23067_Blythe Isenhour_VIMS Install Report_Bldg 1007_20240206

VIMS Installation Completion Report

Townes at LoSo
Building 1007 (Units 31, 32, & 33)

Blythe Isenhour Brownfields Site
4920 Old Pineville Road
Charlotte, North Carolina
Brownfields Project No. 23067-19-060

H&H Job No. NVR-013 February 6, 2024

#C-1269 Engineering #C-245 Geology
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VIMS Installation Completion Report Townes at LoSo – Building 1007 Blythe Isenhour Charlotte, North Carolina Brownfields Project No. 23067-19-060 H&H Job No. NVR-013 Table of Contents 1.0 Introduction ..............................................................................................................................1
2.0 VIMS Installation and Influence Testing ..............................................................................4
2.1 VIMS Installation ...................................................................................................................4
2.2 VIMS Influence Testing .........................................................................................................6
3.0 Sub-Slab Soil Gas Assessment Activities ...............................................................................8
3.1 Sub-Slab Soil Gas Sampling ..................................................................................................8
3.2 Sub-Slab Soil Gas Sampling Results ......................................................................................9
4.0 Methane Gas Screening .........................................................................................................11
5.0 Summary and Conclusions ...................................................................................................13
6.0 Engineer’s Certification ........................................................................................................15

List of Tables

Table 1 Summary of Sub-Slab Soil Gas Analytical Data
Table 2 Summary of Methane Screening Data
List of Figures

Figure 1 Site Location Map
Figure 2 Site Plan

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List of Appendices

Appendix A Historical Data Summary Tables and Sample Location Map
Appendix B Product Specification Sheets
Appendix C VIMS As-Built Drawings
Appendix D VIMS Installation Photographs
Appendix E Field Forms and Field Data
Appendix F Laboratory Analytical Report
Appendix G PVC Primer and PVC Glue Material Safety Data Sheets
Appendix H DEQ Risk Calculator Summary Pages

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VIMS Installation Completion Report Townes at LoSo – Building 1007 Blythe Isenhour Charlotte, North Carolina Brownfields Project No. 23067-19-060 H&H Job No. NVR-013 1.0 Introduction

Hart & Hickman, PC (H&H) has prepared this report to document vapor intrusion mitigation
system (VIMS) installation, influence testing, and post-construction sub-slab soil gas (vapor)
assessment activities completed for Building 1007 at the Townes at LoSo development (formally
known as Old Pineville Road – Phase II) at the Blythe Isenhour North Carolina Department of
Environmental Quality (DEQ) Brownfields property (Brownfields Project No. 23067-19-060).
The property is located at 4920 Old Pineville Road in Charlotte, Mecklenburg County, North
Carolina (Site or subject Site) and totals approximately 1.67 acres of land.

The Townes at LoSo development plan includes construction of 12 buildings consisting of 46 for-
sale townhome units by Ryan Homes, an NVR, Inc. (NVR) company. The buildings include eight
3-unit townhome complexes, two 4-unit townhome complexes, and two 8-unit townhome
complexes. This report has been prepared for Townes at LoSo Building 1007 which includes a
total of three townhome units (Units 31, 32, & 33) constructed in the central portion of the Site. A
Site location map is provided as Figure 1, and a Site Plan that identifies Building 1007 is shown
in Figure 2. A table listing the unit numbers, associated monitoring point identifications (see
Section 2.0), and unit addresses for Building 1007 is included below.

Building 1007
Unit Number Address Associated Monitoring Point ID
31 6111 Cleburne Court MP-1007-31
32 6107 Cleburne Court MP-1007-32
33 6103 Cleburne Court MP-1007-33

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H&H previously completed soil, groundwater, soil gas, and sub-slab soil gas sampling assessment
activities for the Site in Mach 2020 to evaluate subsurface conditions for potential impacts. Results
of previous groundwater assessment activities completed in hydraulically upgradient and
downgradient portions of the Site did not identify volatile organic compounds (VOCs) at
concentrations above the DEQ 2L Groundwater Standards or the DEQ Division of Waste
Management (DWM) Residential Vapor Intrusion Groundwater Screening Levels (VISL). Results
of previous exterior soil gas assessment activities completed at the Site identified benzene,
ethylbenzene, naphthalene, 1,2,4-trimethylbenzene, and 1,3,5-trimethylbenzene in soil gas
samples at concentrations above their respective DWM Residential Soil Gas Screening Levels
(SGSLs). For ease of reference, the March 2020 data summary tables and a sample location map
are included in Appendix A.

A Brownfields Agreement between Boulevard at 4920 Old Pineville Road, LLC and DEQ was
recorded for the Site on December 10, 2021. Boulevard has since sold a portion of the property to
NVR. Although results of the assessment do not indicate the potential for structural vapor
intrusion, based on the DEQ Brownfields requirements for townhome developments, installation
of a minimum of a vapor intrusion mitigation system (VIMS) is needed for each townhome
building.

In accordance with the DEQ Brownfields Program Minimum Requirements for Townhome
Developments (Townhome Checklist) document, and to be in general compliance with the
Brownfields Agreement, the prospective developer (PD) will install a passive VIMS during
construction of each proposed townhome building. H&H prepared the Vapor Intrusion Mitigation
Plan (VIMP) and revisions to the VIMP based on DEQ comments. The final VIMP dated February
7, 2022, was approved by DEQ in a letter dated March 3, 2022.

The DEQ-approved VIMP includes installation of a passive VIMS in each of the townhome
buildings and post-installation sub-slab soil gas sampling. Note, for this building, DEQ also
requested screening for methane below the slab of the building as described in Section 4.0. This
report documents installation of the VIMS for Building 1007 at the Townes at LoSo development.
Following installation of the VIMS in other Site townhome buildings and completion of post-
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construction sampling, additional VIMS installation completion reports will be submitted under
separate cover.

A discussion of VIMS installation activities and influence testing is provided in Section 2.0, a
summary of sub-slab soil gas assessment activities is provided in Section 3.0, a summary of
methane screening activities is provided in Section 4.0, a summary and conclusions based on the
results of the VIMS installation, soil gas assessment activities, and methane screening are provided
in Section 5.0, and the engineer’s certification is provided in Section 6.0.

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2.0 VIMS Installation and Influence Testing

Building 1007 consists of three individually owned three-story townhomes that contain a
monolithic slab on-grade foundation with concrete footings below load bearing walls. Each unit
includes a stairwell, two car garage, and a foyer located on the ground floor of the structure. The
ground floor for each townhome unit is approximately 640 square feet. The second and third floors
contain residential livings spaces. Each building also contains a sloped roof with an attic space
located above the third floor that is used to house mechanical equipment. The attic is not designed
nor constructed to be a living space.

2.1 VIMS Installation

The DEQ-approved VIMP included installation of Vaporblock® Plus 20 (VBP20) vapor barrier
manufactured by Viaflex Inc., (Viaflex), previously known as Raven Industries, beneath the
concrete slab-on-grade and blocks walls of the townhouse buildings. VBP20 is an ASTM-certified
20-mil, multi-layer, chemically resistant vapor barrier, designed to prevent the migration of VOCs.
Technical specifications and installation instructions obtained from Viaflex for the VBP20 vapor
barrier are provided in Appendix B.

Based on the inspections described below, the vapor barrier was installed per manufacturer
installation instructions (Appendix B). Briefly, VBP20 was installed by the construction
contractor to cover the ground surface below the entire area of the buildings’ ground floor slabs.
The exterior edges of the VBP20 were set under the concrete foundations and installed below the
monolithic footings at the tenant separation walls. Seams within the building footprint have a
minimum 12-inch overlap and were sealed with VaporSeal™ tape. Small puncture holes and
utility penetrations were sealed with VaporSeal™ tape.

The VIMP also included installation of a passive mitigation system beneath the ground-level slab
to reduce the potential for vapor intrusion into the townhome units by vapor extraction. The units
contain ground floor garages adjacent to the foyer so the VIMS and sub-slab vapor extraction
piping was extended below the ground-level garages of the townhomes. Sub-slab vapor extraction
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is accomplished using soil gas collector mats manufactured by Radon Professional Discount
Supply (Radon PDS). The soil gas collector mat is a polystyrene plastic rectangular conduit with
a geotextile fabric covering that is 1-inch thick and 12-inches wide specifically designed for
collecting soil gas from below a building. The soil gas collector mat was connected to the vertical
risers using Radon PDS manufactured riser connector fittings in accordance with the manufacturer
installation instructions. The vertical risers consist of 3-inch diameter Sch 40 PVC pipes and
fittings that run from the slab through the upper floors and the attic space, then terminate above
the building’s roofline.

The passive VIMS is also enhanced with an Active Ventilation Aura AV-3-PVC (aluminum)
stationary wind ventilator that is designed to promote air exhaust from the conveyance piping.
Each townhome unit contains an individual sub-slab vent system, riser conveyance piping,
monitoring point, and a stationary ventilator. Product specification sheets for the stationary
ventilator and soil gas collector mat are included in Appendix B.

To further enhance sub-slab vapor transmission and collection effectiveness, a uniform layer of
high permeability stone (clean #57) was installed directly below the concrete slab to allow for air
movement beneath the entirety of the slab. Soil gas collector mats were installed within the high
permeability stone layer. The thickness of the high permeability stone around the collector mats
extends a minimum of 2-inches below the mats, and the top of the mat is set flush with the
completed stone layer, or approximately 1-inch below the top of the stone. In areas without soil
gas mat, a minimum thickness of 4 inches of clean #57 stone was installed. In the event the system
needs to be activated with electric fans, one vacuum monitoring point was installed for each
townhome unit to measure the pressure differential between indoor air and the sub-slab, and for
collection of sub-slab soil gas samples. The locations of the monitoring points are depicted in the
as-built drawings provided in Appendix C.

During installation of the VIMS in Building 1007, H&H conducted inspections during various
phases of construction to confirm the VIMS was installed in accordance with the VIMP.
Inspections were completed during the following phases:

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• after installation of sub-slab soil gas collector mat and monitoring points within the gravel
base;
• following placement and sealing of the vapor barrier and prior to pouring the concrete
building slab; and
• after installation of vertical exhaust riser pipe and ventilators.

Based upon inspections completed during the VIMS installation activities, the VIMS was installed
in general accordance with the DEQ-approved VIMP. VIMS details and specifications, and a
VIMS as-built drawing which depicts the VIMS layout are included in Appendix C. A
representative photographic log of the installed VIMS components is provided in Appendix D.

2.2 VIMS Influence Testing
On November 9, 2023, H&H completed influence testing for Building 1007 to evaluate system
sub-slab communication and to confirm that adequate vacuum can be obtained should an active
depressurization system be needed in the future. DEQ considers 4 Pascals (Pa), or 0.016-inches
of water column (in-WC), differential pressure the minimum vacuum needed for an active
depressurization system to effectively treat potential structural vapor intrusion.

H&H connected standard electric radon-style RadonAway RP-145c and Festa Radon AMG Eagle
Extreme fans to the vertical riser piping to model an active depressurization system. Differential
pressure measurements were collected at each vacuum monitoring point using a Dwyer series 475
Mark III Digital manometer (capable of measuring to 0.001 in-WC or 0.25 Pa) to establish baseline
conditions prior to use of the electric fans. Following collection of baseline differential pressure
measurements, the electric fans were turned on and differential pressure measurements were
collected at each riser and monitoring point over varied time intervals.

Results of the influence tests indicated sub-slab vacuum measured at the monitoring points ranged
from 0.045 in-WC to 0.210 in-WC while using the RadonAway RP 145c fan, and from 0.087 in-
WC to 0.427 in-WC when using a higher vacuum Festa Radon AMG Eagle Extreme fan. Both
sets of results demonstrates adequate sub-slab system communication and that sufficient vacuum
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can easily be achieved below the slab of each unit with a standard electric fan. The locations of
the permanent monitoring points (denoted by MP nomenclature) are shown on Sheet VM-2
(Appendix C). The summary table of the influence test results is included in Appendix E.
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3.0 Sub-Slab Soil Gas Assessment Activities

Following successful installation of the VIMS, H&H collected two sub-slab soil gas samples for
laboratory analysis from Building 1007. The sub-slab assessment activities were conducted in
accordance with the DEQ-approved VIMP and DEQ Division of Waste Management (DWM)
Vapor Intrusion Guidance (Guidance) dated March 2018.

3.1 Sub-Slab Soil Gas Sampling
On December 28, 2023, H&H collected two sub-slab soil gas samples from permanent monitoring
points in Building 1007. The sampling was performed following VIMS installation activities and
more than two weeks after installation of the stationary ventilators. The sub-slab soil gas samples
were collected from permanent monitoring point locations MP-1007-31 (sample ID SS-1007-31)
and MP-1007-33 (sample ID SS-1007-33) as shown on VM-2 (Appendix C). One duplicate sub-
slab soil gas sample (SS-1007-DUP) was collected for quality assurance/quality control (QA/QC)
purposes during the event from the SS-1007-33 parent location. The duplicate sample was
collected utilizing a laboratory supplied stainless-steel sampling “T” which allows for the
simultaneous collection of two sub-slab soil gas samples from a single location.

To collect the sub-slab soil gas samples, Teflon sample tubing was attached to a 2-inch expandable
well cap with a sampling port that was secured onto the 2-inch diameter PVC monitoring point.
The tubing was connected to an airflow regulator and laboratory-supplied batch-certified 1-liter
stainless steel Summa canister. The air flow regulator was preset by the laboratory to collect a soil
gas sample at a flow rate no greater than approximately 100 milliliters per minute.

