23076_RalMGP2II_PostConstVIReport_20230818

POST-CONSTRUCTION/PRE-OCCUPANCY VIMS REPORT
FORMER RALEIGH MGP NO. 2
AKA PLATFORM, PHASE I REDEVELOPMENT
600 WEST CABARRUS STREET
RALEIGH, NORTH CAROLINA
BROWNFIELDS PROJECT NO.: 23076-19-092
FORMERLY 13022-09-92
MID -ATLANTIC PE LICENSE: F-0967
REVISION NO.: 0
MID -ATLANTIC JOB NO. OOOR3746.00
August 16, 2023
Prospective Developer:
KL Platform Owner, LLC
Allen McCollum
4321 Lassiter at North Hills Avenue, Suite 250
Raleigh, North Carolina 27609
Phone: [phone]
Email: amccollumAkanerealtycorp.com
Consultant:
Mid -Atlantic Associates, Inc.
Daniel H. Nielsen, PE
409 Rogers View Court
Raleigh, North Carolina, 27610
Phone: [phone]
Email: dnielsen(cDmaaonline.com
Brownfields Project Manager:
Sharon Eckard, PG
Mail Service Center 1646
Raleigh, North Carolina, 27699
Phone: [phone]
Email: sharon.eckard(cDdeg.nc.gov
The Vapor Intrusion Mitigation System (VIMS) detailed herein is designed to mitigate intrusion of subsurface
vapors into the subject building from known Brownfields Property contaminants in a manner that is in
accordance with the most recent and applicable guidelines including, but not limited to, DWM Vapor Intrusion
Guidance, Interstate Technology & Regulatory Council (ITRC) guidance, and American National Standards
Institute (ANSI)/American Association of Radon Scientists and Technologists (AARST) standards. The sealing
professional engineer below is satisfied that the design and its installation are fully protective of public health
from known Brownfields Property contaminants.
6elni
1 S
4 �1,
Nolen Barefoot
Project Scientist
Ift Mid Atlantic

TABLE OF CONTENTS
1.0
GENERAL INFORMATION....................................................................................1
2.0
VIMS CONSTRUCTION..........................................................................................2
2.1
VIMS Design Changes.........................................................................................
2
2.2
VIMS Construction Inspections.............................................................................2
2.3
VIMS Influence Testing........................................................................................
2
3.0
PRE -OCCUPANCY ANALYTICAL TESTING........................................................ 3
3.1
Indoor Air Sample Collection................................................................................
4
3.2
Sub -Slab Soil Gas Sample Collection..................................................................
5
4.0
SUMMARY OF LABORATORY ANALYTICAL RESULTS....................................6
4.1
Indoor Air Sampling Results.................................................................................
6
4.2
Soil Gas Sampling Results...................................................................................
7
4.3
Risk Evaluation Methodology...............................................................................
7
4.3.1
Indoor Air Risk Evaluation and Results......................................................... 8
4.3.2
Sub -Slab Soil Gas Risk Evaluation and Results ..........................................
14
5.0
QUALITY ASSURANCE.......................................................................................14
6.0
SUMMARY AND CONCLUSIONS.......................................................................15
FIGURES
Figure 1
Topographic Site Map
Figure 2
Site Redevelopment Plan
Figure 3
As -Built VIMS Monitoring Network
Figure 4
As -Built VIMS Sub -Slab Components — Building A
Figure 5
As -Built VIMS Sub -Slab Components — Building B
Figure 6
Exposure Units
TABLES
Table 1
Sub -Slab Depressurization Influence Results
Table 2
Monitoring Point and Indoor Air Sample Summary
Table 3
Chemical Constituents Analyzed in Indoor Air
Table 4
Chemical Constituents Analyzed in Soil Gas
Table 5
Pre -Occupancy Indoor Air/Soil Gas Testing Risk Assessment Summary
APPENDICES
Appendix A VIMS Inspection Logs
Appendix B Indoor Air Building Survey and Sampling Form
Appendix C Field Notes
Appendix D Laboratory Analytical Reports and Chain -of -Custody Records for
Indoor/Ambient Air
Appendix E Laboratory Analytical Reports and Chain -of -Custody Records for
Sub -Slab Soil Gas Samples
Appendix F Indoor Air and Sub -Slab Soil Gas Vapor Intrusion Risk Calculations
0 Mid Atlantic

1.0 GENERAL INFORMATION
The subject site is on 5.7 acres located at the northwest quadrant of the intersection of West
Cabarrus Street and South West Street in Raleigh, North Carolina (Figure 1). Data collected
during assessment activities associated with historical use of the site as a manufactured gas
plant (MGP), lumber facility, and equipment maintenance facility have identified impacts to
soil, groundwater, and soil gas. The contaminants include volatile organic compounds
(VOCs), both chlorinated solvents and petroleum compounds. In April 2021, sub -slab soil
gas sampling activities were conducted that are summarized in Mid -Atlantic's Sub -Slab Soil
Gas Assessment Report, dated May 28, 2021 (revised May 26, 2023). The VOCs detected
in soil gas and groundwater on and near the subject site suggest that a vapor encroachment
condition exists. Therefore, a Vapor Intrusion Mitigation System (VIMS) has been
constructed in conjunction with redevelopment. The VIMS was constructed in accordance
with the Vapor Intrusion Mitigation System Design Submittal, Revision 1 dated February 7,
2022 (VIMS Plan). This VIMS Plan was developed for Phase I Redevelopment, which is
located on the western portion of the site (600 West Cabarrus Street) and also known as
Platform (a separate VIMS Plan was developed for Phase II Redevelopment on the eastern
portion of the site). This VIMS Plan was approved by the Brownfields Program (now known
as Brownfields Redevelopment Section (BRS)) on March 3, 2022. Section 4 of the VIMS
Plan outlines the Post-Construction/Pre-Occupation System Effectiveness Testing
requirements. The VIMS Plan outlines a sequential sampling approach where the initial
sampling is limited to sampling the 25 sub -slab monitoring points included in the VIMS
design. Under this BRS-approved VIMS Plan, indoor air sampling would only be conducted
if/where the sub -slab soil gas testing results indicated it was warranted. After approval of the
VIMS Plan, and in consultation with the BRS, the Prospective Developer elected to add
indoor air sampling to the initial pre -occupancy testing regime in order to expedite BRS's
occupancy approval process. Addendum 1 to the VIMS Plan, dated May 25, 2023,
documented that the indoor air sampling would be conducted just prior to the sub -slab
sampling versus the original sequential approach. This addendum was approved by the
BRS on May 26, 2023.
The site is being redeveloped for mixed commercial/residential use. The new
development is seven stories tall and built around an inner courtyard with pedestrian
entrances to the courtyard from the south, east, and west. The designers have divided
the structure into three buildings (A, B, and C, Figure 2). Building A is on the southern
portion of the site and is divided by the southern courtyard entrance. This creates two
areas of ground contact of nearly equal size. These two areas will be occupied on the
ground floor by commercial enterprises and building support facilities. The foundation of
Building A is slab -on -grade. Residential use is planned for the floors above ground floor.
Building B, located north of Building A, is separated from Building A on the ground floor
by the eastern and western pedestrian entrances to the courtyard. Building B is U-shaped,
wrapping around the courtyard and its swimming pool. The slab -on -grade ground floor of
Building B will be occupied by commercial enterprises to the west, recreational and fitness
facilities to the north, and offices to the east. Floors 2 through 7 of Building B are planned
for residential use and connect to Buildings A and C. Building C is the northernmost
building. The ground floor of Building C is slab -on -grade parking with portions dedicated
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Post-Construction/Pre-Occupancy VIMS Report
Former Raleigh MGP 2, Phase 1 Redevelopment
Raleigh, North Carolina
Brownfields Project Number 23076-19-092
August 16, 2023
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to apartment building support facilities. Floors 2 through 7 of Building C include parking
facilities in the center surrounded by residential apartments around the perimeter of each
floor. There are no ground floor residential or commercial uses in Building C.
2.0 VIMS CONSTRUCTION
Section 3 of the VIMS Plan outlines quality control and quality assurance measures
required to assure the VIMS will operate effectively. The following is a summary of
construction -related activities associated with the VIMS.
2.1 VIMS Design Changes
As construction has progressed, design changes to the buildings were required. The design
changes were minor and did not require changes to the monitoring point network or VIMS
construction. Attached Figure 3 illustrates the monitoring point network, and Figures 4 and
5 illustrate the sub -slab vapor collection pit and piping locations. The VIMS was constructed
in general accordance with the design.
2.2 VIMS Construction Inspections
In accordance with the VIMS Plan, inspections of the VIMS were conducted at key times
by Mid -Atlantic personnel. The project general contractor was Clancy and Theys
Construction Company (C&T). The vapor barrier used for this project was VaporBlock Plus
20, which was installed by C&T's concrete subcontractor. Vent piping was installed by
C&T's plumbing subcontractor. Barrier integrity smoke testing was conducted by RDH
Environmental Consultants (RDH) and witnessed by Mid -Atlantic.
An inspection log was completed for each inspection by Mid -Atlantic personnel (Appendix
A). Each inspection log contains a checklist, notes describing the inspections, and
photographs. Where the depressurization system was constructed (Buildings A and B), the
gravel layer, sub -slab piping, and vapor collection pits were inspected by Mid -Atlantic
personnel prior to placement of the VaporBlock Plus 20 vapor barrier. For all areas with
vapor mitigation infrastructure, inspections were also conducted after placement and during
smoke testing of the VaporBlock Plus 20 but prior to pouring the concrete floor. In total, 25
inspections were conducted during the construction of the VIMS.
2.3 VIMS Influence Testing
The VIMS that includes sub -slab depressurization is in portions of Buildings A and B. The
VIMS in Building C is barrier only. The influence testing was conducted in sub -slab
depressurization areas to demonstrate that the VIMS could provide acceptable
depressurization beneath the building floor slabs. It was initially conducted after the
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Post-Construction/Pre-Occupancy VIMS Report
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Brownfields Project Number 23076-19-092
August 16, 2023
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installation of the concrete floors and monitoring points, but prior to the completion of the
risers. To test the influence of the sub -slab depressurization system, fans were placed on
the risers and activated. With the fan running, the pressure differential between the sub -
slab and the interior space directly above the monitoring point was measured using a TSI
DP Calc meter. These measurements were recorded at six locations (MP-1, 2, 3, 5, 6 and
7, Figure 3) in Building A and 11 locations (MP-10 thru 20, Figure 3) in Building B. The
design goal is to achieve a -4 pascal (pa) or greater pressure differential across the slab
(less pressure below slab than above). The results of the final testing conducted on May
31, 2023, after the riser construction was completed, are summarized in Table 1, and show
differential pressures ranging from -22.3 pa to -803.7 pa. These results indicate that the
design goal was achieved at all 17 monitoring points.
3.0 PRE -OCCUPANCY ANALYTICAL TESTING
The objective of this testing was to provide pre -occupancy data from Buildings A, B, and C
to support evaluation of possible vapor intrusion risks and based on those risks, to provide
the basis for approval for building occupancy and determine whether the active VIMS (i.e.,
sub -slab depressurization) should be activated. As detailed in the VIMS Plan and
Addendum 1, pre -occupancy data consists of testing paired sub -slab soil gas and indoor
air samples for the presence of VOCs by EPA Method TO-15.
The evaluation included collection of 25 paired indoor air/sub-slab soil gas samples, one
ambient outdoor air sample, two duplicate indoor air samples, and two duplicate sub -slab
soil gas samples. Due to a transit -damaged canister, one planned indoor air sample (IA-
20) was not tested. Table 2 provides summary information for all sampling points and
Figure 3 illustrates sample locations. Sampling was performed in general accordance with
the Vapor Intrusion Mitigation System Design Submittal, Revision 1, including Addendum 1,
as well as the following published documents:
• NCDEQ, Brownfields Redevelopment Section, Vapor Intrusion Assessment Work
Plan & Report Checklist (February 2023);
• NCDEQ, Inactive Hazardous Sites Branch, Guidelines for Assessment and
Cleanup of Contaminated Sites (September 2022);
• NCDEQ, Division of Waste Management, Vapor Intrusion Guidance (March 2018);
and
• The Interstate Technology & Regulatory Council Vapor Intrusion Mitigation
Training Team Technical Resources for Vapor Mitigation Training (December
2020).
All indoor air and sub -slab soil gas sample points were co -located and sampling was closely
sequenced such that the indoor air samples were collected just prior to the soil gas
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samples. This sequencing prevented the opening and purging of the sub -slab monitoring
points from inadvertently introducing sub -slab contamination and influencing indoor air test
results.
3.1 Indoor Air Sample Collection
On May 30, 2023, Mid -Atlantic conducted site reconnaissance to identify potential sources
(materials and activities) of indoor air VOC contaminants inside relevant portions of
Buildings A, B, and C. The objective was to differentiate VOCs detected in indoor air
associated with construction activities from possible vapor intrusion sources. The results of
the survey are included in the Indoor Air Building Survey and Sampling Form attached in
Appendix B. During the performance of the survey, small quantities (<5 gallons) of latex
paint, primer, adhesives, grout, and joint compound were found throughout the buildings.
Minor painting and finishing associated with typical construction activities had been
performed throughout the buildings. Diesel and gasoline -powered equipment was in the
courtyard, which is surrounded by Buildings A and B. Some doors and windows were yet
to be installed. At these locations, plastic sheeting was taped in place to enclose the space
and simulate the presence of these doors and windows. The HVAC systems were not
operational at the time of sampling. The HVAC systems for the commercial areas of
Buildings A and B will not be constructed until tenants for these spaces are under contract.
On June 3-4, 2023, Mid -Atlantic collected 25 indoor air samples (IA-1 through IA-25), one
outdoor (ambient) air sample (OA), and two duplicate samples (duplicates of IA-7 and IA-
25, Appendix C). These sample locations are summarized in Table 2 and shown in Figure
3. During sampling, the buildings were kept locked/sealed to prevent access to the testing
areas. The procedures used to collect these samples are described in detail in Addendum
1 to the VIMS Plan.
All indoor air samples were collected using laboratory -supplied 6-liter, individually certified,
stainless -steel Summa canisters and flow regulators designed to restrict the maximum flow
rate to 3-4 milliliters per minute (mL/min). The intakes for the canisters were set
approximately between 3-5 feet above the floor and the initial vacuums displayed on the
laboratory -supplied vacuum gauges on the flow regulators were recorded. The canisters
used during indoor air sampling activities were confirmed to have retained greater than
90% of their initial volume (>27" Hg) prior to sampling. The canisters were left open over
an approximately 24-hour period and closed once 24 hours had passed or a vacuum of 5"
Hg was achieved. The duplicate indoor air samples were collected concurrently with the
primary sample and the ambient outdoor air sample was collected at an unwind location.
Upon collection, the indoor air samples were shipped to Con -Test, a Pace Analytical
Laboratory, in East Longmeadow, Massachusetts under chain -of -custody control for
analysis. The canisters were analyzed in the laboratory for VOCs according to EPA Method
TO-15 (full list).
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Post-Construction/Pre-Occupancy VIMS Report
Former Raleigh MGP 2, Phase 1 Redevelopment
Raleigh, North Carolina
Brownfields Project Number 23076-19-092
3.2 Sub -Slab Soil Gas Sample Collection
August 16, 2023
Page 5
Mid -Atlantic returned to the site on June 7, 2023, to collect 25 sub -slab soil gas samples
(MP-1 through 25) and two duplicate samples (duplicates of MP-1 and MP-13, Appendix
C). These sample locations are summarized in Table 2 and shown in Figure 3. The
procedures used to collect these samples are described in detail in the VIMS Plan.
As detailed in the VIMS Plan, a leak check was conducted at each of the sub -slab soil gas
monitoring points prior to sample collection. Helium concentrations of at least 100,000 parts
per million (ppm) were maintained in the shroud during purging. Helium was not detected
within the Tedlar bag at a concentration exceeding NCDEQ's acceptable guideline of ten
percent of the helium concentration under the plastic shroud at any of the sampling
locations. As such, unacceptable leaks were not detected prior to soil gas sample
collection. The results of Mid -Atlantic's helium leak checks at each sample location are as
follows:
Sample ID
Helium Concentration
Under Shroud
Helium Concentration
in Tedlar Bag
MP-1
10.5 % (105,000 ppm)
50 ppm
MP-1 DUP
15.8 % 158,000 m
2800 ppm
MP-2
10.0 % 100,000 ppm
150 ppm
MP-3
12.2 % 122,000 m
0 ppm
MP-4
11.2 % 112,000 m
0 ppm
MP-5
10.0 % 100,000 m
0 ppm
MP-6
11.3 % 113,000 m
0 ppm
MP-7
11.6 % 116,000 ppm
0 ppm
MP-8
10.4 % (104,000 ppm)
0 ppm
MP-9
12.8 % 128,000 m
0 ppm
MP-10
12.7 % 127,000 m
0 ppm
MP-11
10.2% 102,000 m
0 ppm
MP-12
10.0% 100,000 m
0 ppm
MP-13
10.5% (105,000 ppm)
0 ppm
MP-13 DUP
10.0% 100,000 m
100 ppm
MP-14
11.9% 119,000 m
150 ppm
MP-15
23.4% 234,000 m
0 ppm
MP-16
11.1% 111,000 m
0 ppm
MP-17
12.0% 120,000 ppm
0 ppm
MP-18
12.3% (123,000 m)
75 ppm
MP-19
12.8% 128,000 m
0 ppm
MP-20
12.5% 125,000 m
725 ppm
MP-21
11.6% 116,000 m
0 ppm
MP-22
18.5% 185,000 m
75 ppm
MP-23
12.4% (124,000 ppm)
0 ppm
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Post-Construction/Pre-Occupancy VIMS Report
Former Raleigh MGP 2, Phase 1 Redevelopment
Raleigh, North Carolina
Brownfields Project Number 23076-19-092
August 16, 2023
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Sample ID
Helium Concentration
Helium Concentration
Under Shroud
in Tedlar Bag
MP-24
13.5% (135,000 ppm)
0 ppm
MP-25
15.3% 153,000 m
0 ppm
After performing the helium leak check at each sub -slab soil gas sample location, soil gas
samples were collected using laboratory -supplied 1-liter, batch -certified, stainless -steel
Summa canisters and flow regulators at a maximum flow rate of 200 mL/min. The
canisters used during soil gas sampling activities were confirmed to have retained greater
than 90% of their initial volume (>27" Hg) prior to sampling. The initial vacuums displayed
on the laboratory -supplied vacuum gauges on the flow controllers were recorded. The
canisters were left open over an approximately five-minute period and closed once a
vacuum of 5" Hg was achieved. Once primary samples MP-1 and MP-13 were collected,
the Summa canister was disconnected. The duplicate canister was then connected to the
sample location and leak tested as described above. The seal around the vapor probe
was determined to be acceptable and duplicates MP-1 DUP and MP-13 DUP were
collected using a Summa canister identical to the ones used for the primary samples.
Upon collection, the soil gas samples were shipped to Con -Test under chain -of -custody
control for analysis. The canisters were analyzed in the laboratory for VOCs according to
EPA Method TO-15 (full list). Mercury contamination was not expected at the site;
therefore, samples were not submitted for mercury vapor analysis.
4.0 SUMMARY OF LABORATORY ANALYTICAL RESULTS
The laboratory analytical reports and chain -of -custody records for the indoor/ambient air
samples and sub -slab soil gas samples are provided in Appendix D and Appendix E with
results summarized in Tables 3 and 4, respectively. The ground floor use of Buildings A
and B is commercial, and the ground floor use of Building C is primarily parking. However,
the second through seventh floor of each building is residential use. Therefore, sample
results were compared to the NCDEQ Division of Waste Management (DWM) January
2023 Residential Indoor Air Screening Levels (IASLs) and Soil Gas Screening Levels
(SGSLs).
4.1 Indoor Air Sampling Results
Indoor air sample results are summarized in Table 3. During the sampling event conducted
on June 3-4, 2023, eight compounds were detected at concentrations exceeding
Residential IASLs. Of the eight compounds, four are petroleum -related: benzene,
ethylbenzene, naphthalene, and m,p-xylene; three are solvents: carbon tetrachloride,
chloroform and 1,2-dichloroethane; and one is a solvent stabilizer: 1,4-dioxane. Chloroform
is also known to form as a byproduct of disinfecting water supplies, while 1,2-
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Raleigh, North Carolina
Brownfields Project Number 23076-19-092
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dichloroethane is used in manufacturing PVC pipes. The petroleum compounds were
identified in all samples collected. Of the solvents, carbon tetrachloride was detected in all
samples; chloroform was detected in 15 of 25 samples; and 1,2-dichloroethane was
detected in 19 of 25 samples. 1,4-dioxane was detected in five of the 25 samples. The
concentrations of the petroleum and solvent -related compounds were consistent
throughout the buildings. In weeks leading up to the sampling events, a series of sealants,
cleaners, caulks, adhesives, grouts, cements, paints, and other building materials
containing VOCs had been used, stored, or installed in the buildings, which likely
contributed to these compounds detected in indoor air.
Trichloroethylene, also known as trichloroethene or TCE, is a contaminant of particular
concern due to the potential for adverse health effects in sensitive populations following
short-term exposure. Trichloroethylene was detected above its method detection limit
(MDL) in four of the 25 samples. Three of the samples were located in the eastern portion
of Building A. The fourth sample was collected in the Building C trash room. The maximum
concentration detected was 0.34 ug/m3 (micrograms per cubic meter), which is below the
IASL of 0.42 ug/m3 for TCE.
The outdoor ambient air sample OA showed detections of 21 compounds. Both petroleum
and chlorinated solvent -related compounds were detected. One compound, benzene (0.52
ug/m3), was detected at a concentration above the Residential IASL (0.36 ug/m3). This
suggests that VOCs were in the outdoor/ambient air during the testing but, with the
exception of benzene, not at significant concentrations.
4.2 Soil Gas Sampling Results
Sub -slab soil gas sample results are summarized in Table 4. During the sampling on June
7, 2023, no compounds were detected at concentrations exceeding their Residential SGSL.
TCE was detected in seven of the 25 sub -slab soil gas samples with a maximum
concentration of 1.6 ug/m3, which is approximately 1/9 of the Residential SGSL of 14
ug/m3.
4.3 Risk Evaluation Methodol
The cumulative risk is calculated by entering the maximum concentrations of all
contaminants detected in each established exposure unit (EU) into the DEQ Risk Calculator.
An EU is a defined area of a site represented by a specific set of use(s), receptors,
contaminant concentrations, and exposure pathways.' The DEQ Risk Calculator
determines the cancer risk sum for all carcinogens and the cumulative hazard index for all
non -carcinogens under Residential and Non -Residential (industrial/commercial) exposure
NCDEQ Technical Guidance for Risk -Based Environmental Remediation of Sites. March 2017. Page 40
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Post-Construction/Pre-Occupancy VIMS Report
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Raleigh, North Carolina
Brownfields Project Number 23076-19-092
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scenarios. The BRS allows a maximum cumulative cancer risk for all carcinogens of 1.0E-
4 and a maximum cumulative hazard index (HI) of 1 for all non -carcinogens. The hazard
index is the sum of the hazard quotient (HQ) calculated for each compound detected.
4.3.1 Indoor Air Risk Evaluation and Results
For this assessment, eight EUs (EU-1 through EU-8) were identified in the buildings. Each
EU is isolated and conditioned separately from adjacent and surrounding spaces. The EUs
are depicted in Figure 6 and comprised of the spaces and samples listed in Table 2.
To evaluate risk in each EU, the following data was entered into the Risk Calculator to
produce each output:
1. The highest concentration of each compound detected in indoor air above MDLs
was entered into the Risk Calculator.
*2. These concentrations were then compared to those detected in the corresponding
soil gas sample(s). If a compound was detected at a greater concentration in the
indoor air than in the corresponding soil gas sample(s), thus indicating an indoor
source, then the concentration detected in the soil gas was used in the risk
calculation in lieu of the concentration detected in the indoor air.
3. For compounds not detected in indoor air but with MDLs above Residential IASLs,
if the compound was not detected in the corresponding paired soil gas sample(s),
then the compound was assumed not to be present in indoor air and was excluded
from the risk calculation. If the compound was detected in the corresponding
paired soil gas sample(s), then a concentration equal to the MDL from laboratory
analysis of the indoor air sample was entered into the risk calculation.
*This is a conservative approach because it assumes the entire concentration of a
compound detected in sub -slab soil gas is contributed to the concentration detected
in indoor air and does not account for attenuation provided by the chemical resistant
barrier at the site, which has been sealed, inspected, and smoke -tested to confirm
its integrity and effectiveness. Thus, risk is overestimated.
Risk calculations for each EU are included in Appendix F. A summary of risk assessment
parameters and the cumulative Residential and Non -Residential exposure cancer risk sum
and non -cancer hazard index for each EU is included in Table 5. Further discussion
regarding results from each EU is included below.
Exposure Unit 1, Building A, East Side
In EU-1, 37 compounds were detected in the indoor air. Seven of these compounds -
benzene, carbon tetrachloride, chloroform, 1,2-dichloroethane, 1,4-dioxane, ethylbenzene,
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and naphthalene- were detected at concentrations exceeding their Residential IASL. Each
of these compounds was either not detected or detected at a lower concentration in the sub
slab soil gas than the indoor air. This indicates that an indoor air source of these compounds
is present in EU-1.
Six compounds- benzyl chloride, bromodichloromethane, 1,2-dibromoethane (EDB),
hexachlorobutadiene, 1,1,2,2-tetrachloroethane, and 1,1,2-trichloroethane- had MDLs
above Residential IASLs, but were not detected in soil gas; therefore, they were excluded
from the risk calculation.
Indoor Air Risk Calculations
Exposure Unit
Residential Calculated
Residential Cumulative Non -
Carcinogenic Risk Sum
Carcinogenic Hazard Index
1.4E-05
6.1 E-01
Non -Residential Calculated
Non -Residential Cumulative Non -
Carcinogenic Risk Sum
Carcinogenic Hazard Index
3.1 E-06
1.4E-01
As indicated, the cancer risk sum and cumulative non -cancer hazard index using the
maximum concentrations for the indoor air samples in EU-1 did not exceed the target risk
sum of 1.0E-4 nor the target cumulative non -cancer hazard index of 1 for the Residential or
Non -Residential exposure scenario.
Exposure Unit 2, Building A, West Side
In EU-2, 35 compounds were detected in the indoor air. Six of these compounds- benzene,
carbon tetrachloride, chloroform, 1,2-dichloroethane, ethylbenzene, and naphthalene- were
detected at concentrations exceeding their Residential IASL. None of these compounds
were detected in the sub slab soil gas. This indicates that an indoor air source of these
compounds is present in EU-2.
Six compounds- benzyl chloride, bromodichloromethane, 1,2-dibromoethane (EDB),
hexachlorobutadiene, 1,1,2,2-tetrachloroethane, and 1,1,2-trichloroethane- had MDLs
above Residential IASLs, but were not detected in soil gas; therefore, they were excluded
from the risk calculation.
Indoor Air Risk Calculations
Exposure Unit
Residential Calculated
Residential Cumulative Non -
Carcinogenic Risk Sum
Carcinogenic Hazard Index
1.8E-05
5.2E-01
EU-2
Non -Residential Calculated
Non -Residential Cumulative Non -
Carcinogenic Risk Sum
Carcinogenic Hazard Index
4.1 E-06
1.2E-01
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As indicated, the cancer risk sum and cumulative non -cancer hazard index using the
maximum concentrations for the indoor air samples in EU-2 did not exceed the target risk
sum of 1.0E-4 nor the target cumulative non -cancer hazard index of 1 for the Residential or
Non -Residential exposure scenario.
Exposure Unit 3, Building B, West Side
In EU-3, 34 compounds were detected in the indoor air. Eight of these compounds -
benzene, carbon tetrachloride, chloroform, 1,2-dichloroethane, 1,4-dioxane, ethylbenzene,
naphthalene, and m,p-xylene- were detected at concentrations exceeding their Residential
IASL. Seven of the eight compounds were not detected in the sub slab soil gas samples.
Naphthalene was detected in the sub -slab soil gas at a greater concentration than that
detected in the indoor air. The data indicates that an indoor air source of seven of these
compounds is present in EU-3 and that the naphthalene detected in the indoor air may have
originated from soil gas.
Six compounds- benzyl chloride, bromodichloromethane, 1,2-dibromoethane (EDB),
hexachlorobutadiene, 1,1,2,2-tetrachloroethane, and 1,1,2-tichloroethane- had MDLs
above Residential IASLs, but were not detected in soil gas; therefore, they were excluded
from the risk calculation.
Indoor Air Risk Calculations
Exposure Unit
Residential Calculated
Residential Cumulative Non -
Carcinogenic Risk Sum
Carcinogenic Hazard Index
1.6E-05
5.1 E-01
Non -Residential Calculated
Non -Residential Cumulative Non -
Carcinogenic Risk Sum
Carcinogenic Hazard Index
3.6E-06
1.2E-01
As indicated, the cancer risk sum and cumulative non -cancer hazard index using the
maximum concentrations for the indoor air samples in EU-3 did not exceed the target risk
sum of 1.0E-4 nor the target cumulative non -cancer hazard index of 1 for the Residential or
Non -Residential exposure scenario.
Exposure Unit 4, Building B, Move In Area
In EU-4, 32 compounds were detected in the indoor air. Six of these compounds- benzene,
carbon tetrachloride, 1,2-dichloroethane, 1,4-dioxane, ethylbenzene, and naphthalene -
were detected at concentrations exceeding their Residential IASL. None of these
compounds were detected in the sub slab soil gas. This indicates that an indoor air source
of these compounds is present in EU-4.
46 Mid Atlantic

Post-Construction/Pre-Occupancy VIMS Report
Former Raleigh MGP 2, Phase 1 Redevelopment
Raleigh, North Carolina
Brownfields Project Number 23076-19-092
August 16, 2023
Page 11
Seven compounds- benzyl chloride, bromodichloromethane, chloroform, 1,2-
dibromoethane (EDB), hexachlorobutadiene, 1,1,2,2-tetrachloroethane, and 1,1,2-
trichloroethane- had MDLs above Residential IASLs, but were not detected in soil gas;
therefore, they were excluded from the risk calculation.
Indoor Air Risk Calculations
Exposure Unit
Residential Calculated
Residential Cumulative Non -
Carcinogenic Risk Sum
Carcinogenic Hazard Index
1.1 E-05
3.7E-01
Non -Residential Calculated
Non -Residential Cumulative Non -
Carcinogenic Risk Sum
Carcinogenic Hazard Index
2.6E-06
8.8E-02
As indicated, the cancer risk sum and cumulative non -cancer hazard index for the indoor air
sample in EU-4 did not exceed the target risk sum of 1.0E-4 nor the target cumulative non -
cancer hazard index of 1 for the Residential or Non -Residential exposure scenario.
Exposure Unit 5, Building B, Amenities Area
In EU-5, 32 compounds were detected in the indoor air. Six of these compounds- benzene,
carbon tetrachloride, chloroform, 1,2-dichloroethane, ethylbenzene, and naphthalene- were
detected at concentrations exceeding their Residential IASL. Five of the six compounds
were not detected in the sub slab soil gas samples. Chloroform was detected in the sub -
slab soil gas at a greater concentration than that detected in the indoor air. The data
indicates that an indoor air source of five of these compounds is present in EU-5 and that
the chloroform detected in the indoor air may have originated from soil gas.
Six compounds- benzyl chloride, bromodichloromethane, 1,2-dibromoethane (EDB),
hexachlorobutadiene, 1,1,2,2-tetrachloroethane, and 1,1,2-trichloroethane- had MDLs
above Residential IASLs, but were not detected in soil gas; therefore, they were excluded
from the risk calculation.
Indoor Air Risk Calculations
Exposure Unit
Residential Calculated
Residential Cumulative Non -
Carcinogenic Risk Sum
Carcinogenic Hazard Index
1.4E-05
4.9E-01
Non -Residential Calculated
Non -Residential Cumulative Non-
EU-5
Carcinogenic Risk Sum
Carcinogenic Hazard Index
3.2E-06
1.2E-01
0 Mid Atlantic

Post-Construction/Pre-Occupancy VIMS Report
Former Raleigh MGP 2, Phase 1 Redevelopment
Raleigh, North Carolina
Brownfields Project Number 23076-19-092
August 16, 2023
Page 12
As indicated, the cancer risk sum and cumulative non -cancer hazard index using the
maximum concentrations for the indoor air samples in EU-5 did not exceed the target risk
sum of 1.0E-4 nor the target cumulative non -cancer hazard index of 1 for the Residential or
Non -Residential exposure scenario.
Exposure Unit 6, Building C, Lobby, Stair, Elevator
In EU-6, 26 compounds were detected in the indoor air. Three of these compounds -
benzene, carbon tetrachloride, and ethylbenzene- were detected at concentrations
exceeding their Residential IASL. Each of these compounds was either not detected or
detected at a lower concentration in the sub slab soil gas than the indoor air. This indicates
that an indoor air source of these compounds is present in EU-6.
Nine compounds- benzyl chloride, bromodichloromethane, chloroform, 1,2-dibromoethane
(EDB), 1,2-dichloroethane, hexachlorobutadiene, naphthalene, 1,1,2,2-tetrachloroethane,
and 1,1,2-trichloroethane- had MDLs above Residential IASLs, but were not detected in soil
gas; therefore, they were excluded from the risk calculation.
Indoor Air Risk Calculations
Exposure Unit
Residential Calculated
Residential Cumulative Non -
Carcinogenic Risk Sum
Carcinogenic Hazard Index
3.0E-06
1.9E-01
Non -Residential Calculated
Non -Residential Cumulative Non-
EU-6
Carcinogenic Risk Sum
Carcinogenic Hazard Index
6.9E-07
4.6E-02
As indicated, the cancer risk sum and cumulative non -cancer hazard index using the
maximum concentrations for the indoor air samples in EU-6 did not exceed the target risk
sum of 1.0E-4 nor the target cumulative non -cancer hazard index of 1 for the Residential or
Non -Residential exposure scenario.
Exposure Unit 7, Building C, Trash and Pump Rooms
In EU-7, 32 compounds were detected in the indoor air. Six of these compounds- benzene,
carbon tetrachloride, chloroform, ethylbenzene, naphthalene, and m,p-xylene- were
detected at concentrations exceeding their Residential IASL. None of these compounds
were detected in the sub slab soil gas. This indicates that an indoor air source of these
compounds is present in EU-7.
Seven compounds- benzyl chloride, bromodichloromethane, 1,2-dibromoethane (EDB),
1,2-dichloroethane, hexachlorobutadiene, 1,1,2,2-tetrachloroethane, and 1,1,2-
0 Mid Atlantic

Post-Construction/Pre-Occupancy VIMS Report
Former Raleigh MGP 2, Phase 1 Redevelopment
Raleigh, North Carolina
Brownfields Project Number 23076-19-092
August 16, 2023
Page 13
trichloroethane- had MDLs above Residential IASLs, but were not detected in soil gas;
therefore, they were excluded from the risk calculation.
Indoor Air Risk Calculations
Exposure Unit
Residential Calculated
Residential Cumulative Non -
Carcinogenic Risk Sum
Carcinogenic Hazard Index
8.3E-06
5.7E-01
Non -Residential Calculated
Non -Residential Cumulative Non -
Carcinogenic Risk Sum
Carcinogenic Hazard Index
1.9E-06
1.4E-01
As indicated, the cancer risk sum and cumulative non -cancer hazard index for the indoor air
sample in EU-7 did not exceed the target risk sum of 1.0E-4 nor the target cumulative non -
cancer hazard index of 1 for the Residential or Non -Residential exposure scenario.
Exposure Unit 8, Building C, Support Offices, Storage
In EU-8, 26 compounds were detected in the indoor air. Two of these compounds- benzene
and carbon tetrachloride- were detected at concentrations exceeding their Residential IASL.
Neither of these compounds were detected in the sub slab soil gas. This indicates that an
indoor air source of these compounds is present in EU-8.
Nine compounds- benzyl chloride, bromodichloromethane, chloroform, 1,2-dibromoethane
(EDB), 1,2-dichloroethane, hexachlorobutadiene, naphthalene, 1,1,2,2-tetrachloroethane,
and 1,1,2-trichloroethane- had MDLs above Residential IASLs, but were not detected in soil
gas; therefore, they were excluded from the risk calculation.
Indoor Air Risk Calculations
Exposure Unit
Residential Calculated
Residential Cumulative Non -
Carcinogenic Risk Sum
Carcinogenic Hazard Index
2.9E-06
1.6E-01
Non -Residential Calculated
Non -Residential Cumulative Non -
EU-8
Carcinogenic Risk Sum
Carcinogenic Hazard Index
6.5E-07
3.8E-02
As indicated, the cancer risk sum and cumulative non -cancer hazard index using the
maximum concentrations for the indoor air samples in EU-8 did not exceed the target risk
sum of 1.0E-4 nor the target cumulative non -cancer hazard index of 1 for the Residential or
Non -Residential exposure scenario.
Ift Mid Atlantic

Post-Construction/Pre-Occupancy VIMS Report
Former Raleigh MGP 2, Phase 1 Redevelopment
Raleigh, North Carolina
Brownfields Project Number 23076-19-092
4.3.2 Sub -Slab Soil Gas Risk Evaluation and Results
August 16, 2023
Page 14
Section 5 of the approved VIMS Plan states that if pre -occupancy sub -slab soil gas testing
and subsequent evaluation using the DWM Risk Calculator shows no unacceptable risk,
that the active VIMS (i.e., sub -slab depressurization) will not be activated. Because the
buildings at the site are not underlain by one contiguous foundation, communication of sub -
slab soil gas between the buildings is not likely. Therefore, the site could be separated into
multiple EUs. However, based on the concentrations observed and to provide a
conservative evaluation, site -wide sub -slab soil gas was treated as one EU to provide a
"worst -case" exposure scenario. Additionally, one analyte in sub -slab soil gas samples (1,2-
dibromoethane) had an MDL above its SGSL. For the purposes of risk evaluation, a
concentration of this compound equal to its MDL was assumed. Risk calculations for site -
wide sub -slab soil gas samples are included in Appendix F. The cumulative Residential
and Non -Residential exposure cancer risk sum and non -cancer hazard index for site -wide
sub -slab soil gas are summarized in the following table:
Sub -Slab Soil Gas Risk Calculations
Exposure Unit
Residential Calculated
Residential Cumulative Non -
Carcinogenic Risk Sum
Carcinogenic Hazard Index
7.1 E-06
7.4E-02
Non -Residential Calculated
Non -Residential Cumulative Non -
Site -Wide
Carcino enic Risk Sum
Carcinogenic Hazard Index
5.4E-07
5.9E-03
As indicated, the cancer risk sum and cumulative non -cancer hazard index using the
maximum concentrations for the sub -slab soil gas samples throughout the site did not
exceed the target risk sum of 1.0E-4 nor the target cumulative non -cancer hazard index of
1 for the Residential or Non -Residential exposure scenario.
5.0 QUALITY ASSURANCE
Two duplicate indoor air samples and two duplicate sub -slab soil gas samples were
collected during each sampling event and analyzed for VOCs by EPA Method TO-15 (full
list). Duplicate samples were collected using laboratory -provided Summa canisters and
submitted to the laboratory with a vacuum of at least 5" Hg remaining in the canisters. All
samples were submitted to the laboratory under chain -of -custody control for analysis. The
laboratory analytical reports were reported to level II QA/QC including the reporting of J-
flags (where the laboratory reported concentration is an estimated value greater than the
MDL but lower than the reporting limit). Efforts were made to ensure that soil gas samples
were analyzed with the lowest feasible MDLs under EPA Method TO-15. In general,
duplicate samples did not appear to exhibit high variability in concentrations when
ft Mid Atlantic

Post-Construction/Pre-Occupancy VIMS Report
Former Raleigh MGP 2, Phase 1 Redevelopment
Raleigh, North Carolina
Brownfields Project Number 23076-19-092
August 16, 2023
Page 15
compared to the primary samples. There were no limitations on which constituents were
reported by the laboratory (except for acrolein).
6.0 SUMMARY AND CONCLUSIONS
The overall objective of this assessment was to provide pre -occupancy data from
Buildings A, B, and C of Phase I Redevelopment of the former Raleigh MGP No. 2 site to
evaluate whether vapor intrusion is occurring which could pose unacceptable risk to
building occupants and whether the active VIMS (i.e., sub -slab depressurization) should
be activated. Mid -Atlantic offers the following summary of assessment activities and
results:
• A total of 24 paired indoor air/sub-slab soil gas samples, one unpaired sub -slab
soil gas sample (not paired due to indoor air sample canister damage during return
shipping), one ambient outdoor air sample, two duplicate indoor air samples, and
two duplicate sub -slab soil gas samples were collected from Buildings A, B, and
C;
• Site -wide, a total of eight compounds were detected in various indoor air samples
at concentrations exceeding their respective Residential IASLs. These
compounds were typically detected in indoor air at concentrations greater than
those observed in paired soil gas samples, indicating indoor air source
contributions, including being introduced from building materials associated with
onsite construction;
• There were no compounds detected in the soil gas at concentrations exceeding
SGSLs, which indicates relatively low risk of unacceptable vapor intrusion;
• TCE, a contaminant of particular concern due to the potential for adverse health
effects in sensitive populations following short-term exposure, was detected in four
of the 24 indoor air samples. Three of these samples were collected in EU-1 and
the fourth in EU-7. The highest detected concentration of TCE was 0.34 ug/m3 in
EU-7, which is below the TCE IASL of 0.42 ug/m3. Of note, TCE was not detected
in the corresponding sub -slab soil gas sample from EU-7;
• TCE was detected in seven of the 25 soil gas samples at low concentrations
ranging from 0.84J to 1.6 ug/m3, which is approximately 11 % of the Residential
SGSL of 14 ug/m3;
• Risk evaluations using indoor air and soil gas data were performed on eight EUs
throughout Buildings A, B, and C (EU-1 through EU-8), each isolated and
conditioned separately from adjacent and surrounding spaces;
• Risk evaluations using indoor air and soil gas data from each EU identified no
unacceptable exposure risk under Residential use scenarios in all eight EUs;
I% Mid Atlantic

Post-Construction/Pre-Occupancy VIMS Report
Former Raleigh MGP 2, Phase 1 Redevelopment
Raleigh, North Carolina
Brownfields Project Number 23076-19-092
August 16, 2023
Page 16
• Many construction materials containing VOCs had been used, stored, or installed
in the buildings in the days and weeks leading up to the sampling events and likely
contributed to the concentrations detected in indoor air;
• A risk evaluation using site -wide sub -slab soil gas data was performed to provide
a "worst -case" exposure scenario; and
• The risk evaluation using site -wide sub -slab soil gas data identified no
unacceptable exposure risk under a Residential use scenario.
Based on the results of this assessment, Mid -Atlantic concludes the following:
• Occupancy of Buildings A, B, and C for residential use does not pose an
unacceptable exposure risk;
• The active VIMS at the site does not need to be activated; and
• A follow up sub -slab soil gas sampling event should be conducted within six
months of this initial event to confirm the acceptable risk results and that operation
of the active VIMS is not necessary.
U Mid Atlantic

FIGURES
ft Mid Atlantic

a
REFERENCES:
1. RALEIGH WEST, NC DIGITAL RASTER GRAPHICS,
USGS. SCANNED FROM 1:24,000-SCALE WAKE, NC
TOPOGRAPHIC MAPS, PUBLISHED 2019, USGS. SCALE: 1:9,000
2. INSET MAP DIGITAL DATA FROM 2002 NATIONAL TRANSPORTATION ATLAS, Feet
BUREAU OF TRANSPORTATION STATISTICS, WASHINGTON, D.C. 6OO 1,ZOO
3. PROPERTY BOUNDARY DATA FROM WAKE COUNTY GIS.
DRAWN DATE:
TOPOGRAPHIC SITE MAP BY: GCH AUGUST2023
FORMER RALEIGH MGP NO. 2 DRAFT JOB NO:
Mid Atlantic 600 WEST CABARRUS STREET CHECK: OOOR3746.00
Engineering & Environmental Solutions ENG. GIS NO:
RALEIGH, NORTH CAROLINA
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TABLES
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r
TABLE 1
SUB -SLAB DEPRESSURIZATION INFLUENCE RESULTS
FORMER RALEIGH MGP NO. 2
PHASEIREDEVELOPMENT
RALEIGH, NORTH CAROLINA
MID -ATLANTIC JOB NO. R3746.00
Monitoring Point
Vacuum Reading (pascals, pa)
MP-1
-448.1
MP-2
-664.3
MP-3
-685.5
MP-5
-800.6
MP-6
-803.7
MP-7
-786.2
MP-10
-31.5
MP-11
-22.3
MP-12
-88.7
MP-13
-129.5
MP-14
-78.6
MP-15
-96.6
MP-16
-203.7
MP-17
-233.6
MP-18
-217.3
MP-19
-151.2
M P-20
-211.5

TABLE 2
MONITORING POINT AND INDOOR AIR SAMPLE SUMMARY
FORMER RALEIGH MGP NO. 2
PHASEIREDEVELOPMENT
RALEIGH, NORTH CAROLINA
MID -ATLANTIC JOB NO. R3746.00
Description/Use
Indoor Air Samples
Sub -Slab Monitoring Points
Building A, east side, commercial
IA-1, IA-2, IA-3, IA-4
MP-1, MP-1 DUP, MP-2, MP-3,
M P-4
Building A, west side, commercial
IA-5, IA-6, IA-7, IA-7 DUP,
MP-5, MP-6, MP-7, MP-8, MP-9
IA-8,IA-9
Building B, west side, commercial
IA-10, IA-11, IA-12, IA-13,
MP-10, MP-11, MP-12, MP-13,
IA-14
MP-13 DUP, MP-14
Building B, north end, move -in
IA-15
MP-15
Building B, northeast side, amenities, office
IA-16, , , IA-17IA-18IA-19
MP-16, MP-17, MP-18, MP-19,
MP-20
Building C, east end, lobby, stair, elevator
IA-21, IA-22
MP-21, MP-22
Building C, west end, trash
IA-23
MP-23
Building C, north end, maintenance office
IA-24
MP-24
Building C, north end, storage
IA-25, IA-25 DUP
MP-25

TABLE 3
CHEMICAL CONSTITUENTS ANALYZED IN INDOOR AIR
FORMER RALEIGH MGP NO. 2
PHASEIREDEVELOPMENT
RALEIGH, NORTH CAROLINA
MID -ATLANTIC JOB NO. R3746.00
EU1
EU2
EU3
Sample ID
P
IA-1
IA-2
IA-3
ll
Greatest
Concentration
IA-5
IA-6
IA-7
IA-7 DUP
IA-8
IA-9
Greatest
Concentration
IA-10
IA-11
IA-12
IA-13
IA-14
Greatest
Concentration
NCDEQ DWM
Residential Indoor Air
Screening Levels
January 2023 (ug/m')
NCDEQ DWM
Non-Residental Indoor Air
Screening Levels
January 2023 (ug/m')
Sampling Date
6/4/2023
6/4/2023
6/4/2023
6/4/2023
6/4/2023
6/4/2023
6/4/2023
6/4/2023
6/4/2023
6/4/2023
11 6/4/2023
6/4/2023
6/4/2023
6/4/2023
6/4/2023
Acetone
130
130
120
51
130
290 E
290 E
290 E
290 E
120 E
260 E
290
340 E
330 E
330 E
330 E
330 E
340
HE
NE
Benzene
0.74
0.76
0.69
0.63
0.76
0.78
0.77
0.76
0.69
0.74
0.49
0.78
0.76
0.78
0.74
0.76
0.78
0.78
0.36
1.6
Benzyl Chloride-
<0.16
<0.16
<0.16
<0.16
0.16
<0.16
<0.16
<0.16
<0.16
<0.16
<0.16
0.16
<0.16
<0.16
<0.16
<0.16
<0.16
0.16
0.057
0.25
Bromodichloromethene'
<0.16
<0.16
<0.16
<0.16
0.16
<0.16
<0.16
<0.16
<0.16
<0.16
<0.16
0.16
<0.16
<0.16
<0.16
<0.16
<0.16
0.16
0.076
0.33
Bromoform
<0.25
<0.25
<0.25
<0.25
NO
<0.25
<0.25
<0.25
<0.24
<0.25
<0.25
NO
<0.25
<0.24
<0.25
<0.25
<0.25
ND
2.6
11
Bromomethane
<0.090
0.101
<0.090
<0.090
0.10
<0.090
<0.090
0.092J
<0.090
<0.090
<0.090
0.092
<0.090
<0.090
<0.090
<0.090
<0.090
NO
1.0
4.4
1,3-Butadiene
<0.065
<0.065
<0.065
<0.065
NO
<0.065
<0.065
<0.065
<0.065
<0.065
<0.065
NO
<0.065
<0.065
<0.065
<0.065
<0.065
NO
0.094
0.41
2-Butanone (MEK)
60
55
55
7.0 L-05
60
53
48
47
34
12 L-05
29
53
47
39
42
32 L-05
40 L-05
47
1000
4400
Carbon Disulfide
1.5
1.5
1.8
0.111
1.8
2.8
2.8
2.9
0.75J
0.57J
0.651
2.9
1.2
1.2
1.1
1.2
1.11
1.2
150
610
Carbon Tetrachloride
0.49
0.56
0.50
0.47
0.56
0.53
0.53
0.50
0.57
0.48
0.49
0.57
0.52
0.50
0.47
0.49
0.51
0.52
0.47
2.0
Chlorobenzene
<0.11
<0.11
<0.11
<0.11
NO
<0.11
<0.11
<0.11
<0.11
<0.11
<0.11
NO
<0.11
<0.11
<0.11
<0.11
<0.11
NO
10
44
Chloroethane
<0.082
0.14
0.11
<0.082
0.14
<0.082
<0.082
0.085 J
<0.081
<0.082
<0.082
0.085
0.42
0.45
0.44
0.51
0.42
0.51
830
3500
Chloroform
0.17
0.20
0.17
<0.16
0.20
0.51
0.29
0.32
0.19
0.17 J
<0.16
0.51
0.24
0.27
0.25
0.26
0.24
0.27
0.12
0.53
Chloromethane
1.2
1.4
1.3
1.2
1.4
1.2
1.2
1.3
1.3
1.3
1.2
1.3
1.1
1.1
1.2
1.2
1.2
1.2
19
79
Cyclohexane
0.34
0.44
0.37
1.3
1.3
0.51
1.3
0.50
0.26
1.1
0.22
1.3
1.2
1.2
1.2
1.2
1.2
1.2
1300
5300
Dibromochloromethane
-0.20
-0.20
-0.20
-0.20
NO
-0.20
-0.20
-0.20
-0.20
<0.20
<0.20
NO
-0.20
-0.20
-0.20
-0.20
<0.20
NO
HE
HE
1,2-Dibromoethane(EDB)*
<0.16
<0.16
<0.16
<0.16
0.16
<0.16
<0.16
<0.16
<0.16
<0.16
<0.16
0.16
<0.16
<0.16
<0.16
<0.16
<0.16
0.16
0.0047
0.02
1,2-Dichlorobenzene
-0.12
-0.12
-0.12
-0.12
NO
-0.12
-0.12
-0.12
-0.12
-0.12
-0.12
NO
-0.12
<0.12
<0.12
<0.12
<0.12
NO
42
180
1,3-Dichlorobenzene
<0.12
<0.12
<0.12
<0.12
NO
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
NO
<0.12
<0.12
<0.12
<0.12
<0.12
ND
NE
NE
1,4-Dichlorob---us
<0.14
<0.14
<0.14
<0.14
ND
<0.14
<0.14
<0.14
<0.14
<0.14
-0.14
ND
<0.14
<0.14
<0.14
<0.14
-0.14
ND
0.26
1.1
Dlchlorodi uoromelhane Freon
121
27
27
2.6
2.6
2.7
2.7
2.7
2.8
3.0
2.6
2.6
3.0
2.8
2.7
2.8
2.8
2.6
2.8
21
88
1,1-Dichlomethane
<0.12
<0.12
<0.12
<0.12
ND
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
ND
<0.12
<0.12
<0.12
<0.12
<0.12
ND
1.8
7.7
1,2-Dichlomethane
0.19
0.19
0.18
0.17
0.19
0.29
0.31
0.29
0.18
0.24
0.16
0.31
0.24
0.28
0.24
0.28
0.27
0.27
0.11
0.47
1,1-Dichloroelhylene
<0.11
<0.11
<0.11
<0.11
ND
<0.11
<0.11
<0.11
<0.11
<0.11
<0.11
ND
<0.11
<0.11
<0.11
<0.11
<0.11
ND
42
180
is-1,2-Dichloroelhylene
<0.10
<0.10
<0.10
<0.10
NO
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
NO
<0.10
<0.10
<0.10
<0.10
<0.10
NO
8.3
35
trans-1,2-Dichloroelhylene
<0.11
<0.11
<0.11
<0.11
ND
<0.11
<0.11
<0.11
<0.11
<0.11
<0.11
ND
<0.11
<0.11
<0.11
<0.11
<0.11
ND
8.3
35
1,2-Dichloropropane
0.097J
<0.087
<0.087
<0.087
0.097
0.17
0.16
0.17
0.111
0.093J
0.101
0.17
0.29
0.30
0.29
0.30
0.27
0.30
0.76
3.3
cis-1,3-Dichloropropene
<0.082
<0.082
<0.082
<0.082
ND
<0.082
<0.082
<0.082
<0.082
<0.082
<0.082
ND
<0.082
<0.082
<0.082
<0.082
<0.082
ND
HE
HE
trans-1,3-Dichloropropene
<0.081
<0.081
<0.081
<0.081
NO
<0.081
<0.081
<0.081
<0.081
<0.081
<0.081
NO
<0.081
<0.081
<0.081
<0.081
<0.081
NO
HE
HE
1,2-Dichloro-1,1,2,2-
tetrafluoroethane Freon 114'
<0.24
<0.24
<0.24
<0.24
ND
<0.24
<0.24
<0.24
<0.24
<0.24
<0.24
ND
<0.24
<0.24
<0.24
<0.24
<0.24
ND
NE
HE
1,4-Dioxane
0.69 J
0.70 J
0.86 J
<0.10
0.88
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
ND
1.3
<0.10
<0.10
<0,10
<0,10
1.3
0.56
2.5
Ethanol
61
59
59
44
61
83 E
82 E
79 E
37
87 E
32
87
67
68
66
68
68
68
HE
HE
Ethyl Acetate
0.911
1.7
1.0 J
1.2 J
1.7
2.3
2.2
1.7
0.88 J
2.2
0.94 J
2.3
2.0
2.3
2.0
2.3
2.0
2.3
15
61
Ethylbenzene
2.4
2.5
2.5
0.63
2.5
4.0
4.1
4.1
2.4
1.9
2.0
4.1
5.4
5.0
5.2
5.3
5.4
5.4
1.1
4.9
4-Ethyltoluene
0.27
0.28
0.23
<0.11
0.28
0.36
0.44
0.43
0.22
0.25
0.17
0.44
0.49
0.46
0.50
0.49
0.40
0.50
NE
HE
Heptane
2.4
2.5
2.3
1.1
2.5
26
27
26
30
4.9
26
30
6.2
6.0
5.9
6.2
6.0
6.2
83
350
Hexachlorobutadiene'
<0.31
<0.31
<0.31
<0.31
0.31
<0.31
<0.31
<0.31
0.31
<0.31
0.31
0.31
<0.31
<0.31
<0.31
<0.31
<0.31
0.31
0.13
0.56
Hexane
1.6 J
2.0 J
2.0 J
<0.64
2.0
2.1 J
1.6 J
1.8 J
0.80 J
0.78 J
<0.64
2.1
8.7
9.0
8.1
6.3
5.2
9.0
150
610
2-Hexanone(MBK)
0.85
0.62
0.48J
0.61
0.85
1.1
0.73
0.63
0.29J
0.78
0.20J
1.1
0.63
0.66
0.75
0.77
0.75
0.77
6.3
26
Isopmpanol
8.9
8.9
8.7
4.7
8.9
12
12
11
5.3
10.0
4.5
12
6.6
7.1
6.2
6.5
6.6
7.1
42
180
Methyl tert-Butyl Ether (Ml
<0.097
<0.097
<0.097
<0.097
NO
<0.097
<0.097
<0.097
<0.097
<0.097
<0.097
NO
<0.097
<0.097
<0.097
<0.097
<0.097
NO
11
47
Methylene Chloride
<0.56
<0.56
<0.56
<0.56
NO
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
NO
<0.56
<0.56
<0.56
<0.56
<0.56
NO
100
530
4-Methyl-2-pentanone (MIBK)
0.76
0.81
0.68
0.98
0.98
<0.076
<0.076
<0.076
<0.076
1.6
<0.076
1.6
1.3
1.3
1.3
1.4
1.4
1.4
630
2600
Naphthalene
0.36
V-08 1
0.34
V-08 1
0.23
V-08 1
0.15 J
LZ-01 -0 V46
0 36
OA4
V-08 1
0.61
V-08 1
OAS
V-08 1
0.23
V46 1
0.17 J
L-0 V-06Z-01
0.18 J
V-06 1
0 67
OA2
V-08 1
0.55
V-06 1
OAS
V-08 1
OAO
L-0 V-0 Z41
0.30
L-65V-66Z-61
0.55
0.083
0.36
Propene
<0.53
1.7 J
1.6 J
0.86 J
1.7
2.2 J
2.1 J
<0.53
<0.53
1.2 J
1.11
2.2
2.3 J
2.1 J
<0.53
2.3 J
<0.53
2.3
630
2600
Styrene
2.0
2.1
2.1
0.55
2.1
5.4
5.6
5.8
5.9
5.7
5.1
5.9
4.0
3.7
3.7
3.9
3.8
4.0
210
880
1,1,2,2-Tetrachloroethane'
<0.13
<0.13
<0.13
<0.13
0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
0.13
<0.13
<0.13
<0.13
<0.13
<0.13
0.13
0.048
0.21
Tetrechloroethylene
0.21 J
0.24
0.22 J
<0.18
0.24
0.30
0.30
0.27
<0.18
<0.18
-0.18
0.30
<0.18
1.0
-0.18
-0.18
-0.18
1.0
8.3
35
Tetrahydmfumn
97
92
90
3.7
97
74
74
79
100
8.0
87
100
100
99
97
100
100
100
420
1800
Toluene
20
19
19
4.7
20
63
64
62
56
23
48
64
120
110
110
120
120
120
1000
4400
1,2,4-Trichlorobenzene
<0.24
<0.24
<0.24
<0.24
ND
<0.24
<0.24
<0.24
<0.24
<0.24
<0.24
ND
<0.24
<0.24
<0.24
<0.24
<0.24
ND
0.42
1.8
1,1,1-Trichloroethane
<0.15
<0.15
<0.15
<0.15
NO
<0.15
<0.15
<0.15
<0.15
<0.15
<0.15
NO
<0.15
<0.15
<0.15
<0.15
<0.15
NO
1000
4400
1,1,2-Trichloroethane'
<0.13
<0.13
<0.13
<0.13
0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
0.13
<0.13
<0.13
<0.13
<0.13
<0.13
0.13
0.042
0.18
Trichloroethylene
0.29
0.15 J
0.18 J
<0.13
0.29
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
NO
<0.13
<0.13
<0.13
<0.13
<0.13
NO
0.42
1.8
Trichloro uoromet ane r on
11)
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.4
1.2
1.2
1.4
1.2
1.2
1.2
1.2
1.2
1.2
NE
HE
1,1,2-Tdchloro-1,2,2-
tdfluoroethane Freon 113'
0.50 J
0.53 J
0.44 J
0.48 J
0.53
0.48 J
0.511
0.511
0.59 J
0.50 J
0.48 J
0.59
0.49 J
0.47 J
0.49 J
0.48 J
0.49 J
0.49
1000
4400
1,2,4-Tdmethylbenzene
1.6
1.7
1.5
0.46
1.7
2.7
2.9
2.8
1.4
1.4
1.2
2.9
3.2
3.0
3.0
3.1
3.1
3.2
13
53
1,3,5-Trimethylbenzene
0.40
0.39
0.35
0.111
0.40
0.66
0.69
0.66
0.32
0.37
0.27
0.69
0.80
0.71
0.78
0.73
0.73
0.80
13
53
Vinyl Acetate
6.0
<0.66
<0.66
2.6
6.0
7.0
6.7
<0.66
<0.66
3.1
<0.66
7.0
<0.66
<0.66
<0.66
<0.66
<0.66
NO
42
180
Vinyl Chloride
<0.080
<0.080
<0.080
<0.080
ND
<0.080
<0.080
<0.080
<0.080
<0.080
<0.080
ND
<0.080
<0.080
<0.080
<0.080
<0.080
ND
0.17
2.8
m&p-Xylene
9.7
9.8
10
2.3
10
16
16
16
9.4
7.2
8.0
16
22
20
20
21
21
22
21
88
o-Xylene
3.8
3.8
3.9
1.0
3.9
6.0
6.0
6.0
3.5
2.5
2.9
6.0
7.4
6.9
7.0
7.3
7.2
7.4
21
88
Nate.:
Concentration units: pg/m'
NCDEQ DWM = North Carolina Department of Environmental Quality Division of Waste Management
J = Estimated Concentration
E = Reported result is estimated. Value reported over verified calibration range.
HE = Not Established
-= Compound was not detected, but had a lab method detection limit (MDL) over the Residential Indoor Air Screening Level. For the purpose of risk evaluation, concentrations of this compound equal to its MDL were assumed.
L-05 = Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this compound is likely to be biased on the high side.
V-06 = Continuing calibration verification (CCV) did not meet method specifications and was biased on the high side for this compound.
Z-01 = Calibrations relative standard deviation (RSD) for this compound is>30 % but <40%.
Bolded concentrations exceed the Residential Indoor Air Screening Level
Shaded concentrations exceed the Non -Residential Indoor Air Screening Level
<0.34 = Not detected above the lab method detection limit MDL

TABLE 3
CHEMICAL CONSTITUENTS ANALYZED IN INDOOR AIR
FORMER RALEIGH MGP NO. 2
PHASEIREDEVELOPMENT
RALEIGH, NORTH CAROLINA
MID -ATLANTIC JOB NO. R3746.00
Sample ID
EU 4
EU 5
EU 6
EU 7
EU
8
CA
NCDEQ DWM
Residential Indoor Air
Screening Levels
January 2023 (ug/m')
NCDEQ DWM
Non -Residential Indoor Air
Screening Levels
January 2023 (ug/m')
IA-15
IA-16
IA-17
IA-18
IA-19
Greatest
Concentration
IA-21
IA-22
Greatest
Concentration
IA-23
IA-24
IA-25
IA-25 DUP
Greatest
Concentration
Sampling Date
6/4/2023
1 6/4/2023
6/4/2023
6/4/2023
6/4/2023
6/4/2023
6/4/2023
11 6/4/2023
6/4/2023
6/4/2023
6/4/2023
6/4/2023
Acetone
130
50
47
89
79
89
41
39
41
210
22
33
32
33
14
NE
NE
Benzene
0.85
1.7
1.7
0.79
0.70
1.7
0.66
0.59
0.66
0.47
0.64
0.55
0.47
0.64
0.52
0.36
1.6
Benzyl Chloride'
<0.16
<0.16
<0.16
<0.16
<0.16
0.16
<0.16
<0.16
0.16
<0.16
<0.16
<0.16
<0.16
0.16
<0.16
0.057
0.25
Bromodichloromethane'
<0.16
<0.16
<0.16
<0.16
<0.16
0.16
<0.16
<0.16
0.16
<0.16
<0.16
<0.16
<0.16
0.16
<0.16
0.076
0.33
Bromoform
-0.25
<0.25
<0.25
<0.25
<0.25
NO
<0.25
<0.25
NO
<0.25
<0.25
<0.25
<0.25
NO
<0.25
2.6
11
Bromomethane
<0.090
<0.090
<0.090
<0.090
<0.090
NO
<0.090
<0.090
NO
0.36
<0.090
<0.090
<0.090
NO
<0.090
1.0
4.4
1,3.Butadiene
<0.065
<0.065
<0.065
<0.065
<0.065
NO
<0.065
<0.065
NO
<0.065
<0.065
<0.065
<0.065
NO
<0.065
0.094
0.41
2-Butanone (MEK)
28 L-05
9.7 L-05
9.6 L-05
160
93
160
19 L-05
23 L-05
23
22 L-05
11 L-05
11 L-05
11 L-05
11
2.0 L-05,J
1000
4400
Carbon Disulfide
0.17 J
0.13 J
0.16 J
0.64 J
0.64 J
0.64
0.111
<0.10
0.11
0.101
<0.10
<0.10
<0.10
NO
<0.10
150
610
Carbon Tetrachloride
0.50
0.48
0.-
0.48
0.43
0.-
0.48
0.51
0.51
0.50
0.-
0.50
0.50
0.50
0.47
0.47
2.0
Chlorobenzene
<0.11
<0.11
<0.11
<0.11
<0.11
NO
<0.11
<0.11
NO
<0.11
<0.11
<0.11
<0.11
NO
<0.11
10
44
Chlomethane
0.092
<0.082
<0.082
0.11
0.11
0.11
<0.082
<0.082
NO
<0.082
<0.082
<0.082
<0.082
NO
<0.082
830
3500
Chloroform
<0.16'
<0.16
<0.16
0.17
0.18
0.18
<0.16
<0.16
0.16-
0.16 J
<0.16
<0.16
<0.16
0.16'
<0.16-
0.12
0.53
Chloromethane
1.2
1.2
1.1
1.3
1.2
1.3
1.1
1.2
1.2
1.2
1.1
1.2
1.2
1.2
1.3
19
79
Cyclohexane
1.5
1.7
2.1
2.6
1.9
2.6
0.52
0.79
0.79
4.2
0.098 J
0.12 J
0.14
0.14
<0.073
1300
5300
Dibromochloromethane
<0.20
<0.20
<0.20
<0.20
<0.20
NO
<0.20
<0.20
NO
<0.20
<0.20
<0.20
<0.20
NO
<0.20
NE
NE
1,2.Dibromoethane(EDB)'
<0.16
<0.16
<0.16
<0.16
<0.16
0.16
<0.16
<0.16
0.16
<0.16
<0.16
<0.16
<0.16
0.16
<0.16
0.0047
0.02
1,2.Dichlorobenzene
-0.12
<0.12
-0.12
<0.12
<0.12
ND
<0.12
<0.12
ND
<0.12
<0.12
<0.12
<0.12
ND
<0.12
42
180
1,3-Dichlorobenzene
<0.12
<0.12
<0.12
<0.12
<0.12
ND
<0.12
<0.12
ND
<0.12
<0.12
<0.12
<0.12
ND
<0.12
NE
NE
14-Dichlorobenzene
<0.14
<0.14
<0.14
<0.14
<0.14
ND
<0.14
<0.14
ND
<0.14
<0.14
<0.14
<0.14
ND
<0.14
0.26
1.1
Dlchlonedi uoromelhane Freon
121
26
2.6
2.6
3.1
2.5
3.1
2.6
2.6
2.6
2.5
2.6
2.6
2.8
2.8
2.6
21
88
1,1-Dichlomethane
-0.12
<0.12
<0.12
<0.12
<0.12
ND
<0.12
<0.12
ND
<0.12
<0.12
<0.12
<0.12
ND
<0.12
1.8
7.7
1,2-Dichlomelhane
0.27
0.27
0.27
0.32
0.28
0.32
<0.13
<0.13
0.13'
<0.13'
<0.13
<0.13
<0.13
0.13'
<0.13'
0.11
0.47
1,1-Dichloroethylene
<0.11
<0.11
<0.11
<0.11
<0.11
ND
<0.11
<0.11
ND
<0.11
<0.11
<0.11
<0.11
ND
<0.11
42
180
cis-1,2-Dichloroethylene
-0.10
<0.10
<0.10
<0.10
<0.10
ND
<0.10
<0.10
ND
<0.10
<0.10
<0.10
<0.10
ND
<0.10
8.3
35
trans-1,2-Dichloroelhylene
<0.11
<0.11
<0.11
<0.11
<0.11
ND
<0.11
<0.11
ND
<0.11
<0.11
<0,11
<0.11
ND
<0,11
8.3
35
1,2-Dichloropropane
0.111
<0.087
<0.087
<0.087
<0.087
ND
<0.087
<0.087
ND
0.151
<0.087
<0.087
<0.087
ND
<0.087
0.76
3.3
cis-1,3-Dichloropropene
<0.082
<0.082
<0.082
<0.082
<0.082
ND
<0.082
<0.082
ND
<0.082
<0.082
<0.082
<0.082
ND
<0,082
NE
HE
trans-1,3-Dichloropropene
<0.081
<0.081
<0.081
<0.081
<0.081
ND
<0.081
<0.081
ND
<0.081
<0.081
<0.081
<0.081
ND
<0.081
NE
HE
1,2-Dichloeth.m 2,2-
tetra8uoroethane Freon 114'
<0.24
<0.24
<0.24
<0.24
<0.24
ND
<0.24
<0.24
ND
<0.24
<0.24
<0.24
<0.24
ND
<0.24
NE
HE
1,4-Dioxane
0.67 J
<0.10
<0.10
<0.10
<0.10
ND
<0.10
<0.10
ND
<0.10
<0.10
<0.10
<0.10
ND
<0.10
0.56
2.5
Ethanol
110
100 E
130 E
570 E
640 E
640
21
22
22
240
17
14
15
17
8.9
HE
HE
Ethyl Acetate
0.97 J
1.9
2.0
3.4
3.0
3.4
0.76 J
2.0
2.0
<0,64
0.97 J
<0,64
0.65 J
0.97
<0,64
15
61
Ethylbenzene
3.0
1.3
1.4
4.1
3.2
4.1
1.2
1.9
1.9
7.1
0.28
0.78
0.77
0.78
0.25
1.1
4.9
4-Ethyltoluene
0.20
0.14 J
0.15 J
1 0.50
0.74
0.74
0.19
0.20
0.20
0.17
<0.11
0.15 J
0.16 J
1 0.16
<0.11
NE
HE
Heptsne
5.4
14
20
35
24
35
0.54
0.63
0.63
13
0.27
0.23
0.21
0.27
0.35
83
350
Hexachlorobutadiene'
<0.31
<0.31
<0.31
<0.31
<0.31
0.31
<0.31
<0.31
0.31
<0.31
<0.31
<0.31
<0.31
0.31
<0.31
0.13
0.56
Hexane
5.4
1.9 J
2.0 J
2.2 J
1.7 J
2.2
1.6 J
<0.64
1.6
15
<0.64
<0.64
<0.64
NO
<0.64
150
610
2-Hexanone (MBK)
0.67
0.51 J
0.37 J
0.81
0.79
0.81
0.27 J
0.44 J
0.44
0.85
0.41 J
0.35 J
0.34 J
0.41
0.13 J
6.3
26
Isopropanol
9.0
4.0
4.0
6.3
5.8
6.3
1.2J
1.9J
1.9
21
1.2J
1.4J
1.2J
1.4
0.69J
42
180
Methyl tert-Butyl Ether (MTBE)
<0,097
<0.097
<0.097
<0.097
<0.097
NO
<0.097
<0.097
NO
<0.097
<0.097
<0.097
<0.097
NO
<0.097
11
47
Methylene Chloride
<0.56
-0.56
<0.56
<0.56
<0.56
NO
<0.56
<0.56
NO
<0.56
-0.56
<0.56
<0.56
NO
<0.56
100
530
4-Methyl-2-pentanone (MIBK)
2.3
1.8
2.6
10
9.9
10
0.28
0.37
0.37
5.1
0.23
0.25
0.25
0.25
0.083J
630
2600
Naphthalene
0.39
L4V-06 Z-0t
0.25
L.05 V-06 Z-01
0.31
L4V416 Z-01
0.53
L4V-06 Z-01
0.57
L4V-06 Z-Ot
0.57
<0.14 Z-01
<0.14 Z-01
0.14'
0.27
1_41V-06 Z-01
<0.14 Z-01
<0.14 Z-01
<0.14 Z-01
0.14'
<0.14Z-01'
0.083
0.36
Propene
1.61
1.7J
1.5J
1.81
1.4J
1.8
1.11
1.7J
1.7
1.11
0.87J
0.67J
0.67J
0.87
0.57J
630
2600
Styrene
6.4
1.8
1.9
3.8
3.3
3.8
0.38
0.39
0.39
20
0.98
0.66
0.66
0.98
0.12 J
210
880
1,1,2,2-Tetrachloroethane'
<0.13
<0.13
<0.13
<0.13
<0.13
0.13
<0.13
<0.13
0.13
<0.13
<0.13
<0.13
<0.13
0.13
<0.13
0.048
0.21
Tetrachloroethylene
<0.18
<0.18
<0.18
<0.18
<0.18
NO
<0.18
<0.18
ND
0.211
<0.18
<0.18
<0.18
ND
<0.18
8.3
35
Tetrahydrefuran
170
18
18
48
50
50
39
32
39
200
21
40
41
41
0.73J
420
1800
Toluene
190
50
63
110
80
110
4.4
4.0
4.4
690
4.7
29
29
29
1.3
1000
4400
1,2,4-Trichlorobenzene
<0.24
<0.24
<0.24
<0.24
<0.24
ND
<0.24
<0.24
ND
<0.24
<0.24
<0.24
<0,24
ND
<0.24
0.42
1.8
1,1,1-Tdchloroethane
<0.15
<0.15
<0.15
<0.15
<0.15
NO
<0.15
<0.15
NO
<0.15
<0.15
<0.15
<0.15
NO
<0.15
1000
4400
1,1,2-Tdchloroelhane'
<0.13
<0.13
<0.13
<0.13
<0.13
0.13
<0.13
<0.13
0.13
<0.113
<0.113
<0.13
<0.13
0.13
<0.13
0.042
0.18
Trichloroethylene
<0.13
<0.13
<0.13
<0.13
<0.13
NO
<0.13
<0.13
NO
0.34
<0.13
<0.13
<0.13
NO
<0.13
0.42
1.8
Trichloro uorome a on
11)
1.2
1.2
1.2
1.1
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
NE
HE
1,1,2-Trichloro-1,2,2-
trifluoroethane Freon 113'
0.50 J
0.48 J
0.47 J
0.50 J
0.52 J
0.52
0.44 J
0.46 J
0.46
0.47 J
0.50 J
0.48 J
0.47 J
0.50
0.47 J
1000
4400
1,2,4-Trimethylbenzene
1.3
0.83
0.86
3.1
4.0
4.0
1.2
1.3
1.3
0.88
0.28
0.92
0.96
0.96
0.24
13
53
1,3,5-Trimelhylbenzene
0.28
0.21
0.20
0.96
1.4
1.4
0.30
0.34
0.34
0.23
<0.091
0.25
0.25
0.25
<0.091
13
53
Vinyl Acetate
<0.66
<0.66
<0.66
7.3
<0.66
7.3
<0.66
5.5
5.5
<0.66
3.4
<0.66
<0.66
3.4
<0.66
42
180
Vinyl Chloride
<0.080
<0.080
<0.080
<0.080
<0.080
ND
<0.080
<0.080
ND
<0.080
<0.080
<0.080
<0.080
ND
<0.080
0.17
2.8
m&p-Xylene
13
4.8
5.2
15
12
15
4.4
7.0
7.0
32
0.83
3.0
3.1
3.1
0.87
21
88
o-Xylene
5.0
1.9
2.2
5.2
4.4
5.2
1.4
2.2
2.2
12
0.40
1.3
1.4
1.4
0.29
21
88
Notes:
Concentration units: pg/m'
NCDEQ DWM = North Carolina Department of Environmental Quality Division of Waste Management
J = Estimated Concentration
E = Reported result is estimated. Value reported over verified calibration range.
HE = Not Established
-= Compound was not detected, but had a lab method detection limit (MDL) over the Residential Indoor Air Screening Level. For the purpose of risk evaluation, concentrations of this compound equal to its MDL were assumed.
L-05 = Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this compound is likely to be biased on the high side.
V-06 = Continuing calibration verification (CCV) did not meet method specifications and was biased on the high side for this compound.
Z-01 = Calibrations relative standard deviation (RSD) for this compound is>30 % but <40%.
Bolded concentrations exceed the Residential Indoor Air Screening Level
Shaded concentrations exceed the Non -Residential Indoor Air Screening Level
<0.34 = Not detected above the lab method detection limit MDL

