 06:49 V34795ENM
6.62 µg/m3 0.313 4.34
o-Xylene 2 06/29/23 06:49 V34795ENM
21.9 µg/m3 0.434 11.3m,p-Xylene 2 06/29/23 06:49 V34795ENM
28.5 µg/m3 0.313 4.34Xylene (Total)2 06/29/23 06:49 V34795
Surrogate: 4-Bromofluorobenzene 108 Limits: 70-130%06/29/23 06:492 ENM V34795
Surrogate: 4-Bromofluorobenzene 96.9 Limits: 70-130%06/28/23 22:3750 ENM V34795
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 20 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-7
99269 Matrix:
6/22/2023 16:41
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34773 06/27/23 09:00 V34794 06/28/23 09:00
5970 µg/m3 40.4 950Acetone 200 06/28/23 23:14 V34795ENM
<1.46 µg/m3 1.46 31.9Benzene 20 06/27/23 22:27 V34774ENM
<2.94 µg/m3 2.94 207Benzyl Chloride 20 06/27/23 22:27 V34774ENM
<3.00 µg/m3 3.00 67.0Bromodichloromethane 20 06/27/23 22:27 V34774ENM
<3.05 µg/m3 3.05 103Bromoform 20 06/27/23 22:27 V34774ENM
<2.30 µg/m3 2.30 38.8Bromomethane 20 06/27/23 22:27 V34774ENM
<6.53 µg/m3 6.53 22.11,3-Butadiene 20 06/27/23 22:27 V34774ENM
4.61 J µg/m3 1.22 125Carbon Disulfide 20 06/27/23 22:27 V34774ENM
<3.10 µg/m3 3.10 62.9
Carbon Tetrachloride 20 06/27/23 22:27 V34774ENM
<2.14 µg/m3 2.14 46.0Chlorobenzene 20 06/27/23 22:27 V34774ENM
<4.16 µg/m3 4.16 85.2Chlorodibromomethane 20 06/27/23 22:27 V34774ENM
<3.28 µg/m3 3.28 26.4Chloroethane 20 06/27/23 22:27 V34774ENM
7.62 J µg/m3 1.73 48.8Chloroform 20 06/27/23 22:27 V34774ENM
<1.34 µg/m3 1.34 20.6Chloromethane 20 06/27/23 22:27 V34774ENM
<3.22 µg/m3 3.22 68.8Cyclohexane 20 06/27/23 22:27 V34774ENM
<3.02 µg/m3 3.02 76.8
1,2-Dibromoethane 20 06/27/23 22:27 V34774ENM
<1.92 µg/m3 1.92 60.11,2-Dichlorobenzene 20 06/27/23 22:27 V34774ENM
<3.48 µg/m3 3.48 2411,3-Dichlorobenzene 20 06/27/23 22:27 V34774ENM
<3.72 µg/m3 3.72 60.11,4-Dichlorobenzene 20 06/27/23 22:27 V34774ENM
<2.68 µg/m3 2.68 49.4Dichlorodifluoromethane 20 06/27/23 22:27 V34774ENM
<2.02 µg/m3 2.02 40.51,1-Dichloroethane 20 06/27/23 22:27 V34774ENM
<2.58 µg/m3 2.58 40.51,2-Dichloroethane 20 06/27/23 22:27 V34774ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 21 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-7
99269 Matrix:
6/22/2023 16:41
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34773 06/27/23 09:00 V34794 06/28/23 09:00
<2.14 µg/m3 2.14 39.61,1-Dichloroethene 20 06/27/23 22:27 V34774ENM
<1.91 µg/m3 1.91 39.6cis-1,2-Dichloroethene 20 06/27/23 22:27 V34774ENM
<2.16 µg/m3 2.16 39.6trans-1,2-Dichloroethene 20 06/27/23 22:27 V34774ENM
<4.10 µg/m3 4.10 46.21,2-Dichloropropane 20 06/27/23 22:27 V34774ENM
<12.4 µg/m3 12.4 69.91,2-Dichlorotetrafluoroethane 20 06/27/23 22:27 V34774ENM
<3.56 µg/m3 3.56 45.4cis-1,3-Dichloropropene 20 06/27/23 22:27 V34774ENM
<3.56 µg/m3 3.56 45.4trans-1,3-Dichloropropene 20 06/27/23 22:27 V34774ENM
<8.69 µg/m3 8.69 36.01,4-Dioxane 20 06/27/23 22:27 V34774ENM
<2.72 µg/m3 2.72 36.0
Ethyl Acetate 20 06/27/23 22:27 V34774ENM
<2.12 µg/m3 2.12 43.4Ethylbenzene 20 06/27/23 22:27 V34774ENM
<2.56 µg/m3 2.56 49.24-Ethyltoluene 20 06/27/23 22:27 V34774ENM
<11.2 µg/m3 11.2 76.61,1,2-Trichloro-1,2,2-trifluoroethane 20 06/27/23 22:27 V34774ENM
<2.86 µg/m3 2.86 41.0Heptane 20 06/27/23 22:27 V34774ENM
<6.62 µg/m3 6.62 107Hexachlorobutadiene 20 06/27/23 22:27 V34774ENM
<0.942 µg/m3 0.942 35.2n-Hexane 20 06/27/23 22:27 V34774ENM
<5.71 µg/m3 5.71 41.0
2-Hexanone 20 06/27/23 22:27 V34774ENM
21.6 J µg/m3 2.78 98.3Isopropyl Alcohol 20 06/27/23 22:27 V34774ENM
630 µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 06/27/23 22:27 V34774ENM
<0.672 µg/m3 0.672 36.1Methyl tert-butyl ether (MTBE)20 06/27/23 22:27 V34774ENM
<2.42 µg/m3 2.42 41.04-Methyl-2-Pentanone 20 06/27/23 22:27 V34774ENM
<9.75 µg/m3 9.75 34.7Methylene Chloride 20 06/27/23 22:27 V34774ENM
<3.66 µg/m3 3.66 52.4Naphthalene 20 06/27/23 22:27 V34774ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 22 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-7
99269 Matrix:
6/22/2023 16:41
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34773 06/27/23 09:00 V34794 06/28/23 09:00
<4.84 µg/m3 4.84 17.2Propene 20 06/27/23 22:27 V34774ENM
<2.48 µg/m3 2.48 42.6Styrene 20 06/27/23 22:27 V34774ENM
<2.08 µg/m3 2.08 68.61,1,2,2-Tetrachloroethane 20 06/27/23 22:27 V34774ENM
<3.62 µg/m3 3.62 67.8Tetrachloroethene 20 06/27/23 22:27 V34774ENM
14000 µg/m3 21.4 295Tetrahydrofuran 200 06/28/23 23:14 V34795ENM
8.14 J µg/m3 1.80 37.7Toluene 20 06/27/23 22:27 V34774ENM
<4.18 µg/m3 4.18 74.21,2,4-Trichlorobenzene 20 06/27/23 22:27 V34774ENM
<2.88 µg/m3 2.88 54.61,1,1-Trichloroethane 20 06/27/23 22:27 V34774ENM
<1.75 µg/m3 1.75 54.6
1,1,2-Trichloroethane 20 06/27/23 22:27 V34774ENM
<3.98 µg/m3 3.98 43.0Trichloroethene 20 06/27/23 22:27 V34774ENM
<2.60 µg/m3 2.60 56.2Trichlorofluoromethane 20 06/27/23 22:27 V34774ENM
<2.20 µg/m3 2.20 49.21,2,4-Trimethylbenzene 20 06/27/23 22:27 V34774ENM
<4.72 µg/m3 4.72 49.21,3,5-Trimethylbenzene 20 06/27/23 22:27 V34774ENM
<4.48 µg/m3 4.48 35.2Vinyl Acetate 20 06/27/23 22:27 V34774ENM
<2.54 µg/m3 2.54 25.6Vinyl Chloride 20 06/27/23 22:27 V34774ENM
<3.14 µg/m3 3.14 43.4
o-Xylene 20 06/27/23 22:27 V34774ENM
<4.34 µg/m3 4.34 113m,p-Xylene 20 06/27/23 22:27 V34774ENM
<3.14 µg/m3 3.14 43.4Xylene (Total)20 06/27/23 22:27 V34774
Surrogate: 4-Bromofluorobenzene 113 Limits: 70-130%06/27/23 22:2720 ENM V34774
Surrogate: 4-Bromofluorobenzene 99.4 Limits: 70-130%06/28/23 23:14200 ENM V34795
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 23 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-3
99270 Matrix:
6/22/2023 11:42
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00 V34850 06/27/23 09:00
118 µg/m3 0.202 4.75Acetone 1 06/29/23 00:08 V34795ENM
0.396 J µg/m3 0.073 1.60Benzene 1 06/29/23 00:08 V34795ENM
<0.147 µg/m3 0.147 10.4Benzyl Chloride 1 06/29/23 00:08 V34795ENM
<0.150 µg/m3 0.150 3.35Bromodichloromethane 1 06/29/23 00:08 V34795ENM
<0.153 µg/m3 0.153 5.17Bromoform 1 06/29/23 00:08 V34795ENM
<0.115 µg/m3 0.115 1.94Bromomethane 1 06/29/23 00:08 V34795ENM
<0.328 µg/m3 0.328 1.111,3-Butadiene 1 06/29/23 00:08 V34795ENM
1.60 J µg/m3 0.060 6.23Carbon Disulfide 1 06/29/23 00:08 V34795ENM
<0.155 µg/m3 0.155 3.15
Carbon Tetrachloride 1 06/29/23 00:08 V34795ENM
<0.107 µg/m3 0.107 2.30Chlorobenzene 1 06/29/23 00:08 V34795ENM
<0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 06/29/23 00:08 V34795ENM
<0.164 µg/m3 0.164 1.32Chloroethane 1 06/29/23 00:08 V34795ENM
22.1 µg/m3 0.086 2.44Chloroform 1 06/29/23 00:08 V34795ENM
0.877 J µg/m3 0.067 1.03Chloromethane 1 06/29/23 00:08 V34795ENM
<0.161 µg/m3 0.161 3.44Cyclohexane 1 06/29/23 00:08 V34795ENM
<0.151 µg/m3 0.151 3.84
1,2-Dibromoethane 1 06/29/23 00:08 V34795ENM
<0.096 µg/m3 0.096 3.011,2-Dichlorobenzene 1 06/29/23 00:08 V34795ENM
<0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 06/29/23 00:08 V34795ENM
<0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 06/29/23 00:08 V34795ENM
2.64 µg/m3 0.134 2.47Dichlorodifluoromethane 1 06/29/23 00:08 V34795ENM
<0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 06/29/23 00:08 V34795ENM
<0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 06/29/23 00:08 V34795ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 24 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-3
99270 Matrix:
6/22/2023 11:42
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00 V34850 06/27/23 09:00
<0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 06/29/23 00:08 V34795ENM
<0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 06/29/23 00:08 V34795ENM
<0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 06/29/23 00:08 V34795ENM
<0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 06/29/23 00:08 V34795ENM
<0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 06/29/23 00:08 V34795ENM
<0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 06/29/23 00:08 V34795ENM
<0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 06/29/23 00:08 V34795ENM
<0.435 µg/m3 0.435 1.801,4-Dioxane 1 06/29/23 00:08 V34795ENM
3.15 µg/m3 0.136 1.80
Ethyl Acetate 1 06/29/23 00:08 V34795ENM
0.998 J µg/m3 0.106 2.17Ethylbenzene 1 06/29/23 00:08 V34795ENM
0.584 J µg/m3 0.128 2.464-Ethyltoluene 1 06/29/23 00:08 V34795ENM
<0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 06/29/23 00:08 V34795ENM
0.368 J µg/m3 0.143 2.05Heptane 1 06/29/23 00:08 V34795ENM
<0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 06/29/23 00:08 V34795ENM
<0.047 µg/m3 0.047 1.76n-Hexane 1 06/29/23 00:08 V34795ENM
<0.285 µg/m3 0.285 2.05
2-Hexanone 1 06/29/23 00:08 V34795ENM
13.9 µg/m3 0.139 4.92Isopropyl Alcohol 1 06/29/23 00:08 V34795ENM
842 µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 06/27/23 23:04 V34855ENM
<0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 06/29/23 00:08 V34795ENM
<0.121 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 06/29/23 00:08 V34795ENM
<0.488 µg/m3 0.488 1.74Methylene Chloride 1 06/29/23 00:08 V34795ENM
<0.183 µg/m3 0.183 2.62Naphthalene 1 06/29/23 00:08 V34795ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 25 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-3
99270 Matrix:
6/22/2023 11:42
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00 V34850 06/27/23 09:00
<0.242 µg/m3 0.242 0.860Propene 1 06/29/23 00:08 V34795ENM
0.796 J µg/m3 0.124 2.13Styrene 1 06/29/23 00:08 V34795ENM
<0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 06/29/23 00:08 V34795ENM
1.70 J µg/m3 0.181 3.39Tetrachloroethene 1 06/29/23 00:08 V34795ENM
1910 µg/m3 2.14 29.5Tetrahydrofuran 20 06/27/23 23:04 V34855ENM
7.19 µg/m3 0.090 1.88Toluene 1 06/29/23 00:08 V34795ENM
<0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 06/29/23 00:08 V34795ENM
<0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 06/29/23 00:08 V34795ENM
<0.087 µg/m3 0.087 2.73
1,1,2-Trichloroethane 1 06/29/23 00:08 V34795ENM
<0.199 µg/m3 0.199 2.15Trichloroethene 1 06/29/23 00:08 V34795ENM
2.10 J µg/m3 0.130 2.81Trichlorofluoromethane 1 06/29/23 00:08 V34795ENM
2.66 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 06/29/23 00:08 V34795ENM
0.771 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 06/29/23 00:08 V34795ENM
<0.224 µg/m3 0.224 1.76Vinyl Acetate 1 06/29/23 00:08 V34795ENM
<0.127 µg/m3 0.127 1.28Vinyl Chloride 1 06/29/23 00:08 V34795ENM
1.90 J
µg/m3 0.157 2.17
o-Xylene 1 06/29/23 00:08 V34795ENM
5.64 J µg/m3 0.217 5.65m,p-Xylene 1 06/29/23 00:08 V34795ENM
7.54 J µg/m3 0.157 2.17Xylene (Total)1 06/29/23 00:08 V34795
Surrogate: 4-Bromofluorobenzene 115 Limits: 70-130%06/29/23 00:081 ENM V34795
Surrogate: 4-Bromofluorobenzene 100 Limits: 70-130%06/27/23 23:0420 ENM V34855
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 26 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-4
99271 Matrix:
6/22/2023 13:28
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00 V34850 06/27/23 09:00
134 µg/m3 4.04 95.0Acetone 20 06/27/23 23:41 V34855ENM
0.373 J µg/m3 0.073 1.60Benzene 1 06/29/23 00:58 V34795ENM
<0.147 µg/m3 0.147 10.4Benzyl Chloride 1 06/29/23 00:58 V34795ENM
<0.150 µg/m3 0.150 3.35Bromodichloromethane 1 06/29/23 00:58 V34795ENM
<0.153 µg/m3 0.153 5.17Bromoform 1 06/29/23 00:58 V34795ENM
<0.115 µg/m3 0.115 1.94Bromomethane 1 06/29/23 00:58 V34795ENM
<0.328 µg/m3 0.328 1.111,3-Butadiene 1 06/29/23 00:58 V34795ENM
0.971 J µg/m3 0.060 6.23Carbon Disulfide 1 06/29/23 00:58 V34795ENM
<0.155 µg/m3 0.155 3.15
Carbon Tetrachloride 1 06/29/23 00:58 V34795ENM
<0.107 µg/m3 0.107 2.30Chlorobenzene 1 06/29/23 00:58 V34795ENM
<0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 06/29/23 00:58 V34795ENM
<0.164 µg/m3 0.164 1.32Chloroethane 1 06/29/23 00:58 V34795ENM
9.83 µg/m3 0.086 2.44Chloroform 1 06/29/23 00:58 V34795ENM
<0.067 µg/m3 0.067 1.03Chloromethane 1 06/29/23 00:58 V34795ENM
2.36 J µg/m3 0.161 3.44Cyclohexane 1 06/29/23 00:58 V34795ENM
<0.151 µg/m3 0.151 3.84
1,2-Dibromoethane 1 06/29/23 00:58 V34795ENM
<0.096 µg/m3 0.096 3.011,2-Dichlorobenzene 1 06/29/23 00:58 V34795ENM
<0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 06/29/23 00:58 V34795ENM
<0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 06/29/23 00:58 V34795ENM
2.45 J µg/m3 0.134 2.47Dichlorodifluoromethane 1 06/29/23 00:58 V34795ENM
<0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 06/29/23 00:58 V34795ENM
<0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 06/29/23 00:58 V34795ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 27 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-4
99271 Matrix:
6/22/2023 13:28
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00 V34850 06/27/23 09:00
<0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 06/29/23 00:58 V34795ENM
<0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 06/29/23 00:58 V34795ENM
<0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 06/29/23 00:58 V34795ENM
<0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 06/29/23 00:58 V34795ENM
<0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 06/29/23 00:58 V34795ENM
<0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 06/29/23 00:58 V34795ENM
<0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 06/29/23 00:58 V34795ENM
<0.435 µg/m3 0.435 1.801,4-Dioxane 1 06/29/23 00:58 V34795ENM
0.799 J
µg/m3 0.136 1.80
Ethyl Acetate 1 06/29/23 00:58 V34795ENM
0.694 J µg/m3 0.106 2.17Ethylbenzene 1 06/29/23 00:58 V34795ENM
<0.128 µg/m3 0.128 2.464-Ethyltoluene 1 06/29/23 00:58 V34795ENM
<0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 06/29/23 00:58 V34795ENM
0.704 J µg/m3 0.143 2.05Heptane 1 06/29/23 00:58 V34795ENM
<0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 06/29/23 00:58 V34795ENM
<0.047 µg/m3 0.047 1.76n-Hexane 1 06/29/23 00:58 V34795ENM
1.34 J
µg/m3 0.285 2.05
2-Hexanone 1 06/29/23 00:58 V34795ENM
22.3 µg/m3 0.139 4.92Isopropyl Alcohol 1 06/29/23 00:58 V34795ENM
1160 µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 06/27/23 23:41 V34855ENM
<0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 06/29/23 00:58 V34795ENM
0.512 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 06/29/23 00:58 V34795ENM
<0.488 µg/m3 0.488 1.74Methylene Chloride 1 06/29/23 00:58 V34795ENM
<0.183 µg/m3 0.183 2.62Naphthalene 1 06/29/23 00:58 V34795ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 28 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-4
99271 Matrix:
6/22/2023 13:28
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00 V34850 06/27/23 09:00
<0.242 µg/m3 0.242 0.860Propene 1 06/29/23 00:58 V34795ENM
2.28 µg/m3 0.124 2.13Styrene 1 06/29/23 00:58 V34795ENM
<0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 06/29/23 00:58 V34795ENM
40.2 µg/m3 0.181 3.39Tetrachloroethene 1 06/29/23 00:58 V34795ENM
1840 µg/m3 2.14 29.5Tetrahydrofuran 20 06/27/23 23:41 V34855ENM
9.77 µg/m3 0.090 1.88Toluene 1 06/29/23 00:58 V34795ENM
<0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 06/29/23 00:58 V34795ENM
<0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 06/29/23 00:58 V34795ENM
<0.087 µg/m3 0.087 2.73
1,1,2-Trichloroethane 1 06/29/23 00:58 V34795ENM
<0.199 µg/m3 0.199 2.15Trichloroethene 1 06/29/23 00:58 V34795ENM
1.89 J µg/m3 0.130 2.81Trichlorofluoromethane 1 06/29/23 00:58 V34795ENM
1.05 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 06/29/23 00:58 V34795ENM
<0.236 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 06/29/23 00:58 V34795ENM
<0.224 µg/m3 0.224 1.76Vinyl Acetate 1 06/29/23 00:58 V34795ENM
<0.127 µg/m3 0.127 1.28Vinyl Chloride 1 06/29/23 00:58 V34795ENM
1.09 J
µg/m3 0.157 2.17
o-Xylene 1 06/29/23 00:58 V34795ENM
3.39 J µg/m3 0.217 5.65m,p-Xylene 1 06/29/23 00:58 V34795ENM
4.48 J µg/m3 0.157 2.17Xylene (Total)1 06/29/23 00:58 V34795
Surrogate: 4-Bromofluorobenzene 115 Limits: 70-130%06/29/23 00:581 ENM V34795
Surrogate: 4-Bromofluorobenzene 100 Limits: 70-130%06/27/23 23:4120 ENM V34855
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 29 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-6
99272 Matrix:
6/22/2023 14:11
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00
96.0 µg/m3 0.202 4.75Acetone 1 06/29/23 07:42 V34795ENM
0.287 J µg/m3 0.073 1.60Benzene 1 06/29/23 07:42 V34795ENM
<0.147 µg/m3 0.147 10.4Benzyl Chloride 1 06/29/23 07:42 V34795ENM
<0.150 µg/m3 0.150 3.35Bromodichloromethane 1 06/29/23 07:42 V34795ENM
<0.153 µg/m3 0.153 5.17Bromoform 1 06/29/23 07:42 V34795ENM