Prior to sample collection, H&H conducted a leak test at each monitoring point by placing a shroud
around the monitoring point, expandable well cap, and sampling train including the Summa
canister. The air within the shroud was flooded with helium gas and concentrations were measured
with a calibrated helium detector. Helium concentrations within the shroud were maintained at
approximately 10% to 12%. A GilAir vacuum pump was connected to the sample tubing outside
of the shroud and used to purge a minimum of three volumes (monitoring point and sample train)
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of soil gas into a Tedlar® bag at each sampling point. The helium gas detector was used to measure
helium concentrations within the Tedlar bag sample to confirm helium concentrations in the
sample were less than 10% of that measured within the shroud. Results of the helium leak checks
indicate that helium was not detected in the purge air above the threshold which indicates
unacceptable short-circuiting at the monitoring points or within the sampling train were not
present. Soil gas sampling field forms completed by sampling personnel are included in
Appendix E.

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

The sub-slab soil gas sample analytical results are summarized in Table 1. The results were
compared to the DEQ DWM Residential Vapor Intrusion Sub-Slab and Exterior Soil Gas
Screening Levels (SGSLs) dated July 2023. The laboratory analytical report with chain of custody
record is provided as Appendix F. The parent and duplicate sample concentrations indicated
comparable concentrations were detected by the laboratory for these samples.

The sub-slab soil gas sample analytical results indicate that multiple compounds were detected
above the laboratory method detection limits (MDLs), but below the respective Residential
SGSLs, in each sample except for the VOC chloroform. Chloroform was detected at
concentrations in samples SS-1007-31 (4.95 μg/m3), SS-1007-33 (31.3 μg/m3), and SS-1007-DUP
(31.3 μg/m3 ) above the Residential SGSL of 4.1 μg/m3. No other compounds exceeded their
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respective Residential SGSL. The chlorinated solvent compounds tetrachloroethene (PCE) and
trichloroethene (TCE) were not detected above the laboratory MDL in either sub-slab soil gas
sample.

Acetone, 2-butanone (methyl ethyl ketone), and tetrahydrofuran were detected at concentrations
up to two orders of magnitude above the other compounds detected in each sample, but each
detection is well below its respective Residential SGSL. Acetone and 2-butanone are two of the
main components in PVC primer, and tetrahydrofuran is one of the main components in PVC glue.
PVC primer and glue are common construction materials used throughout construction of the
townhome units, including on the sub-slab plumbing pipes. Material safety data sheets for PVC
glue and primer used during construction are included as Appendix G.

The DEQ DWM Vapor Intrusion SGSLs are very conservative and based on a target carcinogenic
risk (TCR) for potential carcinogenic risks of 1 x 10-6 and a hazard quotient (HQ) of 0.2 for
potential non-carcinogenic risks. The DEQ and EPA acceptable risk level for potential
carcinogenic risks is a cumulative lifetime incremental cancer risk (LICR) of 1 x 10-4 or less and
the acceptable level for non-carcinogenic risks is a cumulative hazard index (HI) of 1 or less. The
HI is the sum of HQs for each target analyte.

H&H utilized the DEQ Risk Calculator (July 2023) to confirm there are no potential vapor
intrusion risks at unacceptable levels. H&H modeled a worst-case scenario by using the highest
concentrations of any compound detected below Building 1007 in a residential use scenario to
conservatively evaluate potential vapor intrusion risks. The calculated cumulative LICR and HI
values are provided in Table 1, and a copy of the completed DEQ Risk Calculator is provided in
Appendix H.

As shown in Table 1, results of the worst-case risk calculations indicate a calculated cumulative
LICR of 7.8 x 10-6 and a HI value of 0.021. The calculated cumulative residential use LICR and
HI values are well within the DEQ and EPA acceptable levels. These risk calculator results
confirm that compound concentrations detected below the slab do not pose vapor intrusion risks
at unacceptable levels within the townhome units at Building 1007.
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4.0 Methane Gas Screening

During previous geotechnical testing activities in the western portion of the Site, buried debris was
observed in three areas that appeared to be associated with historical filling activities. The debris
was primarily comprised of wood (e.g. plywood, wood planks, etc.), bricks, ceramic tiles, and
organic debris. The debris was excavated and disposed off-site in December 2021 and the
excavations were subsequently backfilled with clean fill material. Following backfilling activities,
H&H measured methane at three temporary methane gas probes (MGP-1, MGP-2, and MGP-3)
installed in the former areas of the observed debris. The methane screening indicated that methane
was detected at up to 0.7% by volume in one methane gas probe, MGP-3, but no methane was
detected in the two other methane gas probes. The methane concentrations were below the
NCDEQ Brownfields Program Threshold Criteria for Methane Site Development threshold of
1.25% by volume. However, as a precautionary measure due to the presence of methane in the
western portion of the Site, methane screening of sub-slab soil gas was conducted on December
28 and 29, 2023, during the pre-occupancy sampling event in accordance with the email request
from the DEQ Brownfields Program Project Manager, Peter Doorn, dated March 25, 2023. The
previous methane assessment activities are documented in the H&H Soil Gas Methane Sampling
Report, dated March 15, 2022, and a summary table of methane concentrations with sample
location maps are included in Appendix A for reference.

The December 28, 2023 methane screening was conducted prior to the sub-slab vapor sample
collection for VOCs (see Section 3.0) to prevent interference of the methane screening with the
purging process for the vapor sample collection. The following day, on December 29, 2023,
additional methane readings were collected. The methane screening was conducted by measuring
methane below the slab using the existing sub-slab monitoring points in the corresponding units.
These points are constructed with 2-inch diameter PVC pipes that were sealed with an expandable
well cap and self-sealing quick-connect fitting. A calibrated Landtec Gem 5000® device was then
connected to the expandable well cap to take initial differential and static pressure readings.
Following collection of the differential pressure readings, a leak check was conducted at each
monitoring point by constructing a shroud around the sampling system and flooding the air within
the shroud with helium gas. Helium concentrations within the shroud were maintained at
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approximately 10-15% at each point. A GilAir vacuum pump was connected to the sample tubing
outside of the shroud and used to purge a minimum of three volumes (monitoring point and sample
train) of soil gas into a Tedlar® bag at each sampling point. The helium concentrations in the
shroud are not expected to have influenced the methane results from within the monitoring points.
The helium gas detector was used to measure helium concentrations within the Tedlar bag sample
to confirm helium concentrations in the sample were less than 10% of that measured within the
shroud. Results of the helium leak checks indicate that helium was not detected above 10% of the
shroud concentration in the purge air which indicates unacceptable short-circuiting at the
monitoring points or within the sampling train were not present. Sampling field forms completed
by sampling personnel are included in Appendix E.

Following subsurface equilibration after approximately 45-60 seconds, the calibrated Landtec
Gem 5000® device was connected to the sample tubing and field measurements of oxygen, carbon
dioxide, carbon monoxide, hydrogen sulfide, barometric and static differential pressure, and
methane (percent by volume and percent lower explosive limit) were collected for each sample
location and recorded by sampling personnel. After completion of the first round of
measurements, H&H capped the points with an airtight valve for a minimum of 24-hours. After
this period, H&H prior collected the second round of readings using the same procedures as
described above.

Results of the methane screening are summarized on Table 2. Methane was not detected in any of
the screening samples. Based on the methane screening below the slab at Building 1007, methane
is not present and thus does not pose a vapor intrusion risk to occupants of Building 1007.

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5.0 Summary and Conclusions

Construction of townhome Building 1007 of the Townes at LoSo development has been completed
at the Blythe Isenhour Brownfields property (Brownfields Project No. 23067-19-060) located in
Charlotte, North Carolina. The Townes at LoSo redevelopment includes construction of 12
townhome buildings at the Brownfield property, and separate reports will be submitted to
document installation of the VIMS in the other buildings.

VIMS Installation and Sub-Slab Soil Vapor Assessment
During construction of Building 1007, H&H conducted VIMS installation inspections to confirm
the system was installed as designed and completed post-installation sub-slab soil gas sampling
activities to evaluate efficacy of the system. The VIMS installation inspections and post-
installation sampling activities were completed in general accordance with the DEQ-approved
VIMP.

Based on the VIMS installation inspections, influence testing, and post-installation sub-slab soil
gas sampling results, the VIMS is effectively mitigating potential vapor intrusion risks from Site
contaminants. The sub-slab soil gas to indoor air risk calculator results confirms that the
cumulative LICR risk and the noncarcinogenic HI risk are within DEQ and EPA acceptable levels.
Based on the evaluation, the analytical samples do not indicate that there is unacceptable vapor
intrusion risk from Site contaminants to the occupants of Building 1007 and no further pre-
occupancy sampling is recommended for this building.

Methane Screening
Methane screening was conducted below the slab in Building 1007. Methane was not detected in
any of the samples and thus does not pose a vapor intrusion risk to occupants of Building 1007.

Post-Occupancy Activities
In accordance with the DEQ approved VIMP, two post-occupancy sub-slab soil gas sampling
events will be completed on an annual basis with the first annual event for Building 1007 expected
to be conducted in late 2024 or early 2025. The post-occupancy sub-slab soil gas sampling will
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include analysis of VOCs by EPA Method TO-15. In accordance with DEQ request, the first post-
occupancy sampling event will also include screening for methane below the slab of the building.
After the first post-occupancy event, the methane data will be evaluated to determine if additional
methane screening would be warranted or if methane screening can be terminated during future
sampling events. Note, depending upon the future sub-slab soil gas analytical data, indoor air
sampling may also be warranted during future monitoring events.

Upon completion of each sampling event, a report will be submitted to DEQ along with an
evaluation of the analytical data and VIMS effectiveness. Based on the post-occupancy analytical
data and in accordance with the Townhome Checklist, a request to reduce sampling to once every
five years, or as otherwise approved by DEQ, may be submitted for DEQ review and approval. In
addition, in accordance with the VIMP, an Operations & Maintenance (O&M) Plan will be
prepared near the end of construction of the Townes at LoSo development which will describe
further on-going maintenance activities for the VIMS as warranted.

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6.0 Engineer’s Certification
According to the DWM Vapor Intrusion Guidance: “Risk-based screening is used to identify sites
or buildings likely to pose a health concern, to identify buildings that may warrant immediate
action, to help focus site-specific investigation activities or to provide support for building
mitigation and other risk management options including remediation.” In addition, this VIMP was
prepared to satisfy the standard vapor intrusion mitigation provisions anticipated to be included in
the Brownfields Agreement. Per the North Carolina Brownfields Property Reuse Act 130A-
310.32, a prospective developer, with the assistance of H&H for this project, is to provide DEQ
with “information necessary to demonstrate that as a result of the implementation of the
brownfields agreement, the brownfields property will be suitable for the uses specified in the
agreement while fully protecting public health and the environment instead of being remediated to
unrestricted use standards.” It is in the context of these risk-based concepts that the H&H
professional engineer makes the following statement:

The Vapor Intrusion Mitigation System (VIMS) detailed herein was 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.

[SEAL]