TABLE 4
CHEMICAL CONSTITUENTS ANALYZED IN SOIL GAS
FORMER RALEIGH MGP NO. 2
PHASEIREDEVELOPMENT
RALEIGH, NORTH CAROLINA
MID -ATLANTIC JOB NO. R3746.00
Sample ID
EU 1
EU 2
EU
3
NCDEQ DWM
Residential
Soil Gas
Screening
Levels
January 2023
(Ng/ms)
NCDEQ DWM
Non -Residential
Soil Gas
Screening
Levels
January 2023
(pg/ms)
MP-1
MP-1 DUP
MP-2
MP-3
MP-4
MP-5
MP-6
MP-7
MP-8
MP-9
MP-10
MP-11
MP-12
MP-13
MP-13
DUP
MP-14
Sampling Date
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
Acetone
25 V-06
33 V-06
21 V-06
44 V-06
23 V-06
35 V-06
13 V-06, J
16 V-06, J
<11
32 V-06
<11
19 V-06, J
21 V-06
<11
30 V-06
18 V-06, J
NE
NE
Benzene
0.73
0.74
<0.48
<0.48
<0.48
<0.48
<0.48
<0.48
<0.48
<0.48
<0.48
<0.48
<0.48
<0.48
<0.48
<0.48
12
160
Benzyl Chloride
<0.91
<0.91
<0.91
<0.91
<0.91
<0.91
<0.91
<0.91
<0.91
<0.91
<0.91
<0.91
<0.91
<0.91
<0.91
<0.91
1.9
25
Bromodichloromethane
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
2.5
33
Bromoform
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
85
1100
Bromomethane
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
35
440
1,3-Butadiene
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
3.1
41
2-Butanone (MEK)
<6.3
<6.3
<6.3
8.7 J
9.6 J
7.0 J
<6.3
<6.3
<6.3
9.8 J
<6.3
7.0 J
<6.3
<6.3
<6.3
<6.3
35000
440000
Carbon Disulfide
<0.58
<0.58
0.62 J
1.4 J
1.0 J
<0.58
1.1 J
0.80 J
1.8 J
1.2 J
0.77 J
0.71 J
0.73 J
1.1 J
1.1 J
0.88 J
4900
61000
Carbon Tetrachloride
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
16
200
Chlorobenzene
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
350
4400
Chloroethane
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
28000
350000
Chloroform
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
4.1
53
Chloromethane
1.5
1.3
0.45 J
0.33 J
0.37 J
0.40 J
<0.33
<0.33
<0.33
1.0
<0.33
0.51 J
1.4
0.76 J
0.80 J
0.45 J
630
7900
Cyclohexane
<0.42
<0.42
<0.42
<0.42
<0.42
2.0
<0.42
<0.42
<0.42
<0.42
<0.42
<0.42
<0.42
<0.42
<0.42
<0.42
42000
530000
Dibromochloromethane
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
NE
NE
1,2-Dibromoethane (EDB)*
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
0.16
2.0
1,2-Dichlorobenzene
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
1400
18000
1,3-Dichlorobenzene
<0.67
<0.67
<0.67
<0.67
<0.67
1.3
<0.67
<0.67
<0.67
<0.67
<0.67
<0.67
<0.67
<0.67
<0.67
<0.67
NE
NE
1,4-Dichlorobenzene
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
8.5
110
Dichlorodifluoromethane (Freon
12
1.8
1.6
1.9
1.6
1.9
2.0
1.9
1.8
1.9
1.7
2.0
2.1
2.0
1.7
2.0
1.9
700
8800
1,1-Dichloroethane
<0.71
<0.71
<0.71
<0.71
<0.71
<0.71
0.71 J
<0.71
<0,71
<0.71
<0.71
<0.71
<0.71
<0.71
<0.71
<0.71
58
770
1,2-Dichloroethane
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
3.6
47
1,1-Dichloroethylene
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
1400
18000
cis-1,2-Dichloroethylene
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
280
3500
trans-1,2-Dichloroethylene
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
280
3500
1,2-Dichloropropane
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
1.2
1.3
<0.50
25
330
cis-1,3-Dichloropropene
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
NE
NE
trans-1,3-Dichloropropene
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
NE
NE
1,2-Dichloro-1,1,2,2-
tetrafluoroethane Freon 114
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
NE
NE
1,4-Dioxane
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
19
250
Ethanol
25
37
30
37
31
69
13 J
32
17
31
23
42
55
82
34
55
NE
NE
Ethyl Acetate
<3.F
<3.6
<3.6
<3.6
<3.6
3.8 J
<3.6
<3.6
<3.6
<3.6
<3.6
<3.6
<3.6
<3.6
<3.6
<3.6
490
6100
Ethylbenzene
0.96
1.1
<0.51
<0.51
<0.51
<0.51
<0.51
<0.51
<0.51
<0.51
<0.51
<0.51
<0.51
<0.51
<0.51
<0.51
37
490
4-Ethyltoluene
<0 F
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
NE
NE
Heptane
0.79 J
0.89
0.52 J
0.54 J
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
2800
35000
Hexachlorobutadiene
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
4.3
56
Hexane
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
4900
61000
2-Hexanone (MBK)
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
0.46 V-06, J
<0.41
<0.41
<0.41
<0.41
0.46 V-06,
<0.41
210
2600
Isopropanol
<3.4
4.5 J
<3.4
13 J
3.9 J
<3.4
<3.4
<3.4
<3.4
<3.4
4.2 J
101
11 J
<3.4
<3.4
<3.4
1400
18000
Methyl tert-Butyl Ether (MTBE)
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
360
4700
Methylene Chloride
<3.2
<3.2
<3.2
<3.2
<3.2
<3.2
<3.2
<3.2
<3.2
<3.2
<3.2
<3.2
<3.2
<3.2
<3.2
<3.2
3400
53000
4-Methyl-2-pentanone (MIBK)
<0.44
<0.44
<0.44
<0.44
<0.44
<0.44
<0.44
<0.44
<0.44
<0.44
<0.44
<0.44
<0.44
<0.44
<0.44
<0.44
21000
260000
Naphthalene
-0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
1.1
2.8
36
Propene
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
21000
260000
Styrene
-0.45
<0.45
<0.45
<0.45
<0.45
<0.45
<0.45
<0.45
<0.45
<0.45
<0.45
<0.45
<0.45
<0.45
<0.45
<0.45
7000
88000
1,1,2,2-Tetrachloroethane
0.74
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
1.6
21
Tetrachloroethylene
<1.0
<1.0
3.7
<1.0
<1.0
1.7
2.1
1.5
5.1
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
280
3500
Tetrahydrofuran
5.1 J
7.5
9.2
15
9.0
10
4.9 J
5.3 J
5.4 J
7.8
3.1 J
6.0
4.2 J
4.3 J
2.4 J
2.2 J
14000
180000
Toluene
12
15
7.9
11
7.8
7.1
3.5
3.9
7.0
8.0
3.2
8.3
3.6
4.1
3.0
4.5
35000
440000
1,2,4-Trichlorobenzene
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1
<1.4
<1.4
<1.4
<1.4
<1.4
14
180
1, 1, 1 -Trichloroethane
-0.86
<0.86
<0.86
<0.86
<0.86
<0.86
1.4
<0.86
<0.86
<0.86
<0.86
<0.86
<0.86
<0.86
<0.86
<0.86
35000
440000
1,1,2-Trichloroethane
0.77
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
1.4
18
Trichloroethylene
-0.72
<0.72
1.4
<0.72
<0.72
1.5
1.1
1.1
0.95 J
<0.72
<0.72
<0.72
<0.72
<0.72
<0.72
<0.72
14
180
Trichlorofluoromethane (Freon
11
1.5 J
1.5 J
12
6.6
1.4 J
9.1
130
23
45
23
2.2 J
2.0 J
3.3 J
87
66
11
NE
NE
1,1,2-Trichloro-1,2,2-
trifluoroethane Freon 113
<,
<1.7
<1.7
<1.7
<1.7
<1.7
<1.7
<1.7
<1.7
<1.7
<1.7
<1.7
<1.7
<1.7
<1.7
<1.7
35000
440000
1,2,4-Trimethylbenzene
0.88 J
1.0
0.85 J
1.2
1.6
1.5
0.55 J
1.1
2.2
1.4
0.57 J
0.71 J
0.69 J
0.75 J
0.73 J
0.67 J
420
5300
1,3,5-Trimethylbenzene
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
420
5300
Vinyl Acetate
<3.8
<3.8
<3.8
<3.8
<3.8
<3.8
<3.8
<3.8
<3.8
<3.8
<3.8
<3.8
<3.8
<3.8
<3.8
<3.8
1400
18000
Vinyl Chloride
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
I <0.46
<0.46
<0.46
<0.46
<0.46
5.6
280
m&p-Xylene
2.8
3.5
2.2
1.8
<0.97
1.1 J
<0.97
<0.97
<0.97
<0.97
<0.97
<0.97
<0.97
<0.97
<0.97
<0.97
700
8800
o-Xylene
0.85 J
0.96
0.63 J
0.56 J
<0.44
0.50 J
<0.44
<0.44
<0.44
<0.44
<0.44
<0.44
<0.44
I <0.44
<0.44
<0.44
700
8800
Notes:
Concentration units: pg/m3
* = Compound was not detected, but had a lab method detection limit over the Residential Sub -Slab Screening Level. For the purpose of risk evaluation, concentrations of this compound equal to its MDL were assumed.
J = Estimated Concentration
NE = Not Established
V-06 = Continuing calibration verification (CCV) did not meet method specifications and was biased on the high side for this compound.
Bolded concentrations exceed the Residential Sub -Slab Soil Gas Level
Shaded concentrations exceed the Non -Residential Sub -Slab Soil Gas Screening Level
<0.34 = Not detected above the lab method detection limit

TABLE 4
CHEMICAL CONSTITUENTS ANALYZED IN SOIL GAS
FORMER RALEIGH MGP NO. 2
PHASEIREDEVELOPMENT
RALEIGH, NORTH CAROLINA
MID -ATLANTIC JOB NO. R3746.00
EU 4
EU 5
EU
6
EU 7
EU
8
NCDEQ DWM
Residential
Soil Gas
Screening Levels
January 2023
(pg/m3)
NCDEQ DWM
Non -Residential
Soil Gas
Screening Levels
January 2023
(pg/m3)
Sample ID
MP-15
MP-16
MP-17
MP-18
MP-19
MP-20
MP-21
MP-22
MP-23
MP-24
MP-25
Sampling Date
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
6/7/2023
Acetone
<11
110 V-06
48 V-06
44 V-06
37 V-06
17 J
23
30
19
<11
<11
NE
NE
Benzene
<0.48
<0.48
<0.48
<0.48
<0.48
<0.48
<0.48
<0.48
<0.48
<0.48
<0.48
12
160
Benzyl Chloride
<0.91
<0.91
<0.91
<0.91
<0.91
<0.91
<0.91
<0.91
1 <0.91
<0.91
<0.91
1.9
25
Bromodichloromethane
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
<0.94
2.5
33
Bromoform
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
85
1100
Bromomethane
<0.52
<0.52
<0.52
0.90
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
35
440
1,3-Butadiene
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
<0.37
3.1
41
2-Butanone (MEK)
<6.3
33
7.2 J
7.1 J
7.8 J
<6.3
<6.3
<6.3
<6.3
<6.3
<6.3
35000
440000
Carbon Disulfide
1.0 J
0.76 J
1.4 J
4.4 J
4.1 J
0.77 J
<0.58
0.62 J
4.4 J
1.2 J
1.0 J
4900
61000
Carbon Tetrachloride
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
16
200
Chlorobenzene
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
<0.61
350
4400
Chloroethane
<0.47
0.47 J
<0.47
1.8
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
28000
350000
Chloroform
<0.93
<0.93
<0.93
1.8
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
4.1
53
Chloromethane
<0.33
0.79 J
0.80 J
7.2
0.69 J
0.52 J
<0.33
<0.33
0.50 J
<0.33
<0.33
630
7900
Cyclohexane
<0.42
<0.42
<0.42
1.2
<0.42
<0.42
<0.42
0.51 J
<0.42
<0.42
<0.42
42000
530000
Dibromochloromethane
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
NE
NE
1,2-Dibromoethane (EDB)*
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
<0.93
0.16
2.0
1,2-Dichlorobenzene
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
<0.69
1400
18000
1,3-Dichlorobenzene
<0.67
<0.67
<0.67
<0.67
<0.67
<0.67
<0.67
<0.67
<0.67
<0.67
<0.67
NE
NE
1,4-Dichlorobenzene
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
8.5
110
Dichlorodifluoromethane (Freon
12
1.9
1.7
1.8
2.1
1.8
1.6
1.4
1.9
1.9
1.7
2.2
700
8800
1,1-Dichloroethane
<0.71
<0.71
<0.71
<0.71
<0.71
<0.71
<0.71
<0.71
<0.71
<0.71
<0.71
58
770
1,2-Dichloroethane
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
<0.73
3.6
47
1,1-Dichloroethylene
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
1400
18000
cis-1,2-Dichloroethylene
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
<0.58
280
3500
trans-1,2-Dichloroethylene
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
<0.62
280
3500
1,2-Dichloropropane
<0.50
0.96
0.83 J
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
0.55 J
25
330
cis-1,3-Dichloropropene
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
<0.47
NE
NE
trans-1,3-Dichloropropene
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
NE
NE
1,2-Dichloro-1,1,2,2-
tetrafluoroethane Freon 114
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
NE
NE
1,4-Dioxane
<0.60
<0.60
<0.60
0.81 J
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
19
250
Ethanol
33
100
50
69
120
86
38
200
36
31
41
NE
NE
Ethyl Acetate
<3.6
<3.6
<3.6
<3.6
<3.6
<3.6
<3.6
<3.6
<3.6
<3.6
<3.6
490
6100
Ethylbenzene
<0.51
<0.51
<0.51
<0.51
<0.51
<0.51
<0.51
0.64 J
<0.51
<0.51
<0.51
37
490
4-Ethyltoluene
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
<0.60
NE
NE
Heptane
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
0.80 J
<0.52
<0.52
<0.52
2800
35000
Hexachlorobutadiene
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
<1.8
4.3
56
Hexane
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
<3.7
4900
61000
2-Hexanone (MBK)
<0.41
2.5 V-06
0.49 V-06, J
1.2 V-06
0.61 V-06, J
<0.41
<0.41
<0.41
0.92 V-06
<0.41
<0.41
210
2600
Isopropanol
21
<3.4
<3.4
<3.4
14 J
14 J
33
35
23
3.7 J
191
1400
18000
Methyl tert-Butyl Ether (MTBE)
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
<0.56
360
4700
Methylene Chloride
<3.2
<3.2
<3.2
5.0 J
<3.2
<3.2
<3.2
<3.2
<3.2
<3.2
<3.2
3400
53000
4-Methyl-2-pentanone (MIBK)
<0.44
0.75 V-06, J
<0.44
1.0 V-06
<0.44
<0.44
<0.44
<0.44
<0.44
<0.44
<0.44
21000
260000
Naphthalene
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
<0.79
2.8
36
Propene
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
21000
260000
Styrene
<0.45
<0.45
<0.45
<0.45
1.2
<0.45
<0.45
<0.45
<0.45
<0.45
<0.45
7000
88000
1,1,2,2-Tetrachloroethane
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
<0.74
1.6
21
Tetrachloroethylene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
280
3500
Tetrahydrofuran
4.6 J
29
18
25
29
3.1 J
<0.97
2.5 J
<0.97
<0.97
<0.97
14000
180000
Toluene
1.3
7.3
4.5
5.6
6.0
4.0
2.9
5.3
0.93
0.54 J
0.57 J
35000
440000
1,2,4-Trichlorobenzene
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
<1.4
14
180
1,1,1-Trichloroethane
<0.86
<0.86
1.2
<0.86
<0.86
<0.86
<0.86
<0.86
<0.86
<0.86
<0.86
ism 35000
440000
1,1,2-Trichloroethane
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
<0.77
1.4
18
Trichloroethylene
<0.72
<0.72
<0.72
<0.72
<0.72
<0.72
<0.72
<0.72
<0.72
1.6
0.84 J
14
180
Trichlorofluoromethane (Freon
11
14
55
80
10
3.6 J
3.5 J
12
2.7 J
17
2.3 J
9.7
NE
NE
1,1,2-Trichloro-1,2,2-
trifluoroethane Freon 113
<1.7
<1.7
2.1 J
11
<1.7
<1.7
<1.7
<1.7
2.2 J
<1.7
<1.7
35000
440000
1,2,4-Trimethylbenzene
1.2
1.9
1.1
1.2
1.6
1.5
0.71 J
5.3
1.4
1.2
1.4
420
5300
1,3,5-Trimethylbenzene
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
<0.52
420
5300
Vinyl Acetate
<3.8
<3.8
4.2 J
<3.8
<3.8
<3.8
<3.8
<3.8
<3.8
<3.8
<3.8
1400
18000
Vinyl Chloride
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
<0.46
5.6
280
m&p-Xylene
<0.97
1.5 J
<0.97
1.1 J
1.3 J
<0.97
<0.97
2.2 V-06
<0.97
<0.97
<0.97
700
8800
o-Xylene
<0.44
0.71 J
<0.44
<0.44
0.59 J
<0.44
<0.44
0.97 V-06
<0.44
<0.44
<0.44
700
8800
Notes:
Concentration units: pg/m3
*= Compound was not detected, but had a lab method detection limit over the Residential Sub -Slab Screening Level. For the purpose of risk evaluation, concentrations of this compound equal to its MDL were assumed.
J = Estimated Concentration
NE = Not Established
V-06 = Continuing calibration verification (CCV) did not meet method specifications and was biased on the high side for this compound.
Bolded concentrations exceed the Residential Sub -Slab Soil Gas Level
Shaded concentrations exceed the Non -Residential Sub -Slab Soil Gas Screening Level
<0.34 = Not detected above the lab method detection limit

TABLE 5
PRE -OCCUPANCY INDOOR AIR/SOIL GAS TESTING RISK ASSESSMENT SUMMARY
FORMER RALEIGH MGP NO. 2
PHASEIREDEVELOPMENT
RALEIGH, NORTH CAROLINA
MID -ATLANTIC JOB NO. R3746.00
Assessment Parameters
Exposure Unit:
EU-1
EU-2
EU-3
EU-4
EU-5
EU-6
EU-7
EU-8
Commercial,
Commercial,
Commercial,
Move -in area,
Amenities, leasing
Trash room,
Building support,
Use Description:
Lobby, stair, elevators
residential above
residential above
residential above
residential above
residential above
residential above
residential above
MP-1, 2, 3, 4
MP-10, 11, 12, 13, 14
Sub -slab samples:
MP-5, 6, 7, 8, 9
MP-15
MP-16, 17, 18, 19, 20
MP-21, 22
MP-23
MP-24, 25
MP-1 DUP
MP-13 DUP
IA-5, 6, 7, 8, 9
IA-16, 17, 18, 19
IA-24, 25
Indoor Air Samples:
IA-1, 2, 3, 4
IA-10, 11, 12, 13, 14
IA-15
IA-21, 22
IA-23
IA-7 DUP
IA-20 cannister failed
IA-25 DUP
Risk Criterion:
Cancer HI
Cancer HI
Cancer HI
Cancer HI
Cancer HI
Cancer HI
Cancer HI
Cancer HI
Use Scenarios
Residential
1.4E-05
6.1E-01
1.8E-05
5.2E-01
1.6E-05
5.1E-01
1.1E-05
3.7E-01
1.4E-05
4.9E-01
3.0E-06
1.9E-01
8.3E-06
5.7E-01
2.9E-06
1.6E-01
Non-residential
3.1E-06
1.4E-01
4.1E-06
1.2E-01
3.6E-06
1.2E-01
2.6E-06
8.8E-02
3.2E-06
1.2E-01
6.9E-07
4.6E-02
1.9E-06
1.4E-01
6.5E-07
3.8E-02
To evaluate risk in each EU:
1. The highest concentration of each compound detected in indoor air above MDLs was entered into the Risk Calculator.
2. If a compound was detected at a greater concentration in the indoor air than in the corresponding paired soil gas sample(s), thus indicating an indoor air source, then the concentration detected in the soil gas was used
in the risk calculation in lieu of the concentration detected in the indoor air.
3. For compounds not detected in indoor air but with MDLs above Residential Indoor Air Screening Levels, if the compound was not detected in the corresponding paired soil gas sample(s), then the compound was
assumed not to be present in indoor air and was excluded from the risk calculation. If the compound was detected in the corresponding paired soil gas sample(s), then a concentration equal to the MDL from laboratory
analysis of the indoor air sample was entered into the risk calculation.

APPENDIX A
VIMS INSPECTION LOGS
U Mid Atlantic

Mid Atlantic VIMS Inspection
mom
Field Tech : Colton Gotshall Date: 3/4/2022
Client: Aptus Project: Cabanas Street
Zane : Depressurization Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
Yes
Perforated horizontal pipes
NIA
Solid horizontal pipes
Yes
Washed gravel layer
Yes
Membrane barrier
NA
Monitoring points
NA
Smoke test
NIA
Vertical risers
Yes
Seals in concrete slab penetrationsroints
NIA
Fan installation and operation
NIIA
NIA
Stairwell
Elevator pit
NIA
-
-
;,r•,
� r�r �y� LL 'f
a:A
Notes: Gravel layer is not 57 stone but rather a pea gravel size. All gravel needs to be removed and replaced with washed 57 stone. Two vapor pits on -site. Helps were dug wl
small shovels throughout Building B and less than E inchesotgrave! was discovered In multiple holes.
r �
Signature C�w
Page 1 of 1

. Atlantic
VIMS Inspection
1h
Project
Field Tech : Nolen Barefoot
Info
Date : 3/7/2022
Client: Aptus
Project : Cabarrus Street
Zone : Barrier Only
Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
Yes
Perforated horizontal pipes
N/A
Solid horizontal pipes
N/A
Washed gravel layer
Yes
Membrane barrier
N/A
Monitoring points
N/A
Smoke test
N/A
Vertical risers
N/A
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
N/A
Elevator pit
N/A
Photos/Notes
Cam',
�
�•
it
r _
r. �
,.�
r-
i
74
'
A-
L
Pit 5 w/ plywood
>6" gravel layer
Notes : Piping from Pit 6 removed and has not been replaced at time of site visit.
Signature
_
r�
Page 1 of 1

. Atlantic
VIMS Inspection
Field Tech :
Colton Gotshall
Date : 3/16/2022
Client: Aptus
Project : Cabarrus Street
Zone : Depressurization
Utility Bank? No
i
DESCRIPTION
STATUS
Vapor pits
Yes
Perforated horizontal pipes
N/A
Solid horizontal pipes
Yes
Washed gravel layer
Yes
Membrane barrier
Yes
Monitoring points
Yes
Smoke test
Yes
Vertical risers
Yes
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
N/A
Elevator pit
N/A
Photos/Notes
s
Page 1 of2

Notes: Small area in southem portion of Building B has been filled with 57 stone to 6 inch depth. Vapor barrier laid down and passed smoke test. Monitoring points MP-10, MP-
11, MP-12, and MP-13 installed and checked with laser to be flush with concrete slab.
Signature
Page 2 of2

Atlantic
VIMS Inspection
Project
Field Tech : Colton Gotshall
Info
Date : 4/13/2022
Client: Aptus
Project : Cabarrus Street
Zone : Depressurization
Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
Yes
Perforated horizontal pipes
N/A
Solid horizontal pipes
Yes
Washed gravel layer
Yes
Membrane barrier
N/A
Monitoring points
N/A
Smoke test
N/A
Vertical risers
Yes
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
WA
Stairwell
N/A
Elevator pit
N/A
Photos/Notes
...: -�- - _ _
_ .. f •�
yam..
� r �
� .�
�
17
ow
.. r
IL
Page 1 of2

Notes: Inspection of Building A-1. Washed stone is confirmed to be 57 stone to a depth of at least six inches in multiple locations. The correct location has been confirmed of
the solid horizontal pipes running from two vapor pits to their respective vertical risers. No monitoring pins have been installed at this point. Vapor barrier has been installed
along the wall between the two elevation changes in Building A-1.
Signature
Page 2 of2

. Atlantic
VIMS Inspection
Field Tech :
Colton Gotshall
Date: 4/19/2022
Client: Aptus
Project : Cabarrus Street
Zone : Depressurization
Utility Bank? No
i
DESCRIPTION
STATUS
Vapor pits
Yes
Perforated horizontal pipes
N/A
Solid horizontal pipes
Yes
Washed gravel layer
Yes
Membrane barrier
Yes
Monitoring points
Yes
Smoke test
Yes
Vertical risers
Yes
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
N/A
Elevator pit
N/A
Photos/Notes
- a
M
,.
x
Page 1 of2

it
iAlme
,.. ,q
r �
AM
Al 41
p � d
Mk
wr
T
Sign -Off

Atlantic VIMS Inspection Form
Field Tech: Nolen Barefoot
Client: Aptus
Zone : Barrier Only
Date : 4/25/2022
Project : Cabarrus Street
Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
N/A
Perforated horizontal pipes
N/A
Solid horizontal pipes
N/A
Washed gravel layer
N/A
Membrane barrier
Yes
Monitoring points
Yes
Smoke test
Yes
Vertical risers
N/A
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
Yes
Elevator pit
N/A
Pagel of4

k
n

r.u■
,.1 00,
e� (J
A Ito
N.
luil
N

Notes : Stairwell, commercial trash room, main electrical room and the electrical vault in building A-1 have had a vapor barrier laid down. Smoke test was passed. MP-8 and
MP-9 installed.
Signature
Page 4 of4

Atlantic
VIMS Inspection Form
Field Tech: Colton Gotshall
Client: Aptus
Zone : Depressurization
Date : 4/28/2022
Project : Cabarrus Street
Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
Yes
Perforated horizontal pipes
N/A
Solid horizontal pipes
Yes
Washed gravel layer
Yes
Membrane barrier
N/A
Monitoring points
N/A
Smoke test
N/A
Vertical risers
Yes
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
Yes
Elevator pit
N/A
Pagel of2

Notes: Washed gravel layer of 57 stone was placed in Building A-2 and its stairway at depths of at least 6 inches. Mid -Atlantic checked gravel depth various times throughout
the entire building area. Solid pipe runs, vertical risers, and vapor pits appear to be in their correct locations. Smoke test set for Monday May 2.
Signature
C&�
Page 2 of2

10 Mid Atlantic
VIMS Inspection Form
Field Tech: Colton Gotshall
Client : Aptus
Zone : Depressurization
Date : 5I2l2022
Project : Cabarrus Street
Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
Yes
Perforated horizontal pipes
NIA
Solid horizontal pipes
Yes
Washed gravel layer
Yes
Membrane barrier
Yes
Monitoring points
Yes
Smoke test
Yes
Vertical risers
Yes
Seals in concrete slab penetrationsljoints
NIA
Fan installation and operation
NIA
Stairwell
Yes
Elevator pit
NIA
Page 1 of2

Notes - Smoke test completed on Building A-2 and its associated stairwell. Monitoring points MP-1 thrcugh MPA wea€T" re installed in their mapped locations.
Signature (&A

Atlantic VIMS Inspection Form
Field Tech: Colton Gotshall
Client: Aptus
Zone : Barrier Only
Date : 05/18/2022
Project : Cabarrus Street
Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
N/A
Perforated horizontal pipes
N/A
Solid horizontal pipes
N/A
Washed gravel layer
N/A
Membrane barrier
Yes
Monitoring points
N/A
Smoke test
N/A
Vertical risers
N/A
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
N/A
Elevator pit
Yes
Pagel of2

Notes : Two elevator pits in Building B have been visually inspected. Vapor barrier and associated tape appears to be correctly installed.
Signature
Page 2 of

Flit! Atlantic
Field Tech: Colton Gotshall
Client: Aptus
Zone : Depressurization
Project
Checklist
VIMS Inspection Form
Date : 05/25/2022
Project : Cabarrus Street
Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
Yes
Perforated horizontal pipes
N/A
Solid horizontal pipes
Yes
Washed gravel layer
Yes
Membrane barrier
N/A
Monitoring points
N/A
Smoke test
N/A
Vertical risers
N/A
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
N/A
Elevator pit
Yes
Pagel of 3

dbw
� J
Page 2 of 3

Notes: Washed gravel layer was verified for 57 stone of a depth of at least 6 inches on the eastern portion of Building B-2. Pit 8 was not fully installed during the site visit;
however, Mr. Dennis Strickland stated it would be completed by the end of the day.
Signature
Page 3 of 3

Flit! Atlantic VIMS Inspection Form
Field Tech: Nolen Barefoot
Client: Aptus
Zone : Depressurization
Date : 05/26/2022
Project : Cabarrus Street
Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
N/A
Perforated horizontal pipes
N/A
Solid horizontal pipes
N/A
Washed gravel layer
N/A
Membrane barrier
Yes
Monitoring points
Yes
Smoke test
Yes
Vertical risers
N/A
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
N/A
Elevator pit
N/A
Pagel of 3

Photos/Notes
I- � F-iei W"w
41
,O;.
it. .
m

Notes : Meeting/office area, mail room, phone room, and tv lounge have had barrier laid down. MP 18-20 installed. All areas smoke tested and passed.
Signature
Page 3 of 3

Flit! Atlantic VIMS Inspection Form
Field Tech: Gary Fischer
Client: Aptus
Zone : Barrier Only
Date : 06/03/2022
Project : Cabarrus Street
Utility Bank? Yes
DESCRIPTION
STATUS
Vapor pits
N/A
Perforated horizontal pipes
N/A
Solid horizontal pipes
N/A
Washed gravel layer
Yes
Membrane barrier
Yes
Monitoring points
Yes
Smoke test
Yes
Vertical risers
N/A
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
N/A
Elevator pit
N/A
Pagel of4

Photos/Notes

,i

Notes: I got the site and got up with Dennis (Clancy) and Rob Hill. They had put the vapor barrier over the 57 stone in the lobby area. There were 2 stub ups in the lobby. One
was a 4a€ white pipe the other was a 3a€ white pipe. Probably for sewer and water. There was one monitoring point to be installed in the lobby (MP-21) Rob performed the
smoke test under the barrier. He used one location but blew the smoke in two different directions. No leaks were identified during the test. I filled out the VIMS checklist on
XForms. I arrived at the site at 1150 and departed the site at 1320. We had to wait awhile for Donnelly to finish there lunch.
Signature
Page 4 of

Flit! Atlantic VIMS Inspection Form
Field Tech: Colton Gotshall
Client: Aptus
Zone : Depressurization
Date : 06/13/2022
Project : Cabarrus Street
Utility Bank? Yes
DESCRIPTION
STATUS
Vapor pits
Yes
Perforated horizontal pipes
N/A
Solid horizontal pipes
Yes
Washed gravel layer
Yes
Membrane barrier
N/A
Monitoring points
N/A
Smoke test
N/A
Vertical risers
Yes
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
N/A
Elevator pit
N/A
Pagel of2

XV
J
t' 1
'�+ •, f� � �
r t r l• t.
Notes : The middle section, (including mens and womens restrooms and tv lounge) of Building B-2 was inspected for a washed gravel layer and vapor pit 7. Various sections
were dug by shovel to check for 6 inch washed gravel thickness. All areas passed.
Signature
Page 2 of

Flit! Atlantic VIMS Inspection Form
Field Tech: Colton Gotshall
Client: Aptus
Zone : Depressurization
Date : 06/15/2022
Project : Cabarrus Street
Utility Bank? Yes
DESCRIPTION
STATUS
Vapor pits
Yes
Perforated horizontal pipes
N/A
Solid horizontal pipes
Yes
Washed gravel layer
Yes
Membrane barrier
Yes
Monitoring points
N/A
Smoke test
Yes
Vertical risers
Yes
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
N/A
Elevator pit
N/A
Pagel of2

Photos/Notes
Sign -Off
<-- End of Form -->

ft Mid Atlantic VINIS Inspection Form
=ietd Teel : Colt-n Go shail
Zone : ❑epiessurizaton
Dam., u6r2-&,2t:2--
Pro, :ct : Cabarrus Street
Utility Bank? No
DESCRIPT:UN
STATUS
Vapar pits
•es
Perforated horizontal pipes
NIA
Solid horizontal pipes
Yes
Washed gravel layer
Yes
Membrane barber
NIA
Monitoring paints
NIA
Smoke test
NIA
Vertical risers
NIA
Seals in concrete slab penetraibonsljoints
NIA
Fan installation and operation
NIA
Stairwell
NIA
Elevator pit
Yes
Paw- 1 afy

Photos/Notes
I I Mom
I
■
�4-
Skjn-. A.
<- End of Form ->
L 0
O-i
0
m
ti

Atlantic Field Notes
Field Tech: Colton Gotshall
Project Name: JC Penney North Hills Redevelopment
Date: 06/28/2022
Notes : Depressurization Influence Testing (-Pascals):
Pagel of2

Pit 2:
MP-1 = 24.9
MP-2 = 669.7
Pit 1:
MP-3 = 150.8
MP-4 = Barrier Only
Pit 4:
MP-5 = 40.2
MP-6 = 44.6
Pit 3:
MP-7 = 67.1
MP-8 = Currently Destroyed
MP-9 = Barrier Only
Pit 5:
MP-10 = 9.9
MP-11 = 9.4
Pit 6:
MP-12 = 19.2
MP-13 = 27.5
MP-14 = 7.0
MP-15 = 7.6
Pit 7:
MP-16 = 8.2
MP-17 = 12.3
MP-18 = 2.2 (they have open concrete around this point to fix plumbing)
Pit 8:
MP-19 = hazard zone during testing
MP-20 = hazard zone during testing
Page 2 of2

Flit! Atlantic VIMS Inspection Form
Field Tech: Colton Gotshall
Client: Aptus
Zone : Barrier Only
Date : 06/28/2022
Project : Cabarrus Street
Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
N/A
Perforated horizontal pipes
N/A
Solid horizontal pipes
N/A
Washed gravel layer
N/A
Membrane barrier
N/A
Monitoring points
N/A
Smoke test
Yes
Vertical risers
N/A
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
N/A
Elevator pit
N/A
Pagel of2

Notes : Northwest corner portion of Building B passed smoke test.
Signature
1�4
Page 2 of2

met Atlantic Field Notes
Field Tech: Colton Gotshall
Client: Aptus
Date: 08/10/2022
Project Name: Cabarrus
Street
Notes : Depressurization Influence Testing (-Pascals):
Page 1 of 2

Pit 8:
MP-19 = -23.5
MP-20 = -56.2
Page 2 of 2

Flit! Atlantic VIMS Inspection Form
Field Tech: Colton Gotshall
Client: Aptus
Zone : Barrier Only
Date : 08/10/2022
Project : Cabarrus Street
Utility Bank? Yes
DESCRIPTION
STATUS
Vapor pits
N/A
Perforated horizontal pipes
N/A
Solid horizontal pipes
N/A
Washed gravel layer
N/A
Membrane barrier
Yes
Monitoring points
Yes
Smoke test
Yes
Vertical risers
N/A
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
N/A
Elevator pit
N/A
Pagel of2

Notes: Vapor barrier installed on the northwestern portion of the site (Maintenance office, electrical, and MPF). Monitoring point MP-24 installed. Smoke test was passed after
secondary taping was done.
Signature
X"-
Page 2 of2

Flit! Atlantic VIMS Inspection Form
Field Tech: Colton Gotshall
Client: Aptus
Zone : Barrier Only
Date : 08/23/2022
Project : Cabarrus Street
Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
N/A
Perforated horizontal pipes
N/A
Solid horizontal pipes
N/A
Washed gravel layer
N/A
Membrane barrier
Yes
Monitoring points
N/A
Smoke test
Yes
Vertical risers
N/A
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
Yes
Elevator pit
N/A
Pagel of2

,
Photos/Notes
�4-
<-- End of Form -->

Flit! Atlantic VIMS Inspection Form
Field Tech: Colton Gotshall
Client: Aptus
Zone : Barrier Only
Date : 08/23/2022
Project : Cabarrus Street
Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
N/A
Perforated horizontal pipes
N/A
Solid horizontal pipes
N/A
Washed gravel layer
N/A
Membrane barrier
Yes
Monitoring points
Yes
Smoke test
Yes
Vertical risers
N/A
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
N/A
Elevator pit
N/A
Pagel of2

Notes: Vapor barrier was installed in the trash room on the southwest corner of the parking garage area. Successfully passed a smoke test and MP- 23 was installed.
Signature height=
Page 2 of2

Flit! Atlantic VIMS Inspection Form
Field Tech: Colton Gotshall
Client: Aptus
Zone : Barrier Only
Date : 08/29/2022
Project : Cabarrus Street
Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
N/A
Perforated horizontal pipes
N/A
Solid horizontal pipes
N/A
Washed gravel layer
N/A
Membrane barrier
Yes
Monitoring points
Yes
Smoke test
Yes
Vertical risers
N/A
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
Yes
Elevator pit
Yes
Page 1 of 2

Notes: Vapor barrier was installed on the southeast corner of the parking garage, Building C, in the remainder of the Lobby, storage room, elevator pit, and Stair 3. The elevator
pit was visually inspected and appears to be sealed correctly. Smoke test was passed successfully on the remaining areas inspected today. MP-22 was installed inside
Stair 3. Darin, Superintendent for Donleys, told Mid -Atlantic this am that a concrete Tooter was poured underneath and there is a couple feet of gravel between the footer
and the vapor barrier.
Signature
Page 2 of 2

Flit! Atlantic VIMS Inspection Form
Field Tech: Colton Gotshall
Client: Aptus
Zone : Barrier Only
Date : 09/28/2022
Project : Cabarrus Street
Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
N/A
Perforated horizontal pipes
N/A
Solid horizontal pipes
N/A
Washed gravel layer
N/A
Membrane barrier
Yes
Monitoring points
N/A
Smoke test
Yes
Vertical risers
N/A
Seals in concrete slab penetrations/joints
N/A
Fan installation and operation
N/A
Stairwell
N/A
Elevator pit
N/A
Pagel of2

Notes: Pump room and domestic pump room had a vapor barrier installed upon arrival and was successfully smoke tested.
Signature
A�4
Page 2 of2

ft Mid Atlantic VIMS Inspection Form
Field Tech : Colton Gotshall
Client: Aptus
Zone : Depressurization
Date., 0511812023
Project : Cabarrus Street
Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
NIA
Perforated horizontal pipes
NIA
Solid horizontal pipes
NIA
Washed gravel layer
NIA
Membrane barrier
NIA
Monitoring paints
Yes
Smoke test
NIA
Vertical risers
NIA
Seals in concrete slab penetrationsljoints
NIA
Fan installation and operation
NIA
Stairwell
NIA
Elevator pit
NIA
Pax 1 nf3

Photos/Notes
i�
i
- r �
l -�

Notes: Vapor pins associated with monitoring points MP-8 and MP-21 through MP-25 installed. Unable to locate MP-6 and MP-1 S due to obstacles on the floor from ongoing
constriction. All other monitoring points were accounted for and checked to be in good condition.
Signature
Paw 3 of3

ft Mid Atlantic VIMS Inspection Form
Field Tech : Colton Gotshall
Client: Aptus
Zone : Depressurization
Date : 05131I2023
Project . Cabarrus Street
Utility Bank? No
DESCRIPTION
STATUS
Vapor pits
NIA
Perforated horizontal pipes
NIA
Solid horizontal pipes
NIA
Washed gravel layer
NIA
Membrane barrier
NIA
Monitoring paints
Yes
Smoke test
NIA
Vertical risers
NIA
Seals in concrete slab penetrationsljoints
NIA
Fan installation and operation
Yes
Stairwell
N/A
Elevator pit
NIA
Pax f of?

Notes - Influence Testi ng MP-1 = 448.1 MP-2 = -664.3 MP-3 = -685.5 MP-4 = -1.0 MP-5 = -800.6 MP-6 = -803.7 MP-7 = -786.2 MP-8 = 0.0 MP-0 = -23.1 MP-10 = -31.5 MP-
11 =-22.3 MP-12 =-88.7 MP-13 = -129.5 MP-14 =-78.6 MP-15 = -96.6 MP-16 = -203.7 MP-17 = -233.6 MP-18=-217.3 MP-19=-151.2 MP-20 =-211.5 All measurements
are in Pascals. VIMS fans were operational upon arrival.
Signature
Page 2 of2

APPENDIX B
INDOOR AIR BUILDING SURVEY AND SAMPLING FORM
U Mid Atlantic

INDOOR AIR BUILDING SURVEY
and SAMPLING FORM
Site Name: FVI'MC✓ G IIt MGP NO. 2- ID#:
Preparer's name: N ©t.Lh Date: 5-(3'0 /Z 3
Preparer's affiliation: PA Phone #: (zoZ) L8'Sl' ZCQ 4
Part I - Occupants Building Address: 600 C A ba �r! v S S4 PC 2 7&® 3
Property Contact: Dton%iS Owner / Renter / of iv�ci���•„d -- Ckn`y ♦ TLty s
Contact's Phone: home ( ) work ( ) cel (IM) 4Z? -03& 3
# of Building occupants: Children under age 13 Children age 13-18 Adults
Part II — Building Characteristics `
r-
Building type: residential / multi -family residents / office / strip mall / commercial industrial
Describe building: S145, `��Z �. �t 2 i• �i Cewc/.e4, Year constructed: Z-02 Z -�7
Sensitive populationAday care / nursing home / hospital / school / other (specify):
Number of floors below grade: Al� V (full basement / crawl space / slab on grade)
Number of floors at or above grade: _7
Depth of basement below grade
/ surface: W ft. Basement size: ftz
Basement floor constructions 4 rete / dirt / floating / stone / other (specify):
Foundation walls: ioured conc e / 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
eat u hot water radiation kerosene heater electric baseboard
other (specify):
Type of vents%cle all that apply):
mechanical fans athroom ventilation
i-- dey
air conditioning um ss kitchen range hood fan outside air intake
r (specify):
Type of fuel util' d (circ 11 that apply):
atural jA / 012ectricfuel oil / wood / coal / solar / kerosene
Are the basement walls or floor sealed with waterproof paint or epoxy coatings? IJI A Yes / No

Part V — Miscellaneous Items
Do any occupants of the building smoke? /V/� Yes / No How often?
Last time someone smoked in the building? hours / days ago L
Does the building have an attached garage directly connected to living space? (Eepl/ 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? G / No
Do the occupants of the building have their clothes dry cleaned?A✓/A Yes / No
If yes, how often? weekly / monthly / 3-4 times a year
Do any of the occupants use solvents in work? /1//,. 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 (20�)
If so, when and which chemicals?
Has there ever been a fire in the building? Yes /0 If yes, when?
Has painting or staining been done in the building
CCi..n the last 6 months? Ye / No
If yes, when ✓e V 5--,0Ind where? o 4S�.
{nP-Q,rotP-a)
Part VI —Sampling Information
Sample Technician: A/o (cA Phone number: (Zd Z) T rM - 2 (44 7
Sample Source: doDrAi'
/ Crawlspace Air / Sub-Sla / Near Slab Soil Gas / Exterior Soil Gas
Sampler Type: Tedlar bag / Sorbent / winle=Steel-CanisterOther (specify):
Analytical Method / TO-17 / other: Cert. Laboratory: ; A c -L
Sample locations (floor, room):
Field ID # -
Field ID # -
Field ID # -
Field ID # -
Were "Instructions for Occupants" followed? Yes No
If not, describe modifications:

Is there a whole house fan?
Septic system?
Irrigation/private well?
Yes /�
Yes / Yes (but not used)
Yes / Yes (but not used)
Type of ground cover outside of building: grass / concrete / asphalt / other (specify) Pl., dV'I,
Existing subsurface depressurization (radon) system in place? Yes No active /passive
Sub -slab vapor/moisture barrier in place? es / No
Type of barrier: V, Y(ac
Part III - Outside Contaminant Sources
Other stationary sources nearby (gas stations, emission stacks, etc.): 4,40 5911 f4f jl kj -Jj .
Heavy vehicular traffic nearby (or other mobile sources): j;�lf �7 �l,j , h/a - ex�w�w�o� , o'11•a_�T�^� •µ'sac
Part IV — Indoor Contaminant Sources
Identify all potential indoor sources found in the building (including attached garages) and crawlspace (if
present), 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
?,,. 40--4 o-il o,,f t.a- btu
NO
Kerosene storage cans
Paints / thinners / strippers
<abb Us-k-s6e, %4f%.
tk Ajo
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
7 l A ; 1% (14
NA
Hobbies - glues, paints, etc.
•.(..�, ,..x�d•��

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: Tv►n;cu wu.'i1.�� �owl•�-i•"f dvr,'�S �,w, p►• �� 6 -75° srN" J%11I
�r o-vt.sl
s%r®ro. 6�+•z. olsalva •an D" Z ✓l A.& +yfn.'.n of fiv
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)

tAsf 7
5
—2
P-2
T4„F K,
IA 23W 1^rJove IA- 1
"5
A.ia Y
MP-1 SUB —SLOB MONITORING PAINT MP-14 IA-16 I
IA-1 INOO❑R AIR SAMPLE LOCATION `
® OA-1 OUTDOOR AIR SAMPLE LOCATION
MP-13 •
IA-13 0 MP-2 r
OIA` * IA-22 r r..[++■d,j �.. c•�....�
nv --- —12 + ea�o •O
+
MP-1
W-3 8
V j
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MP-10
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I
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IL AT
I+
i.�v
,w..■.•Y
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pn,nt
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* MP-8
IA—
— SIB $
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_
ip (ar.�
❑ 64'
OS
SCALE: 1 I64"=1 '— ❑"
a
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0 IA-1 INDOOR AIR SAMPLE LOCATION QQ ® OA-1 OUTDOOR AIR SAMPLE LOCATION �.,I , LLJ
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SCALE: 1 /64"=1 '-O" or_

APPENDIX C
FIELD NOTES
U Mid Atlantic

Mid-AtlanticAssociates,
Field Notes
cfit -awe^41 -70" V61
b'-.-7-7
Job Name: r 4w .%lc4 (z: L
M6.10
1110. 2
Date: & 13 - 6 r 7-1
Job Number:
.`00
Technician: TW13
Task Number: goOOO
Weather: Svw �-��J° br s-- I
Location:
v (, L
C, jl.r Sf
Arrival 1On
ge0 '
Depature: 17,Z.ti'�
12J�
Notes:
S H
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Equipment / Expendables Used:
Page )
of
Z
Signature
T�iw
maafieldnotes.xl

Mid -Atlantic Associates,
Field
Notes
Date: G 1 /q f t7
Job Name:
A4W
IJa. 2
Job Number: 3� s00
Technician: TI/r7
Task Number: 0000
Weather: SeL P, (
Location:
Arrival: M Depature: fLZ5 f j z!57
Notes:
1a.
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j`0,90
t015
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� -$ Lew 12-2-5- .25_
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FL
3010
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Equipment / Expendables Used:
Page Z
Of
Signature
maafieldnotes:xf

Associates,
Field Notes`
Job Name: r l tiSI MG f A16. 2Z
Date: & (? z 3
Job Number: A 3
Technician: Twi3
Task Number: 90000
Weather:
s..,ot� •�
Location: Rot,-: S
l Ca b..,. df
S -
Arrival: 100
Depature: GD 0
Notes:
M P= 2�- /
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Equipment / Expendables Used:
C
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Page
of `
Signature
maafieldnotes:xl

Mid-AtlantIc Associates,
Field Notes
Notes:
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Page Z
of
Signature
maafieldnotesxl

Associates,
Field Notes
Job Name: / ,,,'`RxCa L
MG P Na. 2
Date: { -7
23
Job Number:
3 7 , 00
Technician:
Task Number: COD Do
Weather:
Location:
Arrival:
Depature:
Notes:
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Page 3
of
Signature'
maafieldnotes.xl

Mid -Atlantic Associates,
Field Notes
Job Name: „V„rAfu'eik M&V' N. 2 1 Date: G17/-x3
Job Number: 93 7 4 Co. 00
Technician:
Task Number:
Weather:
Location:
Arrival:
Depature:
Notes:
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Page L(
of
Signature
maafieldnotes.xi

APPENDIX D
LABORATORY ANALYTICAL REPORTS
AND CHAIN -OF -CUSTODY RECORDS FOR
INDOOR/AMBIENT AIR
Mid Atlantic

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
June 19, 2023
Nolen Barefoot
Mid -Atlantic Associates, Inc. - Raleigh, NC
409 Rogers View Court
Raleigh, NC 27610
Project Location: Raleigh, NC
Client Job Number:
Project Number: R3746.00
Laboratory Work Order Number: 23F1309
Enclosed are results of analyses for samples as received by the laboratory on June 9, 2023. If you have any questions concerning
this report, please feel free to contact me.
Sincerely,
Rebecca Faust
Project Manager
QA Officer
Katherine Allen
Laboratory Manager
Daren Damboragian
Page 1 of 102

con-testo
A Pace Analytical' Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
Mid -Atlantic Associates, Inc. - Raleigh, NC REPORT DATE: 6/19/2023
409 Rogers View Court
Raleigh, NC 27610 PURCHASE ORDER NUMBER:
ATTN: Nolen Barefoot
PROJECT NUMBER: R3746.00
ANALYTICAL SUMMARY
WORK ORDER NUMBER: 23F1309
The results of analyses performed on the following samples submitted to Con -Test, a Pace Analytical Laboratory, are found in this report.
PROJECT LOCATION: Raleigh, NC
FIELD SAMPLE # LAB ID: MATRIX SAMPLE DESCRIPTION TEST SUB LAB
IA-1
23F1309-01
Indoor air
EPA TO-15
IA-2
23171309-02
Indoor air
EPA TO-15
IA-3
23F1309-03
Indoor air
EPA TO-15
IA-5
23171309-04
Indoor air
EPA TO-15
IA-6
23171309-05
Indoor air
EPA TO-15
IA-7
23F1309-06
Indoor air
EPA TO-15
IA-7 DUP
23171309-07
Indoor air
EPA TO-15
IA-9
23171309-08
Indoor air
EPA TO-15
IA-10
23F1309-09
Indoor air
EPA TO-15
IA-11
23171309-10
Indoor air
EPA TO-15
IA-12
23171309-11
Indoor air
EPA TO-15
IA-14
23F1309-12
Indoor air
EPA TO-15
IA-13
23171309-13
Indoor air
EPA TO-15
IA-16
23171309-14
Indoor air
EPA TO-15
IA-17
23F1309-15
Indoor air
EPA TO-15
IA-18
23171309-16
Indoor air
EPA TO-15
IA-19
23171309-17
Indoor air
EPA TO-15
UNUSED
23F1309-18
IA-23
23F1309-19
Indoor air
EPA TO-15
IA-15
23F1309-20
Indoor air
EPA TO-15
IA-24
23F1309-21
Indoor air
EPA TO-15
Page 2 of 102

con-testo
A Pace Analytical' Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
Mid -Atlantic Associates, Inc. - Raleigh, NC REPORT DATE: 6/19/2023
409 Rogers View Court
Raleigh, NC 27610 PURCHASE ORDER NUMBER:
ATTN: Nolen Barefoot
PROJECT NUMBER: R3746.00
ANALYTICAL SUMMARY
WORK ORDER NUMBER: 23F1309
The results of analyses performed on the following samples submitted to Con -Test, a Pace Analytical Laboratory, are found in this report.
PROJECT LOCATION: Raleigh, NC
FIELD SAMPLE # LAB ID: MATRIX SAMPLE DESCRIPTION TEST SUB LAB
IA-25
231`1309-22
Indoor air
EPA TO-15
IA-25 DUP
23171309-23
Indoor air
EPA TO-15
IA-21
23F1309-24
Indoor air
EPA TO-15
OA
23171309-25
Indoor air
EPA TO-15
IA-22
23171309-26
Indoor air
EPA TO-15
IA-4
23F1309-27
Indoor air
EPA TO-15
IA-8
23171309-28
Indoor air
EPA TO-15
UNUSED
23171309-29
UNUSED
23F1309-30
Page 3 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CASE NARRATIVE SUMMARY
All reported results are within defined laboratory quality control objectives unless listed below or otherwise qualified in this report.
Page 4 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
EPA TO-15
Qualifications:
B-05 Data is not affected by elevated level in laboratory blank since sample(s) result is 'Not Detected".
Analyte & Samples(s) Qualified:
Benzyl chloride
B343424-BLKI
Reported result is estimated. Value reported over verified calibration range.
Analyte & Samples(s) Qualified:
Acetone, Ethanol
23F1309-04[IA-5], 23F1309-05[IA-6], 23F1309-06[IA-7], 23F1309-07[IA-7 DUP], 23F1309-08[IA-9], 23F1309-09RE1[IA-10], 23F1309-10RE1[IA- 11],
23F1309-11RE1[IA-12], 23F1309-12RE1[IA-14], 23F1309-13RE1[IA-13], 23F1309-28[IA-8], B343439-DUPI, B343523-DUPI, 23F1309-14[IA-16], 23F1309-15[IA-17],
23F 1309-16RE 1 [IA-18], 23F 1309-17RE 1 [IA-19]
L-01 Laboratory fortified blank/laboratory control sample recovery outside of control limits. Data validation is not affected since all results are "not
detected" for all samples in this batch for this compound and bias is on the high side.
Analyte & Samples(s) Qualified:
Hexachlorobutadiene
B343424-BS1, B343439-BSI, B343523-BSI, B343662-BSI
L-03 Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this compound is likely to be
biased on the low side.
Analyte & Samples(s) Qualified:
Isopropanol, Methylene Chloride
B343523-BLKI, B343523-BSI
L-05 Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this compound is likely to be
biased on the high side.
Analyte & Samples(s) Qualified:
2-Butanone (MEK), Naphthalene
23F1309-12[IA-14], 23F1309-13[IA-13], 23F1309-14[IA-16], 23F1309-15[IA-17], 23F1309-19[IA-23], 23F1309-20[IA-15], 23F1309-21[IA-24], 23F1309-22[IA-25],
23F1309-23[IA-25 DUP], 23F1309-24[IA-21], 23F1309-25[OA], 23F1309-26[IA-22], 23F1309-27[IA-4], 23F1309-28[IA-8], B343439-BSI, 23F1309-16[IA-18],
23F1309-17[IA-19], B343439-DUPI
R-01 Duplicate RPD is outside of control limits. Reduced precision is anticipated for reported result.
Analyte & Samples(s) Qualified:
2-Butanone (MEK)
B343424-DUPI
V-06 Continuing calibration verification (CCV) did not meet method specifications and was biased on the high side for this compound.
Analyte & Samples(s) Qualified:
Naphthalene
23F1309-01[IA-1], 23F1309-02[IA-2], 23F1309-03[IA-3], 23F1309-04[IA-5], 23F1309-05[IA-6], 23F1309-06[IA-7], 23F1309-07[IA-7 DUP], 23F1309-08[IA-9],
23F1309-09[IA-10], 23F1309-10[IA-11], 23F1309-11[IA-12], 23F1309-12[IA-14], 23F1309-13[IA-13], 23F1309-14[IA-16], 23F1309-15[IA-17], 23F1309-16[IA-18],
23F1309-17[IA-19], 23F1309-19[IA-23], 23F1309-20[IA-15], 23F1309-27[IA-4], 23FI309-28[IA-8], B343424-BSI, B343424-DUPI, B343439-BSI, B343439-DUPI,
B343523-BS1, B343662-BSI, S089166-CCVI, S089178-CCVI, S089198-CCVI, S089293-CCVI
Page 5 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] ` TEL. [phone]
V-20 Continuing calibration verification (CCV) did not meet method specifications and was biased on the high side. Data validation is not affected
since sample result was "not detected" for this compound.
Analyte & Samples(s) Qualified:
1,2,4-Trichlorobenzene, Hexachlorobutadiene
B343424-BS1, B343439-BSI, S089166-CCVI, S089178-CCVI, B343523-BSI, B343662-BSI, S089198-CCVI, S089293-CCVI
Z-01 Calibrations RSD for this compound is >30% but <40%.
Analyte & Samples(s) Qualified:
Naphthalene
23171309-01[IA-1], 23F1309-02[IA-2], 23F1309-03[IA-3], 23F1309-04[IA-5], 23F1309-05[IA-6], 231F1309-06[IA-7], 23171309-07[IA-7 DUP], 23F1309-08[IA-9],
23F1309-09[IA-10], 23F1309-10[IA-11], 23F1309-11[IA-12], 23F1309-12[IA-14], 23F1309-13[IA-13], 23F1309-14[IA-16], 23F1309-15[IA-17], 23F1309-16[IA-18],
23F1309-17[IA-19], 23F1309-19[IA-23], 23F1309-20[IA-15], 23F1309-21[IA-24], 23F1309-22[IA-25], 23F1309-23[IA-25 DUP], 23F1309-24[IA-21], 23F1309-25[OA],
23F1309-26[IA-22], 23F1309-27[IA-4], 23F1309-28[IA-8], B343424-BLKI, B343424-BSI, B343424-DUPI, B343439-BLKI, B343439-BSI, B343439-DUPI,
B343523-BLKI, B343523-BSI, B343662-BLKI, B343662-BS1, S089166-CCVI, S089178-CCVI, S089198-CCVI, S089293-CCVI
The results of analyses reported only relate to samples submitted to Con -Test, a Pace Analytical Laboratory, for testing.
I certify that the analyses listed above, unless specifically listed as subcontracted, if any, were performed under my direction according to the approved methodologies listed
in this document, and that based upon my inquiry of those individuals immediately responsible for obtaining the information, the material contained in this report is, to the
best of my knowledge and belief, accurate and complete.
d�
Lisa A. Worthington
Technical Representative
Page 6 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-1
Sample ID: 23F1309-01
Sample Matrix: Indoor air
Sampled: 6/4/2023 09:02
Sample Description/Location:
Sub Description/Location:
Canister ID: 2016
Canister Size: 6 liter
Flow Controller ID: 3417
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -31
Final Vacuum(in Hg): -9.5
Receipt Vacuum(in Hg): -8.2
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual
Results
RL
MDL
Dilution
Analyzed
Analyst
Acetone
55
4.0
2.4
130
9.5
5.7
2
6/15/23 19:25
CMR
Benzene
0.23
0.035
0.026
0.74
0.11
0.084
0.698
6/14/23 14:35
CMR
Benzyl chloride
ND
0.14
0.031
ND
0.72
0.16
0.698
6/14/23 14:35
CMR
Bromodichloromethane
ND
0.035
0.024
ND
0.23
0.16
0.698
6/14/23 14:35
CMR
Bromoform
ND
0.035
0.024
ND
0.36
0.25
0.698
6/14/23 14:35
CMR
Bromomethane
ND
0.035
0.023
ND
0.14
0.090
0.698
6/14/23 14:35
CMR
1,3-Butadiene
ND
0.035
0.029
ND
0.077
0.065
0.698
6/14/23 14:35
CMR
2-Butanone (MEK)
20
1.4
0.37
60
4.1
1.1
0.698
6/14/23 14:35
CMR
Carbon Disulfide
0.48
0.35
0.032
1.5
1.1
0.10
0.698
6/14/23 14:35
CMR
Carbon Tetrachloride
0.078
0.035
0.028
0.49
0.22
0.17
0.698
6/14/23 14:35
CMR
Chlorobenzene
ND
0.035
0.023
ND
0.16
0.11
0.698
6/14/23 14:35
CMR
Chloroethane
ND
0.035
0.031
ND
0.092
0.082
0.698
6/14/23 14:35
CMR
Chloroform
0.035
0.035
0.033
0.17
0.17
0.16
0.698
6/14/23 14:35
CMR
Chloromethane
0.57
0.070
0.028
1.2
0.14
0.057
0.698
6/14/23 14:35
CMR
Cyclohexane
0.099
0.035
0.021
0.34
0.12
0.073
0.698
6/14/23 14:35
CMR
Dibromochloromethane
ND
0.035
0.023
ND
0.30
0.20
0.698
6/14/23 14:35
CMR
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
0.16
0.698
6/14/23 14:35
CMR
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
0.12
0.698
6/14/23 14:35
CMR
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
0.12
0.698
6/14/23 14:35
CMR
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
0.14
0.698
6/14/23 14:35
CMR
Dichlorodifluoromethane (Freon 12)
0.55
0.035
0.034
2.7
0.17
0.17
0.698
6/14/23 14:35
CMR
1, 1 -Dichloroethane
ND
0.035
0.030
ND
0.14
0.12
0.698
6/14/23 14:35
CMR
1,2-Dichloroethane
0.047
0.035
0.032
0.19
0.14
0.13
0.698
6/14/23 14:35
CMR
1, 1 -Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/14/23 14:35
CMR
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
0.10
0.698
6/14/23 14:35
CMR
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/14/23 14:35
CMR
1,2-Dichloropropane
0.021
0.035
0.019
J
0.097
0.16
0.087
0.698
6/14/23 14:35
CMR
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.082
0.698
6/14/23 14:35
CMR
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.081
0.698
6/14/23 14:35
CMR
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
0.24
0.698
6/14/23 14:35
CMR
1,4-Dioxane
0.19
0.35
0.029
J
0.69
1.3
0.10
0.698
6/14/23 14:35
CMR
Ethanol
32
4.0
1.8
61
7.5
3.3
2
6/15/23 19:25
CMR
Ethyl Acetate
0.25
0.35
0.18
J
0.91
1.3
0.64
0.698
6/14/23 14:35
CMR
Ethylbenzene
0.56
0.035
0.020
2.4
0.15
0.088
0.698
6/14/23 14:35
CMR
4-Ethyltoluene
0.056
0.035
0.021
0.27
0.17
0.11
0.698
6/14/23 14:35
CMR
Heptane
0.60
0.035
0.022
2.4
0.14
0.091
0.698
6/14/23 14:35
CMR
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
0.31
0.698
6/14/23 14:35
CMR
Hexane
0.45
1.4
0.18
J
1.6
4.9
0.64
0.698
6/14/23 14:35
CMR
2-Hexanone (MBK)
0.21
0.14
0.017
0.85
0.57
0.071
0.698
6/14/23 14:35
CMR
Isopropanol
3.6
1.4
0.24
8.9
3.4
0.59
0.698
6/14/23 14:35
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
0.097
0.698
6/14/23 14:35
CMR
Methylene Chloride
ND
0.35
0.16
ND
1.2
0.56
0.698
6/14/23 14:35
CMR
4-Methyl-2-pentanone (MIBK)
0.19
0.035
0.019
0.76
0.14
0.076
0.698
6/14/23 14:35
CMR
Naphthalene
0.068
0.035
0.026
V-06, Z-01
0.36
0.18
0.14
0.698
6/14/23 14:35
CMR
Propene
ND
1.4
0.31
ND
2.4
0.53
0.698
6/14/23 14:35
CMR
Styrene
0.47
0.035
0.018
2.0
0.15
0.078
0.698
6/14/23 14:35
CMR
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/14/23 14:35
CMR
Page 7 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171309
Date Received: 6/9/2023
Sub Description/Location:
Initial Vacuum(in Hg): -31
Field Sample #: IA-1
Canister ID: 2016
Final Vacuum(in Hg): -9.5
Sample ID: 23F1309-01
Canister Size: 6 liter
Receipt Vacuum(in Hg): -8.2
Sample Matrix: Indoor air
Flow Controller ID: 3417
Flow Controller Type: Fixed -Orifice
Sampled: 6/4/2023 09:02
Sample Type: 24 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual Results
RL
MDL
Dilution
Analyzed
Analyst
Tetrachloroethylene
0.031
0.035
0.027
J 0.21
0.24
0.18
0.698
6/14/23 14:35
CMR
Tetrahydrofuran
33
1.0
0.16
97
2.9
0.48
2
6/15/23 19:25
CMR
Toluene
5.3
0.035
0.020
20
0.13
0.075
0.698
6/14/23 14:35
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/14/23 14:35
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/14/23 14:35
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/14/23 14:35
CMR
Trichloroethylene
0.054
0.035
0.024
0.29
0.19
0.13
0.698
6/14/23 14:35
CMR
Trichlorofluoromethane (Freon 11)
0.21
0.14
0.041
1.2
0.78
0.23
0.698
6/14/23 14:35
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.066
0.14
0.039
J 0.50
1.1
0.30
0.698
6/14/23 14:35
CMR
1,2,4-Trimethylbenzene
0.33
0.035
0.015
1.6
0.17
0.076
0.698
6/14/23 14:35
CMR
1,3,5-Trimethylbenzene
0.082
0.035
0.018
0.40
0.17
0.091
0.698
6/14/23 14:35
CMR
Vinyl Acetate
1.7
0.70
0.19
6.0
2.5
0.66
0.698
6/14/23 14:35
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/14/23 14:35
CMR
m&p-Xylene
2.2
0.070
0.039
9.7
0.30
0.17
0.698
6/14/23 14:35
CMR
o-Xylene
0.87
0.035
0.018
3.8
0.15
0.078
0.698
6/14/23 14:35
CMR
Surrogates
% Recovery
% REC Limits
4-Bromofluorobenzene (1)
99.1
70-130
6/14/23 14:35
4-Bromofluorobenzene (1)
96.1
70-130
6/15/23 19:25
Page 8 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-2
Sample ID: 23F1309-02
Sample Matrix: Indoor air
Sampled: 6/4/2023 09:03
Sample Description/Location:
Sub Description/Location:
Canister ID: 1626
Canister Size: 6 liter
Flow Controller ID: 3508
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -7
Receipt Vacuum(in Hg): -7.3
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual
Results
RL
MDL
Dilution
Analyzed
Analyst
Acetone
55
4.0
2.4
130
9.5
5.7
2
6/15/23 19:51
CMR
Benzene
0.24
0.035
0.026
0.76
0.11
0.084
0.698
6/14/23 15:06
CMR
Benzyl chloride
ND
0.14
0.031
ND
0.72
0.16
0.698
6/14/23 15:06
CMR
Bromodichloromethane
ND
0.035
0.024
ND
0.23
0.16
0.698
6/14/23 15:06
CMR
Bromoform
ND
0.035
0.024
ND
0.36
0.25
0.698
6/14/23 15:06
CMR
Bromomethane
0.027
0.035
0.023
J
0.10
0.14
0.090
0.698
6/14/23 15:06
CMR
1,3-Butadiene
ND
0.035
0.029
ND
0.077
0.065
0.698
6/14/23 15:06
CMR
2-Butanone (MEK)
19
1.4
0.37
55
4.1
1.1
0.698
6/14/23 15:06
CMR
Carbon Disulfide
0.49
0.35
0.032
1.5
1.1
0.10
0.698
6/14/23 15:06
CMR
Carbon Tetrachloride
0.089
0.035
0.028
0.56
0.22
0.17
0.698
6/14/23 15:06
CMR
Chlorobenzene
ND
0.035
0.023
ND
0.16
0.11
0.698
6/14/23 15:06
CMR
Chloroethane
0.052
0.035
0.031
0.14
0.092
0.082
0.698
6/14/23 15:06
CMR
Chloroform
0.040
0.035
0.033
0.20
0.17
0.16
0.698
6/14/23 15:06
CMR
Chloromethane
0.67
0.070
0.028
1.4
0.14
0.057
0.698
6/14/23 15:06
CMR
Cyclohexane
0.13
0.035
0.021
0.44
0.12
0.073
0.698
6/14/23 15:06
CMR
Dibromochloromethane
ND
0.035
0.023
ND
0.30
0.20
0.698
6/14/23 15:06
CMR
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
0.16
0.698
6/14/23 15:06
CMR
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
0.12
0.698
6/14/23 15:06
CMR
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
0.12
0.698
6/14/23 15:06
CMR
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
0.14
0.698
6/14/23 15:06
CMR
Dichlorodifluoromethane (Freon 12)
0.54
0.035
0.034
2.7
0.17
0.17
0.698
6/14/23 15:06
CMR
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
0.12
0.698
6/14/23 15:06
CMR
1,2-Dichloroethane
0.048
0.035
0.032
0.19
0.14
0.13
0.698
6/14/23 15:06
CMR
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/14/23 15:06
CMR
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
0.10
0.698
6/14/23 15:06
CMR
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/14/23 15:06
CMR
1,2-Dichloropropane
ND
0.035
0.019
ND
0.16
0.087
0.698
6/14/23 15:06
CMR
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.082
0.698
6/14/23 15:06
CMR
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.081
0.698
6/14/23 15:06
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
0.24
0.698
6/14/23 15:06
CMR
1,4-Dioxane
0.19
0.35
0.029
J
0.70
1.3
0.10
0.698
6/14/23 15:06
CMR
Ethanol
32
4.0
1.8
59
7.5
3.3
2
6/15/23 19:51
CMR
Ethyl Acetate
0.47
0.35
0.18
1.7
1.3
0.64
0.698
6/14/23 15:06
CMR
Ethylbenzene
0.57
0.035
0.020
2.5
0.15
0.088
0.698
6/14/23 15:06
CMR
4-Ethyltoluene
0.057
0.035
0.021
0.28
0.17
0.11
0.698
6/14/23 15:06
CMR
Heptane
0.62
0.035
0.022
2.5
0.14
0.091
0.698
6/14/23 15:06
CMR
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
0.31
0.698
6/14/23 15:06
CMR
Hexane
0.57
1.4
0.18
J
2.0
4.9
0.64
0.698
6/14/23 15:06
CMR
2-Hexanone (MBK)
0.15
0.14
0.017
0.62
0.57
0.071
0.698
6/14/23 15:06
CMR
Isopropanol
3.6
1.4
0.24
8.9
3.4
0.59
0.698
6/14/23 15:06
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
0.097
0.698
6/14/23 15:06
CMR
Methylene Chloride
ND
0.35
0.16
ND
1.2
0.56
0.698
6/14/23 15:06
CMR
4-Methyl-2-pentanone (MIBK)
0.20
0.035
0.019
0.81
0.14
0.076
0.698
6/14/23 15:06
CMR
Naphthalene
0.065
0.035
0.026
V-06, Z-01
0.34
0.18
0.14
0.698
6/14/23 15:06
CMR
Propene
0.96
1.4
0.31
J
1.7
2.4
0.53
0.698
6/14/23 15:06
CMR
Styrene
0.49
0.035
0.018
2.1
0.15
0.078
0.698
6/14/23 15:06
CMR
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/14/23 15:06
CMR
Page 9 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171309
Date Received: 6/9/2023
Sub Description/Location:
Initial Vacuum(in Hg): -29
Field Sample #: IA-2
Canister ID: 1626
Final Vacuum(in Hg): -7
Sample ID: 23F1309-02
Canister Size: 6 liter
Receipt Vacuum(in Hg): -7.3
Sample Matrix: Indoor air
Flow Controller ID: 3508
Flow Controller Type: Fixed -Orifice
Sampled: 6/4/2023 09:03
Sample Type: 24 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual Results
RL
MDL
Dilution
Analyzed
Analyst
Tetrachloroethylene
0.036
0.035
0.027
0.24
0.24
0.18
0.698
6/14/23 15:06
CMR
Tetrahydrofuran
31
1.0
0.16
92
2.9
0.48
2
6/15/23 19:51
CMR
Toluene
5.1
0.035
0.020
19
0.13
0.075
0.698
6/14/23 15:06
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/14/23 15:06
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/14/23 15:06
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/14/23 15:06
CMR
Trichloroethylene
0.028
0.035
0.024
J 0.15
0.19
0.13
0.698
6/14/23 15:06
CMR
Trichlorofluoromethane (Freon 11)
0.21
0.14
0.041
1.2
0.78
0.23
0.698
6/14/23 15:06
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.069
0.14
0.039
J 0.53
1.1
0.30
0.698
6/14/23 15:06
CMR
1,2,4-Trimethylbenzene
0.35
0.035
0.015
1.7
0.17
0.076
0.698
6/14/23 15:06
CMR
1,3,5-Trimethylbenzene
0.080
0.035
0.018
0.39
0.17
0.091
0.698
6/14/23 15:06
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/14/23 15:06
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/14/23 15:06
CMR
m&p-Xylene
2.3
0.070
0.039
9.8
0.30
0.17
0.698
6/14/23 15:06
CMR
o-Xylene
0.88
0.035
0.018
3.8
0.15
0.078
0.698
6/14/23 15:06
CMR
Surrogates
% Recovery
% REC Limits
4-Bromofluorobenzene (1)
98.2
70-130
6/14/23 15:06
4-Bromofluorobenzene (1)
95.8
70-130
6/15/23 19:51
Page 10 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-3
Sample ID: 23F1309-03
Sample Matrix: Indoor air
Sampled: 6/4/2023 09:05
Sample Description/Location:
Sub Description/Location:
Canister ID: 1832
Canister Size: 6 liter
Flow Controller ID: 3510
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -10
Receipt Vacuum(in Hg): -8.4
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual
Results
RL
MDL
Dilution
Analyzed
Analyst
Acetone
52
4.0
2.4
120
9.5
5.7
2
6/15/23 20:17
CMR
Benzene
0.22
0.035
0.026
0.69
0.11
0.084
0.698
6/14/23 15:37
CMR
Benzyl chloride
ND
0.14
0.031
ND
0.72
0.16
0.698
6/14/23 15:37
CMR
Bromodichloromethane
ND
0.035
0.024
ND
0.23
0.16
0.698
6/14/23 15:37
CMR
Bromoform
ND
0.035
0.024
ND
0.36
0.25
0.698
6/14/23 15:37
CMR
Bromomethane
ND
0.035
0.023
ND
0.14
0.090
0.698
6/14/23 15:37
CMR
1,3-Butadiene
ND
0.035
0.029
ND
0.077
0.065
0.698
6/14/23 15:37
CMR
2-Butanone (MEK)
19
1.4
0.37
55
4.1
1.1
0.698
6/14/23 15:37
CMR
Carbon Disulfide
0.57
0.35
0.032
1.8
1.1
0.10
0.698
6/14/23 15:37
CMR
Carbon Tetrachloride
0.080
0.035
0.028
0.50
0.22
0.17
0.698
6/14/23 15:37
CMR
Chlorobenzene
ND
0.035
0.023
ND
0.16
0.11
0.698
6/14/23 15:37
CMR
Chloroethane
0.040
0.035
0.031
0.11
0.092
0.082
0.698
6/14/23 15:37
CMR
Chloroform
0.035
0.035
0.033
0.17
0.17
0.16
0.698
6/14/23 15:37
CMR
Chloromethane
0.62
0.070
0.028
1.3
0.14
0.057
0.698
6/14/23 15:37
CMR
Cyclohexane
0.11
0.035
0.021
0.37
0.12
0.073
0.698
6/14/23 15:37
CMR
Dibromochloromethane
ND
0.035
0.023
ND
0.30
0.20
0.698
6/14/23 15:37
CMR
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
0.16
0.698
6/14/23 15:37
CMR
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
0.12
0.698
6/14/23 15:37
CMR
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
0.12
0.698
6/14/23 15:37
CMR
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
0.14
0.698
6/14/23 15:37
CMR
Dichlorodifluoromethane (Freon 12)
0.52
0.035
0.034
2.6
0.17
0.17
0.698
6/14/23 15:37
CMR
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
0.12
0.698
6/14/23 15:37
CMR
1,2-Dichloroethane
0.045
0.035
0.032
0.18
0.14
0.13
0.698
6/14/23 15:37
CMR
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/14/23 15:37
CMR
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
0.10
0.698
6/14/23 15:37
CMR
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/14/23 15:37
CMR
1,2-Dichloropropane
ND
0.035
0.019
ND
0.16
0.087
0.698
6/14/23 15:37
CMR
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.082
0.698
6/14/23 15:37
CMR
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.081
0.698
6/14/23 15:37
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
0.24
0.698
6/14/23 15:37
CMR
1,4-Dioxane
0.24
0.35
0.029
J
0.86
1.3
0.10
0.698
6/14/23 15:37
CMR
Ethanol
31
4.0
1.8
59
7.5
3.3
2
6/15/23 20:17
CMR
Ethyl Acetate
0.28
0.35
0.18
J
1.00
1.3
0.64
0.698
6/14/23 15:37
CMR
Ethylbenzene
0.57
0.035
0.020
2.5
0.15
0.088
0.698
6/14/23 15:37
CMR
4-Ethyltoluene
0.047
0.035
0.021
0.23
0.17
0.11
0.698
6/14/23 15:37
CMR
Heptane
0.56
0.035
0.022
2.3
0.14
0.091
0.698
6/14/23 15:37
CMR
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
0.31
0.698
6/14/23 15:37
CMR
Hexane
0.57
1.4
0.18
J
2.0
4.9
0.64
0.698
6/14/23 15:37
CMR
2-Hexanone (MBK)
0.12
0.14
0.017
J
0.48
0.57
0.071
0.698
6/14/23 15:37
CMR
Isopropanol
3.5
1.4
0.24
8.7
3.4
0.59
0.698
6/14/23 15:37
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
0.097
0.698
6/14/23 15:37
CMR
Methylene Chloride
ND
0.35
0.16
ND
1.2
0.56
0.698
6/14/23 15:37
CMR
4-Methyl-2-pentanone (MIBK)
0.17
0.035
0.019
0.68
0.14
0.076
0.698
6/14/23 15:37
CMR
Naphthalene
0.045
0.035
0.026
V-06, Z-01
0.23
0.18
0.14
0.698
6/14/23 15:37
CMR
Propene
0.92
1.4
0.31
J
1.6
2.4
0.53
0.698
6/14/23 15:37
CMR
Styrene
0.49
0.035
0.018
2.1
0.15
0.078
0.698
6/14/23 15:37
CMR
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/14/23 15:37
CMR
Page 11 of 102