<0.115 µg/m3 0.115 1.94Bromomethane 1 06/29/23 07:42 V34795ENM
<0.328 µg/m3 0.328 1.111,3-Butadiene 1 06/29/23 07:42 V34795ENM
0.965 J µg/m3 0.060 6.23Carbon Disulfide 1 06/29/23 07:42 V34795ENM
<0.155 µg/m3 0.155 3.15
Carbon Tetrachloride 1 06/29/23 07:42 V34795ENM
<0.107 µg/m3 0.107 2.30Chlorobenzene 1 06/29/23 07:42 V34795ENM
<0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 06/29/23 07:42 V34795ENM
<0.164 µg/m3 0.164 1.32Chloroethane 1 06/29/23 07:42 V34795ENM
40.2 µg/m3 0.086 2.44Chloroform 1 06/29/23 07:42 V34795ENM
<0.067 µg/m3 0.067 1.03Chloromethane 1 06/29/23 07:42 V34795ENM
<0.161 µg/m3 0.161 3.44Cyclohexane 1 06/29/23 07:42 V34795ENM
<0.151 µg/m3 0.151 3.84
1,2-Dibromoethane 1 06/29/23 07:42 V34795ENM
<0.096 µg/m3 0.096 3.011,2-Dichlorobenzene 1 06/29/23 07:42 V34795ENM
<0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 06/29/23 07:42 V34795ENM
<0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 06/29/23 07:42 V34795ENM
2.37 J µg/m3 0.134 2.47Dichlorodifluoromethane 1 06/29/23 07:42 V34795ENM
<0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 06/29/23 07:42 V34795ENM
<0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 06/29/23 07:42 V34795ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 30 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-6
99272 Matrix:
6/22/2023 14:11
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00
<0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 06/29/23 07:42 V34795ENM
<0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 06/29/23 07:42 V34795ENM
<0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 06/29/23 07:42 V34795ENM
2.16 J µg/m3 0.205 2.311,2-Dichloropropane 1 06/29/23 07:42 V34795ENM
<0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 06/29/23 07:42 V34795ENM
<0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 06/29/23 07:42 V34795ENM
<0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 06/29/23 07:42 V34795ENM
<0.435 µg/m3 0.435 1.801,4-Dioxane 1 06/29/23 07:42 V34795ENM
2.21 µg/m3 0.136 1.80
Ethyl Acetate 1 06/29/23 07:42 V34795ENM
0.351 J µg/m3 0.106 2.17Ethylbenzene 1 06/29/23 07:42 V34795ENM
<0.128 µg/m3 0.128 2.464-Ethyltoluene 1 06/29/23 07:42 V34795ENM
<0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 06/29/23 07:42 V34795ENM
0.864 J µg/m3 0.143 2.05Heptane 1 06/29/23 07:42 V34795ENM
<0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 06/29/23 07:42 V34795ENM
0.271 J µg/m3 0.047 1.76n-Hexane 1 06/29/23 07:42 V34795ENM
2.47 µg/m3 0.285 2.05
2-Hexanone 1 06/29/23 07:42 V34795ENM
16.2 µg/m3 0.139 4.92Isopropyl Alcohol 1 06/29/23 07:42 V34795ENM
2020 µg/m3 11.2 73.7Methyl Ethyl Ketone (MEK)50 06/29/23 01:34 V34795ENM
<0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 06/29/23 07:42 V34795ENM
0.696 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 06/29/23 07:42 V34795ENM
<0.488 µg/m3 0.488 1.74Methylene Chloride 1 06/29/23 07:42 V34795ENM
4.15 µg/m3 0.183 2.62Naphthalene 1 06/29/23 07:42 V34795ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 31 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-6
99272 Matrix:
6/22/2023 14:11
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00
<0.242 µg/m3 0.242 0.860Propene 1 06/29/23 07:42 V34795ENM
1.19 J µg/m3 0.124 2.13Styrene 1 06/29/23 07:42 V34795ENM
<0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 06/29/23 07:42 V34795ENM
1.10 J µg/m3 0.181 3.39Tetrachloroethene 1 06/29/23 07:42 V34795ENM
3070 µg/m3 5.35 73.7Tetrahydrofuran 50 06/29/23 01:34 V34795ENM
4.37 µg/m3 0.090 1.88Toluene 1 06/29/23 07:42 V34795ENM
<0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 06/29/23 07:42 V34795ENM
<0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 06/29/23 07:42 V34795ENM
<0.087 µg/m3 0.087 2.73
1,1,2-Trichloroethane 1 06/29/23 07:42 V34795ENM
<0.199 µg/m3 0.199 2.15Trichloroethene 1 06/29/23 07:42 V34795ENM
2.33 J µg/m3 0.130 2.81Trichlorofluoromethane 1 06/29/23 07:42 V34795ENM
0.884 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 06/29/23 07:42 V34795ENM
<0.236 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 06/29/23 07:42 V34795ENM
<0.224 µg/m3 0.224 1.76Vinyl Acetate 1 06/29/23 07:42 V34795ENM
<0.127 µg/m3 0.127 1.28Vinyl Chloride 1 06/29/23 07:42 V34795ENM
0.599 J
µg/m3 0.157 2.17
o-Xylene 1 06/29/23 07:42 V34795ENM
2.33 J µg/m3 0.217 5.65m,p-Xylene 1 06/29/23 07:42 V34795ENM
2.93 J µg/m3 0.157 2.17Xylene (Total)1 06/29/23 07:42 V34795
Surrogate: 4-Bromofluorobenzene 109 Limits: 70-130%06/29/23 07:421 ENM V34795
Surrogate: 4-Bromofluorobenzene 96.9 Limits: 70-130%06/29/23 01:3450 ENM V34795
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 32 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-10
99273 Matrix:
6/22/2023 10:04
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00 V34850 06/27/23 09:00
76.0 µg/m3 0.202 4.75Acetone 1 06/29/23 02:27 V34795ENM
<0.073 µg/m3 0.073 1.60Benzene 1 06/29/23 02:27 V34795ENM
<0.147 µg/m3 0.147 10.4Benzyl Chloride 1 06/29/23 02:27 V34795ENM
<0.150 µg/m3 0.150 3.35Bromodichloromethane 1 06/29/23 02:27 V34795ENM
<0.153 µg/m3 0.153 5.17Bromoform 1 06/29/23 02:27 V34795ENM
<0.115 µg/m3 0.115 1.94Bromomethane 1 06/29/23 02:27 V34795ENM
<0.328 µg/m3 0.328 1.111,3-Butadiene 1 06/29/23 02:27 V34795ENM
0.759 J µg/m3 0.060 6.23Carbon Disulfide 1 06/29/23 02:27 V34795ENM
<0.155 µg/m3 0.155 3.15
Carbon Tetrachloride 1 06/29/23 02:27 V34795ENM
<0.107 µg/m3 0.107 2.30Chlorobenzene 1 06/29/23 02:27 V34795ENM
<0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 06/29/23 02:27 V34795ENM
<0.164 µg/m3 0.164 1.32Chloroethane 1 06/29/23 02:27 V34795ENM
1.43 J µg/m3 0.086 2.44Chloroform 1 06/29/23 02:27 V34795ENM
<0.067 µg/m3 0.067 1.03Chloromethane 1 06/29/23 02:27 V34795ENM
<0.161 µg/m3 0.161 3.44Cyclohexane 1 06/29/23 02:27 V34795ENM
<0.151 µg/m3 0.151 3.84
1,2-Dibromoethane 1 06/29/23 02:27 V34795ENM
<0.096 µg/m3 0.096 3.011,2-Dichlorobenzene 1 06/29/23 02:27 V34795ENM
<0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 06/29/23 02:27 V34795ENM
<0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 06/29/23 02:27 V34795ENM
2.57 µg/m3 0.134 2.47Dichlorodifluoromethane 1 06/29/23 02:27 V34795ENM
<0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 06/29/23 02:27 V34795ENM
<0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 06/29/23 02:27 V34795ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 33 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-10
99273 Matrix:
6/22/2023 10:04
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00 V34850 06/27/23 09:00
<0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 06/29/23 02:27 V34795ENM
<0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 06/29/23 02:27 V34795ENM
<0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 06/29/23 02:27 V34795ENM
<0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 06/29/23 02:27 V34795ENM
<0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 06/29/23 02:27 V34795ENM
<0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 06/29/23 02:27 V34795ENM
<0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 06/29/23 02:27 V34795ENM
<0.435 µg/m3 0.435 1.801,4-Dioxane 1 06/29/23 02:27 V34795ENM
14.8 µg/m3 0.136 1.80
Ethyl Acetate 1 06/29/23 02:27 V34795ENM
0.534 J µg/m3 0.106 2.17Ethylbenzene 1 06/29/23 02:27 V34795ENM
<0.128 µg/m3 0.128 2.464-Ethyltoluene 1 06/29/23 02:27 V34795ENM
<0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 06/29/23 02:27 V34795ENM
0.356 J µg/m3 0.143 2.05Heptane 1 06/29/23 02:27 V34795ENM
<0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 06/29/23 02:27 V34795ENM
0.437 J µg/m3 0.047 1.76n-Hexane 1 06/29/23 02:27 V34795ENM
<0.285 µg/m3 0.285 2.05
2-Hexanone 1 06/29/23 02:27 V34795ENM
3.48 J µg/m3 0.139 4.92Isopropyl Alcohol 1 06/29/23 02:27 V34795ENM
274 µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 06/28/23 00:55 V34855ENM
<0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 06/29/23 02:27 V34795ENM
<0.121 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 06/29/23 02:27 V34795ENM
<0.488 µg/m3 0.488 1.74Methylene Chloride 1 06/29/23 02:27 V34795ENM
<0.183 µg/m3 0.183 2.62Naphthalene 1 06/29/23 02:27 V34795ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 34 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-10
99273 Matrix:
6/22/2023 10:04
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34794 06/28/23 09:00 V34850 06/27/23 09:00
<0.242 µg/m3 0.242 0.860Propene 1 06/29/23 02:27 V34795ENM
<0.124 µg/m3 0.124 2.13Styrene 1 06/29/23 02:27 V34795ENM
<0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 06/29/23 02:27 V34795ENM
<0.181 µg/m3 0.181 3.39Tetrachloroethene 1 06/29/23 02:27 V34795ENM
601 µg/m3 2.14 29.5Tetrahydrofuran 20 06/28/23 00:55 V34855ENM
5.04 µg/m3 0.090 1.88Toluene 1 06/29/23 02:27 V34795ENM
<0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 06/29/23 02:27 V34795ENM
<0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 06/29/23 02:27 V34795ENM
<0.087 µg/m3 0.087 2.73
1,1,2-Trichloroethane 1 06/29/23 02:27 V34795ENM
<0.199 µg/m3 0.199 2.15Trichloroethene 1 06/29/23 02:27 V34795ENM
2.00 J µg/m3 0.130 2.81Trichlorofluoromethane 1 06/29/23 02:27 V34795ENM
0.535 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 06/29/23 02:27 V34795ENM
<0.236 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 06/29/23 02:27 V34795ENM
<0.224 µg/m3 0.224 1.76Vinyl Acetate 1 06/29/23 02:27 V34795ENM
<0.127 µg/m3 0.127 1.28Vinyl Chloride 1 06/29/23 02:27 V34795ENM
0.673 J
µg/m3 0.157 2.17
o-Xylene 1 06/29/23 02:27 V34795ENM
2.34 J µg/m3 0.217 5.65m,p-Xylene 1 06/29/23 02:27 V34795ENM
3.01 J µg/m3 0.157 2.17Xylene (Total)1 06/29/23 02:27 V34795
Surrogate: 4-Bromofluorobenzene 112 Limits: 70-130%06/29/23 02:271 ENM V34795
Surrogate: 4-Bromofluorobenzene 97.8 Limits: 70-130%06/28/23 00:5520 ENM V34855
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 35 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-8
99274 Matrix:
6/22/2023 15:35
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34836 06/29/23 09:00 V34860 06/28/23 09:00
93.1 µg/m3 0.404 9.50Acetone 2 06/29/23 13:35 V34837ENM
<0.146 µg/m3 0.146 3.19Benzene 2 06/29/23 13:35 V34837ENM
<0.293 µg/m3 0.293 20.7Benzyl Chloride 2 06/29/23 13:35 V34837ENM
1.23 J µg/m3 0.299 6.70Bromodichloromethane 2 06/29/23 13:35 V34837ENM
<0.304 µg/m3 0.304 10.3Bromoform 2 06/29/23 13:35 V34837ENM
<0.229 µg/m3 0.229 3.88Bromomethane 2 06/29/23 13:35 V34837ENM
<0.653 µg/m3 0.653 2.211,3-Butadiene 2 06/29/23 13:35 V34837ENM
0.741 J µg/m3 0.122 12.5Carbon Disulfide 2 06/29/23 13:35 V34837ENM
<0.309 µg/m3 0.309 6.29
Carbon Tetrachloride 2 06/29/23 13:35 V34837ENM
<0.213 µg/m3 0.213 4.60Chlorobenzene 2 06/29/23 13:35 V34837ENM
<0.416 µg/m3 0.416 8.52Chlorodibromomethane 2 06/29/23 13:35 V34837ENM
<0.328 µg/m3 0.328 2.64Chloroethane 2 06/29/23 13:35 V34837ENM
12.8 µg/m3 0.172 4.88Chloroform 2 06/29/23 13:35 V34837ENM
0.631 J µg/m3 0.134 2.06Chloromethane 2 06/29/23 13:35 V34837ENM
<0.321 µg/m3 0.321 6.88Cyclohexane 2 06/29/23 13:35 V34837ENM
<0.301 µg/m3 0.301 7.68
1,2-Dibromoethane 2 06/29/23 13:35 V34837ENM
<0.192 µg/m3 0.192 6.011,2-Dichlorobenzene 2 06/29/23 13:35 V34837ENM
<0.348 µg/m3 0.348 24.11,3-Dichlorobenzene 2 06/29/23 13:35 V34837ENM
<0.371 µg/m3 0.371 6.011,4-Dichlorobenzene 2 06/29/23 13:35 V34837ENM
2.99 J µg/m3 0.267 4.94Dichlorodifluoromethane 2 06/29/23 13:35 V34837ENM
<0.202 µg/m3 0.202 4.051,1-Dichloroethane 2 06/29/23 13:35 V34837ENM
<0.258 µg/m3 0.258 4.051,2-Dichloroethane 2 06/29/23 13:35 V34837ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 36 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-8
99274 Matrix:
6/22/2023 15:35
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34836 06/29/23 09:00 V34860 06/28/23 09:00
<0.213 µg/m3 0.213 3.961,1-Dichloroethene 2 06/29/23 13:35 V34837ENM
<0.190 µg/m3 0.190 3.96cis-1,2-Dichloroethene 2 06/29/23 13:35 V34837ENM
<0.215 µg/m3 0.215 3.96trans-1,2-Dichloroethene 2 06/29/23 13:35 V34837ENM
<0.409 µg/m3 0.409 4.621,2-Dichloropropane 2 06/29/23 13:35 V34837ENM
<1.24 µg/m3 1.24 6.991,2-Dichlorotetrafluoroethane 2 06/29/23 13:35 V34837ENM
<0.356 µg/m3 0.356 4.54cis-1,3-Dichloropropene 2 06/29/23 13:35 V34837ENM
<0.356 µg/m3 0.356 4.54trans-1,3-Dichloropropene 2 06/29/23 13:35 V34837ENM
<0.869 µg/m3 0.869 3.601,4-Dioxane 2 06/29/23 13:35 V34837ENM
1.83 J
µg/m3 0.271 3.60
Ethyl Acetate 2 06/29/23 13:35 V34837ENM
<0.211 µg/m3 0.211 4.34Ethylbenzene 2 06/29/23 13:35 V34837ENM
<0.256 µg/m3 0.256 4.924-Ethyltoluene 2 06/29/23 13:35 V34837ENM
<1.12 µg/m3 1.12 7.661,1,2-Trichloro-1,2,2-trifluoroethane 2 06/29/23 13:35 V34837ENM
<0.286 µg/m3 0.286 4.10Heptane 2 06/29/23 13:35 V34837ENM
<0.662 µg/m3 0.662 10.7Hexachlorobutadiene 2 06/29/23 13:35 V34837ENM
<0.094 µg/m3 0.094 3.52n-Hexane 2 06/29/23 13:35 V34837ENM
1.22 J
µg/m3 0.570 4.10
2-Hexanone 2 06/29/23 13:35 V34837ENM
8.43 J µg/m3 0.277 9.83Isopropyl Alcohol 2 06/29/23 13:35 V34837ENM
1170 µg/m3 11.2 73.7Methyl Ethyl Ketone (MEK)50 06/29/23 03:04 V34861ENM
<0.067 µg/m3 0.067 3.61Methyl tert-butyl ether (MTBE)2 06/29/23 13:35 V34837ENM
<0.242 µg/m3 0.242 4.104-Methyl-2-Pentanone 2 06/29/23 13:35 V34837ENM
<0.975 µg/m3 0.975 3.47Methylene Chloride 2 06/29/23 13:35 V34837ENM
<0.365 µg/m3 0.365 5.24Naphthalene 2 06/29/23 13:35 V34837ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 37 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-8
99274 Matrix:
6/22/2023 15:35
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34836 06/29/23 09:00 V34860 06/28/23 09:00
<0.483 µg/m3 0.483 1.72Propene 2 06/29/23 13:35 V34837ENM
<0.248 µg/m3 0.248 4.26Styrene 2 06/29/23 13:35 V34837ENM
<0.207 µg/m3 0.207 6.861,1,2,2-Tetrachloroethane 2 06/29/23 13:35 V34837ENM
<0.361 µg/m3 0.361 6.78Tetrachloroethene 2 06/29/23 13:35 V34837ENM
4860 µg/m3 5.35 73.7Tetrahydrofuran 50 06/29/23 03:04 V34861ENM
6.63 µg/m3 0.180 3.77Toluene 2 06/29/23 13:35 V34837ENM
<0.417 µg/m3 0.417 7.421,2,4-Trichlorobenzene 2 06/29/23 13:35 V34837ENM
<0.288 µg/m3 0.288 5.461,1,1-Trichloroethane 2 06/29/23 13:35 V34837ENM
<0.175 µg/m3 0.175 5.46
1,1,2-Trichloroethane 2 06/29/23 13:35 V34837ENM
<0.398 µg/m3 0.398 4.30Trichloroethene 2 06/29/23 13:35 V34837ENM
3.16 J µg/m3 0.260 5.62Trichlorofluoromethane 2 06/29/23 13:35 V34837ENM
<0.220 µg/m3 0.220 4.921,2,4-Trimethylbenzene 2 06/29/23 13:35 V34837ENM
<0.472 µg/m3 0.472 4.921,3,5-Trimethylbenzene 2 06/29/23 13:35 V34837ENM
<0.447 µg/m3 0.447 3.52Vinyl Acetate 2 06/29/23 13:35 V34837ENM
<0.254 µg/m3 0.254 2.56Vinyl Chloride 2 06/29/23 13:35 V34837ENM
<0.313 µg/m3 0.313 4.34
o-Xylene 2 06/29/23 13:35 V34837ENM
3.16 J µg/m3 0.434 11.3m,p-Xylene 2 06/29/23 13:35 V34837ENM
3.16 J µg/m3 0.313 4.34Xylene (Total)2 06/29/23 13:35 V34837
Surrogate: 4-Bromofluorobenzene 113 Limits: 70-130%06/29/23 13:352 ENM V34837
Surrogate: 4-Bromofluorobenzene 98.9 Limits: 70-130%06/29/23 03:0450 ENM V34861
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 38 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-5
99275 Matrix:
6/22/2023 13:04
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34836 06/29/23 09:00 V34860 06/28/23 09:00
763 µg/m3 10.1 238Acetone 50 06/29/23 03:40 V34861ENM
0.523 J µg/m3 0.146 3.19Benzene 2 06/29/23 14:19 V34837ENM
<0.293 µg/m3 0.293 20.7Benzyl Chloride 2 06/29/23 14:19 V34837ENM
<0.299 µg/m3 0.299 6.70Bromodichloromethane 2 06/29/23 14:19 V34837ENM
<0.304 µg/m3 0.304 10.3Bromoform 2 06/29/23 14:19 V34837ENM
<0.229 µg/m3 0.229 3.88Bromomethane 2 06/29/23 14:19 V34837ENM
<0.653 µg/m3 0.653 2.211,3-Butadiene 2 06/29/23 14:19 V34837ENM
1.25 J µg/m3 0.122 12.5Carbon Disulfide 2 06/29/23 14:19 V34837ENM
<0.309 µg/m3 0.309 6.29
Carbon Tetrachloride 2 06/29/23 14:19 V34837ENM
<0.213 µg/m3 0.213 4.60Chlorobenzene 2 06/29/23 14:19 V34837ENM
<0.416 µg/m3 0.416 8.52Chlorodibromomethane 2 06/29/23 14:19 V34837ENM
<0.328 µg/m3 0.328 2.64Chloroethane 2 06/29/23 14:19 V34837ENM
22.5 µg/m3 0.172 4.88Chloroform 2 06/29/23 14:19 V34837ENM
1.65 J µg/m3 0.134 2.06Chloromethane 2 06/29/23 14:19 V34837ENM
<0.321 µg/m3 0.321 6.88Cyclohexane 2 06/29/23 14:19 V34837ENM
<0.301 µg/m3 0.301 7.68
1,2-Dibromoethane 2 06/29/23 14:19 V34837ENM
<0.192 µg/m3 0.192 6.011,2-Dichlorobenzene 2 06/29/23 14:19 V34837ENM