Trinh DeSa
North Carolina PE (#044470)
Hart & Hickman, PC (#C-1269)
Table 1
Summary of Sub-Slab Soil Gas Analytical Data
Townes at LoSo - Building 1007
Blythe Isenhour
Charlotte, North Carolina
Brownfields Project No. 23067-19-060
H&H Project No. NVR-013
Building Number Screening Criteria
Sample ID SS-1007-31
Sample Date
Units
VOCs (TO-15)
Acetone 366 407 389 NE
Benzene 0.444 J <0.073 0.230 J 12
Carbon Disulfide 2.08 B,J 1.86 B,J 1.75 B,J 4,900
Carbon Tetrachloride <0.155 0.572 J 0.610 J 16
Chloroform 4.95 31.3 31.3 4.1
Cyclohexane 3.90 <0.161 <0.161 42,000
Dichlorodifluoromethane (Freon 12)3.06 3.13 3.02 700
Ethylbenzene <0.106 0.894 J 1.05 J 37
1,1,2-Trichloro-1,2,2-trifluoroethane 0.628 J 0.620 J 0.636 J 35,000
Heptane 0.344 J <0.143 <0.143 2,800
Hexane 1.50 J <0.047 <0.047 4,900
Isopropanol 2.25 B,J 1.09 B,J <0.139 1,400
2-Butanone (MEK)1,010 1,360 1,300 35,000
Methylene Chloride 2.08 2.24 2.11 3,400
Styrene 0.387 J <0.124 <0.124 7,000
Tetrachloroethylene <0.181 <0.181 <0.181 280
Tetrahydrofuran 8.20 8.10 8.46 14,000
Toluene 1.89 0.459 J 0.459 J 35,000
Trichloroethylene <0.199 <0.199 <0.199 14
Trichlorofluoromethane (Freon 11)1.94 J 1.87 J 1.84 J NE
1,2,4-Trimethylbenzene 0.427 J <0.110 0.353 J 420
o-Xylene 0.334 J 1.10 J 1.12 J 700
m&p-Xylene 0.790 J 3.44 J 3.78 J 700
Xylene (Total)1.12 J 4.54 J 4.90 J 700
DEQ Risk Calculator (2)Acceptable Risk Levels
Cumulative LICR <1.0 x 10-4
Cumulative HI <1.0
Notes:
1) North Carolina Department of Environmental Quality (NCDEQ) Residential Sub-Slab and Exterior Soil Gas Screening Levels
(SGSLs) dated July 2023 and based on a TCR of 1 x 10-6 and a THQ of 0.2.
2) NCDEQ Cumulative Risk Calculator dated July 2023.
EPA analytical method shown in parenthesis.
Compound concentrations are reported to the laboratory method detection limit (MDL).
Only compounds detected in at least one sample and select compounds are shown in the table above. Refer to laboratory
analytical report for all compounds.
Compound concentrations are reported in micrograms per cubic meter (µg/m3)
Worst case risk calculations include highest the concentration of any compound detected in any sample.
Bold value indicates an exceedance of the Residential SGSL.
NE = not established; VOCs = volatile organic compounds; TCR = target cancer risk; THQ = target hazard quotient
LICR = lifetime incremental cancer risk; HI = noncarcinogenic hazard index
B = analyte was detected in laboratory blank.
J = detected concentration is above the laboratory method detection limit, but below the laboratory calibrated reporting limit
resulting in a laboratory estimated value.
0.021
7.8 x 10-6
Worst Case Residential - Soil Gas to Indoor Air
Residential SGSLs(1)
Building 1007
12/28/2023
µg/m3
SS-1007-33 / SS-1007-DUP
https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-013 Blythe-Isenhour/VIMS Install Reports/Building 1007/Tables & Risk Calc/Table 1 - Bldg 1007 Data Summary
Table 1
Hart & Hickman, PC
Table 2 Summary of Methane Screening DataTownes at LoSo - Building 1007Blythe Isenhour Charlotte, North CarolinaBrownfields Project No. 23067-19-060H&H Project No. NVR-013% % LELBarometric (in. Hg)Static(in. H₂O)12/28/2023 11:20 21.2 0.1 1.0 0.0 0.0 0.0 29.02 -0.0312/29/2023 16:04 21.8 0.1 0.0 0.0 0.0 0.0 28.95 0.0012/28/2023 11:23 21.1 0.1 0.0 0.0 0.0 0.0 29.03 0.0212/29/2023 16:11 21.9 0.1 0.0 0.0 0.0 0.0 28.96 0.0212/28/2023 11:39 21.4 0.1 0.0 0.0 0.0 0.0 29.04 0.0012/29/2023 16:25 21.4 0.1 0.0 0.0 0.0 0.0 28.95 0.01Notes:Positive differential pressure values indicate that subsurface pressure is greater than ambient air pressure. O2= Oxygen; CO2 = Carbon Dioxide; CO = Carbon Monoxide; H2S = Hydrogen Sulfide;% = Percent By Volume of Air; LEL = Lower Explosive Limit; in Hg = Inch of Mercury; in H₂O = Inch of WaterCO (ppm)Sample ID Sample Date Sample TimeO2 (%) CO2 (%)Building 1007 Unit 31Building 1007 Unit 33Building 1007 Unit 33 (Duplicate)H2S (ppm)Methane Pressurehttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-013 Blythe-Isenhour/VIMS Install Reports/Building 1007/Tables & Risk Calc/Table 2 - Bld. 1007 Methane Data2/7/2024Table 2 (Page 1 of 1)Hart & Hickman, PC
USGS The National Map: National Boundaries Dataset, 3DEP ElevationProgram, Geographic Names Information System, National HydrographyDataset, National Land Cover Database, National Structures Dataset,and National Transportation Dataset; USGS Global Ecosystems; U.S.
Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data;U.S. Department of State Humanitarian Information Unit; and NOAANational Centers for Environmental Information, U.S. Coastal ReliefModel. Data refreshed May, 2020.
SITE LOCATION MAP
OLD PINEVILLE TOWNS PHASE II
4920 OLD PINEVILLE ROADCHARLOTTE, NORTH CAROLINA
DATE: 10-29-21
JOB NO: NVR-013
REVISION NO: 0
FIGURE NO: 1
2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology
TITLE
PROJECT
0 2,000 4,000
SCALE IN FEET
Path: \\HHFS01\Redirectedfolders\sperry\My Documents\ArcGIS\PROJECTS\NVR-013\Figure-1.mxdN
U.S.G.S. QUADRANGLE MAP
CHARLOTTE, NORTH CAROLINA 2013
QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC)
SITE
REVISION NO. 0
JOB NO. NVR-013
DATE: 02-06-24
FIGURE NO. 2
BLYTHE ISENHOUR (TOWNES AT LOSO)
4920 OLD PINEVILLE ROAD
CHARLOTTE, NORTH CAROLINA
SITE DEVELOPMENT PLAN
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
LEGEND
SITE PROPERTY BOUNDARY
PARCEL BOUNDARY
PROPOSED PHASE II BUILDING FOOTPRINT
UNIT NUMBER44
33
ANSTON DR
I
V
EBIRCHAM DRIVETHORNDALE LANEOLD PINEVILLE ROADNOTES:
1.AERIAL IMAGERY OBTAINED FROM MECKLENBURG
COUNTY GIS (2023).
2.DEVELOPMENT PLAN BASED ON SITE PLAN PROVIDED BY
BOHLER ENGINEERING (STAMPED 09/09/21).32
31
36
35
34
39
38
37
42
41
40
45
44
43
48
47
46
8
7
5
4
3
2
1
6
91011121314151617181920212223
24252627282930
BIRCHAM DRIVECLEBURNE C
O
U
R
T COLQUITT COURTTHORNDALE LANEBUILDING 1006
BUILDING 1005
BUILDING 1004
BUILDING 1003
BUILDING 1002
BUILDING 1001
BUILDING 1012
BUILDING 1011
BUILDING 1010
BUILDING 1009
BUILDING 1008
BUILDING 1007ATLANTIS LANES:\AAA-Master Projects\NVR, Inc\NVR-013 Blythe-Isenhour\Figures\VIMS Site Map\Site Plan.dwg