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-3
Sample ID: 23F1309-03
Sample Matrix: Indoor air
Sampled: 6/4/2023 09:05
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 1832
Canister Size: 6 liter
Flow Controller ID: 3510
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -10
Receipt Vacuum(in Hg): -8.4
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
0.033
0.035
0.027
J 0.22
0.24
0.18
0.698
6/14/23 15:37
CMR
Tetrahydrofuran
30
1.0
0.16
90
2.9
0.48
2
6/15/23 20:17
CMR
Toluene
5.1
0.035
0.020
19
0.13
0.075
0.698
6/14/23 15:37
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/14/23 15:37
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/14/23 15:37
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/14/23 15:37
CMR
Trichloroethylene
0.034
0.035
0.024
J 0.18
0.19
0.13
0.698
6/14/23 15:37
CMR
Trichlorofluoromethane (Freon 11)
0.22
0.14
0.041
1.2
0.78
0.23
0.698
6/14/23 15:37
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.058
0.14
0.039
J 0.44
1.1
0.30
0.698
6/14/23 15:37
CMR
1,2,4-Trimethylbenzene
0.30
0.035
0.015
1.5
0.17
0.076
0.698
6/14/23 15:37
CMR
1,3,5-Trimethylbenzene
0.071
0.035
0.018
0.35
0.17
0.091
0.698
6/14/23 15:37
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/14/23 15:37
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/14/23 15:37
CMR
m&p-Xylene
2.3
0.070
0.039
10
0.30
0.17
0.698
6/14/23 15:37
CMR
o-Xylene
0.90
0.035
0.018
3.9
0.15
0.078
0.698
6/14/23 15:37
CMR
Surrogates
4-Bromofluorobenzene (1)
4-Bromofluorobenzene (1)
% Recovery
% REC Limits
99.8 70-130
95.6 70-130
6/14/23 15:37
6/15/23 20:17
Page 12 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-5
Canister ID: 2229
Sample ID: 23F1309-04
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3484
Sampled: 6/4/2023 09:13
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -29.5
Final Vacuum(in Hg): -8
Receipt Vacuum(in Hg): -7.7
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Acetone
120
1.4
0.84
E
290
3.3
Benzene
0.24
0.035
0.026
0.78
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
ND
0.035
0.023
ND
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
18
1.4
0.37
53
4.1
Carbon Disulfide
0.90
0.35
0.032
2.8
1.1
Carbon Tetrachloride
0.084
0.035
0.028
0.53
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
ND
0.035
0.031
ND
0.092
Chloroform
0.10
0.035
0.033
0.51
0.17
Chloromethane
0.60
0.070
0.028
1.2
0.14
Cyclohexane
0.15
0.035
0.021
0.51
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.54
0.035
0.034
2.7
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
0.071
0.035
0.032
0.29
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropane
0.037
0.035
0.019
0.17
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
ND
0.35
0.029
ND
1.3
Ethanol
44
1.4
0.62
E
83
2.6
Ethyl Acetate
0.63
0.35
0.18
2.3
1.3
Ethylbenzene
0.92
0.035
0.020
4.0
0.15
4-Ethyltoluene
0.073
0.035
0.021
0.36
0.17
Heptane
6.3
0.035
0.022
26
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
0.59
1.4
0.18
J
2.1
4.9
2-Hexanone (MBK)
0.28
0.14
0.017
1.1
0.57
Isopropanol
4.8
1.4
0.24
12
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
ND
0.035
0.019
ND
0.14
Naphthalene
0.083
0.035
0.026
V-06, Z-01
0.44
0.18
Propene
1.3
1.4
0.31
J
2.2
2.4
Styrene
1.3
0.035
0.018
5.4
0.15
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
2.0
0.698
6/14/23 16:08
CMR
0.084
0.698
6/14/23 16:08
CMR
0.16
0.698
6/14/23 16:08
CMR
0.16
0.698
6/14/23 16:08
CMR
0.25
0.698
6/14/23 16:08
CMR
0.090
0.698
6/14/23 16:08
CMR
0.065
0.698
6/14/23 16:08
CMR
1.1
0.698
6/14/23 16:08
CMR
0.10
0.698
6/14/23 16:08
CMR
0.17
0.698
6/14/23 16:08
CMR
0.11
0.698
6/14/23 16:08
CMR
0.082
0.698
6/14/23 16:08
CMR
0.16
0.698
6/14/23 16:08
CMR
0.057
0.698
6/14/23 16:08
CMR
0.073
0.698
6/14/23 16:08
CMR
0.20
0.698
6/14/23 16:08
CMR
0.16
0.698
6/14/23 16:08
CMR
0.12
0.698
6/14/23 16:08
CMR
0.12
0.698
6/14/23 16:08
CMR
0.14
0.698
6/14/23 16:08
CMR
0.17
0.698
6/14/23 16:08
CMR
0.12
0.698
6/14/23 16:08
CMR
0.13
0.698
6/14/23 16:08
CMR
0.11
0.698
6/14/23 16:08
CMR
0.10
0.698
6/14/23 16:08
CMR
0.11
0.698
6/14/23 16:08
CMR
0.087
0.698
6/14/23 16:08
CMR
0.082
0.698
6/14/23 16:08
CMR
0.081
0.698
6/14/23 16:08
CMR
0.24
0.698
6/14/23 16:08
CMR
0.10
0.698
6/14/23 16:08
CMR
1.2
0.698
6/14/23 16:08
CMR
0.64
0.698
6/14/23 16:08
CMR
0.088
0.698
6/14/23 16:08
CMR
0.11
0.698
6/14/23 16:08
CMR
0.091
0.698
6/14/23 16:08
CMR
0.31
0.698
6/14/23 16:08
CMR
0.64
0.698
6/14/23 16:08
CMR
0.071
0.698
6/14/23 16:08
CMR
0.59
0.698
6/14/23 16:08
CMR
0.097
0.698
6/14/23 16:08
CMR
0.56
0.698
6/14/23 16:08
CMR
0.076
0.698
6/14/23 16:08
CMR
0.14
0.698
6/14/23 16:08
CMR
0.53
0.698
6/14/23 16:08
CMR
0.078
0.698
6/14/23 16:08
CMR
0.13
0.698
6/14/23 16:08
CMR
Page 13 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171309
Date Received: 6/9/2023
Sub Description/Location:
Initial Vacuum(in Hg): -29.5
Field Sample #: IA-5
Canister ID: 2229
Final Vacuum(in Hg): -8
Sample ID: 23F1309-04
Canister Size: 6 liter
Receipt Vacuum(in Hg): -7.7
Sample Matrix: Indoor air
Flow Controller ID: 3484
Flow Controller Type: Fixed -Orifice
Sampled: 6/4/2023 09:13
Sample Type: 24 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
0.044
0.035
0.027
0.30
0.24
0.18
0.698
6/14/23 16:08
CMR
Tetrahydrofuran
25
0.35
0.057
74
1.0
0.17
0.698
6/14/23 16:08
CMR
Toluene
17
0.035
0.020
63
0.13
0.075
0.698
6/14/23 16:08
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/14/23 16:08
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/14/23 16:08
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/14/23 16:08
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/14/23 16:08
CMR
Trichlorofluoromethane (Freon 11)
0.21
0.14
0.041
1.2
0.78
0.23
0.698
6/14/23 16:08
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.063
0.14
0.039
J 0.48
1.1
0.30
0.698
6/14/23 16:08
CMR
1,2,4-Trimethylbenzene
0.55
0.035
0.015
2.7
0.17
0.076
0.698
6/14/23 16:08
CMR
1,3,5-Trimethylbenzene
0.13
0.035
0.018
0.66
0.17
0.091
0.698
6/14/23 16:08
CMR
Vinyl Acetate
2.0
0.70
0.19
7.0
2.5
0.66
0.698
6/14/23 16:08
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/14/23 16:08
CMR
m&p-Xylene
3.8
0.070
0.039
16
0.30
0.17
0.698
6/14/23 16:08
CMR
o-Xylene
1.4
0.035
0.018
6.0
0.15
0.078
0.698
6/14/23 16:08
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 101 70-130 6/14/23 16:08
Page 14 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-6
Canister ID: 1867
Sample ID: 23F1309-05
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3506
Sampled: 6/4/2023 09:14
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -30.5
Final Vacuum(in Hg): -8.5
Receipt Vacuum(in Hg): -7.3
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Acetone
120
1.4
0.84
E
290
3.3
Benzene
0.24
0.035
0.026
0.77
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
ND
0.035
0.023
ND
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
16
1.4
0.37
48
4.1
Carbon Disulfide
0.91
0.35
0.032
2.8
1.1
Carbon Tetrachloride
0.084
0.035
0.028
0.53
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
ND
0.035
0.031
ND
0.092
Chloroform
0.059
0.035
0.033
0.29
0.17
Chloromethane
0.60
0.070
0.028
1.2
0.14
Cyclohexane
0.37
0.035
0.021
1.3
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.54
0.035
0.034
2.7
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
0.077
0.035
0.032
0.31
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropane
0.035
0.035
0.019
0.16
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
ND
0.35
0.029
ND
1.3
Ethanol
44
1.4
0.62
E
82
2.6
Ethyl Acetate
0.62
0.35
0.18
2.2
1.3
Ethylbenzene
0.94
0.035
0.020
4.1
0.15
4-Ethyltoluene
0.089
0.035
0.021
0.44
0.17
Heptane
6.6
0.035
0.022
27
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
0.47
1.4
0.18
J
1.6
4.9
2-Hexanone (MBK)
0.18
0.14
0.017
0.73
0.57
Isopropanol
4.9
1.4
0.24
12
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
ND
0.035
0.019
ND
0.14
Naphthalene
0.12
0.035
0.026
V-06, Z-01
0.61
0.18
Propene
1.2
1.4
0.31
J
2.1
2.4
Styrene
1.3
0.035
0.018
5.6
0.15
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
2.0
0.698
6/14/23 16:40
CMR
0.084
0.698
6/14/23 16:40
CMR
0.16
0.698
6/14/23 16:40
CMR
0.16
0.698
6/14/23 16:40
CMR
0.25
0.698
6/14/23 16:40
CMR
0.090
0.698
6/14/23 16:40
CMR
0.065
0.698
6/14/23 16:40
CMR
1.1
0.698
6/14/23 16:40
CMR
0.10
0.698
6/14/23 16:40
CMR
0.17
0.698
6/14/23 16:40
CMR
0.11
0.698
6/14/23 16:40
CMR
0.082
0.698
6/14/23 16:40
CMR
0.16
0.698
6/14/23 16:40
CMR
0.057
0.698
6/14/23 16:40
CMR
0.073
0.698
6/14/23 16:40
CMR
0.20
0.698
6/14/23 16:40
CMR
0.16
0.698
6/14/23 16:40
CMR
0.12
0.698
6/14/23 16:40
CMR
0.12
0.698
6/14/23 16:40
CMR
0.14
0.698
6/14/23 16:40
CMR
0.17
0.698
6/14/23 16:40
CMR
0.12
0.698
6/14/23 16:40
CMR
0.13
0.698
6/14/23 16:40
CMR
0.11
0.698
6/14/23 16:40
CMR
0.10
0.698
6/14/23 16:40
CMR
0.11
0.698
6/14/23 16:40
CMR
0.087
0.698
6/14/23 16:40
CMR
0.082
0.698
6/14/23 16:40
CMR
0.081
0.698
6/14/23 16:40
CMR
0.24
0.698
6/14/23 16:40
CMR
0.10
0.698
6/14/23 16:40
CMR
1.2
0.698
6/14/23 16:40
CMR
0.64
0.698
6/14/23 16:40
CMR
0.088
0.698
6/14/23 16:40
CMR
0.11
0.698
6/14/23 16:40
CMR
0.091
0.698
6/14/23 16:40
CMR
0.31
0.698
6/14/23 16:40
CMR
0.64
0.698
6/14/23 16:40
CMR
0.071
0.698
6/14/23 16:40
CMR
0.59
0.698
6/14/23 16:40
CMR
0.097
0.698
6/14/23 16:40
CMR
0.56
0.698
6/14/23 16:40
CMR
0.076
0.698
6/14/23 16:40
CMR
0.14
0.698
6/14/23 16:40
CMR
0.53
0.698
6/14/23 16:40
CMR
0.078
0.698
6/14/23 16:40
CMR
0.13
0.698
6/14/23 16:40
CMR
Page 15 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171309
Date Received: 6/9/2023
Sub Description/Location:
Initial Vacuum(in Hg): -30.5
Field Sample #: IA-6
Canister ID: 1867
Final Vacuum(in Hg): -8.5
Sample ID: 23F1309-05
Canister Size: 6 liter
Receipt Vacuum(in Hg): -7.3
Sample Matrix: Indoor air
Flow Controller ID: 3506
Flow Controller Type: Fixed -Orifice
Sampled: 6/4/2023 09:14
Sample Type: 24 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
0.045
0.035
0.027
0.30
0.24
0.18
0.698
6/14/23 16:40
CMR
Tetrahydrofuran
25
0.35
0.057
74
1.0
0.17
0.698
6/14/23 16:40
CMR
Toluene
17
0.035
0.020
64
0.13
0.075
0.698
6/14/23 16:40
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/14/23 16:40
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/14/23 16:40
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/14/23 16:40
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/14/23 16:40
CMR
Trichlorofluoromethane (Freon 11)
0.22
0.14
0.041
1.2
0.78
0.23
0.698
6/14/23 16:40
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.066
0.14
0.039
J 0.51
1.1
0.30
0.698
6/14/23 16:40
CMR
1,2,4-Trimethylbenzene
0.58
0.035
0.015
2.9
0.17
0.076
0.698
6/14/23 16:40
CMR
1,3,5-Trimethylbenzene
0.14
0.035
0.018
0.69
0.17
0.091
0.698
6/14/23 16:40
CMR
Vinyl Acetate
1.9
0.70
0.19
6.7
2.5
0.66
0.698
6/14/23 16:40
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/14/23 16:40
CMR
m&p-Xylene
3.7
0.070
0.039
16
0.30
0.17
0.698
6/14/23 16:40
CMR
o-Xylene
1.4
0.035
0.018
6.0
0.15
0.078
0.698
6/14/23 16:40
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 98.4 70-130 6/14/23 16:40
Page 16 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-7
Canister ID: 1815
Sample ID: 23F1309-06
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3731
Sampled: 6/4/2023 09:18
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -9
Receipt Vacuum(in Hg): -8.7
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Acetone
120
1.4
0.84
E
290
3.3
Benzene
0.24
0.035
0.026
0.76
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
0.024
0.035
0.023
J
0.092
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
16
1.4
0.37
47
4.1
Carbon Disulfide
0.93
0.35
0.032
2.9
1.1
Carbon Tetrachloride
0.080
0.035
0.028
0.50
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
0.032
0.035
0.031
J
0.085
0.092
Chloroform
0.065
0.035
0.033
0.32
0.17
Chloromethane
0.64
0.070
0.028
1.3
0.14
Cyclohexane
0.15
0.035
0.021
0.50
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.56
0.035
0.034
2.8
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
0.071
0.035
0.032
0.29
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropene
0.038
0.035
0.019
0.17
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
ND
0.35
0.029
ND
1.3
Ethanol
42
1.4
0.62
E
79
2.6
Ethyl Acetate
0.46
0.35
0.18
1.7
1.3
Ethylbenzene
0.94
0.035
0.020
4.1
0.15
4-Ethyltoluene
0.087
0.035
0.021
0.43
0.17
Heptane
6.3
0.035
0.022
26
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
0.50
1.4
0.18
J
1.8
4.9
2-Hexanone (MBK)
0.15
0.14
0.017
0.63
0.57
Isopropanol
4.6
1.4
0.24
11
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
ND
0.035
0.019
ND
0.14
Naphthalene
0.091
0.035
0.026
V-06, Z-01
0.48
0.18
Propene
ND
1.4
0.31
ND
2.4
Styrene
1.4
0.035
0.018
5.8
0.15
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
2.0
0.698
6/14/23 17:11
CMR
0.084
0.698
6/14/23 17:11
CMR
0.16
0.698
6/14/23 17:11
CMR
0.16
0.698
6/14/23 17:11
CMR
0.25
0.698
6/14/23 17:11
CMR
0.090
0.698
6/14/23 17:11
CMR
0.065
0.698
6/14/23 17:11
CMR
1.1
0.698
6/14/23 17:11
CMR
0.10
0.698
6/14/23 17:11
CMR
0.17
0.698
6/14/23 17:11
CMR
0.11
0.698
6/14/23 17:11
CMR
0.082
0.698
6/14/23 17:11
CMR
0.16
0.698
6/14/23 17:11
CMR
0.057
0.698
6/14/23 17:11
CMR
0.073
0.698
6/14/23 17:11
CMR
0.20
0.698
6/14/23 17:11
CMR
0.16
0.698
6/14/23 17:11
CMR
0.12
0.698
6/14/23 17:11
CMR
0.12
0.698
6/14/23 17:11
CMR
0.14
0.698
6/14/23 17:11
CMR
0.17
0.698
6/14/23 17:11
CMR
0.12
0.698
6/14/23 17:11
CMR
0.13
0.698
6/14/23 17:11
CMR
0.11
0.698
6/14/23 17:11
CMR
0.10
0.698
6/14/23 17:11
CMR
0.11
0.698
6/14/23 17:11
CMR
0.087
0.698
6/14/23 17:11
CMR
0.082
0.698
6/14/23 17:11
CMR
0.081
0.698
6/14/23 17:11
CMR
0.24
0.698
6/14/23 17:11
CMR
0.10
0.698
6/14/23 17:11
CMR
1.2
0.698
6/14/23 17:11
CMR
0.64
0.698
6/14/23 17:11
CMR
0.088
0.698
6/14/23 17:11
CMR
0.11
0.698
6/14/23 17:11
CMR
0.091
0.698
6/14/23 17:11
CMR
0.31
0.698
6/14/23 17:11
CMR
0.64
0.698
6/14/23 17:11
CMR
0.071
0.698
6/14/23 17:11
CMR
0.59
0.698
6/14/23 17:11
CMR
0.097
0.698
6/14/23 17:11
CMR
0.56
0.698
6/14/23 17:11
CMR
0.076
0.698
6/14/23 17:11
CMR
0.14
0.698
6/14/23 17:11
CMR
0.53
0.698
6/14/23 17:11
CMR
0.078
0.698
6/14/23 17:11
CMR
0.13
0.698
6/14/23 17:11
CMR
Page 17 of 102

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-7
Sample ID: 23F1309-06
Sample Matrix: Indoor air
Sampled: 6/4/2023 09:18
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 1815
Canister Size: 6 liter
Flow Controller ID: 3731
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -9
Receipt Vacuum(in Hg): -8.7
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
0.040
0.035
0.027
0.27
0.24
0.18
0.698
6/14/23 17:11
CMR
Tetrahydrofuran
27
0.35
0.057
79
1.0
0.17
0.698
6/14/23 17:11
CMR
Toluene
16
0.035
0.020
62
0.13
0.075
0.698
6/14/23 17:11
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/14/23 17:11
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/14/23 17:11
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/14/23 17:11
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/14/23 17:11
CMR
Trichlorofluoromethane (Freon 11)
0.21
0.14
0.041
1.2
0.78
0.23
0.698
6/14/23 17:11
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.066
0.14
0.039
J 0.51
1.1
0.30
0.698
6/14/23 17:11
CMR
1,2,4-Trimethylbenzene
0.57
0.035
0.015
2.8
0.17
0.076
0.698
6/14/23 17:11
CMR
1,3,5-Trimethylbenzene
0.13
0.035
0.018
0.66
0.17
0.091
0.698
6/14/23 17:11
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/14/23 17:11
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/14/23 17:11
CMR
m&p-Xylene
3.7
0.070
0.039
16
0.30
0.17
0.698
6/14/23 17:11
CMR
o-Xylene
1.4
0.035
0.018
6.0
0.15
0.078
0.698
6/14/23 17:11
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
101
% REC Limits
70-130
6/14/23 17:11
Page 18 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-7 DUP
Sample ID: 23F1309-07
Sample Matrix: Indoor air
Sampled: 6/4/2023 09:18
Sample Description/Location:
Sub Description/Location:
Canister ID: 1809
Canister Size: 6 liter
Flow Controller ID: 3732
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -10.5
Receipt Vacuum(in Hg): -10.3
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual
Results
RL
MDL
Dilution
Analyzed
Analyst
Acetone
120
1.4
0.84
E
290
3.3
2.0
0.696
6/14/23 17:44
CMR
Benzene
0.19
0.035
0.026
0.59
0.11
0.084
0.696
6/14/23 17:44
CMR
Benzyl chloride
ND
0.14
0.031
ND
0.72
0.16
0.696
6/14/23 17:44
CMR
Bromodichloromethane
ND
0.035
0.024
ND
0.23
0.16
0.696
6/14/23 17:44
CMR
Bromoform
ND
0.035
0.024
ND
0.36
0.24
0.696
6/14/23 17:44
CMR
Bromomethane
ND
0.035
0.023
ND
0.14
0.090
0.696
6/14/23 17:44
CMR
1,3-Butadiene
ND
0.035
0.029
ND
0.077
0.065
0.696
6/14/23 17:44
CMR
2-Butanone (MEK)
12
1.4
0.37
34
4.1
1.1
0.696
6/14/23 17:44
CMR
Carbon Disulfide
0.24
0.35
0.032
J
0.75
1.1
0.10
0.696
6/14/23 17:44
CMR
Carbon Tetrachloride
0.091
0.035
0.028
0.57
0.22
0.17
0.696
6/14/23 17:44
CMR
Chlorobenzene
ND
0.035
0.023
ND
0.16
0.11
0.696
6/14/23 17:44
CMR
Chloroethane
ND
0.035
0.031
ND
0.092
0.081
0.696
6/14/23 17:44
CMR
Chloroform
0.039
0.035
0.033
0.19
0.17
0.16
0.696
6/14/23 17:44
CMR
Chloromethane
0.63
0.070
0.028
1.3
0.14
0.057
0.696
6/14/23 17:44
CMR
Cyclohexane
0.074
0.035
0.021
0.26
0.12
0.072
0.696
6/14/23 17:44
CMR
Dibromochloromethane
ND
0.035
0.023
ND
0.30
0.20
0.696
6/14/23 17:44
CMR
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
0.16
0.696
6/14/23 17:44
CMR
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
0.12
0.696
6/14/23 17:44
CMR
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
0.12
0.696
6/14/23 17:44
CMR
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
0.14
0.696
6/14/23 17:44
CMR
Dichlorodifluoromethane (Freon 12)
0.60
0.035
0.034
3.0
0.17
0.17
0.696
6/14/23 17:44
CMR
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
0.12
0.696
6/14/23 17:44
CMR
1,2-Dichloroethane
0.040
0.035
0.032
0.16
0.14
0.13
0.696
6/14/23 17:44
CMR
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.696
6/14/23 17:44
CMR
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
0.10
0.696
6/14/23 17:44
CMR
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.696
6/14/23 17:44
CMR
1,2-Dichloropropane
0.023
0.035
0.019
J
0.11
0.16
0.087
0.696
6/14/23 17:44
CMR
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.082
0.696
6/14/23 17:44
CMR
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.081
0.696
6/14/23 17:44
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
0.24
0.696
6/14/23 17:44
CMR
1,4-Dioxane
ND
0.35
0.029
ND
1.3
0.10
0.696
6/14/23 17:44
CMR
Ethanol
19
1.4
0.61
37
2.6
1.2
0.696
6/14/23 17:44
CMR
Ethyl Acetate
0.24
0.35
0.18
J
0.88
1.3
0.63
0.696
6/14/23 17:44
CMR
Ethylbenzene
0.55
0.035
0.020
2.4
0.15
0.088
0.696
6/14/23 17:44
CMR
4-Ethyltoluene
0.044
0.035
0.021
0.22
0.17
0.11
0.696
6/14/23 17:44
CMR
Heptane
7.3
0.035
0.022
30
0.14
0.091
0.696
6/14/23 17:44
CMR
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
0.31
0.696
6/14/23 17:44
CMR
Hexane
0.23
1.4
0.18
J
0.80
4.9
0.64
0.696
6/14/23 17:44
CMR
2-Hexanone (MBK)
0.071
0.14
0.017
J
0.29
0.57
0.071
0.696
6/14/23 17:44
CMR
Isopropanol
2.1
1.4
0.24
5.3
3.4
0.59
0.696
6/14/23 17:44
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
0.097
0.696
6/14/23 17:44
CMR
Methylene Chloride
ND
0.35
0.16
ND
1.2
0.56
0.696
6/14/23 17:44
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.035
0.019
ND
0.14
0.076
0.696
6/14/23 17:44
CMR
Naphthalene
0.045
0.035
0.026
V-06, Z-01
0.23
0.18
0.14
0.696
6/14/23 17:44
CMR
Propene
ND
1.4
0.31
ND
2.4
0.53
0.696
6/14/23 17:44
CMR
Styrene
1.4
0.035
0.018
5.9
0.15
0.078
0.696
6/14/23 17:44
CMR
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.696
6/14/23 17:44
CMR
Page 19 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171309
Date Received: 6/9/2023
Sub Description/Location:
Initial Vacuum(in Hg): -29
Field Sample #: IA-7 DUP
Canister ID: 1809
Final Vacuum(in Hg): -10.5
Sample ID: 23F1309-07
Canister Size: 6 liter
Receipt Vacuum(in Hg): -10.3
Sample Matrix: Indoor air
Flow Controller ID: 3732
Flow Controller Type: Fixed -Orifice
Sampled: 6/4/2023 09:18
Sample Type: 24 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.696
6/14/23 17:44
CMR
Tetrahydrofuran
34
0.35
0.057
100
1.0
0.17
0.696
6/14/23 17:44
CMR
Toluene
15
0.035
0.020
56
0.13
0.075
0.696
6/14/23 17:44
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.696
6/14/23 17:44
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.696
6/14/23 17:44
CMR
1,1,2-Trichloroethane
ND
0.035
0.024
ND
0.19
0.13
0.696
6/14/23 17:44
CMR
Trichloroethylene
ND
0.035
0.023
ND
0.19
0.13
0.696
6/14/23 17:44
CMR
Trichlorofluoromethane (Freon 11)
0.25
0.14
0.041
1.4
0.78
0.23
0.696
6/14/23 17:44
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.077
0.14
0.039
J 0.59
1.1
0.30
0.696
6/14/23 17:44
CMR
1,2,4-Trimethylbenzene
0.29
0.035
0.015
1.4
0.17
0.076
0.696
6/14/23 17:44
CMR
1,3,5-Trimethylbenzene
0.065
0.035
0.018
0.32
0.17
0.090
0.696
6/14/23 17:44
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.696
6/14/23 17:44
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.696
6/14/23 17:44
CMR
m&p-Xylene
2.2
0.070
0.039
9.4
0.30
0.17
0.696
6/14/23 17:44
CMR
o-Xylene
0.80
0.035
0.018
3.5
0.15
0.077
0.696
6/14/23 17:44
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 98.6 70-130 6/14/23 17:44
Page 20 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-9
Canister ID: 1449
Sample ID: 23F1309-08
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3712
Sampled: 6/4/2023 09:33
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -28.5
Final Vacuum(in Hg): -10
Receipt Vacuum(in Hg): -9.3
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RI MDL Dilution Analyzed Analyst
Acetone
110
1.4
0.84
E
260
3.3
Benzene
0.15
0.035
0.026
0.49
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
ND
0.035
0.023
ND
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
9.9
1.4
0.37
29
4.1
Carbon Disulfide
0.21
0.35
0.032
J
0.65
1.1
Carbon Tetrachloride
0.077
0.035
0.028
0.49
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
ND
0.035
0.031
ND
0.092
Chloroform
ND
0.035
0.033
ND
0.17
Chloromethane
0.59
0.070
0.028
1.2
0.14
Cyclohexane
0.065
0.035
0.021
0.22
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.52
0.035
0.034
2.6
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
0.039
0.035
0.032
0.16
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropane
0.022
0.035
0.019
J
0.10
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
ND
0.35
0.029
ND
1.3
Ethanol
17
1.4
0.62
32
2.6
Ethyl Acetate
0.26
0.35
0.18
J
0.94
1.3
Ethylbenzene
0.46
0.035
0.020
2.0
0.15
4-Ethyltoluene
0.036
0.035
0.021
0.17
0.17
Heptane
6.3
0.035
0.022
26
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
ND
1.4
0.18
ND
4.9
2-Hexanone (MBK)
0.050
0.14
0.017
J
0.20
0.57
Isopropanol
1.8
1.4
0.24
4.5
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
ND
0.035
0.019
ND
0.14
Naphthalene
0.034
0.035
0.026
V-06, Z-01, J
0.18
0.18
Propene
0.63
1.4
0.31
J
1.1
2.4
Styrene
1.2
0.035
0.018
5.1
0.15
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
2.0
0.698
6/14/23 18:16
CMR
0.084
0.698
6/14/23 18:16
CMR
0.16
0.698
6/14/23 18:16
CMR
0.16
0.698
6/14/23 18:16
CMR
0.25
0.698
6/14/23 18:16
CMR
0.090
0.698
6/14/23 18:16
CMR
0.065
0.698
6/14/23 18:16
CMR
1.1
0.698
6/14/23 18:16
CMR
0.10
0.698
6/14/23 18:16
CMR
0.17
0.698
6/14/23 18:16
CMR
0.11
0.698
6/14/23 18:16
CMR
0.082
0.698
6/14/23 18:16
CMR
0.16
0.698
6/14/23 18:16
CMR
0.057
0.698
6/14/23 18:16
CMR
0.073
0.698
6/14/23 18:16
CMR
0.20
0.698
6/14/23 18:16
CMR
0.16
0.698
6/14/23 18:16
CMR
0.12
0.698
6/14/23 18:16
CMR
0.12
0.698
6/14/23 18:16
CMR
0.14
0.698
6/14/23 18:16
CMR
0.17
0.698
6/14/23 18:16
CMR
0.12
0.698
6/14/23 18:16
CMR
0.13
0.698
6/14/23 18:16
CMR
0.11
0.698
6/14/23 18:16
CMR
0.10
0.698
6/14/23 18:16
CMR
0.11
0.698
6/14/23 18:16
CMR
0.087
0.698
6/14/23 18:16
CMR
0.082
0.698
6/14/23 18:16
CMR
0.081
0.698
6/14/23 18:16
CMR
0.24
0.698
6/14/23 18:16
CMR
0.10
0.698
6/14/23 18:16
CMR
1.2
0.698
6/14/23 18:16
CMR
0.64
0.698
6/14/23 18:16
CMR
0.088
0.698
6/14/23 18:16
CMR
0.11
0.698
6/14/23 18:16
CMR
0.091
0.698
6/14/23 18:16
CMR
0.31
0.698
6/14/23 18:16
CMR
0.64
0.698
6/14/23 18:16
CMR
0.071
0.698
6/14/23 18:16
CMR
0.59
0.698
6/14/23 18:16
CMR
0.097
0.698
6/14/23 18:16
CMR
0.56
0.698
6/14/23 18:16
CMR
0.076
0.698
6/14/23 18:16
CMR
0.14
0.698
6/14/23 18:16
CMR
0.53
0.698
6/14/23 18:16
CMR
0.078
0.698
6/14/23 18:16
CMR
0.13
0.698
6/14/23 18:16
CMR
Page 21 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171309
Date Received: 6/9/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28.5
Field Sample #: IA-9
Canister ID: 1449
Final Vacuum(in Hg): -10
Sample ID: 23F1309-08
Canister Size: 6 liter
Receipt Vacuum(in Hg): -9.3
Sample Matrix: Indoor air
Flow Controller ID: 3712
Flow Controller Type: Fixed -Orifice
Sampled: 6/4/2023 09:33
Sample Type: 24 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/14/23 18:16
CMR
Tetrahydrofuran
30
0.35
0.057
87
1.0
0.17
0.698
6/14/23 18:16
CMR
Toluene
13
0.035
0.020
48
0.13
0.075
0.698
6/14/23 18:16
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/14/23 18:16
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/14/23 18:16
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/14/23 18:16
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/14/23 18:16
CMR
Trichlorofluoromethane (Freon 11)
0.22
0.14
0.041
1.2
0.78
0.23
0.698
6/14/23 18:16
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.062
0.14
0.039
J 0.48
1.1
0.30
0.698
6/14/23 18:16
CMR
1,2,4-Trimethylbenzene
0.24
0.035
0.015
1.2
0.17
0.076
0.698
6/14/23 18:16
CMR
1,3,5-Trimethylbenzene
0.056
0.035
0.018
0.27
0.17
0.091
0.698
6/14/23 18:16
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/14/23 18:16
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/14/23 18:16
CMR
m&p-Xylene
1.8
0.070
0.039
8.0
0.30
0.17
0.698
6/14/23 18:16
CMR
o-Xylene
0.67
0.035
0.018
2.9
0.15
0.078
0.698
6/14/23 18:16
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 98.8 70-130 6/14/23 18:16
Page 22 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-10
Canister ID: 1964
Sample ID: 23F1309-09
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3744
Sampled: 6/4/2023 09:39
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -29.5
Final Vacuum(in Hg): -8.25
Receipt Vacuum(in Hg): -8.4
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Acetone
140
4.0
2.4
E 340
9.5
Benzene
0.24
0.035
0.026
0.75
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
ND
0.035
0.023
ND
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
16
1.4
0.37
47
4.1
Carbon Disulfide
0.38
0.35
0.032
1.2
1.1
Carbon Tetrachloride
0.083
0.035
0.028
0.52
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
0.16
0.035
0.031
0.42
0.092
Chloroform
0.050
0.035
0.033
0.24
0.17
Chloromethane
0.53
0.070
0.028
1.1
0.14
Cyclohexane
0.35
0.035
0.021
1.2
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.57
0.035
0.034
2.8
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
0.059
0.035
0.032
0.24
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropene
0.062
0.035
0.019
0.29
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
0.35
0.35
0.029
1.3
1.3
Ethanol
35
4.0
1.8
67
7.5
Ethyl Acetate
0.57
0.35
0.18
2.0
1.3
Ethylbenzene
1.2
0.035
0.020
5.4
0.15
4-Ethyltoluene
0.10
0.035
0.021
0.49
0.17
Heptane
1.5
0.035
0.022
6.2
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
2.5
1.4
0.18
8.7
4.9
2-Hexanone (MBK)
0.15
0.14
0.017
0.63
0.57
Isopropanol
2.7
1.4
0.24
6.6
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
0.31
0.035
0.019
1.3
0.14
Naphthalene
0.080
0.035
0.026
V-06, Z-01 0.42
0.18
Propene
1.3
1.4
0.31
J 2.3
2.4
Styrene
0.93
0.035
0.018
4.0
0.15
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
5.7
2
6/15/23 20:44
CMR
0.084
0.698
6/14/23 18:48
CMR
0.16
0.698
6/14/23 18:48
CMR
0.16
0.698
6/14/23 18:48
CMR
0.25
0.698
6/14/23 18:48
CMR
0.090
0.698
6/14/23 18:48
CMR
0.065
0.698
6/14/23 18:48
CMR
1.1
0.698
6/14/23 18:48
CMR
0.10
0.698
6/14/23 18:48
CMR
0.17
0.698
6/14/23 18:48
CMR
0.11
0.698
6/14/23 18:48
CMR
0.082
0.698
6/14/23 18:48
CMR
0.16
0.698
6/14/23 18:48
CMR
0.057
0.698
6/14/23 18:48
CMR
0.073
0.698
6/14/23 18:48
CMR
0.20
0.698
6/14/23 18:48
CMR
0.16
0.698
6/14/23 18:48
CMR
0.12
0.698
6/14/23 18:48
CMR
0.12
0.698
6/14/23 18:48
CMR
0.14
0.698
6/14/23 18:48
CMR
0.17
0.698
6/14/23 18:48
CMR
0.12
0.698
6/14/23 18:48
CMR
0.13
0.698
6/14/23 18:48
CMR
0.11
0.698
6/14/23 18:48
CMR
0.10
0.698
6/14/23 18:48
CMR
0.11
0.698
6/14/23 18:48
CMR
0.087
0.698
6/14/23 18:48
CMR
0.082
0.698
6/14/23 18:48
CMR
0.081
0.698
6/14/23 18:48
CMR
0.24
0.698
6/14/23 18:48
CMR
0.10
0.698
6/14/23 18:48
CMR
3.3
2
6/15/23 20:44
CMR
0.64
0.698
6/14/23 18:48
CMR
0.088
0.698
6/14/23 18:48
CMR
0.11
0.698
6/14/23 18:48
CMR
0.091
0.698
6/14/23 18:48
CMR
0.31
0.698
6/14/23 18:48
CMR
0.64
0.698
6/14/23 18:48
CMR
0.071
0.698
6/14/23 18:48
CMR
0.59
0.698
6/14/23 18:48
CMR
0.097
0.698
6/14/23 18:48
CMR
0.56
0.698
6/14/23 18:48
CMR
0.076
0.698
6/14/23 18:48
CMR
0.14
0.698
6/14/23 18:48
CMR
0.53
0.698
6/14/23 18:48
CMR
0.078
0.698
6/14/23 18:48
CMR
0.13
0.698
6/14/23 18:48
CMR
Page 23 of 102

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-10
Sample ID: 23F1309-09
Sample Matrix: Indoor air
Sampled: 6/4/2023 09:39
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 1964
Canister Size: 6 liter
Flow Controller ID: 3744
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -29.5
Final Vacuum(in Hg): -8.25
Receipt Vacuum(in Hg): -8.4
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/14/23 18:48
CMR
Tetrahydrofuran
34
1.0
0.16
100
2.9
0.48
2
6/15/23 20:44
CMR
Toluene
32
0.035
0.020
120
0.13
0.075
0.698
6/14/23 18:48
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/14/23 18:48
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/14/23 18:48
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/14/23 18:48
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/14/23 18:48
CMR
Trichlorofluoromethane (Freon 11)
0.21
0.14
0.041
1.2
0.78
0.23
0.698
6/14/23 18:48
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.064
0.14
0.039
J 0.49
1.1
0.30
0.698
6/14/23 18:48
CMR
1,2,4-Trimethylbenzene
0.64
0.035
0.015
3.2
0.17
0.076
0.698
6/14/23 18:48
CMR
1,3,5-Trimethylbenzene
0.16
0.035
0.018
0.80
0.17
0.091
0.698
6/14/23 18:48
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/14/23 18:48
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/14/23 18:48
CMR
m&p-Xylene
5.0
0.070
0.039
22
0.30
0.17
0.698
6/14/23 18:48
CMR
o-Xylene
1.7
0.035
0.018
7.4
0.15
0.078
0.698
6/14/23 18:48
CMR
Surrogates
4-Bromofluorobenzene (1)
4-Bromofluorobenzene (1)
% Recovery
% REC Limits
102 70-130
96.0 70-130
6/14/23 18:48
6/15/23 20:44
Page 24 of 1 2

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-11
Sample ID: 23F1309-10
Sample Matrix: Indoor air
Sampled: 6/4/2023 09:41
Sample Description/Location:
Sub Description/Location:
Canister ID: 1878
Canister Size: 6 liter
Flow Controller ID: 3743
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -10.25
Receipt Vacuum(in Hg): -9.9
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual
Results
RL
MDL
Dilution
Analyzed
Analyst
Acetone
140
4.0
2.4
E
330
9.5
5.7
2
6/15/23 21:10
CMR
Benzene
0.24
0.035
0.026
0.78
0.11
0.084
0.696
6/14/23 19:21
CMR
Benzyl chloride
ND
0.14
0.031
ND
0.72
0.16
0.696
6/14/23 19:21
CMR
Bromodichloromethane
ND
0.035
0.024
ND
0.23
0.16
0.696
6/14/23 19:21
CMR
Bromoform
ND
0.035
0.024
ND
0.36
0.24
0.696
6/14/23 19:21
CMR
Bromomethane
ND
0.035
0.023
ND
0.14
0.090
0.696
6/14/23 19:21
CMR
1,3-Butadiene
ND
0.035
0.029
ND
0.077
0.065
0.696
6/14/23 19:21
CMR
2-Butanone (MEK)
13
1.4
0.37
39
4.1
1.1
0.696
6/14/23 19:21
CMR
Carbon Disulfide
0.37
0.35
0.032
1.2
1.1
0.10
0.696
6/14/23 19:21
CMR
Carbon Tetrachloride
0.079
0.035
0.028
0.50
0.22
0.17
0.696
6/14/23 19:21
CMR
Chlorobenzene
ND
0.035
0.023
ND
0.16
0.11
0.696
6/14/23 19:21
CMR
Chloroethane
0.17
0.035
0.031
0.45
0.092
0.081
0.696
6/14/23 19:21
CMR
Chloroform
0.055
0.035
0.033
0.27
0.17
0.16
0.696
6/14/23 19:21
CMR
Chloromethane
0.55
0.070
0.028
1.1
0.14
0.057
0.696
6/14/23 19:21
CMR
Cyclohexane
0.35
0.035
0.021
1.2
0.12
0.072
0.696
6/14/23 19:21
CMR
Dibromochloromethane
ND
0.035
0.023
ND
0.30
0.20
0.696
6/14/23 19:21
CMR
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
0.16
0.696
6/14/23 19:21
CMR
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
0.12
0.696
6/14/23 19:21
CMR
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
0.12
0.696
6/14/23 19:21
CMR
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
0.14
0.696
6/14/23 19:21
CMR
Dichlorodifluoromethane (Freon 12)
0.54
0.035
0.034
2.7
0.17
0.17
0.696
6/14/23 19:21
CMR
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
0.12
0.696
6/14/23 19:21
CMR
1,2-Dichloroethane
0.063
0.035
0.032
0.26
0.14
0.13
0.696
6/14/23 19:21
CMR
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.696
6/14/23 19:21
CMR
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
0.10
0.696
6/14/23 19:21
CMR
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.696
6/14/23 19:21
CMR
1,2-Dichloropropane
0.065
0.035
0.019
0.30
0.16
0.087
0.696
6/14/23 19:21
CMR
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.082
0.696
6/14/23 19:21
CMR
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.081
0.696
6/14/23 19:21
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
0.24
0.696
6/14/23 19:21
CMR
1,4-Dioxane
ND
0.35
0.029
ND
1.3
0.10
0.696
6/14/23 19:21
CMR
Ethanol
36
4.0
1.8
68
7.5
3.3
2
6/15/23 21:10
CMR
Ethyl Acetate
0.64
0.35
0.18
2.3
1.3
0.63
0.696
6/14/23 19:21
CMR
Ethylbenzene
1.2
0.035
0.020
5.0
0.15
0.088
0.696
6/14/23 19:21
CMR
4-Ethyltoluene
0.094
0.035
0.021
0.46
0.17
0.11
0.696
6/14/23 19:21
CMR
Heptane
1.5
0.035
0.022
6.0
0.14
0.091
0.696
6/14/23 19:21
CMR
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
0.31
0.696
6/14/23 19:21
CMR
Hexane
2.5
1.4
0.18
9.0
4.9
0.64
0.696
6/14/23 19:21
CMR
2-Hexanone (MBK)
0.16
0.14
0.017
0.66
0.57
0.071
0.696
6/14/23 19:21
CMR
Isopropanol
2.9
1.4
0.24
7.1
3.4
0.59
0.696
6/14/23 19:21
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
0.097
0.696
6/14/23 19:21
CMR
Methylene Chloride
ND
0.35
0.16
ND
1.2
0.56
0.696
6/14/23 19:21
CMR
4-Methyl-2-pentanone (MIBK)
0.32
0.035
0.019
1.3
0.14
0.076
0.696
6/14/23 19:21
CMR
Naphthalene
0.10
0.035
0.026
V-06, Z-01
0.55
0.18
0.14
0.696
6/14/23 19:21
CMR
Propene
1.2
1.4
0.31
J
2.1
2.4
0.53
0.696
6/14/23 19:21
CMR
Styrene
0.86
0.035
0.018
3.7
0.15
0.078
0.696
6/14/23 19:21
CMR
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.696
6/14/23 19:21
CMR
Page 25 of 102

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-11
Sample ID: 23F1309-10
Sample Matrix: Indoor air
Sampled: 6/4/2023 09:41
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 1878
Canister Size: 6 liter
Flow Controller ID: 3743
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -10.25
Receipt Vacuum(in Hg): -9.9
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
0.15
0.035
0.027
1.0
0.24
0.18
0.696
6/14/23 19:21
CMR
Tetrahydrofuran
34
1.0
0.16
99
2.9
0.48
2
6/15/23 21:10
CMR
Toluene
29
0.035
0.020
110
0.13
0.075
0.696
6/14/23 19:21
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.696
6/14/23 19:21
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.696
6/14/23 19:21
CMR
1,1,2-Trichloroethane
ND
0.035
0.024
ND
0.19
0.13
0.696
6/14/23 19:21
CMR
Trichloroethylene
ND
0.035
0.023
ND
0.19
0.13
0.696
6/14/23 19:21
CMR
Trichlorofluoromethane (Freon 11)
0.21
0.14
0.041
1.2
0.78
0.23
0.696
6/14/23 19:21
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.062
0.14
0.039
J 0.47
1.1
0.30
0.696
6/14/23 19:21
CMR
1,2,4-Trimethylbenzene
0.61
0.035
0.015
3.0
0.17
0.076
0.696
6/14/23 19:21
CMR
1,3,5-Trimethylbenzene
0.14
0.035
0.018
0.71
0.17
0.090
0.696
6/14/23 19:21
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.696
6/14/23 19:21
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.696
6/14/23 19:21
CMR
m&p-Xylene
4.6
0.070
0.039
20
0.30
0.17
0.696
6/14/23 19:21
CMR
o-Xylene
1.6
0.035
0.018
6.9
0.15
0.077
0.696
6/14/23 19:21
CMR
Surrogates
4-Bromofluorobenzene (1)
4-Bromofluorobenzene (1)
% Recovery
% REC Limits
99.1 70-130
96.0 70-130
6/14/23 19:21
6/15/23 21:10
Page 26 of 1 2

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-12
Canister ID: 2186
Sample ID: 23F1309-11
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3534
Sampled: 6/4/2023 09:44
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -7.25
Receipt Vacuum(in Hg): -7.7
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Acetone
140
4.0
2.4
E 330
9.5
Benzene
0.23
0.035
0.026
0.74
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
ND
0.035
0.023
ND
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
14
1.4
0.37
42
4.1
Carbon Disulfide
0.36
0.35
0.032
1.1
1.1
Carbon Tetrachloride
0.075
0.035
0.028
0.47
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
0.17
0.035
0.031
0.44
0.092
Chloroform
0.052
0.035
0.033
0.25
0.17
Chloromethane
0.59
0.070
0.028
1.2
0.14
Cyclohexane
0.34
0.035
0.021
1.2
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.56
0.035
0.034
2.8
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
0.059
0.035
0.032
0.24
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropene
0.063
0.035
0.019
0.29
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
ND
0.35
0.029
ND
1.3
Ethanol
35
4.0
1.8
66
7.5
Ethyl Acetate
0.56
0.35
0.18
2.0
1.3
Ethylbenzene
1.2
0.035
0.020
5.2
0.15
4-Ethyltoluene
0.10
0.035
0.021
0.50
0.17
Heptane
1.5
0.035
0.022
5.9
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
2.3
1.4
0.18
8.1
4.9
2-Hexanone (MBK)
0.18
0.14
0.017
0.75
0.57
Isopropanol
2.5
1.4
0.24
6.2
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
0.32
0.035
0.019
1.3
0.14
Naphthalene
0.093
0.035
0.026
V-06, Z-01 0.49
0.18
Propene
ND
1.4
0.31
ND
2.4
Styrene
0.88
0.035
0.018
3.7
0.15
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
5.7
2
6/15/23 21:37
CMR
0.084
0.698
6/14/23 19:53
CMR
0.16
0.698
6/14/23 19:53
CMR
0.16
0.698
6/14/23 19:53
CMR
0.25
0.698
6/14/23 19:53
CMR
0.090
0.698
6/14/23 19:53
CMR
0.065
0.698
6/14/23 19:53
CMR
1.1
0.698
6/14/23 19:53
CMR
0.10
0.698
6/14/23 19:53
CMR
0.17
0.698
6/14/23 19:53
CMR
0.11
0.698
6/14/23 19:53
CMR
0.082
0.698
6/14/23 19:53
CMR
0.16
0.698
6/14/23 19:53
CMR
0.057
0.698
6/14/23 19:53
CMR
0.073
0.698
6/14/23 19:53
CMR
0.20
0.698
6/14/23 19:53
CMR
0.16
0.698
6/14/23 19:53
CMR
0.12
0.698
6/14/23 19:53
CMR
0.12
0.698
6/14/23 19:53
CMR
0.14
0.698
6/14/23 19:53
CMR
0.17
0.698
6/14/23 19:53
CMR
0.12
0.698
6/14/23 19:53
CMR
0.13
0.698
6/14/23 19:53
CMR
0.11
0.698
6/14/23 19:53
CMR
0.10
0.698
6/14/23 19:53
CMR
0.11
0.698
6/14/23 19:53
CMR
0.087
0.698
6/14/23 19:53
CMR
0.082
0.698
6/14/23 19:53
CMR
0.081
0.698
6/14/23 19:53
CMR
0.24
0.698
6/14/23 19:53
CMR
0.10
0.698
6/14/23 19:53
CMR
3.3
2
6/15/23 21:37
CMR
0.64
0.698
6/14/23 19:53
CMR
0.088
0.698
6/14/23 19:53
CMR
0.11
0.698
6/14/23 19:53
CMR
0.091
0.698
6/14/23 19:53
CMR
0.31
0.698
6/14/23 19:53
CMR
0.64
0.698
6/14/23 19:53
CMR
0.071
0.698
6/14/23 19:53
CMR
0.59
0.698
6/14/23 19:53
CMR
0.097
0.698
6/14/23 19:53
CMR
0.56
0.698
6/14/23 19:53
CMR
0.076
0.698
6/14/23 19:53
CMR
0.14
0.698
6/14/23 19:53
CMR
0.53
0.698
6/14/23 19:53
CMR
0.078
0.698
6/14/23 19:53
CMR
0.13
0.698
6/14/23 19:53
CMR
Page 27 of 102

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-12
Sample ID: 23F1309-11
Sample Matrix: Indoor air
Sampled: 6/4/2023 09:44
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2186
Canister Size: 6 liter
Flow Controller ID: 3534
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -7.25
Receipt Vacuum(in Hg): -7.7
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/14/23 19:53
CMR
Tetrahydrofuran
33
1.0
0.16
97
2.9
0.48
2
6/15/23 21:37
CMR
Toluene
30
0.035
0.020
110
0.13
0.075
0.698
6/14/23 19:53
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/14/23 19:53
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/14/23 19:53
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/14/23 19:53
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/14/23 19:53
CMR
Trichlorofluoromethane (Freon 11)
0.22
0.14
0.041
1.2
0.78
0.23
0.698
6/14/23 19:53
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.064
0.14
0.039
J 0.49
1.1
0.30
0.698
6/14/23 19:53
CMR
1,2,4-Trimethylbenzene
0.60
0.035
0.015
3.0
0.17
0.076
0.698
6/14/23 19:53
CMR
1,3,5-Trimethylbenzene
0.16
0.035
0.018
0.78
0.17
0.091
0.698
6/14/23 19:53
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/14/23 19:53
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/14/23 19:53
CMR
m&p-Xylene
4.7
0.070
0.039
20
0.30
0.17
0.698
6/14/23 19:53
CMR
o-Xylene
1.6
0.035
0.018
7.0
0.15
0.078
0.698
6/14/23 19:53
CMR
Surrogates
4-Bromofluorobenzene (1)
4-Bromofluorobenzene (1)
% Recovery
% REC Limits
99.6 70-130
95.0 70-130
6/14/23 19:53
6/15/23 21:37
Page 28 of 1 2

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-14
Canister ID: 1139
Sample ID: 23F1309-12
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3532
Sampled: 6/4/2023 09:46
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -29.25
Final Vacuum(in Hg): -8.25
Receipt Vacuum(in Hg): -7.8
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Acetone
140
4.0
2.4
E
330
9.5
Benzene
0.24
0.035
0.026
0.78
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
ND
0.035
0.023
ND
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
14
1.4
0.37
L-05
40
4.1
Carbon Disulfide
0.35
0.35
0.032
J
1.1
1.1
Carbon Tetrachloride
0.081
0.035
0.028
0.51
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
0.16
0.035
0.031
0.42
0.092
Chloroform
0.049
0.035
0.033
0.24
0.17
Chloromethane
0.58
0.070
0.028
1.2
0.14
Cyclohexane
0.35
0.035
0.021
1.2
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.54
0.035
0.034
2.6
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
0.068
0.035
0.032
0.27
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropene
0.059
0.035
0.019
0.27
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
ND
0.35
0.029
ND
1.3
Ethanol
36
4.0
1.8
68
7.5
Ethyl Acetate
0.57
0.35
0.18
2.0
1.3
Ethylbenzene
1.2
0.035
0.020
5.4
0.15
4-Ethyltoluene
0.082
0.035
0.021
0.40
0.17
Heptane
1.5
0.035
0.022
6.0
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
1.5
1.4
0.18
5.2
4.9
2-Hexanone (MBK)
0.18
0.14
0.017
0.75
0.57
Isopropanol
2.7
1.4
0.24
6.6
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
0.34
0.035
0.019
1.4
0.14
Naphthalene
0.057
0.035
0.026
L-05, V-06,
0.30
0.18
Z-01
Propene
ND
1.4
0.31
ND
2.4
Styrene
0.90
0.035
0.018
3.8
0.15
5.7
2
6/15/23 22:30
CMR
0.084
0.698
6/14/23 22:52
CMR
0.16
0.698
6/14/23 22:52
CMR
0.16
0.698
6/14/23 22:52
CMR
0.25
0.698
6/14/23 22:52
CMR
0.090
0.698
6/14/23 22:52
CMR
0.065
0.698
6/14/23 22:52
CMR
1.1
0.698
6/14/23 22:52
CMR
0.10
0.698
6/14/23 22:52
CMR
0.17
0.698
6/14/23 22:52
CMR
0.11
0.698
6/14/23 22:52
CMR
0.082
0.698
6/14/23 22:52
CMR
0.16
0.698
6/14/23 22:52
CMR
0.057
0.698
6/14/23 22:52
CMR
0.073
0.698
6/14/23 22:52
CMR
0.20
0.698
6/14/23 22:52
CMR
0.16
0.698
6/14/23 22:52
CMR
0.12
0.698
6/14/23 22:52
CMR
0.12
0.698
6/14/23 22:52
CMR
0.14
0.698
6/14/23 22:52
CMR
0.17
0.698
6/14/23 22:52
CMR
0.12
0.698
6/14/23 22:52
CMR
0.13
0.698
6/14/23 22:52
CMR
0.11
0.698
6/14/23 22:52
CMR
0.10
0.698
6/14/23 22:52
CMR
0.11
0.698
6/14/23 22:52
CMR
0.087
0.698
6/14/23 22:52
CMR
0.082
0.698
6/14/23 22:52
CMR
0.081
0.698
6/14/23 22:52
CMR
0.24
0.698
6/14/23 22:52
CMR
0.10
0.698
6/14/23 22:52
CMR
3.3
2
6/15/23 22:30
CMR
0.64
0.698
6/14/23 22:52
CMR
0.088
0.698
6/14/23 22:52
CMR
0.11
0.698
6/14/23 22:52
CMR
0.091
0.698
6/14/23 22:52
CMR
0.31
0.698
6/14/23 22:52
CMR
0.64
0.698
6/14/23 22:52
CMR
0.071
0.698
6/14/23 22:52
CMR
0.59
0.698
6/14/23 22:52
CMR
0.097
0.698
6/14/23 22:52
CMR
0.56
0.698
6/14/23 22:52
CMR
0.076
0.698
6/14/23 22:52
CMR
0.14
0.698
6/14/23 22:52
CMR
0.53
0.698
6/14/23 22:52
CMR
0.078
0.698
6/14/23 22:52
CMR
Page 29 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171309
Date Received: 6/9/2023
Sub Description/Location:
Initial Vacuum(in Hg): -29.25
Field Sample #: IA-14
Canister ID: 1139
Final Vacuum(in Hg): -8.25
Sample ID: 23F1309-12
Canister Size: 6 liter
Receipt Vacuum(in Hg): -7.8
Sample Matrix: Indoor air
Flow Controller ID: 3532
Flow Controller Type: Fixed -Orifice
Sampled: 6/4/2023 09:46
Sample Type: 24 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/14/23 22:52
CMR
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/14/23 22:52
CMR
Tetrahydrofuran
35
1.0
0.16
100
2.9
0.48
2
6/15/23 22:30
CMR
Toluene
33
0.035
0.020
120
0.13
0.075
0.698
6/14/23 22:52
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/14/23 22:52
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/14/23 22:52
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/14/23 22:52
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/14/23 22:52
CMR
Trichlorofluoromethane (Freon 11)
0.22
0.14
0.041
1.2
0.78
0.23
0.698
6/14/23 22:52
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.063
0.14
0.039
J 0.49
1.1
0.30
0.698
6/14/23 22:52
CMR
1,2,4-Trimethylbenzene
0.63
0.035
0.015
3.1
0.17
0.076
0.698
6/14/23 22:52
CMR
1,3,5-Trimethylbenzene
0.15
0.035
0.018
0.73
0.17
0.091
0.698
6/14/23 22:52
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/14/23 22:52
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/14/23 22:52
CMR
m&p-Xylene
4.9
0.070
0.039
21
0.30
0.17
0.698
6/14/23 22:52
CMR
o-Xylene
1.7
0.035
0.018
7.2
0.15
0.078
0.698
6/14/23 22:52
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 98.4 70-130 6/14/23 22:52
4-Bromofluorobenzene (1) 96.1 70-130 6/15/23 22:30
Page 30 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-13
Canister ID: 2001
Sample ID: 23F1309-13
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3424
Sampled: 6/4/2023 09:50
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -29.5
Final Vacuum(in Hg): -8
Receipt Vacuum(in Hg): -8.0
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Acetone
140
4.0
2.4
E
330
9.5
Benzene
0.24
0.035
0.026
0.76
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
ND
0.035
0.023
ND
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
11
1.4
0.37
L-05
32
4.1
Carbon Disulfide
0.38
0.35
0.032
1.2
1.1
Carbon Tetrachloride
0.077
0.035
0.028
0.49
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
0.19
0.035
0.031
0.51
0.092
Chloroform
0.053
0.035
0.033
0.26
0.17
Chloromethane
0.60
0.070
0.028
1.2
0.14
Cyclohexane
0.36
0.035
0.021
1.2
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.56
0.035
0.034
2.8
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
0.065
0.035
0.032
0.26
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropene
0.066
0.035
0.019
0.30
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
ND
0.35
0.029
ND
1.3
Ethanol
36
4.0
1.8
68
7.5
Ethyl Acetate
0.63
0.35
0.18
2.3
1.3
Ethylbenzene
1.2
0.035
0.020
5.3
0.15
4-Ethyltoluene
0.10
0.035
0.021
0.49
0.17
Heptane
1.5
0.035
0.022
6.2
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
1.8
1.4
0.18
6.3
4.9
2-Hexanone (MBK)
0.19
0.14
0.017
0.77
0.57
Isopropanol
2.6
1.4
0.24
6.5
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
0.34
0.035
0.019
1.4
0.14
Naphthalene
0.077
0.035
0.026
L-05, V-06,
0.40
0.18
Z-01
Propene
1.3
1.4
0.31
J
2.3
2.4
Styrene
0.92
0.035
0.018
3.9
0.15
5.7
2
6/15/23 22:57
CMR
0.084
0.698
6/14/23 23:23
CMR
0.16
0.698
6/14/23 23:23
CMR
0.16
0.698
6/14/23 23:23
CMR
0.25
0.698
6/14/23 23:23
CMR
0.090
0.698
6/14/23 23:23
CMR
0.065
0.698
6/14/23 23:23
CMR
1.1
0.698
6/14/23 23:23
CMR
0.10
0.698
6/14/23 23:23
CMR
0.17
0.698
6/14/23 23:23
CMR
0.11
0.698
6/14/23 23:23
CMR
0.082
0.698
6/14/23 23:23
CMR
0.16
0.698
6/14/23 23:23
CMR
0.057
0.698
6/14/23 23:23
CMR
0.073
0.698
6/14/23 23:23
CMR
0.20
0.698
6/14/23 23:23
CMR
0.16
0.698
6/14/23 23:23
CMR
0.12
0.698
6/14/23 23:23
CMR
0.12
0.698
6/14/23 23:23
CMR
0.14
0.698
6/14/23 23:23
CMR
0.17
0.698
6/14/23 23:23
CMR
0.12
0.698
6/14/23 23:23
CMR
0.13
0.698
6/14/23 23:23
CMR
0.11
0.698
6/14/23 23:23
CMR
0.10
0.698
6/14/23 23:23
CMR
0.11
0.698
6/14/23 23:23
CMR
0.087
0.698
6/14/23 23:23
CMR
0.082
0.698
6/14/23 23:23
CMR
0.081
0.698
6/14/23 23:23
CMR
0.24
0.698
6/14/23 23:23
CMR
0.10
0.698
6/14/23 23:23
CMR
3.3
2
6/15/23 22:57
CMR
0.64
0.698
6/14/23 23:23
CMR
0.088
0.698
6/14/23 23:23
CMR
0.11
0.698
6/14/23 23:23
CMR
0.091
0.698
6/14/23 23:23
CMR
0.31
0.698
6/14/23 23:23
CMR
0.64
0.698
6/14/23 23:23
CMR
0.071
0.698
6/14/23 23:23
CMR
0.59
0.698
6/14/23 23:23
CMR
0.097
0.698
6/14/23 23:23
CMR
0.56
0.698
6/14/23 23:23
CMR
0.076
0.698
6/14/23 23:23
CMR
0.14
0.698
6/14/23 23:23
CMR
0.53
0.698
6/14/23 23:23
CMR
0.078
0.698
6/14/23 23:23
CMR
Page 31 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171309
Date Received: 6/9/2023
Sub Description/Location:
Initial Vacuum(in Hg): -29.5
Field Sample #: IA-13
Canister ID: 2001
Final Vacuum(in Hg): -8
Sample ID: 23F1309-13
Canister Size: 6 liter
Receipt Vacuum(in Hg): -8.0
Sample Matrix: Indoor air
Flow Controller ID: 3424
Flow Controller Type: Fixed -Orifice
Sampled: 6/4/2023 09:50
Sample Type: 24 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/14/23 23:23
CMR
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/14/23 23:23
CMR
Tetrahydrofuran
34
1.0
0.16
100
2.9
0.48
2
6/15/23 22:57
CMR
Toluene
32
0.035
0.020
120
0.13
0.075
0.698
6/14/23 23:23
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/14/23 23:23
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/14/23 23:23
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/14/23 23:23
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/14/23 23:23
CMR
Trichlorofluoromethane (Freon 11)
0.21
0.14
0.041
1.2
0.78
0.23
0.698
6/14/23 23:23
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.063
0.14
0.039
J 0.48
1.1
0.30
0.698
6/14/23 23:23
CMR
1,2,4-Trimethylbenzene
0.64
0.035
0.015
3.1
0.17
0.076
0.698
6/14/23 23:23
CMR
1,3,5-Trimethylbenzene
0.15
0.035
0.018
0.73
0.17
0.091
0.698
6/14/23 23:23
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/14/23 23:23
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/14/23 23:23
CMR
m&p-Xylene
4.8
0.070
0.039
21
0.30
0.17
0.698
6/14/23 23:23
CMR
o-Xylene
1.7
0.035
0.018
7.3
0.15
0.078
0.698
6/14/23 23:23
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 99.2 70-130 6/14/23 23:23
4-Bromofluorobenzene (1) 96.3 70-130 6/15/23 22:57
Page 32 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-16
Canister ID: 1232
Sample ID: 23F1309-14
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3425
Sampled: 6/4/2023 09:55
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -6.25
Receipt Vacuum(in Hg): -6.8
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RI MDL Dilution Analyzed Analyst
Acetone
21
1.4
0.84
50
3.3
Benzene
0.53
0.035
0.026
1.7
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
ND
0.035
0.023
ND
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
3.3
1.4
0.37
L-05
9.7
4.1
Carbon Disulfide
0.042
0.35
0.032
J
0.13
1.1
Carbon Tetrachloride
0.076
0.035
0.028
0.48
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
ND
0.035
0.031
ND
0.092
Chloroform
ND
0.035
0.033
ND
0.17
Chloromethane
0.60
0.070
0.028
1.2
0.14
Cyclohexane
0.48
0.035
0.021
1.7
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.53
0.035
0.034
2.6
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
0.067
0.035
0.032
0.27
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropene
ND
0.035
0.019
ND
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
ND
0.35
0.029
ND
1.3
Ethanol
55
1.4
0.62
E
100
2.6
Ethyl Acetate
0.52
0.35
0.18
1.9
1.3
Ethylbenzene
0.30
0.035
0.020
1.3
0.15
4-Ethyltoluene
0.029
0.035
0.021
J
0.14
0.17
Heptane
3.4
0.035
0.022
14
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
0.54
1.4
0.18
J
1.9
4.9
2-Hexanone (MBK)
0.12
0.14
0.017
J
0.51
0.57
Isopropanol
1.6
1.4
0.24
4.0
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
0.44
0.035
0.019
1.8
0.14
Naphthalene
0.048
0.035
0.026
L-05, V-06,
0.25
0.18
Z-01
Propene
0.97
1.4
0.31
J
1.7
2.4
Styrene
0.42
0.035
0.018
1.8
0.15
2.0
0.698
6/14/23 23:55
CMR
0.084
0.698
6/14/23 23:55
CMR
0.16
0.698
6/14/23 23:55
CMR
0.16
0.698
6/14/23 23:55
CMR
0.25
0.698
6/14/23 23:55
CMR
0.090
0.698
6/14/23 23:55
CMR
0.065
0.698
6/14/23 23:55
CMR
1.1
0.698
6/14/23 23:55
CMR
0.10
0.698
6/14/23 23:55
CMR
0.17
0.698
6/14/23 23:55
CMR
0.11
0.698
6/14/23 23:55
CMR
0.082
0.698
6/14/23 23:55
CMR
0.16
0.698
6/14/23 23:55
CMR
0.057
0.698
6/14/23 23:55
CMR
0.073
0.698
6/14/23 23:55
CMR
0.20
0.698
6/14/23 23:55
CMR
0.16
0.698
6/14/23 23:55
CMR
0.12
0.698
6/14/23 23:55
CMR
0.12
0.698
6/14/23 23:55
CMR
0.14
0.698
6/14/23 23:55
CMR
0.17
0.698
6/14/23 23:55
CMR
0.12
0.698
6/14/23 23:55
CMR
0.13
0.698
6/14/23 23:55
CMR
0.11
0.698
6/14/23 23:55
CMR
0.10
0.698
6/14/23 23:55
CMR
0.11
0.698
6/14/23 23:55
CMR
0.087
0.698
6/14/23 23:55
CMR
0.082
0.698
6/14/23 23:55
CMR
0.081
0.698
6/14/23 23:55
CMR
0.24
0.698
6/14/23 23:55
CMR
0.10
0.698
6/14/23 23:55
CMR
1.2
0.698
6/14/23 23:55
CMR
0.64
0.698
6/14/23 23:55
CMR
0.088
0.698
6/14/23 23:55
CMR
0.11
0.698
6/14/23 23:55
CMR
0.091
0.698
6/14/23 23:55
CMR
0.31
0.698
6/14/23 23:55
CMR
0.64
0.698
6/14/23 23:55
CMR
0.071
0.698
6/14/23 23:55
CMR
0.59
0.698
6/14/23 23:55
CMR
0.097
0.698
6/14/23 23:55
CMR
0.56
0.698
6/14/23 23:55
CMR
0.076
0.698
6/14/23 23:55
CMR
0.14
0.698
6/14/23 23:55
CMR
0.53
0.698
6/14/23 23:55
CMR
0.078
0.698
6/14/23 23:55
CMR
Page 33 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171309
Date Received: 6/9/2023
Sub Description/Location:
Initial Vacuum(in Hg): -29
Field Sample #: IA-16
Canister ID: 1232
Final Vacuum(in Hg): -6.25
Sample ID: 23F1309-14
Canister Size: 6 liter
Receipt Vacuum(in Hg): -6.8
Sample Matrix: Indoor air
Flow Controller ID: 3425
Flow Controller Type: Fixed -Orifice
Sampled: 6/4/2023 09:55
Sample Type: 24 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/14/23 23:55
CMR
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/14/23 23:55
CMR
Tetrahydrofuran
6.0
0.35
0.057
18
1.0
0.17
0.698
6/14/23 23:55
CMR
Toluene
13
0.035
0.020
50
0.13
0.075
0.698
6/14/23 23:55
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/14/23 23:55
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/14/23 23:55
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/14/23 23:55
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/14/23 23:55
CMR
Trichlorofluoromethane (Freon 11)
0.21
0.14
0.041
1.2
0.78
0.23
0.698
6/14/23 23:55
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.062
0.14
0.039
J 0.48
1.1
0.30
0.698
6/14/23 23:55
CMR
1,2,4-Trimethylbenzene
0.17
0.035
0.015
0.83
0.17
0.076
0.698
6/14/23 23:55
CMR
1,3,5-Trimethylbenzene
0.043
0.035
0.018
0.21
0.17
0.091
0.698
6/14/23 23:55
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/14/23 23:55
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/14/23 23:55
CMR
m&p-Xylene
1.1
0.070
0.039
4.8
0.30
0.17
0.698
6/14/23 23:55
CMR
o-Xylene
0.44
0.035
0.018
1.9
0.15
0.078
0.698
6/14/23 23:55
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 97.0 70-130 6/14/23 23:55
Page 34 of 1 2

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-17
Canister ID: 2455
Sample ID: 23F1309-15
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3257
Sampled: 6/4/2023 09:57
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -31
Final Vacuum(in Hg): -8.5
Receipt Vacuum(in Hg): -6.6
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Acetone
20
1.4
0.84
47
3.3
Benzene
0.52
0.035
0.026
1.7
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
ND
0.035
0.023
ND
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
3.2
1.4
0.37
L-05
9.6
4.1
Carbon Disulfide
0.051
0.35
0.032
J
0.16
1.1
Carbon Tetrachloride
0.078
0.035
0.028
0.49
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
ND
0.035
0.031
ND
0.092
Chloroform
ND
0.035
0.033
ND
0.17
Chloromethane
0.52
0.070
0.028
1.1
0.14
Cyclohexane
0.62
0.035
0.021
2.1
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.52
0.035
0.034
2.6
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
0.068
0.035
0.032
0.27
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropane
ND
0.035
0.019
ND
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
ND
0.35
0.029
ND
1.3
Ethanol
70
1.4
0.62
E
130
2.6
Ethyl Acetate
0.56
0.35
0.18
2.0
1.3
Ethylbenzene
0.33
0.035
0.020
1.4
0.15
4-Ethyltoluene
0.031
0.035
0.021
J
0.15
0.17
Heptane
4.9
0.035
0.022
20
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
0.56
1.4
0.18
J
2.0
4.9
2-Hexanone (MBK)
0.091
0.14
0.017
J
0.37
0.57
Isopropanol
1.6
1.4
0.24
4.0
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
0.63
0.035
0.019
2.6
0.14
Naphthalene
0.059
0.035
0.026
L-05, V-06,
0.31
0.18
Z-01
Propene
0.90
1.4
0.31
J
1.5
2.4
Styrene
0.44
0.035
0.018
1.9
0.15
2.0
0.698
6/15/23 0:27
CMR
0.084
0.698
6/15/23 0:27
CMR
0.16
0.698
6/15/23 0:27
CMR
0.16
0.698
6/15/23 0:27
CMR
0.25
0.698
6/15/23 0:27
CMR
0.090
0.698
6/15/23 0:27
CMR
0.065
0.698
6/15/23 0:27
CMR
1.1
0.698
6/15/23 0:27
CMR
0.10
0.698
6/15/23 0:27
CMR
0.17
0.698
6/15/23 0:27
CMR
0.11
0.698
6/15/23 0:27
CMR
0.082
0.698
6/15/23 0:27
CMR
0.16
0.698
6/15/23 0:27
CMR
0.057
0.698
6/15/23 0:27
CMR
0.073
0.698
6/15/23 0:27
CMR
0.20
0.698
6/15/23 0:27
CMR
0.16
0.698
6/15/23 0:27
CMR
0.12
0.698
6/15/23 0:27
CMR
0.12
0.698
6/15/23 0:27
CMR
0.14
0.698
6/15/23 0:27
CMR
0.17
0.698
6/15/23 0:27
CMR
0.12
0.698
6/15/23 0:27
CMR
0.13
0.698
6/15/23 0:27
CMR
0.11
0.698
6/15/23 0:27
CMR
0.10
0.698
6/15/23 0:27
CMR
0.11
0.698
6/15/23 0:27
CMR
0.087
0.698
6/15/23 0:27
CMR
0.082
0.698
6/15/23 0:27
CMR
0.081
0.698
6/15/23 0:27
CMR
0.24
0.698
6/15/23 0:27
CMR
0.10
0.698
6/15/23 0:27
CMR
1.2
0.698
6/15/23 0:27
CMR
0.64
0.698
6/15/23 0:27
CMR
0.088
0.698
6/15/23 0:27
CMR
0.11
0.698
6/15/23 0:27
CMR
0.091
0.698
6/15/23 0:27
CMR
0.31
0.698
6/15/23 0:27
CMR
0.64
0.698
6/15/23 0:27
CMR
0.071
0.698
6/15/23 0:27
CMR
0.59
0.698
6/15/23 0:27
CMR
0.097
0.698
6/15/23 0:27
CMR
0.56
0.698
6/15/23 0:27
CMR
0.076
0.698
6/15/23 0:27
CMR
0.14
0.698
6/15/23 0:27
CMR
0.53
0.698
6/15/23 0:27
CMR
0.078
0.698
6/15/23 0:27
CMR
Page 35 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171309
Date Received: 6/9/2023
Sub Description/Location:
Initial Vacuum(in Hg): -31
Field Sample #: IA-17
Canister ID: 2455
Final Vacuum(in Hg): -8.5
Sample ID: 23F1309-15
Canister Size: 6 liter
Receipt Vacuum(in Hg): -6.6
Sample Matrix: Indoor air
Flow Controller ID: 3257
Flow Controller Type: Fixed -Orifice
Sampled: 6/4/2023 09:57
Sample Type: 24 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/15/23 0:27
CMR
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/15/23 0:27
CMR
Tetrahydrofuran
6.0
0.35
0.057
18
1.0
0.17
0.698
6/15/23 0:27
CMR
Toluene
17
0.035
0.020
63
0.13
0.075
0.698
6/15/23 0:27
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/15/23 0:27
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/15/23 0:27
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/15/23 0:27
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/15/23 0:27
CMR
Trichlorofluoromethane (Freon 11)
0.21
0.14
0.041
1.2
0.78
0.23
0.698
6/15/23 0:27
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.061
0.14
0.039
J 0.47
1.1
0.30
0.698
6/15/23 0:27
CMR
1,2,4-Trimethylbenzene
0.17
0.035
0.015
0.86
0.17
0.076
0.698
6/15/23 0:27
CMR
1,3,5-Trimethylbenzene
0.040
0.035
0.018
0.20
0.17
0.091
0.698
6/15/23 0:27
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/15/23 0:27
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/15/23 0:27
CMR
m&p-Xylene
1.2
0.070
0.039
5.2
0.30
0.17
0.698
6/15/23 0:27
CMR
o-Xylene
0.50
0.035
0.018
2.2
0.15
0.078
0.698
6/15/23 0:27
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 97.4 70-130 6/15/23 0:27
Page 36 of 1 2

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-18
Canister ID: 2009
Sample ID: 23F1309-16
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3256
Sampled: 6/4/2023 10:00
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -30.5
Final Vacuum(in Hg): -9
Receipt Vacuum(in Hg): -8.7
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Acetone
37
4.0
2.4
89
9.5
Benzene
0.25
0.035
0.026
0.79
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
ND
0.035
0.023
ND
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
56
4.0
1.1
160
12
Carbon Disulfide
0.21
0.35
0.032
J
0.64
1.1
Carbon Tetrachloride
0.077
0.035
0.028
0.48
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
0.040
0.035
0.031
0.11
0.092
Chloroform
0.036
0.035
0.033
0.17
0.17
Chloromethane
0.61
0.070
0.028
1.3
0.14
Cyclohexane
0.77
0.035
0.021
2.6
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.63
0.035
0.034
3.1
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
0.078
0.035
0.032
0.32
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropene
ND
0.035
0.019
ND
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
ND
0.35
0.029
ND
1.3
Ethanol
300
4.0
1.8
E
570
7.5
Ethyl Acetate
0.94
0.35
0.18
3.4
1.3
Ethylbenzene
0.93
0.035
0.020
4.1
0.15
4-Ethyltoluene
0.10
0.035
0.021
0.50
0.17
Heptane
8.5
0.035
0.022
35
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
0.63
1.4
0.18
J
2.2
4.9
2-Hexanone (MBK)
0.20
0.14
0.017
0.81
0.57
Isopropanol
2.6
1.4
0.24
6.3
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
2.5
0.035
0.019
10
0.14
Naphthalene
0.10
0.035
0.026
L-05, V-06,
0.53
0.18
Z-01
Propene
1.0
1.4
0.31
J
1.8
2.4
Styrene
0.90
0.035
0.018
3.8
0.15
5.7
2
6/15/23 23:23
CMR
0.084
0.698
6/15/23 0:58
CMR
0.16
0.698
6/15/23 0:58
CMR
0.16
0.698
6/15/23 0:58
CMR
0.25
0.698
6/15/23 0:58
CMR
0.090
0.698
6/15/23 0:58
CMR
0.065
0.698
6/15/23 0:58
CMR
3.1
2
6/15/23 23:23
CMR
0.10
0.698
6/15/23 0:58
CMR
0.17
0.698
6/15/23 0:58
CMR
0.11
0.698
6/15/23 0:58
CMR
0.082
0.698
6/15/23 0:58
CMR
0.16
0.698
6/15/23 0:58
CMR
0.057
0.698
6/15/23 0:58
CMR
0.073
0.698
6/15/23 0:58
CMR
0.20
0.698
6/15/23 0:58
CMR
0.16
0.698
6/15/23 0:58
CMR
0.12
0.698
6/15/23 0:58
CMR
0.12
0.698
6/15/23 0:58
CMR
0.14
0.698
6/15/23 0:58
CMR
0.17
0.698
6/15/23 0:58
CMR
0.12
0.698
6/15/23 0:58
CMR
0.13
0.698
6/15/23 0:58
CMR
0.11
0.698
6/15/23 0:58
CMR
0.10
0.698
6/15/23 0:58
CMR
0.11
0.698
6/15/23 0:58
CMR
0.087
0.698
6/15/23 0:58
CMR
0.082
0.698
6/15/23 0:58
CMR
0.081
0.698
6/15/23 0:58
CMR
0.24
0.698
6/15/23 0:58
CMR
0.10
0.698
6/15/23 0:58
CMR
3.3
2
6/15/23 23:23
CMR
0.64
0.698
6/15/23 0:58
CMR
0.088
0.698
6/15/23 0:58
CMR
0.11
0.698
6/15/23 0:58
CMR
0.091
0.698
6/15/23 0:58
CMR
0.31
0.698
6/15/23 0:58
CMR
0.64
0.698
6/15/23 0:58
CMR
0.071
0.698
6/15/23 0:58
CMR
0.59
0.698
6/15/23 0:58
CMR
0.097
0.698
6/15/23 0:58
CMR
0.56
0.698
6/15/23 0:58
CMR
0.076
0.698
6/15/23 0:58
CMR
0.14
0.698
6/15/23 0:58
CMR
0.53
0.698
6/15/23 0:58
CMR
0.078
0.698
6/15/23 0:58
CMR
Page 37 of 102