<0.348 µg/m3 0.348 24.11,3-Dichlorobenzene 2 06/29/23 14:19 V34837ENM
<0.371 µg/m3 0.371 6.011,4-Dichlorobenzene 2 06/29/23 14:19 V34837ENM
2.54 J µg/m3 0.267 4.94Dichlorodifluoromethane 2 06/29/23 14:19 V34837ENM
<0.202 µg/m3 0.202 4.051,1-Dichloroethane 2 06/29/23 14:19 V34837ENM
<0.258 µg/m3 0.258 4.051,2-Dichloroethane 2 06/29/23 14:19 V34837ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 39 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-5
99275 Matrix:
6/22/2023 13:04
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34836 06/29/23 09:00 V34860 06/28/23 09:00
<0.213 µg/m3 0.213 3.961,1-Dichloroethene 2 06/29/23 14:19 V34837ENM
<0.190 µg/m3 0.190 3.96cis-1,2-Dichloroethene 2 06/29/23 14:19 V34837ENM
<0.215 µg/m3 0.215 3.96trans-1,2-Dichloroethene 2 06/29/23 14:19 V34837ENM
<0.409 µg/m3 0.409 4.621,2-Dichloropropane 2 06/29/23 14:19 V34837ENM
<1.24 µg/m3 1.24 6.991,2-Dichlorotetrafluoroethane 2 06/29/23 14:19 V34837ENM
<0.356 µg/m3 0.356 4.54cis-1,3-Dichloropropene 2 06/29/23 14:19 V34837ENM
<0.356 µg/m3 0.356 4.54trans-1,3-Dichloropropene 2 06/29/23 14:19 V34837ENM
<0.869 µg/m3 0.869 3.601,4-Dioxane 2 06/29/23 14:19 V34837ENM
<0.271 µg/m3 0.271 3.60
Ethyl Acetate 2 06/29/23 14:19 V34837ENM
1.53 J µg/m3 0.211 4.34Ethylbenzene 2 06/29/23 14:19 V34837ENM
<0.256 µg/m3 0.256 4.924-Ethyltoluene 2 06/29/23 14:19 V34837ENM
<1.12 µg/m3 1.12 7.661,1,2-Trichloro-1,2,2-trifluoroethane 2 06/29/23 14:19 V34837ENM
1.12 J µg/m3 0.286 4.10Heptane 2 06/29/23 14:19 V34837ENM
<0.662 µg/m3 0.662 10.7Hexachlorobutadiene 2 06/29/23 14:19 V34837ENM
<0.094 µg/m3 0.094 3.52n-Hexane 2 06/29/23 14:19 V34837ENM
5.75 µg/m3 0.570 4.10
2-Hexanone 2 06/29/23 14:19 V34837ENM
103 µg/m3 0.277 9.83Isopropyl Alcohol 2 06/29/23 14:19 V34837ENM
3780 µg/m3 11.2 73.7Methyl Ethyl Ketone (MEK)50 06/29/23 03:40 V34861ENM
<0.067 µg/m3 0.067 3.61Methyl tert-butyl ether (MTBE)2 06/29/23 14:19 V34837ENM
1.45 J µg/m3 0.242 4.104-Methyl-2-Pentanone 2 06/29/23 14:19 V34837ENM
<0.975 µg/m3 0.975 3.47Methylene Chloride 2 06/29/23 14:19 V34837ENM
<0.365 µg/m3 0.365 5.24Naphthalene 2 06/29/23 14:19 V34837ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 40 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-5
99275 Matrix:
6/22/2023 13:04
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34836 06/29/23 09:00 V34860 06/28/23 09:00
<0.483 µg/m3 0.483 1.72Propene 2 06/29/23 14:19 V34837ENM
5.95 µg/m3 0.248 4.26Styrene 2 06/29/23 14:19 V34837ENM
<0.207 µg/m3 0.207 6.861,1,2,2-Tetrachloroethane 2 06/29/23 14:19 V34837ENM
3.64 J µg/m3 0.361 6.78Tetrachloroethene 2 06/29/23 14:19 V34837ENM
4180 µg/m3 5.35 73.7Tetrahydrofuran 50 06/29/23 03:40 V34861ENM
28.7 µg/m3 0.180 3.77Toluene 2 06/29/23 14:19 V34837ENM
<0.417 µg/m3 0.417 7.421,2,4-Trichlorobenzene 2 06/29/23 14:19 V34837ENM
<0.288 µg/m3 0.288 5.461,1,1-Trichloroethane 2 06/29/23 14:19 V34837ENM
<0.175 µg/m3 0.175 5.46
1,1,2-Trichloroethane 2 06/29/23 14:19 V34837ENM
<0.398 µg/m3 0.398 4.30Trichloroethene 2 06/29/23 14:19 V34837ENM
2.72 J µg/m3 0.260 5.62Trichlorofluoromethane 2 06/29/23 14:19 V34837ENM
2.03 J µg/m3 0.220 4.921,2,4-Trimethylbenzene 2 06/29/23 14:19 V34837ENM
<0.472 µg/m3 0.472 4.921,3,5-Trimethylbenzene 2 06/29/23 14:19 V34837ENM
<0.447 µg/m3 0.447 3.52Vinyl Acetate 2 06/29/23 14:19 V34837ENM
<0.254 µg/m3 0.254 2.56Vinyl Chloride 2 06/29/23 14:19 V34837ENM
2.26 J
µg/m3 0.313 4.34
o-Xylene 2 06/29/23 14:19 V34837ENM
7.61 J µg/m3 0.434 11.3m,p-Xylene 2 06/29/23 14:19 V34837ENM
9.87 J µg/m3 0.313 4.34Xylene (Total)2 06/29/23 14:19 V34837
Surrogate: 4-Bromofluorobenzene 107 Limits: 70-130%06/29/23 14:192 ENM V34837
Surrogate: 4-Bromofluorobenzene 98.0 Limits: 70-130%06/29/23 03:4050 ENM V34861
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 41 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-9
99276 Matrix:
6/22/2023 14:58
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34838 06/28/23 09:00 V34850 06/27/23 09:00
38.8 µg/m3 0.202 4.75Acetone 1 06/29/23 04:32 V34842ENM
0.696 J µg/m3 0.073 1.60Benzene 1 06/29/23 04:32 V34842ENM
<0.147 µg/m3 0.147 10.4Benzyl Chloride 1 06/29/23 04:32 V34842ENM
1.39 J µg/m3 0.150 3.35Bromodichloromethane 1 06/29/23 04:32 V34842ENM
<0.153 µg/m3 0.153 5.17Bromoform 1 06/29/23 04:32 V34842ENM
<0.115 µg/m3 0.115 1.94Bromomethane 1 06/29/23 04:32 V34842ENM
<0.328 µg/m3 0.328 1.111,3-Butadiene 1 06/29/23 04:32 V34842ENM
1.26 J µg/m3 0.060 6.23Carbon Disulfide 1 06/29/23 04:32 V34842ENM
<0.155 µg/m3 0.155 3.15
Carbon Tetrachloride 1 06/29/23 04:32 V34842ENM
<0.107 µg/m3 0.107 2.30Chlorobenzene 1 06/29/23 04:32 V34842ENM
<0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 06/29/23 04:32 V34842ENM
<0.164 µg/m3 0.164 1.32Chloroethane 1 06/29/23 04:32 V34842ENM
26.7 µg/m3 0.086 2.44Chloroform 1 06/29/23 04:32 V34842ENM
<0.067 µg/m3 0.067 1.03Chloromethane 1 06/29/23 04:32 V34842ENM
1.92 J µg/m3 0.161 3.44Cyclohexane 1 06/29/23 04:32 V34842ENM
<0.151 µg/m3 0.151 3.84
1,2-Dibromoethane 1 06/29/23 04:32 V34842ENM
<0.096 µg/m3 0.096 3.011,2-Dichlorobenzene 1 06/29/23 04:32 V34842ENM
<0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 06/29/23 04:32 V34842ENM
<0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 06/29/23 04:32 V34842ENM
3.14 µg/m3 0.134 2.47Dichlorodifluoromethane 1 06/29/23 04:32 V34842ENM
<0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 06/29/23 04:32 V34842ENM
<0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 06/29/23 04:32 V34842ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 42 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-9
99276 Matrix:
6/22/2023 14:58
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34838 06/28/23 09:00 V34850 06/27/23 09:00
<0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 06/29/23 04:32 V34842ENM
<0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 06/29/23 04:32 V34842ENM
<0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 06/29/23 04:32 V34842ENM
0.563 J µg/m3 0.205 2.311,2-Dichloropropane 1 06/29/23 04:32 V34842ENM
<0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 06/29/23 04:32 V34842ENM
<0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 06/29/23 04:32 V34842ENM
<0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 06/29/23 04:32 V34842ENM
<0.435 µg/m3 0.435 1.801,4-Dioxane 1 06/29/23 04:32 V34842ENM
1.92 µg/m3 0.136 1.80
Ethyl Acetate 1 06/29/23 04:32 V34842ENM
0.325 J µg/m3 0.106 2.17Ethylbenzene 1 06/29/23 04:32 V34842ENM
<0.128 µg/m3 0.128 2.464-Ethyltoluene 1 06/29/23 04:32 V34842ENM
<0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 06/29/23 04:32 V34842ENM
0.651 J µg/m3 0.143 2.05Heptane 1 06/29/23 04:32 V34842ENM
<0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 06/29/23 04:32 V34842ENM
1.67 J µg/m3 0.047 1.76n-Hexane 1 06/29/23 04:32 V34842ENM
<0.285 µg/m3 0.285 2.05
2-Hexanone 1 06/29/23 04:32 V34842ENM
7.90 µg/m3 0.139 4.92Isopropyl Alcohol 1 06/29/23 04:32 V34842ENM
141 µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 06/28/23 02:45 V34855ENM
<0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 06/29/23 04:32 V34842ENM
0.331 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 06/29/23 04:32 V34842ENM
4.93 µg/m3 0.488 1.74Methylene Chloride 1 06/29/23 04:32 V34842ENM
<0.183 µg/m3 0.183 2.62Naphthalene 1 06/29/23 04:32 V34842ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 43 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-9
99276 Matrix:
6/22/2023 14:58
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34838 06/28/23 09:00 V34850 06/27/23 09:00
<0.242 µg/m3 0.242 0.860Propene 1 06/29/23 04:32 V34842ENM
<0.124 µg/m3 0.124 2.13Styrene 1 06/29/23 04:32 V34842ENM
<0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 06/29/23 04:32 V34842ENM
<0.181 µg/m3 0.181 3.39Tetrachloroethene 1 06/29/23 04:32 V34842ENM
375 µg/m3 2.14 29.5Tetrahydrofuran 20 06/28/23 02:45 V34855ENM
4.12 µg/m3 0.090 1.88Toluene 1 06/29/23 04:32 V34842ENM
<0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 06/29/23 04:32 V34842ENM
<0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 06/29/23 04:32 V34842ENM
<0.087 µg/m3 0.087 2.73
1,1,2-Trichloroethane 1 06/29/23 04:32 V34842ENM
<0.199 µg/m3 0.199 2.15Trichloroethene 1 06/29/23 04:32 V34842ENM
4.26 µg/m3 0.130 2.81Trichlorofluoromethane 1 06/29/23 04:32 V34842ENM
0.511 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 06/29/23 04:32 V34842ENM
<0.236 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 06/29/23 04:32 V34842ENM
<0.224 µg/m3 0.224 1.76Vinyl Acetate 1 06/29/23 04:32 V34842ENM
<0.127 µg/m3 0.127 1.28Vinyl Chloride 1 06/29/23 04:32 V34842ENM
0.503 J
µg/m3 0.157 2.17
o-Xylene 1 06/29/23 04:32 V34842ENM
2.13 J µg/m3 0.217 5.65m,p-Xylene 1 06/29/23 04:32 V34842ENM
2.63 J µg/m3 0.157 2.17Xylene (Total)1 06/29/23 04:32 V34842
Surrogate: 4-Bromofluorobenzene 107 Limits: 70-130%06/29/23 04:321 ENM V34842
Surrogate: 4-Bromofluorobenzene 94.4 Limits: 70-130%06/28/23 02:4520 ENM V34855
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 44 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-1
99277 Matrix:
6/22/2023 9:20
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34863 06/30/23 09:00 V34907 06/29/23 09:00
46.5 µg/m3 0.202 4.75Acetone 1 06/30/23 14:29 V34864ENM
3.56 µg/m3 0.073 1.60Benzene 1 06/30/23 14:29 V34864ENM
<0.147 µg/m3 0.147 10.4Benzyl Chloride 1 06/30/23 14:29 V34864ENM
<0.150 µg/m3 0.150 3.35Bromodichloromethane 1 06/30/23 14:29 V34864ENM
<0.153 µg/m3 0.153 5.17Bromoform 1 06/30/23 14:29 V34864ENM
<0.115 µg/m3 0.115 1.94Bromomethane 1 06/30/23 14:29 V34864ENM
<0.328 µg/m3 0.328 1.111,3-Butadiene 1 06/30/23 14:29 V34864ENM
2.54 J µg/m3 0.060 6.23Carbon Disulfide 1 06/30/23 14:29 V34864ENM
<0.155 µg/m3 0.155 3.15
Carbon Tetrachloride 1 06/30/23 14:29 V34864ENM
<0.107 µg/m3 0.107 2.30Chlorobenzene 1 06/30/23 14:29 V34864ENM
<0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 06/30/23 14:29 V34864ENM
<0.164 µg/m3 0.164 1.32Chloroethane 1 06/30/23 14:29 V34864ENM
51.3 µg/m3 0.086 2.44Chloroform 1 06/30/23 14:29 V34864ENM
<0.067 µg/m3 0.067 1.03Chloromethane 1 06/30/23 14:29 V34864ENM
3.19 J µg/m3 0.161 3.44Cyclohexane 1 06/30/23 14:29 V34864ENM
<0.151 µg/m3 0.151 3.84
1,2-Dibromoethane 1 06/30/23 14:29 V34864ENM
<0.096 µg/m3 0.096 3.011,2-Dichlorobenzene 1 06/30/23 14:29 V34864ENM
<0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 06/30/23 14:29 V34864ENM
1.02 J µg/m3 0.186 3.011,4-Dichlorobenzene 1 06/30/23 14:29 V34864ENM
<0.134 µg/m3 0.134 2.47Dichlorodifluoromethane 1 06/30/23 14:29 V34864ENM
<0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 06/30/23 14:29 V34864ENM
<0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 06/30/23 14:29 V34864ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 45 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-1
99277 Matrix:
6/22/2023 9:20
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34863 06/30/23 09:00 V34907 06/29/23 09:00
<0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 06/30/23 14:29 V34864ENM
4.47 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 06/30/23 14:29 V34864ENM
<0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 06/30/23 14:29 V34864ENM
2.45 µg/m3 0.205 2.311,2-Dichloropropane 1 06/30/23 14:29 V34864ENM
58.5 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 06/30/23 14:29 V34864ENM
<0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 06/30/23 14:29 V34864ENM
<0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 06/30/23 14:29 V34864ENM
<0.435 µg/m3 0.435 1.801,4-Dioxane 1 06/30/23 14:29 V34864ENM
<0.136 µg/m3 0.136 1.80
Ethyl Acetate 1 06/30/23 14:29 V34864ENM
24.7 µg/m3 0.106 2.17Ethylbenzene 1 06/30/23 14:29 V34864ENM
<0.128 µg/m3 0.128 2.464-Ethyltoluene 1 06/30/23 14:29 V34864ENM
<0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 06/30/23 14:29 V34864ENM
0.848 J µg/m3 0.143 2.05Heptane 1 06/30/23 14:29 V34864ENM
<0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 06/30/23 14:29 V34864ENM
2.07 µg/m3 0.047 1.76n-Hexane 1 06/30/23 14:29 V34864ENM
<0.285 µg/m3 0.285 2.05
2-Hexanone 1 06/30/23 14:29 V34864ENM
289 µg/m3 2.78 98.3Isopropyl Alcohol 20 06/29/23 23:33 V34909ENM
1.76 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 06/30/23 14:29 V34864ENM
0.407 J µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 06/30/23 14:29 V34864ENM
0.356 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 06/30/23 14:29 V34864ENM
3.84 µg/m3 0.488 1.74Methylene Chloride 1 06/30/23 14:29 V34864ENM
<0.183 µg/m3 0.183 2.62Naphthalene 1 06/30/23 14:29 V34864ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 46 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:SS-MP-1
99277 Matrix:
6/22/2023 9:20
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V34863 06/30/23 09:00 V34907 06/29/23 09:00
<0.242 µg/m3 0.242 0.860Propene 1 06/30/23 14:29 V34864ENM
4.60 µg/m3 0.124 2.13Styrene 1 06/30/23 14:29 V34864ENM
<0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 06/30/23 14:29 V34864ENM
3.14 JB µg/m3 0.181 3.39Tetrachloroethene 1 06/30/23 14:29 V34864ENM
22.2 µg/m3 0.107 1.47Tetrahydrofuran 1 06/30/23 14:29 V34864ENM
15.1 µg/m3 0.090 1.88Toluene 1 06/30/23 14:29 V34864ENM
<0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 06/30/23 14:29 V34864ENM
<0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 06/30/23 14:29 V34864ENM
<0.087 µg/m3 0.087 2.73
1,1,2-Trichloroethane 1 06/30/23 14:29 V34864ENM
0.999 J µg/m3 0.199 2.15Trichloroethene 1 06/30/23 14:29 V34864ENM
20.2 µg/m3 0.130 2.81Trichlorofluoromethane 1 06/30/23 14:29 V34864ENM
1.27 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 06/30/23 14:29 V34864ENM
<0.236 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 06/30/23 14:29 V34864ENM
<0.224 µg/m3 0.224 1.76Vinyl Acetate 1 06/30/23 14:29 V34864ENM
<0.127 µg/m3 0.127 1.28Vinyl Chloride 1 06/30/23 14:29 V34864ENM
9.09 µg/m3 0.157 2.17
o-Xylene 1 06/30/23 14:29 V34864ENM
33.2 µg/m3 0.217 5.65m,p-Xylene 1 06/30/23 14:29 V34864ENM
42.3 µg/m3 0.157 2.17Xylene (Total)1 06/30/23 14:29 V34864
Surrogate: 4-Bromofluorobenzene 92.5 Limits: 70-130%06/30/23 14:291 ENM V34864
Surrogate: 4-Bromofluorobenzene 94.7 Limits: 70-130%06/29/23 23:3320 ENM V34909
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 47 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:IAS-3
99278 Matrix:
6/21/2023 8:23
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V35063 06/29/23 09:00 V35191 07/11/23 09:00
387 µg/m3 4.04 95.0Acetone 20 07/11/23 11:24 V35195ENM
0.721 J µg/m3 0.073 1.60Benzene 1 06/30/23 00:22 V35067ENM
<0.150 µg/m3 0.150 3.35Bromodichloromethane 1 06/30/23 00:22 V35067ENM
1.18 J µg/m3 0.060 6.23Carbon Disulfide 1 06/30/23 00:22 V35067ENM
0.786 J µg/m3 0.086 2.44Chloroform 1 06/30/23 00:22 V35067ENM
1.08 µg/m3 0.067 1.03Chloromethane 1 06/30/23 00:22 V35067ENM
<0.161 µg/m3 0.161 3.44Cyclohexane 1 06/30/23 00:22 V35067ENM
<0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 06/30/23 00:22 V35067ENM
2.43 J
µg/m3 0.134 2.47
Dichlorodifluoromethane 1 06/30/23 00:22 V35067ENM
<0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 06/30/23 00:22 V35067ENM
<0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 06/30/23 00:22 V35524ENM
<0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 06/30/23 00:22 V35067ENM
2.55 µg/m3 0.136 1.80Ethyl Acetate 1 06/30/23 00:22 V35067ENM
3.07 µg/m3 0.106 2.17Ethylbenzene 1 06/30/23 00:22 V35067ENM
<0.128 µg/m3 0.128 2.464-Ethyltoluene 1 06/30/23 00:22 V35067ENM
5.45 µg/m3 0.143 2.05
Heptane 1 06/30/23 00:22 V35067ENM
1.85 µg/m3 0.047 1.76n-Hexane 1 06/30/23 00:22 V35067ENM
5.28 µg/m3 0.285 2.052-Hexanone 1 06/30/23 00:22 V35067ENM
134 µg/m3 2.78 98.3Isopropyl Alcohol 20 07/11/23 11:24 V35195ENM
41.1 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 06/30/23 00:22 V35067ENM
<0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 06/30/23 00:22 V35067ENM
1.17 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 06/30/23 00:22 V35067ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 48 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:IAS-3
99278 Matrix:
6/21/2023 8:23
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V35063 06/29/23 09:00 V35191 07/11/23 09:00
<0.488 µg/m3 0.488 1.74Methylene Chloride 1 06/30/23 00:22 V35067ENM
<0.183 µg/m3 0.183 2.62Naphthalene 1 06/30/23 00:22 V35067ENM