Appendix A
Historical Data Summary Tables and Sample Location Maps

Table 1Summary of Soil Analytical DataOld Pineville Towns Phase IIBlythe Isenhour Brownfields Property Charlotte, North CarolinaH&H Job No. NVR-013Evaluation AreaDispenser Island Sample ID1-W 1-E HA-L1 HA-L2 HA-D1 1 2 3 B-1 (1) B-1 (3) Date9/24/2003 10/14/2003 9/24/2003Depth (ft bgs)8855513Sample TypeRange MeanUnitsPCBs (8082)NA NA NA NA NANANA NA NA NA -- -- -- -- -- --TPH (3550/5030) DRO <2 <2 NA NA NANaNA NA4,10079 100-- -- -- -- --GRO<2 <2 <10 <10 <10 NA NA NA3402.8 50-- -- -- -- --Oil and Grease (9071A)NA NA NA NA NA<50120 100NA NANE-- -- -- -- --VOCs (8260B)AcetoneNA NA NA NA NA NA NA NA NA NA --12,000 140,000-- -- --n-ButylbenzeneNA NA NA NA NA NA NA NA NA NA --780 12,000-- -- --sec-Butylbenzene NA NA NA NA NA NA NA NA NA NA --1,600 23,000-- -- --EthylbenzeneNA NA NA NA NA NA NA NA NA NA --6.1 27-- -- --Isopropylbenzene (Cumene)NA NA NA NA NA NA NA NA NA NA --410 2,100-- -- --p-Isopropyltoluene NA NA NA NA NA NA NA NA NA NA --NE NE-- -- --4-Methyl-2-pentanone (MIBK)NA NA NA NA NA NA NA NA NA NA --7,000 30,000-- -- --Naphthalene NA NA NA NA NA NA NA NA NA NA --2.1 8.8-- -- --n-PropylbenzeneNA NA NA NA NA NA NA NA NA NA --780 5,100-- -- --1,2,4-TrimethylbenzeneNA NA NA NA NA NA NA NA NA NA --63 370-- -- --1,3,5-TrimethylbenzeneNA NA NA NA NA NA NA NA NA NA --56 320-- -- --SVOCs (8270D)NaphthaleneNA NA NA NA NA NA NA NA NA NA --2.1 8.8-- -- --Metals (6020/7471/7196A)ArsenicNA NA NA NA NA NA NA NA NA NA --0.68 3--1.0 - 18 4.8BariumNA NA NA NA NA NA NA NA NA NA --3,100 47,000--50 - 1,000 356CadmiumNA NA NA NA NA NA NA NA NA NA --14 200--1.0 - 10 4.3Chromium (total)NA NA NA NA NA NA NA NA NA NA --NE NE--7.0 - 300 65Hexavalent ChromiumNA NA NA NA NA NA NA NA NA NA --0.31 6.5--NS NSTrivalent ChromiumNA NA NA NA NA NA NA NA NA NA --23,000 350,000--NS NSLeadNA NA NA NA NA NA NA NA NA NA --400 800--ND - 50 16MercuryNA NA NA NA NA NA NA NA NA NA --2.3 9.7--0.03 - 0.52 0.121SeleniumNA NA NA NA NA NA NA NA NA NA --78 1,200-- <0.1 - 0.80.42SilverNA NA NA NA NA NA NA NA NA NA --78 1,200--ND - 5.0 NSMetals (6010D TCLP)ChromiumNA NA NA NA NA NA NA NA NA NA -- -- --5 mg/L-- --Notes:1) NC Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Underground Storage Tank (UST) Section Action Levels dated July 20162) NC DEQ Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) dated July 20203) Environmental Protection Agency (EPA) Maximum Concentration of Contaminants for Toxicity Characteristic Leaching Procedure (TCLP) regulatory level dated November 20044) Range & mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005. Cd and Ag concentrations were taken from Southeastern & Conterminous US soils.Concentrations are reported in milligrams per kilogram (mg/kg).Concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.Aside from metals, only those compounds detected in at least one sample are shown in the table above.Bold values exceed the UST Action Levels. VOCs = Volatile Organic Compounds; SVOCs = Semi-Volatile Organic Compounds; PCBs = Polychlorinated Biphenyls; ft bgs = Feet Below Ground Surface; mg/L = Milligrams per Liter NE = Not Established; NS= Not Specified; NA = Not Analyzed; -- = Not Applicable; BDL = Below Laboratory Method Detection Limits; ND = Not Detected; SGP = Soil Gas Point boring; AST = Aboveground Storage Tank; UST = Underground Storage TankJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. Screening Criteria UST Action Level (1) Residential PSRGs (2)Industrial/ Commercial PSRGs (2)Regional Background Metals in Soil (4)Maximum Concentraion for TCLP (3)Tank Spill Area 5/28/2003Grab Grab3-4GrabProduct Line Former Diesel Pump 8/8/2003mg/kg4/27/1990UST Basinhttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-013 Blythe-Isenhour/Tables/Blythe Isenhour_Tables 3-19-02.xlsx11/1/2021Table 1 (Page 1 of 2)Hart & Hickman, PC
Table 1Summary of Soil Analytical DataOld Pineville Towns Phase IIBlythe Isenhour Brownfields Property Charlotte, North CarolinaH&H Job No. NVR-013Evaluation AreaStorage ShedSample IDCOMP-1 SB-1A COMP-2 SB-2A SB-DUP SGP-5 BG-1 BG-2Date3/4/2020 3/4/2020 3/4/2020 3/4/2020 3/3/2020 3/3/2020Depth (ft bgs)2-3 2-3 2-3 2-4 0-3 0-3Sample Type4-point Grab 3-point GrabRange MeanUnitsPCBs (8082)NAALL BDLNANANANANANA------ ------TPH (3550/5030) DRONA NA NA NA NA NA NA NA100-- -- -- -- --GRONA NA NA NA NA NA NA NA50-- -- -- -- --Oil and Grease (9071A)NA NA NA NA NA NA NA NANE-- -- -- -- --VOCs (8260B)AcetoneNA0.0166 JNA0.0782 J 0.0144 J 0.0592 JNA NA --12,000 140,000-- -- --n-ButylbenzeneNA <0.0027 NA <0.0029 <0.00280.0488NA NA --780 12,000-- -- --sec-Butylbenzene NA <0.002 NA <0.0022 <0.00210.0739NA NA --1,600 23,000-- -- --EthylbenzeneNA <0.001 NA <0.0011 <0.00100.0015 JNA NA --6.1 27-- -- --Isopropylbenzene (Cumene)NA <0.0014 NA <0.0015 <0.00140.0674NA NA --410 2,100-- -- --p-Isopropyltoluene NA <0.0023 NA <0.0025 <0.00240.143NA NA --NE NE-- -- --4-Methyl-2-pentanone (MIBK)NA <0.0036 NA <0.0038 <0.00360.156NA NA --7,000 30,000-- -- --Naphthalene NA <0.0041 NA <0.0043 <0.00420.0131NA NA --2.1 8.8-- -- --n-PropylbenzeneNA <0.0016 NA <0.0017 <0.00160.163NA NA --780 5,100-- -- --1,2,4-TrimethylbenzeneNA <0.0019 NA <0.0020 <0.001918.3NA NA --63 370-- -- --1,3,5-TrimethylbenzeneNA <0.0016 NA <0.0017 <0.00167.0NA NA --56 320-- -- --SVOCs (8270D)Naphthalene<0.0986 NA <0.0992 NA NA0.110 JNA NA--2.1 8.8-- -- --Metals (6020/7471/7196A)Arsenic 2.46NA3.19NA NA1.73 3.676.47--0.68 3--1.0 - 18 4.8Barium 116NA30.6NA NA7.81 48.616.8--3,100 47,000--50 - 1,000 356Cadmium<0.110 NA <0.101 NA NA <0.109 <0.104<0.103--14 200--1.0 - 10 4.3Chromium (total) 32.1NA31.4NA NA25.1 47.4122--NE NE--7.0 - 300 65Hexavalent Chromium<0.349 NA <0.321 NA NA <0.3480.415 J0.584 J--0.31 6.5--NS NSTrivalent Chromium 32.1NA31.4NA NA25.1 47.0121.4--23,000 350,000--NS NSLead 7.93NA11.0NA NA7.34 15.16.44--400 800--ND - 50 16Mercury 0.0585NA0.0675NA NA0.0478 0.08420.139--2.3 9.7--0.03 - 0.52 0.121Selenium 0.818NA0.523 JNA NA0.581 J 0.9880.673--78 1,200-- <0.1 - 0.80.42Silver<0.212 NA <0.195 NA NA <0.211 <0.202<0.200--78 1,200--ND - 5.0 NSMetals (6010D TCLP) Chromium NA NA NA NA NA NA NA<0.100 mg/L-- -- --5 mg/L-- --Notes:1) NC Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Underground Storage Tank (UST) Section Action Levels dated July 20162) NC DEQ Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) dated July 20203) Environmental Protection Agency (EPA) Maximum Concentration of Contaminants for Toxicity Characteristic Leaching Procedure (TCLP) regulatory level dated November 20044) Range & mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005. Cd and Ag concentrations were taken from Southeastern & Conterminous US soils.Concentrations are reported in milligrams per kilogram (mg/kg).Concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.Aside from metals, only those compounds detected in at least one sample are shown in the table above.Bold values exceed the UST Action Levels. VOCs = Volatile Organic Compounds; SVOCs = Semi-Volatile Organic Compounds; PCBs = Polychlorinated Biphenyls; ft bgs = Feet Below Ground Surface; mg/L = Milligrams per Liter NE = Not Established; NS= Not Specified; NA = Not Analyzed; -- = Not Applicable; BDL = Below Laboratory Method Detection Limits; ND = Not Detected; SGP = Soil Gas Point boring; AST = Aboveground Storage Tank; UST = Underground Storage TankJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. Residential PSRGs (2)Industrial/ Commercial PSRGs (2)Regional Background Metals in Soil (4)UST Action Level (1) Maximum Concentration for TCLP (3) mg/kgCompositeConcrete Storage Pad AST Containment Area Background 3/4/20202-3GrabScreening Criteria https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-013 Blythe-Isenhour/Tables/Blythe Isenhour_Tables 3-19-02.xlsx11/1/2021Table 1 (Page 2 of 2)Hart & Hickman, PC
Table 2Summary of Groundwater Analytical DataOld Pineville Towns Phase IIBlythe Isenhour Brownfields Property Charlotte, North CarolinaH&H Job No. NVR-013Sample LocationBackground Cross-Gradient DowngradientSample IDTMW-2 TMW-3 TMW-4DateUnitsVOCs (8260B)Toluene<0.24 <0.240.28 J 1.7<0.24600 3,800 16,000SVOCs (8270D)All BDL All BDL All BDL All BDL All BDL -- -- --Metals (6010D/7470A)Arsenic0.646 J <0.250 <0.2500.317 J<0.25010-- --Barium52.8 53.4 94.0 29.1 11.5700-- --Cadmium<0.160 <0.1600.173 J<0.160 <0.1602-- --Chromium (Total) 1.12 J 1.12 J 0.861 J 2.32 0.635 J10-- --Lead<0.240 <0.240 <0.240 <0.240 <0.24015-- --Mercury<0.0490 <0.0490<0.0490<0.0490<0.04901 0.18 0.75Selenium0.410 J<0.3800.393 J<0.380 <0.38020-- --Silver<0.310 <0.310 <0.310 <0.310 <0.31020-- --Notes:1) NC Department of Environmental Quality (DEQ) 15A North Carolina Administrative Code 02L.0202 Groundwater Quality Standard (2L Standard) dated April 20132) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated June 2021Concentrations are reported in micrograms per liter (μg/L).Concentrations are reported to the laboratory method detection limits. Laboratory analytical methods are shown in parentheses.Aside from metals, only those compounds detected in at least one sample are shown in the table above.TMW = Temporary Monitoring Well; DUP = Duplicate; VOCs = Volatile Organic Compounds; SVOCs = Semi-Volatile Organic CompoundsBDL = Below Laboratory Method Detection Limits; -- = Not ApplicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.1/22/2019µg/L µg/LConcrete Storage PadTMW-1/TMW-DUPScreening Criteria 2L Standard (1)Residential GWSLs (2)Non-Residential GWSLs (2)https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-013 Blythe-Isenhour/Tables/Blythe Isenhour_Tables 3-19-02.xlsx10/28/2021Table 2 (Page 1 of 1)Hart & Hickman, PC
Table 3Summary of Soil Gas Analytical DataOld Pineville Towns Phase IIBlythe Isenhour Brownfields Property Charlotte, North CarolinaH&H Job No. NVR-013Sample LocationSample IDSGP-1 SGP-2 SGP-3 SGP-4 SGP-5 SGP-6Date3/5/2020 3/5/2020 3/5/2020 3/9/2020 3/9/2020 3/9/2020Depth (ft bgs)55105812UnitsVOCs (TO-15)Acetone<6.663 31 25<66 <6.624 24220,000 2,700,000Benzene1.2 3.1 2.7 0.37 J314.0 3.3 3.312 1601,3-Butadiene<0.32 <0.32 <0.32 <0.32 <3.2 <0.329.4 9.43.1 412-Butanone (MEK)8.7 J 6.1 J 5.4 J 8.0 J<113.1 J 3.9 J 4.0 J35,000 440,000Carbon Disulfide<0.43 <0.437.1<0.43 <4.3110 7.5 7.44,900 61,000Chloroform0.64 J 1.0<0.36 <0.36 <3.6 <0.36 <0.36 <0.364.1 53Cyclohexane6.5<0.495.8 11 79 12<0.49 <0.4942,000 530,000Dichlorodifluoromethane (Freon 12)<0.431.8 1.6<0.43 <4.3 <0.431.7 1.8700 8,800Ethanol180 59 57 140<6735 30 26NE NEEthyl Acetate<0.54 <0.54 <0.5469<5.4 <0.54 <0.54 <0.54490 6,100Ethylbenzene2.7 7.0 9.9 1.53705.7 4.7 4.637 4904-Ethyltoluene1.1<0.6063 2.4 1,500<0.601.3 1.3NE NEHeptane41 67 79<0.48230 460 84 842,800 35,000Hexane4.7 J<1.2 <1.2 <1.2 <1227 J<1.28.5 J4,900 61,000Isopropanol<0.90 <0.908.0 J 14 J<9.0 <0.90 <0.90 <0.901,400 18,000Methylene Chloride3.7 J<0.844.0 J<0.84 <8.4 <0.84 <0.84 <0.844,200 53,0004-Methyl-2-pentanone (MIBK)<0.43 <0.43 <0.432.7<4.3 <0.43 <0.43 <0.4321,000 260,000Naphthalene<0.80 <0.80220 V-055.1 V-05<8.00.84 J, V-05<0.80 <0.802.8 36Propene<0.64 <0.644.8 J<0.64 <6.4100 110 110NE NETetrachloroethylene1.8 3.9 2.0<0.75 <7.5140 1.8 4.1280 3,500Toluene16 47 52 2.6 55 53 35 3635,000 440,000Trichlorofluoromethane (Freon 11)<0.851.1 J 1.1 J 1.5 J<8.546 2.2 J 2.3 JNE NE1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)<1.2 <1.2 <1.22.2 J<123.2 J<1.2 <1.235,000 440,0001,2,4-Trimethylbenzene3.3 6.6 360 7.54,200<0.634.6<0.63420 5,3001,3,5-Trimethylbenzene1.0 1.9 150 5.93,700<0.621.3 1.2420 5,300m&p-Xylene9.7 26 29 4.3 470 17 17 17700 8,800o-Xylene3.0 8.4 13 2.1 360 4.2 5.7 5.4700 8,800Notes:1) NC Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Vapor Intrusion Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) dated July 2020 Compound concentrations are reported in micrograms per cubic meter (μg/m3).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.Only those compounds detected in at least one sample are shown in the table above.Bold indicates concentration exceeds Residential SGSL.Underlined indicated concentration exceeds Non-Residential SGSL. VOCs = volatile organic compounds; ft bgs= feet below ground surface; NE = Not EstablishedJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. V-05 = Continuing calibration verification (CCV) did not meet method specifications and was biased on the low side for this compound.µg/m3Northern Townhome Footprint Southern Townhome FootprintSGP-7 / SG-DUP123/5/2020Eastern Townhome FootprintScreening Criteria Residential SGSLs (1)Non-Residential SGSLs (1)https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-013 Blythe-Isenhour/Tables/Blythe Isenhour_Tables 3-19-02.xlsx11/1/2021Table 3 (Page 1 of 1)Hart & Hickman, PC
Table 1Summary of Methane Gas MeasurementsBlythe IsenhourCharlotte, North CarolinaH&H Job No. BOU-014% % LELBarometric (in. Hg)Static (in. H₂O)1/17/2022 10:1621.70.30.00.00.00.028.85 -0.021/18/2022 15:1318.30.80.00.00.00.029.35 -0.041/17/2022 10:0621.40.60.00.00.00.028.85 -0.011/18/2022 15:0818.00.60.00.00.00.029.34 -0.041/17/2022 10:314.65.90.00.00.714.028.860.001/18/2022 14:5810.05.00.00.00.12.029.340.041/17/2022 10:2121.90.60.00.00.00.028.860.001/18/2022 15:2218.50.50.00.00.00.029.340.00Notes:1)MGP-DUP collected at ethane gas probe MGP-2.Positive static pressure values indicate that subsurface pressure is greater than ambient air pressure.O2= Oxygen; CO2 = Carbon Dioxide; CO = Carbon Monoxide; H2S = Hydrogen Sulfide;in H₂O = Inches of Water; % = Percent By Volume of AirMGP-DUP1MGP-2MethanePressureSample ID Sample Date Sample TimeH2S (%)CO (%)O2 (%)MGP-1MGP-3CO2 (%)https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Boulevard Realty Estate Advisors (BOU)/BOU-014 4920 Old Pineville Rd/Supplemental Methane Sampling/Tables/Methane_Tables.xlsx2/8/2022Table 1 (Page 1 of 1)Hart & Hickman, PC
SGP-2
SGP-1
SGP-4
TMW-4/BG-2
1
2
3 TMW-1
SB-1D
SB-1C
SB-1B
COMP-1
SB-2A
SB-1A
TMW-3
SGP-7
TMW-2/BG-1
SGP-6
SGP-3
SGP-5
B-1
COMP-2
SB-2B SB-2C
1-E
HA-L1
HA-L2
1-W
HA-D1
REVISION NO. 0
JOB NO. NVR-013
DATE: 10-29-21
FIGURE NO. 2
OLD PINEVILLE TOWNS PHASE II
4920 OLD PINEVILLE ROAD
CHARLOTTE, NORTH CAROLINA
SITE MAP
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
720
AST CONTAINMENT AREA OLD PINEVILLE ROADNOTES:
1.SOIL BORINGS 1-W AND 1-E WERE COLLECTED BY
AQUATERRA IN APRIL 1990.
2.SOIL BORING B-1 WAS ADVANCED BY MACTEC IN
APRIL 2003.
3.SOIL BORINGS 1 THROUGH 3 WERE ADVANCED BY
MACTEC IN MAY 2003.
4.SOIL BORINGS HA-L1, HA-L2, AND HA-D1 WERE
ADVANCED BY FROELING & ROBERTSON, INC. IN
SEPTEMBER AND OCTOBER 2003.
5.PARCEL BOUNDARIES OBTAINED FROM
MECKLENBURG COUNTY GIS 2019.
6.ELEVATION CONTOURS OBTAINED FROM
MECKLENBURG COUNTY LIDAR, 2012.
7.PROPOSED REDEVELOPMENT PLAN WAS PREPARED
BY BOHLER ENGINEERING NC, PLLC AND PROVIDED
BY THE PROSPECTIVE DEVELOPER.
8.FT. MSL = FEET ABOVE MEAN SEA LEVEL
AST = ABOVEGROUND STORAGE TANK
UST = UNDERGROUND STORAGE TANK
BPN = BROWNFIELDS PROJECT NUMBER
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
LYNX LIGHT RAIL
PARCEL BOUNDARY
2' ELEVATION CONTOURS (FT. MSL)
PROPOSED BUILDING FOOTPRINT
SOIL BORING
TEMPORARY MONITORING WELL
CO-LOCATED TEMPORARY MONITORING
WELL AND SOIL BORING
ALIQUOT SOIL BORING LOCATION
TEMPORARY SOIL GAS MONITORING POINT
CO-LOCATED TEMPORARY SOIL GAS
MONITORING POINT AND SOIL BORING
B-1
SELF STORAGE FACILITY
(4914 OLD PINEVILLE ROAD)
CONCRETE PAD:
FORMER WASTE
STORAGE AND
SOLIFICATION AREA
722 7
2
4
7
2
6
728 726724718716714712720
OLD PINEVILLE ROAD
BROWNFIELDS PROPERTY
FORMER QUEEN CITY BOILER
BPN 10061-06-060
(4928 OLD PINEVILLE ROAD)
AREA OF FORMER
UST SYSTEM
S:\AAA-Master Projects\NVR, Inc\NVR-013 Blythe-Isenhour\Figures\Site and Surround Map.dwg, FIG.2 102921, 10/29/2021 3:56:28 PM, sperry
REVISION NO. 0
JOB NO. BOU-014
DATE: 11-9-21
FIGURE NO. 3
BLYTHE ISENHOUR
4920 OLD PINEVILLE ROAD
CHARLOTTE, NORTH CAROLINA
TRENCH AND TEST PIT LOCATION MAP
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
FORMER AST
CONTAINMENT AREA OLD PINEVILLE ROADNOTES:
1.AERIAL IMAGERY OBTAINED FROM MECKLENBURG
COUNTY GIS, 2020.
2.LIMITS OF THE 2003 EXCAVATION OBTAINED FROM
THE SOIL CLEANUP REPORT PREPARED BY MACTEC
AND DATED JUNE 20, 2003.
3.TRENCH AND TEST PIT SCREENING ACTIVITIES
WERE COMPLETED BY H&H AND GEOSCIENCE ON
DECEMBER 30, 2020.
SELF STORAGE FACILITY
(4914 OLD PINEVILLE ROAD)
OLD PINEVILLE ROAD
BROWNFIELDS PROPERTY
FORMER QUEEN CITY BOILER
BPN 10061-06-060
(4928 OLD PINEVILLE ROAD)
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
LYNX LIGHT RAIL
PARCEL BOUNDARY
LIMITS OF 2003 EXCAVATION
TRENCH/TEST PIT LOCATION WITH
SECTION NUMBER
APPROXIMATE LOCATION OF DEBRIS
FORMER CONCRETE PAD
AREA OF FORMER
UST SYSTEM
A B
C
D
TEST PIT E
1
2
3
1
2
3
1 2 3 4
1 2 3 4
A 1
S:\AAA-Master Projects\Boulevard Realty Estate Advisors (BOU)\BOU-014 4920 Old Pineville Rd\Additional Brownfields Assessment\Work Plan\Figures\Figures_20211109.dwg, FIG 3, 11/10/2021 7:42:41 AM, shaynes
REVISION NO. 0
JOB NO. BOU-014
DATE: 2-8-22
FIGURE NO. 4
BLYTHE ISENHOUR
4920 OLD PINEVILLE ROAD
CHARLOTTE, NORTH CAROLINA
SAMPLE LOCATION MAP
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 GeologyOLD PINEVILLE ROADNOTES:
1. AERIAL IMAGERY OBTAINED FROM MECKLENBURG
COUNTY GIS, 2020.
2. LIMITS OF THE 2003 EXCAVATION OBTAINED FROM
THE SOIL CLEANUP REPORT PREPARED BY MACTEC
AND DATED JUNE 20, 2003.
SELF STORAGE FACILITY
(4914 OLD PINEVILLE ROAD)
OLD PINEVILLE ROAD
BROWNFIELDS PROPERTY
FORMER QUEEN CITY BOILER
BPN 10061-06-060
(4928 OLD PINEVILLE ROAD)
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
LYNX LIGHT RAIL
PARCEL BOUNDARY
LIMITS OF 2003 EXCAVATION
APPROXIMATE LOCATION OF DEBRIS
APPROXIMATE EXTENT OF
EXCAVATION AREA
METHANE GAS PROBE LOCATION
AREA OF FORMER
UST SYSTEM
FORMER AST
CONTAINMENT AREAFORMER CONCRETE PAD
MGP-1
MGP-2
MGP-3
S:\AAA-Master Projects\Boulevard Realty Estate Advisors (BOU)\BOU-014 4920 Old Pineville Rd\Additional Brownfields Assessment\Work Plan\Figures\Figures_20211109.dwg, FIG 4, 11/10/2021 8:08:57 AM, shaynes