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-18
Sample ID: 23F1309-16
Sample Matrix: Indoor air
Sampled: 6/4/2023 10:00
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2009
Canister Size: 6 liter
Flow Controller ID: 3256
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -30.5
Final Vacuum(in Hg): -9
Receipt Vacuum(in Hg): -8.7
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/15/23 0:58
CMR
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/15/23 0:58
CMR
Tetrahydrofuran
16
0.35
0.057
48
1.0
0.17
0.698
6/15/23 0:58
CMR
Toluene
29
0.035
0.020
110
0.13
0.075
0.698
6/15/23 0:58
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/15/23 0:58
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/15/23 0:58
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/15/23 0:58
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/15/23 0:58
CMR
Trichlorofluoromethane (Freon 11)
0.20
0.14
0.041
1.1
0.78
0.23
0.698
6/15/23 0:58
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.065
0.14
0.039
J 0.50
1.1
0.30
0.698
6/15/23 0:58
CMR
1,2,4-Trimethylbenzene
0.63
0.035
0.015
3.1
0.17
0.076
0.698
6/15/23 0:58
CMR
1,3,5-Trimethylbenzene
0.19
0.035
0.018
0.96
0.17
0.091
0.698
6/15/23 0:58
CMR
Vinyl Acetate
2.1
0.70
0.19
7.3
2.5
0.66
0.698
6/15/23 0:58
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/15/23 0:58
CMR
m&p-Xylene
3.5
0.070
0.039
15
0.30
0.17
0.698
6/15/23 0:58
CMR
o-Xylene
1.2
0.035
0.018
5.2
0.15
0.078
0.698
6/15/23 0:58
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 98.6 70-130 6/15/23 0:58
4-Bromofluorobenzene (1) 95.4 70-130 6/15/23 23:23
Page 38 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-19
Canister ID: 1884
Sample ID: 23F1309-17
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3494
Sampled: 6/4/2023 10:07
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -29.5
Final Vacuum(in Hg): -7.75
Receipt Vacuum(in Hg): -7.3
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Acetone
33
4.0
2.4
79
9.5
Benzene
0.22
0.035
0.026
0.70
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
ND
0.035
0.023
ND
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
31
4.0
1.1
93
12
Carbon Disulfide
0.21
0.35
0.032
J
0.64
1.1
Carbon Tetrachloride
0.069
0.035
0.028
0.43
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
0.043
0.035
0.031
0.11
0.092
Chloroform
0.038
0.035
0.033
0.18
0.17
Chloromethane
0.59
0.070
0.028
1.2
0.14
Cyclohexane
0.56
0.035
0.021
1.9
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.51
0.035
0.034
2.5
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
0.069
0.035
0.032
0.28
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropene
ND
0.035
0.019
ND
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
ND
0.35
0.029
ND
1.3
Ethanol
340
4.0
1.8
E
640
7.5
Ethyl Acetate
0.84
0.35
0.18
3.0
1.3
Ethylbenzene
0.74
0.035
0.020
3.2
0.15
4-Ethyltoluene
0.15
0.035
0.021
0.74
0.17
Heptane
5.8
0.035
0.022
24
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
0.48
1.4
0.18
J
1.7
4.9
2-Hexanone (MBK)
0.19
0.14
0.017
0.79
0.57
Isopropanol
2.4
1.4
0.24
5.8
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
2.4
0.035
0.019
9.9
0.14
Naphthalene
0.11
0.035
0.026
L-05, V-06,
0.57
0.18
Z-01
Propene
0.82
1.4
0.31
J
1.4
2.4
Styrene
0.78
0.035
0.018
3.3
0.15
5.7
2
6/15/23 23:49
CMR
0.084
0.698
6/15/23
1:29
CMR
0.16
0.698
6/15/23
1:29
CMR
0.16
0.698
6/15/23
1:29
CMR
0.25
0.698
6/15/23
1:29
CMR
0.090
0.698
6/15/23
1:29
CMR
0.065
0.698
6/15/23
1:29
CMR
3.1
2
6/15/23
23:49
CMR
0.10
0.698
6/15/23
1:29
CMR
0.17
0.698
6/15/23
1:29
CMR
0.11
0.698
6/15/23
1:29
CMR
0.082
0.698
6/15/23
1:29
CMR
0.16
0.698
6/15/23
1:29
CMR
0.057
0.698
6/15/23
1:29
CMR
0.073
0.698
6/15/23
1:29
CMR
0.20
0.698
6/15/23
1:29
CMR
0.16
0.698
6/15/23
1:29
CMR
0.12
0.698
6/15/23
1:29
CMR
0.12
0.698
6/15/23
1:29
CMR
0.14
0.698
6/15/23
1:29
CMR
0.17
0.698
6/15/23
1:29
CMR
0.12
0.698
6/15/23
1:29
CMR
0.13
0.698
6/15/23
1:29
CMR
0.11
0.698
6/15/23
1:29
CMR
0.10
0.698
6/15/23
1:29
CMR
0.11
0.698
6/15/23
1:29
CMR
0.087
0.698
6/15/23
1:29
CMR
0.082
0.698
6/15/23
1:29
CMR
0.081
0.698
6/15/23
1:29
CMR
0.24
0.698
6/15/23
1:29
CMR
0.10
0.698
6/15/23
1:29
CMR
3.3
2
6/15/23
23:49
CMR
0.64
0.698
6/15/23
1:29
CMR
0.088
0.698
6/15/23
1:29
CMR
0.11
0.698
6/15/23
1:29
CMR
0.091
0.698
6/15/23
1:29
CMR
0.31
0.698
6/15/23
1:29
CMR
0.64
0.698
6/15/23
1:29
CMR
0.071
0.698
6/15/23
1:29
CMR
0.59
0.698
6/15/23
1:29
CMR
0.097
0.698
6/15/23
1:29
CMR
0.56
0.698
6/15/23
1:29
CMR
0.076
0.698
6/15/23
1:29
CMR
0.14
0.698
6/15/23
1:29
CMR
0.53
0.698
6/15/23
1:29
CMR
0.078
0.698
6/15/23
1:29
CMR
Page 39 of 102

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-19
Sample ID: 23F1309-17
Sample Matrix: Indoor air
Sampled: 6/4/2023 10:07
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 1884
Canister Size: 6 liter
Flow Controller ID: 3494
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -29.5
Final Vacuum(in Hg): -7.75
Receipt Vacuum(in Hg): -7.3
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/15/23
1:29
CMR
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/15/23
1:29
CMR
Tetrahydrofuran
17
0.35
0.057
50
1.0
0.17
0.698
6/15/23
1:29
CMR
Toluene
21
0.035
0.020
80
0.13
0.075
0.698
6/15/23
1:29
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/15/23
1:29
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/15/23
1:29
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/15/23
1:29
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/15/23
1:29
CMR
Trichlorofluoromethane (Freon 11)
0.22
0.14
0.041
1.2
0.78
0.23
0.698
6/15/23
1:29
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.068
0.14
0.039
J 0.52
1.1
0.30
0.698
6/15/23
1:29
CMR
1,2,4-Trimethylbenzene
0.82
0.035
0.015
4.0
0.17
0.076
0.698
6/15/23
1:29
CMR
1,3,5-Trimethylbenzene
0.28
0.035
0.018
1.4
0.17
0.091
0.698
6/15/23
1:29
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/15/23
1:29
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/15/23
1:29
CMR
m&p-Xylene
2.7
0.070
0.039
12
0.30
0.17
0.698
6/15/23
1:29
CMR
o-Xylene
1.0
0.035
0.018
4.4
0.15
0.078
0.698
6/15/23
1:29
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 99.7 70-130 6/15/23 1:29
4-Bromofluorobenzene (1) 96.9 70-130 6/15/23 23:49
Page 40 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-23
Canister ID: 1080
Sample ID: 23F1309-19
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3402
Sampled: 6/4/2023 10:15
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -7.75
Receipt Vacuum(in Hg): -7.5
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Acetone
91
8.0
4.8
210
19
Benzene
0.15
0.035
0.026
0.47
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
0.093
0.035
0.023
0.36
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
7.4
1.4
0.37
L-05
22
4.1
Carbon Disulfide
0.033
0.35
0.032
J
0.10
1.1
Carbon Tetrachloride
0.080
0.035
0.028
0.50
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
ND
0.035
0.031
ND
0.092
Chloroform
0.033
0.035
0.033
J
0.16
0.17
Chloromethane
0.60
0.070
0.028
1.2
0.14
Cyclohexane
1.2
0.035
0.021
4.2
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.52
0.035
0.034
2.5
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
ND
0.035
0.032
ND
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropane
0.032
0.035
0.019
J
0.15
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
ND
0.35
0.029
ND
1.3
Ethanol
130
8.0
3.5
240
15
Ethyl Acetate
ND
0.35
0.18
ND
1.3
Ethylbenzene
1.6
0.035
0.020
7.1
0.15
4-Ethyltoluene
0.036
0.035
0.021
0.17
0.17
Heptane
3.3
0.035
0.022
13
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
4.1
1.4
0.18
15
4.9
2-Hexanone (MBK)
0.21
0.14
0.017
0.85
0.57
Isopropanol
8.4
1.4
0.24
21
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
1.2
0.035
0.019
5.1
0.14
Naphthalene
0.051
0.035
0.026
L-05, V-06,
0.27
0.18
Z-01
Propene
0.63
1.4
0.31
J
1.1
2.4
Styrene
4.8
0.035
0.018
20
0.15
11
4
6/16/23 12:36
CMR
0.084
0.698
6/15/23 2:01
CMR
0.16
0.698
6/15/23 2:01
CMR
0.16
0.698
6/15/23 2:01
CMR
0.25
0.698
6/15/23 2:01
CMR
0.090
0.698
6/15/23 2:01
CMR
0.065
0.698
6/15/23 2:01
CMR
1.1
0.698
6/15/23 2:01
CMR
0.10
0.698
6/15/23 2:01
CMR
0.17
0.698
6/15/23 2:01
CMR
0.11
0.698
6/15/23 2:01
CMR
0.082
0.698
6/15/23 2:01
CMR
0.16
0.698
6/15/23 2:01
CMR
0.057
0.698
6/15/23 2:01
CMR
0.073
0.698
6/15/23 2:01
CMR
0.20
0.698
6/15/23 2:01
CMR
0.16
0.698
6/15/23 2:01
CMR
0.12
0.698
6/15/23 2:01
CMR
0.12
0.698
6/15/23 2:01
CMR
0.14
0.698
6/15/23 2:01
CMR
0.17
0.698
6/15/23 2:01
CMR
0.12
0.698
6/15/23 2:01
CMR
0.13
0.698
6/15/23 2:01
CMR
0.11
0.698
6/15/23 2:01
CMR
0.10
0.698
6/15/23 2:01
CMR
0.11
0.698
6/15/23 2:01
CMR
0.087
0.698
6/15/23 2:01
CMR
0.082
0.698
6/15/23 2:01
CMR
0.081
0.698
6/15/23 2:01
CMR
0.24
0.698
6/15/23 2:01
CMR
0.10
0.698
6/15/23 2:01
CMR
6.6
4
6/16/23 12:36
CMR
0.64
0.698
6/15/23 2:01
CMR
0.088
0.698
6/15/23 2:01
CMR
0.11
0.698
6/15/23 2:01
CMR
0.091
0.698
6/15/23 2:01
CMR
0.31
0.698
6/15/23 2:01
CMR
0.64
0.698
6/15/23 2:01
CMR
0.071
0.698
6/15/23 2:01
CMR
0.59
0.698
6/15/23 2:01
CMR
0.097
0.698
6/15/23 2:01
CMR
0.56
0.698
6/15/23 2:01
CMR
0.076
0.698
6/15/23 2:01
CMR
0.14
0.698
6/15/23 2:01
CMR
0.53
0.698
6/15/23 2:01
CMR
0.078
0.698
6/15/23 2:01
CMR
Page 41 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171309
Date Received: 6/9/2023
Sub Description/Location:
Initial Vacuum(in Hg): -30
Field Sample #: IA-23
Canister ID: 1080
Final Vacuum(in Hg): -7.75
Sample ID: 23F1309-19
Canister Size: 6 liter
Receipt Vacuum(in Hg): -7.5
Sample Matrix: Indoor air
Flow Controller ID: 3402
Flow Controller Type: Fixed -Orifice
Sampled: 6/4/2023 10:15
Sample Type: 24 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/15/23 2:01
CMR
Tetrachloroethylene
0.031
0.035
0.027
J 0.21
0.24
0.18
0.698
6/15/23 2:01
CMR
Tetrahydrofuran
67
2.0
0.33
200
5.9
0.97
4
6/16/23 12:36
CMR
Toluene
180
0.20
0.11
690
0.75
0.43
4
6/16/23 12:36
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/15/23 2:01
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/15/23 2:01
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/15/23 2:01
CMR
Trichloroethylene
0.064
0.035
0.024
0.34
0.19
0.13
0.698
6/15/23 2:01
CMR
Trichlorofluoromethane (Freon 11)
0.21
0.14
0.041
1.2
0.78
0.23
0.698
6/15/23 2:01
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.061
0.14
0.039
J 0.47
1.1
0.30
0.698
6/15/23 2:01
CMR
1,2,4-Trimethylbenzene
0.18
0.035
0.015
0.88
0.17
0.076
0.698
6/15/23 2:01
CMR
1,3,5-Trimethylbenzene
0.046
0.035
0.018
0.23
0.17
0.091
0.698
6/15/23 2:01
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/15/23 2:01
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/15/23 2:01
CMR
m&p-Xylene
7.3
0.070
0.039
32
0.30
0.17
0.698
6/15/23 2:01
CMR
o-Xylene
2.7
0.035
0.018
12
0.15
0.078
0.698
6/15/23 2:01
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 99.4 70-130 6/15/23 2:01
4-Bromofluorobenzene (1) 92.7 70-130 6/16/23 12:36
Page 42 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-15
Canister ID: 1730
Sample ID: 23F1309-20
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3090
Sampled: 6/4/2023 10:22
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -29.25
Final Vacuum(in Hg): -8.5
Receipt Vacuum(in Hg): -8.6
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Acetone
56
8.0
4.8
130
19
Benzene
0.27
0.035
0.026
0.85
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
ND
0.035
0.023
ND
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
9.4
1.4
0.37
L-05
28
4.1
Carbon Disulfide
0.054
0.35
0.032
J
0.17
1.1
Carbon Tetrachloride
0.079
0.035
0.028
0.50
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
0.035
0.035
0.031
0.092
0.092
Chloroform
ND
0.035
0.033
ND
0.17
Chloromethane
0.60
0.070
0.028
1.2
0.14
Cyclohexane
0.44
0.035
0.021
1.5
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.53
0.035
0.034
2.6
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
0.067
0.035
0.032
0.27
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropane
0.023
0.035
0.019
J
0.11
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
0.19
0.35
0.029
J
0.67
1.3
Ethanol
60
8.0
3.5
110
15
Ethyl Acetate
0.27
0.35
0.18
J
0.97
1.3
Ethylbenzene
0.69
0.035
0.020
3.0
0.15
4-Ethyltoluene
0.040
0.035
0.021
0.20
0.17
Heptane
1.3
0.035
0.022
5.4
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
1.5
1.4
0.18
5.4
4.9
2-Hexanone (MBK)
0.16
0.14
0.017
0.67
0.57
Isopropanol
3.6
1.4
0.24
9.0
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
0.57
0.035
0.019
2.3
0.14
Naphthalene
0.075
0.035
0.026
L-05, V-06,
0.39
0.18
Z-01
Propene
0.91
1.4
0.31
J
1.6
2.4
Styrene
1.5
0.035
0.018
6.4
0.15
11
4
6/16/23 13:01
CMR
0.084
0.698
6/15/23 2:32
CMR
0.16
0.698
6/15/23 2:32
CMR
0.16
0.698
6/15/23 2:32
CMR
0.25
0.698
6/15/23 2:32
CMR
0.090
0.698
6/15/23 2:32
CMR
0.065
0.698
6/15/23 2:32
CMR
1.1
0.698
6/15/23 2:32
CMR
0.10
0.698
6/15/23 2:32
CMR
0.17
0.698
6/15/23 2:32
CMR
0.11
0.698
6/15/23 2:32
CMR
0.082
0.698
6/15/23 2:32
CMR
0.16
0.698
6/15/23 2:32
CMR
0.057
0.698
6/15/23 2:32
CMR
0.073
0.698
6/15/23 2:32
CMR
0.20
0.698
6/15/23 2:32
CMR
0.16
0.698
6/15/23 2:32
CMR
0.12
0.698
6/15/23 2:32
CMR
0.12
0.698
6/15/23 2:32
CMR
0.14
0.698
6/15/23 2:32
CMR
0.17
0.698
6/15/23 2:32
CMR
0.12
0.698
6/15/23 2:32
CMR
0.13
0.698
6/15/23 2:32
CMR
0.11
0.698
6/15/23 2:32
CMR
0.10
0.698
6/15/23 2:32
CMR
0.11
0.698
6/15/23 2:32
CMR
0.087
0.698
6/15/23 2:32
CMR
0.082
0.698
6/15/23 2:32
CMR
0.081
0.698
6/15/23 2:32
CMR
0.24
0.698
6/15/23 2:32
CMR
0.10
0.698
6/15/23 2:32
CMR
6.6
4
6/16/23 13:01
CMR
0.64
0.698
6/15/23 2:32
CMR
0.088
0.698
6/15/23 2:32
CMR
0.11
0.698
6/15/23 2:32
CMR
0.091
0.698
6/15/23 2:32
CMR
0.31
0.698
6/15/23 2:32
CMR
0.64
0.698
6/15/23 2:32
CMR
0.071
0.698
6/15/23 2:32
CMR
0.59
0.698
6/15/23 2:32
CMR
0.097
0.698
6/15/23 2:32
CMR
0.56
0.698
6/15/23 2:32
CMR
0.076
0.698
6/15/23 2:32
CMR
0.14
0.698
6/15/23 2:32
CMR
0.53
0.698
6/15/23 2:32
CMR
0.078
0.698
6/15/23 2:32
CMR
Page 43 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171309
Date Received: 6/9/2023
Sub Description/Location:
Initial Vacuum(in Hg): -29.25
Field Sample #: IA-15
Canister ID: 1730
Final Vacuum(in Hg): -8.5
Sample ID: 23F1309-20
Canister Size: 6 liter
Receipt Vacuum(in Hg): -8.6
Sample Matrix: Indoor air
Flow Controller ID: 3090
Flow Controller Type: Fixed -Orifice
Sampled: 6/4/2023 10:22
Sample Type: 24 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/15/23 2:32
CMR
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/15/23 2:32
CMR
Tetrahydrofuran
57
2.0
0.33
170
5.9
0.97
4
6/16/23 13:01
CMR
Toluene
50
0.20
0.11
190
0.75
0.43
4
6/16/23 13:01
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/15/23 2:32
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/15/23 2:32
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/15/23 2:32
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/15/23 2:32
CMR
Trichlorofluoromethane (Freon 11)
0.22
0.14
0.041
1.2
0.78
0.23
0.698
6/15/23 2:32
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.065
0.14
0.039
J 0.50
1.1
0.30
0.698
6/15/23 2:32
CMR
1,2,4-Trimethylbenzene
0.27
0.035
0.015
1.3
0.17
0.076
0.698
6/15/23 2:32
CMR
1,3,5-Trimethylbenzene
0.058
0.035
0.018
0.28
0.17
0.091
0.698
6/15/23 2:32
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/15/23 2:32
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/15/23 2:32
CMR
m&p-Xylene
3.0
0.070
0.039
13
0.30
0.17
0.698
6/15/23 2:32
CMR
o-Xylene
1.1
0.035
0.018
5.0
0.15
0.078
0.698
6/15/23 2:32
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 92.7 70-130 6/16/23 13:01
4-Bromofluorobenzene (1) 97.6 70-130 6/15/23 2:32
Page 44 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-24
Sample ID: 23F1309-21
Sample Matrix: Indoor air
Sampled: 6/4/2023 10:33
Sample Description/Location:
Sub Description/Location:
Canister ID: 1931
Canister Size: 6 liter
Flow Controller ID: 3469
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -28.5
Final Vacuum(in Hg): -7
Receipt Vacuum(in Hg): -8.4
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual
Results
RI
MDL
Dilution
Analyzed
Analyst
Acetone
9.3
1.4
0.84
22
3.3
2.0
0.698
6/15/23 3:04
CMR
Benzene
0.20
0.035
0.026
0.64
0.11
0.084
0.698
6/15/23 3:04
CMR
Benzyl chloride
ND
0.14
0.031
ND
0.72
0.16
0.698
6/15/23 3:04
CMR
Bromodichloromethane
ND
0.035
0.024
ND
0.23
0.16
0.698
6/15/23 3:04
CMR
Bromoform
ND
0.035
0.024
ND
0.36
0.25
0.698
6/15/23 3:04
CMR
Bromomethane
ND
0.035
0.023
ND
0.14
0.090
0.698
6/15/23 3:04
CMR
1,3-Butadiene
ND
0.035
0.029
ND
0.077
0.065
0.698
6/15/23 3:04
CMR
2-Butanone (MEK)
3.6
1.4
0.37
L-05
11
4.1
1.1
0.698
6/15/23 3:04
CMR
Carbon Disulfide
ND
0.35
0.032
ND
1.1
0.10
0.698
6/15/23 3:04
CMR
Carbon Tetrachloride
0.077
0.035
0.028
0.49
0.22
0.17
0.698
6/15/23 3:04
CMR
Chlorobenzene
ND
0.035
0.023
ND
0.16
0.11
0.698
6/15/23 3:04
CMR
Chloroethane
ND
0.035
0.031
ND
0.092
0.082
0.698
6/15/23 3:04
CMR
Chloroform
ND
0.035
0.033
ND
0.17
0.16
0.698
6/15/23 3:04
CMR
Chloromethane
0.54
0.070
0.028
1.1
0.14
0.057
0.698
6/15/23 3:04
CMR
Cyclohexane
0.029
0.035
0.021
J
0.098
0.12
0.073
0.698
6/15/23 3:04
CMR
Dibromochloromethane
ND
0.035
0.023
ND
0.30
0.20
0.698
6/15/23 3:04
CMR
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
0.16
0.698
6/15/23 3:04
CMR
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
0.12
0.698
6/15/23 3:04
CMR
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
0.12
0.698
6/15/23 3:04
CMR
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
0.14
0.698
6/15/23 3:04
CMR
Dichlorodifluoromethane (Freon 12)
0.52
0.035
0.034
2.6
0.17
0.17
0.698
6/15/23 3:04
CMR
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
0.12
0.698
6/15/23 3:04
CMR
1,2-Dichloroethane
ND
0.035
0.032
ND
0.14
0.13
0.698
6/15/23 3:04
CMR
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/15/23 3:04
CMR
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
0.10
0.698
6/15/23 3:04
CMR
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/15/23 3:04
CMR
1,2-Dichloropropane
ND
0.035
0.019
ND
0.16
0.087
0.698
6/15/23 3:04
CMR
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.082
0.698
6/15/23 3:04
CMR
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.081
0.698
6/15/23 3:04
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
0.24
0.698
6/15/23 3:04
CMR
1,4-Dioxane
ND
0.35
0.029
ND
1.3
0.10
0.698
6/15/23 3:04
CMR
Ethanol
9.1
1.4
0.62
17
2.6
1.2
0.698
6/15/23 3:04
CMR
Ethyl Acetate
0.27
0.35
0.18
J
0.97
1.3
0.64
0.698
6/15/23 3:04
CMR
Ethylbenzene
0.066
0.035
0.020
0.28
0.15
0.088
0.698
6/15/23 3:04
CMR
4-Ethyltoluene
ND
0.035
0.021
ND
0.17
0.11
0.698
6/15/23 3:04
CMR
Heptane
0.066
0.035
0.022
0.27
0.14
0.091
0.698
6/15/23 3:04
CMR
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
0.31
0.698
6/15/23 3:04
CMR
Hexane
ND
1.4
0.18
ND
4.9
0.64
0.698
6/15/23 3:04
CMR
2-Hexanone (MBK)
0.10
0.14
0.017
J
0.41
0.57
0.071
0.698
6/15/23 3:04
CMR
Isopropanol
0.47
1.4
0.24
J
1.2
3.4
0.59
0.698
6/15/23 3:04
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
0.097
0.698
6/15/23 3:04
CMR
Methylene Chloride
ND
0.35
0.16
ND
1.2
0.56
0.698
6/15/23 3:04
CMR
4-Methyl-2-pentanone (MIBK)
0.055
0.035
0.019
0.23
0.14
0.076
0.698
6/15/23 3:04
CMR
Naphthalene
ND
0.035
0.026
Z-01
ND
0.18
0.14
0.698
6/15/23 3:04
CMR
Propene
0.50
1.4
0.31
J
0.87
2.4
0.53
0.698
6/15/23 3:04
CMR
Styrene
0.23
0.035
0.018
0.98
0.15
0.078
0.698
6/15/23 3:04
CMR
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/15/23 3:04
CMR
Page 45 of 102

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-24
Sample ID: 23F1309-21
Sample Matrix: Indoor air
Sampled: 6/4/2023 10:33
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 1931
Canister Size: 6 liter
Flow Controller ID: 3469
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -28.5
Final Vacuum(in Hg): -7
Receipt Vacuum(in Hg): -8.4
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/15/23 3:04
CMR
Tetrahydrofuran
7.2
0.35
0.057
21
1.0
0.17
0.698
6/15/23 3:04
CMR
Toluene
1.2
0.035
0.020
4.7
0.13
0.075
0.698
6/15/23 3:04
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/15/23 3:04
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/15/23 3:04
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/15/23 3:04
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/15/23 3:04
CMR
Trichlorofluoromethane (Freon 11)
0.22
0.14
0.041
1.2
0.78
0.23
0.698
6/15/23 3:04
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.066
0.14
0.039
J 0.50
1.1
0.30
0.698
6/15/23 3:04
CMR
1,2,4-Trimethylbenzene
0.057
0.035
0.015
0.28
0.17
0.076
0.698
6/15/23 3:04
CMR
1,3,5-Trimethylbenzene
ND
0.035
0.018
ND
0.17
0.091
0.698
6/15/23 3:04
CMR
Vinyl Acetate
0.98
0.70
0.19
3.4
2.5
0.66
0.698
6/15/23 3:04
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/15/23 3:04
CMR
m&p-Xylene
0.19
0.070
0.039
0.83
0.30
0.17
0.698
6/15/23 3:04
CMR
o-Xylene
0.093
0.035
0.018
0.40
0.15
0.078
0.698
6/15/23 3:04
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
96.2
% REC Limits
70-130
6/15/23 3:04
Page 46 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-25
Sample ID: 23F1309-22
Sample Matrix: Indoor air
Sampled: 6/4/2023 10:38
Sample Description/Location:
Sub Description/Location:
Canister ID: 1987
Canister Size: 6 liter
Flow Controller ID: 3265
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -6
Receipt Vacuum(in Hg): -6.8
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual
Results
RI
MDL
Dilution
Analyzed
Analyst
Acetone
14
1.4
0.84
33
3.3
2.0
0.698
6/15/23 3:35
CMR
Benzene
0.17
0.035
0.026
0.55
0.11
0.084
0.698
6/15/23 3:35
CMR
Benzyl chloride
ND
0.14
0.031
ND
0.72
0.16
0.698
6/15/23 3:35
CMR
Bromodichloromethane
ND
0.035
0.024
ND
0.23
0.16
0.698
6/15/23 3:35
CMR
Bromoform
ND
0.035
0.024
ND
0.36
0.25
0.698
6/15/23 3:35
CMR
Bromomethane
ND
0.035
0.023
ND
0.14
0.090
0.698
6/15/23 3:35
CMR
1,3-Butadiene
ND
0.035
0.029
ND
0.077
0.065
0.698
6/15/23 3:35
CMR
2-Butanone (MEK)
3.8
1.4
0.37
L-05
11
4.1
1.1
0.698
6/15/23 3:35
CMR
Carbon Disulfide
ND
0.35
0.032
ND
1.1
0.10
0.698
6/15/23 3:35
CMR
Carbon Tetrachloride
0.080
0.035
0.028
0.50
0.22
0.17
0.698
6/15/23 3:35
CMR
Chlorobenzene
ND
0.035
0.023
ND
0.16
0.11
0.698
6/15/23 3:35
CMR
Chloroethane
ND
0.035
0.031
ND
0.092
0.082
0.698
6/15/23 3:35
CMR
Chloroform
ND
0.035
0.033
ND
0.17
0.16
0.698
6/15/23 3:35
CMR
Chloromethane
0.60
0.070
0.028
1.2
0.14
0.057
0.698
6/15/23 3:35
CMR
Cyclohexane
0.033
0.035
0.021
J
0.12
0.12
0.073
0.698
6/15/23 3:35
CMR
Dibromochloromethane
ND
0.035
0.023
ND
0.30
0.20
0.698
6/15/23 3:35
CMR
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
0.16
0.698
6/15/23 3:35
CMR
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
0.12
0.698
6/15/23 3:35
CMR
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
0.12
0.698
6/15/23 3:35
CMR
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
0.14
0.698
6/15/23 3:35
CMR
Dichlorodifluoromethane (Freon 12)
0.52
0.035
0.034
2.6
0.17
0.17
0.698
6/15/23 3:35
CMR
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
0.12
0.698
6/15/23 3:35
CMR
1,2-Dichloroethane
ND
0.035
0.032
ND
0.14
0.13
0.698
6/15/23 3:35
CMR
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/15/23 3:35
CMR
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
0.10
0.698
6/15/23 3:35
CMR
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/15/23 3:35
CMR
1,2-Dichloropropane
ND
0.035
0.019
ND
0.16
0.087
0.698
6/15/23 3:35
CMR
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.082
0.698
6/15/23 3:35
CMR
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.081
0.698
6/15/23 3:35
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
0.24
0.698
6/15/23 3:35
CMR
1,4-Dioxane
ND
0.35
0.029
ND
1.3
0.10
0.698
6/15/23 3:35
CMR
Ethanol
7.6
1.4
0.62
14
2.6
1.2
0.698
6/15/23 3:35
CMR
Ethyl Acetate
ND
0.35
0.18
ND
1.3
0.64
0.698
6/15/23 3:35
CMR
Ethylbenzene
0.18
0.035
0.020
0.78
0.15
0.088
0.698
6/15/23 3:35
CMR
4-Ethyltoluene
0.031
0.035
0.021
J
0.15
0.17
0.11
0.698
6/15/23 3:35
CMR
Heptane
0.057
0.035
0.022
0.23
0.14
0.091
0.698
6/15/23 3:35
CMR
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
0.31
0.698
6/15/23 3:35
CMR
Hexane
ND
1.4
0.18
ND
4.9
0.64
0.698
6/15/23 3:35
CMR
2-Hexanone (MBK)
0.084
0.14
0.017
J
0.35
0.57
0.071
0.698
6/15/23 3:35
CMR
Isopropanol
0.57
1.4
0.24
J
1.4
3.4
0.59
0.698
6/15/23 3:35
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
0.097
0.698
6/15/23 3:35
CMR
Methylene Chloride
ND
0.35
0.16
ND
1.2
0.56
0.698
6/15/23 3:35
CMR
4-Methyl-2-pentanone (MIBK)
0.061
0.035
0.019
0.25
0.14
0.076
0.698
6/15/23 3:35
CMR
Naphthalene
ND
0.035
0.026
Z-01
ND
0.18
0.14
0.698
6/15/23 3:35
CMR
Propene
0.39
1.4
0.31
J
0.67
2.4
0.53
0.698
6/15/23 3:35
CMR
Styrene
0.15
0.035
0.018
0.66
0.15
0.078
0.698
6/15/23 3:35
CMR
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/15/23 3:35
CMR
Page 47 of 102

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-25
Sample ID: 23F1309-22
Sample Matrix: Indoor air
Sampled: 6/4/2023 10:3 8
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 1987
Canister Size: 6 liter
Flow Controller ID: 3265
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -6
Receipt Vacuum(in Hg): -6.8
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/15/23 3:35
CMR
Tetrahydrofuran
14
0.35
0.057
40
1.0
0.17
0.698
6/15/23 3:35
CMR
Toluene
7.6
0.035
0.020
29
0.13
0.075
0.698
6/15/23 3:35
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/15/23 3:35
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/15/23 3:35
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/15/23 3:35
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/15/23 3:35
CMR
Trichlorofluoromethane (Freon 11)
0.21
0.14
0.041
1.2
0.78
0.23
0.698
6/15/23 3:35
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.062
0.14
0.039
J 0.48
1.1
0.30
0.698
6/15/23 3:35
CMR
1,2,4-Trimethylbenzene
0.19
0.035
0.015
0.92
0.17
0.076
0.698
6/15/23 3:35
CMR
1,3,5-Trimethylbenzene
0.050
0.035
0.018
0.25
0.17
0.091
0.698
6/15/23 3:35
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/15/23 3:35
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/15/23 3:35
CMR
m&p-Xylene
0.70
0.070
0.039
3.0
0.30
0.17
0.698
6/15/23 3:35
CMR
o-Xylene
0.30
0.035
0.018
1.3
0.15
0.078
0.698
6/15/23 3:35
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
96.2
% REC Limits
70-130
6/15/23 3:35
Page 48 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-25 DUP
Sample ID: 23F1309-23
Sample Matrix: Indoor air
Sampled: 6/4/2023 10:38
Sample Description/Location:
Sub Description/Location:
Canister ID: 2041
Canister Size: 6 liter
Flow Controller ID: 3458
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -7.75
Receipt Vacuum(in Hg): -7.3
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual
Results
RI
MDL
Dilution
Analyzed
Analyst
Acetone
13
1.4
0.84
32
3.3
2.0
0.698
6/15/23 4:06
CMR
Benzene
0.15
0.035
0.026
0.47
0.11
0.084
0.698
6/15/23 4:06
CMR
Benzyl chloride
ND
0.14
0.031
ND
0.72
0.16
0.698
6/15/23 4:06
CMR
Bromodichloromethane
ND
0.035
0.024
ND
0.23
0.16
0.698
6/15/23 4:06
CMR
Bromoform
ND
0.035
0.024
ND
0.36
0.25
0.698
6/15/23 4:06
CMR
Bromomethane
ND
0.035
0.023
ND
0.14
0.090
0.698
6/15/23 4:06
CMR
1,3-Butadiene
ND
0.035
0.029
ND
0.077
0.065
0.698
6/15/23 4:06
CMR
2-Butanone (MEK)
3.8
1.4
0.37
L-05
11
4.1
1.1
0.698
6/15/23 4:06
CMR
Carbon Disulfide
ND
0.35
0.032
ND
1.1
0.10
0.698
6/15/23 4:06
CMR
Carbon Tetrachloride
0.080
0.035
0.028
0.50
0.22
0.17
0.698
6/15/23 4:06
CMR
Chlorobenzene
ND
0.035
0.023
ND
0.16
0.11
0.698
6/15/23 4:06
CMR
Chloroethane
ND
0.035
0.031
ND
0.092
0.082
0.698
6/15/23 4:06
CMR
Chloroform
ND
0.035
0.033
ND
0.17
0.16
0.698
6/15/23 4:06
CMR
Chloromethane
0.59
0.070
0.028
1.2
0.14
0.057
0.698
6/15/23 4:06
CMR
Cyclohexane
0.040
0.035
0.021
0.14
0.12
0.073
0.698
6/15/23 4:06
CMR
Dibromochloromethane
ND
0.035
0.023
ND
0.30
0.20
0.698
6/15/23 4:06
CMR
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
0.16
0.698
6/15/23 4:06
CMR
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
0.12
0.698
6/15/23 4:06
CMR
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
0.12
0.698
6/15/23 4:06
CMR
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
0.14
0.698
6/15/23 4:06
CMR
Dichlorodifluoromethane (Freon 12)
0.56
0.035
0.034
2.8
0.17
0.17
0.698
6/15/23 4:06
CMR
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
0.12
0.698
6/15/23 4:06
CMR
1,2-Dichloroethane
ND
0.035
0.032
ND
0.14
0.13
0.698
6/15/23 4:06
CMR
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/15/23 4:06
CMR
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
0.10
0.698
6/15/23 4:06
CMR
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/15/23 4:06
CMR
1,2-Dichloropropane
ND
0.035
0.019
ND
0.16
0.087
0.698
6/15/23 4:06
CMR
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.082
0.698
6/15/23 4:06
CMR
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.081
0.698
6/15/23 4:06
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
0.24
0.698
6/15/23 4:06
CMR
1,4-Dioxane
ND
0.35
0.029
ND
1.3
0.10
0.698
6/15/23 4:06
CMR
Ethanol
7.9
1.4
0.62
15
2.6
1.2
0.698
6/15/23 4:06
CMR
Ethyl Acetate
0.18
0.35
0.18
J
0.65
1.3
0.64
0.698
6/15/23 4:06
CMR
Ethylbenzene
0.18
0.035
0.020
0.77
0.15
0.088
0.698
6/15/23 4:06
CMR
4-Ethyltoluene
0.033
0.035
0.021
J
0.16
0.17
0.11
0.698
6/15/23 4:06
CMR
Heptane
0.052
0.035
0.022
0.21
0.14
0.091
0.698
6/15/23 4:06
CMR
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
0.31
0.698
6/15/23 4:06
CMR
Hexane
ND
1.4
0.18
ND
4.9
0.64
0.698
6/15/23 4:06
CMR
2-Hexanone (MBK)
0.084
0.14
0.017
J
0.34
0.57
0.071
0.698
6/15/23 4:06
CMR
Isopropanol
0.49
1.4
0.24
J
1.2
3.4
0.59
0.698
6/15/23 4:06
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
0.097
0.698
6/15/23 4:06
CMR
Methylene Chloride
ND
0.35
0.16
ND
1.2
0.56
0.698
6/15/23 4:06
CMR
4-Methyl-2-pentanone (MIBK)
0.060
0.035
0.019
0.25
0.14
0.076
0.698
6/15/23 4:06
CMR
Naphthalene
ND
0.035
0.026
Z-01
ND
0.18
0.14
0.698
6/15/23 4:06
CMR
Propene
0.39
1.4
0.31
J
0.67
2.4
0.53
0.698
6/15/23 4:06
CMR
Styrene
0.16
0.035
0.018
0.66
0.15
0.078
0.698
6/15/23 4:06
CMR
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/15/23 4:06
CMR
Page 49 of 102

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-25 DUP
Sample ID: 23F1309-23
Sample Matrix: Indoor air
Sampled: 6/4/2023 10:3 8
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2041
Canister Size: 6 liter
Flow Controller ID: 3458
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -7.75
Receipt Vacuum(in Hg): -7.3
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/15/23 4:06
CMR
Tetrahydrofuran
14
0.35
0.057
41
1.0
0.17
0.698
6/15/23 4:06
CMR
Toluene
7.7
0.035
0.020
29
0.13
0.075
0.698
6/15/23 4:06
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/15/23 4:06
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/15/23 4:06
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/15/23 4:06
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/15/23 4:06
CMR
Trichlorofluoromethane (Freon 11)
0.21
0.14
0.041
1.2
0.78
0.23
0.698
6/15/23 4:06
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.061
0.14
0.039
J 0.47
1.1
0.30
0.698
6/15/23 4:06
CMR
1,2,4-Trimethylbenzene
0.20
0.035
0.015
0.96
0.17
0.076
0.698
6/15/23 4:06
CMR
1,3,5-Trimethylbenzene
0.052
0.035
0.018
0.25
0.17
0.091
0.698
6/15/23 4:06
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/15/23 4:06
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/15/23 4:06
CMR
m&p-Xylene
0.72
0.070
0.039
3.1
0.30
0.17
0.698
6/15/23 4:06
CMR
o-Xylene
0.32
0.035
0.018
1.4
0.15
0.078
0.698
6/15/23 4:06
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
97.4
% REC Limits
70-130
6/15/23 4:06
Page 50 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-21
Sample ID: 23F1309-24
Sample Matrix: Indoor air
Sampled: 6/4/2023 10:45
Sample Description/Location:
Sub Description/Location:
Canister ID: 1002
Canister Size: 6 liter
Flow Controller ID: 3454
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -29.25
Final Vacuum(in Hg): -8.25
Receipt Vacuum(in Hg): -7.6
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual
Results
RI
MDL
Dilution
Analyzed
Analyst
Acetone
17
1.4
0.84
41
3.3
2.0
0.698
6/15/23 4:37
CMR
Benzene
0.21
0.035
0.026
0.66
0.11
0.084
0.698
6/15/23 4:37
CMR
Benzyl chloride
ND
0.14
0.031
ND
0.72
0.16
0.698
6/15/23 4:37
CMR
Bromodichloromethane
ND
0.035
0.024
ND
0.23
0.16
0.698
6/15/23 4:37
CMR
Bromoform
ND
0.035
0.024
ND
0.36
0.25
0.698
6/15/23 4:37
CMR
Bromomethane
ND
0.035
0.023
ND
0.14
0.090
0.698
6/15/23 4:37
CMR
1,3-Butadiene
ND
0.035
0.029
ND
0.077
0.065
0.698
6/15/23 4:37
CMR
2-Butanone (MEK)
6.5
1.4
0.37
L-05
19
4.1
1.1
0.698
6/15/23 4:37
CMR
Carbon Disulfide
0.035
0.35
0.032
J
0.11
1.1
0.10
0.698
6/15/23 4:37
CMR
Carbon Tetrachloride
0.077
0.035
0.028
0.48
0.22
0.17
0.698
6/15/23 4:37
CMR
Chlorobenzene
ND
0.035
0.023
ND
0.16
0.11
0.698
6/15/23 4:37
CMR
Chloroethane
ND
0.035
0.031
ND
0.092
0.082
0.698
6/15/23 4:37
CMR
Chloroform
ND
0.035
0.033
ND
0.17
0.16
0.698
6/15/23 4:37
CMR
Chloromethane
0.56
0.070
0.028
1.1
0.14
0.057
0.698
6/15/23 4:37
CMR
Cyclohexane
0.15
0.035
0.021
0.52
0.12
0.073
0.698
6/15/23 4:37
CMR
Dibromochloromethane
ND
0.035
0.023
ND
0.30
0.20
0.698
6/15/23 4:37
CMR
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
0.16
0.698
6/15/23 4:37
CMR
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
0.12
0.698
6/15/23 4:37
CMR
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
0.12
0.698
6/15/23 4:37
CMR
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
0.14
0.698
6/15/23 4:37
CMR
Dichlorodifluoromethane (Freon 12)
0.53
0.035
0.034
2.6
0.17
0.17
0.698
6/15/23 4:37
CMR
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
0.12
0.698
6/15/23 4:37
CMR
1,2-Dichloroethane
ND
0.035
0.032
ND
0.14
0.13
0.698
6/15/23 4:37
CMR
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/15/23 4:37
CMR
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
0.10
0.698
6/15/23 4:37
CMR
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/15/23 4:37
CMR
1,2-Dichloropropane
ND
0.035
0.019
ND
0.16
0.087
0.698
6/15/23 4:37
CMR
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.082
0.698
6/15/23 4:37
CMR
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.081
0.698
6/15/23 4:37
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
0.24
0.698
6/15/23 4:37
CMR
1,4-Dioxane
ND
0.35
0.029
ND
1.3
0.10
0.698
6/15/23 4:37
CMR
Ethanol
11
1.4
0.62
21
2.6
1.2
0.698
6/15/23 4:37
CMR
Ethyl Acetate
0.21
0.35
0.18
J
0.76
1.3
0.64
0.698
6/15/23 4:37
CMR
Ethylbenzene
0.27
0.035
0.020
1.2
0.15
0.088
0.698
6/15/23 4:37
CMR
4-Ethyltoluene
0.038
0.035
0.021
0.19
0.17
0.11
0.698
6/15/23 4:37
CMR
Heptane
0.13
0.035
0.022
0.54
0.14
0.091
0.698
6/15/23 4:37
CMR
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
0.31
0.698
6/15/23 4:37
CMR
Hexane
0.46
1.4
0.18
J
1.6
4.9
0.64
0.698
6/15/23 4:37
CMR
2-Hexanone (MBK)
0.066
0.14
0.017
J
0.27
0.57
0.071
0.698
6/15/23 4:37
CMR
Isopropanol
0.51
1.4
0.24
J
1.2
3.4
0.59
0.698
6/15/23 4:37
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
0.097
0.698
6/15/23 4:37
CMR
Methylene Chloride
ND
0.35
0.16
ND
1.2
0.56
0.698
6/15/23 4:37
CMR
4-Methyl-2-pentanone (MIBK)
0.069
0.035
0.019
0.28
0.14
0.076
0.698
6/15/23 4:37
CMR
Naphthalene
ND
0.035
0.026
Z-01
ND
0.18
0.14
0.698
6/15/23 4:37
CMR
Propene
0.64
1.4
0.31
J
1.1
2.4
0.53
0.698
6/15/23 4:37
CMR
Styrene
0.089
0.035
0.018
0.38
0.15
0.078
0.698
6/15/23 4:37
CMR
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/15/23 4:37
CMR
Page 51 of 102

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-21
Sample ID: 23F1309-24
Sample Matrix: Indoor air
Sampled: 6/4/2023 10:45
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 1002
Canister Size: 6 liter
Flow Controller ID: 3454
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -29.25
Final Vacuum(in Hg): -8.25
Receipt Vacuum(in Hg): -7.6
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/15/23 4:37
CMR
Tetrahydrofuran
13
0.35
0.057
39
1.0
0.17
0.698
6/15/23 4:37
CMR
Toluene
1.2
0.035
0.020
4.4
0.13
0.075
0.698
6/15/23 4:37
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/15/23 4:37
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/15/23 4:37
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/15/23 4:37
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/15/23 4:37
CMR
Trichlorofluoromethane (Freon 11)
0.22
0.14
0.041
1.2
0.78
0.23
0.698
6/15/23 4:37
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.058
0.14
0.039
J 0.44
1.1
0.30
0.698
6/15/23 4:37
CMR
1,2,4-Trimethylbenzene
0.24
0.035
0.015
1.2
0.17
0.076
0.698
6/15/23 4:37
CMR
1,3,5-Trimethylbenzene
0.061
0.035
0.018
0.30
0.17
0.091
0.698
6/15/23 4:37
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/15/23 4:37
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/15/23 4:37
CMR
m&p-Xylene
1.0
0.070
0.039
4.4
0.30
0.17
0.698
6/15/23 4:37
CMR
o-Xylene
0.33
0.035
0.018
1.4
0.15
0.078
0.698
6/15/23 4:37
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
98.4
% REC Limits
70-130
6/15/23 4:37
Page 52 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: OA
Sample ID: 23F1309-25
Sample Matrix: Indoor air
Sampled: 6/4/2023 10:55
Sample Description/Location:
Sub Description/Location:
Canister ID: 1138
Canister Size: 6 liter
Flow Controller ID: 3264
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -7
Receipt Vacuum(in Hg): -7.6
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual
Results
RI
MDL
Dilution
Analyzed
Analyst
Acetone
5.7
1.4
0.84
14
3.3
2.0
0.698
6/15/23 5:08
CMR
Benzene
0.16
0.035
0.026
0.52
0.11
0.084
0.698
6/15/23 5:08
CMR
Benzyl chloride
ND
0.14
0.031
ND
0.72
0.16
0.698
6/15/23 5:08
CMR
Bromodichloromethane
ND
0.035
0.024
ND
0.23
0.16
0.698
6/15/23 5:08
CMR
Bromoform
ND
0.035
0.024
ND
0.36
0.25
0.698
6/15/23 5:08
CMR
Bromomethane
ND
0.035
0.023
ND
0.14
0.090
0.698
6/15/23 5:08
CMR
1,3-Butadiene
ND
0.035
0.029
ND
0.077
0.065
0.698
6/15/23 5:08
CMR
2-Butanone (MEK)
0.67
1.4
0.37
L-05, J
2.0
4.1
1.1
0.698
6/15/23 5:08
CMR
Carbon Disulfide
ND
0.35
0.032
ND
1.1
0.10
0.698
6/15/23 5:08
CMR
Carbon Tetrachloride
0.075
0.035
0.028
0.47
0.22
0.17
0.698
6/15/23 5:08
CMR
Chlorobenzene
ND
0.035
0.023
ND
0.16
0.11
0.698
6/15/23 5:08
CMR
Chloroethane
ND
0.035
0.031
ND
0.092
0.082
0.698
6/15/23 5:08
CMR
Chloroform
ND
0.035
0.033
ND
0.17
0.16
0.698
6/15/23 5:08
CMR
Chloromethane
0.61
0.070
0.028
1.3
0.14
0.057
0.698
6/15/23 5:08
CMR
Cyclohexane
ND
0.035
0.021
ND
0.12
0.073
0.698
6/15/23 5:08
CMR
Dibromochloromethane
ND
0.035
0.023
ND
0.30
0.20
0.698
6/15/23 5:08
CMR
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
0.16
0.698
6/15/23 5:08
CMR
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
0.12
0.698
6/15/23 5:08
CMR
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
0.12
0.698
6/15/23 5:08
CMR
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
0.14
0.698
6/15/23 5:08
CMR
Dichlorodifluoromethane (Freon 12)
0.52
0.035
0.034
2.6
0.17
0.17
0.698
6/15/23 5:08
CMR
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
0.12
0.698
6/15/23 5:08
CMR
1,2-Dichloroethane
ND
0.035
0.032
ND
0.14
0.13
0.698
6/15/23 5:08
CMR
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/15/23 5:08
CMR
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
0.10
0.698
6/15/23 5:08
CMR
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/15/23 5:08
CMR
1,2-Dichloropropane
ND
0.035
0.019
ND
0.16
0.087
0.698
6/15/23 5:08
CMR
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.082
0.698
6/15/23 5:08
CMR
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.081
0.698
6/15/23 5:08
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
0.24
0.698
6/15/23 5:08
CMR
1,4-Dioxane
ND
0.35
0.029
ND
1.3
0.10
0.698
6/15/23 5:08
CMR
Ethanol
4.7
1.4
0.62
8.9
2.6
1.2
0.698
6/15/23 5:08
CMR
Ethyl Acetate
ND
0.35
0.18
ND
1.3
0.64
0.698
6/15/23 5:08
CMR
Ethylbenzene
0.057
0.035
0.020
0.25
0.15
0.088
0.698
6/15/23 5:08
CMR
4-Ethyltoluene
ND
0.035
0.021
ND
0.17
0.11
0.698
6/15/23 5:08
CMR
Heptane
0.085
0.035
0.022
0.35
0.14
0.091
0.698
6/15/23 5:08
CMR
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
0.31
0.698
6/15/23 5:08
CMR
Hexane
ND
1.4
0.18
ND
4.9
0.64
0.698
6/15/23 5:08
CMR
2-Hexanone (MBK)
0.031
0.14
0.017
J
0.13
0.57
0.071
0.698
6/15/23 5:08
CMR
Isopropanol
0.28
1.4
0.24
J
0.69
3.4
0.59
0.698
6/15/23 5:08
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
0.097
0.698
6/15/23 5:08
CMR
Methylene Chloride
ND
0.35
0.16
ND
1.2
0.56
0.698
6/15/23 5:08
CMR
4-Methyl-2-pentanone (MIBK)
0.020
0.035
0.019
J
0.083
0.14
0.076
0.698
6/15/23 5:08
CMR
Naphthalene
ND
0.035
0.026
Z-01
ND
0.18
0.14
0.698
6/15/23 5:08
CMR
Propene
0.33
1.4
0.31
J
0.57
2.4
0.53
0.698
6/15/23 5:08
CMR
Styrene
0.029
0.035
0.018
J
0.12
0.15
0.078
0.698
6/15/23 5:08
CMR
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/15/23 5:08
CMR
Page 53 of 102

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: OA
Sample ID: 23F1309-25
Sample Matrix: Indoor air
Sampled: 6/4/2023 10:55
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 1138
Canister Size: 6 liter
Flow Controller ID: 3264
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -7
Receipt Vacuum(in Hg): -7.6
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/15/23
5:08
CMR
Tetrahydrofuran
0.25
0.35
0.057
J 0.73
1.0
0.17
0.698
6/15/23
5:08
CMR
Toluene
0.35
0.035
0.020
1.3
0.13
0.075
0.698
6/15/23
5:08
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/15/23
5:08
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/15/23
5:08
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/15/23
5:08
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/15/23
5:08
CMR
Trichlorofluoromethane (Freon 11)
0.21
0.14
0.041
1.2
0.78
0.23
0.698
6/15/23
5:08
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.061
0.14
0.039
J 0.47
1.1
0.30
0.698
6/15/23
5:08
CMR
1,2,4-Trimethylbenzene
0.050
0.035
0.015
0.24
0.17
0.076
0.698
6/15/23
5:08
CMR
1,3,5-Trimethylbenzene
ND
0.035
0.018
ND
0.17
0.091
0.698
6/15/23
5:08
CMR
Vinyl Acetate
ND
0.70
0.19
ND
2.5
0.66
0.698
6/15/23
5:08
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/15/23
5:08
CMR
m&p-Xylene
0.20
0.070
0.039
0.87
0.30
0.17
0.698
6/15/23
5:08
CMR
o-Xylene
0.066
0.035
0.018
0.29
0.15
0.078
0.698
6/15/23
5:08
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
97.1
% REC Limits
70-130
6/15/23 5:08
Page 54 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-22
Sample ID: 23FI309-26
Sample Matrix: Indoor air
Sampled: 6/4/2023 11:04
Sample Description/Location:
Sub Description/Location:
Canister ID: 1991
Canister Size: 6 liter
Flow Controller ID: 3504
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -8
Receipt Vacuum(in Hg): -7.7
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual
Results
RI
MDL
Dilution
Analyzed
Analyst
Acetone
16
1.4
0.84
39
3.3
2.0
0.698
6/15/23
5:39
CMR
Benzene
0.18
0.035
0.026
0.59
0.11
0.084
0.698
6/15/23
5:39
CMR
Benzyl chloride
ND
0.14
0.031
ND
0.72
0.16
0.698
6/15/23
5:39
CMR
Bromodichloromethane
ND
0.035
0.024
ND
0.23
0.16
0.698
6/15/23
5:39
CMR
Bromoform
ND
0.035
0.024
ND
0.36
0.25
0.698
6/15/23
5:39
CMR
Bromomethane
ND
0.035
0.023
ND
0.14
0.090
0.698
6/15/23
5:39
CMR
1,3-Butadiene
ND
0.035
0.029
ND
0.077
0.065
0.698
6/15/23
5:39
CMR
2-Butanone (MEK)
7.9
1.4
0.37
L-05
23
4.1
1.1
0.698
6/15/23
5:39
CMR
Carbon Disulfide
ND
0.35
0.032
ND
1.1
0.10
0.698
6/15/23
5:39
CMR
Carbon Tetrachloride
0.081
0.035
0.028
0.51
0.22
0.17
0.698
6/15/23
5:39
CMR
Chlorobenzene
ND
0.035
0.023
ND
0.16
0.11
0.698
6/15/23
5:39
CMR
Chloroethane
ND
0.035
0.031
ND
0.092
0.082
0.698
6/15/23
5:39
CMR
Chloroform
ND
0.035
0.033
ND
0.17
0.16
0.698
6/15/23
5:39
CMR
Chloromethane
0.58
0.070
0.028
1.2
0.14
0.057
0.698
6/15/23
5:39
CMR
Cyclohexane
0.23
0.035
0.021
0.79
0.12
0.073
0.698
6/15/23
5:39
CMR
Dibromochloromethane
ND
0.035
0.023
ND
0.30
0.20
0.698
6/15/23
5:39
CMR
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
0.16
0.698
6/15/23
5:39
CMR
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
0.12
0.698
6/15/23
5:39
CMR
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
0.12
0.698
6/15/23
5:39
CMR
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
0.14
0.698
6/15/23
5:39
CMR
Dichlorodifluoromethane (Freon 12)
0.53
0.035
0.034
2.6
0.17
0.17
0.698
6/15/23
5:39
CMR
1,I-Dichloroethane
ND
0.035
0.030
ND
0.14
0.12
0.698
6/15/23
5:39
CMR
1,2-Dichloroethane
ND
0.035
0.032
ND
0.14
0.13
0.698
6/15/23
5:39
CMR
1,I-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/15/23
5:39
CMR
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
0.10
0.698
6/15/23
5:39
CMR
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
0.11
0.698
6/15/23
5:39
CMR
1,2-Dichloropropane
ND
0.035
0.019
ND
0.16
0.087
0.698
6/15/23
5:39
CMR
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.082
0.698
6/15/23
5:39
CMR
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
0.081
0.698
6/15/23
5:39
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
0.24
0.698
6/15/23
5:39
CMR
1,4-Dioxane
ND
0.35
0.029
ND
1.3
0.10
0.698
6/15/23
5:39
CMR
Ethanol
12
1.4
0.62
22
2.6
1.2
0.698
6/15/23
5:39
CMR
Ethyl Acetate
0.54
0.35
0.18
2.0
1.3
0.64
0.698
6/15/23
5:39
CMR
Ethylbenzene
0.43
0.035
0.020
1.9
0.15
0.088
0.698
6/15/23
5:39
CMR
4-Ethyltoluene
0.041
0.035
0.021
0.20
0.17
0.11
0.698
6/15/23
5:39
CMR
Heptane
0.15
0.035
0.022
0.63
0.14
0.091
0.698
6/15/23
5:39
CMR
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
0.31
0.698
6/15/23
5:39
CMR
Hexane
ND
1.4
0.18
ND
4.9
0.64
0.698
6/15/23
5:39
CMR
2-Hexanone (MBK)
0.11
0.14
0.017
J
0.44
0.57
0.071
0.698
6/15/23
5:39
CMR
Isopropanol
0.77
1.4
0.24
J
1.9
3.4
0.59
0.698
6/15/23
5:39
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
0.097
0.698
6/15/23
5:39
CMR
Methylene Chloride
ND
0.35
0.16
ND
1.2
0.56
0.698
6/15/23
5:39
CMR
4-Methyl-2-pentanone (MIBK)
0.089
0.035
0.019
0.37
0.14
0.076
0.698
6/15/23
5:39
CMR
Naphthalene
ND
0.035
0.026
Z-01
ND
0.18
0.14
0.698
6/15/23
5:39
CMR
Propene
0.96
1.4
0.31
J
1.7
2.4
0.53
0.698
6/15/23
5:39
CMR
Styrene
0.091
0.035
0.018
0.39
0.15
0.078
0.698
6/15/23
5:39
CMR
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/15/23
5:39
CMR
Page 55 of 102

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/9/2023
Field Sample #: IA-22
Sample ID: 23F1309-26
Sample Matrix: Indoor air
Sampled: 6/4/2023 11:04
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 1991
Canister Size: 6 liter
Flow Controller ID: 3504
Sample Type: 24 hr
Work Order: 23171309
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -8
Receipt Vacuum(in Hg): -7.7
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/15/23
5:39
CMR
Tetrahydrofuran
11
0.35
0.057
32
1.0
0.17
0.698
6/15/23
5:39
CMR
Toluene
1.1
0.035
0.020
4.0
0.13
0.075
0.698
6/15/23
5:39
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/15/23
5:39
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/15/23
5:39
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/15/23
5:39
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/15/23
5:39
CMR
Trichlorofluoromethane (Freon 11)
0.22
0.14
0.041
1.2
0.78
0.23
0.698
6/15/23
5:39
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.060
0.14
0.039
J 0.46
1.1
0.30
0.698
6/15/23
5:39
CMR
1,2,4-Trimethylbenzene
0.27
0.035
0.015
1.3
0.17
0.076
0.698
6/15/23
5:39
CMR
1,3,5-Trimethylbenzene
0.068
0.035
0.018
0.34
0.17
0.091
0.698
6/15/23
5:39
CMR
Vinyl Acetate
1.6
0.70
0.19
5.5
2.5
0.66
0.698
6/15/23
5:39
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/15/23
5:39
CMR
m&p-Xylene
1.6
0.070
0.039
7.0
0.30
0.17
0.698
6/15/23
5:39
CMR
o-Xylene
0.50
0.035
0.018
2.2
0.15
0.078
0.698
6/15/23
5:39
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
96.9
% REC Limits
70-130
6/15/23 5:39
Page 56 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-4
Canister ID: 1856
Sample ID: 23F1309-27
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3711
Sampled: 6/4/2023 11:08
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -28.5
Final Vacuum(in Hg): -9.25
Receipt Vacuum(in Hg): -9.5
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RI MDL Dilution Analyzed Analyst
Acetone
22
1.4
0.84
51
3.3
Benzene
0.17
0.035
0.026
0.53
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
ND
0.035
0.023
ND
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
2.4
1.4
0.37
L-05
7.0
4.1
Carbon Disulfide
0.034
0.35
0.032
J
0.11
1.1
Carbon Tetrachloride
0.075
0.035
0.028
0.47
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
ND
0.035
0.031
ND
0.092
Chloroform
ND
0.035
0.033
ND
0.17
Chloromethane
0.59
0.070
0.028
1.2
0.14
Cyclohexane
0.39
0.035
0.021
1.3
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.53
0.035
0.034
2.6
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
0.042
0.035
0.032
0.17
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropane
ND
0.035
0.019
ND
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
ND
0.35
0.029
ND
1.3
Ethanol
23
1.4
0.62
44
2.6
Ethyl Acetate
0.33
0.35
0.18
J
1.2
1.3
Ethylbenzene
0.15
0.035
0.020
0.63
0.15
4-Ethyltoluene
ND
0.035
0.021
ND
0.17
Heptane
0.27
0.035
0.022
1.1
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
ND
1.4
0.18
ND
4.9
2-Hexanone (MBK)
0.15
0.14
0.017
0.61
0.57
Isopropanol
1.9
1.4
0.24
4.7
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
0.24
0.035
0.019
0.98
0.14
Naphthalene
0.029
0.035
0.026
L-05, V-06,
0.15
0.18
Z-01, J
Propene
0.50
1.4
0.31
J
0.86
2.4
Styrene
0.13
0.035
0.018
0.55
0.15
2.0
0.698
6/15/23 6:10
CMR
0.084
0.698
6/15/23 6:10
CMR
0.16
0.698
6/15/23 6:10
CMR
0.16
0.698
6/15/23 6:10
CMR
0.25
0.698
6/15/23 6:10
CMR
0.090
0.698
6/15/23 6:10
CMR
0.065
0.698
6/15/23 6:10
CMR
1.1
0.698
6/15/23 6:10
CMR
0.10
0.698
6/15/23 6:10
CMR
0.17
0.698
6/15/23 6:10
CMR
0.11
0.698
6/15/23 6:10
CMR
0.082
0.698
6/15/23 6:10
CMR
0.16
0.698
6/15/23 6:10
CMR
0.057
0.698
6/15/23 6:10
CMR
0.073
0.698
6/15/23 6:10
CMR
0.20
0.698
6/15/23 6:10
CMR
0.16
0.698
6/15/23 6:10
CMR
0.12
0.698
6/15/23 6:10
CMR
0.12
0.698
6/15/23 6:10
CMR
0.14
0.698
6/15/23 6:10
CMR
0.17
0.698
6/15/23 6:10
CMR
0.12
0.698
6/15/23 6:10
CMR
0.13
0.698
6/15/23 6:10
CMR
0.11
0.698
6/15/23 6:10
CMR
0.10
0.698
6/15/23 6:10
CMR
0.11
0.698
6/15/23 6:10
CMR
0.087
0.698
6/15/23 6:10
CMR
0.082
0.698
6/15/23 6:10
CMR
0.081
0.698
6/15/23 6:10
CMR
0.24
0.698
6/15/23 6:10
CMR
0.10
0.698
6/15/23 6:10
CMR
1.2
0.698
6/15/23 6:10
CMR
0.64
0.698
6/15/23 6:10
CMR
0.088
0.698
6/15/23 6:10
CMR
0.11
0.698
6/15/23 6:10
CMR
0.091
0.698
6/15/23 6:10
CMR
0.31
0.698
6/15/23 6:10
CMR
0.64
0.698
6/15/23 6:10
CMR
0.071
0.698
6/15/23 6:10
CMR
0.59
0.698
6/15/23 6:10
CMR
0.097
0.698
6/15/23 6:10
CMR
0.56
0.698
6/15/23 6:10
CMR
0.076
0.698
6/15/23 6:10
CMR
0.14
0.698
6/15/23 6:10
CMR
0.53
0.698
6/15/23 6:10
CMR
0.078
0.698
6/15/23 6:10
CMR
Page 57 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171309
Date Received: 6/9/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28.5
Field Sample #: IA-4
Canister ID: 1856
Final Vacuum(in Hg): -9.25
Sample ID: 23F1309-27
Canister Size: 6 liter
Receipt Vacuum(in Hg): -9.5
Sample Matrix: Indoor air
Flow Controller ID: 3711
Flow Controller Type: Fixed -Orifice
Sampled: 6/4/2023 11:08
Sample Type: 24 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/15/23 6:10
CMR
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/15/23 6:10
CMR
Tetrahydrofuran
1.2
0.35
0.057
3.7
1.0
0.17
0.698
6/15/23 6:10
CMR
Toluene
1.3
0.035
0.020
4.7
0.13
0.075
0.698
6/15/23 6:10
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/15/23 6:10
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/15/23 6:10
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/15/23 6:10
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/15/23 6:10
CMR
Trichlorofluoromethane (Freon 11)
0.22
0.14
0.041
1.2
0.78
0.23
0.698
6/15/23 6:10
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.063
0.14
0.039
J 0.48
1.1
0.30
0.698
6/15/23 6:10
CMR
1,2,4-Trimethylbenzene
0.093
0.035
0.015
0.46
0.17
0.076
0.698
6/15/23 6:10
CMR
1,3,5-Trimethylbenzene
0.023
0.035
0.018
J 0.11
0.17
0.091
0.698
6/15/23 6:10
CMR
Vinyl Acetate
0.73
0.70
0.19
2.6
2.5
0.66
0.698
6/15/23 6:10
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/15/23 6:10
CMR
m&p-Xylene
0.52
0.070
0.039
2.3
0.30
0.17
0.698
6/15/23 6:10
CMR
o-Xylene
0.24
0.035
0.018
1.0
0.15
0.078
0.698
6/15/23 6:10
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 97.5 70-130 6/15/23 6:10
Page 58 of 1 2

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Date Received: 6/9/2023
Sub Description/Location:
Field Sample #: IA-8
Canister ID: 1225
Sample ID: 23F1309-28
Canister Size: 6 liter
Sample Matrix: Indoor air
Flow Controller ID: 3521
Sampled: 6/4/2023 11:12
Sample Type: 24 hr
EPA TO-15
Work Order: 23171309
Initial Vacuum(in Hg): -29.25
Final Vacuum(in Hg): -6.5
Receipt Vacuum(in Hg): -7.4
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RI MDL Dilution Analyzed Analyst
Acetone
52
1.4
0.84
E
120
3.3
Benzene
0.23
0.035
0.026
0.74
0.11
Benzyl chloride
ND
0.14
0.031
ND
0.72
Bromodichloromethane
ND
0.035
0.024
ND
0.23
Bromoform
ND
0.035
0.024
ND
0.36
Bromomethane
ND
0.035
0.023
ND
0.14
1,3-Butadiene
ND
0.035
0.029
ND
0.077
2-Butanone (MEK)
4.0
1.4
0.37
L-05
12
4.1
Carbon Disulfide
0.18
0.35
0.032
J
0.57
1.1
Carbon Tetrachloride
0.077
0.035
0.028
0.48
0.22
Chlorobenzene
ND
0.035
0.023
ND
0.16
Chloroethane
ND
0.035
0.031
ND
0.092
Chloroform
0.034
0.035
0.033
J
0.17
0.17
Chloromethane
0.62
0.070
0.028
1.3
0.14
Cyclohexane
0.31
0.035
0.021
1.1
0.12
Dibromochloromethane
ND
0.035
0.023
ND
0.30
1,2-Dibromoethane (EDB)
ND
0.035
0.021
ND
0.27
1,2-Dichlorobenzene
ND
0.035
0.020
ND
0.21
1,3-Dichlorobenzene
ND
0.035
0.019
ND
0.21
1,4-Dichlorobenzene
ND
0.035
0.023
ND
0.21
Dichlorodifluoromethane (Freon 12)
0.52
0.035
0.034
2.6
0.17
1,1-Dichloroethane
ND
0.035
0.030
ND
0.14
1,2-Dichloroethane
0.059
0.035
0.032
0.24
0.14
1,1-Dichloroethylene
ND
0.035
0.027
ND
0.14
cis-1,2-Dichloroethylene
ND
0.035
0.025
ND
0.14
trans-1,2-Dichloroethylene
ND
0.035
0.027
ND
0.14
1,2-Dichloropropane
0.020
0.035
0.019
J
0.093
0.16
cis- 1,3 -Dichloropropene
ND
0.035
0.018
ND
0.16
trans- 1, 3 -Dichloropropene
ND
0.035
0.018
ND
0.16
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.035
0.034
ND
0.24
1,4-Dioxane
ND
0.35
0.029
ND
1.3
Ethanol
46
1.4
0.62
E
87
2.6
Ethyl Acetate
0.60
0.35
0.18
2.2
1.3
Ethylbenzene
0.44
0.035
0.020
1.9
0.15
4-Ethyltoluene
0.052
0.035
0.021
0.25
0.17
Heptane
1.2
0.035
0.022
4.9
0.14
Hexachlorobutadiene
ND
0.035
0.029
ND
0.37
Hexane
0.22
1.4
0.18
J
0.78
4.9
2-Hexanone (MBK)
0.19
0.14
0.017
0.78
0.57
Isopropanol
4.1
1.4
0.24
10.0
3.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.027
ND
0.13
Methylene Chloride
ND
0.35
0.16
ND
1.2
4-Methyl-2-pentanone (MIBK)
0.40
0.035
0.019
1.6
0.14
Naphthalene
0.032
0.035
0.026
L-05, V-06,
0.17
0.18
Z-01, J
Propene
0.69
1.4
0.31
J
1.2
2.4
Styrene
1.3
0.035
0.018
5.7
0.15
2.0
0.698
6/15/23 6:41
CMR
0.084
0.698
6/15/23 6:41
CMR
0.16
0.698
6/15/23 6:41
CMR
0.16
0.698
6/15/23 6:41
CMR
0.25
0.698
6/15/23 6:41
CMR
0.090
0.698
6/15/23 6:41
CMR
0.065
0.698
6/15/23 6:41
CMR
1.1
0.698
6/15/23 6:41
CMR
0.10
0.698
6/15/23 6:41
CMR
0.17
0.698
6/15/23 6:41
CMR
0.11
0.698
6/15/23 6:41
CMR
0.082
0.698
6/15/23 6:41
CMR
0.16
0.698
6/15/23 6:41
CMR
0.057
0.698
6/15/23 6:41
CMR
0.073
0.698
6/15/23 6:41
CMR
0.20
0.698
6/15/23 6:41
CMR
0.16
0.698
6/15/23 6:41
CMR
0.12
0.698
6/15/23 6:41
CMR
0.12
0.698
6/15/23 6:41
CMR
0.14
0.698
6/15/23 6:41
CMR
0.17
0.698
6/15/23 6:41
CMR
0.12
0.698
6/15/23 6:41
CMR
0.13
0.698
6/15/23 6:41
CMR
0.11
0.698
6/15/23 6:41
CMR
0.10
0.698
6/15/23 6:41
CMR
0.11
0.698
6/15/23 6:41
CMR
0.087
0.698
6/15/23 6:41
CMR
0.082
0.698
6/15/23 6:41
CMR
0.081
0.698
6/15/23 6:41
CMR
0.24
0.698
6/15/23 6:41
CMR
0.10
0.698
6/15/23 6:41
CMR
1.2
0.698
6/15/23 6:41
CMR
0.64
0.698
6/15/23 6:41
CMR
0.088
0.698
6/15/23 6:41
CMR
0.11
0.698
6/15/23 6:41
CMR
0.091
0.698
6/15/23 6:41
CMR
0.31
0.698
6/15/23 6:41
CMR
0.64
0.698
6/15/23 6:41
CMR
0.071
0.698
6/15/23 6:41
CMR
0.59
0.698
6/15/23 6:41
CMR
0.097
0.698
6/15/23 6:41
CMR
0.56
0.698
6/15/23 6:41
CMR
0.076
0.698
6/15/23 6:41
CMR
0.14
0.698
6/15/23 6:41
CMR
0.53
0.698
6/15/23 6:41
CMR
0.078
0.698
6/15/23 6:41
CMR
Page 59 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171309
Date Received: 6/9/2023
Sub Description/Location:
Initial Vacuum(in Hg): -29.25
Field Sample #: IA-8
Canister ID: 1225
Final Vacuum(in Hg): -6.5
Sample ID: 23F1309-28
Canister Size: 6 liter
Receipt Vacuum(in Hg): -7.4
Sample Matrix: Indoor air
Flow Controller ID: 3521
Flow Controller Type: Fixed -Orifice
Sampled: 6/4/2023 11:12
Sample Type: 24 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
1,1,2,2-Tetrachloroethane
ND
0.035
0.019
ND
0.24
0.13
0.698
6/15/23 6:41
CMR
Tetrachloroethylene
ND
0.035
0.027
ND
0.24
0.18
0.698
6/15/23 6:41
CMR
Tetrahydrofuran
2.7
0.35
0.057
8.0
1.0
0.17
0.698
6/15/23 6:41
CMR
Toluene
6.1
0.035
0.020
23
0.13
0.075
0.698
6/15/23 6:41
CMR
1,2,4-Trichlorobenzene
ND
0.035
0.032
ND
0.26
0.24
0.698
6/15/23 6:41
CMR
1, 1, 1 -Trichloroethane
ND
0.035
0.027
ND
0.19
0.15
0.698
6/15/23 6:41
CMR
1,1,2-Trichloroethane
ND
0.035
0.025
ND
0.19
0.13
0.698
6/15/23 6:41
CMR
Trichloroethylene
ND
0.035
0.024
ND
0.19
0.13
0.698
6/15/23 6:41
CMR
Trichlorofluoromethane (Freon 11)
0.21
0.14
0.041
1.2
0.78
0.23
0.698
6/15/23 6:41
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.065
0.14
0.039
J 0.50
1.1
0.30
0.698
6/15/23 6:41
CMR
1,2,4-Trimethylbenzene
0.29
0.035
0.015
1.4
0.17
0.076
0.698
6/15/23 6:41
CMR
1,3,5-Trimethylbenzene
0.075
0.035
0.018
0.37
0.17
0.091
0.698
6/15/23 6:41
CMR
Vinyl Acetate
0.89
0.70
0.19
3.1
2.5
0.66
0.698
6/15/23 6:41
CMR
Vinyl Chloride
ND
0.035
0.031
ND
0.089
0.080
0.698
6/15/23 6:41
CMR
m&p-Xylene
1.7
0.070
0.039
7.2
0.30
0.17
0.698
6/15/23 6:41
CMR
o-Xylene
0.58
0.035
0.018
2.5
0.15
0.078
0.698
6/15/23 6:41
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 97.8 70-130 6/15/23 6:41
Page 60 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
Sample Extraction Data
Prep Method: TO-15 Prep -EPA TO-15
Lab Number [Field ID]
Batch
Pressure
Dilution
Pre
Dilution
Pre-Dil
Initial
mL
Pre-Dil
Final
mL
Default
Injection
mL
Actual
Injection
mL
Date
23F1309-01 [IA-1]
B343424
1.5
1
N/A
1000
200
430
06/14/23
23F1309-02 [IA-2]
B343424
1.5
1
N/A
1000
200
430
06/14/23
23F1309-03 [IA-3]
B343424
1.5
1
N/A
1000
200
430
06/14/23
23F1309-04 [IA-5]
B343424
1.5
1
N/A
1000
200
430
06/14/23
23F1309-05 [IA-6]
B343424
L5
1
N/A
1000
200
430
06/14/23
23F1309-06 [IA-7]
B343424
1.5
1
N/A
1000
200
430
06/14/23
23F1309-07 [IA-7 DUP]
B343424
1.74
1
N/A
1000
200
500
06/14/23
23F1309-08 [IA-9]
B343424
1.5
1
N/A
1000
200
430
06/14/23
23171309-09 [IA-10]
B343424
1.5
1
N/A
1000
200
430
06/14/23
23F1309-10 [IA-11]
B343424
1.74
1
N/A
1000
200
500
06/14/23
23F1309-11 [IA-12]
B343424
1.5
1
N/A
1000
200
430
06/14/23
Prep Method: TO-15 Prep -EPA TO-15
Lab Number [Field ID]
Batch
Pressure
Dilution
Pre
Dilution
Pre-Dil
Initial
mL
Pre-Dil
Final
mL
Default
Injection
mL
Actual
Injection
mL
Date
23F1309-12 [IA-14]
B343439
1.5
1
N/A
1000
200
430
06/14/23
23F1309-13 [IA-13]
B343439
1.5
1
N/A
1000
200
430
06/14/23
23F1309-14 [IA-16]
B343439
1.5
1
N/A
1000
200
430
06/14/23
23F1309-15 [IA-17]
B343439
1.5
1
N/A
1000
200
430
06/14/23
23171309-16 [IA-18]
B343439
1.5
1
N/A
1000
200
430
06/14/23
23F1309-17 [IA-19]
B343439
1.5
1
N/A
1000
200
430
06/14/23
23F1309-19 [IA-23]
B343439
1.5
1
N/A
1000
200
430
06/14/23
23F1309-20 [IA-15]
B343439
1.5
1
N/A
1000
200
430
06/14/23
23F1309-21 [IA-24]
B343439
1.5
1
N/A
1000
200
430
06/14/23
23F1309-22 [IA-25]
B343439
1.5
1
N/A
1000
200
430
06/14/23
23F1309-23 [IA-25 DUP]
B343439
1.5
1
N/A
1000
200
430
06/14/23
23F1309-24 [IA-21]
B343439
1.5
1
N/A
1000
200
430
06/14/23
23F1309-25 [OA]
B343439
1.5
1
N/A
1000
200
430
06/14/23
23171309-26 [IA-22]
B343439
1.5
1
N/A
1000
200
430
06/14/23
23F1309-27 [IA-4]
B343439
1.5
1
N/A
1000
200
430
06/14/23
23F1309-28 [IA-8]
B343439
1.5
1
N/A
1000
200
430
06/14/23
Prep Method: TO-15 Prep -EPA TO-15
Lab Number [Field ID]
Batch
Pressure
Dilution
Pre
Dilution
Pre-Dil
Initial
mL
Pre-Dil
Final
mL
Default
Injection
mL
Actual
Injection
mL
Date
23F1309-OIRE1 [IA-1]
B343523
1.5
1
N/A
1000
200
150
06/15/23
23F1309-02RE1 [IA-2]
B343523
1.5
1
N/A
1000
200
150
06/15/23
23F1309-03RE1 [IA-3]
B343523
1.5
1
N/A
1000
200
150
06/15/23
23F1309-09RE1 [IA-10]
B343523
1.5
1
N/A
1000
200
150
06/15/23
23171309-10RE1 [IA-11]
B343523
1.74
1
N/A
1000
200
174
06/15/23
23F1309-11RE1 [IA-12]
B343523
1.5
1
N/A
1000
200
150
06/15/23
23F1309-12RE1 [IA-14]
B343523
1.5
1
N/A
1000
200
150
06/15/23
23F1309-13RE1 [IA-13]
B343523
1.5
1
N/A
1000
200
150
06/15/23
23F1309-16RE1 [IA-18]
B343523
1.5
1
N/A
1000
200
150
06/15/23
23F1309-17RE1 [IA-19]
B343523
1.5
1
N/A
1000
200
150
06/15/23
Page 61 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
Sample Extraction Data
Prep Method: TO-15 Prep -EPA TO-15
Pre-Dil
Pre-Dil
Default
Actual
Pressure Pre Initial
Final
Injection
Injection
Lab Number [Field ID]
Batch Dilution Dilution mL
mL
mL
mL Date
23F1309-19RE1 [IA-23]
B343662 1.5 1 N/A
1000
200
75 06/16/23
23F1309-20RE1 [IA-15]
B343662 1.5 1 N/A
1000
200
75 06/16/23
Page 62 of 1 2