7.19 µg/m3 0.124 2.13Styrene 1 06/30/23 00:22 V35067ENM
0.922 J µg/m3 0.181 3.39Tetrachloroethene 1 06/30/23 00:22 V35067ENM
20.6 µg/m3 0.107 1.47Tetrahydrofuran 1 06/30/23 00:22 V35067ENM
57.3 µg/m3 0.090 1.88Toluene 1 06/30/23 00:22 V35524ENM
<0.199 µg/m3 0.199 2.15Trichloroethene 1 06/30/23 00:22 V35067ENM
1.54 J µg/m3 0.130 2.81Trichlorofluoromethane 1 06/30/23 00:22 V35067ENM
3.80 µg/m3 0.110 2.46
1,2,4-Trimethylbenzene 1 06/30/23 00:22 V35067ENM
0.924 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 06/30/23 00:22 V35067ENM
3.92 µg/m3 0.157 2.17o-Xylene 1 06/30/23 00:22 V35067ENM
13.2 µg/m3 0.217 5.65m,p-Xylene 1 06/30/23 00:22 V35067ENM
17.1 µg/m3 0.157 2.17Xylene (Total)1 06/30/23 00:22 V35067
Surrogate: 4-Bromofluorobenzene 96.4 Limits: 70-130%06/30/23 00:221 ENM V35067
Surrogate: 4-Bromofluorobenzene 96.4 Limits: 70-130%06/30/23 00:221 ENM V35524
Surrogate: 4-Bromofluorobenzene 94.4 Limits: 70-130%07/11/23 11:2420 ENM V35195
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 49 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:IAS-DUP
99279 Matrix:
6/21/2023 0:00
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V35057 07/06/23 09:00 V35230 07/11/23 09:00
360 µg/m3 4.04 95.0Acetone 20 07/11/23 12:00 V35233ENM
0.690 JB µg/m3 0.073 1.60Benzene 1 07/06/23 22:28 V35062ENM
<0.150 µg/m3 0.150 3.35Bromodichloromethane 1 07/06/23 22:28 V35062ENM
0.688 JB µg/m3 0.060 6.23Carbon Disulfide 1 07/06/23 22:28 V35062ENM
0.800 J µg/m3 0.086 2.44Chloroform 1 07/06/23 22:28 V35062ENM
1.14 µg/m3 0.067 1.03Chloromethane 1 07/06/23 22:28 V35062ENM
<0.161 µg/m3 0.161 3.44Cyclohexane 1 07/06/23 22:28 V35062ENM
<0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 07/06/23 22:28 V35062ENM
2.59 µg/m3 0.134 2.47
Dichlorodifluoromethane 1 07/06/23 22:28 V35062ENM
<0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 07/06/23 22:28 V35062ENM
<0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 07/06/23 22:28 V35523ENM
<0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 07/06/23 22:28 V35062ENM
3.09 µg/m3 0.136 1.80Ethyl Acetate 1 07/06/23 22:28 V35062ENM
3.23 µg/m3 0.106 2.17Ethylbenzene 1 07/06/23 22:28 V35062ENM
<0.128 µg/m3 0.128 2.464-Ethyltoluene 1 07/06/23 22:28 V35062ENM
5.36 µg/m3 0.143 2.05
Heptane 1 07/06/23 22:28 V35062ENM
2.04 µg/m3 0.047 1.76n-Hexane 1 07/06/23 22:28 V35062ENM
5.91 µg/m3 0.285 2.052-Hexanone 1 07/06/23 22:28 V35062ENM
122 µg/m3 2.78 98.3Isopropyl Alcohol 20 07/11/23 12:00 V35233ENM
43.9 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 07/06/23 22:28 V35062ENM
<0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 07/06/23 22:28 V35062ENM
1.16 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 07/06/23 22:28 V35062ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 50 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:IAS-DUP
99279 Matrix:
6/21/2023 0:00
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V35057 07/06/23 09:00 V35230 07/11/23 09:00
<0.488 µg/m3 0.488 1.74Methylene Chloride 1 07/06/23 22:28 V35062ENM
<0.183 µg/m3 0.183 2.62Naphthalene 1 07/06/23 22:28 V35062ENM
7.37 µg/m3 0.124 2.13Styrene 1 07/06/23 22:28 V35062ENM
0.732 J µg/m3 0.181 3.39Tetrachloroethene 1 07/06/23 22:28 V35062ENM
21.7 µg/m3 0.107 1.47Tetrahydrofuran 1 07/06/23 22:28 V35062ENM
57.1 µg/m3 0.090 1.88Toluene 1 07/06/23 22:28 V35523ENM
<0.199 µg/m3 0.199 2.15Trichloroethene 1 07/06/23 22:28 V35062ENM
1.57 J µg/m3 0.130 2.81Trichlorofluoromethane 1 07/06/23 22:28 V35062ENM
5.05 µg/m3 0.110 2.46
1,2,4-Trimethylbenzene 1 07/06/23 22:28 V35062ENM
0.933 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 07/06/23 22:28 V35062ENM
4.07 µg/m3 0.157 2.17o-Xylene 1 07/06/23 22:28 V35062ENM
13.7 µg/m3 0.217 5.65m,p-Xylene 1 07/06/23 22:28 V35062ENM
17.8 µg/m3 0.157 2.17Xylene (Total)1 07/06/23 22:28 V35062
Surrogate: 4-Bromofluorobenzene 97.8 Limits: 70-130%07/06/23 22:281 ENM V35062
Surrogate: 4-Bromofluorobenzene 97.8 Limits: 70-130%07/06/23 22:281 ENM V35523
Surrogate: 4-Bromofluorobenzene 94.1 Limits: 70-130%07/11/23 12:0020 ENM V35233
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 51 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:IAS-1
99280 Matrix:
6/21/2023 8:24
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V35057 07/06/23 09:00 V35230 07/11/23 09:00
458 µg/m3 4.04 95.0Acetone 20 07/11/23 12:36 V35233ENM
0.836 JB µg/m3 0.073 1.60Benzene 1 07/06/23 23:19 V35062ENM
<0.150 µg/m3 0.150 3.35Bromodichloromethane 1 07/06/23 23:19 V35062ENM
0.909 JB µg/m3 0.060 6.23Carbon Disulfide 1 07/06/23 23:19 V35062ENM
<0.086 µg/m3 0.086 2.44Chloroform 1 07/06/23 23:19 V35062ENM
0.999 J µg/m3 0.067 1.03Chloromethane 1 07/06/23 23:19 V35062ENM
<0.161 µg/m3 0.161 3.44Cyclohexane 1 07/06/23 23:19 V35062ENM
<0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 07/06/23 23:19 V35062ENM
2.65 µg/m3 0.134 2.47
Dichlorodifluoromethane 1 07/06/23 23:19 V35062ENM
<0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 07/06/23 23:19 V35062ENM
<0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 07/06/23 23:19 V35523ENM
<0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 07/06/23 23:19 V35062ENM
1.20 J µg/m3 0.136 1.80Ethyl Acetate 1 07/06/23 23:19 V35062ENM
2.26 µg/m3 0.106 2.17Ethylbenzene 1 07/06/23 23:19 V35062ENM
<0.128 µg/m3 0.128 2.464-Ethyltoluene 1 07/06/23 23:19 V35062ENM
7.48 µg/m3 0.143 2.05
Heptane 1 07/06/23 23:19 V35062ENM
2.65 µg/m3 0.047 1.76n-Hexane 1 07/06/23 23:19 V35062ENM
5.79 µg/m3 0.285 2.052-Hexanone 1 07/06/23 23:19 V35062ENM
56.5 µg/m3 0.139 4.92Isopropyl Alcohol 1 07/06/23 23:19 V35062ENM
30.0 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 07/06/23 23:19 V35062ENM
<0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 07/06/23 23:19 V35062ENM
1.32 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 07/06/23 23:19 V35062ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 52 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:IAS-1
99280 Matrix:
6/21/2023 8:24
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V35057 07/06/23 09:00 V35230 07/11/23 09:00
<0.488 µg/m3 0.488 1.74Methylene Chloride 1 07/06/23 23:19 V35062ENM
<0.183 µg/m3 0.183 2.62Naphthalene 1 07/06/23 23:19 V35062ENM
9.77 µg/m3 0.124 2.13Styrene 1 07/06/23 23:19 V35062ENM
<0.181 µg/m3 0.181 3.39Tetrachloroethene 1 07/06/23 23:19 V35062ENM
17.3 µg/m3 0.107 1.47Tetrahydrofuran 1 07/06/23 23:19 V35062ENM
57.0 µg/m3 0.090 1.88Toluene 1 07/06/23 23:19 V35523ENM
<0.199 µg/m3 0.199 2.15Trichloroethene 1 07/06/23 23:19 V35062ENM
1.73 J µg/m3 0.130 2.81Trichlorofluoromethane 1 07/06/23 23:19 V35062ENM
4.42 µg/m3 0.110 2.46
1,2,4-Trimethylbenzene 1 07/06/23 23:19 V35062ENM
0.904 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 07/06/23 23:19 V35062ENM
2.58 µg/m3 0.157 2.17o-Xylene 1 07/06/23 23:19 V35062ENM
8.34 µg/m3 0.217 5.65m,p-Xylene 1 07/06/23 23:19 V35062ENM
10.9 µg/m3 0.157 2.17Xylene (Total)1 07/06/23 23:19 V35062
Surrogate: 4-Bromofluorobenzene 95.8 Limits: 70-130%07/06/23 23:191 ENM V35062
Surrogate: 4-Bromofluorobenzene 95.8 Limits: 70-130%07/06/23 23:191 ENM V35523
Surrogate: 4-Bromofluorobenzene 94.1 Limits: 70-130%07/11/23 12:3620 ENM V35233
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 53 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:IAS-BKG
99281 Matrix:
6/21/2023 8:25
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V35057 07/06/23 09:00
21.3 µg/m3 0.202 4.75Acetone 1 07/07/23 00:07 V35062ENM
0.485 JB µg/m3 0.073 1.60Benzene 1 07/07/23 00:07 V35062ENM
<0.150 µg/m3 0.150 3.35Bromodichloromethane 1 07/07/23 00:07 V35062ENM
0.295 JB µg/m3 0.060 6.23Carbon Disulfide 1 07/07/23 00:07 V35062ENM
<0.086 µg/m3 0.086 2.44Chloroform 1 07/07/23 00:07 V35062ENM
0.850 J µg/m3 0.067 1.03Chloromethane 1 07/07/23 00:07 V35062ENM
<0.161 µg/m3 0.161 3.44Cyclohexane 1 07/07/23 00:07 V35062ENM
<0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 07/07/23 00:07 V35062ENM
2.59 µg/m3 0.134 2.47
Dichlorodifluoromethane 1 07/07/23 00:07 V35062ENM
<0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 07/07/23 00:07 V35062ENM
<0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 07/07/23 00:07 V35523ENM
<0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 07/07/23 00:07 V35062ENM
<0.136 µg/m3 0.136 1.80Ethyl Acetate 1 07/07/23 00:07 V35062ENM
<0.106 µg/m3 0.106 2.17Ethylbenzene 1 07/07/23 00:07 V35062ENM
<0.128 µg/m3 0.128 2.464-Ethyltoluene 1 07/07/23 00:07 V35062ENM
<0.143 µg/m3 0.143 2.05
Heptane 1 07/07/23 00:07 V35062ENM
<0.047 µg/m3 0.047 1.76n-Hexane 1 07/07/23 00:07 V35062ENM
<0.285 µg/m3 0.285 2.052-Hexanone 1 07/07/23 00:07 V35062ENM
2.09 J µg/m3 0.139 4.92Isopropyl Alcohol 1 07/07/23 00:07 V35062ENM
2.08 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 07/07/23 00:07 V35062ENM
<0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 07/07/23 00:07 V35062ENM
<0.121 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 07/07/23 00:07 V35062ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 54 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:IAS-BKG
99281 Matrix:
6/21/2023 8:25
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V35057 07/06/23 09:00
<0.488 µg/m3 0.488 1.74Methylene Chloride 1 07/07/23 00:07 V35062ENM
<0.183 µg/m3 0.183 2.62Naphthalene 1 07/07/23 00:07 V35062ENM
<0.124 µg/m3 0.124 2.13Styrene 1 07/07/23 00:07 V35062ENM
<0.181 µg/m3 0.181 3.39Tetrachloroethene 1 07/07/23 00:07 V35062ENM
<0.107 µg/m3 0.107 1.47Tetrahydrofuran 1 07/07/23 00:07 V35062ENM
1.02 JB µg/m3 0.090 1.88Toluene 1 07/07/23 00:07 V35523ENM
<0.199 µg/m3 0.199 2.15Trichloroethene 1 07/07/23 00:07 V35062ENM
1.52 J µg/m3 0.130 2.81Trichlorofluoromethane 1 07/07/23 00:07 V35062ENM
<0.110 µg/m3 0.110 2.46
1,2,4-Trimethylbenzene 1 07/07/23 00:07 V35062ENM
<0.236 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 07/07/23 00:07 V35062ENM
<0.157 µg/m3 0.157 2.17o-Xylene 1 07/07/23 00:07 V35062ENM
<0.217 µg/m3 0.217 5.65m,p-Xylene 1 07/07/23 00:07 V35062ENM
<0.157 µg/m3 0.157 2.17Xylene (Total)1 07/07/23 00:07 V35062
Surrogate: 4-Bromofluorobenzene 97.5 Limits: 70-130%07/07/23 00:071 ENM V35062
Surrogate: 4-Bromofluorobenzene 97.5 Limits: 70-130%07/07/23 00:071 ENM V35523
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 55 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:IAS-2
99282 Matrix:
6/21/2023 8:25
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V35057 07/06/23 09:00
39.2 µg/m3 0.202 4.75Acetone 1 07/07/23 00:54 V35062ENM
0.559 JB µg/m3 0.073 1.60Benzene 1 07/07/23 00:54 V35062ENM
<0.150 µg/m3 0.150 3.35Bromodichloromethane 1 07/07/23 00:54 V35062ENM
<0.060 µg/m3 0.060 6.23Carbon Disulfide 1 07/07/23 00:54 V35062ENM
0.854 J µg/m3 0.086 2.44Chloroform 1 07/07/23 00:54 V35062ENM
0.976 J µg/m3 0.067 1.03Chloromethane 1 07/07/23 00:54 V35062ENM
<0.161 µg/m3 0.161 3.44Cyclohexane 1 07/07/23 00:54 V35062ENM
<0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 07/07/23 00:54 V35062ENM
18.1 µg/m3 0.134 2.47
Dichlorodifluoromethane 1 07/07/23 00:54 V35062ENM
<0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 07/07/23 00:54 V35062ENM
<0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 07/07/23 00:54 V35523ENM
<0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 07/07/23 00:54 V35062ENM
0.428 J µg/m3 0.136 1.80Ethyl Acetate 1 07/07/23 00:54 V35062ENM
0.369 J µg/m3 0.106 2.17Ethylbenzene 1 07/07/23 00:54 V35062ENM
<0.128 µg/m3 0.128 2.464-Ethyltoluene 1 07/07/23 00:54 V35062ENM
0.762 J
µg/m3 0.143 2.05
Heptane 1 07/07/23 00:54 V35062ENM
0.764 J µg/m3 0.047 1.76n-Hexane 1 07/07/23 00:54 V35062ENM
0.389 J µg/m3 0.285 2.052-Hexanone 1 07/07/23 00:54 V35062ENM
6.94 µg/m3 0.139 4.92Isopropyl Alcohol 1 07/07/23 00:54 V35062ENM
3.81 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 07/07/23 00:54 V35062ENM
<0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 07/07/23 00:54 V35062ENM
<0.121 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 07/07/23 00:54 V35062ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 56 of 100
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-177-0008
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 06/26/2023
LEN-008
Revised Report Date: 07/20/2023
Original Report Date : 07/19/2023
Sample ID :
Lab No :
Sampled:IAS-2
99282 Matrix:
6/21/2023 8:25
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V35057 07/06/23 09:00
0.562 J µg/m3 0.488 1.74Methylene Chloride 1 07/07/23 00:54 V35062ENM
<0.183 µg/m3 0.183 2.62Naphthalene 1 07/07/23 00:54 V35062ENM
0.672 J µg/m3 0.124 2.13Styrene 1 07/07/23 00:54 V35062ENM
<0.181 µg/m3 0.181 3.39Tetrachloroethene 1 07/07/23 00:54 V35062ENM
0.693 J µg/m3 0.107 1.47Tetrahydrofuran 1 07/07/23 00:54 V35062ENM
4.17 B µg/m3 0.090 1.88Toluene 1 07/07/23 00:54 V35523ENM
<0.199 µg/m3 0.199 2.15Trichloroethene 1 07/07/23 00:54 V35062ENM
35.4 µg/m3 0.130 2.81Trichlorofluoromethane 1 07/07/23 00:54 V35062ENM
2.40 J
µg/m3 0.110 2.46
1,2,4-Trimethylbenzene 1 07/07/23 00:54 V35062ENM
<0.236 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 07/07/23 00:54 V35062ENM
0.377 J µg/m3 0.157 2.17o-Xylene 1 07/07/23 00:54 V35062ENM
1.92 J µg/m3 0.217 5.65m,p-Xylene 1 07/07/23 00:54 V35062ENM
2.30 J µg/m3 0.157 2.17Xylene (Total)1 07/07/23 00:54 V35062
Surrogate: 4-Bromofluorobenzene 97.5 Limits: 70-130%07/07/23 00:541 ENM V35062
Surrogate: 4-Bromofluorobenzene 97.5 Limits: 70-130%07/07/23 00:541 ENM V35523
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 57 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34774QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34773
Associated Lab Samples: 99269
LRB-V34773 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/27/23 11:101.600.073<0.073µg/m3Benzene
06/27/23 11:1010.40.147<0.147µg/m3Benzyl Chloride
06/27/23 11:103.350.150<0.150µg/m3Bromodichloromethane
06/27/23 11:105.170.153<0.153µg/m3Bromoform
06/27/23 11:101.940.115<0.115µg/m3Bromomethane
06/27/23 11:101.110.328<0.328µg/m31,3-Butadiene
06/27/23 11:106.230.060<0.060µg/m3Carbon Disulfide
06/27/23 11:103.150.155<0.155µg/m3Carbon Tetrachloride
06/27/23 11:102.300.107<0.107µg/m3Chlorobenzene
06/27/23 11:104.260.208<0.208µg/m3Chlorodibromomethane
06/27/23 11:101.320.164<0.164µg/m3Chloroethane
06/27/23 11:102.440.086<0.086µg/m3Chloroform
06/27/23 11:101.030.067<0.067µg/m3Chloromethane
06/27/23 11:103.440.161<0.161µg/m3Cyclohexane
06/27/23 11:103.840.151<0.151µg/m31,2-Dibromoethane
06/27/23 11:103.010.096<0.096µg/m31,2-Dichlorobenzene
06/27/23 11:1012.00.174<0.174µg/m31,3-Dichlorobenzene
06/27/23 11:103.010.186<0.186µg/m31,4-Dichlorobenzene
06/27/23 11:102.470.134<0.134µg/m3Dichlorodifluoromethane
06/27/23 11:102.020.101<0.101µg/m31,1-Dichloroethane
06/27/23 11:102.020.129<0.129µg/m31,2-Dichloroethane
06/27/23 11:101.980.107<0.107µg/m31,1-Dichloroethene
06/27/23 11:101.980.095<0.095µg/m3cis-1,2-Dichloroethene
06/27/23 11:101.980.108<0.108µg/m3trans-1,2-Dichloroethene
06/27/23 11:102.310.205<0.205µg/m31,2-Dichloropropane
06/27/23 11:103.500.622<0.622µg/m31,2-Dichlorotetrafluoroethane
06/27/23 11:102.270.178<0.178µg/m3cis-1,3-Dichloropropene
Page 1 of 36Date:07/20/2023 10:03 AM
Page 58 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34774QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34773
Associated Lab Samples: 99269
LRB-V34773 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/27/23 11:102.270.178<0.178µg/m3trans-1,3-Dichloropropene
06/27/23 11:101.800.435<0.435µg/m31,4-Dioxane
06/27/23 11:101.800.136<0.136µg/m3Ethyl Acetate
06/27/23 11:102.170.106<0.106µg/m3Ethylbenzene
06/27/23 11:102.460.128<0.128µg/m34-Ethyltoluene
06/27/23 11:103.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane
06/27/23 11:102.050.143<0.143µg/m3Heptane
06/27/23 11:105.330.330<0.330µg/m3Hexachlorobutadiene
06/27/23 11:101.760.047<0.047µg/m3n-Hexane
06/27/23 11:102.050.285<0.285µg/m32-Hexanone
06/27/23 11:104.920.139<0.139µg/m3Isopropyl Alcohol
06/27/23 11:101.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK)
06/27/23 11:101.800.033<0.033µg/m3Methyl tert-butyl ether (MTBE)
06/27/23 11:102.050.121<0.121µg/m34-Methyl-2-Pentanone
06/27/23 11:101.740.488<0.488µg/m3Methylene Chloride
06/27/23 11:102.620.183<0.183µg/m3Naphthalene
06/27/23 11:100.8600.242<0.242µg/m3Propene
06/27/23 11:102.130.124<0.124µg/m3Styrene