Appendix B
Product Specifications

Separation Page
Intentionally Left Blank
Active Ventilation Products Inc
800-Roof-Vent (766-3836) • 845-565-7770roofvents.com • [e-mail]
Aura PVC Pipe Cap
Model Number: AV-3-PVC | 3” Diameter
• Vent Pipe Cap ventilates out vapors and particulates from the PVC pipe
• Used exclusively to cover PVC pipes
• Suitable for all climate zones
• Designed to prevent rain, snow and wildlife from entering the PVC pipe
• Constructed of durable rust-free aluminum
• Colors are available
• 5 year warranty
Dimensions & Specifications
CFM Performance
Product Weight
1 lb
Net Free Vent Area
7
4 mph 26
5.6 mph 38
7.4 mph 51
9.8 mph 59
11 mph 62
0.05
(sq. inches)(sq. feet)
Separation Page
Intentionally Left Blank
SOIL GAS COLLECTOR MAT
Installation Guide
Radon Ready New Construction
Time-saving, low-cost solution
Easy Installation
Reduce Liability!
Used in all 50 states and
Internationally
Complian under multiple codes:
AARST-ANSI, ASTM,
IRC Appendix F,
EPA, HUD, and more!
Simple, modern solutions for soil
gases: radon, vapor, and VOCs
www.RadonMat.comPhotos, videos, & more @
MADE IN THE USA
SOIL GAS COLLECTOR MAT FOR RADON READY NEW CONSTRUCTION
According to the US EPA’s model stan-dards for radon control systesm in new building construction, a means for col-lecting soil gas should be installed be-neath the slab.
More and more mitigators and buildiers are using PDS’ soil gas collector mat because its installation does not entail any special coordination with plumb-ers or other site contractors. Low pro-file mat saves time as it removes the need for trenching. Just lay radon mat down around the inside perimeter of the foundation, secure it with spikes or landscaping staples, and pour the con-crete.
SGC mat is superior to other mat sys-tems because of its thickness and it has a geotextile fabric cloth surround-ing the entire mat material. This fea-ture eliminates the ened to lay a plas-tic barrier or sheet on top of the mat to protect the matrix. Using plastic sheeting can cause concrete cracking due to differential dewatering. The full fabric design greatly enhances both the installation as well as the quality of the concrete slab. When SGC mat is in-stalled below the slab, you’re providing an airspace that intercepts radon--and other soil gases and vapors--before it seeps into the building through the slab. SGC mat also works well as a soil gas collector beneath crawlspace bar-rier due to its low-profile.
WHY & HOW IT WORKS
The matting is a one inch high by twelve inch wide matrix enveloped in a geotextile filter fabric. 90% of the geomatrix is airspace, which means soil gas has room to move to the col-lection point. This creates incredible pressure field extension for post con-struction system activation. The mat can support concrete without com-pressing, yet is extremely lightweight and easy to handle.
This system allows for radon to flow through teh filter fabric and into the airspace. The airspace does not clog because the filter fabric retains teh underlying gravel and soil. The natural airflow through the mat then channels the radon to the T riser to pipe connec-tion. From there, hazardous gas can be vented safely through the roof of the building.
Another key element of a soil gas col-lection system is attaching the 4” riser to the mat, such that airflow is not restricted at this critical juncture. The soil gas T riser is unique as it has three ports, two redundant mat entries and one PVC connection to outside air. This unique fitting connects all three sides without special connections or fittings. common duct tape and caulk does the trick. 2