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua
Batch B343424 - TO-15 Prep
Blank (B343424-BLK1)
Prepared & Analyzed: 06/14/23
Acetone
ND
0.80
Benzene
ND
0.020
Benzyl chloride
0.057
0.080
B-05, J
Bromodichloromethane
ND
0.020
Bromoform
ND
0.020
Bromomethane
ND
0.020
1,3-Butadiene
ND
0.020
2-Butanone (MEK)
ND
0.80
Carbon Disulfide
ND
0.20
Carbon Tetrachloride
ND
0.020
Chlorobenzene
ND
0.020
Chloroethane
ND
0.020
Chloroform
ND
0.020
Chloromethane
ND
0.040
Cyclohexane
ND
0.020
Dibromochloromethane
ND
0.020
1,2-Dibromoethane (EDB)
ND
0.020
1,2-Dichlorobenzene
ND
0.020
1,3-Dichlorobenzene
ND
0.020
1,4-Dichlorobenzene
ND
0.020
Dichlorodifluoromethane (Freon 12)
ND
0.020
1,1-Dichloroethane
ND
0.020
1,2-Dichloroethane
ND
0.020
1,1-Dichloroethylene
ND
0.020
cis-1,2-Dichloroethylene
ND
0.020
trans-1,2-Dichloroethylene
ND
0.020
1,2-Dichloropropane
ND
0.020
cis- 1,3 -Dichloropropene
ND
0.020
trans- l,3-Dichloropropene
ND
0.020
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
ND
0.020
(Freon 114)
1,4-Dioxane
ND
0.20
Ethanol
ND
0.80
Ethyl Acetate
ND
0.20
Ethylbenzene
ND
0.020
4-Ethyltoluene
ND
0.020
Heptane
ND
0.020
Hexachlorobutadiene
ND
0.020
Hexane
ND
0.80
2-Hexanone (MBK)
ND
0.080
Isopropanol
ND
0.80
Methyl tert-Butyl Ether (MTBE)
ND
0.020
Methylene Chloride
ND
0.20
4-Methyl-2-pentanone (MIBK)
ND
0.020
Naphthalene
ND
0.020
Z-01
Propene
ND
0.80
Styrene
ND
0.020
Page 63 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B343424 - TO-15 Prep
Blank (B343424-BLKI)
Prepared & Analyzed: 06/14/23
1,1,2,2-Tetrachloroethane
ND
0.020
Tetrachloroethylene
ND
0.020
Tetrahydrofuran
ND
0.20
Toluene
ND
0.020
1,2,4-Trichlorobenzene
ND
0.020
1, 1, 1 -Trichloroethane
ND
0.020
1,1,2-Trichloroethane
ND
0.020
Trichloroethylene
ND
0.020
Trichlorofluoromethane (Freon 11)
ND
0.080
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
ND
0.080
113)
1,2,4-Trimethylbenzene
ND
0.020
1,3,5-Trimethylbenzene
ND
0.020
Vinyl Acetate
ND
0.40
Vinyl Chloride
ND
0.020
m&p-Xylene
ND
0.040
o-Xylene
ND
0.020
Surrogate: 4-Bromofluorobenzene (1)
LCS (B343424-BS1)
7.68
8.00 96.0
Prepared & Analyzed: 06/14/23
70-130
Acetone
4.32
5.00
86.3
70-130
Benzene
4.97
5.00
99.4
70-130
Benzyl chloride
3.86
5.00
77.2
70-130
Bromodichloromethane
4.95
5.00
99.0
70-130
Bromoform
5.36
5.00
107
70-130
Bromomethane
4.84
5.00
96.8
70-130
1,3-Butadiene
5.48
5.00
110
70-130
2-Butanone (MEK)
6.24
5.00
125
70-130
Carbon Disulfide
4.60
5.00
92.1
70-130
Carbon Tetrachloride
5.19
5.00
104
70-130
Chlorobenzene
4.60
5.00
91.9
70-130
Chloroethane
5.13
5.00
103
70-130
Chloroform
4.80
5.00
96.0
70-130
Chloromethane
5.05
5.00
101
70-130
Cyclohexane
5.39
5.00
108
70-130
Dibromochloromethane
5.38
5.00
108
70-130
1,2-Dibromoethane (EDB)
4.94
5.00
98.8
70-130
1,2-Dichlorobenzene
4.96
5.00
99.1
70-130
1,3-Dichlorobenzene
4.79
5.00
95.9
70-130
1,4-Dichlorobenzene
4.64
5.00
92.8
70-130
Dichlorodifluoromethane (Freon 12)
5.43
5.00
109
70-130
1,1-Dichloroethane
5.07
5.00
101
70-130
1,2-Dichloroethane
4.78
5.00
95.5
70-130
1,1-Dichloroethylene
4.65
5.00
93.0
70-130
cis-1,2-Dichloroethylene
4.99
5.00
99.9
70-130
trans-1,2-Dichloroethylene
5.28
5.00
106
70-130
1,2-Dichloropropane
5.24
5.00
105
70-130
Page 64 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B343424 - TO-15 Prep
LCS (B343424-BS1)
Prepared & Analyzed: 06/14/23
cis-1,3-Dichloropropene
5.48
5.00
110
70-130
trans-1,3-Dichloropropene
6.03
5.00
121
70-130
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
4.61
5.00
92.2
70-130
(Freon 114)
1,4-Dioxane
5.12
5.00
102
70-130
Ethanol
5.27
5.00
105
70-130
Ethyl Acetate
4.57
5.00
91.5
70-130
Ethylbenzene
5.08
5.00
102
70-130
4-Ethyltoluene
5.54
5.00
ill
70-130
Heptane
5.87
5.00
117
70-130
Hexachlorobutadiene
6.64
4.25
156
* 70-130 L-01, V-2(
Hexane
4.89
5.00
97.8
70-130
2-Hexanone (MBK)
5.04
5.00
101
70-130
Isopropanol
3.90
5.00
78.0
70-130
Methyl tert-Butyl Ether (MTBE)
5.02
5.00
100
70-130
Methylene Chloride
3.91
5.00
78.1
70-130
4-Methyl-2-pentanone (MIBK)
5.96
5.00
119
70-130
Naphthalene
4.67
3.68
127
70-130 V-06, Z-01
Propene
6.50
5.00
130
70-130
Styrene
5.40
5.00
108
70-130
1,1,2,2-Tetrachloroethane
4.88
5.00
97.5
70-130
Tetrachloroethylene
4.72
5.00
94.4
70-130
Tetrahydrofuran
5.35
5.00
107
70-130
Toluene
5.29
5.00
106
70-130
1,2,4-Trichlorobenzene
4.61
3.90
118
70-130 V-2(
1, 1, 1 -Trichloroethane
5.03
5.00
101
70-130
1,1,2-Trichloroethane
5.07
5.00
101
70-130
Trichloroethylene
5.09
5.00
102
70-130
Trichlorofluoromethane (Freon 11)
4.88
5.00
97.6
70-130
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
4.41
5.00
88.2
70-130
113)
1,2,4-Trimethylbenzene
5.65
5.00
113
70-130
1,3,5-Trimethylbenzene
5.59
5.00
112
70-130
Vinyl Acetate
5.27
5.00
105
70-130
Vinyl Chloride
5.26
5.00
105
70-130
m&p-Xylene
11.0
10.0
110
70-130
o-Xylene
5.43
5.00
109
70-130
Surrogate: 4-Bromofluorobenzene (1) 8.00 8.00 100 70-130
Page 65 of 1 2

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
knalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qual
Batch B343424 - TO-15 Prep
Duplicate (B343424-DUPI)
Source: 23171309-11
Prepared & Analyzed: 06/14/23
Benzene
0.23
0.035
0.73
0.11
0.23
1.81
25
Benzyl chloride
ND
0.14
ND
0.72
ND
25
Bromodichloromethane
ND
0.035
ND
0.23
ND
25
Bromoform
ND
0.035
ND
0.36
ND
25
Bromomethane
ND
0.035
ND
0.14
ND
25
1,3-Butadiene
ND
0.035
ND
0.077
ND
25
2-Butanone (MEK)
11
1.4
31
4.1
14
29.5
25 R-01
Carbon Disulfide
0.36
0.35
1.1
1.1
0.36
1.74
25
Carbon Tetrachloride
0.073
0.035
0.46
0.22
0.075
2.82
25
Chlorobenzene
ND
0.035
ND
0.16
ND
25
Chloroethane
0.18
0.035
0.49
0.092
0.17
9.90
25
Chloroform
0.056
0.035
0.27
0.17
0.052
7.79
25
Chloromethane
0.60
0.070
1.2
0.14
0.59
1.87
25
Cyclohexane
0.34
0.035
1.2
0.12
0.34
1.44
25
Dibromochloromethane
ND
0.035
ND
0.30
ND
25
1,2-Dibromoethane (EDB)
ND
0.035
ND
0.27
ND
25
1,2-Dichlorobenzene
ND
0.035
ND
0.21
ND
25
1,3-Dichlorobenzene
ND
0.035
ND
0.21
ND
25
1,4-Dichlorobenzene
ND
0.035
ND
0.21
ND
25
Dichlorodifluoromethane (Freon 12)
0.56
0.035
2.8
0.17
0.56
0.00
25
1,1-Dichloroethane
ND
0.035
ND
0.14
ND
25
1,2-Dichloroethane
0.056
0.035
0.23
0.14
0.059
4.88
25
1,1-Dichloroethylene
ND
0.035
ND
0.14
ND
25
cis-1,2-Dichloroethylene
ND
0.035
ND
0.14
ND
25
trans-1,2-Dichloroethylene
ND
0.035
ND
0.14
ND
25
1,2-Dichloropropane
0.063
0.035
0.29
0.16
0.063
0.00
25
cis- 1,3 -Dichloropropene
ND
0.035
ND
0.16
ND
25
trans- l,3-Dichloropropene
ND
0.035
ND
0.16
ND
25
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
ND
0.035
ND
0.24
ND
25
(Freon 114)
1,4-Dioxane
ND
0.35
ND
1.3
ND
25
Ethyl Acetate
0.55
0.35
2.0
1.3
0.56
2.38
25
Ethylbenzene
1.2
0.035
5.2
0.15
1.2
0.936
25
4-Ethyltoluene
0.084
0.035
0.41
0.17
0.10
18.0
25
Heptane
1.4
0.035
5.8
0.14
1.5
2.93
25
Hexachlorobutadiene
ND
0.035
ND
0.37
ND
25
Hexane
2.5
1.4
8.8
4.9
2.3
8.19
25
2-Hexanone (MBK)
0.19
0.14
0.76
0.57
0.18
1.52
25
Isopropanol
2.6
1.4
6.3
3.4
2.5
2.50
25
Methyl tert-Butyl Ether (MTBE)
ND
0.035
ND
0.13
ND
25
Methylene Chloride
ND
0.35
ND
1.2
ND
25
4-Methyl-2-pentanone (MIBK)
0.32
0.035
1.3
0.14
0.32
0.00
25
Naphthalene
0.090
0.035
0.47
0.18
0.093
3.05
25 V-06, Z-01
Propene
1.3
1.4
2.3
2.4
ND
25 J
Styrene
0.86
0.035
3.7
0.15
0.88
2.01
25
1,1,2,2-Tetrachloroethane
ND
0.035
ND
0.24
ND
25
Tetrachloroethylene
ND
0.035
ND
0.24
ND
25
Page 66 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
malyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua
Batch B343424 - TO-15 Prep
Duplicate (B343424-DUPI)
Source: 23171309-11
Prepared & Analyzed: 06/14/23
Toluene
30
0.035
110
0.13
30
0.545
25
1,2,4-Trichlorobenzene
ND
0.035
ND
0.26
ND
25
1, 1, 1 -Trichloroethane
ND
0.035
ND
0.19
ND
25
1,1,2-Trichloroethane
ND
0.035
ND
0.19
ND
25
Trichloroethylene
ND
0.035
ND
0.19
ND
25
Trichlorofluoromethane (Freon 11)
0.22
0.14
1.2
0.78
0.22
0.639
25
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
0.061
0.14
0.47
1.1
0.064
5.59
25 J
113)
1,2,4-Trimethylbenzene
0.62
0.035
3.0
0.17
0.60
2.17
25
1,3,5-Trimethylbenzene
0.15
0.035
0.75
0.17
0.16
3.15
25
Vinyl Acetate
ND
0.70
ND
2.5
ND
25
Vinyl Chloride
ND
0.035
ND
0.089
ND
25
m&p-Xylene
4.7
0.070
20
0.30
4.7
1.00
25
o-Xylene
1.6
0.035
6.9
0.15
1.6
0.567
25
Surrogate: 4-BromoJluorobenzene (1) 7.88 8.00 98.4 70-130
Batch B343439 - TO-15 Prep
Blank (B343439-BLKI)
Acetone
ND
0.80
Benzene
ND
0.020
Benzyl chloride
ND
0.080
Bromodichloromethane
ND
0.020
Bromoform
ND
0.020
Bromomethane
ND
0.020
1,3-Butadiene
ND
0.020
2-Butanone (MEK)
ND
0.80
Carbon Disulfide
ND
0.20
Carbon Tetrachloride
ND
0.020
Chlorobenzene
ND
0.020
Chloroethane
ND
0.020
Chloroform
ND
0.020
Chloromethane
ND
0.040
Cyclohexane
ND
0.020
Dibromochloromethane
ND
0.020
1,2-Dibromoethane (EDB)
ND
0.020
1,2-Dichlorobenzene
ND
0.020
1,3-Dichlorobenzene
ND
0.020
1,4-Dichlorobenzene
ND
0.020
Dichlorodifluoromethane (Freon 12)
ND
0.020
1,1-Dichloroethane
ND
0.020
1,2-Dichloroethane
ND
0.020
1,1-Dichloroethylene
ND
0.020
cis-1,2-Dichloroethylene
ND
0.020
trans-1,2-Dichloroethylene
ND
0.020
1,2-Dichloropropane
ND
0.020
cis- 1,3 -Dichloropropene
ND
0.020
Prepared & Analyzed: 06/14/23
Page 67 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
.nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua
Batch B343439 - TO-15 Prep
Blank (B343439-BLKI)
Prepared & Analyzed: 06/14/23
trans-1,3-Dichloropropene
ND
0.020
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
ND
0.020
(Freon 114)
1,4-Dioxane
ND
0.20
Ethanol
ND
0.80
Ethyl Acetate
ND
0.20
Ethylbenzene
ND
0.020
4-Ethyltoluene
ND
0.020
Heptane
ND
0.020
Hexachlorobutadiene
ND
0.020
Hexane
ND
0.80
2-Hexanone (MBK)
ND
0.080
Isopropanol
ND
0.80
Methyl tert-Butyl Ether (MTBE)
ND
0.020
Methylene Chloride
ND
0.20
4-Methyl-2-pentanone (MIBK)
ND
0.020
Naphthalene
ND
0.020 Z-01
Propene
ND
0.80
Styrene
ND
0.020
1,1,2,2-Tetrachloroethane
ND
0.020
Tetrachloroethylene
ND
0.020
Tetrahydrofuran
ND
0.20
Toluene
ND
0.020
1,2,4-Trichlorobenzene
ND
0.020
1, 1, 1 -Trichloroethane
ND
0.020
1,1,2-Trichloroethane
ND
0.020
Trichloroethylene
ND
0.020
Trichlorofluoromethane (Freon 11)
ND
0.080
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
ND
0.080
113)
1,2,4-Trimethylbenzene
ND
0.020
1,3,5-Trimethylbenzene
ND
0.020
Vinyl Acetate
ND
0.40
Vinyl Chloride
ND
0.020
m&p-Xylene
ND
0.040
o-Xylene
ND
0.020
Surrogate: 4-BromoJluorobenzene (1)
7.70
8.00 96.3 70-130
Page 68 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B343439 - TO-15 Prep
LCS (B343439-BSI)
Prepared & Analyzed: 06/14/23
Acetone
4.59
5.00
91.8
70-130
Benzene
4.98
5.00
99.6
70-130
Benzyl chloride
3.74
5.00
74.9
70-130
Bromodichloromethane
4.84
5.00
96.9
70-130
Bromoform
5.34
5.00
107
70-130
Bromomethane
4.75
5.00
95.0
70-130
1,3-Butadiene
5.25
5.00
105
70-130
2-Butanone(MEK)
6.59
5.00
132 *
70-130
L-Of
Carbon Disulfide
4.68
5.00
93.6
70-130
Carbon Tetrachloride
5.06
5.00
101
70-130
Chlorobenzene
4.73
5.00
94.6
70-130
Chloroethane
4.95
5.00
98.9
70-130
Chloroform
4.89
5.00
97.8
70-130
Chloromethane
4.77
5.00
95.5
70-130
Cyclohexane
5.42
5.00
108
70-130
Dibromochloromethane
5.32
5.00
106
70-130
1,2-Dibromoethane (EDB)
4.87
5.00
97.4
70-130
1,2-Dichlorobenzene
4.88
5.00
97.7
70-130
1,3-Dichlorobenzene
4.52
5.00
90.5
70-130
1,4-Dichlorobenzene
4.39
5.00
87.7
70-130
Dichlorodifluoromethane(Freon 12)
5.42
5.00
108
70-130
1,1-Dichloroethane
5.18
5.00
104
70-130
1,2-Dichloroethane
4.85
5.00
97.0
70-130
1,1-Dichloroethylene
4.62
5.00
92.5
70-130
cis-1,2-Dichloroethylene
5.14
5.00
103
70-130
trans-1,2-Dichloroethylene
5.38
5.00
108
70-130
1,2-Dichloropropane
5.06
5.00
101
70-130
cis- 1,3 -Dichloropropene
5.47
5.00
109
70-130
trans- 1, 3 -Dichloropropene
5.93
5.00
119
70-130
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
4.48
5.00
89.7
70-130
(Freon 114)
1,4-Dioxane
5.20
5.00
104
70-130
Ethanol
5.35
5.00
107
70-130
Ethyl Acetate
4.88
5.00
97.6
70-130
Ethylbenzene
5.20
5.00
104
70-130
4-Ethyltoluene
5.52
5.00
110
70-130
Heptane
5.60
5.00
112
70-130
Hexachlorobutadiene
7.01
4.25
165 *
70-130
L-01, V-2(
Hexane
5.01
5.00
100
70-130
2-Hexanone (MBK)
5.26
5.00
105
70-130
Isopropanol
3.94
5.00
78.9
70-130
Methyl tert-Butyl Ether (MTBE)
5.67
5.00
113
70-130
Methylene Chloride
3.94
5.00
78.8
70-130
4-Methyl-2-pentanone (MIBK)
6.12
5.00
122
70-130
Naphthalene
5.09
3.68
138 *
70-130
L-05,
V-06, Z-01
Propene 6.30 5.00 126 70-130
Page 69 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B343439 - TO-15 Prep
LCS (B343439-BS1)
Prepared & Analyzed: 06/14/23
Styrene
5.64
5.00
113
70-130
1,1,2,2-Tetrachloroethane
4.79
5.00
95.7
70-130
Tetrachloroethylene
4.78
5.00
95.7
70-130
Tetrahydrofuran
5.80
5.00
116
70-130
Toluene
5.30
5.00
106
70-130
1,2,4-Trichlorobenzene
4.66
3.90
120
70-130 V-2(
1, 1, 1 -Trichloroethane
4.93
5.00
98.6
70-130
1,1,2-Trichloroethane
5.05
5.00
101
70-130
Trichloroethylene
5.00
5.00
100
70-130
Trichlorofluoromethane (Freon 11)
4.86
5.00
97.3
70-130
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
4.44
5.00
88.7
70-130
113)
1,2,4-Trimethylbenzene
5.80
5.00
116
70-130
1,3,5-Trimethylbenzene
5.67
5.00
113
70-130
Vinyl Acetate
5.85
5.00
117
70-130
Vinyl Chloride
5.09
5.00
102
70-130
m&p-Xylene
11.0
10.0
110
70-130
o-Xylene
5.43
5.00
109
70-130
Surrogate: 4-Bromofluorobenzene (1)
7.91
8.00
98.9
70-130
Duplicate (B343439-DUPI) Source: 23F1309-28 Prepared: 06/14/23 Analyzed: 06/15/23
Acetone
53
1.4
130
3.3
52
1.88
25 E
Benzene
0.23
0.035
0.72
0.11
0.23
3.04
25
Benzyl chloride
ND
0.14
ND
0.72
ND
25
Bromodichloromethane
ND
0.035
ND
0.23
ND
25
Bromoform
ND
0.035
ND
0.36
ND
25
Bromomethane
ND
0.035
ND
0.14
ND
25
1,3-Butadiene
ND
0.035
ND
0.077
ND
25
2-Butanone (MEK)
3.9
1.4
12
4.1
4.0
0.812
25
Carbon Disulfide
0.18
0.35
0.58
1.1
0.18
1.52
25 J
Carbon Tetrachloride
0.081
0.035
0.51
0.22
0.077
5.31
25
Chlorobenzene
ND
0.035
ND
0.16
ND
25
Chloroethane
ND
0.035
ND
0.092
ND
25
Chloroform
0.036
0.035
0.18
0.17
0.034
5.94
25
Chloromethane
0.59
0.070
1.2
0.14
0.62
5.75
25
Cyclohexane
0.30
0.035
1.0
0.12
0.31
0.913
25
Dibromochloromethane
ND
0.035
ND
0.30
ND
25
1,2-Dibromoethane (EDB)
ND
0.035
ND
0.27
ND
25
1,2-Dichlorobenzene
ND
0.035
ND
0.21
ND
25
1,3-Dichlorobenzene
ND
0.035
ND
0.21
ND
25
1,4-Dichlorobenzene
ND
0.035
ND
0.21
ND
25
Dichlorodifluoromethane (Freon 12)
0.53
0.035
2.6
0.17
0.52
2.14
25
1,1-Dichloroethane
ND
0.035
ND
0.14
ND
25
1,2-Dichloroethane
0.052
0.035
0.21
0.14
0.059
12.7
25
1,1-Dichloroethylene
ND
0.035
ND
0.14
ND
25
cis-1,2-Dichloroethylene
ND
0.035
ND
0.14
ND
25
trans-1,2-Dichloroethylene
ND
0.035
ND
0.14
ND
25
Page 70 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
Analyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qual
Batch B343439 - TO-15 Prep
Duplicate (B343439-DUPI)
Source: 23F1309-28
Prepared: 06/14/23 Analyzed: 06/15/23
1,2-Dichloropropane
0.023
0.035
0.11
0.16
0.020
12.9
25
J
cis-1,3-Dichloropropene
ND
0.035
ND
0.16
ND
25
trans-1,3-Dichloropropene
ND
0.035
ND
0.16
ND
25
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
ND
0.035
ND
0.24
ND
25
(Freon 114)
1,4-Dioxane
ND
0.35
ND
1.3
ND
25
Ethanol
47
1.4
89
2.6
46
1.77
25
E
Ethyl Acetate
0.62
0.35
2.2
1.3
0.60
3.43
25
Ethylbenzene
0.45
0.035
2.0
0.15
0.44
2.19
25
4-Ethyltoluene
0.054
0.035
0.26
0.17
0.052
3.97
25
Heptane
1.2
0.035
5.1
0.14
1.2
3.94
25
Hexachlorobutadiene
ND
0.035
ND
0.37
ND
25
Hexane
0.20
1.4
0.71
4.9
0.22
9.52
25
J
2-Hexanone (MBK)
0.19
0.14
0.76
0.57
0.19
2.23
25
Isopropanol
4.1
1.4
10
3.4
4.1
1.08
25
Methyl tert-Butyl Ether (MTBE)
ND
0.035
ND
0.13
ND
25
Methylene Chloride
ND
0.35
ND
1.2
ND
25
4-Methyl-2-pentanone (MIBK)
0.42
0.035
1.7
0.14
0.40
4.92
25
Naphthalene
0.027
0.035
0.14
0.18
0.032
16.5
25
L-05,
V-06,
Propene
0.70
1.4
1.2
2.4
0.69
2.51
25
J
Styrene
1.4
0.035
6.0
0.15
1.3
3.56
25
1,1,2,2-Tetrachloroethane
ND
0.035
ND
0.24
ND
25
Tetrachloroethylene
ND
0.035
ND
0.24
ND
25
Tetrahydrofuran
2.8
0.35
8.2
1.0
2.7
2.00
25
Toluene
6.2
0.035
23
0.13
6.1
2.42
25
1,2,4-Trichlorobenzene
ND
0.035
ND
0.26
ND
25
1, 1, 1 -Trichloroethane
ND
0.035
ND
0.19
ND
25
1,1,2-Trichloroethane
ND
0.035
ND
0.19
ND
25
Trichloroethylene
ND
0.035
ND
0.19
ND
25
Trichlorofluoromethane (Freon 11)
0.22
0.14
1.3
0.78
0.21
4.78
25
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
0.063
0.14
0.49
1.1
0.065
2.17
25
1
113)
1,2,4-Trimethylbenzene
0.29
0.035
1.4
0.17
0.29
0.481
25
1,3,5-Trimethylbenzene
0.078
0.035
0.38
0.17
0.075
4.57
25
Vinyl Acetate
0.84
0.70
3.0
2.5
0.89
6.12
25
Vinyl Chloride
ND
0.035
ND
0.089
ND
25
m&p-Xylene
1.7
0.070
7.3
0.30
1.7
2.00
25
o-Xylene
0.59
0.035
2.5
0.15
0.58
1.32
25
Surrogate: 4-Bromo/luorobenzene (1) 7.80 8.00 97.6 70-130
Page 71 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
malyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua
Batch B343523 - TO-15 Prep
Blank (B343523-BLKI)
Prepared & Analyzed: 06/15/23
Acetone
ND
0.80
Benzene
ND
0.020
Benzyl chloride
ND
0.080
Bromodichloromethane
ND
0.020
Bromoform
ND
0.020
Bromomethane
ND
0.020
1,3-Butadiene
ND
0.020
2-Butanone (MEK)
ND
0.80
Carbon Disulfide
ND
0.20
Carbon Tetrachloride
ND
0.020
Chlorobenzene
ND
0.020
Chloroethane
ND
0.020
Chloroform
ND
0.020
Chloromethane
ND
0.040
Cyclohexane
ND
0.020
Dibromochloromethane
ND
0.020
1,2-Dibromoethane (EDB)
ND
0.020
1,2-Dichlorobenzene
ND
0.020
1,3-Dichlorobenzene
ND
0.020
1,4-Dichlorobenzene
ND
0.020
Dichlorodifluoromethane (Freon 12)
ND
0.020
1,1-Dichloroethane
ND
0.020
1,2-Dichloroethane
ND
0.020
1,1-Dichloroethylene
ND
0.020
cis-1,2-Dichloroethylene
ND
0.020
trans-1,2-Dichloroethylene
ND
0.020
1,2-Dichloropropane
ND
0.020
cis- 1,3 -Dichloropropene
ND
0.020
trans- 1, 3 -Dichloropropene
ND
0.020
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
ND
0.020
(Freon 114)
1,4-Dioxane
ND
0.20
Ethanol
ND
0.80
Ethyl Acetate
ND
0.20
Ethylbenzene
ND
0.020
4-Ethyltoluene
ND
0.020
Heptane
ND
0.020
Hexachlorobutadiene
ND
0.020
Hexane
ND
0.80
2-Hexanone (MBK)
ND
0.080
Isopropanol
ND
0.80 L-03
Methyl tert-Butyl Ether (MTBE)
ND
0.020
Methylene Chloride
ND
0.20 L-03
4-Methyl-2-pentanone (MIBK)
ND
0.020
Naphthalene
ND
0.020 Z-01
Propene
ND
0.80
Styrene
ND
0.020
Page 72 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B343523 - TO-15 Prep
Blank (B343523-BLKI)
Prepared & Analyzed: 06/15/23
1,1,2,2-Tetrachloroethane
ND
0.020
Tetrachloroethylene
ND
0.020
Tetrahydrofuran
ND
0.20
Toluene
ND
0.020
1,2,4-Trichlorobenzene
ND
0.020
1, 1, 1 -Trichloroethane
ND
0.020
1,1,2-Trichloroethane
ND
0.020
Trichloroethylene
ND
0.020
Trichlorofluoromethane (Freon 11)
ND
0.080
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
ND
0.080
113)
1,2,4-Trimethylbenzene
ND
0.020
1,3,5-Trimethylbenzene
ND
0.020
Vinyl Acetate
ND
0.40
Vinyl Chloride
ND
0.020
m&p-Xylene
ND
0.040
o-Xylene
ND
0.020
Surrogate: 4-Bromofluorobenzene (1)
LCS (B343523-BS1)
7.58
8.00 94.7
Prepared & Analyzed: 06/15/23
70-130
Acetone
3.78
5.00
75.7
70-130
Benzene
4.36
5.00
87.1
70-130
Benzyl chloride
3.54
5.00
70.7
70-130
Bromodichloromethane
4.37
5.00
87.4
70-130
Bromoform
4.70
5.00
94.1
70-130
Bromomethane
3.96
5.00
79.3
70-130
1,3-Butadiene
4.56
5.00
91.1
70-130
2-Butanone (MEK)
5.65
5.00
113
70-130
Carbon Disulfide
3.99
5.00
79.7
70-130
Carbon Tetrachloride
4.48
5.00
89.6
70-130
Chlorobenzene
4.15
5.00
83.0
70-130
Chloroethane
4.25
5.00
85.0
70-130
Chloroform
4.07
5.00
81.4
70-130
Chloromethane
4.24
5.00
84.8
70-130
Cyclohexane
4.86
5.00
97.2
70-130
Dibromochloromethane
4.74
5.00
94.8
70-130
1,2-Dibromoethane (EDB)
4.40
5.00
88.0
70-130
1,2-Dichlorobenzene
4.41
5.00
88.1
70-130
1,3-Dichlorobenzene
4.30
5.00
86.0
70-130
1,4-Dichlorobenzene
4.29
5.00
85.8
70-130
Dichlorodifluoromethane (Freon 12)
4.48
5.00
89.6
70-130
1,1-Dichloroethane
4.36
5.00
87.2
70-130
1,2-Dichloroethane
4.15
5.00
82.9
70-130
1,1-Dichloroethylene
4.07
5.00
81.4
70-130
cis-1,2-Dichloroethylene
4.40
5.00
88.1
70-130
trans-1,2-Dichloroethylene
4.51
5.00
90.2
70-130
1,2-Dichloropropane
4.66
5.00
93.2
70-130
Page 73 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B343523 - TO-15 Prep
LCS (B343523-BS1)
Prepared & Analyzed: 06/15/23
cis-1,3-Dichloropropene
4.94
5.00
98.8
70-130
trans-1,3-Dichloropropene
5.52
5.00
110
70-130
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
3.82
5.00
76.4
70-130
(Freon 114)
1,4-Dioxane
4.64
5.00
92.7
70-130
Ethanol
4.51
5.00
90.2
70-130
Ethyl Acetate
4.22
5.00
84.5
70-130
Ethylbenzene
4.64
5.00
92.8
70-130
4-Ethyltoluene
5.02
5.00
100
70-130
Heptane
5.26
5.00
105
70-130
Hexachlorobutadiene
5.95
4.25
140 *
70-130
L-01, V-2(
Hexane
4.22
5.00
84.3
70-130
2-Hexanone (MBK)
4.83
5.00
96.6
70-130
Isopropanol
3.40
5.00
67.9 *
70-130
L-03
Methyl tert-Butyl Ether (MTBE)
4.54
5.00
90.7
70-130
Methylene Chloride
3.43
5.00
68.6 *
70-130
L-03
4-Methyl-2-pentanone (MI13K)
5.55
5.00
111
70-130
Naphthalene
4.59
3.68
125
70-130
V-06, Z-01
Propene
5.37
5.00
107
70-130
Styrene
4.94
5.00
98.9
70-130
1,1,2,2-Tetrachloroethane
4.40
5.00
87.9
70-130
Tetrachloroethylene
4.10
5.00
81.9
70-130
Tetrahydrofuran
4.80
5.00
96.0
70-130
Toluene
4.70
5.00
94.1
70-130
1,2,4-Trichlorobenzene
4.26
3.90
109
70-130
1, 1, 1 -Trichloroethane
4.39
5.00
87.7
70-130
1,1,2-Trichloroethane
4.46
5.00
89.2
70-130
Trichloroethylene
4.46
5.00
89.2
70-130
Trichlorofluoromethane (Freon 11)
4.06
5.00
81.3
70-130
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
3.73
5.00
74.6
70-130
113)
1,2,4-Trimethylbenzene
5.15
5.00
103
70-130
1,3,5-Trimethylbenzene
4.99
5.00
99.7
70-130
Vinyl Acetate
4.94
5.00
98.8
70-130
Vinyl Chloride
4.40
5.00
88.0
70-130
m&p-Xylene
9.92
10.0
99.2
70-130
o-Xylene
4.90
5.00
98.0
70-130
Surrogate: 4-Bromofluorobenzene (1) 7.82 8.00 97.8 70-130
Page 74 of 1 2

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
Analyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qual
Batch B343523 - TO-15 Prep
Duplicate (B343523-DUPI) Source: 23171309-11RE1 Prepared & Analyzed: 06/15/23
Acetone 140 4.0 330 9.5 140 0.361 25 E
Ethanol 35 4.0 65 7.5 35 1.13 25
Tetrahydrofuran 33 1.0 97 2.9 33 0.158 25
Surrogate: 4-BromoJluorobenzene (1) 7.63 8.00 95.4 70-130
Batch B343662 - TO-15 Prep
Blank (B343662-BLKI)
Prepared & Analyzed: 06/16/23
Acetone
ND
0.80
Benzene
ND
0.020
Benzyl chloride
ND
0.080
Bromodichloromethane
ND
0.020
Bromoform
ND
0.020
Bromomethane
ND
0.020
1,3-Butadiene
ND
0.020
2-Butanone (MEK)
ND
0.80
Carbon Disulfide
ND
0.20
Carbon Tetrachloride
ND
0.020
Chlorobenzene
ND
0.020
Chloroethane
ND
0.020
Chloroform
ND
0.020
Chloromethane
ND
0.040
Cyclohexane
ND
0.020
Dibromochloromethane
ND
0.020
1,2-Dibromoethane (EDB)
ND
0.020
1,2-Dichlorobenzene
ND
0.020
1,3-Dichlorobenzene
ND
0.020
1,4-Dichlorobenzene
ND
0.020
Dichlorodifluoromethane (Freon 12)
ND
0.020
1,1-Dichloroethane
ND
0.020
1,2-Dichloroethane
ND
0.020
1,1-Dichloroethylene
ND
0.020
cis-1,2-Dichloroethylene
ND
0.020
trans-1,2-Dichloroethylene
ND
0.020
1,2-Dichloropropane
ND
0.020
cis- 1,3 -Dichloropropene
ND
0.020
trans- 1, 3 -Dichloropropene
ND
0.020
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
ND
0.020
(Freon 114)
1,4-Dioxane
ND
0.20
Ethanol
ND
0.80
Ethyl Acetate
ND
0.20
Ethylbenzene
ND
0.020
4-Ethyltoluene
ND
0.020
Heptane
ND
0.020
Hexachlorobutadiene
ND
0.020
Hexane
ND
0.80
Page 75 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B343662 - TO-15 Prep
Blank (B343662-BLKI)
Prepared & Analyzed: 06/16/23
2-Hexanone (MBK)
ND
0.080
Isopropanol
ND
0.80
Methyl tert-Butyl Ether (MTBE)
ND
0.020
Methylene Chloride
ND
0.20
4-Methyl-2-pentanone (MIBK)
ND
0.020
Naphthalene
ND
0.020 Z-01
Propene
ND
0.80
Styrene
ND
0.020
1,1,2,2-Tetrachloroethane
ND
0.020
Tetrachloroethylene
ND
0.020
Tetrahydrofuran
ND
0.20
Toluene
ND
0.020
1,2,4-Trichlorobenzene
ND
0.020
1, 1, 1 -Trichloroethane
ND
0.020
1,1,2-Trichloroethane
ND
0.020
Trichloroethylene
ND
0.020
Trichlorofluoromethane (Freon 11)
ND
0.080
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
ND
0.080
113)
1,2,4-Trimethylbenzene
ND
0.020
1,3,5-Trimethylbenzene
ND
0.020
Vinyl Acetate
ND
0.40
Vinyl Chloride
ND
0.020
m&p-Xylene
ND
0.040
o-Xylene
ND
0.020
Surrogate: 4-Bromofluorobenzene (1)
LCS (B343662-BS1)
7.38
8.00 92.2
Prepared & Analyzed: 06/16/23
70-130
Acetone
3.94
5.00
78.8
70-130
Benzene
4.64
5.00
92.8
70-130
Benzyl chloride
3.52
5.00
70.4
70-130
Bromodichloromethane
4.58
5.00
91.7
70-130
Bromoform
4.84
5.00
96.7
70-130
Bromomethane
4.17
5.00
83.4
70-130
1,3-Butadiene
4.91
5.00
98.2
70-130
2-Butanone(MEK)
5.79
5.00
116
70-130
Carbon Disulfide
4.24
5.00
84.9
70-130
Carbon Tetrachloride
4.64
5.00
92.7
70-130
Chlorobenzene
4.29
5.00
85.7
70-130
Chloroethane
4.55
5.00
91.1
70-130
Chloroform
4.28
5.00
85.6
70-130
Chloromethane
4.44
5.00
88.8
70-130
Cyclohexane
4.97
5.00
99.4
70-130
Dibromochloromethane
4.98
5.00
99.5
70-130
1,2-Dibromoethane (EDB)
4.61
5.00
92.2
70-130
1,2-Dichlorobenzene
4.53
5.00
90.7
70-130
1,3-Dichlorobenzene
4.76
5.00
95.1
70-130
Page 76 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B343662 - TO-15 Prep
LCS (B343662-BS1)
Prepared & Analyzed: 06/16/23
1,4-Dichlorobenzene
4.48
5.00
89.6
70-130
Dichlorodifluoromethane (Freon 12)
4.71
5.00
94.2
70-130
1,1-Dichloroethane
4.56
5.00
91.3
70-130
1,2-Dichloroethane
4.40
5.00
87.9
70-130
1,1-Dichloroethylene
4.20
5.00
84.1
70-130
cis-1,2-Dichloroethylene
4.49
5.00
89.9
70-130
trans-1,2-Dichloroethylene
4.78
5.00
95.6
70-130
1,2-Dichloropropane
4.82
5.00
96.5
70-130
cis- 1,3 -Dichloropropene
5.08
5.00
102
70-130
trans- l,3-Dichloropropene
5.60
5.00
112
70-130
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
3.99
5.00
79.9
70-130
(Freon 114)
1,4-Dioxane
4.63
5.00
92.6
70-130
Ethanol
4.93
5.00
98.6
70-130
Ethyl Acetate
4.33
5.00
86.7
70-130
Ethylbenzene
4.79
5.00
95.8
70-130
4-Ethyltoluene
4.97
5.00
99.5
70-130
Heptane
5.46
5.00
109
70-130
Hexachlorobutadiene
6.08
4.25
143
* 70-130 L-01, V-2(
Hexane
4.39
5.00
87.7
70-130
2-Hexanone (MBK)
4.91
5.00
98.2
70-130
Isopropanol
3.56
5.00
71.3
70-130
Methyl tert-Butyl Ether (MTBE)
4.60
5.00
92.1
70-130
Methylene Chloride
3.70
5.00
74.0
70-130
4-Methyl-2-pentanone (MIBK)
5.77
5.00
115
70-130
Naphthalene
4.48
3.68
122
70-130 V-06, Z-01
Propene
5.54
5.00
111
70-130
Styrene
5.04
5.00
101
70-130
1,1,2,2-Tetrachloroethane
4.53
5.00
90.7
70-130
Tetrachloroethylene
4.30
5.00
86.0
70-130
Tetrahydrofuran
4.98
5.00
99.6
70-130
Toluene
4.91
5.00
98.2
70-130
1,2,4-Trichlorobenzene
4.10
3.90
105
70-130
1, 1, 1 -Trichloroethane
4.62
5.00
92.5
70-130
1,1,2-Trichloroethane
4.71
5.00
94.3
70-130
Trichloroethylene
4.58
5.00
91.5
70-130
Trichlorofluoromethane (Freon 11)
4.26
5.00
85.1
70-130
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
3.88
5.00
77.6
70-130
113)
1,2,4-Trimethylbenzene
5.27
5.00
105
70-130
1,3,5-Trimethylbenzene
5.23
5.00
105
70-130
Vinyl Acetate
4.66
5.00
93.3
70-130
Vinyl Chloride
4.73
5.00
94.6
70-130
m&p-Xylene
10.3
10.0
103
70-130
o-Xylene
5.12
5.00
102
70-130
Surrogate: 4-BromoJluorobenzene (1) 7.65 8.00 95.7 70-130
Page 77 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] ` TEL. [phone]
Note: Blank Subtraction is not performed unless otherwise noted
FLAG/QUALIFIER SUMMARY
*
QC result is outside of established limits.
t
Wide recovery limits established for difficult compound.
$
Wide RPD limits established for difficult compound.
#
Data exceeded client recommended or regulatory level
RL
Reporting Limit
MDL
Method Detection Limit
RPD
Relative Percent Difference
LCS
Laboratory Control Sample
LCS Dup
Duplicate Laboratory Control Sample
MS
Matrix Spike Sample
MS Dup
Duplicate Matrix Spike Sample
REC
Recovery
QC
Quality Control
ppbv
Parts per billion volume
EPA
United States Environmental Protection Agency
% REC Percent Recovery
ND Not Detected
N/A Not Applicable
DL Detection Limit
NC Not Calculated
LFB/LCS Lab Fortified Blank/Lab Control Sample
ORP Oxidation -Reduction Potential
wet Not dry weight corrected
% wt Percent weight
Kg Kilogram
g Gram
mg Milligram
µg Microgram
ng Nanogram
L Liter
mL Milliliter
µL Microliter
m3 Cubic Meter
EPH Extractable Petroleum Hydrocarbons
VPH Volatile Petroleum Hydrocarbons
APH Air Petroleum Hydrocarbons
FID Flame Ionization Detector
PID Photo Ionization Detector
Percent recoveries and relative percent differences (RPDs) are determined by the software using values in the
calculation which have not been rounded.
B-05 Data is not affected by elevated level in laboratory blank since sample(s) result is "Not Detected".
E Reported result is estimated. Value reported over verified calibration range.
J Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated
concentration (CLP J-Flag).
L-01 Laboratory fortified blank/laboratory control sample recovery outside of control limits. Data validation is not
affected since all results are 'hot detected" for all samples in this batch for this compound and bias is on the high
side.
L-03 Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this
compound is likely to be biased on the low side.
L-05 Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this
compound is likely to be biased on the high side.
R-01 Duplicate RPD is outside of control limits. Reduced precision is anticipated for reported result.
V-06 Continuing calibration verification (CCV) did not meet method specifications and was biased on the high side for
this compound.
Page 78 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] ` TEL. [phone]
Note: Blank Subtraction is not performed unless otherwise noted
V-20 Continuing calibration verification (CCV) did not meet method specifications and was biased on the high side.
Data validation is not affected since sample result was "not detected" for this compound.
Z-01 Calibrations RSD for this compound is >30% but <40%.
ANALYST
TPH
Thomas P. Hnitecki
RLF
Rebecca Faust
KMC
Kristen M Couture
CMR
Catherine M. Rouleau
Page 79 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
Initial Cal Check (5085380-ICV1 Lab File ID: J23A090036.D Analyzed: 04/01/23 05:53
Bromochloromethane (1)
298104
2.788
298104
2.788
100
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
850179
3.418
850179
3.418
100
60-140
0.0000
+/-0.50
Chlorobenzene-d5(1)
747035
5.036
747035
5.036
100
60-140
0.0000
+/-0.50
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
Calibration Check (S089166-CCV1) Lab File ID: J23A165004.13 Analyzed: 06/14/23 11:35
Bromochloromethane (1)
243052
2.812
243052
2.812
100
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
634620
3.435
634620
3.435
100
60-140
0.0000
+/-0.50
Chlorobenzene-d5(1)
559979
5.039
559979
5.039
100
60-140
0.0000
+/-0.50
LCS (B343424-BS1 ) Lab File ID: J23AI65005.D Analyzed: 06/14/23 12:00
Bromochloromethane (1)
240733
2.812
243052
2.812
99
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
632972
3.434
634620
3.435
100
60-140
-0.0010
+/-0.50
Chlorobenzene-d5(1)
567474
5.038
559979
5.039
101
60-140
-0.0010
+/-0.50
Blank (B343424-BLK1) Lab File ID: J23AI65008.D Analyzed: 06/14/23 13:31
Bromochloromethane (1)
228234
2.791
243052
2.812
94
60 - 140
-0.0210
+/-0.50
1,4-Difluorobenzene(1)
564248
3.422
634620
3.435
89
60-140
-0.0130
+/-0.50
Chlorobenzene-d5(1)
503022
5.036
559979
5.039
90
60-140
-0.0030
+/-0.50
IA-1 (23F1309-01 ) Lab File ID: J23A165010.D Analyzed: 06/14/23 14:35
Bromochloromethane (1)
242501
2.797
243052
2.812
100
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
620196
3.419
634620
3.435
98
60-140
-0.0160
+/-0.50
Chlorobenzene-d5(1)
567575
5.038
559979
5.039
101
60-140
-0.0010
+/-0.50
IA-2 (23F1309-02 ) Lab File ID: J23AI65011.13 Analyzed: 06/14/23 15:06
Bromochloromethane (1)
239563
2.792
243052
2.812
99
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
625272
3.419
634620
3.435
99
60-140
-0.0160
+/-0.50
Chlorobenzene-d5(1)
573268
5.033
559979
5.039
102
60-140
-0.0060
+/-0.50
IA-3 (23F1309-03) Lab File ID: J23A165012.1) Analyzed: 06/14/23 15:37
Bromochloromethane (1)
245625
2.792
243052
2.812
101
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
641829
3.419
634620
3.435
101
60-140
-0.0160
+/-0.50
Chlorobenzene-d5(1)
582239
5.038
559979
5.039
104
60-140
-0.0010
+/-0.50
IA-5 (23F1309-04) Lab File ID: J23A165013.1) Analyzed: 06/14/23 16:08
Bromochloromethane (1)
251352
2.797
243052
2.812
103
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
667089
3.425
634620
3.435
105
60-140
-0.0100
+/-0.50
Chlorobenzene-d5(1)
601370
5.035
559979
5.039
107
60-140
-0.0040
+/-0.50
Page 80 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
IA-6 (23F1309-05) Lab File ID: J23AI65014.D Analyzed: 06/14/23 16:40
Bromochloromethane (1)
251054
2.797
243052
2.812
103
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
672579
3.425
634620
3.435
106
60-140
-0.0100
+/-0.50
Chlorobenzene-d5(1)
615826
5.037
559979
5.039
110
60-140
-0.0020
+/-0.50
IA-7 (23F1309-06) Lab File ID: J23AI65015.D Analyzed: 06/14/23 17:11
Bromochloromethane (1)
258019
2.792
243052
2.812
106
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
688676
3.419
634620
3.435
109
60-140
-0.0160
+/-0.50
Chlorobenzene-d5(1)
626256
5.038
559979
5.039
112
60-140
-0.0010
+/-0.50
IA-7 DUP (23171309-07) Lab File ID: J23A165016.D Analyzed: 06/14/23 17:44
Bromochloromethane (1)
254067
2.796
243052
2.812
105
60 - 140
-0.0160
+/-0.50
1,4-Difluorobenzene(1)
685809
3.424
634620
3.435
108
60-140
-0.0110
+/-0.50
Chlorobenzene-d5(1)
620243
5.038
559979
5.039
111
60-140
-0.0010
+/-0.50
IA-9 (23171309-08) Lab File ID: J23A165017.D Analyzed: 06/14/23 18:16
Bromochloromethane (1)
253456
2.792
243052
2.812
104
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
688098
3.419
634620
3.435
108
60-140
-0.0160
+/-0.50
Chlorobenzene-d5(1)
623592
5.033
559979
5.039
111
60-140
-0.0060
+/-0.50
IA-10 (23F1309-09 ) Lab File ID: J23AI65018.D Analyzed: 06/14/23 18:48
Bromochloromethane (1)
262336
2.792
243052
2.812
108
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
701519
3.419
634620
3.435
ill
60-140
-0.0160
+/-0.50
Chlorobenzene-d5(1)
630233
5.037
559979
5.039
113
60-140
-0.0020
+/-0.50
IA-11 (23171309-10 ) Lab File ID: J23AI65019.D Analyzed: 06/14/23 19:21
Bromochloromethane (1)
263020
2.792
243052
2.812
108
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
710280
3.419
634620
3.435
112
60-140
-0.0160
+/-0.50
Chlorobenzene-d5(1)
648980
5.037
559979
5.039
116
60-140
-0.0020
+/-0.50
IA-12 (23F1309-11 ) Lab File ID: J23A165020.1) Analyzed: 06/14/23 19:53
Bromochloromethane (1)
262162
2.797
243052
2.812
108
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
708308
3.425
634620
3.435
112
60-140
-0.0100
+/-0.50
Chlorobenzene-d5(1)
643209
5.037
559979
5.039
115
60-140
-0.0020
+/-0.50
Duplicate (B343424-DUP1) Lab File ID: J23AI65021.13 Analyzed: 06/14/23 20:24
Bromochloromethane (1)
261069
2.792
243052
2.812
107
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
718804
3.419
634620
3.435
113
60-140
-0.0160
+/-0.50
Chlorobenzene-d5(1)
650330
5.038
559979
5.039
116
60-140
-0.0010
+/-0.50
INTERNAL STANDARD AREA AND RT SUMMARY
EPA TO-15
Reference
Reference
Area 9 o
RT Diff
Internal Standard
Response
RT
Response
RT
Area %
Limits 11
RT Diff
Limit
Q
Page 81 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
Calibration Check (S089178-CCV1) Lab File ID: J23AI65004.D Analyzed: 06/14/23 11:35
Bromochloromethane (1)
243052
2.812
243052
2.812
100
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
634620
3.435
634620
3.435
100
60-140
0.0000
+/-0.50
Chlorobenzene-d5(1)
559979
5.039
559979
5.039
100
60-140
0.0000
+/-0.50
LCS (B343439-BS1 ) Lab File ID: J23AI65022.D Analyzed: 06/14/23 20:50
Bromochloromethane (1)
264202
2.812
243052
2.812
109
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
728393
3.43
634620
3.435
115
60-140
-0.0050
+/-0.50
Chlorobenzene-d5(1)
644511
5.039
559979
5.039
115
60-140
0.0000
+/-0.50
Blank (B343439-BLK1) Lab File ID: J23A165025.D Analyzed: 06/14/23 22:20
Bromochloromethane (1)
243900
2.791
243052
2.812
100
60 - 140
-0.0210
+/-0.50
1,4-Difluorobenzene(1)
644004
3.417
634620
3.435
101
60-140
-0.0180
+/-0.50
Chlorobenzene-d5(1)
568973
5.035
559979
5.039
102
60-140
-0.0040
+/-0.50
IA-14 (23F1309-12 ) Lab File ID: J23A165026.D Analyzed: 06/14/23 22:52
Bromochloromethane (1)
256832
2.797
243052
2.812
106
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
683144
3.425
634620
3.435
108
60-140
-0.0100
+/-0.50
Chlorobenzene-d5(1)
617630
5.033
559979
5.039
110
60-140
-0.0060
+/-0.50
IA-13 (231T1309-13 ) Lab File ID: J23AI65027.D Analyzed: 06/14/23 23:23
Bromochloromethane (1)
258526
2.792
243052
2.812
106
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
687716
3.419
634620
3.435
108
60-140
-0.0160
+/-0.50
Chlorobenzene-d5(1)
628316
5.037
559979
5.039
112
60-140
-0.0020
+/-0.50
IA-16 (23F1309-14 ) Lab File ID: J23A165028.D Analyzed: 06/14/23 23:55
Bromochloromethane (1)
253071
2.792
243052
2.812
104
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
689966
3.418
634620
3.435
109
60-140
-0.0170
+/-0.50
Chlorobenzene-d5(1)
629061
5.033
559979
5.039
112
60-140
-0.0060
+/-0.50
IA-17 (231T1309-15 ) Lab File ID: J23A165029.1) Analyzed: 06/15/23 00:27
Bromochloromethane (1)
256102
2.792
243052
2.812
105
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
691576
3.418
634620
3.435
109
60-140
-0.0170
+/-0.50
Chlorobenzene-d5(1)
626810
5.033
559979
5.039
112
60-140
-0.0060
+/-0.50
IA-18 (23171309-16) Lab File ID: J23AI65030.13 Analyzed: 06/15/23 00:58
Bromochloromethane (1)
254088
2.792
243052
2.812
105
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
699056
3.419
634620
3.435
110
60-140
-0.0160
+/-0.50
Chlorobenzene-d5(1)
637318
5.034
559979
5.039
114
60-140
-0.0050
+/-0.50
IA-19 (23F1309-17) Lab File ID: J23AI6503 LD Analyzed: 06/15/23 01:29
Bromochloromethane (1)
260663
2.792
243052
2.812
107
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
717163
3.419
634620
3.435
113
60-140
-0.0160
+/-0.50
Chlorobenzene-d5(1)
649021
5.038
559979
5.039
116
60-140
-0.0010
+/-0.50
Page 82 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
IA-23 (23F1309-19) Lab File ID: J23AI65032.1) Analyzed: 06/15/23 02:01
Bromochloromethane (1)
265490
2.792
243052
2.812
109
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
741705
3.419
634620
3.435
117
60-140
-0.0160
+/-0.50
Chlorobenzene-d5(1)
670153
5.037
559979
5.039
120
60-140
-0.0020
+/-0.50
IA-15 (23F1309-20 ) Lab File ID: J23AI65033.D Analyzed: 06/15/23 02:32
Bromochloromethane (1)
261348
2.792
243052
2.812
108
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
736046
3.419
634620
3.435
116
60-140
-0.0160
+/-0.50
Chlorobenzene-d5(1)
661437
5.033
559979
5.039
118
60-140
-0.0060
+/-0.50
IA-24 (23F1309-21 ) Lab File ID: J23AI65034.D Analyzed: 06/15/23 03:04
Bromochloromethane (1)
265906
2.797
243052
2.812
109
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
737415
3.423
634620
3.435
116
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
673265
5.037
559979
5.039
120
60-140
-0.0020
+/-0.50
IA-25 (23F1309-22 ) Lab File ID: J23A165035.D Analyzed: 06/15/23 03:35
Bromochloromethane (1)
266433
2.792
243052
2.812
110
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
729490
3.423
634620
3.435
115
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
670338
5.037
559979
5.039
120
60-140
-0.0020
+/-0.50
IA-25 DUP (23F1309-23) Lab File ID: J23A165036.D Analyzed: 06/15/23 04:06
Bromochloromethane (1)
259419
2.792
243052
2.812
107
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
704956
3.423
634620
3.435
111
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
643932
5.037
559979
5.039
115
60-140
-0.0020
+/-0.50
IA-21 (23F1309-24 ) Lab File ID: J23A165037.D Analyzed: 06/15/23 04:37
Bromochloromethane (1)
262112
2.792
243052
2.812
108
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
718279
3.423
634620
3.435
113
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
640527
5.037
559979
5.039
114
60-140
-0.0020
+/-0.50
OA (23F1309-25) Lab File ID: J23A165038.1) Analyzed: 06/15/23 05:08
Bromochloromethane (1)
257195
2.791
243052
2.812
106
60 - 140
-0.0210
+/-0.50
1,4-Difluorobenzene(1)
685303
3.418
634620
3.435
108
60-140
-0.0170
+/-0.50
Chlorobenzene-d5(1)
628137
5.037
559979
5.039
112
60-140
-0.0020
+/-0.50
IA-22 (23F1309-26) Lab File ID: J23AI65039.13 Analyzed: 06/15/23 05:39
Bromochloromethane (1)
256695
2.792
243052
2.812
106
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
683647
3.419
634620
3.435
108
60-140
-0.0160
+/-0.50
Chlorobenzene-d5(1)
627110
5.037
559979
5.039
112
60-140
-0.0020
+/-0.50
IA-4 (23F1309-27) Lab File ID: J23A165040.13 Analyzed: 06/15/23 06:10
Bromochloromethane (1)
254495
2.792
243052
2.812
105
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
682963
3.423
634620
3.435
108
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
625130
5.033
559979
5.039
112
60-140
-0.0060
+/-0.50
Page 83 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
IA-8 (23F1309-28) Lab File ID: J23A165041.D Analyzed: 06/15/23 06:41
Bromochloromethane (1)
257399
2.792
243052
2.812
106
60 - 140
-0.0200
+/-0.50
1,4-Difluorobenzene(1)
691394
3.423
634620
3.435
109
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
634567
5.038
559979
5.039
113
60-140
-0.0010
+/-0.50
Duplicate (B343439-DUP1) Lab File ID: J23AI65042.D Analyzed: 06/15/23 07:12
Bromochloromethane (1)
255936
2.797
243052
2.812
105
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
682206
3.423
634620
3.435
107
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
628121
5.038
559979
5.039
112
60-140
-0.0010
+/-0.50
INTERNAL STANDARD AREA AND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area %
Limits
RT Diff
RT Diff
Limit
Q
Calibration Check (S089198-CCV1) Lab File ID: J23AI66014.D Analyzed: 06/15/23 15:13
Bromochloromethane (1)
294149
2.812
294149
2.812
100
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
764052
3.435
764052
3.435
100
60-140
0.0000
+/-0.50
Chlorobenzene-d5(1)
678403
5.038
678403
5.038
100
60-140
0.0000
+/-0.50
LCS (B343523-BS1 ) Lab File ID: J23AI66015.D Analyzed: 06/15/23 15:38
Bromochloromethane (1)
302331
2.812
294149
2.812
103
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
772023
3.434
764052
3.435
101
60-140
-0.0010
+/-0.50
Chlorobenzene-d5(1)
677605
5.038
678403
5.038
100
60-140
0.0000
+/-0.50
Blank (B343523-BLK1) Lab File ID: J23AI66018.D Analyzed: 06/15/23 17:11
Bromochloromethane (1)
280250
2.796
294149
2.812
95
60 - 140
-0.0160
+/-0.50
1,4-Difluorobenzene(1)
701403
3.422
764052
3.435
92
60-140
-0.0130
+/-0.50
Chlorobenzene-d5(1)
617604
5.035
678403
5.038
91
60-140
-0.0030
+/-0.50
IA-1 (23171309-01RE1) Lab File ID: J23AI66023.D Analyzed: 06/15/23 19:25
Bromochloromethane (1)
294735
2.797
294149
2.812
100
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
732673
3.423
764052
3.435
96
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
668261
5.038
678403
5.038
99
60-140
0.0000
+/-0.50
IA-2 (23171309-02RE1) Lab File ID: J23A166024.D Analyzed: 06/15/23 19:51
Bromochloromethane (1)
292597
2.796
294149
2.812
99
60 - 140
-0.0160
+/-0.50
1,4-Difluorobenzene(1)
728673
3.423
764052
3.435
95
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
655135
5.037
678403
5.038
97
60-140
-0.0010
+/-0.50
IA-3 (23171309-03RE1) Lab File ID: J23A166025.D Analyzed: 06/15/23 20:17
Bromochloromethane (1)
292375
2.796
294149
2.812
99
60 - 140
-0.0160
+/-0.50
1,4-Difluorobenzene(1)
736398
3.424
764052
3.435
96
60-140
-0.0110
+/-0.50
Chlorobenzene-d5(1)
658660
5.037
678403
5.038
97
60-140
-0.0010
+/-0.50
Page 84 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
IA-10 (23F1309-09RE1) Lab File ID: J23AI66026.D Analyzed: 06/15/23 20:44
Bromochloromethane (1)
291663
2.797
294149
2.812
99
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
745485
3.423
764052
3.435
98
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
661349
5.038
678403
5.038
97
60-140
0.0000
+/-0.50
IA-11 (23F1309-10RE1 Lab File ID: J23AI66027.D Analyzed: 06/15/23 21:10
Bromochloromethane (1)
294727
2.797
294149
2.812
100
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
747449
3.423
764052
3.435
98
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
666054
5.038
678403
5.038
98
60-140
0.0000
+/-0.50
IA-12 (23F1309-11RE1) Lab File ID: J23AI66028.D Analyzed: 06/15/23 21:37
Bromochloromethane (1)
290370
2.797
294149
2.812
99
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
737160
3.423
764052
3.435
96
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
669890
5.038
678403
5.038
99
60-140
0.0000
+/-0.50
Duplicate (B343523-DUP1) Lab File ID: J23AI66029.D Analyzed: 06/15/23 22:04
Bromochloromethane (1)
289209
2.797
294149
2.812
98
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
734652
3.423
764052
3.435
96
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
661912
5.037
678403
5.038
98
60-140
-0.0010
+/-0.50
IA-14 (23F1309-12RE1) Lab File ID: J23AI66030.D Analyzed: 06/15/23 22:30
Bromochloromethane (1)
289450
2.797
294149
2.812
98
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
740608
3.423
764052
3.435
97
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
659481
5.038
678403
5.038
97
60-140
0.0000
+/-0.50
IA-13 (23F1309-13RE1) Lab File ID: J23AI6603 LD Analyzed: 06/15/23 22:57
Bromochloromethane (1)
295457
2.797
294149
2.812
100
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
743200
3.424
764052
3.435
97
60-140
-0.0110
+/-0.50
Chlorobenzene-d5(1)
670101
5.038
678403
5.038
99
60-140
0.0000
+/-0.50
IA-18 (23F1309-16RE1) Lab File ID: J23A166032.D Analyzed: 06/15/23 23:23
Bromochloromethane (1)
286914
2.797
294149
2.812
98
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
741515
3.424
764052
3.435
97
60-140
-0.0110
+/-0.50
Chlorobenzene-d5(1)
668976
5.033
678403
5.038
99
60-140
-0.0050
+/-0.50
IA-19 (23F1309-17RE1) Lab File ID: J23AI66033.13 Analyzed: 06/15/23 23:49
Bromochloromethane (1)
298212
2.797
294149
2.812
101
60 - 140
-0.0150
+/-0.50
1,4-Difluorobenzene(1)
756874
3.423
764052
3.435
99
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
683279
5.038
678403
5.038
101
60-140
0.0000
+/-0.50
INTERNAL STANDARD AREA AND RT SUMMARY
EPA TO-15
Reference
Reference
Area 9 o
RT Diff
Internal Standard
Response
RT
Response
RT
Area %
Limits 11
RT Diff
Limit
Q
Page 85 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
Calibration Check (S089293-CCV1) Lab File ID: J23AI67004.D Analyzed: 06/16/23 10:06
Bromochloromethane (1)
289197
2.812
289197
2.812
100
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
725179
3.434
725179
3.434
100
60-140
0.0000
+/-0.50
Chlorobenzene-d5(1)
640163
5.039
640163
5.039
100
60-140
0.0000
+/-0.50
LCS (B343662-BS1 ) Lab File ID: J23AI67005.D Analyzed: 06/16/23 10:31
Bromochloromethane (1)
287884
2.812
289197
2.812
100
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
736213
3.435
725179
3.434
102
60-140
0.0010
+/-0.50
Chlorobenzene-d5(1)
646258
5.038
640163
5.039
101
60-140
-0.0010
+/-0.50
Blank (B343662-BLK1) Lab File ID: J23A167008.D Analyzed: 06/16/23 12:11
Bromochloromethane (1)
277891
2.796
289197
2.812
96
60 - 140
-0.0160
+/-0.50
1,4-Difluorobenzene(1)
667865
3.422
725179
3.434
92
60-140
-0.0120
+/-0.50
Chlorobenzene-d5(1)
592858
5.035
640163
5.039
93
60-140
-0.0040
+/-0.50
IA-23 (23F1309-19RE1) Lab File ID: J23A167009.D Analyzed: 06/16/23 12:36
Bromochloromethane (1)
278496
2.796
289197
2.812
96
60 - 140
-0.0160
+/-0.50
1,4-Difluorobenzene(1)
682401
3.423
725179
3.434
94
60-140
-0.0110
+/-0.50
Chlorobenzene-d5(1)
621470
5.037
640163
5.039
97
60-140
-0.0020
+/-0.50
IA-15 (23F1309-20RE1) Lab File ID: J23A167010.D Analyzed: 06/16/23 13:01
Bromochloromethane (1)
279480
2.796
289197
2.812
97
60 - 140
-0.0160
+/-0.50
1,4-Difluorobenzene(1)
683473
3.423
725179
3.434
94
60-140
-0.0110
+/-0.50
Chlorobenzene-d5(1)
624397
5.037
640163
5.039
98
60-140
-0.0020
+/-0.50
Page 86 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S089166-CCV 1
COMPOUND
TYPE.
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
Acetone
A
5.00
4.21
1.034114
0.8713592
-15.7
30
Benzene
A
5.00
5.11
0.8123645
0.8299341
2.2
30
Benzyl chloride
L
5.00
4.36
0.5056852
0.6616191
-12.8
30
Bromodichloromethane
A
5.00
5.14
0.6094342
0.6265999
2.8
30
Bromoform
A
5.00
5.58
0.4573839
0.5104991
11.6
30
Bromomethane
A
5.00
4.79
0.6761959
0.6481444
-4.1
30
1,3-Butadiene
A
5.00
5.47
0.5092257
0.5567335
9.3
30
2-Butanone (MEK)
A
5.00
6.00
1.148647
1.377272
19.9
30
Carbon Disulfide
A
5.00
4.31
2.001154
1.723588
-13.9
30
Carbon Tetrachloride
A
5.00
5.42
0.5037067
0.5456821
8.3
30
Chlorobenzene
A
5.00
4.81
0.7622773
0.7338418
-3.7
30
Chloroethane
A
5.00
4.95
0.4202137
0.4162072
-1.0
30
Chloroform
A
5.00
4.77
1.577837
1.506009
-4.6
30
Chloromethane
A
5.00
5.22
0.5966374
0.6233728
4.5
30
Cyclohexane
A
5.00
5.34
0.3246406
0.3464801
6.7
30
Dibromochloromethane
A
5.00
5.57
0.5189836
0.5780245
11.4
30
1,2-Dibromoethane (EDB)
A
5.00
5.18
0.4960864
0.5141993
3.7
30
1,2-Dichlorobenzene
A
5.00
5.68
0.4911951
0.5576666
13.5
30
1,3-Dichlorobenzene
A
5.00
5.31
0.5456808
0.5791446
6.1
30
1,4-Dichlorobenzene
A
5.00
5.30
0.5309926
0.562824
6.0
30
Dichlorodifluoromethane (Freon 12)
A
5.00
5.48
1.809285
1.981936
9.5
30
1,1-Dichloroethane
A
5.00
5.01
1.317427
1.319632
0.2
30
1,2-Dichloroethane
A
5.00
4.82
0.9730911
0.9371098
-3.7
30
1,1-Dichloroethylene
A
5.00
4.66
1.146845
1.068479
-6.8
30
cis-1,2-Dichloroethylene
A
5.00
5.06
0.9524103
0.9634482
1.2
30
trans-1,2-Dichloroethylene
A
5.00
5.13
1.02979
1.057295
2.7
30
1,2-Dichloropropane
A
5.00
5.24
0.3033695
0.3177788
4.7
30
cis-1,3-Dichloropropene
A
5.00
5.65
0.4042769
0.4570773
13.1
30
trans- l,3-Dichloropropene
A
5.00
5.89
0.3279415
0.3864965
17.9
30
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane (Freon 1
A
5.00
4.90
1.964888
1.924408
-2.1
30
1,4-Dioxane
A
5.00
5.02
0.1624784
0.1632826
0.5
30
Ethanol
A
5.00
4.64
0.1724202
0.1601764
-7.1
30
Ethyl Acetate
A
5.00
5.19
0.2040016
0.2118065
3.8
30
Ethylbenzene
A
5.00
5.39
1.293794
1.394149
7.8
30
4-Ethyltoluene
A
5.00
5.72
1.173601
1.341865
14.3
30
Heptane
A
5.00
5.73
0.2390228
0.2739832
14.6
30
Hexachlorobutadiene
A
5.00
8.66
0.2261563
0.3916633
73.2
30
Hexane
L
5.00
4.59
0.6738496
0.6217797
-8.3
30
Page 87 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S089166-CCV 1
COMPOUND
TYPE
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
2-Hexanone (MBK)
A
5.00
5.20
0.4320676
0.4489083
3.9
30
Isopropanol
A
5.00
4.52
1.163166
1.050824
-9.7
30
Methyl tert-Butyl Ether (MTBE)
A
5.00
4.92
1.752887
1.724168
-1.6
30
Methylene Chloride
A
5.00
3.95
0.8161184
0.6440498
-21.1
30
4-Methyl-2-pentanone (MI13K)
A
5.00
5.99
0.1991676
0.2384999
19.7
30
Naphthalene
A
5.00
7.45
0.4140914
0.6167946
49.0
30
Propene
A
5.00
6.28
0.3783566
0.4751444
25.6
30
Styrene
A
5.00
5.88
0.6193387
0.7285559
17.6
30
1,1,2,2-Tetrachloroethane
A
5.00
5.43
0.7875453
0.8546435
8.5
30
Tetrachloroethylene
A
5.00
4.90
0.4061033
0.3980121
-2.0
30
Tetrahydroforan
A
5.00
5.01
0.5602263
0.5612824
0.2
30
Toluene
A
5.00
5.34
0.9952737
1.062371
6.7
30
1,2,4-Trichlorobenzene
A
5.00
6.56
0.1951236
0.2559753
31.2
30
1, 1, 1 -Trichloroethane
A
5.00
5.27
0.5148362
0.5426416
5.4
30
1,1,2-Trichloroethane
A
5.00
5.22
0.3494055
0.364988
4.5
30
Trichloroethylene
A
5.00
5.07
0.3469588
0.3520192
1.5
30
Trichlorofluoromethane(Freon 11)
A
5.00
4.94
1.832227
1.810694
-1.2
30
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 11
A
5.00
4.43
1.363757
1.207807
-11.4
30
1,2,4-Trimethylbenzene
A
5.00
6.33
0.9035781
1.143574
26.6
30
1,3,5-Trimethylbenzene
A
5.00
6.21
0.9651619
1.197971
24.1
30
Vinyl Acetate
A
5.00
4.29
1.160867
0.9964551
-14.2
30
Vinyl Chloride
A
5.00
5.27
0.7330867
0.7720619
5.3
30
m&p-Xylene
A
10.0
11.6
1.010218
1.176028
16.4
30
o-Xylene
A
5.00
5.79
0.9862305
1.141943
15.8
30
# Column to be used to flag Response Factor and %Diff/Drift values with an asterisk
* Values outside of QC limits
Page 88 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S089178-CCV 1
COMPOUND
TYPE.
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
Acetone
A
5.00
4.21
1.034114
0.8713592
-15.7
30
Benzene
A
5.00
5.11
0.8123645
0.8299341
2.2
30
Benzyl chloride
L
5.00
4.36
0.5056852
0.6616191
-12.8
30
Bromodichloromethane
A
5.00
5.14
0.6094342
0.6265999
2.8
30
Bromoform
A
5.00
5.58
0.4573839
0.5104991
11.6
30
Bromomethane
A
5.00
4.79
0.6761959
0.6481444
-4.1
30
1,3-Butadiene
A
5.00
5.47
0.5092257
0.5567335
9.3
30
2-Butanone (MEK)
A
5.00
6.00
1.148647
1.377272
19.9
30
Carbon Disulfide
A
5.00
4.31
2.001154
1.723588
-13.9
30
Carbon Tetrachloride
A
5.00
5.42
0.5037067
0.5456821
8.3
30
Chlorobenzene
A
5.00
4.81
0.7622773
0.7338418
-3.7
30
Chloroethane
A
5.00
4.95
0.4202137
0.4162072
-1.0
30
Chloroform
A
5.00
4.77
1.577837
1.506009
-4.6
30
Chloromethane
A
5.00
5.22
0.5966374
0.6233728
4.5
30
Cyclohexane
A
5.00
5.34
0.3246406
0.3464801
6.7
30
Dibromochloromethane
A
5.00
5.57
0.5189836
0.5780245
11.4
30
1,2-Dibromoethane (EDB)
A
5.00
5.18
0.4960864
0.5141993
3.7
30
1,2-Dichlorobenzene
A
5.00
5.68
0.4911951
0.5576666
13.5
30
1,3-Dichlorobenzene
A
5.00
5.31
0.5456808
0.5791446
6.1
30
1,4-Dichlorobenzene
A
5.00
5.30
0.5309926
0.562824
6.0
30
Dichlorodifluoromethane (Freon 12)
A
5.00
5.48
1.809285
1.981936
9.5
30
1,1-Dichloroethane
A
5.00
5.01
1.317427
1.319632
0.2
30
1,2-Dichloroethane
A
5.00
4.82
0.9730911
0.9371098
-3.7
30
1,1-Dichloroethylene
A
5.00
4.66
1.146845
1.068479
-6.8
30
cis-1,2-Dichloroethylene
A
5.00
5.06
0.9524103
0.9634482
1.2
30
trans-1,2-Dichloroethylene
A
5.00
5.13
1.02979
1.057295
2.7
30
1,2-Dichloropropane
A
5.00
5.24
0.3033695
0.3177788
4.7
30
cis-1,3-Dichloropropene
A
5.00
5.65
0.4042769
0.4570773
13.1
30
trans- l,3-Dichloropropene
A
5.00
5.89
0.3279415
0.3864965
17.9
30
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane (Freon 1
A
5.00
4.90
1.964888
1.924408
-2.1
30
1,4-Dioxane
A
5.00
5.02
0.1624784
0.1632826
0.5
30
Ethanol
A
5.00
4.64
0.1724202
0.1601764
-7.1
30
Ethyl Acetate
A
5.00
5.19
0.2040016
0.2118065
3.8
30
Ethylbenzene
A
5.00
5.39
1.293794
1.394149
7.8
30
4-Ethyltoluene
A
5.00
5.72
1.173601
1.341865
14.3
30
Heptane
A
5.00
5.73
0.2390228
0.2739832
14.6
30
Hexachlorobutadiene
A
5.00
8.66
0.2261563
0.3916633
73.2
30
Hexane
L
5.00
4.59
0.6738496
0.6217797
-8.3
30
Page 89 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S089178-CCV 1
COMPOUND
TYPE
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
2-Hexanone (MBK)
A
5.00
5.20
0.4320676
0.4489083
3.9
30
Isopropanol
A
5.00
4.52
1.163166
1.050824
-9.7
30
Methyl tert-Butyl Ether (MTBE)
A
5.00
4.92
1.752887
1.724168
-1.6
30
Methylene Chloride
A
5.00
3.95
0.8161184
0.6440498
-21.1
30
4-Methyl-2-pentanone (MI13K)
A
5.00
5.99
0.1991676
0.2384999
19.7
30
Naphthalene
A
5.00
7.45
0.4140914
0.6167946
49.0
30
Propene
A
5.00
6.28
0.3783566
0.4751444
25.6
30
Styrene
A
5.00
5.88
0.6193387
0.7285559
17.6
30
1,1,2,2-Tetrachloroethane
A
5.00
5.43
0.7875453
0.8546435
8.5
30
Tetrachloroethylene
A
5.00
4.90
0.4061033
0.3980121
-2.0
30
Tetrahydroforan
A
5.00
5.01
0.5602263
0.5612824
0.2
30
Toluene
A
5.00
5.34
0.9952737
1.062371
6.7
30
1,2,4-Trichlorobenzene
A
5.00
6.56
0.1951236
0.2559753
31.2
30
1, 1, 1 -Trichloroethane
A
5.00
5.27
0.5148362
0.5426416
5.4
30
1,1,2-Trichloroethane
A
5.00
5.22
0.3494055
0.364988
4.5
30
Trichloroethylene
A
5.00
5.07
0.3469588
0.3520192
1.5
30
Trichlorofluoromethane(Freon 11)
A
5.00
4.94
1.832227
1.810694
-1.2
30
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 11
A
5.00
4.43
1.363757
1.207807
-11.4
30
1,2,4-Trimethylbenzene
A
5.00
6.33
0.9035781
1.143574
26.6
30
1,3,5-Trimethylbenzene
A
5.00
6.21
0.9651619
1.197971
24.1
30
Vinyl Acetate
A
5.00
4.29
1.160867
0.9964551
-14.2
30
Vinyl Chloride
A
5.00
5.27
0.7330867
0.7720619
5.3
30
m&p-Xylene
A
10.0
11.6
1.010218
1.176028
16.4
30
o-Xylene
A
5.00
5.79
0.9862305
1.141943
15.8
30
# Column to be used to flag Response Factor and %Diff/Drift values with an asterisk
* Values outside of QC limits
Page 90 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S089198-CCV 1
COMPOUND
TYPE.
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
Acetone
A
5.00
3.75
1.034114
0.7754546
-25.0
30
Benzene
A
5.00
4.57
0.8123645
0.7423118
-8.6
30
Benzyl chloride
L
5.00
4.02
0.5056852
0.6073275
-19.7
30
Bromodichloromethane
A
5.00
4.60
0.6094342
0.56121
-7.9
30
Bromoform
A
5.00
4.82
0.4573839
0.4407221
-3.6
30
Bromomethane
A
5.00
4.14
0.6761959
0.5596239
-17.2
30
1,3-Butadiene
A
5.00
4.89
0.5092257
0.4978919
-2.2
30
2-Butanone (MEK)
A
5.00
5.60
1.148647
1.285786
11.9
30
Carbon Disulfide
A
5.00
3.88
2.001154
1.554423
-22.3
30
Carbon Tetrachloride
A
5.00
4.81
0.5037067
0.4848885
-3.7
30
Chlorobenzene
A
5.00
4.30
0.7622773
0.6547613
-14.1
30
Chloroethane
A
5.00
4.38
0.4202137
0.3678245
-12.5
30
Chloroform
A
5.00
4.24
1.577837
1.338946
-15.1
30
Chloromethane
A
5.00
4.30
0.5966374
0.5131549
-14.0
30
Cyclohexane
A
5.00
4.84
0.3246406
0.313897
-3.3
30
Dibromochloromethane
A
5.00
4.91
0.5189836
0.50971
-1.8
30
1,2-Dibromoethane (EDB)
A
5.00
4.68
0.4960864
0.4642739
-6.4
30
1,2-Dichlorobenzene
A
5.00
4.92
0.4911951
0.4834837
-1.6
30
1,3-Dichlorobenzene
A
5.00
4.71
0.5456808
0.5143421
-5.7
30
1,4-Dichlorobenzene
A
5.00
4.67
0.5309926
0.4957572
-6.6
30
Dichlorodifluoromethane (Freon 12)
A
5.00
4.71
1.809285
1.704002
-5.8
30
1,1-Dichloroethane
A
5.00
4.44
1.317427
1.17096
-11.1
30
1,2-Dichloroethane
A
5.00
4.30
0.9730911
0.8372464
-14.0
30
1,1-Dichloroethylene
A
5.00
4.15
1.146845
0.9511479
-17.1
30
cis-1,2-Dichloroethylene
A
5.00
4.57
0.9524103
0.871319
-8.5
30
trans-1,2-Dichloroethylene
A
5.00
4.53
1.02979
0.9332032
-9.4
30
1,2-Dichloropropane
A
5.00
4.76
0.3033695
0.288839
-4.8
30
cis-1,3-Dichloropropene
A
5.00
5.21
0.4042769
0.4213682
4.2
30
trans- l,3-Dichloropropene
A
5.00
5.50
0.3279415
0.3604781
9.9
30
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane (Freon 1
A
5.00
4.24
1.964888
1.666339
-15.2
30
1,4-Dioxane
A
5.00
4.56
0.1624784
0.1482726
-8.7
30
Ethanol
A
5.00
4.06
0.1724202
0.1399672
-18.8
30
Ethyl Acetate
A
5.00
4.87
0.2040016
0.1985388
-2.7
30
Ethylbenzene
A
5.00
4.81
1.293794
1.243756
-3.9
30
4-Ethyltoluene
A
5.00
5.21
1.173601
1.223247
4.2
30
Heptane
A
5.00
5.26
0.2390228
0.2514865
5.2
30
Hexachlorobutadiene
4
5.00
7.60
0.2261563
0.3435622
51.9
30
Hexane
L
5.00
4.26
0.6738496
0.5790154
-14.7
30
Page 91 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S089198-CCV 1
COMPOUND
TYPE
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
2-Hexanone (MBK)
A
5.00
5.05
0.4320676
0.4365877
1.0
30
Isopropanol
A
5.00
3.95
1.163166
0.9192566
-21.0
30
Methyl tert-Butyl Ether (MTBE)
A
5.00
4.60
1.752887
1.611771
-8.1
30
Methylene Chloride
A
5.00
3.62
0.8161184
0.5913085
-27.5
30
4-Methyl-2-pentanone (MI13K)
A
5.00
5.66
0.1991676
0.2256747
13.3
30
Naphthalene
A
5.00
6.96
0.4140914
0.5767663
39.3
30
Propene
A
5.00
5.42
0.3783566
0.4104804
8.5
30
Styrene
A
5.00
5.31
0.6193387
0.6572094
6.1
30
1,1,2,2-Tetrachloroethane
A
5.00
4.86
0.7875453
0.7651594
-2.8
30
Tetrachloroethylene
A
5.00
4.27
0.4061033
0.3465857
-14.7
30
Tetrahydroforan
A
5.00
4.74
0.5602263
0.5312192
-5.2
30
Toluene
A
5.00
4.82
0.9952737
0.9591656
-3.6
30
1,2,4-Trichlorobenzene
A
5.00
6.15
0.1951236
0.2398598
22.9
30
1, 1, 1 -Trichloroethane
A
5.00
4.69
0.5148362
0.4829347
-6.2
30
1,1,2-Trichloroethane
A
5.00
4.59
0.3494055
0.3209538
-8.1
30
Trichloroethylene
A
5.00
4.59
0.3469588
0.3183511
8.2
30
Trichlorofluoromethane(Freon 11)
A
5.00
4.25
1.832227
1.558677
-14.9
30
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 11
A
5.00
3.93
1.363757
1.071245
-21.4
30
1,2,4-Trimethylbenzene
A
5.00
5.72
0.9035781
1.033217
14.3
30
1,3,5-Trimethylbenzene
A
5.00
5.45
0.9651619
1.051627
9.0
30
Vinyl Acetate
A
5.00
4.34
1.160867
1.007571
-13.2
30
Vinyl Chloride
A
5.00
4.64
0.7330867
0.6807543
-7.1
30
m&p-Xylene
A
1 10.0
10.3
1.010218
1.04046
3.0
30
o-Xylene
A
1 5.00
5.13
0.9862305
1.012144
2.6
30
# Column to be used to flag Response Factor and %Diff/Drift values with an asterisk
* Values outside of QC limits
Page 92 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S089293-CCV 1
COMPOUND
TYPE.
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
Acetone
A
5.00
3.86
1.034114
0.7994274
-22.7
30
Benzene
A
5.00
4.64
0.8123645
0.7535883
-7.2
30
Benzyl chloride
L
5.00
4.04
0.5056852
0.6113018
-19.2
30
Bromodichloromethane
A
5.00
4.90
0.6094342
0.5968866
-2.1
30
Bromoform
A
5.00
5.06
0.4573839
0.4627396
1.2
30
Bromomethane
A
5.00
4.22
0.6761959
0.5710709
-15.5
30
1,3-Butadiene
A
5.00
4.97
0.5092257
0.5064285
-0.5
30
2-Butanone (MEK)
A
5.00
5.62
1.148647
1.291715
12.5
30
Carbon Disulfide
A
5.00
3.99
2.001154
1.598285
-20.1
30
Carbon Tetrachloride
A
5.00
5.04
0.5037067
0.507964
0.8
30
Chlorobenzene
A
5.00
4.56
0.7622773
0.6946131
-8.9
30
Chloroethane
A
5.00
4.54
0.4202137
0.3818297
-9.1
30
Chloroform
A
5.00
4.31
1.577837
1.359173
-13.9
30
Chloromethane
A
5.00
4.58
0.5966374
0.5465174
-8.4
30
Cyclohexane
A
5.00
5.01
0.3246406
0.3254567
0.3
30
Dibromochloromethane
A
5.00
5.18
0.5189836
0.5372957
3.5
30
1,2-Dibromoethane(EDB)
A
5.00
4.85
0.4960864
0.4813624
-3.0
30
1,2-Dichlorobenzene
A
5.00
5.28
0.4911951
0.5186854
5.6
30
1,3-Dichlorobenzene
A
5.00
5.37
0.5456808
0.5856059
7.3
30
1,4-Dichlorobenzene
A
5.00
5.17
0.5309926
0.5492876
3.4
30
Dichlorodifluoromethane (Freon 12)
A
5.00
4.86
1.809285
1.758563
-2.8
30
1,1-Dichloroethane
A
5.00
4.55
1.317427
1.199609
-8.9
30
1,2-Dichloroethane
A
5.00
4.33
0.9730911
0.8425703
-13.4
30
1,1-Dichloroethylene
A
5.00
4.24
1.146845
0.9728344
-15.2
30
cis-1,2-Dichloroethylene
A
5.00
4.62
0.9524103
0.8809165
-7.5
30
trans-1,2-Dichloroethylene
A
5.00
4.69
1.02979
0.96614
-6.2
30
1,2-Dichloropropane
A
5.00
5.01
0.3033695
0.3040706
0.2
30
cis-1,3-Dichloropropene
A
5.00
5.34
0.4042769
0.4315977
6.8
30
trans- l,3-Dichloropropene
A
5.00
5.67
0.3279415
0.3717659
13.4
30
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane (Freon 1
A
5.00
4.34
1.964888
1.705274
-13.2
30
1,4-Dioxane
A
5.00
4.87
0.1624784
0.1582087
-2.6
30
Ethanol
A
5.00
4.47
0.1724202
0.1539988
-10.7
30
Ethyl Acetate
A
5.00
4.81
0.2040016
0.1962731
-3.8
30
Ethylbenzene
A
5.00
5.07
1.293794
1.312476
1.4
30
4-Ethyltoluene
A
5.00
5.26
1.173601
1.235388
5.3
30
Heptane
A
5.00
5.51
0.2390228
0.2634825
10.2
30
Hexachlorobutadiene
4
5.00
7.85
0.2261563
0.3550471
57.0
30
Hexane
L
5.00
4.34
0.6738496
0.5891237
-13.2
30
Page 93 of 102