06/27/23 11:103.430.104<0.104µg/m31,1,2,2-Tetrachloroethane
06/27/23 11:103.390.181<0.181µg/m3Tetrachloroethene
06/27/23 11:101.880.0900.335µg/m3Toluene
06/27/23 11:103.710.209<0.209µg/m31,2,4-Trichlorobenzene
06/27/23 11:102.730.144<0.144µg/m31,1,1-Trichloroethane
06/27/23 11:102.730.087<0.087µg/m31,1,2-Trichloroethane
06/27/23 11:102.150.199<0.199µg/m3Trichloroethene
06/27/23 11:102.810.130<0.130µg/m3Trichlorofluoromethane
06/27/23 11:102.460.110<0.110µg/m31,2,4-Trimethylbenzene
Page 2 of 36Date:07/20/2023 10:03 AM
Page 59 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34774QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34773
Associated Lab Samples: 99269
LRB-V34773 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/27/23 11:102.460.236<0.236µg/m31,3,5-Trimethylbenzene
06/27/23 11:101.760.224<0.224µg/m3Vinyl Acetate
06/27/23 11:101.280.127<0.127µg/m3Vinyl Chloride
06/27/23 11:102.170.157<0.157µg/m3o-Xylene
06/27/23 11:105.650.217<0.217µg/m3m,p-Xylene
06/27/23 11:104-Bromofluorobenzene (S)93.2 70-130
LCS-V34773Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
97.515.616.0µg/m3Benzene 70-130
10727.825.9µg/m3Benzyl Chloride 70-130
97.932.833.5µg/m3Bromodichloromethane 70-130
97.450.451.7µg/m3Bromoform 70-130
10520.419.4µg/m3Bromomethane 70-130
97.210.811.1µg/m31,3-Butadiene 70-130
10316.015.6µg/m3Carbon Disulfide 70-130
97.730.831.5µg/m3Carbon Tetrachloride 70-130
10123.223.0µg/m3Chlorobenzene 70-130
98.842.142.6µg/m3Chlorodibromomethane 70-130
10113.313.2µg/m3Chloroethane 70-130
98.724.124.4µg/m3Chloroform 70-130
10010.310.3µg/m3Chloromethane 70-130
10017.217.2µg/m3Cyclohexane 70-130
10038.438.4µg/m31,2-Dibromoethane 70-130
10932.830.1µg/m31,2-Dichlorobenzene 70-130
10531.730.1µg/m31,3-Dichlorobenzene 70-130
Page 3 of 36Date:07/20/2023 10:03 AM
Page 60 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34774QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34773
LCS-V34773Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10832.430.1µg/m31,4-Dichlorobenzene 70-130
10325.524.7µg/m3Dichlorodifluoromethane 70-130
10020.320.2µg/m31,1-Dichloroethane 70-130
98.519.920.2µg/m31,2-Dichloroethane 70-130
10520.719.8µg/m31,1-Dichloroethene 70-130
10120.019.8µg/m3cis-1,2-Dichloroethene 70-130
10320.419.8µg/m3trans-1,2-Dichloroethene 70-130
96.122.223.1µg/m31,2-Dichloropropane 70-130
10235.635.0µg/m31,2-Dichlorotetrafluoroethane 70-130
97.722.222.7µg/m3cis-1,3-Dichloropropene 70-130
97.722.222.7µg/m3trans-1,3-Dichloropropene 70-130
96.617.418.0µg/m31,4-Dioxane 70-130
98.317.718.0µg/m3Ethyl Acetate 70-130
99.521.621.7µg/m3Ethylbenzene 70-130
10225.124.6µg/m34-Ethyltoluene 70-130
10138.738.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130
97.019.920.5µg/m3Heptane 70-130
98.152.353.3µg/m3Hexachlorobutadiene 70-130
10117.717.6µg/m3n-Hexane 70-130
97.520.020.5µg/m32-Hexanone 70-130
10212.512.3µg/m3Isopropyl Alcohol 70-130
99.314.714.8µg/m3Methyl Ethyl Ketone (MEK)70-130
10118.118.0µg/m3Methyl tert-butyl ether (MTBE)70-130
97.019.920.5µg/m34-Methyl-2-Pentanone 70-130
10217.817.4µg/m3Methylene Chloride 70-130
10126.426.2µg/m3Naphthalene 70-130
97.98.438.61µg/m3Propene 70-130
Page 4 of 36Date:07/20/2023 10:03 AM
Page 61 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34774QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34773
LCS-V34773Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
98.521.021.3µg/m3Styrene 70-130
99.734.234.3µg/m31,1,2,2-Tetrachloroethane 70-130
96.132.633.9µg/m3Tetrachloroethene 70-130
96.218.118.8µg/m3Toluene 70-130
10137.337.1µg/m31,2,4-Trichlorobenzene 70-130
98.927.027.3µg/m31,1,1-Trichloroethane 70-130
10127.727.3µg/m31,1,2-Trichloroethane 70-130
98.826.626.9µg/m3Trichloroethene 70-130
10529.428.1µg/m3Trichlorofluoromethane 70-130
10726.224.6µg/m31,2,4-Trimethylbenzene 70-130
10325.324.6µg/m31,3,5-Trimethylbenzene 70-130
10117.717.6µg/m3Vinyl Acetate 70-130
10112.912.8µg/m3Vinyl Chloride 70-130
98.621.421.7µg/m3o-Xylene 70-130
92.340.143.4µg/m3m,p-Xylene 70-130
97.74-Bromofluorobenzene (S)70-130
Page 5 of 36Date:07/20/2023 10:03 AM
Page 62 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34795QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34794
Associated Lab Samples: 99267, 99268, 99269, 99270, 99271, 99272, 99273
LRB-V34794 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/28/23 11:294.750.202<0.202µg/m3Acetone
06/28/23 11:291.600.073<0.073µg/m3Benzene
06/28/23 11:2910.40.147<0.147µg/m3Benzyl Chloride
06/28/23 11:293.350.150<0.150µg/m3Bromodichloromethane
06/28/23 11:295.170.153<0.153µg/m3Bromoform
06/28/23 11:291.940.115<0.115µg/m3Bromomethane
06/28/23 11:291.110.328<0.328µg/m31,3-Butadiene
06/28/23 11:296.230.060<0.060µg/m3Carbon Disulfide
06/28/23 11:293.150.155<0.155µg/m3Carbon Tetrachloride
06/28/23 11:292.300.107<0.107µg/m3Chlorobenzene
06/28/23 11:294.260.208<0.208µg/m3Chlorodibromomethane
06/28/23 11:291.320.164<0.164µg/m3Chloroethane
06/28/23 11:292.440.086<0.086µg/m3Chloroform
06/28/23 11:291.030.067<0.067µg/m3Chloromethane
06/28/23 11:293.440.161<0.161µg/m3Cyclohexane
06/28/23 11:293.840.151<0.151µg/m31,2-Dibromoethane
06/28/23 11:293.010.096<0.096µg/m31,2-Dichlorobenzene
06/28/23 11:2912.00.174<0.174µg/m31,3-Dichlorobenzene
06/28/23 11:293.010.186<0.186µg/m31,4-Dichlorobenzene
06/28/23 11:292.470.134<0.134µg/m3Dichlorodifluoromethane
06/28/23 11:292.020.101<0.101µg/m31,1-Dichloroethane
06/28/23 11:292.020.129<0.129µg/m31,2-Dichloroethane
06/28/23 11:291.980.107<0.107µg/m31,1-Dichloroethene
06/28/23 11:291.980.095<0.095µg/m3cis-1,2-Dichloroethene
06/28/23 11:291.980.108<0.108µg/m3trans-1,2-Dichloroethene
06/28/23 11:292.310.205<0.205µg/m31,2-Dichloropropane
06/28/23 11:293.500.622<0.622µg/m31,2-Dichlorotetrafluoroethane
Page 6 of 36Date:07/20/2023 10:03 AM
Page 63 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34795QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34794
Associated Lab Samples: 99267, 99268, 99269, 99270, 99271, 99272, 99273
LRB-V34794 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/28/23 11:292.270.178<0.178µg/m3cis-1,3-Dichloropropene
06/28/23 11:292.270.178<0.178µg/m3trans-1,3-Dichloropropene
06/28/23 11:291.800.435<0.435µg/m31,4-Dioxane
06/28/23 11:291.800.136<0.136µg/m3Ethyl Acetate
06/28/23 11:292.170.106<0.106µg/m3Ethylbenzene
06/28/23 11:292.460.128<0.128µg/m34-Ethyltoluene
06/28/23 11:293.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane
06/28/23 11:292.050.143<0.143µg/m3Heptane
06/28/23 11:295.330.330<0.330µg/m3Hexachlorobutadiene
06/28/23 11:291.760.047<0.047µg/m3n-Hexane
06/28/23 11:292.050.285<0.285µg/m32-Hexanone
06/28/23 11:294.920.139<0.139µg/m3Isopropyl Alcohol
06/28/23 11:291.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK)
06/28/23 11:291.800.033<0.033µg/m3Methyl tert-butyl ether (MTBE)
06/28/23 11:292.050.121<0.121µg/m34-Methyl-2-Pentanone
06/28/23 11:291.740.488<0.488µg/m3Methylene Chloride
06/28/23 11:292.620.183<0.183µg/m3Naphthalene
06/28/23 11:290.8600.242<0.242µg/m3Propene
06/28/23 11:292.130.124<0.124µg/m3Styrene
06/28/23 11:293.430.104<0.104µg/m31,1,2,2-Tetrachloroethane
06/28/23 11:293.390.181<0.181µg/m3Tetrachloroethene
06/28/23 11:291.470.107<0.107µg/m3Tetrahydrofuran
06/28/23 11:291.880.0900.384µg/m3Toluene
06/28/23 11:293.710.209<0.209µg/m31,2,4-Trichlorobenzene
06/28/23 11:292.730.144<0.144µg/m31,1,1-Trichloroethane
06/28/23 11:292.730.087<0.087µg/m31,1,2-Trichloroethane
06/28/23 11:292.150.199<0.199µg/m3Trichloroethene
Page 7 of 36Date:07/20/2023 10:03 AM
Page 64 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34795QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34794
Associated Lab Samples: 99267, 99268, 99269, 99270, 99271, 99272, 99273
LRB-V34794 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/28/23 11:292.810.130<0.130µg/m3Trichlorofluoromethane
06/28/23 11:292.460.110<0.110µg/m31,2,4-Trimethylbenzene
06/28/23 11:292.460.236<0.236µg/m31,3,5-Trimethylbenzene
06/28/23 11:291.760.224<0.224µg/m3Vinyl Acetate
06/28/23 11:291.280.127<0.127µg/m3Vinyl Chloride
06/28/23 11:292.170.157<0.157µg/m3o-Xylene
06/28/23 11:295.650.217<0.217µg/m3m,p-Xylene
06/28/23 11:294-Bromofluorobenzene (S)96.0 70-130
LCS-V34794Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10212.111.9µg/m3Acetone 70-130
10316.416.0µg/m3Benzene 70-130
11229.025.9µg/m3Benzyl Chloride 70-130
10334.433.5µg/m3Bromodichloromethane 70-130
10353.551.7µg/m3Bromoform 70-130
11021.419.4µg/m3Bromomethane 70-130
10011.111.1µg/m31,3-Butadiene 70-130
10616.515.6µg/m3Carbon Disulfide 70-130
10332.631.5µg/m3Carbon Tetrachloride 70-130
10724.723.0µg/m3Chlorobenzene 70-130
10645.042.6µg/m3Chlorodibromomethane 70-130
10313.613.2µg/m3Chloroethane 70-130
10525.524.4µg/m3Chloroform 70-130
10410.710.3µg/m3Chloromethane 70-130
10417.917.2µg/m3Cyclohexane 70-130
Page 8 of 36Date:07/20/2023 10:03 AM
Page 65 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34795QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34794
LCS-V34794Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10640.838.4µg/m31,2-Dibromoethane 70-130
11835.430.1µg/m31,2-Dichlorobenzene 70-130
11233.830.1µg/m31,3-Dichlorobenzene 70-130
11534.530.1µg/m31,4-Dichlorobenzene 70-130
10626.324.7µg/m3Dichlorodifluoromethane 70-130
10421.120.2µg/m31,1-Dichloroethane 70-130
10320.920.2µg/m31,2-Dichloroethane 70-130
10721.219.8µg/m31,1-Dichloroethene 70-130
10320.419.8µg/m3cis-1,2-Dichloroethene 70-130
10620.919.8µg/m3trans-1,2-Dichloroethene 70-130
10123.423.1µg/m31,2-Dichloropropane 70-130
10536.635.0µg/m31,2-Dichlorotetrafluoroethane 70-130
10223.122.7µg/m3cis-1,3-Dichloropropene 70-130
10223.122.7µg/m3trans-1,3-Dichloropropene 70-130
10218.318.0µg/m31,4-Dioxane 70-130
96.617.418.0µg/m3Ethyl Acetate 70-130
10622.921.7µg/m3Ethylbenzene 70-130
10926.724.6µg/m34-Ethyltoluene 70-130
10740.838.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130
99.020.320.5µg/m3Heptane 70-130
10857.653.3µg/m3Hexachlorobutadiene 70-130
10318.217.6µg/m3n-Hexane 70-130
10321.120.5µg/m32-Hexanone 70-130
99.112.212.3µg/m3Isopropyl Alcohol 70-130
98.614.614.8µg/m3Methyl Ethyl Ketone (MEK)70-130
10318.518.0µg/m3Methyl tert-butyl ether (MTBE)70-130
10020.520.5µg/m34-Methyl-2-Pentanone 70-130
Page 9 of 36Date:07/20/2023 10:03 AM
Page 66 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34795QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34794
LCS-V34794Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10718.617.4µg/m3Methylene Chloride 70-130
10728.126.2µg/m3Naphthalene 70-130
97.08.368.61µg/m3Propene 70-130
10622.521.3µg/m3Styrene 70-130
10736.834.3µg/m31,1,2,2-Tetrachloroethane 70-130
10234.733.9µg/m3Tetrachloroethene 70-130
98.614.514.7µg/m3Tetrahydrofuran 70-130
10118.918.8µg/m3Toluene 70-130
10840.237.1µg/m31,2,4-Trichlorobenzene 70-130
10328.227.3µg/m31,1,1-Trichloroethane 70-130
10729.327.3µg/m31,1,2-Trichloroethane 70-130
10327.826.9µg/m3Trichloroethene 70-130
10930.728.1µg/m3Trichlorofluoromethane 70-130
11327.824.6µg/m31,2,4-Trimethylbenzene 70-130
11127.224.6µg/m31,3,5-Trimethylbenzene 70-130
10318.217.6µg/m3Vinyl Acetate 70-130
10413.312.8µg/m3Vinyl Chloride 70-130
10622.921.7µg/m3o-Xylene 70-130
98.642.843.4µg/m3m,p-Xylene 70-130
1004-Bromofluorobenzene (S)70-130
Page 10 of 36Date:07/20/2023 10:03 AM
Page 67 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34837QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34836
Associated Lab Samples: 99274, 99275
LRB-V34836 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/29/23 11:054.750.202<0.202µg/m3Acetone
06/29/23 11:051.600.073<0.073µg/m3Benzene
06/29/23 11:0510.40.147<0.147µg/m3Benzyl Chloride
06/29/23 11:053.350.150<0.150µg/m3Bromodichloromethane
06/29/23 11:055.170.153<0.153µg/m3Bromoform
06/29/23 11:051.940.115<0.115µg/m3Bromomethane
06/29/23 11:051.110.328<0.328µg/m31,3-Butadiene
06/29/23 11:056.230.060<0.060µg/m3Carbon Disulfide
06/29/23 11:053.150.155<0.155µg/m3Carbon Tetrachloride
06/29/23 11:052.300.107<0.107µg/m3Chlorobenzene
06/29/23 11:054.260.208<0.208µg/m3Chlorodibromomethane
06/29/23 11:051.320.164<0.164µg/m3Chloroethane
06/29/23 11:052.440.086<0.086µg/m3Chloroform
06/29/23 11:051.030.067<0.067µg/m3Chloromethane
06/29/23 11:053.440.161<0.161µg/m3Cyclohexane
06/29/23 11:053.840.151<0.151µg/m31,2-Dibromoethane
06/29/23 11:053.010.096<0.096µg/m31,2-Dichlorobenzene
06/29/23 11:0512.00.174<0.174µg/m31,3-Dichlorobenzene
06/29/23 11:053.010.186<0.186µg/m31,4-Dichlorobenzene
06/29/23 11:052.470.134<0.134µg/m3Dichlorodifluoromethane
06/29/23 11:052.020.101<0.101µg/m31,1-Dichloroethane
06/29/23 11:052.020.129<0.129µg/m31,2-Dichloroethane
06/29/23 11:051.980.107<0.107µg/m31,1-Dichloroethene
06/29/23 11:051.980.095<0.095µg/m3cis-1,2-Dichloroethene
06/29/23 11:051.980.108<0.108µg/m3trans-1,2-Dichloroethene
06/29/23 11:052.310.205<0.205µg/m31,2-Dichloropropane
06/29/23 11:053.500.622<0.622µg/m31,2-Dichlorotetrafluoroethane
Page 11 of 36Date:07/20/2023 10:03 AM
Page 68 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34837QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34836
Associated Lab Samples: 99274, 99275
LRB-V34836 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/29/23 11:052.270.178<0.178µg/m3cis-1,3-Dichloropropene
06/29/23 11:052.270.178<0.178µg/m3trans-1,3-Dichloropropene
06/29/23 11:051.800.435<0.435µg/m31,4-Dioxane
06/29/23 11:051.800.136<0.136µg/m3Ethyl Acetate
06/29/23 11:052.170.106<0.106µg/m3Ethylbenzene
06/29/23 11:052.460.128<0.128µg/m34-Ethyltoluene
06/29/23 11:053.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane
06/29/23 11:052.050.143<0.143µg/m3Heptane
06/29/23 11:055.330.330<0.330µg/m3Hexachlorobutadiene
06/29/23 11:051.760.047<0.047µg/m3n-Hexane
06/29/23 11:052.050.285<0.285µg/m32-Hexanone
06/29/23 11:054.920.139<0.139µg/m3Isopropyl Alcohol
06/29/23 11:051.800.033<0.033µg/m3Methyl tert-butyl ether (MTBE)
06/29/23 11:052.050.121<0.121µg/m34-Methyl-2-Pentanone
06/29/23 11:051.740.488<0.488µg/m3Methylene Chloride
06/29/23 11:052.620.183<0.183µg/m3Naphthalene
06/29/23 11:050.8600.242<0.242µg/m3Propene
06/29/23 11:052.130.124<0.124µg/m3Styrene
06/29/23 11:053.430.104<0.104µg/m31,1,2,2-Tetrachloroethane
06/29/23 11:053.390.181<0.181µg/m3Tetrachloroethene
06/29/23 11:051.880.090<0.090µg/m3Toluene
06/29/23 11:053.710.209<0.209µg/m31,2,4-Trichlorobenzene
06/29/23 11:052.730.144<0.144µg/m31,1,1-Trichloroethane
06/29/23 11:052.730.087<0.087µg/m31,1,2-Trichloroethane
06/29/23 11:052.150.199<0.199µg/m3Trichloroethene
06/29/23 11:052.810.130<0.130µg/m3Trichlorofluoromethane
06/29/23 11:052.460.110<0.110µg/m31,2,4-Trimethylbenzene
Page 12 of 36Date:07/20/2023 10:03 AM
Page 69 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34837QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34836
Associated Lab Samples: 99274, 99275
LRB-V34836 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/29/23 11:052.460.236<0.236µg/m31,3,5-Trimethylbenzene
06/29/23 11:051.760.224<0.224µg/m3Vinyl Acetate
06/29/23 11:051.280.127<0.127µg/m3Vinyl Chloride
06/29/23 11:052.170.157<0.157µg/m3o-Xylene
06/29/23 11:055.650.217<0.217µg/m3m,p-Xylene
06/29/23 11:054-Bromofluorobenzene (S)98.0 70-130
LCS-V34836Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10812.911.9µg/m3Acetone 70-130
10116.216.0µg/m3Benzene 70-130
11529.925.9µg/m3Benzyl Chloride 70-130
10133.933.5µg/m3Bromodichloromethane 70-130
10252.751.7µg/m3Bromoform 70-130
11321.919.4µg/m3Bromomethane 70-130
10611.811.1µg/m31,3-Butadiene 70-130
10816.815.6µg/m3Carbon Disulfide 70-130
10232.031.5µg/m3Carbon Tetrachloride 70-130
10724.523.0µg/m3Chlorobenzene 70-130
10544.642.6µg/m3Chlorodibromomethane 70-130
10814.313.2µg/m3Chloroethane 70-130
10525.524.4µg/m3Chloroform 70-130
10711.010.3µg/m3Chloromethane 70-130
10618.217.2µg/m3Cyclohexane 70-130
10741.238.4µg/m31,2-Dibromoethane 70-130
11434.330.1µg/m31,2-Dichlorobenzene 70-130
Page 13 of 36Date:07/20/2023 10:03 AM
Page 70 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34837QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34836
LCS-V34836Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
11133.530.1µg/m31,3-Dichlorobenzene 70-130
11534.630.1µg/m31,4-Dichlorobenzene 70-130
10926.924.7µg/m3Dichlorodifluoromethane 70-130
10821.820.2µg/m31,1-Dichloroethane 70-130
10421.020.2µg/m31,2-Dichloroethane 70-130