Appendix C
VIMS As-Built Drawings

VIMS VAPOR BARRIER AND BASE COURSE1
BASE COURSE - CLEAN #57 STONE
MIN 4" THICK BENEATH VIMS VAPOR BARRIER
VAPOR BARRIER (SEE SPECIFICATION #4)
CONCRETE FLOOR SLAB
SUBBASE
NTSVM1
SECTION THROUGH TURNED DOWN SLAB AT DRIVEWAY4
NTSVM1
VAPOR BARRIER SEALED TO CONCRETE PER
MANUFACTURER INSTRUCTIONS.
GARAGE
DRIVEWAY
STUD WALL OR EXTERNAL WALL
(NOT PRESENT IN ALL LOCATIONS)
BASE COURSE
VIMS SUB-SLAB VENT2
NTSVM1
SUBBASE
RYAN HOMES, AN NVR,
INC COMPANY
10710 SIKES PLACE
SUITE 200
CHARLOTTE, NORTH
CAROLINA 28277
VAPOR MITIGATION
PLAN PREPARED BY
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
PROFESSIONAL APPROVAL / SEAL
H&H NO. NVR-013
VAPOR
INTRUSION
MITIGATION
SYSTEM PLAN
SECTION
DETAILS
VM-1
3" SCH 40 PVC RISER
LOCATION FOR ELECTRICAL JUNCTION BOX FOR
FUTURE VACUUM FAN IN ENCLOSED ATTIC
VIMS STATIONARY VENTILATOR EXHAUST9
NTSVM1
3" HEAVY DUTY NO HUB COUPLING
3" STATIONARY VENTILATOR
(ACTIVE VENTILATION PRODUCTS AURA
AV-3-PVC ALUMINUM VENTILATOR)
RISER DUCT PIPE
THROUGH ROOF
FLASHING
ROOFTOP, SLOPED
COMPACTED FILL
BELOW DRIVEWAY
EXTEND VAPOR BARRIER
TO OUTSIDE OF FOOTER,
WHERE POSSIBLE 4920 OLD PINEVILLE ROAD CHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NUMBER 23067-19-060TOWNES AT LOSOSOIL GAS COLLECTOR MAT WITHIN BASE
COURSE - MIN 4" THICKNESS WITH MIN
1-INCH BELOW
(SEE SPECIFICATIONS #4 & #5)
VAPOR BARRIER (SEE SPECIFICATION #4)
SUBBASE
CONCRETE FLOOR SLAB
SECTION THROUGH EXTERIOR WALL
NTSVM1
BRICK OR HOUSE SIDING
EXTERNAL WALL (NOT
PRESENT AT ALL LOCATIONS)
STUD WALL
BASE COURSE
VAPOR BARRIER SEALED TO CONCRETE PER
MANUFACTURER INSTRUCTIONS.
SUBBASE
3
FOOTER
FULLY GROUTED
CMU BLOCK WALL
SECTION THROUGH TENANT SEPARATION BLOCK WALL
NTSVM1
BRICK OR HOUSE SIDING
EXTERNAL WALL (NOT
PRESENT AT ALL LOCATIONS)
STUD WALL
BASE COURSE
VAPOR BARRIER SEALED TO CONCRETE PER
MANUFACTURER INSTRUCTIONS (SEE SPECIFICATION #3)
SUBBASE
5
SECTION THROUGH TENANT SEPARATION BLOCK WALL WITH MAT
NTSVM1
BASE COURSE
VAPOR BARRIER SEALED TO CONCRETE PER
MANUFACTURER INSTRUCTIONS (SEE SPECIFICATION #4)
SUBBASE
6
SINGLE OR DOUBLE STUD
SEPARATION WALL
SOIL GAS COLLECTOR MAT (SEE
SPECIFICATION #6)
VAPOR BARRIER BENEATH
CONCRETE FOUNDATION
FOOTER
FOOTER
VIMS RISER AT VERTICAL SLAB PENETRATION7
VM1 NTS
BRICK OR HOUSE SIDING
EXTERNAL WALL (NOT
PRESENT AT ALL LOCATIONS)
STUD WALL
BASE COURSE
VAPOR BARRIER SEALED TO PIPE
AND CONCRETE PER
MANUFACTURER INSTRUCTIONS.
SUBBASE
RUN RISER PIPE TO
ROOF (SEE DETAIL #7)
INSIDE (OCCUPIED SPACE)
OUTSIDE/
ADJACENT UNIT
SOIL GAS COLLECTOR MAT
3" SCH 40 PVC RISER DUCT PIPE
(SEE SPECIFICATION #6)
FOOTER
INSIDE
(MECH. ROOM)
FLOOR SYSTEM, SEE FRAMING PLANS
4" TO 3" PVC REDUCER
4" SCH 40 PVC RISER DUCT PIPE
SOIL GAS COLLECTOR MAT CONNECTION BLOCK TO PVC
(ONE 0.5" DIAMETER HOLE DRILLED IN BOTTOM FOR MOISTURE DRAINAGE)
SOIL GAS COLLECTOR MAT CONNECTION SEALED TO
4" SCH 40 PVC RISER WITH POLYURETHANE SEALANT
IF EXTERIOR GRADE IS
HIGHER THAN THE SLAB
ELEVATION, WRAP VAPOR
BARRIER UP THE SIDE OF
THE FOOTER
8
NTSVM1
BRICK OR SIDING EXTERNAL WALL
(NOT PRESENT AT ALL LOCATIONS)
STUD WALL
BASE COURSE
2" SCH 40 PVC ELBOW
2" OPEN ENDED PIPE, PLACED AT A
MINIMUM OF 3' FROM EXTERIOR
TURN-DOWN SLABS
2" SOLID
SCH 40 PVC
LOCKABLE WEATHERPROOF
ENCLOSURE ON OUTSIDE OF HOUSE
WALL. REMOVABLE PIPE PLUG AT END
OF 2" PIPE.
PERMANENT VACUUM MONITORING POINT
FEBRUARY 6, 2024
AS-BUILT
DRAWING
BUILDING 1007
02/06/24
S:\AAA-Master Projects\NVR, Inc\NVR-013 Blythe-Isenhour\VIMS Install Reports\Building 1007\Figures\Building1007_AsBuilt.dwg, 2/6/2024 9:29:55 PM,DWG To PDF.pc3
RYAN HOMES, AN NVR,
INC COMPANY
10710 SIKES PLACE
SUITE 200
CHARLOTTE, NORTH
CAROLINA 28277
VAPOR MITIGATION
PLAN PREPARED BY
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
PROFESSIONAL APPROVAL / SEAL
H&H NO. NVR-013
VAPOR
INTRUSION
MITIGATION
SYSTEM PLAN
SPECIFICATIONS
VM-1A4920 OLD PINEVILLE ROAD CHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NUMBER 23067-19-060TOWNES AT LOSOFEBRUARY 6, 2024
VAPOR INTRUSION MITIGATION SYSTEM (VIMS) SPECIFICATIONS
1.THE AS-BUILT DRAWINGS ARE INTENDED TO DOCUMENT THE VIMS COMPONENT INSTALLATION ONLY AND IS NOT INTENDED TO DOCUMENT CONSTRUCTION OF STRUCTURAL COMPONENTS NOT
RELATED TO THE VIMS. CONSTRUCTION CONTRACTORS VERIFIED CONSISTENCY OF VIMS DETAILS WITH APPLICABLE STRUCTURAL, ARCHITECTURAL, MECHANICAL, AND PLUMBING PLANS AND RESOLVED
INCONSISTENCIES WITH THE DESIGN ENGINEER PRIOR TO VIMS INSTALLATION.
2.INSPECTIONS: INSPECTIONS OF EACH COMPONENT OF THE VIMS WERE CONDUCTED BY THE ENGINEER, OR ENGINEER'S DESIGNEE, TO CONFIRM VIMS COMPONENTS WERE INSTALLED PER THE
APPROVED DESIGN. THE INSPECTIONS INCLUDED: (1) INSPECTION OF SUB-SLAB PIPING LAYOUT AND GRAVEL PLACEMENT PRIOR TO INSTALLING VAPOR BARRIER (LINER); (2) INSPECTION OF VAPOR
BARRIER PRIOR TO POURING CONCRETE; (3) INSPECTION OF ABOVE-GRADE PIPING LAYOUT; AND (4) INSPECTION OF FAN AND VENT PIPE CONNECTIONS.
3.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS WERE INSTRUCTED TO USE "LOW OR NO VOC" (INCLUDING NO PCE OR TCE) PRODUCTS AND MATERIALS, WHEN POSSIBLE. THE
CONSTRUCTION CONTRACTOR AND SUB-CONTRACTORS PROVIDED SELECT SAFETY DATA SHEETS (SDS) TO THE ENGINEER FOR PRODUCTS AND MATERIALS USED DURING CONSTRUCTION.
4.VIMS VAPOR BARRIER IS VAPORBLOCK PLUS 20 VAPOR BARRIER MANUFACTURED BY VIAFLEX,INC. THE VAPOR BARRIER WAS INSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER INSTALLATION
INSTRUCTIONS TO CREATE A CONTINUOUS BARRIER BELOW GROUND FLOOR SLABS AND FOOTERS. A BASE COURSE CONSISTING OF CLEAN #57 STONE WAS INSTALLED BENEATH THE VIMS VAPOR
BARRIER. IN AREAS AROUND THE SOIL GAS COLLECTOR MAT, THE BASE COURSE LAYER WAS INSTALLED WITH A MINIMUM 2-INCH LAYER BELOW THE MAT AND A MINIMUM THICKNESS OF 4-INCHES
ACROSS THE ENTIRE SLAB.
PENETRATIONS WERE SEALED IN GENERAL ACCORDANCE TO VAPOR BARRIER MANUFACTURER INSTALLATION INSTRUCTIONS AS FOUND IN THE MANUFACTURER INSTALLATION GUIDELINES. SMALL
PUNCTURE HOLES WERE SEALED WITH THE VAPORSEALTM TAPE OR BUTYL SEAL DOUBLE SIDED TAPE AND LARGER TEARS OR DAMAGE WERE REPAIRED USING A PATCH THAT OVERLAPS THE DAMAGED
AREA AND THEN WAS TAPED ALONG THE SEAMS.
5.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS WERE INSTRUCTED TO AVOID THE USE OF TEMPORARY FORM BOARDS THAT PENETRATE THE VAPOR BARRIER WHERE POSSIBLE. AS FORM
BOARDS WERE REMOVED, THE CONTRACTOR OR SUB-CONTRACTORS WERE INSTRUCTED TO SEAL PENETRATIONS IN ACCORDANCE WITH VAPOR BARRIER MANUFACTURER INSTALLATION INSTRUCTIONS.
6.VIMS BELOW AND ABOVE GRADE PIPING WAS SLOPED A MINIMUM OF 18 UNIT VERTICAL IN 12 UNITS HORIZONTAL (1% SLOPE) TO GRAVITY DRAIN. SOLID SECTIONS OF HORIZONTAL COLLECTION
PIPE WERE SUPPORTED TO PREVENT PIPE SAG OR LOW POINT AND MAINTAIN 1% SLOPE TOWARD SLOTTED SECTIONS TO DRAIN CONDENSATION. HORIZONTAL SUB-SLAB COLLECTION SYSTEM CONSISTS
SOIL GAS COLLECTOR MAT WHICH IS APPROXIMATELY 1-INCH THICK BY 12-INCHES WIDE RECTANGULAR CONDUIT.
7.3” SCH 40 PVC RISER DUCT PIPING EXTENDS IN A VERTICAL ORIENTATION THROUGH THE BUILDING ROOF AND TERMINATES A MINIMUM OF 1 FT ABOVE THE BUILDING ROOF LINE. ACTIVE
VENTILATION PRODUCTS AURA AV-3-PVC ALUMINUM VENTILATORS WERE INSTALLED ON THE EXHAUST DISCHARGE END OF EACH RISER DUCT PIPE. A 3" PVC COUPLING WAS INSTALLED AT THE
DISCHARGE END OF THE 3" RISER DUCT PIPE AND THE VENTILATOR WAS SECURED TO THE PVC RISER IN A VERTICAL ORIENTATION. EXHAUST DISCHARGE IS NOT LESS THAN 10 FT (IN ANY DIRECTION)
FROM AIR INTAKE OPENINGS INCLUDE WINDOWS, DOORS, AND OTHER GRAVITY AIR INTAKE OPENINGS. AN ELECTRICAL JUNCTION BOX (120VAC) WAS INSTALLED NEAR THE RISER WITHIN THE ATTIC
SPACE FOR CONVERSION TO ELECTRIC FANS, IF REQUIRED.
8.ABOVE-SLAB ACCESSIBLE RISER DUCT PIPING WAS PERMANENTLY IDENTIFIED BY MEANS OF A LABEL AT A MINIMUM OF ONCE EVERY 10-LINEAR FT WITH "VAPOR MITIGATION - CONTACT HOA".
THE RISER PIPE NEAR THE VENTILATOR WAS LABELED WITH "VAPOR MITIGATION SYSTEM - CONTACT HOA IF DAMAGED" IN AN ACCESSIBLE LOCATION IN THE ATTIC.
AS-BUILT
DRAWING
BUILDING 1007
02/06/24
S:\AAA-Master Projects\NVR, Inc\NVR-013 Blythe-Isenhour\VIMS Install Reports\Building 1007\Figures\Building1007_AsBuilt.dwg
MP-1007-32
MP-1007-33MP-1007-31
RYAN HOMES, AN NVR,
INC COMPANY
10710 SIKES PLACE
SUITE 200
CHARLOTTE, NORTH
CAROLINA 28277
VAPOR MITIGATION
PLAN PREPARED BY
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
PROFESSIONAL APPROVAL / SEAL
VAPOR
INTRUSION
MITIGATION
SYSTEM PLAN
PLAN VIEW
VM-2
LEGEND
EXTENT OF VAPOR BARRIER - SEE SPECIFICATION #3 ON SHEET VM-1A
SOIL GAS COLLECTOR MAT
VERTICAL RISER (3" SCH 40 PVC) AND EXHAUST LOCATION
VACUUM MONITORING POINT (2" SCH 40 PVC WITH OPEN END)
LOAD BEARING WALL
NOTES:
1.ONE VACUUM MONITORING POINT WAS INSTALLED PER UNIT. THE VACUUM MONITORING POINTS WERE
INSTALLED ON THE FRONT SIDE OF THE UNITS.
2.REFER TO SPECIFICATIONS 1 THROUGH 8 AND SECTION DETAILS ON SHEETS VM-1 AND VM-1A.
3.EACH UNIT IS APPROXIMATELY 640 SQ FT (16 FT X 40 FT).
H&H NO. NVR-0134920 OLD PINEVILLE ROAD CHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NUMBER 23067-19-060TOWNES AT LOSO4
VM1
7/9
VM1
7/9
VM1
8
VM1
3
VM1 6
VM1
8
VM1 8
VM1
7/9
VM1
3
VM1
5
VM1
2
VM1
1
VM1
FEBRUARY 6, 2024CLEBURNE COURTAS-BUILT
DRAWING
BUILDING 1007
UNIT 33
6103 CLEBURNE COURT
UNIT 32
6107 CLEBURNE COURT
UNIT 31
6111 CLEBURNE COURT
ATLANTIS LANE
02/06/24
S:\AAA-Master Projects\NVR, Inc\NVR-013 Blythe-Isenhour\VIMS Install Reports\Building 1007\Figures\Building1007_AsBuilt.dwg

Appendix D
VIMS Installation Photographs

Photograph 2: Representative photograph of the monitoring point installation prior to vapor barrier
installation.NVR-0132923 S. Tryon Street, Suite 100
Charlotte, NC 28203
704.586.0007(p) 704.586.0373(f)
Photograph 1: Representative photograph of the gravel base and sub-slab soil gas collector mats
and riser pipes.
TOWNES AT LOSO – BUILDING 1007
4920 OLD PINEVILLE ROAD
CHARLOTTE, NORTH CAROLINA
Photographs 3 & 4: Representative photograph of the Viaflex, Inc. VaporBlock Plus 20 vapor barrier
installed prior to the slab pour.NVR-0132923 S. Tryon Street, Suite 100
Charlotte, NC 28203
704.586.0007(p) 704.586.0373(f)
TOWNES AT LOSO – BUILDING 1007
4920 OLD PINEVILLE ROAD
CHARLOTTE, NORTH CAROLINA
2923 S. Tryon Street, Suite 100
Charlotte, NC 28203
704.586.0007(p) 704.586.0373(f)
Photographs 5 & 6: Representative photograph of properly pitched and labeled riser pipe.NVR-013Vapor mitigation
label on riser
Photograph 7: Representative photograph of buildings with stationary ventilators installed on
the roof.
TOWNES AT LOSO – BUILDING 1007
4920 OLD PINEVILLE ROAD
CHARLOTTE, NORTH CAROLINA

Appendix E
Field Forms and Field Data

Category Example Criteria
Correct vapor barrier type
Proper vapor barrier overlap and seals around penetrations per
manufacturer instructions
Good condition of vapor barrier
Proper base layer (i.e., gravel, aerated flooring) and thickness
Proper placement, type, and pitch of VIMS vent piping
Proper placement, type, and pitch of monitoring points
Correct vapor barrier type
Proper vapor barrier overlap and seals around penetrations per
manufacturer instructions
Proper vapor barrier installation along vertical walls (e.g. retaining walls,
elevators, etc.)
Good condition of vapor barrier
Riser pipe material and fitting connections
Proper pitch towards sub-slab (gravity drain)
Appropriate VIMS labels
Correct fan/ventilator
Fan/ventilator operation
Proper fittings and protection (varmint screens, electrical covers, etc.)
Appropriate VIMS labels
Proper distance from roof intakes and parapets
Pilot Test Pilot test completed
Checkout Monitoring points finished and accessible (Can perform pilot test before
MPs are fully finished)
MP Sampling Sub-slab sampling completed SMS
Vent Riser Piping
SMS
SMS
SMS
Fan/Ventilator
SMS
SMS
SMS
SMS
SMS
SMS
Sub-Slab
SMS
SMS
SMS
SMS
Vapor Barrier
SMS
SMS
SMS
SMS
Vapor Intrusion Mitigation System - Inspection Checklist
Site Name and H&H Project #: Townes at LoSo, NVR-013
DEQ Brownfields ID: 23067-19-060
Building/Area ID: Bldg. 1007
Start Date and End Date: November 2023 - February 2024
H&H Construction Manager: Shannon Switch
Footers Vapor Barrier
(If poured separate)
SMS
SMS
SMS
Proper Installation
(Initial below)
https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-013 Blythe-Isenhour/VIMS Install Reports/Building 1007/Field Forms/VIMS
Inspection Checklist_Reporting\1012
Table E-1VIMS Installation Completion ReportTownes at LoSo – Building 1007Blythe IsenhourCharlotte, North CarolinaBrownfields Project No. 23067-19-060H&H Job No. NVR-013Baseline Initial Follow-upFan0.0001.4081.402MP-1007-31 0.0000.0450.046Fan0.0003.7663.756MP-1007-31 0.0000.0890.087Fan0.0001.3961.390MP-1007-32 0.0000.1110.113Fan0.0003.2203.211MP-1007-32 0.0000.2260.228Fan0.0001.4551.448MP-1007-33 0.0000.2100.205Fan0.0003.3323.342MP-1007-33 0.0000.4270.425NotesVacuum measurements are reported in inches of water column (in-WC). Vacuum measurements were collected from above slab. Follow-up reading collected approximately 5 minutes after initial reading. MP = Monitoring PointRP 145cAMG Eagle ExtremeRP 145cVacuum (in-WC)Fan TypeBuilding 100733323111/9/2023AMG Eagle ExtremeRP 145cPoint TypeDateUnit NumberBuildingAMG Eagle Extremehttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-013 Blythe-Isenhour/VIMS Install Reports/Building 1007/Field Forms/Pilot Test_report1/5/2024Table E-1 (Page 1 of 1) Hart & Hickman, PC
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D/DVWXSGDWHG+J LQFKHVRIPHUFXU\SSP SDUWVSHUPLOOLRQ1RWHVBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB6DPSOH,'7\SH9DSRU0RQLWRULQJ3RLQW&RQVWUXFWLRQ +HOLXP/HDN7HVWEŽƚĞ͗>ĞĂŬdĞƐƚZĞƋƵŝƌĞŵĞŶƚƐWĞƌEYtDsĂƉŽƌ/ŶƚƌƵƐŝŽŶ'ƵŝĚĂŶĐĞ͕ůĞĂŬƚĞƐƚƉĂƐƐĞƐŝĨŚĞůŝƵŵĐŽŶĐĞŶƚƌĂƚŝŽŶŝŶƉƵƌŐĞĂŝƌŝƐůĞƐƐƚŚĂŶϭϬйŽĨŚĞůŝƵŵĐŽŶĐĞŶƚƌĂƚŝŽŶŝŶƐŚƌŽƵĚ͘/ OHQJWKRIWXELQJSLSHIWD IRUGLDPHWHU/IWD IRUGLDPHWHU/IW͗ͰhƐĞƌƐͰŵǀĂǁƚĞƌͰƌŽƉďŽdžͰLJKƚŚĞƌͰ&ŽƌŵĚŝƚƐͰ/YͲ^^sͰsĂƉŽƌ^ĂŵƉůŝŶŐ&ŽƌŵƐͺsϲ͘Ϭ^ƵďͲ^ůĂďͬ^Žŝů'ĂƐ^ĂŵƉůŝŶŐsĂƉŽƌ/ŶƐƚĂůůĂƚŝŽŶ&ŝĞůĚ&Žƌŵ,ĂƌƚΘ,ŝĐŬŵĂŶ͕WNVR-013 SMS 50's, overcastBld. 1007 Unit 31--SS Perm. Conc. 5 Gravel NA Full12/28/23 11:1555 Pump 10 10.2 0 ppm Yes--Bld. 1007 Unit 33 & DUP--SS Perm. Conc. 5 Gravel NA Full12/28/23 11:2055 Pump 10 10.8 0 ppm Yes--SS-1007-315976SS Perm. Conc. 5 Gravel NA Full12/28/23 12:1055 Pump 15 10.5 0 ppm Yes16213SS-1007-33 / DUP13687 / 11377SS Perm. Conc. 5 Gravel NA Full12/28/23 12:4055 Pump 15 11.6 0 ppm Yes13132Bld. 1007 Unit 31--SS Perm. Conc. 5 Gravel NA Full12/29/23 16:0045 Pump 10 12.3 0 ppm Yes--Bld. 1007 Unit 33 & DUP--SS Perm. Conc. 5 Gravel NA Full12/29/23 16:0545 Pump 10 11.7 0 ppm Yes--
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Appendix F
Laboratory Analytical Report