con-testo
A Face Analy6call Laboratory
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S089293-CCV 1
COMPOUND
TYPE
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
2-Hexanone (MBK)
A
5.00
5.22
0.4320676
0.4515325
4.5
30
Isopropanol
A
5.00
4.06
1.163166
0.9457083
-18.7
30
Methyl tert-Butyl Ether (MTBE)
A
5.00
4.49
1.752887
1.57387
-10.2
30
Methylene Chloride
A
5.00
3.78
0.8161184
0.6167146
-24.4
30
4-Methyl-2-pentanone (MI13K)
A
5.00
5.85
0.1991676
0.2331628
17.1
30
Naphthalene
A
5.00
6.68
0.4140914
0.5536515
33.7
30
Propene
A
5.00
5.62
0.3783566
0.4250224
12.3
30
Styrene
A
5.00
5.52
0.6193387
0.6839183
10.4
30
1,1,2,2-Tetrachloroethane
A
5.00
5.12
0.7875453
0.8064221
2.4
30
Tetrachloroethylene
A
5.00
4.52
0.4061033
0.366929
-9.6
30
Tetrahydroforan
A
5.00
4.71
0.5602263
0.5281549
-5.7
30
Toluene
A
5.00
5.02
0.9952737
0.9990106
0.4
30
1,2,4-Trichlorobenzene
A
5.00
5.94
0.1951236
0.231766
18.8
30
1, 1, 1 -Trichloroethane
A
5.00
4.94
0.5148362
0.5084119
-1.2
30
1,1,2-Trichloroethane
A
5.00
4.86
0.3494055
0.339696
-2.8
30
Trichloroethylene
A
5.00
4.79
0.3469588
0.3321663
-4.3
30
Trichlorofluoromethane(Freon 11)
A
5.00
4.34
1.832227
1.590169
-13.2
30
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 11
A
5.00
3.97
1.363757
1.083613
-20.5
30
1,2,4-Trimethylbenzene
A
5.00
5.98
0.9035781
1.080532
19.6
30
1,3,5-Trimethylbenzene
A
5.00
5.85
0.9651619
1.12903
17.0
30
Vinyl Acetate
A
5.00
4.10
1.160867
0.9514511
-18.0
30
Vinyl Chloride
A
5.00
4.74
0.7330867
0.6951607
-5.2
30
m&p-Xylene
A
10.0
11.0
1.010218
1.106877
9.6
30
o-Xylene
A
5.00
5.46
0.9862305
1.075963
9.1
30
# Column to be used to flag Response Factor and %Diff/Drift values with an asterisk
* Values outside of QC limits
Page 94 of 102

con-testo
A Face Analytical' Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ' FAX [phone] " TEL. [phone]
CERTIFICATIONS
Certified Analyses included in this Report
Analyte
EPA TO-15 in Air
Acetone
Benzene
Benzyl chloride
Bromodichloromethane
Bromoform
Bromomethane
1,3-Butadiene
2-Butanone (MEK)
Carbon Disulfide
Carbon Tetrachloride
Chlorobenzene
Chloroethane
Chloroform
Chloromethane
Cyclohexane
Dibromochloromethane
1,2-Dibromoethane (EDB)
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,4-Dichlorobenzene
Dichlorodifluoromethane (Freon 12)
1,1-Dichloroethane
1,2-Dichloroethane
1,1-Dichloroethylene
cis-1,2-Dichloroethylene
trans- l,2-Dichloro ethylene
1,2-Dichloropropane
cis- 1,3 -Dichloropropene
trans- 1, 3 -Dichloropropene
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
1,4-Dioxane
Ethanol
Ethyl Acetate
Ethylbenzene
4-Ethyltoluene
Heptane
Hexachlorobutadiene
Hexane
2-Hexanone (MBK)
Isopropanol
Methyl tart -Butyl Ether (MTBE)
Methylene Chloride
4-Methyl-2-pentanone (MIBK)
Naphthalene
Propene
Styrene
1,1,2,2-Tetrachloroethane
Certifications
AIHA,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NJ,NY,ME,NH,VA
AIHA,NJ,NY,ME,NH,VA
AIHA,FL,NJ,NY,ME,NH
AIHA,NJ,NY,ME,NH,VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA, FL,NJ,NY,ME,NH, VA
AIHA,NJ,NY,ME,NH,VA
AIHA,NY,ME,NH
AIHA,NJ,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NJ,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NY,ME,NH,VA
AIHA,NJ,NY,ME,NH,VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NY,ME,NH
AIHA,NJ,NY,ME,NH,VA
AIHA,NJ,NY,ME,NH,VA
AIHA
AIHA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA
AIHA,NJ,NY,ME,NH,VA
AIHA,NJ,NY,ME,NH,VA
AIHA, FL,NJ,NY,ME,NH, VA
AIHA
AIHA,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH
NY,ME,NH
AIHA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
Page 95 of 102

con-testo
A Face Analytical' Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ' FAX [phone] " TEL. [phone]
CERTIFICATIONS
Certified Analyses included in this Report
Analyte
EPA TO-15 in Air
Tetrachloroethylene
Tetrahydrofuran
Toluene
1,2,4-Trichlorobenzene
1, 1, 1 -Trichloroethane
1,1,2-Trichloroethane
Trichloroethylene
Trichlorofluoromethane (Freon 11)
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
1,2,4-Trimethylbenzene
1,3,5-Trimethylbenzene
Vinyl Acetate
Vinyl Chloride
m&p-Xylene
o-Xylene
Certifications
AIHA,FL,NJ,NY,ME,NH, VA
AIHA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NJ,NY,ME,NH,VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NY,ME,NH
AIHA,NJ,NY,ME,NH,VA
AIHA,NJ,NY,ME,NH
AIHA,NJ,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA, FL,NJ,NY,ME,NH, VA
AIHA, FL,NJ,NY,ME,NH, VA
Con -Test, a Pace Environmental Laboratory, operates under the following certifications and accreditation:
Code
Description
Number
Expires
AHIA
AIHA-LAP, LLC - ISO 17025:2017
100033
03/l/2024
NY
New York State Department of Health
10899 NELAP
04/1/2024
NH
New Hampshire Environmental Lab
2516 NELAP
02/5/2024
NJ
New Jersey DEP
MA007 NELAP
06/30/2023
FL
Florida Department of Health
E871027 NELAP
06/30/2024
ME
State of Maine
MA00100
06/9/2025
VA
Commonwealth of Virginia
460217
12/14/2023
Page 96 of 102

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Page 100 of 102

6/ 12/23, 9:27 AM
Detailed Tracking
FedEx® Tracking
TRACKING ID
Mufti -piece shipment
772371658582 (master)
Multi -piece shipment
772371659762
MUlti-piece shipment
772371659887
Multi -piece shipment
772371659144
Multi -piece shipment
772371659648
Multi -piece shipment
772371659442
Multi -piece shipment
772371659876
Summary Tracking Results
SHIPPER
SHIP CITY RECIPIENT CITY, STATUS
DATE STATE STATE
DELIVERY
DATE
6/07/2023 RALEIGH, NC EAST LONGMEADOW, MA Delivered 6/09/2023 1,29 pm
6/07/2023 RALEIGH, NC EAST LONGMEADOW, MA Delivered 6/09/2023 1:29 pm
6/07/2023 RALEIGH, INC EAST LONGMEADOW, MA Delivered 6/09/2023 1 29 pm
6/07/2023 RALEIGH, NC EAST LONGMEADOW, MA Delivered 6/09/2023 1:29 pm
6/07/2023 RALEIGH, NC EAST LONGMEADOW, MA Delivered 6/09/2023 1:79 pm
610712023 RALEIGH, NC EAST LONGMEADOW, MA Delivered 6/09/2023 1:29 pm
6/07/2023 RALEIGH, NC EAST LONGMEADOW, MA Delivered 6/09/2023 1 29 pm
Mufti -piece shipment
772371659773 6/07/2023 RALEIGH, NC LAST LONGMEADOW, MA Delivered 6/U9/2023 4:34 pm
OUR COMPANY
About FedEx(https://www.fedex.com/en-us/about.html)
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Contact Us(https://www.fedex.com/en-us/customer-support/contact-us.htmi)
SCHEDULED
DELIVERY
DATE
OBTAIN PROOF OF DELIVER)
https://www.fedex.com/fedextrack/summary?trknbr=772371658582,772371659762,772371659887,772371659144,772371659648,7723 Page 101 of 102

39 Spruce St.
East Longmeadow, MA. 01028
P: 413-525-2332
F:413-525-6405
www.pacelabs.com
ENV-FRM-ELON-0009V02_Air Sample Receiving Checklist 1-12-2023
Log In Back -Sheet
Login Sample Receipt Checklist —(Rejection Criteria Listing
— Using Acceptance Policy) Any False statement will be Peav-Le AOYANC1NG SCIMCe
brought to the attention of the Client —True or False
True False
Client._iQt�C�_ `G�t�t�C ��SCCiC� r lfrC.
Project_ LOML( (Mf�q ) Mt�, 3)
MCP/RCP Required
Deliverable Package Requirement
Location 14
PWSID# (When Applicable)
Arrival Method°C CX 1-123 '1W5 SE,'�7-
Received By / Date / Time V-MC, CaIq IL `t33 Ca
Back -Sheet By / Date / Time (L I t Z IZ.3 QA C
Temperature Method
Temp < 6o C ❑ Actual Temperature
Rush Samples: Yes / Notify
Short Hold: Yes / Notify
Notes regarding Samples/COC Outside Of SOP:
Ccky\ e (�—t io cell tiv eci y'v'�Y�
❑
Received on Ice
❑
Received in Cooler
❑
Custody Seal: DATE TIME
® ❑
COC Relinquished
® ❑
COC/Samples Labels Agree
© ❑
All Samples in Good Condition
® ❑
Samples Received within Holdin Time
© ❑
Is there enough Volume
® ❑
Proper Media/Container Used
Individually Certified Cans C'�
® ❑
❑
Trip Blanks
IZI
❑
COC Legible
COC Included: (Check all included)
Client © Analysis© Sampler Name El
ProjectEl ID5 ® Collection Date/Time El
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Page 102 Of 102

APPENDIX E
LABORATORY ANALYTICAL REPORTS AND
CHAIN -OF -CUSTODY RECORDS FOR
SUB -SLAB SOIL GAS SAMPLES
U Mid Atlantic

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
June 19, 2023
Nolen Barefoot
Mid -Atlantic Associates, Inc. - Raleigh, NC
409 Rogers View Court
Raleigh, NC 27610
Project Location: Raleigh, NC
Client Job Number:
Project Number: R3746.00
Laboratory Work Order Number: 23F1634
Enclosed are results of analyses for samples as received by the laboratory on June 13, 2023. If you have any questions
concerning this report, please feel free to contact me.
Sincerely,
Rebecca Faust
Project Manager
QA Officer
Katherine Allen
Laboratory Manager
Daren Damboragian
Page 1 of 84

con-testo
A Pace Analytical' Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
Mid -Atlantic Associates, Inc. - Raleigh, NC REPORT DATE: 6/19/2023
409 Rogers View Court
Raleigh, NC 27610 PURCHASE ORDER NUMBER:
ATTN: Nolen Barefoot
PROJECT NUMBER: R3746.00
ANALYTICAL SUMMARY
WORK ORDER NUMBER: 23F1634
The results of analyses performed on the following samples submitted to Con -Test, a Pace Analytical Laboratory, are found in this report.
PROJECT LOCATION: Raleigh, NC
FIELD SAMPLE # LAB ID: MATRIX SAMPLE DESCRIPTION TEST SUB LAB
MP-25
23F1634-01
Sub Slab
EPA TO-15
MP-24
23171634-02
Sub Slab
EPA TO-15
MP-23
23F1634-03
Sub Slab
EPA TO-15
MP-15
23171634-04
Sub Slab
EPA TO-15
MP-21
23171634-05
Sub Slab
EPA TO-15
MP-22
23F1634-06
Sub Slab
EPA TO-15
MP-20
23171634-07
Sub Slab
EPA TO-15
MP-19
23171634-08
Sub Slab
EPA TO-15
MP-18
23F1634-09
Sub Slab
EPA TO-15
MP-17
23171634-10
Sub Slab
EPA TO-15
MP-16
23171634-11
Sub Slab
EPA TO-15
MP-13
23F1634-12
Sub Slab
EPA TO-15
MP-13 DUP
23171634-13
Sub Slab
EPA TO-15
MP-14
23171634-14
Sub Slab
EPA TO-15
MP-12
23F1634-15
Sub Slab
EPA TO-15
MP-10
23171634-16
Sub Slab
EPA TO-15
MP-11
23171634-17
Sub Slab
EPA TO-15
MP-8
23F1634-18
Sub Slab
EPA TO-15
MP-9
23171634-19
Sub Slab
EPA TO-15
MP-7
23171634-20
Sub Slab
EPA TO-15
Page 2 of 84

con-testo
A Pace Analytical' Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
Mid -Atlantic Associates, Inc. - Raleigh, NC REPORT DATE: 6/19/2023
409 Rogers View Court
Raleigh, NC 27610 PURCHASE ORDER NUMBER:
ATTN: Nolen Barefoot
PROJECT NUMBER: R3746.00
ANALYTICAL SUMMARY
WORK ORDER NUMBER: 23F1634
The results of analyses performed on the following samples submitted to Con -Test, a Pace Analytical Laboratory, are found in this report.
PROJECT LOCATION: Raleigh, NC
FIELD SAMPLE # LAB ID: MATRIX SAMPLE DESCRIPTION TEST SUB LAB
MP-6
231`1634-21
Sub Slab
EPA TO-15
MP-5
23171634-22
Sub Slab
EPA TO-15
MP-4
23FI634-23
Sub Slab
EPA TO-15
MP-3
23171634-24
Sub Slab
EPA TO-15
MP-2
23171634-25
Sub Slab
EPA TO-15
MP -I
23FI634-26
Sub Slab
EPA TO-15
MP-1 DUP
23171634-27
Sub Slab
EPA TO-15
UNUSED
23171634-28
UNUSED
23FI634-29
UNUSED
23FI634-30
Page 3 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CASE NARRATIVE SUMMARY
All reported results are within defined laboratory quality control objectives unless listed below or otherwise qualified in this report.
EPA TO-15
Qualifications:
V-06 Continuing calibration verification (CCV) did not meet method specifications and was biased on the high side for this compound.
Analyte & Samples(s) Qualified:
2-Hexanone (MBK), 4-Methyl-2-pentanone (MIBK), Acetone, m&p-Xylene, o-Xylene
23F1634-03[MP-23], 23F1634-08[MP-19], 23F1634-09[MP-18], 23F1634-10[MP-17], 23F 1634- 11 [MP- 16], 23F1634-13[MP-13 DUP], 23F1634-19[MP-9], B343675-BS1,
B343702-BS1, 5089310-CCVI, 5089326-CCVI, 23F1634-14[MP-14], 23F1634-15[MP-12], 23F1634-17[MP-11], 23F1634-20[MP-7], 23F1634-21[MP-6],
23F1634-22[MP-5], 23F1634-23[MP-4], 23F1634-24[MP-3], 23F1634-25[MP-2], 231`1634-26[MP-1], 23F1634-27[MP-1 DUP], B343702-DUPI, 23F1634-06[MP-22]
V-20 Continuing calibration verification (CCV) did not meet method specifications and was biased on the high side. Data validation is not affected
since sample result was "not detected" for this compound.
Analyte & Samples(s) Qualified:
4-Methyl-2-pentanone (MIBK), Benzyl chloride
B343675-BS1, 5089310-CCVI
The results of analyses reported only relate to samples submitted to Con -Test, a Pace Analytical Laboratory, for testing.
I certify that the analyses listed above, unless specifically listed as subcontracted, if any, were performed under my direction according to the approved methodologies listed
in this document, and that based upon my inquiry of those individuals immediately responsible for obtaining the information, the material contained in this report is, to the
best of my knowledge and belief, accurate and complete.
d�
Lisa A. Worthington
Technical Representative
Page 4 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-25
Sample ID: 23F1634-01
Sample Matrix: Sub Slab
Sampled: 6/7/2023 07:53
Sample Description/Location:
Sub Description/Location:
Canister ID: 2822
Canister Size: 1 liter
Flow Controller ID: 4584
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -27.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -4.7
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual
Results
RL
MDL
Dilution
Analyzed
Analyst
Acetone
ND
8.0
4.8
ND
19
11
4
6/17/23 3:29
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 3:29
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 3:29
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 3:29
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 3:29
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23 3:29
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 3:29
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/17/23 3:29
CMR
Carbon Disulfide
0.34
2.0
0.18
J
1.0
6.2
0.58
4
6/17/23 3:29
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 3:29
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 3:29
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/17/23 3:29
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23 3:29
CMR
Chloromethane
ND
0.40
0.16
ND
0.83
0.33
4
6/17/23 3:29
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/17/23 3:29
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 3:29
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 3:29
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 3:29
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 3:29
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 3:29
CMR
Dichlorodifluoromethane (Freon 12)
0.45
0.20
0.20
2.2
0.99
0.97
4
6/17/23 3:29
CMR
1, 1 -Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 3:29
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 3:29
CMR
1, 1 -Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 3:29
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 3:29
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 3:29
CMR
1,2-Dichloropropane
0.12
0.20
0.11
J
0.55
0.92
0.50
4
6/17/23 3:29
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 3:29
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 3:29
CMR
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 3:29
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23 3:29
CMR
Ethanol
22
8.0
3.5
41
15
6.6
4
6/17/23 3:29
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 3:29
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23 3:29
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 3:29
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23 3:29
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 3:29
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 3:29
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/17/23 3:29
CMR
Isopropanol
7.5
8.0
1.4
J
19
20
3.4
4
6/17/23 3:29
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 3:29
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23 3:29
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/17/23 3:29
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23 3:29
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 3:29
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23 3:29
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 3:29
CMR
Page 5 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -27.5
Field Sample #: MP-25
Canister ID: 2822
Final Vacuum(in Hg): -5
Sample ID: 23F1634-01
Canister Size: 1 liter
Receipt Vacuum(in Hg): -4.7
Sample Matrix: Sub Slab
Flow Controller ID: 4584
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 07:53
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 3:29
CMR
Tetrahydrofuran
ND
2.0
0.33
ND
5.9
0.97
4
6/17/23 3:29
CMR
Toluene
0.15
0.20
0.11
J 0.57
0.75
0.43
4
6/17/23 3:29
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 3:29
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23 3:29
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 3:29
CMR
Trichloroethylene
0.16
0.20
0.13
J 0.84
1.1
0.72
4
6/17/23 3:29
CMR
Trichlorofluoromethane (Freon 11)
1.7
0.80
0.24
9.7
4.5
1.3
4
6/17/23 3:29
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/17/23 3:29
CMR
1,2,4-Trimethylbenzene
0.29
0.20
0.088
1.4
0.98
0.43
4
6/17/23 3:29
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 3:29
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23 3:29
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 3:29
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/17/23 3:29
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/17/23 3:29
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 94.0 70-130 6/17/23 3:29
Page 6 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28
Field Sample #: MP-24
Canister ID: 2785
Final Vacuum(in Hg): -5
Sample ID: 23F1634-02
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.0
Sample Matrix: Sub Slab
Flow Controller ID: 4583
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 08:16
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
ND
8.0
4.8
ND
19
11
4
6/17/23 4:11
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 4:11
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 4:11
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 4:11
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 4:11
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23 4:11
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 4:11
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/17/23 4:11
CMR
Carbon Disulfide
0.39
2.0
0.18
J 1.2
6.2
0.58
4
6/17/23 4:11
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 4:11
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 4:11
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/17/23 4:11
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23 4:11
CMR
Chloromethane
ND
0.40
0.16
ND
0.83
0.33
4
6/17/23 4:11
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/17/23 4:11
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 4:11
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 4:11
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 4:11
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 4:11
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 4:11
CMR
Dichlorodifluoromethane (Freon 12)
0.35
0.20
0.20
1.7
0.99
0.97
4
6/17/23 4:11
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 4:11
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 4:11
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 4:11
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 4:11
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 4:11
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/17/23 4:11
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 4:11
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 4:11
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 4:11
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23 4:11
CMR
Ethanol
16
8.0
3.5
31
15
6.6
4
6/17/23 4:11
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 4:11
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23 4:11
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 4:11
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23 4:11
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 4:11
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 4:11
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/17/23 4:11
CMR
Isopropanol
1.5
8.0
1.4
J 3.7
20
3.4
4
6/17/23 4:11
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 4:11
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23 4:11
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/17/23 4:11
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23 4:11
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 4:11
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23 4:11
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 4:11
CMR
Page 7 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28
Field Sample #: MP-24
Canister ID: 2785
Final Vacuum(in Hg): -5
Sample ID: 23F1634-02
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.0
Sample Matrix: Sub Slab
Flow Controller ID: 4583
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 08:16
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 4:11
CMR
Tetrahydrofuran
ND
2.0
0.33
ND
5.9
0.97
4
6/17/23 4:11
CMR
Toluene
0.14
0.20
0.11
J 0.54
0.75
0.43
4
6/17/23 4:11
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 4:11
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23 4:11
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 4:11
CMR
Trichloroethylene
0.29
0.20
0.13
1.6
1.1
0.72
4
6/17/23 4:11
CMR
Trichlorofluoromethane (Freon 11)
0.42
0.80
0.24
J 2.3
4.5
1.3
4
6/17/23 4:11
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/17/23 4:11
CMR
1,2,4-Trimethylbenzene
0.24
0.20
0.088
1.2
0.98
0.43
4
6/17/23 4:11
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 4:11
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23 4:11
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 4:11
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/17/23 4:11
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/17/23 4:11
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 93.0 70-130 6/17/23 4:11
Page 8 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -27.5
Field Sample #: MP-23
Canister ID: 2110
Final Vacuum(in Hg): -5
Sample ID: 23F1634-03
Canister Size: 1 liter
Receipt Vacuum(in Hg): -4.8
Sample Matrix: Sub Slab
Flow Controller ID: 4575
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 08:34
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
8.1
8.0
4.8
19
19
11
4
6/17/23 4:53
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 4:53
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 4:53
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 4:53
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 4:53
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23 4:53
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 4:53
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/17/23 4:53
CMR
Carbon Disulfide
1.4
2.0
0.18
J
4.4
6.2
0.58
4
6/17/23 4:53
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 4:53
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 4:53
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/17/23 4:53
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23 4:53
CMR
Chloromethane
0.24
0.40
0.16
J
0.50
0.83
0.33
4
6/17/23 4:53
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/17/23 4:53
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 4:53
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 4:53
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 4:53
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 4:53
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 4:53
CMR
Dichlorodifluoromethane (Freon 12)
0.39
0.20
0.20
1.9
0.99
0.97
4
6/17/23 4:53
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 4:53
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 4:53
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 4:53
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 4:53
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 4:53
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/17/23 4:53
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 4:53
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 4:53
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 4:53
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23 4:53
CMR
Ethanol
19
8.0
3.5
36
15
6.6
4
6/17/23 4:53
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 4:53
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23 4:53
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 4:53
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23 4:53
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 4:53
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 4:53
CMR
2-Hexanone (MBK)
0.22
0.20
0.10
V-06
0.92
0.82
0.41
4
6/17/23 4:53
CMR
Isopropanol
9.4
8.0
1.4
23
20
3.4
4
6/17/23 4:53
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 4:53
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23 4:53
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/17/23 4:53
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23 4:53
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 4:53
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23 4:53
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 4:53
CMR
Page 9 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -27.5
Field Sample #: MP-23
Canister ID: 2110
Final Vacuum(in Hg): -5
Sample ID: 23F1634-03
Canister Size: 1 liter
Receipt Vacuum(in Hg): -4.8
Sample Matrix: Sub Slab
Flow Controller ID: 4575
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 08:34
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 4:53
CMR
Tetrahydrofuran
ND
2.0
0.33
ND
5.9
0.97
4
6/17/23 4:53
CMR
Toluene
0.25
0.20
0.11
0.93
0.75
0.43
4
6/17/23 4:53
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 4:53
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23 4:53
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 4:53
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/17/23 4:53
CMR
Trichlorofluoromethane (Freon 11)
3.0
0.80
0.24
17
4.5
1.3
4
6/17/23 4:53
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.28
0.80
0.22
J 2.2
6.1
1.7
4
6/17/23 4:53
CMR
1,2,4-Trimethylbenzene
0.28
0.20
0.088
1.4
0.98
0.43
4
6/17/23 4:53
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 4:53
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23 4:53
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 4:53
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/17/23 4:53
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/17/23 4:53
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 93.2 70-130 6/17/23 4:53
Page 10 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28
Field Sample #: MP-15
Canister ID: 2794
Final Vacuum(in Hg): -5
Sample ID: 23F1634-04
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.2
Sample Matrix: Sub Slab
Flow Controller ID: 4700
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 08:50
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
ND
8.0
4.8
ND
19
11
4
6/17/23
5:35
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23
5:35
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23
5:35
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23
5:35
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23
5:35
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23
5:35
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23
5:35
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/17/23
5:35
CMR
Carbon Disulfide
0.32
2.0
0.18
J 1.00
6.2
0.58
4
6/17/23
5:35
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23
5:35
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23
5:35
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/17/23
5:35
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23
5:35
CMR
Chloromethane
ND
0.40
0.16
ND
0.83
0.33
4
6/17/23
5:35
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/17/23
5:35
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23
5:35
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23
5:35
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23
5:35
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23
5:35
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23
5:35
CMR
Dichlorodifluoromethane (Freon 12)
0.38
0.20
0.20
1.9
0.99
0.97
4
6/17/23
5:35
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23
5:35
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23
5:35
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23
5:35
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23
5:35
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23
5:35
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/17/23
5:35
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23
5:35
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23
5:35
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23
5:35
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23
5:35
CMR
Ethanol
18
8.0
3.5
33
15
6.6
4
6/17/23
5:35
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23
5:35
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23
5:35
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23
5:35
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23
5:35
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23
5:35
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23
5:35
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/17/23
5:35
CMR
Isopropanol
8.6
8.0
1.4
21
20
3.4
4
6/17/23
5:35
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23
5:35
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23
5:35
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/17/23
5:35
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23
5:35
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23
5:35
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23
5:35
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23
5:35
CMR
Page 11 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-15
Sample ID: 23F1634-04
Sample Matrix: Sub Slab
Sampled: 6/7/2023 08:50
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2794
Canister Size: 1 liter
Flow Controller ID: 4700
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.2
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23
5:35
CMR
Tetrahydrofuran
1.5
2.0
0.33
J 4.6
5.9
0.97
4
6/17/23
5:35
CMR
Toluene
0.34
0.20
0.11
1.3
0.75
0.43
4
6/17/23
5:35
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23
5:35
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23
5:35
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23
5:35
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/17/23
5:35
CMR
Trichlorofluoromethane (Freon 11)
2.5
0.80
0.24
14
4.5
1.3
4
6/17/23
5:35
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/17/23
5:35
CMR
1,2,4-Trimethylbenzene
0.25
0.20
0.088
1.2
0.98
0.43
4
6/17/23
5:35
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23
5:35
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23
5:35
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23
5:35
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/17/23
5:35
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/17/23
5:35
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
93.5
% REC Limits
70-130
6/17/23 5:35
Page 12 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -27.5
Field Sample #: MP-21
Canister ID: 2892
Final Vacuum(in Hg): -5
Sample ID: 23F1634-05
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.7
Sample Matrix: Sub Slab
Flow Controller ID: 4668
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 10:03
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
9.6
8.0
4.8
23
19
11
4
6/17/23 9:07
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 9:07
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 9:07
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 9:07
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 9:07
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23 9:07
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 9:07
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/17/23 9:07
CMR
Carbon Disulfide
ND
2.0
0.18
ND
6.2
0.58
4
6/17/23 9:07
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 9:07
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 9:07
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/17/23 9:07
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23 9:07
CMR
Chloromethane
ND
0.40
0.16
ND
0.83
0.33
4
6/17/23 9:07
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/17/23 9:07
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 9:07
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 9:07
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 9:07
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 9:07
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 9:07
CMR
Dichlorodifluoromethane (Freon 12)
0.29
0.20
0.20
1.4
0.99
0.97
4
6/17/23 9:07
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 9:07
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 9:07
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 9:07
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 9:07
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 9:07
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/17/23 9:07
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 9:07
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 9:07
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 9:07
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23 9:07
CMR
Ethanol
20
8.0
3.5
38
15
6.6
4
6/17/23 9:07
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 9:07
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23 9:07
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 9:07
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23 9:07
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 9:07
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 9:07
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/17/23 9:07
CMR
Isopropanol
14
8.0
1.4
33
20
3.4
4
6/17/23 9:07
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 9:07
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23 9:07
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/17/23 9:07
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23 9:07
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 9:07
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23 9:07
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 9:07
CMR
Page 13 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-21
Sample ID: 23F1634-05
Sample Matrix: Sub Slab
Sampled: 6/7/2023 10:03
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2892
Canister Size: 1 liter
Flow Controller ID: 4668
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -27.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.7
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 9:07
CMR
Tetrahydrofuran
ND
2.0
0.33
ND
5.9
0.97
4
6/17/23 9:07
CMR
Toluene
0.78
0.20
0.11
2.9
0.75
0.43
4
6/17/23 9:07
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 9:07
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23 9:07
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 9:07
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/17/23 9:07
CMR
Trichlorofluoromethane (Freon 11)
2.1
0.80
0.24
12
4.5
1.3
4
6/17/23 9:07
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/17/23 9:07
CMR
1,2,4-Trimethylbenzene
0.14
0.20
0.088
J 0.71
0.98
0.43
4
6/17/23 9:07
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 9:07
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23 9:07
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 9:07
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/17/23 9:07
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/17/23 9:07
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
90.0
% REC Limits
70-130
6/17/23 9:07
Page 14 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28.5
Field Sample #: MP-22
Canister ID: 2833
Final Vacuum(in Hg): -5
Sample ID: 23F1634-06
Canister Size: 1 liter
Receipt Vacuum(in Hg): -4.5
Sample Matrix: Sub Slab
Flow Controller ID: 4587
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 10:15
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
13
8.0
4.8
30
19
11
4
6/17/23 9:48
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 9:48
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 9:48
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 9:48
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 9:48
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23 9:48
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 9:48
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/17/23 9:48
CMR
Carbon Disulfide
0.20
2.0
0.18
J
0.62
6.2
0.58
4
6/17/23 9:48
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 9:48
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 9:48
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/17/23 9:48
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23 9:48
CMR
Chloromethane
ND
0.40
0.16
ND
0.83
0.33
4
6/17/23 9:48
CMR
Cyclohexane
0.15
0.20
0.12
J
0.51
0.69
0.42
4
6/17/23 9:48
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 9:48
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 9:48
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 9:48
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 9:48
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 9:48
CMR
Dichlorodifluoromethane (Freon 12)
0.38
0.20
0.20
1.9
0.99
0.97
4
6/17/23 9:48
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 9:48
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 9:48
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 9:48
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 9:48
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 9:48
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/17/23 9:48
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 9:48
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 9:48
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 9:48
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23 9:48
CMR
Ethanol
110
8.0
3.5
200
15
6.6
4
6/17/23 9:48
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 9:48
CMR
Ethylbenzene
0.15
0.20
0.12
J
0.64
0.87
0.51
4
6/17/23 9:48
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 9:48
CMR
Heptane
0.20
0.20
0.13
J
0.80
0.82
0.52
4
6/17/23 9:48
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 9:48
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 9:48
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/17/23 9:48
CMR
Isopropanol
14
8.0
1.4
35
20
3.4
4
6/17/23 9:48
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 9:48
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23 9:48
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/17/23 9:48
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23 9:48
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 9:48
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23 9:48
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 9:48
CMR
Page 15 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28.5
Field Sample #: MP-22
Canister ID: 2833
Final Vacuum(in Hg): -5
Sample ID: 23F1634-06
Canister Size: 1 liter
Receipt Vacuum(in Hg): -4.5
Sample Matrix: Sub Slab
Flow Controller ID: 4587
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 10:15
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 9:48
CMR
Tetrahydrofuran
0.86
2.0
0.33
J
2.5
5.9
0.97
4
6/17/23 9:48
CMR
Toluene
1.4
0.20
0.11
5.3
0.75
0.43
4
6/17/23 9:48
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 9:48
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23 9:48
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 9:48
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/17/23 9:48
CMR
Trichlorofluoromethane (Freon 11)
0.49
0.80
0.24
J
2.7
4.5
1.3
4
6/17/23 9:48
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/17/23 9:48
CMR
1,2,4-Trimethylbenzene
1.1
0.20
0.088
5.3
0.98
0.43
4
6/17/23 9:48
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 9:48
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23 9:48
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 9:48
CMR
m&p-Xylene
0.50
0.40
0.22
V-06
2.2
1.7
0.97
4
6/17/23 9:48
CMR
o-Xylene
0.22
0.20
0.10
V-06
0.97
0.87
0.44
4
6/17/23 9:48
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 90.8 70-130 6/17/23 9:48
Page 16 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -29
Field Sample #: MP-20
Canister ID: 2647
Final Vacuum(in Hg): -5
Sample ID: 23F1634-07
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.0
Sample Matrix: Sub Slab
Flow Controller ID: 4688
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 10:36
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
7.0
8.0
4.8
J
17
19
11
4
6/17/23 10:29
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 10:29
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 10:29
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 10:29
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 10:29
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23 10:29
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 10:29
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/17/23 10:29
CMR
Carbon Disulfide
0.25
2.0
0.18
J
0.77
6.2
0.58
4
6/17/23 10:29
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 10:29
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 10:29
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/17/23 10:29
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23 10:29
CMR
Chloromethane
0.25
0.40
0.16
J
0.52
0.83
0.33
4
6/17/23 10:29
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/17/23 10:29
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 10:29
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 10:29
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 10:29
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 10:29
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 10:29
CMR
Dichlorodifluoromethane (Freon 12)
0.32
0.20
0.20
1.6
0.99
0.97
4
6/17/23 10:29
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 10:29
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 10:29
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 10:29
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 10:29
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 10:29
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/17/23 10:29
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 10:29
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 10:29
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 10:29
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23 10:29
CMR
Ethanol
46
8.0
3.5
86
15
6.6
4
6/17/23 10:29
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 10:29
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23 10:29
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 10:29
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23 10:29
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 10:29
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 10:29
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/17/23 10:29
CMR
Isopropanol
5.5
8.0
1.4
J
14
20
3.4
4
6/17/23 10:29
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 10:29
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23 10:29
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/17/23 10:29
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23 10:29
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 10:29
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23 10:29
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 10:29
CMR
Page 17 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-20
Sample ID: 23F1634-07
Sample Matrix: Sub Slab
Sampled: 6/7/2023 10:36
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2647
Canister Size: 1 liter
Flow Controller ID: 4688
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.0
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 10:29
CMR
Tetrahydrofuran
1.1
2.0
0.33
J 3.1
5.9
0.97
4
6/17/23 10:29
CMR
Toluene
1.1
0.20
0.11
4.0
0.75
0.43
4
6/17/23 10:29
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 10:29
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23 10:29
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 10:29
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/17/23 10:29
CMR
Trichlorofluoromethane (Freon 11)
0.63
0.80
0.24
J 3.5
4.5
1.3
4
6/17/23 10:29
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/17/23 10:29
CMR
1,2,4-Trimethylbenzene
0.30
0.20
0.088
1.5
0.98
0.43
4
6/17/23 10:29
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 10:29
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23 10:29
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 10:29
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/17/23 10:29
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/17/23 10:29
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
93.1
% REC Limits
70-130
6/17/23 10:29
Page 18 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28.5
Field Sample #: MP-19
Canister ID: 2293
Final Vacuum(in Hg): -5
Sample ID: 23F1634-08
Canister Size: 1 liter
Receipt Vacuum(in Hg): -3.7
Sample Matrix: Sub Slab
Flow Controller ID: 4594
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 10:58
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
16
8.0
4.8
V-06
37
19
11
4
6/17/23 17:29
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 17:29
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 17:29
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 17:29
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 17:29
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23 17:29
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 17:29
CMR
2-Butanone (MEK)
2.6
8.0
2.1
J
7.8
24
6.3
4
6/17/23 17:29
CMR
Carbon Disulfide
1.3
2.0
0.18
J
4.1
6.2
0.58
4
6/17/23 17:29
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 17:29
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 17:29
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/17/23 17:29
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23 17:29
CMR
Chloromethane
0.34
0.40
0.16
J
0.69
0.83
0.33
4
6/17/23 17:29
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/17/23 17:29
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 17:29
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 17:29
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 17:29
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 17:29
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 17:29
CMR
Dichlorodifluoromethane (Freon 12)
0.37
0.20
0.20
1.8
0.99
0.97
4
6/17/23 17:29
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 17:29
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 17:29
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 17:29
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 17:29
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 17:29
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/17/23 17:29
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 17:29
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 17:29
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 17:29
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23 17:29
CMR
Ethanol
63
8.0
3.5
120
15
6.6
4
6/17/23 17:29
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 17:29
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23 17:29
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 17:29
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23 17:29
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 17:29
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 17:29
CMR
2-Hexanone (MBK)
0.15
0.20
0.10
V-06, J
0.61
0.82
0.41
4
6/17/23 17:29
CMR
Isopropanol
5.7
8.0
1.4
J
14
20
3.4
4
6/17/23 17:29
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 17:29
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23 17:29
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/17/23 17:29
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23 17:29
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 17:29
CMR
Styrene
0.28
0.20
0.11
1.2
0.85
0.45
4
6/17/23 17:29
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 17:29
CMR
Page 19 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28.5
Field Sample #: MP-19
Canister ID: 2293
Final Vacuum(in Hg): -5
Sample ID: 23F1634-08
Canister Size: 1 liter
Receipt Vacuum(in Hg): -3.7
Sample Matrix: Sub Slab
Flow Controller ID: 4594
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 10:58
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 17:29
CMR
Tetrahydrofuran
9.9
2.0
0.33
29
5.9
0.97
4
6/17/23 17:29
CMR
Toluene
1.6
0.20
0.11
6.0
0.75
0.43
4
6/17/23 17:29
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 17:29
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23 17:29
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 17:29
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/17/23 17:29
CMR
Trichlorofluoromethane (Freon 11)
0.64
0.80
0.24
J
3.6
4.5
1.3
4
6/17/23 17:29
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/17/23 17:29
CMR
1,2,4-Trimethylbenzene
0.33
0.20
0.088
1.6
0.98
0.43
4
6/17/23 17:29
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 17:29
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23 17:29
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 17:29
CMR
m&p-Xylene
0.29
0.40
0.22
J
1.3
1.7
0.97
4
6/17/23 17:29
CMR
o-Xylene
0.14
0.20
0.10
J
0.59
0.87
0.44
4
6/17/23 17:29
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 93.7 70-130 6/17/23 17:29
Page 20 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -27.5
Field Sample #: MP-18
Canister ID: 2680
Final Vacuum(in Hg): -5
Sample ID: 23F1634-09
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.0
Sample Matrix: Sub Slab
Flow Controller ID: 4593
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 11:14
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
18
8.0
4.8
V-06
44
19
11
4
6/17/23 18:10
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 18:10
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 18:10
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 18:10
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 18:10
CMR
Bromomethane
0.23
0.20
0.13
0.90
0.78
0.52
4
6/17/23 18:10
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 18:10
CMR
2-Butanone (MEK)
2.4
8.0
2.1
J
7.1
24
6.3
4
6/17/23 18:10
CMR
Carbon Disulfide
1.4
2.0
0.18
J
4.4
6.2
0.58
4
6/17/23 18:10
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 18:10
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 18:10
CMR
Chloroethane
0.69
0.20
0.18
1.8
0.53
0.47
4
6/17/23 18:10
CMR
Chloroform
0.37
0.20
0.19
1.8
0.98
0.93
4
6/17/23 18:10
CMR
Chloromethane
3.5
0.40
0.16
7.2
0.83
0.33
4
6/17/23 18:10
CMR
Cyclohexane
0.35
0.20
0.12
1.2
0.69
0.42
4
6/17/23 18:10
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 18:10
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 18:10
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 18:10
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 18:10
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 18:10
CMR
Dichlorodifluoromethane (Freon 12)
0.42
0.20
0.20
2.1
0.99
0.97
4
6/17/23 18:10
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 18:10
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 18:10
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 18:10
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 18:10
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 18:10
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/17/23 18:10
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 18:10
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 18:10
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 18:10
CMR
1,4-Dioxane
0.22
2.0
0.17
J
0.81
7.2
0.60
4
6/17/23 18:10
CMR
Ethanol
37
8.0
3.5
69
15
6.6
4
6/17/23 18:10
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 18:10
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23 18:10
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 18:10
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23 18:10
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 18:10
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 18:10
CMR
2-Hexanone (MBK)
0.29
0.20
0.10
V-06
1.2
0.82
0.41
4
6/17/23 18:10
CMR
Isopropanol
ND
8.0
1.4
ND
20
3.4
4
6/17/23 18:10
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 18:10
CMR
Methylene Chloride
1.4
2.0
0.93
J
5.0
6.9
3.2
4
6/17/23 18:10
CMR
4-Methyl-2-pentanone (MIBK)
0.25
0.20
0.11
V-06
1.0
0.82
0.44
4
6/17/23 18:10
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23 18:10
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 18:10
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23 18:10
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 18:10
CMR
Page 21 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-18
Sample ID: 23F1634-09
Sample Matrix: Sub Slab
Sampled: 6/7/2023 11:14
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2680
Canister Size: 1 liter
Flow Controller ID: 4593
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -27.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.0
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 18:10
CMR
Tetrahydrofuran
8.6
2.0
0.33
25
5.9
0.97
4
6/17/23 18:10
CMR
Toluene
1.5
0.20
0.11
5.6
0.75
0.43
4
6/17/23 18:10
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 18:10
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23 18:10
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 18:10
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/17/23 18:10
CMR
Trichlorofluoromethane (Freon 11)
1.9
0.80
0.24
10
4.5
1.3
4
6/17/23 18:10
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
1.4
0.80
0.22
11
6.1
1.7
4
6/17/23 18:10
CMR
1,2,4-Trimethylbenzene
0.24
0.20
0.088
1.2
0.98
0.43
4
6/17/23 18:10
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 18:10
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23 18:10
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 18:10
CMR
m&p-Xylene
0.25
0.40
0.22
J 1.1
1.7
0.97
4
6/17/23 18:10
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/17/23 18:10
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
93.1
% REC Limits
70-130
6/17/23 18:10
Page 22 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -29
Field Sample #: MP-17
Canister ID: 2311
Final Vacuum(in Hg): -5
Sample ID: 23F1634-10
Canister Size: 1 liter
Receipt Vacuum(in Hg): -3.5
Sample Matrix: Sub Slab
Flow Controller ID: 4703
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 11:27
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
20
8.0
4.8
V-06
48
19
11
4
6/17/23 18:50
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 18:50
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 18:50
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 18:50
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 18:50
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23 18:50
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 18:50
CMR
2-Butanone (MEK)
2.4
8.0
2.1
J
7.2
24
6.3
4
6/17/23 18:50
CMR
Carbon Disulfide
0.44
2.0
0.18
J
1.4
6.2
0.58
4
6/17/23 18:50
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 18:50
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 18:50
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/17/23 18:50
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23 18:50
CMR
Chloromethane
0.39
0.40
0.16
J
0.80
0.83
0.33
4
6/17/23 18:50
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/17/23 18:50
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 18:50
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 18:50
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 18:50
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 18:50
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 18:50
CMR
Dichlorodifluoromethane (Freon 12)
0.37
0.20
0.20
1.8
0.99
0.97
4
6/17/23 18:50
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 18:50
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 18:50
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 18:50
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 18:50
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 18:50
CMR
1,2-Dichloropropene
0.18
0.20
0.11
J
0.83
0.92
0.50
4
6/17/23 18:50
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 18:50
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 18:50
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 18:50
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23 18:50
CMR
Ethanol
26
8.0
3.5
50
15
6.6
4
6/17/23 18:50
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 18:50
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23 18:50
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 18:50
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23 18:50
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 18:50
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 18:50
CMR
2-Hexanone (MBK)
0.12
0.20
0.10
V-06, J
0.49
0.82
0.41
4
6/17/23 18:50
CMR
Isopropanol
ND
8.0
1.4
ND
20
3.4
4
6/17/23 18:50
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 18:50
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23 18:50
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/17/23 18:50
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23 18:50
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 18:50
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23 18:50
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 18:50
CMR
Page 23 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-17
Sample ID: 23F1634-10
Sample Matrix: Sub Slab
Sampled: 6/7/2023 11:27
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2311
Canister Size: 1 liter
Flow Controller ID: 4703
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -3.5
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 18:50
CMR
Tetrahydrofuran
6.2
2.0
0.33
18
5.9
0.97
4
6/17/23 18:50
CMR
Toluene
1.2
0.20
0.11
4.5
0.75
0.43
4
6/17/23 18:50
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 18:50
CMR
1, 1, 1 -Trichloroethane
0.22
0.20
0.16
1.2
1.1
0.86
4
6/17/23 18:50
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 18:50
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/17/23 18:50
CMR
Trichlorofluoromethane (Freon 11)
14
0.80
0.24
80
4.5
1.3
4
6/17/23 18:50
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.27
0.80
0.22
J 2.1
6.1
1.7
4
6/17/23 18:50
CMR
1,2,4-Trimethylbenzene
0.22
0.20
0.088
1.1
0.98
0.43
4
6/17/23 18:50
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 18:50
CMR
Vinyl Acetate
1.2
4.0
1.1
J 4.2
14
3.8
4
6/17/23 18:50
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 18:50
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/17/23 18:50
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/17/23 18:50
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
93.9
% REC Limits
70-130
6/17/23 18:50
Page 24 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28
Field Sample #: MP-16
Canister ID: 2298
Final Vacuum(in Hg): -5
Sample ID: 23F1634-11
Canister Size: 1 liter
Receipt Vacuum(in Hg): -4.9
Sample Matrix: Sub Slab
Flow Controller ID: 4704
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 11:33
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
44
8.0
4.8
V-06
110
19
11
4
6/17/23 19:30
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 19:30
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 19:30
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 19:30
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 19:30
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23 19:30
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 19:30
CMR
2-Butanone (MEK)
11
8.0
2.1
33
24
6.3
4
6/17/23 19:30
CMR
Carbon Disulfide
0.24
2.0
0.18
J
0.76
6.2
0.58
4
6/17/23 19:30
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 19:30
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 19:30
CMR
Chloroethane
0.18
0.20
0.18
J
0.47
0.53
0.47
4
6/17/23 19:30
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23 19:30
CMR
Chloromethane
0.38
0.40
0.16
J
0.79
0.83
0.33
4
6/17/23 19:30
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/17/23 19:30
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 19:30
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 19:30
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 19:30
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 19:30
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 19:30
CMR
Dichlorodifluoromethane (Freon 12)
0.34
0.20
0.20
1.7
0.99
0.97
4
6/17/23 19:30
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 19:30
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 19:30
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 19:30
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 19:30
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 19:30
CMR
1,2-Dichloropropane
0.21
0.20
0.11
0.96
0.92
0.50
4
6/17/23 19:30
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 19:30
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 19:30
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 19:30
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23 19:30
CMR
Ethanol
53
8.0
3.5
100
15
6.6
4
6/17/23 19:30
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 19:30
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23 19:30
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 19:30
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23 19:30
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 19:30
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 19:30
CMR
2-Hexanone (MBK)
0.61
0.20
0.10
V-06
2.5
0.82
0.41
4
6/17/23 19:30
CMR
Isopropanol
ND
8.0
1.4
ND
20
3.4
4
6/17/23 19:30
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 19:30
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23 19:30
CMR
4-Methyl-2-pentanone (MIBK)
0.18
0.20
0.11
V-06, J
0.75
0.82
0.44
4
6/17/23 19:30
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23 19:30
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 19:30
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23 19:30
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 19:30
CMR
Page 25 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28
Field Sample #: MP-16
Canister ID: 2298
Final Vacuum(in Hg): -5
Sample ID: 23F1634-11
Canister Size: 1 liter
Receipt Vacuum(in Hg): -4.9
Sample Matrix: Sub Slab
Flow Controller ID: 4704
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 11:33
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 19:30
CMR
Tetrahydrofuran
9.8
2.0
0.33
29
5.9
0.97
4
6/17/23 19:30
CMR
Toluene
1.9
0.20
0.11
7.3
0.75
0.43
4
6/17/23 19:30
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 19:30
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23 19:30
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 19:30
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/17/23 19:30
CMR
Trichlorofluoromethane (Freon 11)
9.7
0.80
0.24
55
4.5
1.3
4
6/17/23 19:30
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/17/23 19:30
CMR
1,2,4-Trimethylbenzene
0.39
0.20
0.088
1.9
0.98
0.43
4
6/17/23 19:30
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 19:30
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23 19:30
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 19:30
CMR
m&p-Xylene
0.34
0.40
0.22
J 1.5
1.7
0.97
4
6/17/23 19:30
CMR
o-Xylene
0.16
0.20
0.10
J 0.71
0.87
0.44
4
6/17/23 19:30
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 93.6 70-130 6/17/23 19:30
Page 26 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28
Field Sample #: MP-13
Canister ID: 2793
Final Vacuum(in Hg): -5
Sample ID: 23F1634-12
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.8
Sample Matrix: Sub Slab
Flow Controller ID: 4590
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 12:06
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
ND
8.0
4.8
ND
19
11
4
6/17/23 20:11
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 20:11
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 20:11
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 20:11
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 20:11
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23 20:11
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 20:11
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/17/23 20:11
CMR
Carbon Disulfide
0.35
2.0
0.18
J 1.1
6.2
0.58
4
6/17/23 20:11
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 20:11
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 20:11
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/17/23 20:11
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23 20:11
CMR
Chloromethane
0.37
0.40
0.16
J 0.76
0.83
0.33
4
6/17/23 20:11
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/17/23 20:11
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 20:11
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 20:11
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 20:11
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 20:11
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 20:11
CMR
Dichlorodifluoromethane (Freon 12)
0.34
0.20
0.20
1.7
0.99
0.97
4
6/17/23 20:11
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 20:11
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 20:11
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 20:11
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 20:11
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 20:11
CMR
1,2-Dichloropropane
0.25
0.20
0.11
1.2
0.92
0.50
4
6/17/23 20:11
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 20:11
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 20:11
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 20:11
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23 20:11
CMR
Ethanol
43
8.0
3.5
82
15
6.6
4
6/17/23 20:11
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 20:11
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23 20:11
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 20:11
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23 20:11
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 20:11
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 20:11
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/17/23 20:11
CMR
Isopropanol
ND
8.0
1.4
ND
20
3.4
4
6/17/23 20:11
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 20:11
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23 20:11
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/17/23 20:11
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23 20:11
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 20:11
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23 20:11
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 20:11
CMR
Page 27 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-13
Sample ID: 23F1634-12
Sample Matrix: Sub Slab
Sampled: 6/7/2023 12:06
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2793
Canister Size: 1 liter
Flow Controller ID: 4590
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.8
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 20:11
CMR
Tetrahydrofuran
1.5
2.0
0.33
J 4.3
5.9
0.97
4
6/17/23 20:11
CMR
Toluene
1.1
0.20
0.11
4.1
0.75
0.43
4
6/17/23 20:11
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 20:11
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23 20:11
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 20:11
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/17/23 20:11
CMR
Trichlorofluoromethane (Freon 11)
16
0.80
0.24
87
4.5
1.3
4
6/17/23 20:11
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/17/23 20:11
CMR
1,2,4-Trimethylbenzene
0.15
0.20
0.088
J 0.75
0.98
0.43
4
6/17/23 20:11
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 20:11
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23 20:11
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 20:11
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/17/23 20:11
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/17/23 20:11
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
94.5
% REC Limits
70-130
6/17/23 20:11
Page 28 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28.5
Field Sample #: MP-13 DUP
Canister ID: 2245
Final Vacuum(in Hg): -5
Sample ID: 23F1634-13
Canister Size: 1 liter
Receipt Vacuum(in Hg): -4.9
Sample Matrix: Sub Slab
Flow Controller ID: 4567
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 12:17
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
13
8.0
4.8
V-06
30
19
11
4
6/17/23 20:51
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 20:51
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 20:51
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 20:51
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 20:51
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23 20:51
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 20:51
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/17/23 20:51
CMR
Carbon Disulfide
0.36
2.0
0.18
J
1.1
6.2
0.58
4
6/17/23 20:51
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 20:51
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 20:51
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/17/23 20:51
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23 20:51
CMR
Chloromethane
0.39
0.40
0.16
J
0.80
0.83
0.33
4
6/17/23 20:51
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/17/23 20:51
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 20:51
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 20:51
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 20:51
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 20:51
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 20:51
CMR
Dichlorodifluoromethane (Freon 12)
0.40
0.20
0.20
2.0
0.99
0.97
4
6/17/23 20:51
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 20:51
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 20:51
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 20:51
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 20:51
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 20:51
CMR
1,2-Dichloropropane
0.27
0.20
0.11
1.3
0.92
0.50
4
6/17/23 20:51
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 20:51
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 20:51
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 20:51
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23 20:51
CMR
Ethanol
18
8.0
3.5
34
15
6.6
4
6/17/23 20:51
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 20:51
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23 20:51
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 20:51
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23 20:51
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 20:51
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 20:51
CMR
2-Hexanone (MBK)
0.11
0.20
0.10
V-06, J
0.46
0.82
0.41
4
6/17/23 20:51
CMR
Isopropanol
ND
8.0
1.4
ND
20
3.4
4
6/17/23 20:51
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 20:51
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23 20:51
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/17/23 20:51
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23 20:51
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 20:51
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23 20:51
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 20:51
CMR
Page 29 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-13 DUP
Sample ID: 23F1634-13
Sample Matrix: Sub Slab
Sampled: 6/7/2023 12:17
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2245
Canister Size: 1 liter
Flow Controller ID: 4567
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -28.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -4.9
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 20:51
CMR
Tetrahydrofuran
0.80
2.0
0.33
J 2.4
5.9
0.97
4
6/17/23 20:51
CMR
Toluene
0.81
0.20
0.11
3.0
0.75
0.43
4
6/17/23 20:51
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 20:51
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23 20:51
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 20:51
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/17/23 20:51
CMR
Trichlorofluoromethane (Freon 11)
12
0.80
0.24
66
4.5
1.3
4
6/17/23 20:51
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/17/23 20:51
CMR
1,2,4-Trimethylbenzene
0.15
0.20
0.088
J 0.73
0.98
0.43
4
6/17/23 20:51
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 20:51
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23 20:51
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 20:51
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/17/23 20:51
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/17/23 20:51
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
93.2
% REC Limits
70-130
6/17/23 20:51
Page 30 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -27.5
Field Sample #: MP-14
Canister ID: 2650
Final Vacuum(in Hg): -5
Sample ID: 23F1634-14
Canister Size: 1 liter
Receipt Vacuum(in Hg): -4.9
Sample Matrix: Sub Slab
Flow Controller ID: 4589
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 12:24
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
7.5
8.0
4.8
V-06, J
18
19
11
4
6/17/23 21:31
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 21:31
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 21:31
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 21:31
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 21:31
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23 21:31
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 21:31
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/17/23 21:31
CMR
Carbon Disulfide
0.28
2.0
0.18
J
0.88
6.2
0.58
4
6/17/23 21:31
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 21:31
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 21:31
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/17/23 21:31
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23 21:31
CMR
Chloromethane
0.22
0.40
0.16
J
0.45
0.83
0.33
4
6/17/23 21:31
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/17/23 21:31
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 21:31
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 21:31
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 21:31
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 21:31
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 21:31
CMR
Dichlorodifluoromethane (Freon 12)
0.38
0.20
0.20
1.9
0.99
0.97
4
6/17/23 21:31
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 21:31
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 21:31
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 21:31
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 21:31
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 21:31
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/17/23 21:31
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 21:31
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 21:31
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 21:31
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23 21:31
CMR
Ethanol
29
8.0
3.5
55
15
6.6
4
6/17/23 21:31
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 21:31
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23 21:31
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 21:31
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23 21:31
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 21:31
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 21:31
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/17/23 21:31
CMR
Isopropanol
ND
8.0
1.4
ND
20
3.4
4
6/17/23 21:31
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 21:31
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23 21:31
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/17/23 21:31
CMR
Naphthalene
0.21
0.20
0.15
1.1
1.0
0.79
4
6/17/23 21:31
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 21:31
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23 21:31
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 21:31
CMR
Page 31 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-14
Sample ID: 23F1634-14
Sample Matrix: Sub Slab
Sampled: 6/7/2023 12:24
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2650
Canister Size: 1 liter
Flow Controller ID: 4589
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -27.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -4.9
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 21:31
CMR
Tetrahydrofuran
0.76
2.0
0.33
J 2.2
5.9
0.97
4
6/17/23 21:31
CMR
Toluene
1.2
0.20
0.11
4.5
0.75
0.43
4
6/17/23 21:31
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 21:31
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23 21:31
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 21:31
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/17/23 21:31
CMR
Trichlorofluoromethane (Freon 11)
2.0
0.80
0.24
11
4.5
1.3
4
6/17/23 21:31
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/17/23 21:31
CMR
1,2,4-Trimethylbenzene
0.14
0.20
0.088
J 0.67
0.98
0.43
4
6/17/23 21:31
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 21:31
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23 21:31
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 21:31
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/17/23 21:31
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/17/23 21:31
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
93.8
% REC Limits
70-130
6/17/23 21:31
Page 32 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28.5
Field Sample #: MP-12
Canister ID: 2308
Final Vacuum(in Hg): -5
Sample ID: 23F1634-15
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.0
Sample Matrix: Sub Slab
Flow Controller ID: 4568
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 12:36
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RI
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
9.0
8.0
4.8
V-06
21
19
11
4
6/17/23 22:12
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 22:12
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 22:12
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 22:12
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 22:12
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23 22:12
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 22:12
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/17/23 22:12
CMR
Carbon Disulfide
0.24
2.0
0.18
J
0.73
6.2
0.58
4
6/17/23 22:12
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 22:12
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 22:12
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/17/23 22:12
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23 22:12
CMR
Chloromethane
0.68
0.40
0.16
1.4
0.83
0.33
4
6/17/23 22:12
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/17/23 22:12
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 22:12
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 22:12
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 22:12
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 22:12
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 22:12
CMR
Dichlorodifluoromethane (Freon 12)
0.40
0.20
0.20
2.0
0.99
0.97
4
6/17/23 22:12
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 22:12
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 22:12
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 22:12
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 22:12
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 22:12
CMR
1,2-Dichloropropene
ND
0.20
0.11
ND
0.92
0.50
4
6/17/23 22:12
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 22:12
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 22:12
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 22:12
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23 22:12
CMR
Ethanol
29
8.0
3.5
55
15
6.6
4
6/17/23 22:12
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 22:12
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23 22:12
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 22:12
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23 22:12
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 22:12
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 22:12
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/17/23 22:12
CMR
Isopropanol
4.4
8.0
1.4
J
11
20
3.4
4
6/17/23 22:12
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 22:12
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23 22:12
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/17/23 22:12
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23 22:12
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 22:12
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23 22:12
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 22:12
CMR
Page 33 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-12
Sample ID: 23F1634-15
Sample Matrix: Sub Slab
Sampled: 6/7/2023 12:36
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2308
Canister Size: 1 liter
Flow Controller ID: 4568
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -28.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.0
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 22:12
CMR
Tetrahydrofuran
1.4
2.0
0.33
J 4.2
5.9
0.97
4
6/17/23 22:12
CMR
Toluene
0.96
0.20
0.11
3.6
0.75
0.43
4
6/17/23 22:12
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 22:12
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23 22:12
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 22:12
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/17/23 22:12
CMR
Trichlorofluoromethane (Freon 11)
0.59
0.80
0.24
J 3.3
4.5
1.3
4
6/17/23 22:12
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/17/23 22:12
CMR
1,2,4-Trimethylbenzene
0.14
0.20
0.088
J 0.69
0.98
0.43
4
6/17/23 22:12
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 22:12
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23 22:12
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 22:12
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/17/23 22:12
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/17/23 22:12
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
92.7
% REC Limits
70-130
6/17/23 22:12
Page 34 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28
Field Sample #: MP-10
Canister ID: 2854
Final Vacuum(in Hg): -5
Sample ID: 23F1634-16
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.2
Sample Matrix: Sub Slab
Flow Controller ID: 4591
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 13:11
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
ND
8.0
4.8
ND
19
11
4
6/17/23 22:52
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 22:52
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 22:52
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 22:52
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 22:52
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23 22:52
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 22:52
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/17/23 22:52
CMR
Carbon Disulfide
0.25
2.0
0.18
J 0.77
6.2
0.58
4
6/17/23 22:52
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 22:52
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 22:52
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/17/23 22:52
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23 22:52
CMR
Chloromethane
ND
0.40
0.16
ND
0.83
0.33
4
6/17/23 22:52
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/17/23 22:52
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 22:52
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 22:52
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 22:52
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 22:52
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 22:52
CMR
Dichlorodifluoromethane (Freon 12)
0.40
0.20
0.20
2.0
0.99
0.97
4
6/17/23 22:52
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 22:52
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 22:52
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 22:52
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 22:52
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 22:52
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/17/23 22:52
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 22:52
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 22:52
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 22:52
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23 22:52
CMR
Ethanol
12
8.0
3.5
23
15
6.6
4
6/17/23 22:52
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 22:52
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23 22:52
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 22:52
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23 22:52
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 22:52
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 22:52
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/17/23 22:52
CMR
Isopropanol
1.7
8.0
1.4
J 4.2
20
3.4
4
6/17/23 22:52
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 22:52
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23 22:52
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/17/23 22:52
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23 22:52
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 22:52
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23 22:52
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 22:52
CMR
Page 35 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-10
Sample ID: 23F1634-16
Sample Matrix: Sub Slab
Sampled: 6/7/2023 13:11
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2854
Canister Size: 1 liter
Flow Controller ID: 4591
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.2
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 22:52
CMR
Tetrahydrofuran
1.0
2.0
0.33
J 3.1
5.9
0.97
4
6/17/23 22:52
CMR
Toluene
0.84
0.20
0.11
3.2
0.75
0.43
4
6/17/23 22:52
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 22:52
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23 22:52
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 22:52
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/17/23 22:52
CMR
Trichlorofluoromethane (Freon 11)
0.39
0.80
0.24
J 2.2
4.5
1.3
4
6/17/23 22:52
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/17/23 22:52
CMR
1,2,4-Trimethylbenzene
0.12
0.20
0.088
J 0.57
0.98
0.43
4
6/17/23 22:52
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 22:52
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23 22:52
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 22:52
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/17/23 22:52
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/17/23 22:52
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
92.9
% REC Limits
70-130
6/17/23 22:52
Page 36 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -27.5
Field Sample #: MP-11
Canister ID: 2883
Final Vacuum(in Hg): -5
Sample ID: 23F1634-17
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.0
Sample Matrix: Sub Slab
Flow Controller ID: 4571
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 13:04
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
7.9
8.0
4.8
V-06, J
19
19
11
4
6/17/23 23:33
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/17/23 23:33
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/17/23 23:33
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/17/23 23:33
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/17/23 23:33
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/17/23 23:33
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/17/23 23:33
CMR
2-Butanone (MEK)
2.4
8.0
2.1
J
7.0
24
6.3
4
6/17/23 23:33
CMR
Carbon Disulfide
0.23
2.0
0.18
J
0.71
6.2
0.58
4
6/17/23 23:33
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/17/23 23:33
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/17/23 23:33
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/17/23 23:33
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/17/23 23:33
CMR
Chloromethane
0.25
0.40
0.16
J
0.51
0.83
0.33
4
6/17/23 23:33
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/17/23 23:33
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/17/23 23:33
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/17/23 23:33
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/17/23 23:33
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/17/23 23:33
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/17/23 23:33
CMR
Dichlorodifluoromethane (Freon 12)
0.43
0.20
0.20
2.1
0.99
0.97
4
6/17/23 23:33
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/17/23 23:33
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/17/23 23:33
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/17/23 23:33
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/17/23 23:33
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/17/23 23:33
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/17/23 23:33
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/17/23 23:33
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/17/23 23:33
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/17/23 23:33
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/17/23 23:33
CMR
Ethanol
22
8.0
3.5
42
15
6.6
4
6/17/23 23:33
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/17/23 23:33
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/17/23 23:33
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/17/23 23:33
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/17/23 23:33
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/17/23 23:33
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/17/23 23:33
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/17/23 23:33
CMR
Isopropanol
4.1
8.0
1.4
J
10
20
3.4
4
6/17/23 23:33
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/17/23 23:33
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/17/23 23:33
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/17/23 23:33
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/17/23 23:33
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/17/23 23:33
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/17/23 23:33
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/17/23 23:33
CMR
Page 37 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-11
Sample ID: 23F1634-17
Sample Matrix: Sub Slab
Sampled: 6/7/2023 13:04
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2883
Canister Size: 1 liter
Flow Controller ID: 4571
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -27.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.0
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/17/23 23:33
CMR
Tetrahydrofuran
2.0
2.0
0.33
6.0
5.9
0.97
4
6/17/23 23:33
CMR
Toluene
2.2
0.20
0.11
8.3
0.75
0.43
4
6/17/23 23:33
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/17/23 23:33
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/17/23 23:33
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/17/23 23:33
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/17/23 23:33
CMR
Trichlorofluoromethane (Freon 11)
0.36
0.80
0.24
J 2.0
4.5
1.3
4
6/17/23 23:33
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/17/23 23:33
CMR
1,2,4-Trimethylbenzene
0.14
0.20
0.088
J 0.71
0.98
0.43
4
6/17/23 23:33
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/17/23 23:33
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/17/23 23:33
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/17/23 23:33
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/17/23 23:33
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/17/23 23:33
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
94.5
% REC Limits
70-130
6/17/23 23:33
Page 38 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -29.5
Field Sample #: MP-8
Canister ID: 2831
Final Vacuum(in Hg): -5
Sample ID: 23F1634-18
Canister Size: 1 liter
Receipt Vacuum(in Hg): -3.3
Sample Matrix: Sub Slab
Flow Controller ID: 4592
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 13:30
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
ND
8.0
4.8
ND
19
11
4
6/18/23 0:52
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/18/23 0:52
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/18/23 0:52
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/18/23 0:52
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/18/23 0:52
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/18/23 0:52
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/18/23 0:52
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/18/23 0:52
CMR
Carbon Disulfide
0.58
2.0
0.18
J 1.8
6.2
0.58
4
6/18/23 0:52
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/18/23 0:52
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/18/23 0:52
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/18/23 0:52
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/18/23 0:52
CMR
Chloromethane
ND
0.40
0.16
ND
0.83
0.33
4
6/18/23 0:52
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/18/23 0:52
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/18/23 0:52
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/18/23 0:52
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/18/23 0:52
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/18/23 0:52
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/18/23 0:52
CMR
Dichlorodifluoromethane (Freon 12)
0.38
0.20
0.20
1.9
0.99
0.97
4
6/18/23 0:52
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/18/23 0:52
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/18/23 0:52
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/18/23 0:52
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/18/23 0:52
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/18/23 0:52
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/18/23 0:52
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/18/23 0:52
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/18/23 0:52
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/18/23 0:52
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/18/23 0:52
CMR
Ethanol
9.2
8.0
3.5
17
15
6.6
4
6/18/23 0:52
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/18/23 0:52
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/18/23 0:52
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/18/23 0:52
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/18/23 0:52
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/18/23 0:52
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/18/23 0:52
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/18/23 0:52
CMR
Isopropanol
ND
8.0
1.4
ND
20
3.4
4
6/18/23 0:52
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/18/23 0:52
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/18/23 0:52
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/18/23 0:52
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/18/23 0:52
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/18/23 0:52
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/18/23 0:52
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/18/23 0:52
CMR
Page 39 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-8
Sample ID: 23F1634-18
Sample Matrix: Sub Slab
Sampled: 6/7/2023 13:30
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2831
Canister Size: 1 liter
Flow Controller ID: 4592
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -29.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -3.3
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
0.75
0.20
0.15
5.1
1.4
1.0
4
6/18/23 0:52
CMR
Tetrahydrofuran
1.8
2.0
0.33
J 5.4
5.9
0.97
4
6/18/23 0:52
CMR
Toluene
1.9
0.20
0.11
7.0
0.75
0.43
4
6/18/23 0:52
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/18/23 0:52
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/18/23 0:52
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/18/23 0:52
CMR
Trichloroethylene
0.18
0.20
0.13
J 0.95
1.1
0.72
4
6/18/23 0:52
CMR
Trichlorofluoromethane (Freon 11)
8.0
0.80
0.24
45
4.5
1.3
4
6/18/23 0:52
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/18/23 0:52
CMR
1,2,4-Trimethylbenzene
0.44
0.20
0.088
2.2
0.98
0.43
4
6/18/23 0:52
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/18/23 0:52
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/18/23 0:52
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/18/23 0:52
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/18/23 0:52
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/18/23 0:52
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
93.8
% REC Limits
70-130
6/18/23 0:52
Page 40 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28
Field Sample #: MP-9
Canister ID: 2312
Final Vacuum(in Hg): -5
Sample ID: 23F1634-19
Canister Size: 1 liter
Receipt Vacuum(in Hg): -3.9
Sample Matrix: Sub Slab
Flow Controller ID: 4669
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 13:47
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
13
8.0
4.8
V-06
32
19
11
4
6/18/23
1:33
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/18/23
1:33
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/18/23
1:33
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/18/23
1:33
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/18/23
1:33
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/18/23
1:33
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/18/23
1:33
CMR
2-Butanone (MEK)
3.3
8.0
2.1
J
9.8
24
6.3
4
6/18/23
1:33
CMR
Carbon Disulfide
0.38
2.0
0.18
J
1.2
6.2
0.58
4
6/18/23
1:33
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/18/23
1:33
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/18/23
1:33
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/18/23
1:33
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/18/23
1:33
CMR
Chloromethane
0.48
0.40
0.16
1.00
0.83
0.33
4
6/18/23
1:33
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/18/23
1:33
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/18/23
1:33
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/18/23
1:33
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/18/23
1:33
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/18/23
1:33
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/18/23
1:33
CMR
Dichlorodifluoromethane (Freon 12)
0.35
0.20
0.20
1.7
0.99
0.97
4
6/18/23
1:33
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/18/23
1:33
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/18/23
1:33
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/18/23
1:33
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/18/23
1:33
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/18/23
1:33
CMR
1,2-Dichloropropene
ND
0.20
0.11
ND
0.92
0.50
4
6/18/23
1:33
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/18/23
1:33
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/18/23
1:33
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/18/23
1:33
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/18/23
1:33
CMR
Ethanol
17
8.0
3.5
31
15
6.6
4
6/18/23
1:33
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/18/23
1:33
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/18/23
1:33
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/18/23
1:33
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/18/23
1:33
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/18/23
1:33
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/18/23
1:33
CMR
2-Hexanone (MBK)
0.11
0.20
0.10
V-06, J
0.46
0.82
0.41
4
6/18/23
1:33
CMR
Isopropanol
ND
8.0
1.4
ND
20
3.4
4
6/18/23
1:33
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/18/23
1:33
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/18/23
1:33
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/18/23
1:33
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/18/23
1:33
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/18/23
1:33
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/18/23
1:33
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/18/23
1:33
CMR
Page 41 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-9
Sample ID: 23F1634-19
Sample Matrix: Sub Slab
Sampled: 6/7/2023 13:47
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2312
Canister Size: 1 liter
Flow Controller ID: 4669
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -3.9
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/18/23
1:33
CMR
Tetrahydrofuran
2.7
2.0
0.33
7.8
5.9
0.97
4
6/18/23
1:33
CMR
Toluene
2.1
0.20
0.11
8.0
0.75
0.43
4
6/18/23
1:33
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/18/23
1:33
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/18/23
1:33
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/18/23
1:33
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/18/23
1:33
CMR
Trichlorofluoromethane (Freon 11)
4.0
0.80
0.24
23
4.5
1.3
4
6/18/23
1:33
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/18/23
1:33
CMR
1,2,4-Trimethylbenzene
0.29
0.20
0.088
1.4
0.98
0.43
4
6/18/23
1:33
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/18/23
1:33
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/18/23
1:33
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/18/23
1:33
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/18/23
1:33
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/18/23
1:33
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
94.3
% REC Limits
70-130
6/18/23 1:33
Page 42 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28.5
Field Sample #: MP-7
Canister ID: 2834
Final Vacuum(in Hg): -5
Sample ID: 23F1634-20
Canister Size: 1 liter
Receipt Vacuum(in Hg): -6.7
Sample Matrix: Sub Slab
Flow Controller ID: 4670
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 14:06
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
6.5
8.0
4.8
V-06, J
16
19
11
4
6/18/23 2:13
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/18/23 2:13
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/18/23 2:13
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/18/23 2:13
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/18/23 2:13
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/18/23 2:13
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/18/23 2:13
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/18/23 2:13
CMR
Carbon Disulfide
0.26
2.0
0.18
J
0.80
6.2
0.58
4
6/18/23 2:13
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/18/23 2:13
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/18/23 2:13
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/18/23 2:13
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/18/23 2:13
CMR
Chloromethane
ND
0.40
0.16
ND
0.83
0.33
4
6/18/23 2:13
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/18/23 2:13
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/18/23 2:13
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/18/23 2:13
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/18/23 2:13
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/18/23 2:13
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/18/23 2:13
CMR
Dichlorodifluoromethane (Freon 12)
0.36
0.20
0.20
1.8
0.99
0.97
4
6/18/23 2:13
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/18/23 2:13
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/18/23 2:13
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/18/23 2:13
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/18/23 2:13
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/18/23 2:13
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/18/23 2:13
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/18/23 2:13
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/18/23 2:13
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/18/23 2:13
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/18/23 2:13
CMR
Ethanol
17
8.0
3.5
32
15
6.6
4
6/18/23 2:13
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/18/23 2:13
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/18/23 2:13
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/18/23 2:13
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/18/23 2:13
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/18/23 2:13
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/18/23 2:13
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/18/23 2:13
CMR
Isopropanol
ND
8.0
1.4
ND
20
3.4
4
6/18/23 2:13
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/18/23 2:13
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/18/23 2:13
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/18/23 2:13
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/18/23 2:13
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/18/23 2:13
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/18/23 2:13
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/18/23 2:13
CMR
Page 43 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-7
Sample ID: 23F1634-20
Sample Matrix: Sub Slab
Sampled: 6/7/2023 14:06
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2834
Canister Size: 1 liter
Flow Controller ID: 4670
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -28.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -6.7
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qua] Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
0.22
0.20
0.15
1.5
1.4
1.0
4
6/18/23 2:13
CMR
Tetrahydrofuran
1.8
2.0
0.33
J 5.3
5.9
0.97
4
6/18/23 2:13
CMR
Toluene
1.0
0.20
0.11
3.9
0.75
0.43
4
6/18/23 2:13
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/18/23 2:13
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/18/23 2:13
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/18/23 2:13
CMR
Trichloroethylene
0.21
0.20
0.13
1.1
1.1
0.72
4
6/18/23 2:13
CMR
Trichlorofluoromethane (Freon 11)
4.0
0.80
0.24
23
4.5
1.3
4
6/18/23 2:13
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/18/23 2:13
CMR
1,2,4-Trimethylbenzene
0.23
0.20
0.088
1.1
0.98
0.43
4
6/18/23 2:13
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/18/23 2:13
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/18/23 2:13
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/18/23 2:13
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/18/23 2:13
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/18/23 2:13
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
94.5
% REC Limits
70-130
6/18/23 2:13
Page 44 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -27
Field Sample #: MP-6
Canister ID: 2835
Final Vacuum(in Hg): -5
Sample ID: 23F1634-21
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.2
Sample Matrix: Sub Slab
Flow Controller ID: 4582
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 14:14
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
5.5
8.0
4.8
V-06, J
13
19
11
4
6/18/23 2:53
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/18/23 2:53
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/18/23 2:53
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/18/23 2:53
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/18/23 2:53
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/18/23 2:53
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/18/23 2:53
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/18/23 2:53
CMR
Carbon Disulfide
0.37
2.0
0.18
J
1.1
6.2
0.58
4
6/18/23 2:53
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/18/23 2:53
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/18/23 2:53
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/18/23 2:53
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/18/23 2:53
CMR
Chloromethane
ND
0.40
0.16
ND
0.83
0.33
4
6/18/23 2:53
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/18/23 2:53
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/18/23 2:53
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/18/23 2:53
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/18/23 2:53
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/18/23 2:53
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/18/23 2:53
CMR
Dichlorodifluoromethane (Freon 12)
0.39
0.20
0.20
1.9
0.99
0.97
4
6/18/23 2:53
CMR
1,1-Dichloroethane
0.18
0.20
0.17
J
0.71
0.81
0.71
4
6/18/23 2:53
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/18/23 2:53
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/18/23 2:53
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/18/23 2:53
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/18/23 2:53
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/18/23 2:53
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/18/23 2:53
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/18/23 2:53
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/18/23 2:53
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/18/23 2:53
CMR
Ethanol
7.0
8.0
3.5
J
13
15
6.6
4
6/18/23 2:53
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/18/23 2:53
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/18/23 2:53
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/18/23 2:53
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/18/23 2:53
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/18/23 2:53
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/18/23 2:53
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/18/23 2:53
CMR
Isopropanol
ND
8.0
1.4
ND
20
3.4
4
6/18/23 2:53
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/18/23 2:53
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/18/23 2:53
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/18/23 2:53
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/18/23 2:53
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/18/23 2:53
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/18/23 2:53
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/18/23 2:53
CMR
Page 45 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-6
Sample ID: 23F1634-21
Sample Matrix: Sub Slab
Sampled: 6/7/2023 14:14
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2835
Canister Size: 1 liter
Flow Controller ID: 4582
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.2
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
0.32
0.20
0.15
2.1
1.4
1.0
4
6/18/23 2:53
CMR
Tetrahydrofuran
1.7
2.0
0.33
J 4.9
5.9
0.97
4
6/18/23 2:53
CMR
Toluene
0.92
0.20
0.11
3.5
0.75
0.43
4
6/18/23 2:53
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/18/23 2:53
CMR
1, 1, 1 -Trichloroethane
0.26
0.20
0.16
1.4
1.1
0.86
4
6/18/23 2:53
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/18/23 2:53
CMR
Trichloroethylene
0.21
0.20
0.13
1.1
1.1
0.72
4
6/18/23 2:53
CMR
Trichlorofluoromethane (Freon 11)
22
0.80
0.24
130
4.5
1.3
4
6/18/23 2:53
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/18/23 2:53
CMR
1,2,4-Trimethylbenzene
0.11
0.20
0.088
J 0.55
0.98
0.43
4
6/18/23 2:53
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/18/23 2:53
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/18/23 2:53
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/18/23 2:53
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/18/23 2:53
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/18/23 2:53
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
94.0
% REC Limits
70-130
6/18/23 2:53
Page 46 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -27
Field Sample #: MP-5
Canister ID: 2768
Final Vacuum(in Hg): -5
Sample ID: 23F1634-22
Canister Size: 1 liter
Receipt Vacuum(in Hg): -4.8
Sample Matrix: Sub Slab
Flow Controller ID: 4581
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 14:20
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
15
8.0
4.8
V-06
35
19
11
4
6/18/23 3:34
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/18/23 3:34
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/18/23 3:34
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/18/23 3:34
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/18/23 3:34
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/18/23 3:34
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/18/23 3:34
CMR
2-Butanone (MEK)
2.4
8.0
2.1
J
7.0
24
6.3
4
6/18/23 3:34
CMR
Carbon Disulfide
ND
2.0
0.18
ND
6.2
0.58
4
6/18/23 3:34
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/18/23 3:34
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/18/23 3:34
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/18/23 3:34
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/18/23 3:34
CMR
Chloromethane
0.19
0.40
0.16
J
0.40
0.83
0.33
4
6/18/23 3:34
CMR
Cyclohexane
0.58
0.20
0.12
2.0
0.69
0.42
4
6/18/23 3:34
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/18/23 3:34
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/18/23 3:34
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/18/23 3:34
CMR
1,3-Dichlorobenzene
0.22
0.20
0.11
1.3
1.2
0.67
4
6/18/23 3:34
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/18/23 3:34
CMR
Dichlorodifluoromethane (Freon 12)
0.40
0.20
0.20
2.0
0.99
0.97
4
6/18/23 3:34
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/18/23 3:34
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/18/23 3:34
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/18/23 3:34
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/18/23 3:34
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/18/23 3:34
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/18/23 3:34
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/18/23 3:34
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/18/23 3:34
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/18/23 3:34
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/18/23 3:34
CMR
Ethanol
37
8.0
3.5
69
15
6.6
4
6/18/23 3:34
CMR
Ethyl Acetate
1.1
2.0
1.0
J
3.8
7.2
3.6
4
6/18/23 3:34
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/18/23 3:34
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/18/23 3:34
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/18/23 3:34
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/18/23 3:34
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/18/23 3:34
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/18/23 3:34
CMR
Isopropanol
ND
8.0
1.4
ND
20
3.4
4
6/18/23 3:34
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/18/23 3:34
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/18/23 3:34
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/18/23 3:34
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/18/23 3:34
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/18/23 3:34
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/18/23 3:34
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/18/23 3:34
CMR
Page 47 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -27
Field Sample #: MP-5
Canister ID: 2768
Final Vacuum(in Hg): -5
Sample ID: 23F1634-22
Canister Size: 1 liter
Receipt Vacuum(in Hg): -4.8
Sample Matrix: Sub Slab
Flow Controller ID: 4581
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 14:20
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
0.25
0.20
0.15
1.7
1.4
1.0
4
6/18/23 3:34
CMR
Tetrahydrofuran
3.4
2.0
0.33
10
5.9
0.97
4
6/18/23 3:34
CMR
Toluene
1.9
0.20
0.11
7.1
0.75
0.43
4
6/18/23 3:34
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/18/23 3:34
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/18/23 3:34
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/18/23 3:34
CMR
Trichloroethylene
0.28
0.20
0.13
1.5
1.1
0.72
4
6/18/23 3:34
CMR
Trichlorofluoromethane (Freon 11)
1.6
0.80
0.24
9.1
4.5
1.3
4
6/18/23 3:34
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/18/23 3:34
CMR
1,2,4-Trimethylbenzene
0.30
0.20
0.088
1.5
0.98
0.43
4
6/18/23 3:34
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/18/23 3:34
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/18/23 3:34
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/18/23 3:34
CMR
m&p-Xylene
0.24
0.40
0.22
J 1.1
1.7
0.97
4
6/18/23 3:34
CMR
o-Xylene
0.12
0.20
0.10
J 0.50
0.87
0.44
4
6/18/23 3:34
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 94.1 70-130 6/18/23 3:34
Page 48 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28
Field Sample #: MP-4
Canister ID: 2620
Final Vacuum(in Hg): -5
Sample ID: 23F1634-23
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.0
Sample Matrix: Sub Slab
Flow Controller ID: 4602
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 14:45
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
9.5
8.0
4.8
V-06
23
19
11
4
6/18/23 4:14
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/18/23 4:14
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/18/23 4:14
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/18/23 4:14
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/18/23 4:14
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/18/23 4:14
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/18/23 4:14
CMR
2-Butanone (MEK)
3.3
8.0
2.1
J
9.6
24
6.3
4
6/18/23 4:14
CMR
Carbon Disulfide
0.34
2.0
0.18
J
1.0
6.2
0.58
4
6/18/23 4:14
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/18/23 4:14
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/18/23 4:14
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/18/23 4:14
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/18/23 4:14
CMR
Chloromethane
0.18
0.40
0.16
J
0.37
0.83
0.33
4
6/18/23 4:14
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/18/23 4:14
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/18/23 4:14
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/18/23 4:14
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/18/23 4:14
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/18/23 4:14
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/18/23 4:14
CMR
Dichlorodifluoromethane (Freon 12)
0.39
0.20
0.20
1.9
0.99
0.97
4
6/18/23 4:14
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/18/23 4:14
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/18/23 4:14
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/18/23 4:14
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/18/23 4:14
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/18/23 4:14
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/18/23 4:14
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/18/23 4:14
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/18/23 4:14
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/18/23 4:14
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/18/23 4:14
CMR
Ethanol
16
8.0
3.5
31
15
6.6
4
6/18/23 4:14
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/18/23 4:14
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/18/23 4:14
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/18/23 4:14
CMR
Heptane
ND
0.20
0.13
ND
0.82
0.52
4
6/18/23 4:14
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/18/23 4:14
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/18/23 4:14
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/18/23 4:14
CMR
Isopropanol
1.6
8.0
1.4
J
3.9
20
3.4
4
6/18/23 4:14
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/18/23 4:14
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/18/23 4:14
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/18/23 4:14
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/18/23 4:14
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/18/23 4:14
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/18/23 4:14
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/18/23 4:14
CMR
Page 49 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-4
Sample ID: 23F1634-23
Sample Matrix: Sub Slab
Sampled: 6/7/2023 14:45
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2620
Canister Size: 1 liter
Flow Controller ID: 4602
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.0
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/18/23 4:14
CMR
Tetrahydrofuran
3.1
2.0
0.33
9.0
5.9
0.97
4
6/18/23 4:14
CMR
Toluene
2.1
0.20
0.11
7.8
0.75
0.43
4
6/18/23 4:14
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/18/23 4:14
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/18/23 4:14
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/18/23 4:14
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/18/23 4:14
CMR
Trichlorofluoromethane (Freon 11)
0.25
0.80
0.24
J 1.4
4.5
1.3
4
6/18/23 4:14
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/18/23 4:14
CMR
1,2,4-Trimethylbenzene
0.32
0.20
0.088
1.6
0.98
0.43
4
6/18/23 4:14
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/18/23 4:14
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/18/23 4:14
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/18/23 4:14
CMR
m&p-Xylene
ND
0.40
0.22
ND
1.7
0.97
4
6/18/23 4:14
CMR
o-Xylene
ND
0.20
0.10
ND
0.87
0.44
4
6/18/23 4:14
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
96.6
% REC Limits
70-130
6/18/23 4:14
Page 50 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28
Field Sample #: MP-3
Canister ID: 2913
Final Vacuum(in Hg): -5
Sample ID: 23F1634-24
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.0
Sample Matrix: Sub Slab
Flow Controller ID: 4559
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 15:00
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
18
8.0
4.8
V-06
44
19
11
4
6/18/23 4:56
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/18/23 4:56
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/18/23 4:56
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/18/23 4:56
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/18/23 4:56
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/18/23 4:56
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/18/23 4:56
CMR
2-Butanone (MEK)
2.9
8.0
2.1
J
8.7
24
6.3
4
6/18/23 4:56
CMR
Carbon Disulfide
0.45
2.0
0.18
J
1.4
6.2
0.58
4
6/18/23 4:56
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/18/23 4:56
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/18/23 4:56
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/18/23 4:56
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/18/23 4:56
CMR
Chloromethane
0.16
0.40
0.16
J
0.33
0.83
0.33
4
6/18/23 4:56
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/18/23 4:56
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/18/23 4:56
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/18/23 4:56
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/18/23 4:56
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/18/23 4:56
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/18/23 4:56
CMR
Dichlorodifluoromethane (Freon 12)
0.33
0.20
0.20
1.6
0.99
0.97
4
6/18/23 4:56
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/18/23 4:56
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/18/23 4:56
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/18/23 4:56
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/18/23 4:56
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/18/23 4:56
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/18/23 4:56
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/18/23 4:56
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/18/23 4:56
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/18/23 4:56
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/18/23 4:56
CMR
Ethanol
20
8.0
3.5
37
15
6.6
4
6/18/23 4:56
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/18/23 4:56
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/18/23 4:56
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/18/23 4:56
CMR
Heptane
0.13
0.20
0.13
J
0.54
0.82
0.52
4
6/18/23 4:56
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/18/23 4:56
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/18/23 4:56
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/18/23 4:56
CMR
Isopropanol
5.4
8.0
1.4
J
13
20
3.4
4
6/18/23 4:56
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/18/23 4:56
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/18/23 4:56
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/18/23 4:56
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/18/23 4:56
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/18/23 4:56
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/18/23 4:56
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/18/23 4:56
CMR
Page 51 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -28
Field Sample #: MP-3
Canister ID: 2913
Final Vacuum(in Hg): -5
Sample ID: 23F1634-24
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.0
Sample Matrix: Sub Slab
Flow Controller ID: 4559
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 15:00
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/18/23 4:56
CMR
Tetrahydrofuran
4.9
2.0
0.33
15
5.9
0.97
4
6/18/23 4:56
CMR
Toluene
2.8
0.20
0.11
11
0.75
0.43
4
6/18/23 4:56
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/18/23 4:56
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/18/23 4:56
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/18/23 4:56
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/18/23 4:56
CMR
Trichlorofluoromethane (Freon 11)
1.2
0.80
0.24
6.6
4.5
1.3
4
6/18/23 4:56
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/18/23 4:56
CMR
1,2,4-Trimethylbenzene
0.24
0.20
0.088
1.2
0.98
0.43
4
6/18/23 4:56
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/18/23 4:56
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/18/23 4:56
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/18/23 4:56
CMR
m&p-Xylene
0.42
0.40
0.22
1.8
1.7
0.97
4
6/18/23 4:56
CMR
o-Xylene
0.13
0.20
0.10
J 0.56
0.87
0.44
4
6/18/23 4:56
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 95.9 70-130 6/18/23 4:56
Page 52 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -27.5
Field Sample #: MP-2
Canister ID: 2619
Final Vacuum(in Hg): -5
Sample ID: 23F1634-25
Canister Size: 1 liter
Receipt Vacuum(in Hg): -4.7
Sample Matrix: Sub Slab
Flow Controller ID: 4560
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 15:11
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RI
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
9.0
8.0
4.8
V-06
21
19
11
4
6/18/23 6:20
CMR
Benzene
ND
0.20
0.15
ND
0.64
0.48
4
6/18/23 6:20
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/18/23 6:20
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/18/23 6:20
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/18/23 6:20
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/18/23 6:20
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/18/23 6:20
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/18/23 6:20
CMR
Carbon Disulfide
0.20
2.0
0.18
J
0.62
6.2
0.58
4
6/18/23 6:20
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/18/23 6:20
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/18/23 6:20
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/18/23 6:20
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/18/23 6:20
CMR
Chloromethane
0.22
0.40
0.16
J
0.45
0.83
0.33
4
6/18/23 6:20
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/18/23 6:20
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/18/23 6:20
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/18/23 6:20
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/18/23 6:20
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/18/23 6:20
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/18/23 6:20
CMR
Dichlorodifluoromethane (Freon 12)
0.39
0.20
0.20
1.9
0.99
0.97
4
6/18/23 6:20
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/18/23 6:20
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/18/23 6:20
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/18/23 6:20
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/18/23 6:20
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/18/23 6:20
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/18/23 6:20
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/18/23 6:20
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/18/23 6:20
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/18/23 6:20
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/18/23 6:20
CMR
Ethanol
16
8.0
3.5
30
15
6.6
4
6/18/23 6:20
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/18/23 6:20
CMR
Ethylbenzene
ND
0.20
0.12
ND
0.87
0.51
4
6/18/23 6:20
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/18/23 6:20
CMR
Heptane
0.13
0.20
0.13
J
0.52
0.82
0.52
4
6/18/23 6:20
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/18/23 6:20
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/18/23 6:20
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/18/23 6:20
CMR
Isopropanol
ND
8.0
1.4
ND
20
3.4
4
6/18/23 6:20
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/18/23 6:20
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/18/23 6:20
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/18/23 6:20
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/18/23 6:20
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/18/23 6:20
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/18/23 6:20
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/18/23 6:20
CMR
Page 53 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -27.5
Field Sample #: MP-2
Canister ID: 2619
Final Vacuum(in Hg): -5
Sample ID: 23F1634-25
Canister Size: 1 liter
Receipt Vacuum(in Hg): -4.7
Sample Matrix: Sub Slab
Flow Controller ID: 4560
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 15:11
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
0.54
0.20
0.15
3.7
1.4
1.0
4
6/18/23 6:20
CMR
Tetrahydrofuran
3.1
2.0
0.33
9.2
5.9
0.97
4
6/18/23 6:20
CMR
Toluene
2.1
0.20
0.11
7.9
0.75
0.43
4
6/18/23 6:20
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/18/23 6:20
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/18/23 6:20
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/18/23 6:20
CMR
Trichloroethylene
0.26
0.20
0.13
1.4
1.1
0.72
4
6/18/23 6:20
CMR
Trichlorofluoromethane (Freon 11)
2.2
0.80
0.24
12
4.5
1.3
4
6/18/23 6:20
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/18/23 6:20
CMR
1,2,4-Trimethylbenzene
0.17
0.20
0.088
J 0.85
0.98
0.43
4
6/18/23 6:20
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/18/23 6:20
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/18/23 6:20
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/18/23 6:20
CMR
m&p-Xylene
0.51
0.40
0.22
2.2
1.7
0.97
4
6/18/23 6:20
CMR
o-Xylene
0.14
0.20
0.10
J 0.63
0.87
0.44
4
6/18/23 6:20
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 94.8 70-130 6/18/23 6:20
Page 54 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -27.5
Field Sample #: MP-1
Canister ID: 2520
Final Vacuum(in Hg): -5
Sample ID: 23F1634-26
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.3
Sample Matrix: Sub Slab
Flow Controller ID: 4606
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 15:33
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
10
8.0
4.8
V-06 25
19
11
4
6/18/23 7:02
CMR
Benzene
0.23
0.20
0.15
0.73
0.64
0.48
4
6/18/23 7:02
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/18/23 7:02
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/18/23 7:02
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/18/23 7:02
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/18/23 7:02
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/18/23 7:02
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/18/23 7:02
CMR
Carbon Disulfide
ND
2.0
0.18
ND
6.2
0.58
4
6/18/23 7:02
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/18/23 7:02
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/18/23 7:02
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/18/23 7:02
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/18/23 7:02
CMR
Chloromethane
0.72
0.40
0.16
1.5
0.83
0.33
4
6/18/23 7:02
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/18/23 7:02
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/18/23 7:02
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/18/23 7:02
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/18/23 7:02
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/18/23 7:02
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/18/23 7:02
CMR
Dichlorodifluoromethane (Freon 12)
0.37
0.20
0.20
1.8
0.99
0.97
4
6/18/23 7:02
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/18/23 7:02
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/18/23 7:02
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/18/23 7:02
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/18/23 7:02
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/18/23 7:02
CMR
1,2-Dichloropropene
ND
0.20
0.11
ND
0.92
0.50
4
6/18/23 7:02
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/18/23 7:02
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/18/23 7:02
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/18/23 7:02
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/18/23 7:02
CMR
Ethanol
13
8.0
3.5
25
15
6.6
4
6/18/23 7:02
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/18/23 7:02
CMR
Ethylbenzene
0.22
0.20
0.12
0.96
0.87
0.51
4
6/18/23 7:02
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/18/23 7:02
CMR
Heptane
0.19
0.20
0.13
J 0.79
0.82
0.52
4
6/18/23 7:02
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/18/23 7:02
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/18/23 7:02
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/18/23 7:02
CMR
Isopropanol
ND
8.0
1.4
ND
20
3.4
4
6/18/23 7:02
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/18/23 7:02
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/18/23 7:02
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/18/23 7:02
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/18/23 7:02
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/18/23 7:02
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/18/23 7:02
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/18/23 7:02
CMR
Page 55 of 84