11021.819.8µg/m31,1-Dichloroethene 70-130
10921.519.8µg/m3cis-1,2-Dichloroethene 70-130
11121.919.8µg/m3trans-1,2-Dichloroethene 70-130
10323.723.1µg/m31,2-Dichloropropane 70-130
10737.535.0µg/m31,2-Dichlorotetrafluoroethane 70-130
10223.222.7µg/m3cis-1,3-Dichloropropene 70-130
10223.222.7µg/m3trans-1,3-Dichloropropene 70-130
10418.818.0µg/m31,4-Dioxane 70-130
10719.218.0µg/m3Ethyl Acetate 70-130
10723.221.7µg/m3Ethylbenzene 70-130
11027.024.6µg/m34-Ethyltoluene 70-130
10841.538.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130
10220.920.5µg/m3Heptane 70-130
10556.253.3µg/m3Hexachlorobutadiene 70-130
11019.317.6µg/m3n-Hexane 70-130
10722.020.5µg/m32-Hexanone 70-130
11113.612.3µg/m3Isopropyl Alcohol 70-130
10719.318.0µg/m3Methyl tert-butyl ether (MTBE)70-130
10421.320.5µg/m34-Methyl-2-Pentanone 70-130
11219.517.4µg/m3Methylene Chloride 70-130
10728.026.2µg/m3Naphthalene 70-130
1069.098.61µg/m3Propene 70-130
Page 14 of 36Date:07/20/2023 10:03 AM
Page 71 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34837QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34836
LCS-V34836Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10722.721.3µg/m3Styrene 70-130
10636.334.3µg/m31,1,2,2-Tetrachloroethane 70-130
10134.233.9µg/m3Tetrachloroethene 70-130
10119.018.8µg/m3Toluene 70-130
10739.637.1µg/m31,2,4-Trichlorobenzene 70-130
10328.227.3µg/m31,1,1-Trichloroethane 70-130
10829.527.3µg/m31,1,2-Trichloroethane 70-130
10227.526.9µg/m3Trichloroethene 70-130
11131.128.1µg/m3Trichlorofluoromethane 70-130
11428.024.6µg/m31,2,4-Trimethylbenzene 70-130
11027.124.6µg/m31,3,5-Trimethylbenzene 70-130
10718.917.6µg/m3Vinyl Acetate 70-130
10813.812.8µg/m3Vinyl Chloride 70-130
10522.821.7µg/m3o-Xylene 70-130
98.842.943.4µg/m3m,p-Xylene 70-130
1004-Bromofluorobenzene (S)70-130
Page 15 of 36Date:07/20/2023 10:03 AM
Page 72 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34842QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34838
Associated Lab Samples: 99276
LRB-V34838 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/28/23 11:294.750.202<0.202µg/m3Acetone
06/28/23 11:291.600.073<0.073µg/m3Benzene
06/28/23 11:2910.40.147<0.147µg/m3Benzyl Chloride
06/28/23 11:293.350.150<0.150µg/m3Bromodichloromethane
06/28/23 11:295.170.153<0.153µg/m3Bromoform
06/28/23 11:291.940.115<0.115µg/m3Bromomethane
06/28/23 11:291.110.328<0.328µg/m31,3-Butadiene
06/28/23 11:296.230.060<0.060µg/m3Carbon Disulfide
06/28/23 11:293.150.155<0.155µg/m3Carbon Tetrachloride
06/28/23 11:292.300.107<0.107µg/m3Chlorobenzene
06/28/23 11:294.260.208<0.208µg/m3Chlorodibromomethane
06/28/23 11:291.320.164<0.164µg/m3Chloroethane
06/28/23 11:292.440.086<0.086µg/m3Chloroform
06/28/23 11:291.030.067<0.067µg/m3Chloromethane
06/28/23 11:293.440.161<0.161µg/m3Cyclohexane
06/28/23 11:293.840.151<0.151µg/m31,2-Dibromoethane
06/28/23 11:293.010.096<0.096µg/m31,2-Dichlorobenzene
06/28/23 11:2912.00.174<0.174µg/m31,3-Dichlorobenzene
06/28/23 11:293.010.186<0.186µg/m31,4-Dichlorobenzene
06/28/23 11:292.470.134<0.134µg/m3Dichlorodifluoromethane
06/28/23 11:292.020.101<0.101µg/m31,1-Dichloroethane
06/28/23 11:292.020.129<0.129µg/m31,2-Dichloroethane
06/28/23 11:291.980.107<0.107µg/m31,1-Dichloroethene
06/28/23 11:291.980.095<0.095µg/m3cis-1,2-Dichloroethene
06/28/23 11:291.980.108<0.108µg/m3trans-1,2-Dichloroethene
06/28/23 11:292.310.205<0.205µg/m31,2-Dichloropropane
06/28/23 11:293.500.622<0.622µg/m31,2-Dichlorotetrafluoroethane
Page 16 of 36Date:07/20/2023 10:03 AM
Page 73 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34842QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34838
Associated Lab Samples: 99276
LRB-V34838 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/28/23 11:292.270.178<0.178µg/m3cis-1,3-Dichloropropene
06/28/23 11:292.270.178<0.178µg/m3trans-1,3-Dichloropropene
06/28/23 11:291.800.435<0.435µg/m31,4-Dioxane
06/28/23 11:291.800.136<0.136µg/m3Ethyl Acetate
06/28/23 11:292.170.106<0.106µg/m3Ethylbenzene
06/28/23 11:292.460.128<0.128µg/m34-Ethyltoluene
06/28/23 11:293.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane
06/28/23 11:292.050.143<0.143µg/m3Heptane
06/28/23 11:295.330.330<0.330µg/m3Hexachlorobutadiene
06/28/23 11:291.760.047<0.047µg/m3n-Hexane
06/28/23 11:292.050.285<0.285µg/m32-Hexanone
06/28/23 11:294.920.139<0.139µg/m3Isopropyl Alcohol
06/28/23 11:291.800.033<0.033µg/m3Methyl tert-butyl ether (MTBE)
06/28/23 11:292.050.121<0.121µg/m34-Methyl-2-Pentanone
06/28/23 11:291.740.488<0.488µg/m3Methylene Chloride
06/28/23 11:292.620.183<0.183µg/m3Naphthalene
06/28/23 11:290.8600.242<0.242µg/m3Propene
06/28/23 11:292.130.124<0.124µg/m3Styrene
06/28/23 11:293.430.104<0.104µg/m31,1,2,2-Tetrachloroethane
06/28/23 11:293.390.181<0.181µg/m3Tetrachloroethene
06/28/23 11:291.880.0900.384µg/m3Toluene
06/28/23 11:293.710.209<0.209µg/m31,2,4-Trichlorobenzene
06/28/23 11:292.730.144<0.144µg/m31,1,1-Trichloroethane
06/28/23 11:292.730.087<0.087µg/m31,1,2-Trichloroethane
06/28/23 11:292.150.199<0.199µg/m3Trichloroethene
06/28/23 11:292.810.130<0.130µg/m3Trichlorofluoromethane
06/28/23 11:292.460.110<0.110µg/m31,2,4-Trimethylbenzene
Page 17 of 36Date:07/20/2023 10:03 AM
Page 74 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34842QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34838
Associated Lab Samples: 99276
LRB-V34838 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/28/23 11:292.460.236<0.236µg/m31,3,5-Trimethylbenzene
06/28/23 11:291.760.224<0.224µg/m3Vinyl Acetate
06/28/23 11:291.280.127<0.127µg/m3Vinyl Chloride
06/28/23 11:292.170.157<0.157µg/m3o-Xylene
06/28/23 11:295.650.217<0.217µg/m3m,p-Xylene
06/28/23 11:294-Bromofluorobenzene (S)96.0 70-130
LCS-V34838Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10212.111.9µg/m3Acetone 70-130
10316.416.0µg/m3Benzene 70-130
11229.025.9µg/m3Benzyl Chloride 70-130
10334.433.5µg/m3Bromodichloromethane 70-130
10353.551.7µg/m3Bromoform 70-130
11021.419.4µg/m3Bromomethane 70-130
10011.111.1µg/m31,3-Butadiene 70-130
10616.515.6µg/m3Carbon Disulfide 70-130
10332.631.5µg/m3Carbon Tetrachloride 70-130
10724.723.0µg/m3Chlorobenzene 70-130
10645.042.6µg/m3Chlorodibromomethane 70-130
10313.613.2µg/m3Chloroethane 70-130
10525.524.4µg/m3Chloroform 70-130
10410.710.3µg/m3Chloromethane 70-130
10417.917.2µg/m3Cyclohexane 70-130
10640.838.4µg/m31,2-Dibromoethane 70-130
11835.430.1µg/m31,2-Dichlorobenzene 70-130
Page 18 of 36Date:07/20/2023 10:03 AM
Page 75 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34842QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34838
LCS-V34838Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
11233.830.1µg/m31,3-Dichlorobenzene 70-130
11534.530.1µg/m31,4-Dichlorobenzene 70-130
10626.324.7µg/m3Dichlorodifluoromethane 70-130
10421.120.2µg/m31,1-Dichloroethane 70-130
10320.920.2µg/m31,2-Dichloroethane 70-130
10721.219.8µg/m31,1-Dichloroethene 70-130
10320.419.8µg/m3cis-1,2-Dichloroethene 70-130
10620.919.8µg/m3trans-1,2-Dichloroethene 70-130
10123.423.1µg/m31,2-Dichloropropane 70-130
10536.635.0µg/m31,2-Dichlorotetrafluoroethane 70-130
10223.122.7µg/m3cis-1,3-Dichloropropene 70-130
10223.122.7µg/m3trans-1,3-Dichloropropene 70-130
10218.318.0µg/m31,4-Dioxane 70-130
96.617.418.0µg/m3Ethyl Acetate 70-130
10622.921.7µg/m3Ethylbenzene 70-130
10926.724.6µg/m34-Ethyltoluene 70-130
10740.838.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130
99.020.320.5µg/m3Heptane 70-130
10857.653.3µg/m3Hexachlorobutadiene 70-130
10318.217.6µg/m3n-Hexane 70-130
10321.120.5µg/m32-Hexanone 70-130
99.112.212.3µg/m3Isopropyl Alcohol 70-130
10318.518.0µg/m3Methyl tert-butyl ether (MTBE)70-130
10020.520.5µg/m34-Methyl-2-Pentanone 70-130
10718.617.4µg/m3Methylene Chloride 70-130
10728.126.2µg/m3Naphthalene 70-130
97.08.368.61µg/m3Propene 70-130
Page 19 of 36Date:07/20/2023 10:03 AM
Page 76 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34842QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34838
LCS-V34838Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10622.521.3µg/m3Styrene 70-130
10736.834.3µg/m31,1,2,2-Tetrachloroethane 70-130
10234.733.9µg/m3Tetrachloroethene 70-130
10118.918.8µg/m3Toluene 70-130
10840.237.1µg/m31,2,4-Trichlorobenzene 70-130
10328.227.3µg/m31,1,1-Trichloroethane 70-130
10729.327.3µg/m31,1,2-Trichloroethane 70-130
10327.826.9µg/m3Trichloroethene 70-130
10930.728.1µg/m3Trichlorofluoromethane 70-130
11327.824.6µg/m31,2,4-Trimethylbenzene 70-130
11127.224.6µg/m31,3,5-Trimethylbenzene 70-130
10318.217.6µg/m3Vinyl Acetate 70-130
10413.312.8µg/m3Vinyl Chloride 70-130
10622.921.7µg/m3o-Xylene 70-130
98.642.843.4µg/m3m,p-Xylene 70-130
1004-Bromofluorobenzene (S)70-130
Page 20 of 36Date:07/20/2023 10:03 AM
Page 77 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34855QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34850
Associated Lab Samples: 99270, 99271, 99273, 99276
LRB-V34850 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/27/23 11:104.750.202<0.202µg/m3Acetone
06/27/23 11:101.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK)
06/27/23 11:101.470.107<0.107µg/m3Tetrahydrofuran
06/27/23 11:104-Bromofluorobenzene (S)93.2 70-130
LCS-V34850Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10212.111.9µg/m3Acetone 70-130
99.314.714.8µg/m3Methyl Ethyl Ketone (MEK)70-130
97.914.414.7µg/m3Tetrahydrofuran 70-130
97.74-Bromofluorobenzene (S)70-130
Page 21 of 36Date:07/20/2023 10:03 AM
Page 78 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34861QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34860
Associated Lab Samples: 99274, 99275
LRB-V34860 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/28/23 11:294.750.202<0.202µg/m3Acetone
06/28/23 11:291.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK)
06/28/23 11:291.470.107<0.107µg/m3Tetrahydrofuran
06/28/23 11:294-Bromofluorobenzene (S)96.0 70-130
LCS-V34860Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10212.111.9µg/m3Acetone 70-130
98.614.614.8µg/m3Methyl Ethyl Ketone (MEK)70-130
98.614.514.7µg/m3Tetrahydrofuran 70-130
1004-Bromofluorobenzene (S)70-130
Page 22 of 36Date:07/20/2023 10:03 AM
Page 79 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34864QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34863
Associated Lab Samples: 99277
LRB-V34863 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/30/23 10:414.750.202<0.202µg/m3Acetone
06/30/23 10:411.600.073<0.073µg/m3Benzene
06/30/23 10:4110.40.147<0.147µg/m3Benzyl Chloride
06/30/23 10:413.350.150<0.150µg/m3Bromodichloromethane
06/30/23 10:415.170.153<0.153µg/m3Bromoform
06/30/23 10:411.940.115<0.115µg/m3Bromomethane
06/30/23 10:411.110.328<0.328µg/m31,3-Butadiene
06/30/23 10:416.230.060<0.060µg/m3Carbon Disulfide
06/30/23 10:413.150.155<0.155µg/m3Carbon Tetrachloride
06/30/23 10:412.300.107<0.107µg/m3Chlorobenzene
06/30/23 10:414.260.208<0.208µg/m3Chlorodibromomethane
06/30/23 10:411.320.164<0.164µg/m3Chloroethane
06/30/23 10:412.440.086<0.086µg/m3Chloroform
06/30/23 10:411.030.067<0.067µg/m3Chloromethane
06/30/23 10:413.440.161<0.161µg/m3Cyclohexane
06/30/23 10:413.840.151<0.151µg/m31,2-Dibromoethane
06/30/23 10:413.010.096<0.096µg/m31,2-Dichlorobenzene
06/30/23 10:4112.00.174<0.174µg/m31,3-Dichlorobenzene
06/30/23 10:413.010.186<0.186µg/m31,4-Dichlorobenzene
06/30/23 10:412.470.134<0.134µg/m3Dichlorodifluoromethane
06/30/23 10:412.020.101<0.101µg/m31,1-Dichloroethane
06/30/23 10:412.020.129<0.129µg/m31,2-Dichloroethane
06/30/23 10:411.980.107<0.107µg/m31,1-Dichloroethene
06/30/23 10:411.980.095<0.095µg/m3cis-1,2-Dichloroethene
06/30/23 10:411.980.108<0.108µg/m3trans-1,2-Dichloroethene
06/30/23 10:412.310.205<0.205µg/m31,2-Dichloropropane
06/30/23 10:413.500.622<0.622µg/m31,2-Dichlorotetrafluoroethane
Page 23 of 36Date:07/20/2023 10:03 AM
Page 80 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34864QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34863
Associated Lab Samples: 99277
LRB-V34863 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/30/23 10:412.270.178<0.178µg/m3cis-1,3-Dichloropropene
06/30/23 10:412.270.178<0.178µg/m3trans-1,3-Dichloropropene
06/30/23 10:411.800.435<0.435µg/m31,4-Dioxane
06/30/23 10:411.800.136<0.136µg/m3Ethyl Acetate
06/30/23 10:412.170.106<0.106µg/m3Ethylbenzene
06/30/23 10:412.460.128<0.128µg/m34-Ethyltoluene
06/30/23 10:413.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane
06/30/23 10:412.050.143<0.143µg/m3Heptane
06/30/23 10:415.330.330<0.330µg/m3Hexachlorobutadiene
06/30/23 10:411.760.047<0.047µg/m3n-Hexane
06/30/23 10:412.050.285<0.285µg/m32-Hexanone
06/30/23 10:411.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK)
06/30/23 10:411.800.033<0.033µg/m3Methyl tert-butyl ether (MTBE)
06/30/23 10:412.050.121<0.121µg/m34-Methyl-2-Pentanone
06/30/23 10:411.740.488<0.488µg/m3Methylene Chloride
06/30/23 10:412.620.183<0.183µg/m3Naphthalene
06/30/23 10:410.8600.242<0.242µg/m3Propene
06/30/23 10:412.130.124<0.124µg/m3Styrene
06/30/23 10:413.430.104<0.104µg/m31,1,2,2-Tetrachloroethane
06/30/23 10:413.390.1811.40µg/m3Tetrachloroethene
06/30/23 10:411.470.107<0.107µg/m3Tetrahydrofuran
06/30/23 10:411.880.090<0.090µg/m3Toluene
06/30/23 10:413.710.209<0.209µg/m31,2,4-Trichlorobenzene
06/30/23 10:412.730.144<0.144µg/m31,1,1-Trichloroethane
06/30/23 10:412.730.087<0.087µg/m31,1,2-Trichloroethane
06/30/23 10:412.150.199<0.199µg/m3Trichloroethene
06/30/23 10:412.810.130<0.130µg/m3Trichlorofluoromethane
Page 24 of 36Date:07/20/2023 10:03 AM
Page 81 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34864QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34863
Associated Lab Samples: 99277
LRB-V34863 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/30/23 10:412.460.110<0.110µg/m31,2,4-Trimethylbenzene
06/30/23 10:412.460.236<0.236µg/m31,3,5-Trimethylbenzene
06/30/23 10:411.760.224<0.224µg/m3Vinyl Acetate
06/30/23 10:411.280.127<0.127µg/m3Vinyl Chloride
06/30/23 10:412.170.157<0.157µg/m3o-Xylene
06/30/23 10:415.650.217<0.217µg/m3m,p-Xylene
06/30/23 10:414-Bromofluorobenzene (S)91.0 70-130
LCS-V34863Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
11213.311.9µg/m3Acetone 70-130
10917.416.0µg/m3Benzene 70-130
12331.925.9µg/m3Benzyl Chloride 70-130
11137.133.5µg/m3Bromodichloromethane 70-130
12062.151.7µg/m3Bromoform 70-130
12223.719.4µg/m3Bromomethane 70-130
11412.611.1µg/m31,3-Butadiene 70-130
11918.615.6µg/m3Carbon Disulfide 70-130
10834.131.5µg/m3Carbon Tetrachloride 70-130
11927.423.0µg/m3Chlorobenzene 70-130
12051.242.6µg/m3Chlorodibromomethane 70-130
11915.713.2µg/m3Chloroethane 70-130
11227.324.4µg/m3Chloroform 70-130
11712.010.3µg/m3Chloromethane 70-130
11119.117.2µg/m3Cyclohexane 70-130
12046.238.4µg/m31,2-Dibromoethane 70-130
Page 25 of 36Date:07/20/2023 10:03 AM
Page 82 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34864QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34863
LCS-V34863Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
12938.930.1µg/m31,2-Dichlorobenzene 70-130
12738.130.1µg/m31,3-Dichlorobenzene 70-130
13039.130.1µg/m31,4-Dichlorobenzene 70-130
11829.224.7µg/m3Dichlorodifluoromethane 70-130
11623.420.2µg/m31,1-Dichloroethane 70-130
11022.220.2µg/m31,2-Dichloroethane 70-130
11723.219.8µg/m31,1-Dichloroethene 70-130
11522.719.8µg/m3cis-1,2-Dichloroethene 70-130
11623.019.8µg/m3trans-1,2-Dichloroethene 70-130
11025.423.1µg/m31,2-Dichloropropane 70-130
11841.435.0µg/m31,2-Dichlorotetrafluoroethane 70-130
10824.622.7µg/m3cis-1,3-Dichloropropene 70-130
10824.622.7µg/m3trans-1,3-Dichloropropene 70-130
10919.618.0µg/m31,4-Dioxane 70-130
10919.718.0µg/m3Ethyl Acetate 70-130
11825.721.7µg/m3Ethylbenzene 70-130
12029.624.6µg/m34-Ethyltoluene 70-130
11744.938.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130
10421.420.5µg/m3Heptane 70-130
12164.653.3µg/m3Hexachlorobutadiene 70-130
11620.517.6µg/m3n-Hexane 70-130
11623.720.5µg/m32-Hexanone 70-130
11016.314.8µg/m3Methyl Ethyl Ketone (MEK)70-130
11220.218.0µg/m3Methyl tert-butyl ether (MTBE)70-130
10621.820.5µg/m34-Methyl-2-Pentanone 70-130
12020.817.4µg/m3Methylene Chloride 70-130
12031.426.2µg/m3Naphthalene 70-130
Page 26 of 36Date:07/20/2023 10:03 AM
Page 83 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34864QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34863
LCS-V34863Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