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

1/5/2024
Hart & Hickman (Charlotte) Shannon Switch
2923 South Tryon St. Ste 100 Charlotte, NC, 28203
Ref: Analytical Testing
Lab Report Number: 23-362-0019 Client Project Description: Townes At Laso
Dear Shannon Switch:
Waypoint Analytical, LLC (Charlotte) received sample(s) on 12/28/2023 for the analyses presented in the
following report.
The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method.
The analytical data has been validated using standard quality control measures performed as required by the
analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136
Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time.
Refer to sample analysis time for confirmation of holding time compliance.
The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to
the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely,
Angela D Overcash Senior Project Manager
Page 1 of 22
Certification Summary
Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC
State Program Lab ID Expiration Date
07/31/202437735State ProgramNorth Carolina
12/31/2024402State ProgramNorth Carolina
07/31/202499012State ProgramSouth Carolina
12/31/202399012State ProgramSouth Carolina
Page 1 of 1 00016/23-362-0019
Page 2 of 22
Report Number:
Sample Summary Table
Client Project Description:
23-362-0019
Townes At Laso
Lab No Client Sample ID Matrix Date Collected Date Received
12/28/2023 12:45Air 92818 SS-1007-33 12/28/2023 16:00
12/28/2023Air 92819 SS-1007-DUP 12/28/2023 16:00
12/28/2023 12:15Air 92820 SS-1007-31 12/28/2023 16:00
Page 3 of 22
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-362-0019
Report Limit
Project:Townes At Laso
V 92818SS-1007-33
407 01/02/2024 17:28TO-15 Acetone µg/m3 4.04
JB1.86 01/03/2024 19:38TO-15 Carbon Disulfide µg/m3 0.060
J0.572 01/03/2024 19:38TO-15 Carbon Tetrachloride µg/m3 0.155
31.3 01/03/2024 19:38TO-15 Chloroform µg/m3 0.086
3.13 01/03/2024 19:38TO-15 Dichlorodifluoromethane µg/m3 0.134
J0.894 01/03/2024 19:38TO-15 Ethylbenzene µg/m3 0.106
J0.620 01/03/2024 19:38TO-15 1,1,2-Trichloro-1,2,2-trifluoroethane µg/m3 0.561
JB1.09 01/03/2024 19:38TO-15 Isopropyl Alcohol µg/m3 0.139
1360 01/02/2024 17:28TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48
2.24 01/03/2024 19:38TO-15 Methylene Chloride µg/m3 0.488
8.10 01/03/2024 19:38TO-15 Tetrahydrofuran µg/m3 0.107
J0.459 01/03/2024 19:38TO-15 Toluene µg/m3 0.090
J1.87 01/03/2024 19:38TO-15 Trichlorofluoromethane µg/m3 0.130
J1.10 01/03/2024 19:38TO-15 o-Xylene µg/m3 0.157
J3.44 01/03/2024 19:38TO-15 m,p-Xylene µg/m3 0.217
J4.54 01/03/2024 19:38TO-15 Xylene (Total)µg/m3 0.157
V 92819SS-1007-DUP
389 01/02/2024 18:05TO-15 Acetone µg/m3 4.04
J0.230 01/03/2024 20:30TO-15 Benzene µg/m3 0.073
JB1.75 01/03/2024 20:30TO-15 Carbon Disulfide µg/m3 0.060
J0.610 01/03/2024 20:30TO-15 Carbon Tetrachloride µg/m3 0.155
31.3 01/03/2024 20:30TO-15 Chloroform µg/m3 0.086
3.02 01/03/2024 20:30TO-15 Dichlorodifluoromethane µg/m3 0.134
J1.05 01/03/2024 20:30TO-15 Ethylbenzene µg/m3 0.106
J0.636 01/03/2024 20:30TO-15 1,1,2-Trichloro-1,2,2-trifluoroethane µg/m3 0.561
1300 01/02/2024 18:05TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48
2.11 01/03/2024 20:30TO-15 Methylene Chloride µg/m3 0.488
8.46 01/03/2024 20:30TO-15 Tetrahydrofuran µg/m3 0.107
J0.459 01/03/2024 20:30TO-15 Toluene µg/m3 0.090
J1.84 01/03/2024 20:30TO-15 Trichlorofluoromethane µg/m3 0.130
J0.353 01/03/2024 20:30TO-15 1,2,4-Trimethylbenzene µg/m3 0.110
J1.12 01/03/2024 20:30TO-15 o-Xylene µg/m3 0.157
J3.78 01/03/2024 20:30TO-15 m,p-Xylene µg/m3 0.217
J4.90 01/03/2024 20:30TO-15 Xylene (Total)µg/m3 0.157
V 92820SS-1007-31
366 01/02/2024 18:41TO-15 Acetone µg/m3 4.04
Page 4 of 22
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-362-0019
Report Limit
Project:Townes At Laso
V 92820SS-1007-31
J0.444 01/03/2024 21:21TO-15 Benzene µg/m3 0.073
JB2.08 01/03/2024 21:21TO-15 Carbon Disulfide µg/m3 0.060
4.95 01/03/2024 21:21TO-15 Chloroform µg/m3 0.086
3.90 01/03/2024 21:21TO-15 Cyclohexane µg/m3 0.161
3.06 01/03/2024 21:21TO-15 Dichlorodifluoromethane µg/m3 0.134
J0.628 01/03/2024 21:21TO-15 1,1,2-Trichloro-1,2,2-trifluoroethane µg/m3 0.561
J0.344 01/03/2024 21:21TO-15 Heptane µg/m3 0.143
J1.50 01/03/2024 21:21TO-15 n-Hexane µg/m3 0.047
JB2.25 01/03/2024 21:21TO-15 Isopropyl Alcohol µg/m3 0.139
1010 01/02/2024 18:41TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48
2.08 01/03/2024 21:21TO-15 Methylene Chloride µg/m3 0.488
J0.387 01/03/2024 21:21TO-15 Styrene µg/m3 0.124
8.20 01/03/2024 21:21TO-15 Tetrahydrofuran µg/m3 0.107
1.89 01/03/2024 21:21TO-15 Toluene µg/m3 0.090
J1.94 01/03/2024 21:21TO-15 Trichlorofluoromethane µg/m3 0.130
J0.427 01/03/2024 21:21TO-15 1,2,4-Trimethylbenzene µg/m3 0.110
J0.334 01/03/2024 21:21TO-15 o-Xylene µg/m3 0.157
J0.790 01/03/2024 21:21TO-15 m,p-Xylene µg/m3 0.217
J1.12 01/03/2024 21:21TO-15 Xylene (Total)µg/m3 0.157
Page 5 of 22
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-362-0019
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 12/28/2023
Townes At Laso
Report Date : 01/05/2024
Sample ID :
Lab No :
Sampled:SS-1007-33
92818 Matrix:
12/28/2023 12:45
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V41929 01/03/24 09:00 V41979 01/02/24 09:00
407 µg/m3 4.04 95.0Acetone 20 01/02/24 17:28 V42005ENM
<0.073 µg/m3 0.073 1.60Benzene 1 01/03/24 19:38 V41932ENM
<0.147 µg/m3 0.147 10.4Benzyl Chloride 1 01/03/24 19:38 V41932ENM
<0.150 µg/m3 0.150 3.35Bromodichloromethane 1 01/03/24 19:38 V41932ENM
<0.153 µg/m3 0.153 5.17Bromoform 1 01/03/24 19:38 V41932ENM
<0.115 µg/m3 0.115 1.94Bromomethane 1 01/03/24 19:38 V41932ENM
<0.328 µg/m3 0.328 1.111,3-Butadiene 1 01/03/24 19:38 V41932ENM
1.86 JB µg/m3 0.060 6.23Carbon Disulfide 1 01/03/24 19:38 V41932ENM
0.572 J
µg/m3 0.155 3.15
Carbon Tetrachloride 1 01/03/24 19:38 V41932ENM
<0.107 µg/m3 0.107 2.30Chlorobenzene 1 01/03/24 19:38 V41932ENM
<0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 01/03/24 19:38 V41932ENM
<0.164 µg/m3 0.164 1.32Chloroethane 1 01/03/24 19:38 V41932ENM
31.3 µg/m3 0.086 2.44Chloroform 1 01/03/24 19:38 V41932ENM
<0.067 µg/m3 0.067 1.03Chloromethane 1 01/03/24 19:38 V41932ENM
<0.161 µg/m3 0.161 3.44Cyclohexane 1 01/03/24 19:38 V41932ENM
<0.151 µg/m3 0.151 3.84
1,2-Dibromoethane 1 01/03/24 19:38 V41932ENM
<0.096 µg/m3 0.096 3.011,2-Dichlorobenzene 1 01/03/24 19:38 V41932ENM
<0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 01/03/24 19:38 V41932ENM
<0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 01/03/24 19:38 V41932ENM
3.13 µg/m3 0.134 2.47Dichlorodifluoromethane 1 01/03/24 19:38 V41932ENM
<0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 01/03/24 19:38 V41932ENM
<0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 01/03/24 19:38 V41932ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 6 of 22
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-362-0019
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 12/28/2023
Townes At Laso
Report Date : 01/05/2024
Sample ID :
Lab No :
Sampled:SS-1007-33
92818 Matrix:
12/28/2023 12:45
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V41929 01/03/24 09:00 V41979 01/02/24 09:00
<0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 01/03/24 19:38 V41932ENM
<0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 01/03/24 19:38 V41932ENM
<0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 01/03/24 19:38 V41932ENM
<0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 01/03/24 19:38 V41932ENM
<0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 01/03/24 19:38 V41932ENM
<0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 01/03/24 19:38 V41932ENM
<0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 01/03/24 19:38 V41932ENM
<0.435 µg/m3 0.435 1.801,4-Dioxane 1 01/03/24 19:38 V41932ENM
<0.136 µg/m3 0.136 1.80
Ethyl Acetate 1 01/03/24 19:38 V41932ENM
0.894 J µg/m3 0.106 2.17Ethylbenzene 1 01/03/24 19:38 V41932ENM
<0.128 µg/m3 0.128 2.464-Ethyltoluene 1 01/03/24 19:38 V41932ENM
0.620 J µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 01/03/24 19:38 V41932ENM
<0.143 µg/m3 0.143 2.05Heptane 1 01/03/24 19:38 V41932ENM
<0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 01/03/24 19:38 V41932ENM
<0.047 µg/m3 0.047 1.76n-Hexane 1 01/03/24 19:38 V41932ENM
<0.285 µg/m3 0.285 2.05
2-Hexanone 1 01/03/24 19:38 V41932ENM
1.09 JB µg/m3 0.139 4.92Isopropyl Alcohol 1 01/03/24 19:38 V41932ENM
1360 µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 01/02/24 17:28 V42005ENM
<0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 01/03/24 19:38 V41932ENM
<0.121 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 01/03/24 19:38 V41932ENM
2.24 µg/m3 0.488 1.74Methylene Chloride 1 01/03/24 19:38 V41932ENM
<0.183 µg/m3 0.183 2.62Naphthalene 1 01/03/24 19:38 V41932ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 7 of 22
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-362-0019
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 12/28/2023
Townes At Laso
Report Date : 01/05/2024
Sample ID :
Lab No :
Sampled:SS-1007-33
92818 Matrix:
12/28/2023 12:45
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V41929 01/03/24 09:00 V41979 01/02/24 09:00
<0.242 µg/m3 0.242 0.860Propene 1 01/03/24 19:38 V41932ENM
<0.124 µg/m3 0.124 2.13Styrene 1 01/03/24 19:38 V41932ENM
<0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 01/03/24 19:38 V41932ENM
<0.181 µg/m3 0.181 3.39Tetrachloroethene 1 01/03/24 19:38 V41932ENM
8.10 µg/m3 0.107 1.47Tetrahydrofuran 1 01/03/24 19:38 V41932ENM
0.459 J µg/m3 0.090 1.88Toluene 1 01/03/24 19:38 V41932ENM
<0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 01/03/24 19:38 V41932ENM
<0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 01/03/24 19:38 V41932ENM
<0.087 µg/m3 0.087 2.73
1,1,2-Trichloroethane 1 01/03/24 19:38 V41932ENM
<0.199 µg/m3 0.199 2.15Trichloroethene 1 01/03/24 19:38 V41932ENM
1.87 J µg/m3 0.130 2.81Trichlorofluoromethane 1 01/03/24 19:38 V41932ENM
<0.110 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 01/03/24 19:38 V41932ENM
<0.236 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 01/03/24 19:38 V41932ENM
<0.224 µg/m3 0.224 1.76Vinyl Acetate 1 01/03/24 19:38 V41932ENM
<0.127 µg/m3 0.127 1.28Vinyl Chloride 1 01/03/24 19:38 V41932ENM
1.10 J
µg/m3 0.157 2.17
o-Xylene 1 01/03/24 19:38 V41932ENM
3.44 J µg/m3 0.217 5.65m,p-Xylene 1 01/03/24 19:38 V41932ENM
4.54 J µg/m3 0.157 2.17Xylene (Total)1 01/03/24 19:38 V41932
Surrogate: 4-Bromofluorobenzene 105 Limits: 70-130%01/03/24 19:381 ENM V41932
Surrogate: 4-Bromofluorobenzene 101 Limits: 70-130%01/02/24 17:2820 ENM V42005
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 8 of 22