con-testo
A Face Analy6call Laboratory
Project Location: Raleigh, NC
Date Received: 6/13/2023
Field Sample #: MP-1
Sample ID: 23F1634-26
Sample Matrix: Sub Slab
Sampled: 6/7/2023 15:33
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2520
Canister Size: 1 liter
Flow Controller ID: 4606
Sample Type: 10 min
Work Order: 23171634
Initial Vacuum(in Hg): -27.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.3
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/18/23 7:02
CMR
Tetrahydrofuran
1.7
2.0
0.33
J
5.1
5.9
0.97
4
6/18/23 7:02
CMR
Toluene
3.2
0.20
0.11
12
0.75
0.43
4
6/18/23 7:02
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/18/23 7:02
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/18/23 7:02
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/18/23 7:02
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/18/23 7:02
CMR
Trichlorofluoromethane (Freon 11)
0.27
0.80
0.24
J
1.5
4.5
1.3
4
6/18/23 7:02
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/18/23 7:02
CMR
1,2,4-Trimethylbenzene
0.18
0.20
0.088
J
0.88
0.98
0.43
4
6/18/23 7:02
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/18/23 7:02
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/18/23 7:02
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/18/23 7:02
CMR
m&p-Xylene
0.65
0.40
0.22
2.8
1.7
0.97
4
6/18/23 7:02
CMR
o-Xylene
0.20
0.20
0.10
J
0.85
0.87
0.44
4
6/18/23 7:02
CMR
Surrogates
4-Bromofluorobenzene (1)
% Recovery
94.6
% REC Limits
70-130
6/18/23 7:02
Page 56 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -27
Field Sample #: MP-1 DUP
Canister ID: 2531
Final Vacuum(in Hg): -5
Sample ID: 23F1634-27
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.2
Sample Matrix: Sub Slab
Flow Controller ID: 4605
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 15:24
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
14
8.0
4.8
V-06 33
19
11
4
6/18/23 7:44
CMR
Benzene
0.23
0.20
0.15
0.74
0.64
0.48
4
6/18/23 7:44
CMR
Benzyl chloride
ND
0.20
0.18
ND
1.0
0.91
4
6/18/23 7:44
CMR
Bromodichloromethane
ND
0.20
0.14
ND
1.3
0.94
4
6/18/23 7:44
CMR
Bromoform
ND
0.20
0.14
ND
2.1
1.4
4
6/18/23 7:44
CMR
Bromomethane
ND
0.20
0.13
ND
0.78
0.52
4
6/18/23 7:44
CMR
1,3-Butadiene
ND
0.20
0.17
ND
0.44
0.37
4
6/18/23 7:44
CMR
2-Butanone (MEK)
ND
8.0
2.1
ND
24
6.3
4
6/18/23 7:44
CMR
Carbon Disulfide
ND
2.0
0.18
ND
6.2
0.58
4
6/18/23 7:44
CMR
Carbon Tetrachloride
ND
0.20
0.16
ND
1.3
1.0
4
6/18/23 7:44
CMR
Chlorobenzene
ND
0.20
0.13
ND
0.92
0.61
4
6/18/23 7:44
CMR
Chloroethane
ND
0.20
0.18
ND
0.53
0.47
4
6/18/23 7:44
CMR
Chloroform
ND
0.20
0.19
ND
0.98
0.93
4
6/18/23 7:44
CMR
Chloromethane
0.63
0.40
0.16
1.3
0.83
0.33
4
6/18/23 7:44
CMR
Cyclohexane
ND
0.20
0.12
ND
0.69
0.42
4
6/18/23 7:44
CMR
Dibromochloromethane
ND
0.20
0.13
ND
1.7
1.1
4
6/18/23 7:44
CMR
1,2-Dibromoethane (EDB)
ND
0.20
0.12
ND
1.5
0.93
4
6/18/23 7:44
CMR
1,2-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.69
4
6/18/23 7:44
CMR
1,3-Dichlorobenzene
ND
0.20
0.11
ND
1.2
0.67
4
6/18/23 7:44
CMR
1,4-Dichlorobenzene
ND
0.20
0.13
ND
1.2
0.79
4
6/18/23 7:44
CMR
Dichlorodifluoromethane (Freon 12)
0.32
0.20
0.20
1.6
0.99
0.97
4
6/18/23 7:44
CMR
1,1-Dichloroethane
ND
0.20
0.17
ND
0.81
0.71
4
6/18/23 7:44
CMR
1,2-Dichloroethane
ND
0.20
0.18
ND
0.81
0.73
4
6/18/23 7:44
CMR
1,1-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.60
4
6/18/23 7:44
CMR
cis-1,2-Dichloroethylene
ND
0.20
0.15
ND
0.79
0.58
4
6/18/23 7:44
CMR
trans-1,2-Dichloroethylene
ND
0.20
0.16
ND
0.79
0.62
4
6/18/23 7:44
CMR
1,2-Dichloropropane
ND
0.20
0.11
ND
0.92
0.50
4
6/18/23 7:44
CMR
cis- 1,3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.47
4
6/18/23 7:44
CMR
trans- 1, 3 -Dichloropropene
ND
0.20
0.10
ND
0.91
0.46
4
6/18/23 7:44
CMR
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.20
ND
1.4
1.4
4
6/18/23 7:44
CMR
1,4-Dioxane
ND
2.0
0.17
ND
7.2
0.60
4
6/18/23 7:44
CMR
Ethanol
19
8.0
3.5
37
15
6.6
4
6/18/23 7:44
CMR
Ethyl Acetate
ND
2.0
1.0
ND
7.2
3.6
4
6/18/23 7:44
CMR
Ethylbenzene
0.24
0.20
0.12
1.1
0.87
0.51
4
6/18/23 7:44
CMR
4-Ethyltoluene
ND
0.20
0.12
ND
0.98
0.60
4
6/18/23 7:44
CMR
Heptane
0.22
0.20
0.13
0.89
0.82
0.52
4
6/18/23 7:44
CMR
Hexachlorobutadiene
ND
0.20
0.16
ND
2.1
1.8
4
6/18/23 7:44
CMR
Hexane
ND
8.0
1.0
ND
28
3.7
4
6/18/23 7:44
CMR
2-Hexanone (MBK)
ND
0.20
0.10
ND
0.82
0.41
4
6/18/23 7:44
CMR
Isopropanol
1.8
8.0
1.4
J 4.5
20
3.4
4
6/18/23 7:44
CMR
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.15
ND
0.72
0.56
4
6/18/23 7:44
CMR
Methylene Chloride
ND
2.0
0.93
ND
6.9
3.2
4
6/18/23 7:44
CMR
4-Methyl-2-pentanone (MIBK)
ND
0.20
0.11
ND
0.82
0.44
4
6/18/23 7:44
CMR
Naphthalene
ND
0.20
0.15
ND
1.0
0.79
4
6/18/23 7:44
CMR
Propene
ND
8.0
1.8
ND
14
3.0
4
6/18/23 7:44
CMR
Styrene
ND
0.20
0.11
ND
0.85
0.45
4
6/18/23 7:44
CMR
1,1,2,2-Tetrachloroethane
ND
0.20
0.11
ND
1.4
0.74
4
6/18/23 7:44
CMR
Page 57 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Raleigh, NC
Sample Description/Location:
Work Order: 23171634
Date Received: 6/13/2023
Sub Description/Location:
Initial Vacuum(in Hg): -27
Field Sample #: MP-1 DUP
Canister ID: 2531
Final Vacuum(in Hg): -5
Sample ID: 23F1634-27
Canister Size: 1 liter
Receipt Vacuum(in Hg): -5.2
Sample Matrix: Sub Slab
Flow Controller ID: 4605
Flow Controller Type: Fixed -Orifice
Sampled: 6/7/2023 15:24
Sample Type: 10 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
ND
0.20
0.15
ND
1.4
1.0
4
6/18/23 7:44
CMR
Tetrahydrofuran
2.6
2.0
0.33
7.5
5.9
0.97
4
6/18/23 7:44
CMR
Toluene
3.9
0.20
0.11
15
0.75
0.43
4
6/18/23 7:44
CMR
1,2,4-Trichlorobenzene
ND
0.20
0.19
ND
1.5
1.4
4
6/18/23 7:44
CMR
1, 1, 1 -Trichloroethane
ND
0.20
0.16
ND
1.1
0.86
4
6/18/23 7:44
CMR
1,1,2-Trichloroethane
ND
0.20
0.14
ND
1.1
0.77
4
6/18/23 7:44
CMR
Trichloroethylene
ND
0.20
0.13
ND
1.1
0.72
4
6/18/23 7:44
CMR
Trichlorofluoromethane (Freon 11)
0.27
0.80
0.24
J 1.5
4.5
1.3
4
6/18/23 7:44
CMR
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.22
ND
6.1
1.7
4
6/18/23 7:44
CMR
1,2,4-Trimethylbenzene
0.20
0.20
0.088
1.0
0.98
0.43
4
6/18/23 7:44
CMR
1,3,5-Trimethylbenzene
ND
0.20
0.11
ND
0.98
0.52
4
6/18/23 7:44
CMR
Vinyl Acetate
ND
4.0
1.1
ND
14
3.8
4
6/18/23 7:44
CMR
Vinyl Chloride
ND
0.20
0.18
ND
0.51
0.46
4
6/18/23 7:44
CMR
m&p-Xylene
0.81
0.40
0.22
3.5
1.7
0.97
4
6/18/23 7:44
CMR
o-Xylene
0.22
0.20
0.10
0.96
0.87
0.44
4
6/18/23 7:44
CMR
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 95.3 70-130 6/18/23 7:44
Page 58 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
Sample Extraction Data
Prep Method: TO-15 Prep -EPA TO-15
Lab Number [Field ID]
Batch
Pressure
Dilution
Pre
Dilution
Pre-Dil
Initial
mL
Pre-Dil
Final
mL
Default
Injection
mL
Actual
Injection
mL
Date
23F1634-01 [MP-25]
B343675
1.5
1
N/A
1000
400
150
06/16/23
23F1634-02 [MP-24]
B343675
1.5
1
N/A
1000
400
150
06/16/23
23F1634-03 [MP-23]
B343675
1.5
1
N/A
1000
400
150
06/16/23
23F1634-04 [MP-15]
B343675
1.5
1
N/A
1000
400
150
06/16/23
23171634-05 [MP-21]
B343675
1.5
1
N/A
1000
400
150
06/16/23
23F1634-06 [MP-22]
B343675
1.5
1
N/A
1000
400
150
06/16/23
23F1634-07 [MP-20]
B343675
1.5
1
N/A
1000
400
150
06/16/23
Prep Method: TO-15 Prep -EPA TO-15
Lab Number [Field ID]
Batch
Pressure
Dilution
Pre
Dilution
Pre-Dil
Initial
mL
Pre-Dil
Final
mL
Default
Injection
mL
Actual
Injection
mL
Date
23F1634-08 [MP-19]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23F1634-09 [MP-18]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23171634-10 [MP-17]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23171634-11 [MP-16]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23F1634-12 [MP-13]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23F1634-13 [MP-13 DUP]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23F1634-14 [MP-14]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23171634-15 [MP-12]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23171634-16 [MP-10]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23F1634-17 [MP-11]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23F1634-18 [MP-8]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23171634-19 [MP-9]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23F1634-20 [MP-7]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23171634-21 [MP-6]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23F1634-22 [MP-5]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23F1634-23 [MP-4]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23171634-24 [MP-3]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23171634-25 [MP-2]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23F1634-26 [MP-1]
B343702
1.5
1
N/A
1000
400
150
06/17/23
23F1634-27 [MP-1 DUP]
B343702
1.5
1
N/A
1000
400
150
06/17/23
Page 59 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua
Batch B343675 - TO-15 Prep
Blank (B343675-BLK1)
Prepared & Analyzed: 06/16/23
Acetone
ND
1.4
Benzene
ND
0.035
Benzyl chloride
ND
0.035
Bromodichloromethane
ND
0.035
Bromoform
ND
0.035
Bromomethane
ND
0.035
1,3-Butadiene
ND
0.035
2-Butanone (MEK)
ND
1.4
Carbon Disulfide
ND
0.35
Carbon Tetrachloride
ND
0.035
Chlorobenzene
ND
0.035
Chloroethane
ND
0.035
Chloroform
ND
0.035
Chloromethane
ND
0.070
Cyclohexane
ND
0.035
Dibromochloromethane
ND
0.035
1,2-Dibromoethane (EDB)
ND
0.035
1,2-Dichlorobenzene
ND
0.035
1,3-Dichlorobenzene
ND
0.035
114-Dichlorobenzene
ND
0.035
Dichlorodifluoromethane (Freon 12)
ND
0.035
1,1-Dichloroethane
ND
0.035
1,2-Dichloroethane
ND
0.035
1,1-Dichloroethylene
ND
0.035
cis-1,2-Dichloroethylene
ND
0.035
trans-1,2-Dichloroethylene
ND
0.035
1,2-Dichloropropane
ND
0.035
cis- 1,3 -Dichloropropene
ND
0.035
trans- l,3-Dichloropropene
ND
0.035
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
ND
0.035
(Freon 114)
1,4-Dioxane
ND
0.35
Ethanol
ND
1.4
Ethyl Acetate
ND
0.35
Ethylbenzene
ND
0.035
4-Ethyltoluene
ND
0.035
Heptane
ND
0.035
Hexachlorobutadiene
ND
0.035
Hexane
ND
1.4
2-Hexanone (MBK)
ND
0.035
Isopropanol
ND
1.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
Methylene Chloride
ND
0.35
4-Methyl-2-pentanone (MIBK)
ND
0.035
Naphthalene
ND
0.035
Propene
ND
1.4
Styrene
ND
0.035
Page 60 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B343675 - TO-15 Prep
Blank (B343675-BLKI)
Prepared & Analyzed: 06/16/23
1,1,2,2-Tetrachloroethane
ND
0.035
Tetrachloroethylene
ND
0.035
Tetrahydrofuran
ND
0.35
Toluene
ND
0.035
1,2,4-Trichlorobenzene
ND
0.035
1, 1, 1 -Trichloroethane
ND
0.035
1,1,2-Trichloroethane
ND
0.035
Trichloroethylene
ND
0.035
Trichlorofluoromethane (Freon 11)
ND
0.14
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
ND
0.14
113)
1,2,4-Trimethylbenzene
ND
0.035
1,3,5-Trimethylbenzene
ND
0.035
Vinyl Acetate
ND
0.70
Vinyl Chloride
ND
0.035
m&p-Xylene
ND
0.070
o-Xylene
ND
0.035
Surrogate: 4-Bromofluorobenzene (1)
LCS (B343675-BS1)
7.27
8.00 90.9
Prepared & Analyzed: 06/16/23
70-130
Acetone
5.99
5.00
120
70-130
Benzene
5.01
5.00
100
70-130
Benzyl chloride
5.21
5.00
104
70-130 V-20
Bromodichloromethane
4.98
5.00
99.6
70-130
Bromoform
4.89
5.00
97.9
70-130
Bromomethane
5.15
5.00
103
70-130
1,3-Butadiene
5.55
5.00
ill
70-130
2-Butanone (MEK)
4.83
5.00
96.6
70-130
Carbon Disulfide
4.79
5.00
95.9
70-130
Carbon Tetrachloride
5.12
5.00
102
70-130
Chlorobenzene
4.76
5.00
95.1
70-130
Chloroethane
5.66
5.00
113
70-130
Chloroform
4.63
5.00
92.6
70-130
Chloromethane
5.40
5.00
108
70-130
Cyclohexane
5.28
5.00
106
70-130
Dibromochloromethane
4.98
5.00
99.7
70-130
1,2-Dibromoethane (EDB)
4.76
5.00
95.2
70-130
1,2-Dichlorobenzene
4.01
5.00
80.2
70-130
1,3-Dichlorobenzene
4.47
5.00
89.5
70-130
1,4-Dichlorobenzene
4.29
5.00
85.9
70-130
Dichlorodifluoromethane (Freon 12)
5.39
5.00
108
70-130
1,1-Dichloroethane
4.64
5.00
92.8
70-130
1,2-Dichloroethane
4.77
5.00
95.4
70-130
1,1-Dichloroethylene
4.96
5.00
99.3
70-130
cis-1,2-Dichloroethylene
4.56
5.00
91.2
70-130
trans-1,2-Dichloroethylene
4.71
5.00
94.3
70-130
1,2-Dichloropropane
5.02
5.00
100
70-130
Page 61 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B343675 - TO-15 Prep
LCS (B343675-BS1)
Prepared & Analyzed: 06/16/23
cis-1,3-Dichloropropene
4.90
5.00
98.0
70-130
trans-1,3-Dichloropropene
5.20
5.00
104
70-130
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
4.78
5.00
95.5
70-130
(Freon 114)
1,4-Dioxane
4.92
5.00
98.4
70-130
Ethanol
5.23
5.00
105
70-130
Ethyl Acetate
4.41
5.00
88.1
70-130
Ethylbenzene
5.47
5.00
109
70-130
4-Ethyltoluene
5.46
5.00
109
70-130
Heptane
5.85
5.00
117
70-130
Hexachlorobutadiene
3.33
4.25
78.4
70-130
Hexane
4.97
5.00
99.3
70-130
2-Hexanone (MBK)
5.72
5.00
114
70-130
V-O(
Isopropanol
4.61
5.00
92.1
70-130
Methyl tert-Butyl Ether (MTBE)
4.71
5.00
94.3
70-130
Methylene Chloride
4.88
5.00
97.7
70-130
4-Methyl-2-pentanone (MIBK)
5.78
5.00
116
70-130
V-2(
Naphthalene
2.76
3.68
75.1
70-130
Propene
4.58
5.00
91.6
70-130
Styrene
5.33
5.00
107
70-130
1,1,2,2-Tetrachloroethane
4.87
5.00
97.5
70-130
Tetrachloroethylene
4.50
5.00
90.1
70-130
Tetrahydrofuran
4.78
5.00
95.7
70-130
Toluene
5.38
5.00
108
70-130
1,2,4-Trichlorobenzene
2.79
3.90
71.6
70-130
1, 1, 1 -Trichloroethane
4.92
5.00
98.4
70-130
1,1,2-Trichloroethane
5.23
5.00
105
70-130
Trichloroethylene
5.09
5.00
102
70-130
Trichlorofluoromethane (Freon 11)
5.38
5.00
108
70-130
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
4.37
5.00
87.4
70-130
113)
1,2,4-Trimethylbenzene
5.15
5.00
103
70-130
1,3,5-Trimethylbenzene
5.33
5.00
107
70-130
Vinyl Acetate
5.47
5.00
109
70-130
Vinyl Chloride
5.32
5.00
106
70-130
m&p-Xylene
11.7
10.0
117
70-130
V-O(
o-Xylene
5.80
5.00
116
70-130
V-0(
Surrogate: 4-Bromofluorobenzene (1) 7.71 8.00 96.4 70-130
Page 62 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
.nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua
Batch B343702 - TO-15 Prep
Blank (B343702-BLKI)
Prepared & Analyzed: 06/17/23
Acetone
ND
1.4
Benzene
ND
0.035
Benzyl chloride
ND
0.035
Bromodichloromethane
ND
0.035
Bromoform
ND
0.035
Bromomethane
ND
0.035
1,3-Butadiene
ND
0.035
2-Butanone (MEK)
ND
1.4
Carbon Disulfide
ND
0.35
Carbon Tetrachloride
ND
0.035
Chlorobenzene
ND
0.035
Chloroethane
ND
0.035
Chloroform
ND
0.035
Chloromethane
ND
0.070
Cyclohexane
ND
0.035
Dibromochloromethane
ND
0.035
1,2-Dibromoethane (EDB)
ND
0.035
1,2-Dichlorobenzene
ND
0.035
1,3-Dichlorobenzene
ND
0.035
1,4-Dichlorobenzene
ND
0.035
Dichlorodifluoromethane (Freon 12)
ND
0.035
1,1-Dichloroethane
ND
0.035
1,2-Dichloroethane
ND
0.035
1,1-Dichloroethylene
ND
0.035
cis-1,2-Dichloroethylene
ND
0.035
trans-1,2-Dichloroethylene
ND
0.035
1,2-Dichloropropane
ND
0.035
cis- 1,3 -Dichloropropene
ND
0.035
trans- 1, 3 -Dichloropropene
ND
0.035
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
ND
0.035
(Freon 114)
1,4-Dioxane
ND
0.35
Ethanol
ND
1.4
Ethyl Acetate
ND
0.35
Ethylbenzene
ND
0.035
4-Ethyltoluene
ND
0.035
Heptane
ND
0.035
Hexachlorobutadiene
ND
0.035
Hexane
ND
1.4
2-Hexanone (MBK)
ND
0.035
Isopropanol
ND
1.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
Methylene Chloride
ND
0.35
4-Methyl-2-pentanone (MIBK)
ND
0.035
Naphthalene
ND
0.035
Propene
ND
1.4
Styrene
ND
0.035
Page 63 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B343702 - TO-15 Prep
Blank (B343702-BLKI)
Prepared & Analyzed: 06/17/23
1,1,2,2-Tetrachloroethane
ND
0.035
Tetrachloroethylene
ND
0.035
Tetrahydrofuran
ND
0.35
Toluene
ND
0.035
1,2,4-Trichlorobenzene
ND
0.035
1, 1, 1 -Trichloroethane
ND
0.035
1,1,2-Trichloroethane
ND
0.035
Trichloroethylene
ND
0.035
Trichlorofluoromethane (Freon 11)
ND
0.14
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
ND
0.14
113)
1,2,4-Trimethylbenzene
ND
0.035
1,3,5-Trimethylbenzene
ND
0.035
Vinyl Acetate
ND
0.70
Vinyl Chloride
ND
0.035
m&p-Xylene
ND
0.070
o-Xylene
ND
0.035
Surrogate: 4-Bromofluorobenzene (1)
LCS (B343702-BS1)
7.31
8.00 91.4
Prepared & Analyzed: 06/17/23
70-130
Acetone
6.20
5.00
124
70-130 V-06
Benzene
4.94
5.00
98.7
70-130
Benzyl chloride
4.85
5.00
97.0
70-130
Bromodichloromethane
4.96
5.00
99.2
70-130
Bromoform
4.81
5.00
96.2
70-130
Bromomethane
5.02
5.00
100
70-130
1,3-Butadiene
5.39
5.00
108
70-130
2-Butanone (MEK)
4.86
5.00
97.3
70-130
Carbon Disulfide
4.61
5.00
92.2
70-130
Carbon Tetrachloride
5.22
5.00
104
70-130
Chlorobenzene
4.62
5.00
92.4
70-130
Chloroethane
5.45
5.00
109
70-130
Chloroform
4.60
5.00
91.9
70-130
Chloromethane
5.33
5.00
107
70-130
Cyclohexane
5.28
5.00
106
70-130
Dibromochloromethane
4.86
5.00
97.3
70-130
1,2-Dibromoethane (EDB)
4.62
5.00
92.4
70-130
1,2-Dichlorobenzene
3.93
5.00
78.5
70-130
1,3-Dichlorobenzene
4.37
5.00
87.3
70-130
1,4-Dichlorobenzene
4.18
5.00
83.5
70-130
Dichlorodifluoromethane (Freon 12)
5.21
5.00
104
70-130
1,1-Dichloroethane
4.55
5.00
91.0
70-130
1,2-Dichloroethane
4.85
5.00
96.9
70-130
1,1-Dichloroethylene
4.92
5.00
98.4
70-130
cis-1,2-Dichloroethylene
4.57
5.00
91.3
70-130
trans-1,2-Dichloroethylene
4.68
5.00
93.5
70-130
1,2-Dichloropropane
4.95
5.00
99.0
70-130
Page 64 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B343702 - TO-15 Prep
LCS (B343702-BS1)
Prepared & Analyzed: 06/17/23
cis-1,3-Dichloropropene
4.94
5.00
98.8
70-130
trans-1,3-Dichloropropene
5.14
5.00
103
70-130
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
4.67
5.00
93.5
70-130
(Freon 114)
1,4-Dioxane
4.85
5.00
97.0
70-130
Ethanol
5.46
5.00
109
70-130
Ethyl Acetate
4.35
5.00
86.9
70-130
Ethylbenzene
5.33
5.00
107
70-130
4-Ethyltoluene
5.46
5.00
109
70-130
Heptane
5.88
5.00
118
70-130
Hexachlorobutadiene
3.28
4.25
77.2
70-130
Hexane
4.98
5.00
99.5
70-130
2-Hexanone (MBK)
5.60
5.00
112
70-130 V-0(
Isopropanol
4.73
5.00
94.6
70-130
Methyl tert-Butyl Ether (MTBE)
4.64
5.00
92.7
70-130
Methylene Chloride
4.90
5.00
98.0
70-130
4-Methyl-2-pentanone (MIBK)
5.86
5.00
117
70-130 V-0(
Naphthalene
2.68
3.68
72.9
70-130
Propene
4.56
5.00
91.2
70-130
Styrene
5.22
5.00
104
70-130
1,1,2,2-Tetrachloroethane
4.52
5.00
90.4
70-130
Tetrachloroethylene
4.45
5.00
89.0
70-130
Tetrahydrofuran
4.76
5.00
95.2
70-130
Toluene
5.17
5.00
103
70-130
1,2,4-Trichlorobenzene
2.80
3.90
71.8
70-130
1, 1, 1 -Trichloroethane
4.94
5.00
98.7
70-130
1,1,2-Trichloroethane
4.97
5.00
99.3
70-130
Trichloroethylene
5.00
5.00
100
70-130
Trichlorofluoromethane (Freon 11)
5.44
5.00
109
70-130
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
4.31
5.00
86.2
70-130
113)
1,2,4-Trimethylbenzene
5.07
5.00
101
70-130
1,3,5-Trimethylbenzene
5.21
5.00
104
70-130
Vinyl Acetate
5.51
5.00
110
70-130
Vinyl Chloride
5.11
5.00
102
70-130
m&p-Xylene
11.2
10.0
112
70-130
o-Xylene
5.56
5.00
ill
70-130
Surrogate: 4-Bromofluorobenzene (1) 7.64 8.00 95.4 70-130
Page 65 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B343702 - TO-15 Prep
Duplicate (B343702-DUPI)
Source: 23171634-24
Prepared: 06/17/23 Analyzed: 06/18/23
Acetone
18
8.0
42
19
18
2.50
25
V-06
Benzene
ND
0.20
ND
0.64
ND
25
Benzyl chloride
ND
0.20
ND
1.0
ND
25
Bromodichloromethane
ND
0.20
ND
1.3
ND
25
Bromoform
ND
0.20
ND
2.1
ND
25
Bromomethane
ND
0.20
ND
0.78
ND
25
1,3-Butadiene
ND
0.20
ND
0.44
ND
25
2-Butanone (MEK)
2.9
8.0
8.6
24
2.9
0.136
25
J
Carbon Disulfide
0.43
2.0
1.3
6.2
0.45
4.52
25
J
Carbon Tetrachloride
ND
0.20
ND
1.3
ND
25
Chlorobenzene
ND
0.20
ND
0.92
ND
25
Chloroethane
ND
0.20
ND
0.53
ND
25
Chloroform
ND
0.20
ND
0.98
ND
25
Chloromethane
0.20
0.40
0.40
0.83
0.16
20.2
25
J
Cyclohexane
ND
0.20
ND
0.69
ND
25
Dibromochloromethane
ND
0.20
ND
1.7
ND
25
1,2-Dibromoethane (EDB)
ND
0.20
ND
1.5
ND
25
1,2-Dichlorobenzene
ND
0.20
ND
1.2
ND
25
1,3-Dichlorobenzene
ND
0.20
ND
1.2
ND
25
1,4-Dichlorobenzene
ND
0.20
ND
1.2
ND
25
Dichlorodifluoromethane (Freon 12)
0.32
0.20
1.6
0.99
0.33
3.68
25
1,1-Dichloroethane
ND
0.20
ND
0.81
ND
25
1,2-Dichloroethane
ND
0.20
ND
0.81
ND
25
1,1-Dichloroethylene
ND
0.20
ND
0.79
ND
25
cis-1,2-Dichloroethylene
ND
0.20
ND
0.79
ND
25
trans-1,2-Dichloroethylene
ND
0.20
ND
0.79
ND
25
1,2-Dichloropropane
ND
0.20
ND
0.92
ND
25
cis- 1,3 -Dichloropropene
ND
0.20
ND
0.91
ND
25
trans- 1, 3 -Dichloropropene
ND
0.20
ND
0.91
ND
25
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
ND
0.20
ND
1.4
ND
25
(Freon 114)
1,4-Dioxane
ND
2.0
ND
7.2
ND
25
Ethanol
19
8.0
37
15
20
1.69
25
Ethyl Acetate
ND
2.0
ND
7.2
ND
25
Ethylbenzene
0.12
0.20
0.52
0.87
ND
25
J
4-Ethyltoluene
ND
0.20
ND
0.98
ND
25
Heptane
ND
0.20
ND
0.82
0.13
25
Hexachlorobutadiene
ND
0.20
ND
2.1
ND
25
Hexane
ND
8.0
ND
28
ND
25
2-Hexanone (MBK)
ND
0.20
ND
0.82
ND
25
Isopropanol
5.2
8.0
13
20
5.4
4.32
25
J
Methyl tert-Butyl Ether (MTBE)
ND
0.20
ND
0.72
ND
25
Methylene Chloride
ND
2.0
ND
6.9
ND
25
4-Methyl-2-pentanone (MIBK)
ND
0.20
ND
0.82
ND
25
Naphthalene
ND
0.20
ND
1.0
ND
25
Propene
ND
8.0
ND
14
ND
25
Styrene
ND
0.20
ND
0.85
ND
25
Page 66 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
.nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua
Batch B343702 - TO-15 Prep
Duplicate (B343702-DUP1)
Source: 23F1634-24
Prepared: 06/17/23 Analyzed: 06/18/23
1,1,2,2-Tetrachloroethane
ND
0.20
ND
1.4
ND
25
Tetrachloroethylene
ND
0.20
ND
1.4
ND
25
Tetrahydrofuran
4.6
2.0
14
5.9
4.9
6.20
25
Toluene
2.8
0.20
11
0.75
2.8
0.707
25
1,2,4-Trichlorobenzene
ND
0.20
ND
1.5
ND
25
1, 1, 1 -Trichloroethane
ND
0.20
ND
1.1
ND
25
1,1,2-Trichloroethane
ND
0.20
ND
1.1
ND
25
Trichloroethylene
ND
0.20
ND
1.1
ND
25
Trichlorofluoromethane (Freon 11)
1.1
0.80
6.3
4.5
1.2
4.90
25
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
ND
0.80
ND
6.1
ND
25
113)
1,2,4-Trimethylbenzene
0.24
0.20
1.2
0.98
0.24
0.00
25
1,3,5-Trimethylbenzene
ND
0.20
ND
0.98
ND
25
Vinyl Acetate
ND
4.0
ND
14
ND
25
Vinyl Chloride
ND
0.20
ND
0.51
ND
25
m&p-Xylene
0.43
0.40
1.9
1.7
0.42
2.84
25
o-Xylene
0.13
0.20
0.57
0.87
0.13
3.08
25 J
Surrogate: 4-BromoJluorobenzene (1) 7.48 8.00 93.4 70-130
Page 67 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] ` TEL. [phone]
Note: Blank Subtraction is not performed unless otherwise noted
FLAG/QUALIFIER SUMMARY
*
QC result is outside of established limits.
t
Wide recovery limits established for difficult compound.
$
Wide RPD limits established for difficult compound.
#
Data exceeded client recommended or regulatory level
RL
Reporting Limit
MDL
Method Detection Limit
RPD
Relative Percent Difference
LCS
Laboratory Control Sample
LCS Dup
Duplicate Laboratory Control Sample
MS
Matrix Spike Sample
MS Dup
Duplicate Matrix Spike Sample
REC
Recovery
QC
Quality Control
ppbv
Parts per billion volume
EPA
United States Environmental Protection Agency
% REC Percent Recovery
ND Not Detected
N/A Not Applicable
DL Detection Limit
NC Not Calculated
LFB/LCS Lab Fortified Blank/Lab Control Sample
ORP Oxidation -Reduction Potential
wet Not dry weight corrected
% wt Percent weight
Kg Kilogram
g Gram
mg Milligram
µg Microgram
ng Nanogram
L Liter
mL Milliliter
µL Microliter
m3 Cubic Meter
EPH Extractable Petroleum Hydrocarbons
VPH Volatile Petroleum Hydrocarbons
APH Air Petroleum Hydrocarbons
FID Flame Ionization Detector
PID Photo Ionization Detector
Percent recoveries and relative percent differences (RPDs) are determined by the software using values in the
calculation which have not been rounded.
J Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated
concentration (CLP J-Flag).
V-06 Continuing calibration verification (CCV) did not meet method specifications and was biased on the high side for
this compound.
V-20 Continuing calibration verification (CCV) did not meet method specifications and was biased on the high side.
Data validation is not affected since sample result was "not detected" for this compound.
ANALYST
RLF
Rebecca Faust
MEM
Marc E. Mahoney
KMC
Kristen M Couture
CMR
Catherine M. Rouleau
Page 68 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
Initial Cal Check (5087880-ICV1 Lab File ID: G23A142005.D Analyzed: 05/22/23 12:35
Bromochloromethane (1)
1177814
8.294
1177814
8.294
100
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene (1)
2526889
10.069
2526889
10.069
100
60 - 140
0.0000
+/-0.50
Chlorobenzene-d5(1)
2419599
14.434
2419599
14.434
100
60-140
0.0000
+/-0.50
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
Calibration Check (S089310-CCV1) Lab File ID: G23A167005.13 Analyzed: 06/16/23 11:55
Bromochloromethane (1)
1561526
8.288
1561526
8.288
100
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene (1)
2871931
10.062
2871931
10.062
100
60 - 140
0.0000
+/-0.50
Chlorobenzene-d5(1)
2565252
14.427
2565252
14.427
100
60-140
0.0000
+/-0.50
LCS (B343675-BS1 ) Lab File ID: G23AI67007.13 Analyzed: 06/16/23 13:14
Bromochloromethane (1)
1617615
8.294
1561526
8.288
104
60 - 140
0.0060
+/-0.50
1,4-Difluorobenzene (1)
2980402
10.068
2871931
10.062
104
60 - 140
0.0060
+/-0.50
Chlorobenzene-d5(1)
2672135
14.427
2565252
14.427
104
60-140
0.0000
+/-0.50
Blank (B343675-BLK1) Lab File ID: G23AI67012.13 Analyzed: 06/16/23 16:45
Bromochloromethane (1)
1563212
8.295
1561526
8.288
100
60 - 140
0.0070
+/-0.50
1,4-Difluorobenzene(1)
2723760
10.062
2871931
10.062
95
60-140
0.0000
+/-0.50
Chlorobenzene-d5(1)
2418763
14.427
2565252
14.427
94
60-140
0.0000
+/-0.50
MP-25 (23F1634-01 ) Lab File ID: G23AI67028.13 Analyzed: 06/17/23 03:29
Bromochloromethane (1)
1507830
8.295
1561526
8.288
97
60 - 140
0.0070
+/-0.50
1,4-Difluorobenzene(1)
2771903
10.063
2871931
10.062
97
60-140
0.0010
+/-0.50
Chlorobenzene-d5(1)
2675020
14.428
2565252
14.427
104
60-140
0.0010
+/-0.50
MP-24 (23F1634-02 ) Lab File ID: G23A167029.13 Analyzed: 06/17/23 04:11
Bromochloromethane (1)
1488556
8.294
1561526
8.288
95
60 - 140
0.0060
+/-0.50
1,4-Difluorobenzene(1)
2739326
10.062
2871931
10.062
95
60-140
0.0000
+/-0.50
Chlorobenzene-d5(1)
2603614
14.433
2565252
14.427
101
60-140
0.0060
+/-0.50
MP-23 (23F1634-03) Lab File ID: G23A167030.D Analyzed: 06/17/23 04:53
Bromochloromethane (1)
1526013
8.294
1561526
8.288
98
60 - 140
0.0060
+/-0.50
1,4-Difluorobenzene(1)
2765548
10.062
2871931
10.062
96
60-140
0.0000
+/-0.50
Chlorobenzene-d5(1)
2693593
14.427
2565252
14.427
105
60-140
0.0000
+/-0.50
MP-15 (23F1634-04 ) Lab File ID: G23AI67031.1) Analyzed: 06/17/23 05:35
Bromochloromethane (1)
1501867
8.294
1561526
8.288
96
60 - 140
0.0060
+/-0.50
1,4-Difluorobenzene(1)
2759593
10.062
2871931
10.062
96
60-140
0.0000
+/-0.50
Chlorobenzene-d5(1)
2630395
14.433
2565252
14.427
103
60-140
0.0060
+/-0.50
Page 69 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
MP-21 (23F1634-05) Lab File ID: G23A167032.D Analyzed: 06/17/23 09:07
Bromochloromethane (1)
1513128
8.288
1561526
8.288
97
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene (1)
2347877
10.056
2871931
10.062
82
60 - 140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
2259207
14.427
2565252
14.427
88
60-140
0.0000
+/-0.50
MP-22 (23F1634-06 ) Lab File ID: G23AI67033.D Analyzed: 06/17/23 09:48
Bromochloromethane (1)
1468783
8.295
1561526
8.288
94
60 - 140
0.0070
+/-0.50
1,4-Difluorobenzene (1)
2428268
10.062
2871931
10.062
85
60 - 140
0.0000
+/-0.50
Chlorobenzene-d5(1)
2345717
14.427
2565252
14.427
91
60-140
0.0000
+/-0.50
MP-20 (23171634-07) Lab File ID: G23AI67034.D Analyzed: 06/17/23 10:29
Bromochloromethane (1)
1520075
8.288
1561526
8.288
97
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
2567248
10.062
2871931
10.062
89
60-140
0.0000
+/-0.50
Chlorobenzene-d5(1)
2448941
14.427
2565252
14.427
95
60-140
0.0000
+/-0.50
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area %
Limits
RT Diff
RT Diff
Limit
Q
Calibration Check (S089326-CCV1) Lab File ID: G23AI68004.D Analyzed: 06/17/23 13:55
Bromochloromethane (1)
1538701
8.294
1538701
8.294
100
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
2832465
10.068
2832465
10.068
100
60-140
0.0000
+/-0.50
Chlorobenzene-d5(1)
2633080
14.433
2633080
14.433
100
60-140
0.0000
+/-0.50
LCS (B343702-BS1) Lab File ID: G23AI68005.D Analyzed: 06/17/23 14:35
Bromochloromethane (1)
1544327
8.295
1538701
8.294
100
60 - 140
0.0010
+/-0.50
1,4-Difluorobenzene(1)
2831127
10.069
2832465
10.068
100
60-140
0.0010
+/-0.50
Chlorobenzene-d5(1)
2634214
14.428
2633080
14.433
100
60-140
-0.0050
+/-0.50
Blank (B343702-BLK1) Lab File ID: G23AI68008.D Analyzed: 06/17/23 16:49
Bromochloromethane (1)
1445847
8.295
1538701
8.294
94
60 - 140
0.0010
+/-0.50
1,4-Difluorobenzene(1)
2530603
10.063
2832465
10.068
89
60-140
-0.0050
+/-0.50
Chlorobenzene-d5(1)
2292887
14.428
2633080
14.433
87
60-140
-0.0050
+/-0.50
MP-19 (23171634-08 ) Lab File ID: G23A168009.D Analyzed: 06/17/23 17:29
Bromochloromethane (1)
1488165
8.295
1538701
8.294
97
60 - 140
0.0010
+/-0.50
1,4-Difluorobenzene(1)
2646454
10.062
2832465
10.068
93
60-140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
2583074
14.427
2633080
14.433
98
60-140
-0.0060
+/-0.50
MP-18 (23F1634-09) Lab File ID: G23A168010.1) Analyzed: 06/17/23 18:10
Bromochloromethane (1)
1531807
8.294
1538701
8.294
100
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
2750174
10.062
2832465
10.068
97
60-140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
2667077
14.427
2633080
14.433
101
60-140
-0.0060
+/-0.50
Page 70 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
MP-17 (23F1634-10) Lab File ID: G23A168011.D Analyzed: 06/17/23 18:50
Bromochloromethane (1)
1509303
8.295
1538701
8.294
98
60 - 140
0.0010
+/-0.50
1,4-Difluorobenzene (1)
2695465
10.062
2832465
10.068
95
60 - 140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
2610556
14.427
2633080
14.433
99
60-140
-0.0060
+/-0.50
MP-16 (23F1634-11 ) Lab File ID: G23AI68012.D Analyzed: 06/17/23 19:30
Bromochloromethane (1)
1486462
8.294
1538701
8.294
97
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene (1)
2642618
10.062
2832465
10.068
93
60 - 140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
2572357
14.433
2633080
14.433
98
60-140
0.0000
+/-0.50
MP-13 (23F1634-12) Lab File ID: G23AI68013.D Analyzed: 06/17/23 20:11
Bromochloromethane (1)
1488428
8.295
1538701
8.294
97
60 - 140
0.0010
+/-0.50
1,4-Difluorobenzene (1)
2662324
10.062
2832465
10.068
94
60 - 140
-0.0060
+/-0.50
Chlorobenzene-d5 (1)
2521149
14.427
2633080
14.433
96
60 - 140
-0.0060
+/-0.50
MP-13 DUP (23F1634-13) Lab File ID: G23AI68014.D Analyzed: 06/17/23 20:51
Bromochloromethane (1)
1494843
8.294
1538701
8.294
97
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
2703231
10.062
2832465
10.068
95
60-140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
2631893
14.427
2633080
14.433
100
60-140
-0.0060
+/-0.50
MP-14 (23F1634-14) Lab File ID: G23AI68015.D Analyzed: 06/17/23 21:31
Bromochloromethane (1)
1478223
8.288
1538701
8.294
96
60 - 140
-0.0060
+/-0.50
1,4-Difluorobenzene(1)
2647887
10.062
2832465
10.068
93
60-140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
2576232
14.427
2633080
14.433
98
60-140
-0.0060
+/-0.50
MP-12 (23F1634-15) Lab File ID: G23A168016.D Analyzed: 06/17/23 22:12
Bromochloromethane (1)
1482312
8.294
1538701
8.294
96
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
2631763
10.062
2832465
10.068
93
60-140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
2564118
14.427
2633080
14.433
97
60-140
-0.0060
+/-0.50
MP-10 (23F1634-16) Lab File ID: G23A168017.D Analyzed: 06/17/23 22:52
Bromochloromethane (1)
1475821
8.295
1538701
8.294
96
60 - 140
0.0010
+/-0.50
1,4-Difluorobenzene(1)
2652406
10.069
2832465
10.068
94
60-140
0.0010
+/-0.50
Chlorobenzene-d5(1)
2550899
14.434
2633080
14.433
97
60-140
0.0010
+/-0.50
MP-11 (23F1634-17) Lab File ID: G23AI68018.D Analyzed: 06/17/23 23:33
Bromochloromethane (1)
1469985
8.294
1538701
8.294
96
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
2660676
10.062
2832465
10.068
94
60-140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
2552937
14.433
2633080
14.433
97
60-140
0.0000
+/-0.50
MP-8 (23F1634-18) Lab File ID: G23AI68020.D Analyzed: 06/18/23 00:52
Bromochloromethane (1)
1449347
8.295
1538701
8.294
94
60 - 140
0.0010
+/-0.50
1,4-Difluorobenzene (1)
2634390
10.063
2832465
10.068
93
60 - 140
-0.0050
+/-0.50
Chlorobenzene-d5(1)
2544320
14.428
2633080
14.433
97
60-140
-0.0050
+/-0.50
Page 71 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
MP-9 (23F1634-19) Lab File ID: G23A168021.D Analyzed: 06/18/23 01:33
Bromochloromethane (1)
1451458
8.294
1538701
8.294
94
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene (1)
2656124
10.062
2832465
10.068
94
60 - 140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
2567183
14.427
2633080
14.433
97
60-140
-0.0060
+/-0.50
MP-7 (23F1634-20) Lab File ID: G23AI68022.D Analyzed: 06/18/23 02:13
Bromochloromethane (1)
1510407
8.294
1538701
8.294
98
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene (1)
2697445
10.062
2832465
10.068
95
60 - 140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
2595152
14.433
2633080
14.433
99
60-140
0.0000
+/-0.50
MP-6 (23171634-21 ) Lab File ID: G23AI68023.D Analyzed: 06/19/23 02:53
Bromochloromethane (1)
1483896
8.295
1538701
8.294
96
60 - 140
0.0010
+/-0.50
1,4-Difluorobenzene (1)
2685567
10.063
2832465
10.068
95
60 - 140
-0.0050
+/-0.50
Chlorobenzene-d5 (1)
2591508
14.428
2633080
14.433
98
60 - 140
-0.0050
+/-0.50
MP-5 (23171634-22) Lab File ID: G23AI68024.D Analyzed: 06/18/23 03:34
Bromochloromethane (1)
1486778
8.294
1538701
8.294
97
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
2723857
10.062
2832465
10.068
96
60-140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
2627405
14.427
2633080
14.433
100
60-140
-0.0060
+/-0.50
MP-4 (23171634-23 ) Lab File ID: G23AI68025.D Analyzed: 06/18/23 04:14
Bromochloromethane (1)
1516012
8.289
1538701
8.294
99
60 - 140
-0.0050
+/-0.50
1,4-Difluorobenzene(1)
2818073
10.063
2832465
10.068
99
60-140
-0.0050
+/-0.50
Chlorobenzene-d5(1)
2790061
14.428
2633080
14.433
106
60-140
-0.0050
+/-0.50
MP-3 (23171634-24) Lab File ID: G23A168026.D Analyzed: 06/18/23 04:56
Bromochloromethane (1)
1454640
8.294
1538701
8.294
95
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
2689120
10.062
2832465
10.068
95
60-140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
2592447
14.427
2633080
14.433
98
60-140
-0.0060
+/-0.50
Duplicate (B343702-DUP1) Lab File ID: G23A168027.D Analyzed: 06/18/23 05:39
Bromochloromethane (1)
1454232
8.294
1538701
8.294
95
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
2602844
10.062
2832465
10.068
92
60-140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
2511616
14.427
2633080
14.433
95
60-140
-0.0060
+/-0.50
MP-2 (23F1634-25) Lab File ID: G23AI68028.D Analyzed: 06/18/23 06:20
Bromochloromethane (1)
1478967
8.295
1538701
8.294
96
60 - 140
0.0010
+/-0.50
1,4-Difluorobenzene(1)
2642660
10.063
2832465
10.068
93
60-140
-0.0050
+/-0.50
Chlorobenzene-d5(1)
2541181
14.428
2633080
14.433
97
60-140
-0.0050
+/-0.50
MP-1 (23F1634-26) Lab File ID: G23AI68029.D Analyzed: 06/18/23 07:02
Bromochloromethane (1)
1438759
8.294
1538701
8.294
94
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene (1)
2595375
10.062
2832465
10.068
92
60 - 140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
2502533
14.427
2633080
14.433
95
60-140
-0.0060
+/-0.50
Page 72 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
MP-1 DUP (23F1634-27) Lab File ID: G23A168030.D Analyzed: 06/18/23 07:44
Bromochloromethane (1)
1436445
8.288
1538701
8.294
93
60 - 140
-0.0060
+/-0.50
1,4-Difluorobenzene (1)
2608233
10.063
2832465
10.068
92
60 - 140
-0.0050
+/-0.50
Chlorobenzene-d5(1)
2504671
14.428
2633080
14.433
95
60-140
-0.0050
+/-0.50
Page 73 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
5089310-CCV 1
COMPOUND
TYPE.
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
Acetone
A
5.00
6.37
0.842918
1.073387
27.3
30
Benzene
A
5.00
5.33
0.7637592
0.8143444
6.6
30
Benzyl chloride
A
5.00
6.65
0.8073339
1.073187
32.9
30
Bromodichloromethane
A
5.00
5.59
0.6340264
0.7086688
11.8
30
Bromoform
A
5.00
5.48
0.5011309
0.5492282
9.6
30
Bromomethane
A
5.00
5.47
0.4077907
0.4462968
9.4
30
1,3-Butadiene
A
5.00
5.82
0.3749869
0.4367543
16.5
30
2-Butanone (MEK)
A
5.00
5.19
1.356654
1.407894
3.8
30
Carbon Disulfide
A
5.00
4.93
1.498765
1.478648
-1.3
30
Carbon Tetrachloride
A
5.00
5.14
0.539535
0.5544022
2.8
30
Chlorobenzene
A
5.00
5.42
0.7621755
0.8260777
8.4
30
Chloroethane
A
5.00
5.85
0.2218197
0.2596025
17.0
30
Chloroform
A
5.00
4.96
1.217612
1.208112
-0.8
30
Chloromethane
A
5.00
6.04
0.4957722
0.5987384
20.8
30
Cyclohexane
A
5.00
5.49
0.2931361
0.3216451
9.7
30
Dibromochloromethane
A
5.00
5.46
0.6090453
0.6650862
9.2
30
1,2-Dibromoethane (EDB)
A
5.00
5.52
0.5427769
0.5992612
10.4
30
1,2-Dichlorobenzene
A
5.00
5.16
0.5821018
0.600692
3.2
30
1,3-Dichlorobenzene
A
5.00
5.49
0.6255462
0.6873255
9.9
30
1,4-Dichlorobenzene
A
5.00
5.38
0.6180168
0.6648566
7.6
30
Dichlorodifluoromethane (Freon 12)
A
5.00
5.78
1.160248
1.341923
15.7
30
1,1-Dichloroethane
A
5.00
4.91
1.08368
1.064464
-1.8
30
1,2-Dichloroethane
A
5.00
5.23
0.8141384
0.8522084
4.7
30
1,1-Dichloroethylene
A
5.00
5.24
0.9011757
0.9453307
4.9
30
cis-1,2-Dichloroethylene
A
5.00
4.88
0.7729613
0.7544804
-2.4
30
trans-1,2-Dichloroethylene
A
5.00
4.84
0.8219112
0.7959209
-3.2
30
1,2-Dichloropropane
A
5.00
5.44
0.3298189
0.3585958
8.7
30
cis-1,3-Dichloropropene
A
5.00
5.50
0.4150927
0.4567051
10.0
30
trans- l,3-Dichloropropene
A
5.00
5.62
0.3654657
0.4104505
12.3
30
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane (Freon 1
A
5.00
5.51
1.209903
1.332243
10.1
30
1,4-Dioxane
A
5.00
5.84
0.1479759
0.1727512
16.7
30
Ethanol
A
5.00
6.04
0.1349814
0.1630262
20.8
30
Ethyl Acetate
A
5.00
5.26
0.2012452
0.211923
5.3
30
Ethylbenzene
A
5.00
6.15
1.135348
1.395828
22.9
30
4-Ethyltoluene
A
5.00
6.30
1.109241
1.397036
25.9
30
Heptane
A
5.00
6.24
0.2586753
0.3226328
24.7
30
Hexachlorobutadiene
A
5.00
4.90
0.387821
0.3797971
-2.1
30
Hexane
A
5.00
5.15
0.8920789
0.9181613
2.9
30
Page 74 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
5089310-CCV 1
COMPOUND
TYPE
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
2-Hexanone (MBK)
A
5.00
7.42
0.7281651
1.080929
48.4
30
Isopropanol
A
5.00
5.75
1.000317
1.149684
14.9
30
Methyl tert-Butyl Ether (MTBE)
A
5.00
4.85
1.287691
1.248881
-3.0
30
Methylene Chloride
A
5.00
5.34
0.7800979
0.8338582
6.9
30
4-Methyl-2-pentanone (MI13K)
A
5.00
6.76
0.7770459
1.050367
35.2
30
Naphthalene
A
5.00
5.54
0.8550023
0.9476009
10.8
30
Propene
A
5.00
4.70
0.5584422
0.5246499
-6.1
30
Styrene
A
5.00
6.36
0.6029259
0.7664389
27.1
30
1,1,2,2-Tetrachloroethane
A
5.00
6.00
0.8096179
0.9712568
20.0
30
Tetrachloroethylene
A
5.00
4.97
0.4009165
0.3984669
-0.6
30
Tetrahydroforan
A
5.00
5.01
0.1920565
0.192422
0.2
30
Toluene
A
5.00
5.90
0.9093073
1.07351
18.1
30
1,2,4-Trichlorobenzene
A
5.00
5.03
0.3643446
0.366485
0.6
30
1, 1, 1 -Trichloroethane
A
5.00
5.49
0.5599026
0.6145323
9.8
30
1,1,2-Trichloroethane
A
5.00
5.68
0.3528872
0.401119
13.7
30
Trichloroethylene
A
5.00
5.59
0.3564595
0.398619
11.8
30
Trichlorofluoromethane(Freon 11)
A
5.00
5.64
1.116203
1.258081
12.7
30
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 11
A
5.00
4.81
1.151585
1.107158
-3.9
30
1,2,4-Trimethylbenzene
A
5.00
6.41
0.8946339
1.147531
28.3
30
1,3,5-Trimethylbenzene
A
5.00
6.46
0.9396313
1.213394
29.1
30
Vinyl Acetate
A
5.00
5.27
1.381
1.454866
5.3
30
Vinyl Chloride
A
5.00
5.66
0.4775782
0.540457
13.2
30
m&p-Xylene
A
10.0
13.2
0.8677866
1.144744
31.9
30
o-Xylene
A
5.00
6.61
0.8787838
1.161751
32.2
30
# Column to be used to flag Response Factor and %Diff/Drift values with an asterisk
* Values outside of QC limits
Page 75 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
5089326-CCV 1
COMPOUND
TYPE.
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
Acetone
A
5.00
6.79
0.842918
1.143984
35.7
30
Benzene
A
5.00
5.22
0.7637592
0.7965347
4.3
30
Benzyl chloride
A
5.00
6.20
0.8073339
1.000474
23.9
30
Bromodichloromethane
A
5.00
5.52
0.6340264
0.7006477
10.5
30
Bromoform
A
5.00
5.24
0.5011309
0.5253127
4.8
30
Bromomethane
A
5.00
5.38
0.4077907
0.4387171
7.6
30
1,3-Butadiene
A
5.00
5.90
0.3749869
0.4426841
18.1
30
2-Butanone (MEK)
A
5.00
5.32
1.356654
1.443283
6.4
30
Carbon Disulfide
A
5.00
4.71
1.498765
1.410902
-5.9
30
Carbon Tetrachloride
A
5.00
5.00
0.539535
0.5400283
0.09
30
Chlorobenzene
A
5.00
5.16
0.7621755
0.786456
3.2
30
Chloroethane
A
5.00
5.76
0.2218197
0.255456
15.2
30
Chloroform
A
5.00
4.85
1.217612
1.180996
-3.0
30
Chloromethane
A
5.00
5.94
0.4957722
0.5893803
18.9
30
Cyclohexane
A
5.00
5.37
0.2931361
0.3150511
7.5
30
Dibromochloromethane
A
5.00
5.18
0.6090453
0.6315214
3.7
30
1,2-Dibromoethane (EDB)
A
5.00
5.27
0.5427769
0.5722697
5.4
30
1,2-Dichlorobenzene
A
5.00
4.98
0.5821018
0.5803321
-0.3
30
1,3-Dichlorobenzene
A
5.00
5.32
0.6255462
0.6653021
6.4
30
1,4-Dichlorobenzene
A
5.00
5.20
0.6180168
0.6428511
4.0
30
Dichlorodifluoromethane (Freon 12)
A
5.00
5.52
1.160248
1.280612
10.4
30
1,1-Dichloroethane
A
5.00
4.82
1.08368
1.043557
-3.7
30
1,2-Dichloroethane
A
5.00
5.19
0.8141384
0.8444474
3.7
30
1,1-Dichloroethylene
A
5.00
5.22
0.9011757
0.9414143
4.5
30
cis-1,2-Dichloroethylene
A
5.00
4.90
0.7729613
0.7569699
-2.1
30
trans-1,2-Dichloroethylene
A
5.00
4.80
0.8219112
0.7898278
-3.9
30
1,2-Dichloropropane
A
5.00
5.34
0.3298189
0.3524834
6.9
30
cis-1,3-Dichloropropene
A
5.00
5.47
0.4150927
0.4544231
9.5
30
trans- l,3-Dichloropropene
A
5.00
5.62
0.3654657
0.410954
12.4
30
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane (Freon 1
A
5.00
5.32
1.209903
1.286726
6.3
30
1,4-Dioxane
A
5.00
5.62
0.1479759
0.1663879
12.4
30
Ethanol
A
5.00
6.31
0.1349814
0.1704139
26.2
30
Ethyl Acetate
A
5.00
5.24
0.2012452
0.2109988
4.8
30
Ethylbenzene
A
5.00
5.85
1.135348
1.329259
17.1
30
4-Ethyltoluene
A
5.00
6.08
1.109241
1.349695
21.7
30
Heptane
A
5.00
6.04
0.2586753
0.3123075
20.7
30
Hexachlorobutadiene
A
5.00
4.81
0.387821
0.3728124
-3.9
30
Hexane
A
5.00
5.18
0.8920789
0.9233212
3.5
30
Page 76 of 84