1099.358.61µg/m3Propene 70-130
12025.521.3µg/m3Styrene 70-130
134*45.934.3µg/m31,1,2,2-Tetrachloroethane 70-130
10836.633.9µg/m3Tetrachloroethene 70-130
10515.514.7µg/m3Tetrahydrofuran 70-130
10620.018.8µg/m3Toluene 70-130
12044.637.1µg/m31,2,4-Trichlorobenzene 70-130
11029.927.3µg/m31,1,1-Trichloroethane 70-130
12133.027.3µg/m31,1,2-Trichloroethane 70-130
11129.826.9µg/m3Trichloroethene 70-130
12033.628.1µg/m3Trichlorofluoromethane 70-130
12430.624.6µg/m31,2,4-Trimethylbenzene 70-130
12129.824.6µg/m31,3,5-Trimethylbenzene 70-130
11620.517.6µg/m3Vinyl Acetate 70-130
11915.212.8µg/m3Vinyl Chloride 70-130
11625.221.7µg/m3o-Xylene 70-130
11047.643.4µg/m3m,p-Xylene 70-130
1004-Bromofluorobenzene (S)70-130
Page 27 of 36* QC Fail Date:07/20/2023 10:03 AM
Page 84 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V34909QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V34907
Associated Lab Samples: 99277
LRB-V34907 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/29/23 11:054.920.139<0.139µg/m3Isopropyl Alcohol
06/29/23 11:054-Bromofluorobenzene (S)98.0 70-130
LCS-V34907Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
11113.612.3µg/m3Isopropyl Alcohol 70-130
1004-Bromofluorobenzene (S)70-130
Page 28 of 36Date:07/20/2023 10:03 AM
Page 85 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V35062,V35523QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V35057
Associated Lab Samples: 99279, 99280, 99281, 99282
LRB-V35057 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/06/23 11:364.750.2021.47µg/m3Acetone
07/06/23 11:361.600.0730.571µg/m3Benzene
07/06/23 11:363.350.150<0.150µg/m3Bromodichloromethane
07/06/23 11:366.230.0600.520µg/m3Carbon Disulfide
07/06/23 11:362.440.086<0.086µg/m3Chloroform
07/06/23 11:361.030.067<0.067µg/m3Chloromethane
07/06/23 11:363.440.161<0.161µg/m3Cyclohexane
07/06/23 11:363.010.186<0.186µg/m31,4-Dichlorobenzene
07/06/23 11:362.470.134<0.134µg/m3Dichlorodifluoromethane
07/06/23 11:361.980.095<0.095µg/m3cis-1,2-Dichloroethene
07/06/23 11:362.310.205<0.205µg/m31,2-Dichloropropane
07/06/23 11:363.500.622<0.622µg/m31,2-Dichlorotetrafluoroethane
07/06/23 11:361.800.136<0.136µg/m3Ethyl Acetate
07/06/23 11:362.170.106<0.106µg/m3Ethylbenzene
07/06/23 11:362.460.128<0.128µg/m34-Ethyltoluene
07/06/23 11:362.050.143<0.143µg/m3Heptane
07/06/23 11:361.760.047<0.047µg/m3n-Hexane
07/06/23 11:362.050.285<0.285µg/m32-Hexanone
07/06/23 11:364.920.139<0.139µg/m3Isopropyl Alcohol
07/06/23 11:361.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK)
07/06/23 11:361.800.033<0.033µg/m3Methyl tert-butyl ether (MTBE)
07/06/23 11:362.050.121<0.121µg/m34-Methyl-2-Pentanone
07/06/23 11:361.740.488<0.488µg/m3Methylene Chloride
07/06/23 11:362.620.183<0.183µg/m3Naphthalene
07/06/23 11:362.130.124<0.124µg/m3Styrene
07/06/23 11:363.390.181<0.181µg/m3Tetrachloroethene
07/06/23 11:361.470.107<0.107µg/m3Tetrahydrofuran
Page 29 of 36Date:07/20/2023 10:03 AM
Page 86 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V35062,V35523QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V35057
Associated Lab Samples: 99279, 99280, 99281, 99282
LRB-V35057 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/06/23 11:361.880.0900.467µg/m3Toluene
07/06/23 11:362.150.199<0.199µg/m3Trichloroethene
07/06/23 11:362.810.130<0.130µg/m3Trichlorofluoromethane
07/06/23 11:362.460.110<0.110µg/m31,2,4-Trimethylbenzene
07/06/23 11:362.460.236<0.236µg/m31,3,5-Trimethylbenzene
07/06/23 11:362.170.157<0.157µg/m3o-Xylene
07/06/23 11:365.650.217<0.217µg/m3m,p-Xylene
07/06/23 11:364-Bromofluorobenzene (S)94.1 70-130
LCS-V35057Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
11814.111.9µg/m3Acetone 70-130
11418.216.0µg/m3Benzene 70-130
11538.533.5µg/m3Bromodichloromethane 70-130
12419.315.6µg/m3Carbon Disulfide 70-130
11828.924.4µg/m3Chloroform 70-130
11912.310.3µg/m3Chloromethane 70-130
11619.917.2µg/m3Cyclohexane 70-130
12838.430.1µg/m31,4-Dichlorobenzene 70-130
12330.424.7µg/m3Dichlorodifluoromethane 70-130
11923.619.8µg/m3cis-1,2-Dichloroethene 70-130
11326.123.1µg/m31,2-Dichloropropane 70-130
12343.135.0µg/m31,2-Dichlorotetrafluoroethane 70-130
11821.218.0µg/m3Ethyl Acetate 70-130
12126.221.7µg/m3Ethylbenzene 70-130
12430.524.6µg/m34-Ethyltoluene 70-130
Page 30 of 36Date:07/20/2023 10:03 AM
Page 87 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V35062,V35523QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V35057
LCS-V35057Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
11122.720.5µg/m3Heptane 70-130
12121.317.6µg/m3n-Hexane 70-130
11723.920.5µg/m32-Hexanone 70-130
11414.012.3µg/m3Isopropyl Alcohol 70-130
11517.014.8µg/m3Methyl Ethyl Ketone (MEK)70-130
11821.318.0µg/m3Methyl tert-butyl ether (MTBE)70-130
11323.220.5µg/m34-Methyl-2-Pentanone 70-130
12221.317.4µg/m3Methylene Chloride 70-130
12332.226.2µg/m3Naphthalene 70-130
12025.621.3µg/m3Styrene 70-130
11539.033.9µg/m3Tetrachloroethene 70-130
11016.114.7µg/m3Tetrahydrofuran 70-130
11221.118.8µg/m3Toluene 70-130
11531.026.9µg/m3Trichloroethene 70-130
12635.328.1µg/m3Trichlorofluoromethane 70-130
12029.524.6µg/m31,2,4-Trimethylbenzene 70-130
12430.524.6µg/m31,3,5-Trimethylbenzene 70-130
11925.921.7µg/m3o-Xylene 70-130
11248.643.4µg/m3m,p-Xylene 70-130
98.64-Bromofluorobenzene (S)70-130
Page 31 of 36Date:07/20/2023 10:03 AM
Page 88 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V35067,V35524QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V35063
Associated Lab Samples: 99278
LRB-V35063 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/29/23 11:051.600.073<0.073µg/m3Benzene
06/29/23 11:053.350.150<0.150µg/m3Bromodichloromethane
06/29/23 11:056.230.060<0.060µg/m3Carbon Disulfide
06/29/23 11:052.440.086<0.086µg/m3Chloroform
06/29/23 11:051.030.067<0.067µg/m3Chloromethane
06/29/23 11:053.440.161<0.161µg/m3Cyclohexane
06/29/23 11:053.010.186<0.186µg/m31,4-Dichlorobenzene
06/29/23 11:052.470.134<0.134µg/m3Dichlorodifluoromethane
06/29/23 11:051.980.095<0.095µg/m3cis-1,2-Dichloroethene
06/29/23 11:052.310.205<0.205µg/m31,2-Dichloropropane
06/29/23 11:053.500.622<0.622µg/m31,2-Dichlorotetrafluoroethane
06/29/23 11:051.800.136<0.136µg/m3Ethyl Acetate
06/29/23 11:052.170.106<0.106µg/m3Ethylbenzene
06/29/23 11:052.460.128<0.128µg/m34-Ethyltoluene
06/29/23 11:052.050.143<0.143µg/m3Heptane
06/29/23 11:051.760.047<0.047µg/m3n-Hexane
06/29/23 11:052.050.285<0.285µg/m32-Hexanone
06/29/23 11:051.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK)
06/29/23 11:051.800.033<0.033µg/m3Methyl tert-butyl ether (MTBE)
06/29/23 11:052.050.121<0.121µg/m34-Methyl-2-Pentanone
06/29/23 11:051.740.488<0.488µg/m3Methylene Chloride
06/29/23 11:052.620.183<0.183µg/m3Naphthalene
06/29/23 11:052.130.124<0.124µg/m3Styrene
06/29/23 11:053.390.181<0.181µg/m3Tetrachloroethene
06/29/23 11:051.470.107<0.107µg/m3Tetrahydrofuran
06/29/23 11:051.880.090<0.090µg/m3Toluene
06/29/23 11:052.150.199<0.199µg/m3Trichloroethene
Page 32 of 36Date:07/20/2023 10:03 AM
Page 89 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V35067,V35524QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V35063
Associated Lab Samples: 99278
LRB-V35063 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/29/23 11:052.810.130<0.130µg/m3Trichlorofluoromethane
06/29/23 11:052.460.110<0.110µg/m31,2,4-Trimethylbenzene
06/29/23 11:052.460.236<0.236µg/m31,3,5-Trimethylbenzene
06/29/23 11:052.170.157<0.157µg/m3o-Xylene
06/29/23 11:055.650.217<0.217µg/m3m,p-Xylene
06/29/23 11:054-Bromofluorobenzene (S)98.0 70-130
LCS-V35063Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10116.216.0µg/m3Benzene 70-130
10133.933.5µg/m3Bromodichloromethane 70-130
10816.815.6µg/m3Carbon Disulfide 70-130
10525.524.4µg/m3Chloroform 70-130
10711.010.3µg/m3Chloromethane 70-130
10618.217.2µg/m3Cyclohexane 70-130
11534.630.1µg/m31,4-Dichlorobenzene 70-130
10926.924.7µg/m3Dichlorodifluoromethane 70-130
10921.519.8µg/m3cis-1,2-Dichloroethene 70-130
10323.723.1µg/m31,2-Dichloropropane 70-130
10737.535.0µg/m31,2-Dichlorotetrafluoroethane 70-130
10719.218.0µg/m3Ethyl Acetate 70-130
10723.221.7µg/m3Ethylbenzene 70-130
11027.024.6µg/m34-Ethyltoluene 70-130
10220.920.5µg/m3Heptane 70-130
11019.317.6µg/m3n-Hexane 70-130
10722.020.5µg/m32-Hexanone 70-130
Page 33 of 36Date:07/20/2023 10:03 AM
Page 90 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V35067,V35524QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V35063
LCS-V35063Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10515.614.8µg/m3Methyl Ethyl Ketone (MEK)70-130
10719.318.0µg/m3Methyl tert-butyl ether (MTBE)70-130
10421.320.5µg/m34-Methyl-2-Pentanone 70-130
11219.517.4µg/m3Methylene Chloride 70-130
10728.026.2µg/m3Naphthalene 70-130
10722.721.3µg/m3Styrene 70-130
10134.233.9µg/m3Tetrachloroethene 70-130
10315.114.7µg/m3Tetrahydrofuran 70-130
10119.018.8µg/m3Toluene 70-130
10227.526.9µg/m3Trichloroethene 70-130
11131.128.1µg/m3Trichlorofluoromethane 70-130
11428.024.6µg/m31,2,4-Trimethylbenzene 70-130
11027.124.6µg/m31,3,5-Trimethylbenzene 70-130
10522.821.7µg/m3o-Xylene 70-130
98.842.943.4µg/m3m,p-Xylene 70-130
1004-Bromofluorobenzene (S)70-130
Page 34 of 36Date:07/20/2023 10:03 AM
Page 91 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V35195QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V35191
Associated Lab Samples: 99278
LRB-V35191 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/11/23 00:464.750.2021.52µg/m3Acetone
07/11/23 00:464.920.1390.707µg/m3Isopropyl Alcohol
07/11/23 00:464-Bromofluorobenzene (S)98.3 70-130
LCS-V35191Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
89.010.611.9µg/m3Acetone 70-130
87.810.812.3µg/m3Isopropyl Alcohol 70-130
98.84-Bromofluorobenzene (S)70-130
Page 35 of 36Date:07/20/2023 10:03 AM
Page 92 of 100
Quality Control Data
23-177-0008Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
LEN-008
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V35233QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V35230
Associated Lab Samples: 99279, 99280
LRB-V35230 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/11/23 00:464.750.2021.52µg/m3Acetone
07/11/23 00:464.920.1390.707µg/m3Isopropyl Alcohol
07/11/23 00:464-Bromofluorobenzene (S)98.3 70-130
LCS-V35230Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
89.010.611.9µg/m3Acetone 70-130
87.810.812.3µg/m3Isopropyl Alcohol 70-130
98.84-Bromofluorobenzene (S)70-130
Page 36 of 36Date:07/20/2023 10:03 AM
Page 93 of 100
Fed Ex
UPS
US Postal
Client
Lab
Courier
Other :
Shipment Receipt Form
Customer Number:
Customer Name:
Report Number:23-177-0008
Hart & Hickman (Charlotte)
01102
Shipping Method
Shipping container/cooler uncompromised?
Thermometer ID:N/A
Chain of Custody (COC) present?Yes No
Yes No Not Present
Yes No Not Present
Yes No
COC agrees with sample label(s)? Yes No
COC properly completed
Samples in proper containers?
Sample containers intact?
Sufficient sample volume for indicated test(s)?
All samples received within holding time?
Cooler temperature in compliance?
Yes No
Yes No
Yes No
Yes No
Yes No
Yes NoCooler/Samples arrived at the laboratory on ice.
Samples were considered acceptable as cooling
process had begun.
Yes No
Yes No N/A
Yes No N/A
Yes No N/ASoil VOA method 5035 – compliance criteria met
Water - Sample containers properly preserved
Water - VOA vials free of headspace Yes No N/A
Trip Blanks received with VOAs
Low concentration EnCore samplers (48 hr)
High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)
High concentration container (48 hr)
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Number of coolers/boxes received
Yes No
1
Signature:Angelo Norvell Date & Time:06/26/2023 14:01:53
Special precautions or instructions included?
Comments:
Page 94 of 100
Page 95 of 100
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Page 98 of 100
Page 99 of 100
Page 100 of 100

Appendix D

DEQ Risk Calculators

Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
Building 1 Indoor Air Worst-Case
North Carolina Department of Environmental Quality
Risk Calculator
Charlotte Van and Storage Co.
213 Verbena Street and 4607 Gilead Street, Charlotte, NC
DWM Brownfields
23057-19-060
January 2023
November 2022 EPA RSL Table
7/13/2023
Prepared By:Hart & Hickman
Hart & Hickman
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Building 1 Indoor Air Worst-Case
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Building 1 Indoor Air Worst-Case
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Building 1 Indoor Air Worst-Case
Description of Exposure Point Concentration Selection:
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening Toxicity Value
(Screening Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
458 IAS-1 67-64-1 Acetone ug/m3
0.836 IAS-1 71-43-2 Benzene ug/m3
1.18 IAS-3 75-15-0 Carbon Disulfide ug/m3
0.854 IAS-2 67-66-3 Chloroform ug/m3
1.14 IAS-DUP 74-87-3 Chloromethane ug/m3
18.1 IAS-2 75-71-8 Dichlorodifluoromethane ug/m3
3.09 IAS-DUP 141-78-6 Ethyl Acetate ug/m3
3.23 IAS-DUP 100-41-4 Ethylbenzene ug/m3
21.7 IAS-DUP 109-99-9 ~Tetrahydrofuran ug/m3
7.48 IAS-1 142-82-5 Heptane, N-ug/m3
2.65 IAS-1 110-54-3 Hexane, N-ug/m3
5.91 IAS-DUP 591-78-6 Hexanone, 2-ug/m3
134 IAS-3 67-63-0 Isopropanol ug/m3
43.9 IAS-DUP 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
1.32 IAS-1 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m3
0.562 IAS-2 75-09-2 Methylene Chloride ug/m3
9.77 IAS-1 100-42-5 Styrene ug/m3
0.922 IAS-3 127-18-4 Tetrachloroethylene ug/m3
57.3 IAS-3 108-88-3 Toluene ug/m3
35.4 IAS-2 75-69-4 Trichlorofluoromethane ug/m3
5.05 IAS-DUP 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
0.933 IAS-DUP 108-67-8 Trimethylbenzene, 1,3,5-ug/m3
13.7 IAS-DUP 108-38-3 Xylene, m-ug/m3
4.07 IAS-DUP 95-47-6 Xylene, o-ug/m3
Input Form 2E
Indoor Air Exposure Point Concentration Table
Note: Chemicals highlighted in orange are non-volatile chemicals. Risks are calculated for these chemicals if indoor air concentrations are entered and indoor air screening levels have been established, but it should be noted that detections of these chemicals are likely not associated with vapor intrusion.If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculations
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Indoor Air
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Building 1 Indoor Air Worst-Case
CAS #Chemical Name:
Indoor Air Concentration
(ug/m3)
IUR
(ug/m3)-1
muta-
gen V
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
RfC
(mg/m3)
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 458 V - -71-43-2 Benzene 0.836 0.0000078 V 3.6E-01 3.00E-02 6.3E+00 2.3E-06 2.7E-0275-15-0 Carbon Disulfide 1.18 V -7.00E-01 1.5E+02 1.6E-03
67-66-3 Chloroform 0.854 0.000023 V 1.2E-01 9.80E-02 2.0E+01 7.0E-06 8.4E-03
74-87-3 Chloromethane 1.14 V -9.00E-02 1.9E+01 1.2E-02
75-71-8 Dichlorodifluoromethane 18.1 V -1.00E-01 2.1E+01 1.7E-01
141-78-6 Ethyl Acetate 3.09 V -7.00E-02 1.5E+01 4.2E-02
100-41-4 Ethylbenzene 3.23 0.0000025 V 1.1E+00 1.00E+00 2.1E+02 2.9E-06 3.1E-03109-99-9 ~Tetrahydrofuran 21.7 V -2.00E+00 4.2E+02 1.0E-02142-82-5 Heptane, N-7.48 V -4.00E-01 8.3E+01 1.8E-02110-54-3 Hexane, N-2.65 V -7.00E-01 1.5E+02 3.6E-03591-78-6 Hexanone, 2-5.91 V -3.00E-02 6.3E+00 1.9E-0167-63-0 Isopropanol 134 V -2.00E-01 4.2E+01 6.4E-01
78-93-3 Methyl Ethyl Ketone (2-Butanone)43.9 V -5.00E+00 1.0E+03 8.4E-03
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)1.32 V -3.00E+00 6.3E+02 4.2E-0475-09-2 Methylene Chloride 0.562 0.00000001 M V 1.0E+02 6.00E-01 1.3E+02 5.5E-09 9.0E-04
100-42-5 Styrene 9.77 V -1.00E+00 2.1E+02 9.4E-03
127-18-4 Tetrachloroethylene 0.922 0.00000026 V 1.1E+01 4.00E-02 8.3E+00 8.5E-08 2.2E-02
108-88-3 Toluene 57.3 V -5.00E+00 1.0E+03 1.1E-0275-69-4 Trichlorofluoromethane 35.4 V - -95-63-6 Trimethylbenzene, 1,2,4-5.05 V -6.00E-02 1.3E+01 8.1E-02108-67-8 Trimethylbenzene, 1,3,5-0.933 V -6.00E-02 1.3E+01 1.5E-02108-38-3 Xylene, m-13.7 V -1.00E-01 2.1E+01 1.3E-01
95-47-6 Xylene, o-4.07 V -1.00E-01 2.1E+01 3.9E-02
Cumulative:1.2E-05 1.4E+00
All concentrations are in ug/m3
Output Form 3C
** - Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is not possible to calculate carcinogenic risk or hazard quotient. Lead concentrations
are compared to the National Ambient Air Quality Standard of 0.15 μg/m3.
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Risks are calculated for these values if indoor air concentrations are entered and indoor air screening levels have been established, but it should be noted that detections of these chemicals are likely not associated with vapor intrusion.
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Indoor Air
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Building 1 Indoor Air Worst-Case
CAS #Chemical Name:
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @ TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @ THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard Quotient
67-64-1 Acetone 458 --
71-43-2 Benzene 0.836 1.6E+00 2.6E+01 5.3E-07 6.4E-0375-15-0 Carbon Disulfide 1.18 -6.1E+02 3.8E-04
67-66-3 Chloroform 0.854 5.3E-01 8.6E+01 1.6E-06 2.0E-03
74-87-3 Chloromethane 1.14 -7.9E+01 2.9E-0375-71-8 Dichlorodifluoromethane 18.1 -8.8E+01 4.1E-02
141-78-6 Ethyl Acetate 3.09 -6.1E+01 1.0E-02
100-41-4 Ethylbenzene 3.23 4.9E+00 8.8E+02 6.6E-07 7.4E-04
109-99-9 ~Tetrahydrofuran 21.7 -1.8E+03 2.5E-03142-82-5 Heptane, N-7.48 -3.5E+02 4.3E-03
110-54-3 Hexane, N-2.65 -6.1E+02 8.6E-04
591-78-6 Hexanone, 2-5.91 -2.6E+01 4.5E-0267-63-0 Isopropanol 134 -1.8E+02 1.5E-01
78-93-3 Methyl Ethyl Ketone (2-Butanone)43.9 -4.4E+03 2.0E-03
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)1.32 -2.6E+03 1.0E-04
75-09-2 Methylene Chloride 0.562 1.2E+03 5.3E+02 4.6E-10 2.1E-04100-42-5 Styrene 9.77 -8.8E+02 2.2E-03
127-18-4 Tetrachloroethylene 0.922 4.7E+01 3.5E+01 2.0E-08 5.3E-03
108-88-3 Toluene 57.3 -4.4E+03 2.6E-03
75-69-4 Trichlorofluoromethane 35.4 --
95-63-6 Trimethylbenzene, 1,2,4-5.05 -5.3E+01 1.9E-02108-67-8 Trimethylbenzene, 1,3,5-0.933 -5.3E+01 3.6E-03
108-38-3 Xylene, m-13.7 -8.8E+01 3.1E-02
95-47-6 Xylene, o-4.07 -8.8E+01 9.3E-03
Cumulative:2.8E-06 3.5E-01
All concentrations are in ug/m3
Output Form 3F
** - Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is not possible to calculate carcinogenic risk
or hazard quotient. Lead concentrations are compared to the National Ambient Air Quality Standard of 0.15 μg/m3.
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Risks are calculated for these values if indoor
air concentrations are entered and indoor air screening levels have been established, but it should be noted that detections of these chemicals are likely not
associated with vapor intrusion.
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Building 1 Indoor Air Worst-Case
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air NC NC NC
Indoor Air 1.2E-05 1.4E+00 YES
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air NC NC NC
Indoor Air 2.8E-06 3.5E-01 NO
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
3. NM = Not modeled, user did not check this pathway as complete.
4. NC = Pathway not calculated, required contaminant migration parameters were not entered.
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
Building 1 Sub-Slab Vapor Worst-Case
North Carolina Department of Environmental Quality
Risk Calculator
Charlotte Van and Storage Co.
213 Verbena Street and 4607 Gilead Street, Charlotte, NC
DWM Brownfields
23057-19-060
January 2023
November 2022 EPA RSL Table
7/13/2023
Prepared By:Hart & Hickman
Hart & Hickman
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Building 1 Sub-Slab Vapor Worst-Case
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Building 1 Sub-Slab Vapor Worst-Case
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Building 1 Sub-Slab Vapor Worst-Case
Description of Exposure Point Concentration Selection:
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical
Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units
Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening
Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
5970 SS-MP-7 67-64-1 Acetone ug/m3
1.06 SS-MP-DUP 71-43-2 Benzene ug/m3
1.39 SS-MP-9 75-27-4 Bromodichloromethane ug/m3
4.61 SS-MP-7 75-15-0 Carbon Disulfide ug/m3
40.2 SS-MP-6 67-66-3 Chloroform ug/m3
2.14 SS-MP-2 74-87-3 Chloromethane ug/m3
2.36 SS-MP-4 110-82-7 Cyclohexane ug/m3
3.14 SS-MP-9 75-71-8 Dichlorodifluoromethane ug/m3
2.16 SS-MP-6 78-87-5 Dichloropropane, 1,2-ug/m3
3.79 SS-MP-DUP 141-78-6 Ethyl Acetate ug/m3
4.57 SS-MP-2 100-41-4 Ethylbenzene ug/m3
14000 SS-MP-7 109-99-9 ~Tetrahydrofuran ug/m3
2.64 SS-MP-DUP 142-82-5 Heptane, N-ug/m3
1.67 SS-MP-9 110-54-3 Hexane, N-ug/m3
5.75 SS-MP-5 591-78-6 Hexanone, 2-ug/m3
103 SS-MP-5 67-63-0 Isopropanol ug/m3
3780 SS-MP-5 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
1.45 SS-MP-5 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m3
4.93 SS-MP-9 75-09-2 Methylene Chloride ug/m3
4.15 SS-MP-6 91-20-3 ~Naphthalene ug/m3
5.95 SS-MP-5 100-42-5 Styrene ug/m3
40.2 SS-MP-4 127-18-4 Tetrachloroethylene ug/m3
60.4 SS-MP-DUP 108-88-3 Toluene ug/m3
4.26 SS-MP-9 75-69-4 Trichlorofluoromethane ug/m3
4.58 SS-MP-DUP 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
1.86 SS-MP-2 108-67-8 Trimethylbenzene, 1,3,5-ug/m3
22.3 SS-MP-2 108-38-3 Xylene, m-ug/m3
6.62 SS-MP-DUP 95-47-6 Xylene, o-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculations
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Building 1 Sub-Slab Vapor Worst-Case
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 5970 179.1 --
71-43-2 Benzene 1.06 0.0318 3.6E-01 6.3E+00 8.8E-08 1.0E-03
75-27-4 Bromodichloromethane 1.39 0.0417 7.6E-02 -5.5E-07
75-15-0 Carbon Disulfide 4.61 0.1383 -1.5E+02 1.9E-04
67-66-3 Chloroform 40.2 1.206 1.2E-01 2.0E+01 9.9E-06 1.2E-02
74-87-3 Chloromethane 2.14 0.0642 -1.9E+01 6.8E-04
110-82-7 Cyclohexane 2.36 0.0708 -1.3E+03 1.1E-05
75-71-8 Dichlorodifluoromethane 3.14 0.0942 -2.1E+01 9.0E-04
78-87-5 Dichloropropane, 1,2-2.16 0.0648 7.6E-01 8.3E-01 8.5E-08 1.6E-02
141-78-6 Ethyl Acetate 3.79 0.1137 -1.5E+01 1.6E-03
100-41-4 Ethylbenzene 4.57 0.1371 1.1E+00 2.1E+02 1.2E-07 1.3E-04
109-99-9 ~Tetrahydrofuran 14000 420 -4.2E+02 2.0E-01
142-82-5 Heptane, N-2.64 0.0792 -8.3E+01 1.9E-04
110-54-3 Hexane, N-1.67 0.0501 -1.5E+02 6.9E-05
591-78-6 Hexanone, 2-5.75 0.1725 -6.3E+00 5.5E-03
67-63-0 Isopropanol 103 3.09 -4.2E+01 1.5E-02
78-93-3 Methyl Ethyl Ketone (2-Butanone)3780 113.4 -1.0E+03 2.2E-02
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)1.45 0.0435 -6.3E+02 1.4E-05
75-09-2 Methylene Chloride 4.93 0.1479 1.0E+02 1.3E+02 1.5E-09 2.4E-04
91-20-3 ~Naphthalene 4.15 0.1245 8.3E-02 6.3E-01 1.5E-06 4.0E-02
100-42-5 Styrene 5.95 0.1785 -2.1E+02 1.7E-04
127-18-4 Tetrachloroethylene 40.2 1.206 1.1E+01 8.3E+00 1.1E-07 2.9E-02
108-88-3 Toluene 60.4 1.812 -1.0E+03 3.5E-04
75-69-4 Trichlorofluoromethane 4.26 0.1278 --
95-63-6 Trimethylbenzene, 1,2,4-4.58 0.1374 -1.3E+01 2.2E-03
108-67-8 Trimethylbenzene, 1,3,5-1.86 0.0558 -1.3E+01 8.9E-04
108-38-3 Xylene, m-22.3 0.669 -2.1E+01 6.4E-03
95-47-6 Xylene, o-6.62 0.1986 -2.1E+01 1.9E-03
Cumulative:1.2E-05 3.6E-01
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Building 1 Sub-Slab Vapor Worst-Case
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 5970 59.7 --
71-43-2 Benzene 1.06 0.0106 1.6E+00 2.6E+01 6.7E-09 8.1E-05
75-27-4 Bromodichloromethane 1.39 0.0139 3.3E-01 -4.2E-08
75-15-0 Carbon Disulfide 4.61 0.0461 -6.1E+02 1.5E-05
67-66-3 Chloroform 40.2 0.402 5.3E-01 8.6E+01 7.5E-07 9.4E-04
74-87-3 Chloromethane 2.14 0.0214 -7.9E+01 5.4E-05
110-82-7 Cyclohexane 2.36 0.0236 -5.3E+03 9.0E-07
75-71-8 Dichlorodifluoromethane 3.14 0.0314 -8.8E+01 7.2E-05
78-87-5 Dichloropropane, 1,2-2.16 0.0216 3.3E+00 3.5E+00 6.5E-09 1.2E-03
141-78-6 Ethyl Acetate 3.79 0.0379 -6.1E+01 1.2E-04
100-41-4 Ethylbenzene 4.57 0.0457 4.9E+00 8.8E+02 9.3E-09 1.0E-05
109-99-9 ~Tetrahydrofuran 14000 140 -1.8E+03 1.6E-02
142-82-5 Heptane, N-2.64 0.0264 -3.5E+02 1.5E-05
110-54-3 Hexane, N-1.67 0.0167 -6.1E+02 5.4E-06
591-78-6 Hexanone, 2-5.75 0.0575 -2.6E+01 4.4E-04
67-63-0 Isopropanol 103 1.03 -1.8E+02 1.2E-03
78-93-3 Methyl Ethyl Ketone (2-Butanone)3780 37.8 -4.4E+03 1.7E-03
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)1.45 0.0145 -2.6E+03 1.1E-06
75-09-2 Methylene Chloride 4.93 0.0493 1.2E+03 5.3E+02 4.0E-11 1.9E-05
91-20-3 ~Naphthalene 4.15 0.0415 3.6E-01 2.6E+00 1.2E-07 3.2E-03
100-42-5 Styrene 5.95 0.0595 -8.8E+02 1.4E-05
127-18-4 Tetrachloroethylene 40.2 0.402 4.7E+01 3.5E+01 8.5E-09 2.3E-03
108-88-3 Toluene 60.4 0.604 -4.4E+03 2.8E-05
75-69-4 Trichlorofluoromethane 4.26 0.0426 --
95-63-6 Trimethylbenzene, 1,2,4-4.58 0.0458 -5.3E+01 1.7E-04
108-67-8 Trimethylbenzene, 1,3,5-1.86 0.0186 -5.3E+01 7.1E-05
108-38-3 Xylene, m-22.3 0.223 -8.8E+01 5.1E-04
95-47-6 Xylene, o-6.62 0.0662 -8.8E+01 1.5E-04
Cumulative:9.4E-07 2.8E-02
All concentrations are in ug/m3
Output Form 3E
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Building 1 Sub-Slab Vapor Worst-Case
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.2E-05 3.6E-01 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 9.4E-07 2.8E-02 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
3. NM = Not modeled, user did not check this pathway as complete.
4. NC = Pathway not calculated, required contaminant migration parameters were not entered.
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
Clubhouse Sub-Slab Vapor Worst-Case
North Carolina Department of Environmental Quality
Risk Calculator
Charlotte Van and Storage Co.
213 Verbena Street and 4607 Gilead Street, Charlotte, NC
DWM Brownfields
23057-19-060
January 2023
November 2022 EPA RSL Table
7/13/2023
Prepared By:Hart & Hickman
Hart & Hickman
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Clubhouse Sub-Slab Vapor Worst-Case
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Clubhouse Sub-Slab Vapor Worst-Case
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Clubhouse Sub-Slab Vapor Worst-Case
Description of Exposure Point Concentration Selection:
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical
Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units
Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening
Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
76 67-64-1 Acetone ug/m3
0.759 75-15-0 Carbon Disulfide ug/m3
1.43 67-66-3 Chloroform ug/m3
2.57 75-71-8 Dichlorodifluoromethane ug/m3
14.8 141-78-6 Ethyl Acetate ug/m3
0.534 100-41-4 Ethylbenzene ug/m3
601 109-99-9 ~Tetrahydrofuran ug/m3
0.356 142-82-5 Heptane, N-ug/m3
0.437 110-54-3 Hexane, N-ug/m3
3.48 67-63-0 Isopropanol ug/m3
274 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
5.04 108-88-3 Toluene ug/m3
2 75-69-4 Trichlorofluoromethane ug/m3
0.535 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
2.34 108-38-3 Xylene, m-ug/m3
0.673 95-47-6 Xylene, o-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculations
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Clubhouse Sub-Slab Vapor Worst-Case
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 76 0.76 --
75-15-0 Carbon Disulfide 0.759 0.00759 -6.1E+02 2.5E-06
67-66-3 Chloroform 1.43 0.0143 5.3E-01 8.6E+01 2.7E-08 3.3E-05
75-71-8 Dichlorodifluoromethane 2.57 0.0257 -8.8E+01 5.9E-05
141-78-6 Ethyl Acetate 14.8 0.148 -6.1E+01 4.8E-04
100-41-4 Ethylbenzene 0.534 0.00534 4.9E+00 8.8E+02 1.1E-09 1.2E-06
109-99-9 ~Tetrahydrofuran 601 6.01 -1.8E+03 6.9E-04
142-82-5 Heptane, N-0.356 0.00356 -3.5E+02 2.0E-06
110-54-3 Hexane, N-0.437 0.00437 -6.1E+02 1.4E-06
67-63-0 Isopropanol 3.48 0.0348 -1.8E+02 4.0E-05
78-93-3 Methyl Ethyl Ketone (2-Butanone)274 2.74 -4.4E+03 1.3E-04
108-88-3 Toluene 5.04 0.0504 -4.4E+03 2.3E-06
75-69-4 Trichlorofluoromethane 2 0.02 --
95-63-6 Trimethylbenzene, 1,2,4-0.535 0.00535 -5.3E+01 2.0E-05
108-38-3 Xylene, m-2.34 0.0234 -8.8E+01 5.3E-05
95-47-6 Xylene, o-0.673 0.00673 -8.8E+01 1.5E-05
Cumulative:2.8E-08 1.5E-03
All concentrations are in ug/m3
Output Form 3E
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Clubhouse Sub-Slab Vapor Worst-Case
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 2.8E-08 1.5E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
3. NM = Not modeled, user did not check this pathway as complete.
4. NC = Pathway not calculated, required contaminant migration parameters were not entered.
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
7/13/2023
Prepared By:Hart & Hickman
Hart & Hickman
Maintenance Room Sub-Slab Vapor Worst-Case
North Carolina Department of Environmental Quality
Risk Calculator
Charlotte Van and Storage Co.
213 Verbena Street and 4607 Gilead Street, Charlotte, NC
DWM Brownfields
23057-19-060
January 2023
November 2022 EPA RSL Table
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Maintenance Room Sub-Slab Vapor Worst-Case
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Maintenance Room Sub-Slab Vapor Worst-Case
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Maintenance Room Sub-Slab Vapor Worst-Case
Description of Exposure Point Concentration Selection:
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical
Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units
Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening
Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
46.5 67-64-1 Acetone ug/m3
3.56 71-43-2 Benzene ug/m3
2.54 75-15-0 Carbon Disulfide ug/m3
51.3 67-66-3 Chloroform ug/m3
3.19 110-82-7 Cyclohexane ug/m3
1.02 106-46-7 Dichlorobenzene, 1,4-ug/m3
4.47 156-59-2 Dichloroethylene, cis-1,2-ug/m3
2.45 78-87-5 Dichloropropane, 1,2-ug/m3
24.7 100-41-4 Ethylbenzene ug/m3
22.2 109-99-9 ~Tetrahydrofuran ug/m3
0.848 142-82-5 Heptane, N-ug/m3
2.07 110-54-3 Hexane, N-ug/m3
289 67-63-0 Isopropanol ug/m3
1.76 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
0.356 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m3
0.407 1634-04-4 Methyl tert-Butyl Ether (MTBE)ug/m3
3.84 75-09-2 Methylene Chloride ug/m3
4.6 100-42-5 Styrene ug/m3
3.14 127-18-4 Tetrachloroethylene ug/m3
15.1 108-88-3 Toluene ug/m3
0.999 79-01-6 Trichloroethylene ug/m3
20.2 75-69-4 Trichlorofluoromethane ug/m3
1.27 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
33.2 108-38-3 Xylene, m-ug/m3
9.09 95-47-6 Xylene, o-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculations
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Maintenance Room Sub-Slab Vapor Worst-Case
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 46.5 0.465 --
71-43-2 Benzene 3.56 0.0356 1.6E+00 2.6E+01 2.3E-08 2.7E-04
75-15-0 Carbon Disulfide 2.54 0.0254 -6.1E+02 8.3E-06
67-66-3 Chloroform 51.3 0.513 5.3E-01 8.6E+01 9.6E-07 1.2E-03
110-82-7 Cyclohexane 3.19 0.0319 -5.3E+03 1.2E-06
106-46-7 Dichlorobenzene, 1,4-1.02 0.0102 1.1E+00 7.0E+02 9.1E-09 2.9E-06
156-59-2 Dichloroethylene, cis-1,2-4.47 0.0447 -3.5E+01 2.6E-04
78-87-5 Dichloropropane, 1,2-2.45 0.0245 3.3E+00 3.5E+00 7.4E-09 1.4E-03
100-41-4 Ethylbenzene 24.7 0.247 4.9E+00 8.8E+02 5.0E-08 5.6E-05
109-99-9 ~Tetrahydrofuran 22.2 0.222 -1.8E+03 2.5E-05
142-82-5 Heptane, N-0.848 0.00848 -3.5E+02 4.8E-06
110-54-3 Hexane, N-2.07 0.0207 -6.1E+02 6.8E-06
67-63-0 Isopropanol 289 2.89 -1.8E+02 3.3E-03
78-93-3 Methyl Ethyl Ketone (2-Butanone)1.76 0.0176 -4.4E+03 8.0E-07
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)0.356 0.00356 -2.6E+03 2.7E-07
1634-04-4 Methyl tert-Butyl Ether (MTBE)0.407 0.00407 4.7E+01 2.6E+03 8.6E-11 3.1E-07
75-09-2 Methylene Chloride 3.84 0.0384 1.2E+03 5.3E+02 3.1E-11 1.5E-05
100-42-5 Styrene 4.6 0.046 -8.8E+02 1.1E-05
127-18-4 Tetrachloroethylene 3.14 0.0314 4.7E+01 3.5E+01 6.7E-10 1.8E-04
108-88-3 Toluene 15.1 0.151 -4.4E+03 6.9E-06
79-01-6 Trichloroethylene 0.999 0.00999 3.0E+00 1.8E+00 3.3E-09 1.1E-03
75-69-4 Trichlorofluoromethane 20.2 0.202 --
95-63-6 Trimethylbenzene, 1,2,4-1.27 0.0127 -5.3E+01 4.8E-05
108-38-3 Xylene, m-33.2 0.332 -8.8E+01 7.6E-04
95-47-6 Xylene, o-9.09 0.0909 -8.8E+01 2.1E-04
Cumulative:1.1E-06 8.9E-03
All concentrations are in ug/m3
Output Form 3E
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: 23057-19-060
Exposure Unit ID: Maintenance Room Sub-Slab Vapor Worst-Case
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.1E-06 8.9E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not modeled, user did not check this pathway as complete.
4. NC = Pathway not calculated, required contaminant migration parameters were not entered.
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
North Carolina DEQ Risk Calculator