con-testo
A Face Analy6call Laboratory
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
5089326-CCV 1
COMPOUND
TYPE
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
2-Hexanone (MBK)
A
5.00
7.12
0.7281651
1.036597
42.4
30
Isopropanol
A
5.00
6.22
1.000317
1.245443
24.5
30
Methyl tert-Butyl Ether (MTBE)
A
5.00
4.86
1.287691
1.250408
-2.9
30
Methylene Chloride
A
5.00
5.26
0.7800979
0.8199311
5.1
30
4-Methyl-2-pentanone (MI13K)
A
5.00
6.80
0.7770459
1.056324
35.9
30
Naphthalene
A
5.00
5.18
0.8550023
0.886491
3.7
30
Propene
A
5.00
4.96
0.5584422
0.5540798
-0.8
30
Styrene
A
5.00
6.25
0.6029259
0.7534416
25.0
30
1,1,2,2-Tetrachloroethane
A
5.00
5.50
0.8096179
0.8898944
9.9
30
Tetrachloroethylene
A
5.00
4.84
0.4009165
0.3878056
-3.3
30
Tetrahydroforan
A
5.00
4.92
0.1920565
0.1891507
-1.5
30
Toluene
A
5.00
5.60
0.9093073
1.018868
12.0
30
1,2,4-Trichlorobenzene
A
5.00
4.87
0.3643446
0.3548805
-2.6
30
1, 1, 1 -Trichloroethane
A
5.00
5.54
0.5599026
0.6205766
10.8
30
1,1,2-Trichloroethane
A
5.00
5.35
0.3528872
0.3776286
7.0
30
Trichloroethylene
A
5.00
5.42
0.3564595
0.3867088
8.5
30
Trichlorofluoromethane(Freon 11)
A
5.00
5.87
1.116203
1.310596
17.4
30
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 11
A
5.00
4.67
1.151585
1.076152
-6.6
30
1,2,4-Trimethylbenzene
A
5.00
6.18
0.8946339
1.10607
23.6
30
1,3,5-Trimethylbenzene
A
5.00
6.18
0.9396313
1.160511
23.5
30
Vinyl Acetate
A
5.00
5.33
1.381
1.471563
6.6
30
Vinyl Chloride
A
5.00
5.53
0.4775782
0.5278801
10.5
30
m&p-Xylene
A
10.0
12.5
0.8677866
1.088249
25.4
30
o-Xylene
A
5.00
6.29
0.8787838
1.105027
25.7
30
# Column to be used to flag Response Factor and %Diff/Drift values with an asterisk
* Values outside of QC limits
Page 77 of 84

con-testo
A Face Analytical' Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ' FAX [phone] " TEL. [phone]
CERTIFICATIONS
Certified Analyses included in this Report
Analyte
EPA TO-15 in Air
Acetone
Benzene
Benzyl chloride
Bromodichloromethane
Bromoform
Bromomethane
1,3-Butadiene
2-Butanone (MEK)
Carbon Disulfide
Carbon Tetrachloride
Chlorobenzene
Chloroethane
Chloroform
Chloromethane
Cyclohexane
Dibromochloromethane
1,2-Dibromoethane (EDB)
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,4-Dichlorobenzene
Dichlorodifluoromethane (Freon 12)
1,1-Dichloroethane
1,2-Dichloroethane
1,1-Dichloroethylene
cis-1,2-Dichloroethylene
trans- l,2-Dichloro ethylene
1,2-Dichloropropane
cis- 1,3 -Dichloropropene
trans- 1, 3 -Dichloropropene
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
1,4-Dioxane
Ethanol
Ethyl Acetate
Ethylbenzene
4-Ethyltoluene
Heptane
Hexachlorobutadiene
Hexane
2-Hexanone (MBK)
Isopropanol
Methyl tart -Butyl Ether (MTBE)
Methylene Chloride
4-Methyl-2-pentanone (MIBK)
Naphthalene
Propene
Styrene
1,1,2,2-Tetrachloroethane
Certifications
AIHA,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NJ,NY,ME,NH,VA
AIHA,NJ,NY,ME,NH,VA
AIHA,FL,NJ,NY,ME,NH
AIHA,NJ,NY,ME,NH,VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA, FL,NJ,NY,ME,NH, VA
AIHA,NJ,NY,ME,NH,VA
AIHA,NY,ME,NH
AIHA,NJ,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NJ,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NY,ME,NH,VA
AIHA,NJ,NY,ME,NH,VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NY,ME,NH
AIHA,NJ,NY,ME,NH,VA
AIHA,NJ,NY,ME,NH,VA
AIHA
AIHA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA
AIHA,NJ,NY,ME,NH,VA
AIHA,NJ,NY,ME,NH,VA
AIHA, FL,NJ,NY,ME,NH, VA
AIHA
AIHA,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH
NY,ME,NH
AIHA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
Page 78 of 84

con-testo
A Face Analytical' Laboratory
39 Spruce Street ` East Longmeadow, MA 01028 ' FAX [phone] " TEL. [phone]
CERTIFICATIONS
Certified Analyses included in this Report
Analyte
EPA TO-15 in Air
Tetrachloroethylene
Tetrahydrofuran
Toluene
1,2,4-Trichlorobenzene
1, 1, 1 -Trichloroethane
1,1,2-Trichloroethane
Trichloroethylene
Trichlorofluoromethane (Freon 11)
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
1,2,4-Trimethylbenzene
1,3,5-Trimethylbenzene
Vinyl Acetate
Vinyl Chloride
m&p-Xylene
o-Xylene
Certifications
AIHA,FL,NJ,NY,ME,NH, VA
AIHA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NJ,NY,ME,NH,VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NY,ME,NH
AIHA,NJ,NY,ME,NH,VA
AIHA,NJ,NY,ME,NH
AIHA,NJ,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA, FL,NJ,NY,ME,NH, VA
AIHA, FL,NJ,NY,ME,NH, VA
Con -Test, a Pace Environmental Laboratory, operates under the following certifications and accreditation:
Code
Description
Number
Expires
AHIA
AIHA-LAP, LLC - ISO 17025:2017
100033
03/l/2024
NY
New York State Department of Health
10899 NELAP
04/1/2024
NH
New Hampshire Environmental Lab
2516 NELAP
02/5/2024
NJ
New Jersey DEP
MA007 NELAP
06/30/2023
FL
Florida Department of Health
E871027 NELAP
06/30/2024
ME
State of Maine
MA00100
06/9/2025
VA
Commonwealth of Virginia
460217
12/14/2023
Page 79 of 84

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Page 82 of 84

6113/23, 2:51 PM Detailed Tracking
Fed Ex* Tracking
Summary Tracking Results
SHIP SHIPPER RECIPIENT CITY,
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APPENDIX F
INDOOR AIR AND SUB -SLAB SOIL GAS
VAPOR INTRUSION RISK CALCULATIONS
Mid Atlantic

Date: January 2023
November 2022 EPA
ID:
** - 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.
All concentrations are in u¢/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/m)
IUR
(ug/m3)-1
muta-
gen
V
Target Indoor
Air Cone. for
Carcinogens @
TCR = 1 E-06
RIC
3
(mg/m)
Target Indoor Air
Cone. for Non -
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
44
V
71-43-2
Benzene
0.76
0.0000078
V
3.6E-01
3.00E-02
6.3E+00
2.1E-06
2.4E-02
74-83-9
Bromomethane
0.1
V
5.00E-03
1.0E+00
1.9E-02
75-15-0
Carbon Disulfide
1.4
V
7.00E-01
1.5E+02
1.9E-03
56-23-5
Carbon Tetrachloride
0.56
0.000006
V
4.7E-01
1.00E-01
2.1E+01
1.2E-06
5.4E-03
67-66-3
Chloroform
0.2
0.000023
V
1.2E-01
9.80E-02
2.0E+01
1.6E-06
2.0E-03
74-87-3
Chloromethane
1.4
V
9.00E-02
1.9E+01
1.5E-02
110-82-7
C clohexane
0.42
V
6.00E+00
1.3E+03
6.7E-05
75-71-8
Dichlorodifluoromethane
1.9
V
1.00E-01
2.1E+01
1.8E-02
107-06-2
Dichloroethane, 1,2-
0.19
0.000026
V
1.1E-01
7.00E-03
1.5E+40
1.5E-06
2.6E-02
78-87-5
Dichloro ro ane, 1,2-
0.097
0.0000037
1 V
7.6E-01
4.00E-03
8.3E-01
1.3E-07
2.3E-02
123-91-1
Dioxane, 1,4-
0.6
0.000005
V
5.6E-01
3.00E-02
6.3E+40
1.1E-06
1.9E-02
141-78-6
Ethyl Acetate
1.7
V
7.00E-02
1.5E+01
2.3E-02
75-00-3
Ethyl Chloride Chloroethane
0.14
V
4.00E+00
8.3E+02
3.4E-05
100-41-4
Eth lbenzene
1.1
0.0000025
V
1.1E+00
LOOE+00
2.1E+42
9.8E-07
1.1E-03
109-99-9
-Tetrah drofitran
15
V
2.00E+00
4.2E+02
7.2E-03
142-82-5
Heptane,N-
0.89
V
4.00E-01
8.3E+01
2.1E-03
110-54-3
Hexane, N-
2
V
7.00E-01
1.5E+02
2.7E-03
591-78-6
Hexanone, 2-
0.41
V
3.00E-02
6.3E+00
1.3E-02
67-63-0
Iso ro anol
8.9
V
2.00E-01
4.2E+O1
4.3E-02
78-93-3
Methyl Ethyl Ketone (2-Butanone)
9.6
V
-
5.00E+00
1.0E+03
1.8E-03
108-10-1
Methyl lsobutyl Ketone 4-meth 1-2- entanone
0.44
V
3.00E+00
6.3E+02
1.4E-04
91-20-3
-Naphthalene
0.36
0.000034
V
8.3E-02
3.00E-03
6.3E-01
4.4E-06
1.2E-01
115-07-1
Propylene
1.7
V
3.00E+00
6.3E+02
5.4E-04
100-42-5
Styrene
0.45
V
1.00E+00
2.1E+02
4.3E-04
127-18-4
Tetrachloroethylene
0.24
0.00000026
V
1.1E+41
4.00E-02
8.3E+00
2.2E-08
5.8E-03
108-88-3
Toluene
15
V
5.00E+00
1.0E+03
2.9E-03
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.53
V
5.00E+00
1.0E+03
1.0E-04
79-01-6
Trichloroeth lene
0.29
0.0000041
M
V
4.8E-01
2.00E-03
4.2E-01
6.1E-07
1.4E-01
75-69-4
Trichlorofluoromethane
1.2
V
95-63-6
Trimetitlbenzene, 1,2,4-
1.6
V
6.00E-02
1.3E+01
2.6E-02
108-67-8
1 Trimeth lbenzene, 1,3,5-
4
V
6
.00E-0
1.E+010
3
61..48EE--002108-
Vinyl
V0-O
E41
Xylene,
3.5
100E-01
2.1E+41
34E-0234
95-47-6
1 X lene, o-
0.96
V
1.00E-01
2.1E+41
9.2E-03
Cumulative: I 1.4E-OS 6.1E-Ol
North Cerdiea DED Risk Calculata

IDEQ Risk Calculator - Vapor Intrusion - Non -Residential Worker Indoor Air r
Version Date: January 2023
Basis: November 2022 EPA RSL Table
ID:
Unit ID: EU 1 (IA-1 to IA-4)Adiusted
** - 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.
All concentrations are in uo/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/m)
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
44
71-43-2
Benzene
0.76
1.6E+00
2.6E+01
4.8E-07
5.8E-03
74-83-9
Bromomethane
0.1
4.4E+00
4.6E-03
75-15-0
Carbon Disulfide
1.4
6.1E+02
4.6E-04
56-23-5
Carbon Tetrachloride
0.56
2.0E+00
8.8E+01
2.7E-07
1.3E-03
67-66-3
Chloroform
0.2
5.3E-01
8.6E+01
3.8E-07
4.7E-04
74-87-3
Chloromethane
1.4
7.9E+01
3.6E-03
110-82-7
C clohexane
0.42
5.3E+03
1.6E-05
75-71-8
Dichlorodifluoromethane
1.9
8.8E+01
4.3E-03
107-06-2
Dichloroethane, 1,2-
0.19
4.7E-01
6.1E+00
4.0E-07
6.2E-03
78-87-5
Dichloro ro ane, 1,2-
0.097
3.3E+00
3.5E+00
2.9E-08
5.5E-03
123-91-1
Dioxane, 1,4-
0.6
2.5E+00
2.6E+01
2.4E-07
4.6E-03
141-78-6
Ethyl Acetate
1.7
6.1E+01
5.5E-03
75-00-3
Ethyl Chloride Chloroethane
0.14
3.5E+03
8.0E-06
100-41-4
Eth lbenzene
1.1
4.9E+00
8.8E+02
2.2E-07
2.5E-04
109-99-9
-Tetrah drofuran
15
1.8E+03
1.7E-03
142-82-5
Heptane, N-
0.89
3.5E+02
5.1E-04
110-54-3
Hexane, N-
2
6.1E+02
6.5E-04
591-78-6
Hexanone, 2-
0.41
2.6E+01
3.1E-03
67-63-0
Iso ro anol
8.9
1.8E+02
1.0E-02
78-93-3
Methyl Ethyl Ketone 2-Butanone
9.6
4.4E+03
4.4E-04
108-10-1
Methyl Isobutyl Ketone 4-meth 1-2- entanone
0.44
2.6E+03
3.3E-05
91-20-3
-Naphthalene
0.36
3.6E-01
2.6E+00
1.0E-06
2.7E-02
115-07-1
Propylene
1.7
2.6E+03
1.3E-04
100-42-5
Styrene
0.45
8.8E+02
1.0E-04
127-184
Tetrachloroethylene
0.24
4.7E+01
3.5E+01
5.1E-09
1.4E-03
108-88-3
Toluene
15
4.4E+03
6.8E-04
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.53
4.4E+03
2.4E-05
79-01-6
Trichloroeth lene
0.29
3.0E+00
1.8E+00
9.7E-08
3.3E-02
75-694
Trichlorofluoromethane
1.2
95-63-6
Trimeth lbenzene, 1,2,4-
1.6
5.3E+01
6.1E-03
108-67-8
Trimeth lbenzene, 1,3,5-
0.4
5.3E+01
1.5E-03
108-054
Vinyl Acetate
3.8
1.8E+02
4.3E-03
108-38-3
X lene, m-
3.5
8.8E+01
8.0E-03
9547-6
X lene, o-
0.96
8.8E+01
2.2E-03
Cumulative: I 3.1E-06 1.4E-01
North Carolina DEQ Risk Calculator

Date: January 2023
November 2022 EPA
ID:
** - 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.
All concentrations are in u¢/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/m)
IUR
(ug/m3)-1
muta-
gen
V
Target Indoor
Air Cone. for
Carcinogens @
TCR = 1 E-06
RIC
3
(mg/m)
Target Indoor Air
Cone. for Non -
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
35
V
71-43-2
Benzene
0.48
0.0000078
V
3.6E-01
3.00E-02
6.3E+00
1.3E-06
1.5E-02
74-83-9
Bromomethane
0.092
V
5.00E-03
1.0E+00
1.8E-02
75-15-0
Carbon Disulfide
1.8
V
7.00E-01
1.5E+02
2.5E-03
56-23-5
Carbon Tetrachloride
0.57
0.000006
V
4.7E-01
1.00E-01
2.1E+01
1.2E-06
5.5E-03
67-66-3
Chloroform
0.51
0.000023
V
1.2E-01
9.80E-02
2.0E+01
4.2E-06
5.0E-03
74-87-3
Chloromethane
1
V
9.00E-02
1.9E+01
1.1E-02
110-82-7
C clohexane
1.3
V
6.00E+00
1.3E+03
2.1E-04
75-71-8
Dichlorodifluoromethane
2
V
1.00E-01
2.1E+01
1.9E-02
107-06-2
Dichloroethane, 1,2-
0.31
0.000026
V
1.1E-01
7.00E-03
1.5E+00
2.9E-06
4.2E-02
78-87-5
Dichloro ro ane, 1,2-
0.17
0.0000037
V
7.6E-01
4.00E-03
8.3E-01
2.2E-07
4.1E-02
141-78-6
Ethyl Acetate
2.3
V
7.00E-02
1.5E+01
3.2E-02
75-00-3
Ethyl Chloride Chloroethane
0.085
V
4.00E+00
8.3E+02
2.0E-05
100-41-4
Eth lbenzene
0.51
0.0000025
V
1.1E+00
1.00E+00
2.1E+42
4.5E-07
4.9E-04
109-99-9
-Tetrah drofuran
10
V
2.00E+00
4.2E+02
4.8E-03
142-82-5
Heptane, N-
0.52
V
4.00E-01
8.3E+01
1.2E-03
110-54-3
Hexane, N-
2.1
V
7.00E-01
1.5E+02
2.9E-03
591-78-6
Hexanone, 2-
0.46
V
3.00E-02
6.3E+00
1.5E-02
67-63-0
Iso ro anol
3.4
V
2.00E-01
4.2E+O1
1.6E-02
78-93-3
Methyl Ethyl Ketone (2-Butanone)
9.8
V
-
5.00E+00
1.0E+03
1.9E-03
108-10-1
Methyl lsobut ( Ketone 4-meth 1-2- entanone
0.44
V
3.00E+00
6.3E+02
1.4E-04
91-20-3
-Naphthalene
0.61
0.000034
V
8.3E-02
3.00E-03
6.3E-01
7.4E-06
1.9E-01
115-07-1
Propylene
2.2
V
3.00E+00
6.3E+02
7.0E-04
100-42-5
Styrene
0.45
V
1.00E+00
2.1E+02
4.3E-04
127-18-4
Tetrachloroethylene
0.3
0.00000026
V
1.1E+01
4.00E-02
8.3E+00
2.8E-08
7.2E-03
108-88-3
Toluene
8
V
5.00E+00
1.0E+03
1.5E-03
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.59
V
5.00E+00
1.0E+03
1.1E-04
75-69-4
Trichlorofluoromethane
1.4
V
95-63-6
Trimeth lbenzene, 1,2,4-
2.2
V
6.00E-02
1.3E+01
3.5E-02
108-67-8
Trimeth lbenzene, 1,3,5-
0.52
V
6.00E-02
1.3E+01
8.3E-03
108-05-4
Vinyl Acetate
3.8
V
2.00E-01
4.2E+01
1.8E-02
108-38-3
X lene, in-
1.1
I
1.00E-01
2.1E+01
1.1E-02
95-47-6
1 X lene, o-
0.5
1
1.00E-01
2.1E+01
4.8E-03
Cumulative: I 1.8E-OS 5.2E-Ol
North Cerdha DED Risk Calculata

IDEQ Risk Calculator - Vapor Intrusion - Non -Residential Worker Indoor Air r
Version Date: January 2023
Basis: November 2022 EPA RSL Table
ID:
Unit ID: EU 2 (IA-5 to IA-9)Adiusted
** - 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.
All concentrations are in no/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/ru)
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
35
71-43-2
Benzene
0.48
1.6E+00
2.6E+01
3.1E-07
3.7E-03
74-83-9
Bromomethane
0.092
4.4E+00
4.2E-03
75-15-0
Carbon Disulfide
1.8
6.1E+02
5.9E-04
56-23-5
Carbon Tetrachloride
0.57
2.0E+00
8.8E+01
2.8E-07
1.3E-03
67-66-3
Chloroform
0.51
5.3E-01
8.6E+01
9.6E-07
1.2E-03
74-87-3
Chloromethane
1
7.9E+01
2.5E-03
110-82-7
C clohexane
1.3
5.3E+03
4.9E-05
75-71-8
Dichlorodifluoromethane
2
8.8E+01
4.6E-03
107-06-2
Dichloroethane, 1,2-
0.31
4.7E-01
6.1E+00
6.6E-07
1.0E-02
78-87-5
Dichloro ro ane, 1,2-
0.17
3.3E+00
3.5E+00
5.1E-08
9.7E-03
141-78-6
Ethyl Acetate
2.3
6.1E+01
7.5E-03
75-00-3
Ethyl Chloride Chloroethane
0.085
3.5E+03
4.9E-06
100-41-4
Eth lbenzene
0.51
4.9E+00
8.8E+02
1.0E-07
1.2E-04
109-99-9
-Tetrah drofuran
10
1.8E+03
1.1E-03
142-82-5
Heptane, N-
0.52
3.5E+02
3.0E-04
110-54-3
Hexane, N-
2.1
6.1E+02
6.8E-04
591-78-6
Hexanone, 2-
0.46
2.6E+01
3.5E-03
67-63-0
Iso ro anol
3.4
1.8E+02
3.9E-03
78-93-3
Methyl Ethyl Ketone 2-Butanone
9.8
4.4E+03
4.5E-04
108-10-1
Methyl Isobutyl Ketone 4-meth 1-2- entanone
0.44
2.6E+03
3.3E-05
91-20-3
-Naphthalene
0.61
3.6E-01
2.6E+00
1.7E-06
4.6E-02
115-07-1
Propylene
2.2
2.6E+03
1.7E-04
100-42-5
Styrene
0.45
8.8E+02
1.0E-04
127-184
Tetrachloroethylene
0.3
4.7E+01
3.5E+01
6.4E-09
1.7E-03
108-88-3
Toluene
8
4.4E+03
3.7E-04
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.59
4.4E+03
2.7E-05
75-694
Trichlorofluoromethane
1.4
95-63-6
Trimeth lbenzene, 1,2,4-
2.2
5.3E+01
8.4E-03
108-67-8
Trimeth lbenzene, 1,3,5-
0.52
5.3E+01
2.0E-03
108-054
Vinyl Acetate
3.8
1.8E+02
4.3E-03
108-38-3
1 X lene, m-
1.1
8.8E+01
2.5E-03
9547-6
1 X lene, o-
0.5
8.8E+01
1.1E-03
Cumulative: I 4.1E-06 1.2E-0 l
North Carolina DEQ Risk Calculator

Date: January 2023
November 2022 EPA
ID:
** - 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.
All concentrations are in u¢/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/m)
IUR
(ug/m3)-1
muta-
gen
V
Target Indoor
Air Cone. for
Carcinogens @
TCR = 1 E-06
RIC
3
(mg/m)
Target Indoor Air
Cone. for Non -
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
30
V
71-43-2
Benzene
0.48
0.0000078
V
3.6E-01
3.00E-02
6.3E+00
1.3E-06
1.5E-02
75-15-0
Carbon Disulfide
1.1
V
7.00E-01
1.5E+02
1.5E-03
56-23-5
Carbon Tetrachloride
0.52
0.000006
V
4.7E-01
1.00E-01
2.1E+01
1.1E-06
5.0E-03
67-66-3
Chloroform
0.27
0.000023
V
1.2E-01
9.80E-02
2.0E+01
2.2E-06
2.6E-03
74-87-3
Chloromethane
1.2
V
9.00E-02
1.9E+01
1.3E-02
110-82-7
C clohexane
0.42
V
6.00E+00
1.3E+03
6.7E-05
75-71-8
Dichlorodifluoromethane
2.1
V
1.00E-01
2.1E+01
2.0E-02
107-06-2
Dichloroethane, 1,2-
0.27
0.000026
V
1.1E-01
7.00E-03
1.5E+40
2.5E-06
3.7E-02
78-87-5
Dichloro ro ane, 1,2-
0.3
0.0000037
V
7.6E-01
4.00E-03
8.3E-01
4.0E-07
7.2E-02
123-91-1
Dioxane, 1,4-
0.6
0.000005
V
5.6E-01
3.00E-02
6.3E+40
1.1E-06
1.9E-02
141-78-6
Ethyl Acetate
2.3
V
7.00E-02
1.5E+01
3.2E-02
75-00-3
Ethyl Chloride Chloroethane
0.47
V
4.00E+00
8.3E+02
1.1E-04
100-41-4
Eth lbenzene
0.51
0.0000025
V
1.1E+00
LOOE+00
2.1E+02
4.5E-07
4.9E-04
109-99-9
-Tetrah drofitran
6
V
2.00E+00
4.2E+02
2.9E-03
142-82-5
Heptane, N-
0.52
V
4.00E-01
8.3E+01
1.2E-03
110-54-3
Hexane, N-
3.7
V
7.00E-01
1.5E+02
5.1E-03
591-78-6
Hexanone, 2-
0.46
V
3.00E-02
6.3E+00
1.5E-02
67-63-0
Iso ro anol
7.1
V
2.00E-01
4.2E+O1
3.4E-02
78-93-3
Methyl Ethyl Ketone (2-Butanone)
7
V
-
5.00E+00
1.0E+03
1.3E-03
108-10-1
Methyl lsobutyl Ketone 4-meth 1-2- entanone
0.44
V
3.00E+00
6.3E+02
1.4E-04
91-20-3
-Naphthalene
0.55
0.000034
V
8.3E-02
3.00E-03
6.3E-01
6.7E-06
1.8E-01
115-07-1
Propylene
2.3
V
3.00E+00
6.3E+02
7.4E-04
100-42-5
Styrene
0.45
V
1.00E+00
2.1E+02
4.3E-04
127-18-4
Tetrachloroethylene
1
0.00000026
V
1.1E+01
4.00E-02
8.3E+40
9.3E-08
2.4E-02
108-88-3
Toluene
8.3
V
5.00E+00
1.0E+03
1.6E-03
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.49
V
5.00E+00
1.0E+03
9.4E-05
75-69-4
Trichlorofluoromethane
1.2
V
95-63-6
Trimeth lbenzene, 1,2,4-
0.75
V
6.00E-02
1.3E+01
1.2E-02
-6-8
Trimeth lbeene, 1,3,5-
0
V
.
1.3E+1
8.3E-03
Xlene,
9
9.3E-03]O37-
95-47-6
1 X lene, o-
1 0.44
1
1
1 V
I
1.00E-01
I 2.1E+01
I
4.2E-03
Cumulative: I 1.6E-OS 5.1E-Ol
North Cerdiea DED Risk Calculata

IDEQ Risk Calculator - Vapor Intrusion - Non -Residential Worker Indoor Air r
Version Date: January 2023
Basis: November 2022 EPA RSL Table
ID:
Unit ID: EU 3 (IA-10 to IA-14) Adiusted
** - 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.
All concentrations are in uo/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/m)
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
30
71-43-2
Benzene
0.48
1.6E+00
2.6E+01
3.1E-07
3.7E-03
75-15-0
Carbon Disulfide
1.1
6.1E+02
3.6E-04
56-23-5
Carbon Tetrachloride
0.52
2.0E+00
8.8E+01
2.5E-07
1.2E-03
67-66-3
Chloroform
0.27
5.3E-01
8.6E+01
5.1E-07
6.3E-04
74-87-3
Chloromethane
1.2
7.9E+01
3.0E-03
110-82-7
C clohexane
0.42
5.3E+03
1.6E-05
75-71-8
Dichlorodifluoromethane
2.1
8.8E+01
4.8E-03
107-06-2
Dichloroethane, 1,2-
0.27
4.7E-01
6.1E+00
5.7E-07
8.8E-03
78-87-5
Dichloro ro ane, 1,2-
0.3
3.3E+00
3.5E+00
9.1E-08
1.7E-02
123-91-1
Dioxane, 1,4-
0.6
2.5E+00
2.6E+01
2.4E-07
4.6E-03
141-78-6
Ethyl Acetate
2.3
6.1E+01
7.5E-03
75-00-3
Ethyl Chloride Chloroethane
0.47
3.5E+03
2.7E-05
100-41-4
Eth lbenzene
0.51
4.9E+00
8.8E+02
1.0E-07
1.2E-04
109-99-9
-Tetrah drofuran
6
1.8E+03
6.8E-04
142-82-5
He tane, N-
0.52
3.5E+02
3.0E-04
110-54-3
Hexane, N-
3.7
6.1 E+02
1.2E-03
591-78-6
Hexanone, 2-
0.46
2.6E+01
3.5E-03
67-63-0
Iso ro anol
7.1
1.8E+02
8.1E-03
78-93-3
Methyl Ethyl Ketone 2-Butanone
7
4.4E+03
3.2E-04
108-10-1
Methyl Isobutyl Ketone 4-meth 1-2- entanone
0.44
2.6E+03
3.3E-05
91-20-3
-Naphthalene
0.55
3.6E-01
2.6E+00
1.5E-06
4.2E-02
115-07-1
Propylene
2.3
2.6E+03
1.8E-04
10042-5
Styrene
0.45
8.8E+02
1.0E-04
127-184
Tetrachloroethylene
1
4.7E+01
3.5E+01
2.1E-08
5.7E-03
108-88-3
Toluene
8.3
4.4E+03
3.8E-04
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.49
4.4E+03
2.2E-05
75-694
Trichlorofluoromethane
1.2
95-63-6
Trimeth lbenzene, 1,2,4-
0.75
5.3E+01
2.9E-03
108-67-8
Trimeth lbenzene, 1,3,5-
0.52
5.3E+01
2.0E-03
108-38-3
X lene, m-
0.97
8.8E+01
2.2E-03
9547-6
X lene, o-
0.44
8.8E+01
1.0E-03
Cumulative: I 3.6E-06 1.2E-0 l
North Carolina DEQ Risk Calculator

Date: January 2023
November 2022 EPA
ID:
** - 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.
All concentrations are in u¢/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/m)
IUR
(ug/m3)-1
muta-
gen
V
Target Indoor
Air Cone. for
Carcinogens @
TCR = 1 E-06
RIC
3
(mg/m)
Target Indoor Air
Cone. for Non -
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
11
V
71-43-2
Benzene
0.48
0.0000078
V
3.6E-01
3.00E-02
6.3E+00
1.3E-06
1.5E-02
75-15-0
Carbon Disulfide
0.17
V
7.00E-01
1.5E+02
2.3E-04
56-23-5
Carbon Tetrachloride
0.5
0.000006
V
4.7E-01
1.00E-01
2.1E+01
1.1E-06
4.8E-03
74-87-3
Chloromethane
0.33
V
9.00E-02
1.9E+01
3.5E-03
110-82-7
C clohexane
0.42
V
6.00E+00
1.3E+03
6.7E-05
75-71-8
Dichlorodifluoromethane
1.9
V
1.00E-01
2.1E+01
1.8E-02
107-06-2
Dichloroethane, 1,2-
0.27
0.000026
V
1.1E-01
7.00E-03
1.5E+40
2.5E-06
3.7E-02
78-87-5
Dichloro ro ane, 1,2-
0.11
0.0000037
V
7.6E-01
4.00E-03
8.3E-01
1.4E-07
2.6E-02
123-91-1
Dioxane, 1,4-
0.6
0.000005
V
5.6E-01
3.00E-02
6.3E+40
1.1E-06
1.9E-02
141-78-6
Ethyl Acetate
0.97
V
7.00E-02
1.5E+01
1.3E-02
75-00-3
Ethyl Chloride Chloroethane
0.092
V
4.00E+00
8.3E+02
2.2E-05
100-41-4
Eth lbenzene
0.51
0.0000025
V
1.1E+00
1.00E+00
2.1E+42
4.5E-07
4.9E-04
109-99-9
-Tetrah drofitran
4.6
V
2.00E+00
4.2E+02
2.2E-03
142-82-5
Heptane, N-
0.52
V
4.00E-01
8.3E+01
1.2E-03
110-54-3
Hexane, N-
3.7
V
7.00E-01
1.5E+02
5.1E-03
591-78-6
Hexanone, 2-
0.41
V
3.00E-02
6.3E+00
1.3E-02
67-63-0
Iso ro anol
9
V
2.00E-01
4.2E+O1
4.3E-02
78-93-3
Methyl Ethyl Ketone (2-Butanone)
6.3
V
-
5.00E+00
1.0E+03
1.2E-03
108-10-1
Methyl Isobutyl Ketone 4-meth I-2- entanone
0.44
V
3.00E+00
6.3E+02
1.4E-04
91-20-3
-Naphthalene
0.39
0.000034
V
8.3E-02
3.00E-03
6.3E-01
4.7E-06
1.2E-01
115-07-1
Propylene
1.6
V
3.00E+00
6.3E+02
5.1E-04
100-42-5
Styrene
0.45
V
1.00E+00
2.1E+02
4.3E-04
108-88-3
Toluene
1.3
V
5.00E+00
1.0E+03
2.5E-04
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.5
V
5.00E+00
1.0E+03
9.6E-05
75-69-4
Trichlorofluoromethane
1.2
V
95-63-6
Trhneth lbenzene, 1,2,4-
1.2
V
6.00E-02
1.3E+01
1.9E-02
108-67-8
Trimeth lbenzene, 1,3,5-
0.28
V
6.00E-02
1.3E+01
4.5E-03
108-38-3
X lene, m-
0.97
V
1.00E-01
2.1E+01
9.3E-03
95-47-6
X lene, o-
0.44
V
1.00E-01
2.1E+01
4.2E-03
Cumulative: I l.lE-OS 3.7E-Ol
North Cerdiea DED Risk Calculata

IDEQ Risk Calculator - Vapor Intrusion - Non -Residential Worker Indoor Air r
Version Date: January 2023
Basis: November 2022 EPA RSL Table
ID:
Unit ID: EU 4
** - 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.
All concentratinnc are in no/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/m)
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
11
71-43-2
Benzene
0.48
1.6E+00
2.6E+01
3.1E-07
3.7E-03
75-15-0
Carbon Disulfide
0.17
6.1E+02
5.5E-05
56-23-5
Carbon Tetrachloride
0.5
2.0E+00
8.8E+01
2.4E-07
1.1E-03
74-87-3
Chloromethane
0.33
7.9E+01
8.4E-04
110-82-7
C clohexane
0.42
5.3E+03
1.6E-05
75-71-8
Dichlorodifluoromethane
1.9
8.8E+01
4.3E-03
107-06-2
Dichloroethane, 1,2-
0.27
4.7E-01
6.1E+00
5.7E-07
8.8E-03
78-87-5
Dichloro ro ane, 1,2-
0.11
3.3E+00
3.5E+00
3.3E-08
6.3E-03
123-91-1
Dioxane, 1,4-
0.6
2.5E+00
2.6E+01
2.4E-07
4.6E-03
141-78-6
Ethyl Acetate
0.97
6.1E+01
3.2E-03
75-00-3
Ethyl Chloride Chloroethane
0.092
3.5E+03
5.3E-06
100414
Eth lbenzene
0.51
4.9E+00
8.8E+02
1.0E-07
1.2E-04
109-99-9
-Tetrah drofivan
4.6
1.8E+03
5.3E-04
142-82-5
He tane, N-
0.52
3.5E+02
3.0E-04
110-54-3
Hexane, N-
3.7
6.1 E+02
1.2E-03
591-78-6
Hexanone, 2-
0.41
2.6E+01
3.1E-03
67-63-0
Iso ro anol
9
1.8E+02
1.0E-02
78-93-3
Methyl Ethyl Ketone 2-Butanone
6.3
4.4E+03
2.9E-04
108-10-1
Methyl Isobutyl Ketone 4-meth 1-2- entanone
0.44
2.6E+03
3.3E-05
91-20-3
-Naphthalene
0.39
3.6E-01
2.6E+00
11E-06
3.0E-02
115-07-1
Propylene
1.6
2.6E+03
1.2E-04
10042-5
Styrene
0.45
8.8E+02
1.0E-04
108-88-3
Toluene
1.3
4.4E+03
5.9E-05
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.5
4.4E+03
2.3E-05
75-69 4
Trichlorofluoromethane
1.2
95-63-6
Trimeth lbenzene, 1,2,4-
1.2
5.3E+01
4.6E-03
108-67-8
Trimeth lbenzene, 1,3,5-
0.28
5.3E+01
1.1E-03
108-38-3
X lene, m-
0.97
8.8E+01
2.2E-03
9547-6
X lene, o-
0.44
8.8E+01
1.0E-03
Cumulative: I 2.6E-06 8.8E-02
North Carolina DEQ Risk Calculator

Date: January 2023
November 2022 EPA
ID:
** - 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.
All concentrations are in u¢/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/m)
IUR
(ug/m3)-1
muta-
gen
V
Target Indoor
Air Cone. for
Carcinogens @
TCR = 1 E-06
RIC
3
(mg/m)
Target Indoor Air
Cone. for Non -
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
89
V
71-43-2
Benzene
0.48
0.0000078
V
3.6E-01
3.00E-02
6.3E+00
1.3E-06
1.5E-02
75-15-0
Carbon Disulfide
0.64
V
7.00E-01
1.5E+02
8.8E-04
56-23-5
Carbon Tetrachloride
0.49
0.000006
V
4.7E-01
1.00E-01
2.1E+01
1.0E-06
4.7E-03
67-66-3
Chloroform
0.18
0.000023
V
1.2E-01
9.80E-02
2.0E+01
1.5E-06
1.8E-03
74-87-3
Chloromethane
1.3
V
9.00E-02
1.9E+01
1.4E-02
110-82-7
C clohexane
1.2
V
6.00E+00
1.3E+03
1.9E-04
75-71-8
Dichlorodifluoromethane
2.1
V
1.00E-01
2.1E+01
2.0E-02
107-06-2
Dichloroethane, 1,2-
0.32
0.000026
V
1.1E-01
7.00E-03
1.5E+40
3.0E-06
4.4E-02
141-78-6
Ethyl Acetate
3.4
V
7.00E-02
1.5E+01
4.7E-02
75-00-3
Ethyl Chloride Chloroethane
0.11
V
4.00E+00
8.3E+02
2.6E-05
100-41-4
Eth lbenzene
0.51
0.0000025
V
1.1E+00
1.00E+00
2.1E+42
4.5E-07
4.9E-04
109-99-9
-Tetrah drofitran
29
V
2.00E+00
4.2E+02
1.4E-02
142-82-5
Heptane, N-
0.52
V
4.00E-01
8.3E+01
1.2E-03
110-54-3
Hexane, N-
2.2
V
7.00E-01
1.5E+02
3.0E-03
591-78-6
Hexanone, 2-
0.81
V
3.00E-02
6.3E+00
2.6E-02
67-63-0
Iso ro anol
6.3
V
2.00E-01
4.2E+O1
3.0E-02
78-93-3
Methyl Ethyl Ketone (2-Butanone)
33
V
-
5.00E+00
1.0E+03
6.3E-03
108-10-1
Methyl lsol ut ( Ketone 4-meth 1-2- entanone
1
V
3.00E+00
6.3E+02
3.2E-04
91-20-3
-Naphthalene
0.57
0.000034
V
8.3E-02
3.00E-03
6.3E-01
6.9E-06
1.8E-01
115-07-1
Propylene
1.8
V
3.00E+00
6.3E+02
5.8E-04
100-42-5
Styrene
1.2
V
1.00E+00
2.1E+02
1.2E-03
108-88-3
Toluene
7.3
V
5.00E+00
1.0E+03
1.4E-03
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.52
V
5.00E+00
1.0E+03
1.0E-04
75-69-4
Trichlorofluoromethane
1.2
V
95-63-6
Trhneth lbenzene, 1,2,4-
1.9
V
6.00E-02
1.3E+01
3.0E-02
108-67-8
Trimeth lbenzene, 1,3,5-
0.52
V
6.00E-02
1.3E+O1
8.3E-03
108-05-4
Vinyl Acetate
4.2
V
2.00E-01
4.2E+01
2.0E-02
108-38-3
X lene, m-
1.5
V
1.00E-01
2.1E+01
1.4E-02
95-47-6
X lene, o-
0.71
V
1.00E-01
2.1E+01
6.8E-03
Cumulative: I 1.4E-OS 4.9E-Ol
North Cerdiea DED Risk Calculata

IDEQ Risk Calculator - Vapor Intrusion - Non -Residential Worker Indoor Air r
Version Date: January 2023
Basis: November 2022 EPA RSL Table
ID:
Unit ID: EU 5 QA-16 to IA-191 Adiusted
** - 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.
All cnncentratinnc are in uv/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/m)
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
89
71-43-2
Benzene
0.48
1.6E+00
2.6E+01
3.1E-07
3.7E-03
75-15-0
Carbon Disulfide
0.64
6.1E+02
2.1E-04
56-23-5
Carbon Tetrachloride
0.49
2.0E+00
8.8E+01
2.4E-07
1.1E-03
67-66-3
Chloroform
0.18
5.3E-01
8.6E+01
3.4E-07
4.2E-04
74-87-3
Chloromethane
1.3
7.9E+01
3.3E-03
110-82-7
C clohexane
1.2
5.3E+03
4.6E-05
75-71-8
Dichlorodifluoromethane
2.1
8.8E+01
4.8E-03
107-06-2
Dichloroethane, 1,2-
0.32
4.7E-01
6.1E+00
6.8E-07
1.0E-02
141-78-6
Ethyl Acetate
3.4
6.1E+01
1.1E-02
75-00-3
Ethyl Chloride Chloroethane
0.11
3.5E+03
6.3E-06
100-41-4
Eth lbenzene
0.51
4.9E+00
8.8E+02
1.0E-07
1.2E-04
109-99-9
-Tetrah drofuran
29
1.8E+03
3.3E-03
142-82-5
Heptane, N-
0.52
3.5E+02
3.0E-04
110-54-3
Hexane, N-
2.2
6.1E+02
7.2E-04
591-78-6
Hexanone, 2-
0.81
2.6E+01
6.2E-03
67-63-0
Iso ro anol
6.3
1.8E+02
7.2E-03
78-93-3
Methyl Ethyl Ketone 2-Butanone
33
4.4E+03
1.5E-03
108-10-1
Methyl Isobutyl Ketone 4-meth 1-2- entanone
1
2.6E+03
7.6E-05
91-20-3
-Naphthalene
0.57
3.6E-01
2.6E+00
1.6E-06
4.3E-02
115-07-1
Propylene
1.8
2.6E+03
1.4E-04
100-42-5
Styrene
1.2
8.8E+02
2.7E-04
108-88-3
Toluene
7.3
4.4E+03
3.3E-04
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.52
4.4E+03
2.4E-05
75-69-4
Trichlorofluoromethane
1.2
95-63-6
Trimeth lbenzene, 1,2,4-
1.9
5.3E+01
7.2E-03
108-67-8
1 Trimeth lbenzene, 1,3,5-
0.52
5.3E+01
2.0E-03
108-05-4
Vinyl Acetate
4.2
1.8E+02
4.8E-03
108-38-3
X lene, m-
1.5
8.8E+01
3.4E-03
9547-6
X lene, o-
0.71
8.8E+01
1.6E-03
Cumulative: I 3.2E-06 1.2E-01
North Carolina DEQ Risk Calculator

Date: January 2023
November 2022 EPA
ID:
** - 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.
All concentrations are in ue/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/m)
IUR
(ug/m3)-1
muta-
gen
V
Target Indoor
Air Cone. for
Carcinogens @
TCR = 1 E-06
RIC
3
(mg/m)
Target Indoor Air
Cone. for Non -
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
30
V
71-43-2
Benzene
0.48
0.0000078
V
3.6E-01
3.00E-02
6.3E+00
1.3E-06
1.5E-02
75-15-0
Carbon Disulfide
0.11
V
7.00E-01
1.5E+02
1.5E-04
56-23-5
Carbon Tetrachloride
0.51
0.000006
V
4.7E-01
1.00E-01
2.1E+01
1.1E-06
4.9E-03
74-87-3
Chloromethane
0.33
V
9.00E-02
1.9E+01
3.5E-03
110-82-7
C clohexane
0.51
V
6.00E+00
1.3E+03
8.2E-05
75-71-8
Dichlorodifluoromethane
1.9
V
1.00E-01
2.1E+01
1.8E-02
141-78-6
Ethyl Acetate
2
V
7.00E-02
1.5E+01
2.7E-02
100-41-4
Eth lbenzene
0.64
0.0000025
V
1.1E+00
1.00E+00
2.1E+42
5.7E-07
6.1E-04
109-99-9
-Tetrah drofitran
39
V
2.00E+00
4.2E+02
1.9E-02
142-82-5
Heptane, N-
0.63
V
4.00E-01
8.3E+01
1.5E-03
110-54-3
J Hexane, N-
1.6
V
7.00E-01
1.5E+02
2.2E-03
591-78-6
Hexanone, 2-
0.41
V
3.00E-02
6.3E+00
1.3E-02
67-63-0
Iso ro anol
1.9
V
2.00E-01
4.2E+O1
9.1E-03
78-93-3
Methyl Ethyl Ketone (2-Butanone)
6.3
V
-
5.00E+00
1.0E+03
1.2E-03
108-10-1
Methyl lsobut ( Ketone 4-meth 1-2- entanone
0.37
V
3.00E+00
6.3E+02
1.2E-04
115-07-1
Propylene
1.7
V
3.00E+00
6.3E+02
5.4E-04
100-42-5
Styrene
0.39
V
1.00E+00
2.1E+02
3.7E-04
108-88-3
Toluene
4.4
V
5.00E+00
1.0E+03
8.4E-04
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.46
V
5.00E+00
1.0E+03
8.8E-05
75-69-4
Trichlorofluoromethane
1.2
V
95-63-6
Trimeth lbenzene, 1,2,4-
1.3
V
6.00E-02
1.3E+01
2.1E-02
108-67-8
Trimetitlbenzene, 1,3,5-
0.34
V
6.00E-02
1.3E+01
5.4E-03
108-05-4
Vinyl Acetate
3.8
V
2.00E-01
4.2E+O1
1.8E-02
108-38-3
X lene, m-
2.2
V
1.00E-01
2.1E+01
2.1E-02
95-47-6
X lene, o-
0.97
V
1.00E-01
2.1E+01
9.3E-03
Cumulative: 1 3.0E-06 1.9E-0l
NOMh Cardin. DED Risk CWWaW

IDEQ Risk Calculator - Vapor Intrusion - Non -Residential Worker Indoor Air r
Version Date: January 2023
Basis: November 2022 EPA RSL Table
ID:
Unit ID: EU 6 (IA-21 and
** - 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.
All concentrations are in uo/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/ru)
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
30
71-43-2
Benzene
0.48
1.6E+00
2.6E+01
3.1E-07
3.7E-03
75-15-0
Carbon Disulfide
0.11
6.1E+02
3.6E-05
56-23-5
Carbon Tetrachloride
0.51
2.0E+00
8.8E+01
2.5E-07
1.2E-03
74-87-3
Chloromethane
0.33
7.9E+01
8.4E-04
110-82-7
C clohexane
0.51
5.3E+03
1.9E-05
75-71-8
Dichlorodifluoromethane
1.9
8.8E+01
4.3E-03
141-78-6
Ethyl Acetate
2
6.1E+01
6.5E-03
100414
Eth lbenzene
0.64
4.9E+00
8.8E+02
1.3E-07
1.5E-04
109-99-9
-Tetrah drofivan
39
1.8E+03
4.5E-03
142-82-5
He tane, N-
0.63
3.5E+02
3.6E-04
110-54-3
Hexane, N-
1.6
6.1 E+02
5.2E-04
591-78-6
Hexanone, 2-
0.41
2.6E+01
3.1E-03
67-63-0
Iso ro anol
1.9
1.8E+02
2.2E-03
78-93-3
Methyl Ethyl Ketone 2-Butanone
6.3
4.4E+03
2.9E-04
108-10-1
Methyl Isobutyl Ketone 4-meth 1-2- entanone
0.37
2.6E+03
2.8E-05
115-07-1
Propylene
1.7
2.6E+03
1.3E-04
10042-5
Styrene
0.39
8.8E+02
8.9E-05
108-88-3
Toluene
4.4
4.4E+03
2.0E-04
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.46
4.4E+03
2.1E-05
75-694
Trichlorofluoromethane
1.2
95-63-6
Trimeth lbenzene, 1,2,4-
1.3
5.3E+01
4.9E-03
108-67-8
Trimeth lbenzene, 1,3,5-
0.34
5.3E+01
1.3E-03
108-054
Vinyl Acetate
3.8
1.8E+02
4.3E-03
108-38-3
X lene, m-
2.2
8.8E+01
5.0E-03
9547-6
X lene, o-
0.97
8.8E+01
2.2E-03
Cumulative: I 6.9E-07 4.6E-02
North Carolina DEQ Risk Calculator

Date: January 2023
November 2022 EPA
ID:
** - 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.
All concentrations are in u¢/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/m)
IUR
(ug/m3)-1
muta-
gen
V
Target Indoor
Air Cone. for
Carcinogens @
TCR = 1 E-06
RIC
3
(mg/m)
Target Indoor Air
Cone. for Non -
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
19
V
71-43-2
Benzene
0.47
0.0000078
V
3.6E-01
3.00E-02
6.3E+00
1.3E-06
1.5E-02
74-83-9
Bromomethane
0.36
V
5.00E-03
1.0E+00
6.9E-02
75-15-0
Carbon Disulfide
0.1
V
7.00E-01
1.5E+02
1.4E-04
56-23-5
Carbon Tetrachloride
0.5
0.000006
V
4.7E-01
1.00E-01
2.1E+01
1.1E-06
4.8E-03
67-66-3
Chloroform
0.16
0.000023
V
1.2E-01
9.80E-02
2.0E+01
1.3E-06
1.6E-03
74-87-3
Chloromethane
0.5
V
9.00E-02
1.9E+01
5.3E-03
110-82-7
C clohexane
0.42
V
6.00E+00
1.3E+03
6.7E-05
75-71-8
Dichlorodifluoromethane
1.9
V
1.00E-01
2.1E+01
1.8E-02
78-87-5
Dichloro ro ane, 1,2-
0.15
0.0000037
V
7.6E-01
4.00E-03
8.3E-01
2.0E-07
3.6E-02
100-41-4
Eth lbenzene
0.51
0.0000025
V
1.1E+00
1.00E+00
2.1E+42
4.5E-07
4.9E-04
109-99-9
-Tetrah drofuran
0.97
V
2.00E+00
4.2E+02
4.7E-04
142-82-5
Heptane, N-
0.52
V
4.00E-01
8.3E+01
1.2E-03
110-54-3
J Hexane, N-
3.7
V
7.00E-01
1.5E+02
5.1E-03
591-78-6
Hexanone, 2-
0.85
V
3.00E-02
6.3E+00
2.7E-02
67-63-0
Iso ro anol
21
V
2.00E-01
4.2E+O1
1.0E-01
78-93-3
Methyl Ethyl Ketone (2-Butanone)
6.3
V
-
5.00E+00
1.0E+03
1.2E-03
108-10-1
Methyl Isobut ( Ketone 4-meth 1-2- entanone
0.44
V
3.00E+00
6.3E+02
1.4E-04
91-20-3
-Naphthalene
0.27
0.000034
V
8.3E-02
3.00E-03
6.3E-01
3.3E-06
8.6E-02
115-07-1
Propylene
1.1
V
3.00E+00
6.3E+02
3.5E-04
100-42-5
Styrene
0.45
V
1.00E+00
2.1E+02
4.3E-04
127-18-4
Tetrachloroethylene
0.21
0.00000026
V
1.1E+01
4.00E-02
8.3E+00
1.9E-08
5.0E-03
108-88-3
Toluene
0.93
V
5.00E+00
1.0E+03
1.8E-04
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.47
V
5.00E+00
1.0E+03
9.0E-05
79-01-6
Trichloroeth lene
0.34
0.0000041
M
V
4.8E-01
2.00E-03
4.2E-01
7.1E-07
1.6E-01
75-69-4
Trichlorofluoromethane
1.2
V
95-63-6
Trimeth lbenzene, 1,2,4-
0.88
V
6.00E-02
1.3E+01
1.4E-02
-8
Trimeth lbenzene, 11315-
027
V
.E0
1.3
3.7E-031067
Xylene,
.
-
2E+1
9.3E-03
95-47-6
1 X lene, o-
1 0.44
1
1
1 V
I
1.00E-01
I 2.1E+01
I
4.2E-03
Cumulative: 1 8.3E-06 5.7E-Ol
North Cerdiea DED Risk Calculata

IDEQ Risk Calculator - Vapor Intrusion - Non -Residential Worker Indoor Air r
Version Date: January 2023
Basis: November 2022 EPA RSL Table
ID:
Unit ID: EU 7
** - 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.
All concentrations are in no/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/m)
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
19
71-43-2
Benzene
0.47
1.6E+00
2.6E+01
3.0E-07
3.6E-03
74-83-9
Bromomethane
0.36
4.4E+00
1.6E-02
75-15-0
Carbon Disulfide
0.1
6.1E+02
3.3E-05
56-23-5
Carbon Tetrachloride
0.5
2.0E+00
8.8E+01
2.4E-07
1.1E-03
67-66-3
Chloroform
0.16
5.3E-01
8.6E+01
3.0E-07
3.7E-04
74-87-3
Chloromethane
0.5
7.9E+01
1.3E-03
110-82-7
C clohexane
0.42
5.3E+03
1.6E-05
75-71-8
Dichlorodifluoromethane
1.9
8.8E+01
4.3E-03
78-87-5
Dichloro ro ane, 1,2-
0.15
3.3E+00
3.5E+00
4.5E-08
8.6E-03
100-41-4
Eth lbenzene
0.51
4.9E+00
8.8E+02
1.0E-07
1.2E-04
109-99-9
-Tetrah drofuran
0.97
1.8E+03
1.1E-04
142-82-5
He tane, N-
0.52
3.5E+02
3.0E-04
110-54-3
Hexane, N-
3.7
6.1 E+02
1.2E-03
591-78-6
Hexanone, 2-
0.85
2.6E+01
6.5E-03
67-63-0
Iso ro anol
21
1.8E+02
2.4E-02
78-93-3
Methyl Ethyl Ketone 2-Butanone
6.3
4.4E+03
2.9E-04
108-10-1
Methyl Isobutyl Ketone 4-meth 1-2- entanone
0.44
2.6E+03
3.3E-05
91-20-3
-Naphthalene
0.27
3.6E-01
2.6E+00
7.5E-07
2.1E-02
115-07-1
Propylene
1.1
2.6E+03
8.4E-05
10042-5
Styrene
0.45
8.8E+02
1.0E-04
127-184
Tetrachloroethylene
0.21
4.7E+01
3.5E+01
4.5E-09
1.2E-03
108-88-3
Toluene
0.93
4.4E+03
4.2E-05
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.47
4.4E+03
2.1E-05
79-01-6
Trichloroeth lene
0.34
3.0E+00
1.8E+00
1.1E-07
3.9E-02
75-694
Trichlorofluoromethane
1.2
95-63-6
Trimeth lbenzene, 1,2,4-
0.88
5.3E+01
3.3E-03
108-67-8
Trimeth lbenzene, 1,3,5-
0.23
5.3E+01
8.8E-04
108-38-3
X lene, m-
0.97
8.8E+01
2.2E-03
9547-6
X lene, o-
0.44
8.8E+01
1.0E-03
Cumulative: I 1.9E-06 1.4E-01
North Carolina DEQ Risk Calculator

Date: January 2023
November 2022 EPA
ID:
** - 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.
All concentrations are in u¢/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/m)
IUR
(ug/m3)-1
muta-
gen
V
Target Indoor
Air Cone. for
Carcinogens @
TCR = 1 E-06
RIC
3
(mg/m)
Target Indoor Air
Cone. for Non -
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
11
V
71-43-2
Benzene
0.48
0.0000078
V
3.6E-01
3.00E-02
6.3E+00
1.3E-06
1.5E-02
56-23-5
Carbon Tetrachloride
0.5
0.000006
V
4.7E-01
1.00E-01
2.1E+01
1.1E-06
4.8E-03
74-87-3
Chloromethane
0.33
V
9.00E-02
1.9E+01
3.5E-03
110-82-7
C clohexane
0.14
V
6.00E+00
1.3E+03
2.2E-05
75-71-8
Dichlorodifluoromethane
2.2
V
1.00E-01
2.1E+01
2.1E-02
141-78-6
Ethyl Acetate
0.97
V
7.00E-02
1.5E+01
1.3E-02
100-41-4
Eth lbenzene
0.51
0.0000025
V
1.1E+00
1.00E+00
2.1E+02
4.5E-07
4.9E-04
109-99-9
-Tetrah drofuran
0.97
V
2.00E+00
4.2E+02
4.7E-04
142-82-5
Heptane, N-
0.27
V
4.00E-01
8.3E+01
6.5E-04
591-78-6
Hexanone, 2-
0.41
V
3.00E-02
6.3E+00
1.3E-02
67-63-0
Iso ro anol
1.4
V
2.00E-01
4.2E+O1
6.7E-03
78-93-3
Methyl Ethyl Ketone (2-Butanone)
6.3
V
-
5.00E+40
1.0E+03
1.2E-03
108-10-1
Methyl Isobut ( Ketone 4-meth I-2- entanone
0.25
V
3.00E+00
6.3E+02
8.0E-05
115-07-1
Propylene
0.87
V
3.00E+00
6.3E+02
2.8E-04
100-42-5
Styrene
0.45
V
1.00E+00
2.1E+02
4.3E-04
108-88-3
Toluene
0.57
V
5.00E+00
1.0E+03
1.1E-04
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.5
V
5.00E+00
1.0E+03
9.6E-05
75-69-4
Trichlorofluoromethane
1.2
V
95-63-6
Truneth lbenzene, 1,2,4-
0.96
V
6.00E-02
1.3E+01
1.5E-02
108-67-8
Truneth lbenzene, 1,3,5-
0.25
V
6.00E-02
1.3E+01
4.0E-03
108-OS-4
Vinyl Acetate
3.4
V
2.00E-01
4.2E+01
1.6E-02
108-38-3
X lene, m-
3.1
V
1.00E-01
2.1E+01
3.0E-02
95-47-6
1 X lene, o-
1.4
V
1.00E-01
2.1E+01
1.3E-02
Cumulative: 1 2.9E-06 1.6E-0 l
North Cerdha DED Risk Calculata

IDEQ Risk Calculator - Vapor Intrusion - Non -Residential Worker Indoor Air r
Version Date: January 2023
Basis: November 2022 EPA RSL Table
ID:
Unit ID: EU 8 (IA-24. IA-25. IA-25
** - 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.
All concentrntions are in nv/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/m)
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
11
71-43-2
Benzene
0.48
1.6E+00
2.6E+01
3.1E-07
3.7E-03
56-23-5
Carbon Tetrachloride
0.5
2.0E+00
8.8E+01
2.4E-07
1.1E-03
74-87-3
Chloromethane
0.33
7.9E+01
8.4E-04
110-82-7
C clohexane
0.14
5.3E+03
5.3E-06
75-71-8
Dichlorodifluoromethane
2.2
8.8E+01
5.0E-03
141-78-6
Ethyl Acetate
0.97
6.1E+01
3.2E-03
100414
Eth lbenzene
0.51
4.9E+00
8.8E+02
1.0E-07
1.2E-04
109-99-9
--Tetrah drofuran
0.97
1.8E+03
1.1E-04
142-82-5
He tane, N-
0.27
3.5E+02
1.5E-04
591-78-6
Hexanone, 2-
0.41
2.6E+01
3.1E-03
67-63-0
Iso ro anol
1.4
1.8E+02
1.6E-03
78-93-3
Methyl Ethyl Ketone 2-Butanone
6.3
4.4E+03
2.9E-04
108-10-1
Methyl Isobutyl Ketone 4-meth 1-2- entanone
0.25
2.6E+03
1.9E-05
115-07-1
Propylene
0.87
2.6E+03
6.6E-05
100-42-5
Styrene
0.45
8.8E+02
1.0E-04
108-88-3
Toluene
0.57
4.4E+03
2.6E-05
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.5
4.4E+03
2.3E-05
75-694
Trichlorofluoromethane
1.2
95-63-6
Trimeth lbenzene, 1,2,4-
0.96
5.3E+01
3.7E-03
108-67-8
Trimeth lbenzene, 1,3,5-
0.25
5.3E+01
9.5E-04
108-05-4
Vinyl Acetate
3.4
1.8E+02
3.9E-03
108-38-3
X lene, m-
3.1
8.8E+01
7.1E-03
9547-6
X lene, o-
1.4
8.8E+01
3.2E-03
Cumulative: I 6.5E-07 3.8E-02
North Carolina DEQ Risk Calculator

DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: July 2023
Basis: May 2023 EPA RSL Table
Site ID: 23076-19-092
Exposure Unit ID: Site -wide Sub -Slab Soil Gas
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.
All concentrations are in u /m3
Calculated
Target Indoor
Target
CAS #
Chemical Name:
Soil Gas
Concentration
3
(ug/m)
Indoor Air
Concentration
Concentration
(ug/m3)
Air Conc. for
Carcinogens @
TCR = 1E-06
Indoor Air
Conc. for Non -
Carcinogens @
THQ = 0.2
Calculated
Risk
Calculated
Non -
Carcinogenic
Hazard
Quotient
71-43-2
Benzene
0.74
0.0222
3.6E-01
6.3E+00
6.2E-08
7.1E-04
74-83-9
Bromomethane
0.9
0.027
-
1.0E+00
5.2E-03
75-15-0
Carbon Disulfide
4.4
0.132
-
1.5E+02
1.8E-04
67-66-3
Chloroform
1.8
0.054
1.2E-01
2.0E+01
4.4E-07
5.3E-04
74-87-3
Chloromethane
7.2
0.216
-
1.9E+01
2.3E-03
110-82-7
C clohexane
2
0.06
-
1.3E+03
9.6E-06
106-93-4
Dibromoethane, 1,2-
0.93
0.0279
4.7E-03
1.9E+00
6.0E-06
3.0E-03
75-71-8
Dichlorodifluoromethane
2.2
0.066
-
2.1E+01
6.3E-04
75-34-3
Dichloroethane, 1,1-
0.71
0.0213
1.8E+00
-
1.2E-08
78-87-5
Dichloro ro one, 1,2-
1.3
0.039
7.6E-01
8.3E-01
5.1E-08
9.3E-03
123-91-1
Dioxane, 1,4-
0.81
0.0243
5.6E-01
6.3E+00
4.3E-08
7.8E-04
141-78-6
Ethyl Acetate
3.8
0.114
-
1.5E+01
1.6E-03
75-00-3
Ethyl Chloride Chloroethane
1.8
0.054
-
8.3E+02
1.3E-05
100-41-4
Eth lbenzene
1.1
0.033
1.1E+00
2.1E+02
2.9E-08
3.2E-05
109-99-9
-Tetrah drofuran
29
0.87
-
4.2E+02
4.2E-04
142-82-5
He tare, N-
0.89
0.0267
-
8.3E+01
6.4E-05
591-78-6
Hexanone, 2-
2.5
0.075
-
6.3E+00
2.4E-03
67-63-0
Iso ro anol
35
1.05
-
4.2E+01
5.0E-03
78-93-3
Methyl Ethyl Ketone 2-Butanone
33
0.99
-
1.0E+03
1.9E-04
108-10-1
Methyl Isobu 1 Ketone 4-meth 1-2- entanone)
1
0.03
-
6.3E+02
9.6E-06
75-09-2
Methylene Chloride
5
0.15
1.0E+02
1.3E+02
1.5E-09
2.4E-04
91-20-3
-Naphthalene
1.1
0.033
8.3E-02
6.3E-01
4.0E-07
1.1E-02
100-42-5
Styrene
1.2
0.036
-
2.1E+02
3.5E-05
127-18-4
Tetrachloroeth lene
5.1
0.153
1.1E+01
8.3E+00
1.4E-08
3.7E-03
108-88-3
Toluene
15
0.45
-
1.0E+03
8.6E-05
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
11
0.33
-
1.0E+03
6.3E-05
71-55-6
Trichloroethane, 1,1,1-
1.4
0.042
-
1.0E+03
8.1E-06
79-01-6
Trichloroeth lene
1.6
0.048
4.8E-01
4.2E-01
1.0E-07
2.3E-02
95-63-6
Trimeth lbenzene, 1,2,4-
5.3
0.159
-
1.3E+01
2.5E-03
108-05-4
Vinyl Acetate
4.2
0.126
-
4.2E+01
6.0E-04
108-38-3
X lene, m-
3.5
0.105
-
2.1E+01
1.0E-03
9547-6
X lene, o-
0.97
0.0291
-
2.1E+01
2.8E-04
North Carolina DEQ Risk Calculator

DEQ Risk Calculator - Vapor Intrusion - Non -Residential Worker Soil Gas to Indoor Air 1
Version Date: July 2023
Basis: May 2023 EPA RSL Table
Site ID: 23076-19-092 jmmi&
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.
All concentrations are in ue/m3
CAS #
Chemical Name:
Soil Gas
Concentration
3
(ug/m)
Calculated
Indoor Air
Concentration
(ug/ms)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non -
Carcinogens @
T'HQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non -
Carcinogenic
Hazard
Quotient
71-43-2
Benzene
0.74
0.0074
1.6E+00
2.6E+01
4.7E-09
5.6E-05
74-83-9
Bromomethane
0.9
0.009
4.4E+00
4.1E-04
75-15-0
Carbon Disulfide
4.4
0.044
6.1E+02
1.4E-05
67-66-3
Chloroform
1.8
0.018
5.3E-01
8.6E+01
3.4E-08
4.2E-05
74-87-3
Chloromethane
7.2
0.072
7.9E+01
1.8E-04
110-82-7
C clohexane
2
0.02
5.3E+03
7.6E-07
106-93-4
Dibromoethane, 1,2-
0.93
0.0093
2.0E-02
7.9E+00
4.5E-07
2.4E-04
75-71-8
Dichlorodifluoromethane
2.2
0.022
8.8E+01
5.0E-05
75-34-3
Dichloroethane, 1,1-
0.71
0.0071
7.7E+00
9.3E-10
78-87-5
Dichloro ro ane, 1,2-
1.3
0.013
3.3E+00
3.5E+00
3.9E-09
7.4E-04
123-91-1
Dioxane, 1,4-
0.81
0.0081
2.5E+00
2.6E+01
3.3E-09
6.2E-05
141-78-6
Ethyl Acetate
3.8
0.038
6.1E+01
1.2E-04
75-00-3
Ethyl Chloride (Chloroethane)
1.8
0.018
3.5E+03
1.0E-06
100-41-4
Eth lbenzene
1.1
0.011
4.9E+00
8.8E+02
2.2E-09
2.5E-06
109-99-9
-Tetrah drofuran
29
0.29
1.8E+03
3.3E-05
142-82-5
Heptane, N-
0.89
0.0089
3.5E+02
5.1E-06
591-78-6
Hexanone, 2-
2.5
0.025
2.6E+01
1.9E-04
67-63-0
Iso ro anol
35
0.35
1.8E+02
4.0E-04
78-93-3
Methyl Ethyl Ketone (2-Butanone)
33
0.33
4.4E+03
1.5E-05
108-10-1
Methyl Isobutyl Ketone (4-meth 1-2- entanone)
1
0.01
2.6E+03
7.6E-07
75-09-2
Methylene Chloride
5
0.05
1.2E+03
5.3E+02
4.1E-11
1.9E-05
91-20-3
-Naphthalene
1.1
0.011
3.6E-01
2.6E+00
3.0E-08
8.4E-04
100-42-5
Styrene
1.2
0.012
8.8E+02
2.7E-06
127-18-4
Tetrachloroethylene
5.1
0.051
4.7E+01
3.5E+01
1.1E-09
2.9E-04
108-88-3
Toluene
15
0.15
4.4E+03
6.8E-06
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
11
0.11
4.4E+03
5.0E-06
71-55-6
Trichloroethane, 1,1,1-
1.4
0.014
4.4E+03
6.4E-07
79-01-6
Trichloroethylene
1.6
0.016
3.0E+00
1.8E+00
5.3E-09
1.8E-03
95-63-6
Trimeth lbenzene, 1,2,4-
5.3
0.053
5.3E+01
2.0E-04
108-05-4
Vinyl Acetate
4.2
0.042
1.8E+02
4.8E-05
108-39-3
X lene, m-
3.5
0.035
8.8E+01
8.0E-05
95-47-6
X lene, o-
0.97
0.0097
8.8E+01
2.2E-05
Cumulative: I 5.4E-07 I 5.9E-03
North Carolina DEQ Risk Calculator