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-362-0019
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 12/28/2023
Townes At Laso
Report Date : 01/05/2024
Sample ID :
Lab No :
Sampled:SS-1007-DUP
92819 Matrix:
12/28/2023 0:00
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V41929 01/03/24 09:00 V41979 01/02/24 09:00
389 µg/m3 4.04 95.0Acetone 20 01/02/24 18:05 V42005ENM
0.230 J µg/m3 0.073 1.60Benzene 1 01/03/24 20:30 V41932ENM
<0.147 µg/m3 0.147 10.4Benzyl Chloride 1 01/03/24 20:30 V41932ENM
<0.150 µg/m3 0.150 3.35Bromodichloromethane 1 01/03/24 20:30 V41932ENM
<0.153 µg/m3 0.153 5.17Bromoform 1 01/03/24 20:30 V41932ENM
<0.115 µg/m3 0.115 1.94Bromomethane 1 01/03/24 20:30 V41932ENM
<0.328 µg/m3 0.328 1.111,3-Butadiene 1 01/03/24 20:30 V41932ENM
1.75 JB µg/m3 0.060 6.23Carbon Disulfide 1 01/03/24 20:30 V41932ENM
0.610 J
µg/m3 0.155 3.15
Carbon Tetrachloride 1 01/03/24 20:30 V41932ENM
<0.107 µg/m3 0.107 2.30Chlorobenzene 1 01/03/24 20:30 V41932ENM
<0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 01/03/24 20:30 V41932ENM
<0.164 µg/m3 0.164 1.32Chloroethane 1 01/03/24 20:30 V41932ENM
31.3 µg/m3 0.086 2.44Chloroform 1 01/03/24 20:30 V41932ENM
<0.067 µg/m3 0.067 1.03Chloromethane 1 01/03/24 20:30 V41932ENM
<0.161 µg/m3 0.161 3.44Cyclohexane 1 01/03/24 20:30 V41932ENM
<0.151 µg/m3 0.151 3.84
1,2-Dibromoethane 1 01/03/24 20:30 V41932ENM
<0.096 µg/m3 0.096 3.011,2-Dichlorobenzene 1 01/03/24 20:30 V41932ENM
<0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 01/03/24 20:30 V41932ENM
<0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 01/03/24 20:30 V41932ENM
3.02 µg/m3 0.134 2.47Dichlorodifluoromethane 1 01/03/24 20:30 V41932ENM
<0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 01/03/24 20:30 V41932ENM
<0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 01/03/24 20:30 V41932ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 9 of 22
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-362-0019
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 12/28/2023
Townes At Laso
Report Date : 01/05/2024
Sample ID :
Lab No :
Sampled:SS-1007-DUP
92819 Matrix:
12/28/2023 0:00
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V41929 01/03/24 09:00 V41979 01/02/24 09:00
<0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 01/03/24 20:30 V41932ENM
<0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 01/03/24 20:30 V41932ENM
<0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 01/03/24 20:30 V41932ENM
<0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 01/03/24 20:30 V41932ENM
<0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 01/03/24 20:30 V41932ENM
<0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 01/03/24 20:30 V41932ENM
<0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 01/03/24 20:30 V41932ENM
<0.435 µg/m3 0.435 1.801,4-Dioxane 1 01/03/24 20:30 V41932ENM
<0.136 µg/m3 0.136 1.80
Ethyl Acetate 1 01/03/24 20:30 V41932ENM
1.05 J µg/m3 0.106 2.17Ethylbenzene 1 01/03/24 20:30 V41932ENM
<0.128 µg/m3 0.128 2.464-Ethyltoluene 1 01/03/24 20:30 V41932ENM
0.636 J µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 01/03/24 20:30 V41932ENM
<0.143 µg/m3 0.143 2.05Heptane 1 01/03/24 20:30 V41932ENM
<0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 01/03/24 20:30 V41932ENM
<0.047 µg/m3 0.047 1.76n-Hexane 1 01/03/24 20:30 V41932ENM
<0.285 µg/m3 0.285 2.05
2-Hexanone 1 01/03/24 20:30 V41932ENM
<0.139 µg/m3 0.139 4.92Isopropyl Alcohol 1 01/03/24 20:30 V41932ENM
1300 µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 01/02/24 18:05 V42005ENM
<0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 01/03/24 20:30 V41932ENM
<0.121 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 01/03/24 20:30 V41932ENM
2.11 µg/m3 0.488 1.74Methylene Chloride 1 01/03/24 20:30 V41932ENM
<0.183 µg/m3 0.183 2.62Naphthalene 1 01/03/24 20:30 V41932ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 10 of 22
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-362-0019
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 12/28/2023
Townes At Laso
Report Date : 01/05/2024
Sample ID :
Lab No :
Sampled:SS-1007-DUP
92819 Matrix:
12/28/2023 0:00
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V41929 01/03/24 09:00 V41979 01/02/24 09:00
<0.242 µg/m3 0.242 0.860Propene 1 01/03/24 20:30 V41932ENM
<0.124 µg/m3 0.124 2.13Styrene 1 01/03/24 20:30 V41932ENM
<0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 01/03/24 20:30 V41932ENM
<0.181 µg/m3 0.181 3.39Tetrachloroethene 1 01/03/24 20:30 V41932ENM
8.46 µg/m3 0.107 1.47Tetrahydrofuran 1 01/03/24 20:30 V41932ENM
0.459 J µg/m3 0.090 1.88Toluene 1 01/03/24 20:30 V41932ENM
<0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 01/03/24 20:30 V41932ENM
<0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 01/03/24 20:30 V41932ENM
<0.087 µg/m3 0.087 2.73
1,1,2-Trichloroethane 1 01/03/24 20:30 V41932ENM
<0.199 µg/m3 0.199 2.15Trichloroethene 1 01/03/24 20:30 V41932ENM
1.84 J µg/m3 0.130 2.81Trichlorofluoromethane 1 01/03/24 20:30 V41932ENM
0.353 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 01/03/24 20:30 V41932ENM
<0.236 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 01/03/24 20:30 V41932ENM
<0.224 µg/m3 0.224 1.76Vinyl Acetate 1 01/03/24 20:30 V41932ENM
<0.127 µg/m3 0.127 1.28Vinyl Chloride 1 01/03/24 20:30 V41932ENM
1.12 J
µg/m3 0.157 2.17
o-Xylene 1 01/03/24 20:30 V41932ENM
3.78 J µg/m3 0.217 5.65m,p-Xylene 1 01/03/24 20:30 V41932ENM
4.90 J µg/m3 0.157 2.17Xylene (Total)1 01/03/24 20:30 V41932
Surrogate: 4-Bromofluorobenzene 104 Limits: 70-130%01/03/24 20:301 ENM V41932
Surrogate: 4-Bromofluorobenzene 101 Limits: 70-130%01/02/24 18:0520 ENM V42005
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 11 of 22
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-362-0019
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 12/28/2023
Townes At Laso
Report Date : 01/05/2024
Sample ID :
Lab No :
Sampled:SS-1007-31
92820 Matrix:
12/28/2023 12:15
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V41929 01/03/24 09:00 V41979 01/02/24 09:00
366 µg/m3 4.04 95.0Acetone 20 01/02/24 18:41 V42005ENM
0.444 J µg/m3 0.073 1.60Benzene 1 01/03/24 21:21 V41932ENM
<0.147 µg/m3 0.147 10.4Benzyl Chloride 1 01/03/24 21:21 V41932ENM
<0.150 µg/m3 0.150 3.35Bromodichloromethane 1 01/03/24 21:21 V41932ENM
<0.153 µg/m3 0.153 5.17Bromoform 1 01/03/24 21:21 V41932ENM
<0.115 µg/m3 0.115 1.94Bromomethane 1 01/03/24 21:21 V41932ENM
<0.328 µg/m3 0.328 1.111,3-Butadiene 1 01/03/24 21:21 V41932ENM
2.08 JB µg/m3 0.060 6.23Carbon Disulfide 1 01/03/24 21:21 V41932ENM
<0.155 µg/m3 0.155 3.15
Carbon Tetrachloride 1 01/03/24 21:21 V41932ENM
<0.107 µg/m3 0.107 2.30Chlorobenzene 1 01/03/24 21:21 V41932ENM
<0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 01/03/24 21:21 V41932ENM
<0.164 µg/m3 0.164 1.32Chloroethane 1 01/03/24 21:21 V41932ENM
4.95 µg/m3 0.086 2.44Chloroform 1 01/03/24 21:21 V41932ENM
<0.067 µg/m3 0.067 1.03Chloromethane 1 01/03/24 21:21 V41932ENM
3.90 µg/m3 0.161 3.44Cyclohexane 1 01/03/24 21:21 V41932ENM
<0.151 µg/m3 0.151 3.84
1,2-Dibromoethane 1 01/03/24 21:21 V41932ENM
<0.096 µg/m3 0.096 3.011,2-Dichlorobenzene 1 01/03/24 21:21 V41932ENM
<0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 01/03/24 21:21 V41932ENM
<0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 01/03/24 21:21 V41932ENM
3.06 µg/m3 0.134 2.47Dichlorodifluoromethane 1 01/03/24 21:21 V41932ENM
<0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 01/03/24 21:21 V41932ENM
<0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 01/03/24 21:21 V41932ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 12 of 22
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-362-0019
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 12/28/2023
Townes At Laso
Report Date : 01/05/2024
Sample ID :
Lab No :
Sampled:SS-1007-31
92820 Matrix:
12/28/2023 12:15
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V41929 01/03/24 09:00 V41979 01/02/24 09:00
<0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 01/03/24 21:21 V41932ENM
<0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 01/03/24 21:21 V41932ENM
<0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 01/03/24 21:21 V41932ENM
<0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 01/03/24 21:21 V41932ENM
<0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 01/03/24 21:21 V41932ENM
<0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 01/03/24 21:21 V41932ENM
<0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 01/03/24 21:21 V41932ENM
<0.435 µg/m3 0.435 1.801,4-Dioxane 1 01/03/24 21:21 V41932ENM
<0.136 µg/m3 0.136 1.80
Ethyl Acetate 1 01/03/24 21:21 V41932ENM
<0.106 µg/m3 0.106 2.17Ethylbenzene 1 01/03/24 21:21 V41932ENM
<0.128 µg/m3 0.128 2.464-Ethyltoluene 1 01/03/24 21:21 V41932ENM
0.628 J µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 01/03/24 21:21 V41932ENM
0.344 J µg/m3 0.143 2.05Heptane 1 01/03/24 21:21 V41932ENM
<0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 01/03/24 21:21 V41932ENM
1.50 J µg/m3 0.047 1.76n-Hexane 1 01/03/24 21:21 V41932ENM
<0.285 µg/m3 0.285 2.05
2-Hexanone 1 01/03/24 21:21 V41932ENM
2.25 JB µg/m3 0.139 4.92Isopropyl Alcohol 1 01/03/24 21:21 V41932ENM
1010 µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 01/02/24 18:41 V42005ENM
<0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 01/03/24 21:21 V41932ENM
<0.121 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 01/03/24 21:21 V41932ENM
2.08 µg/m3 0.488 1.74Methylene Chloride 1 01/03/24 21:21 V41932ENM
<0.183 µg/m3 0.183 2.62Naphthalene 1 01/03/24 21:21 V41932ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 13 of 22
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
23-362-0019
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Shannon Switch
Charlotte
Received : 12/28/2023
Townes At Laso
Report Date : 01/05/2024
Sample ID :
Lab No :
Sampled:SS-1007-31
92820 Matrix:
12/28/2023 12:15
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V41929 01/03/24 09:00 V41979 01/02/24 09:00
<0.242 µg/m3 0.242 0.860Propene 1 01/03/24 21:21 V41932ENM
0.387 J µg/m3 0.124 2.13Styrene 1 01/03/24 21:21 V41932ENM
<0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 01/03/24 21:21 V41932ENM
<0.181 µg/m3 0.181 3.39Tetrachloroethene 1 01/03/24 21:21 V41932ENM
8.20 µg/m3 0.107 1.47Tetrahydrofuran 1 01/03/24 21:21 V41932ENM
1.89 µg/m3 0.090 1.88Toluene 1 01/03/24 21:21 V41932ENM
<0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 01/03/24 21:21 V41932ENM
<0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 01/03/24 21:21 V41932ENM
<0.087 µg/m3 0.087 2.73
1,1,2-Trichloroethane 1 01/03/24 21:21 V41932ENM
<0.199 µg/m3 0.199 2.15Trichloroethene 1 01/03/24 21:21 V41932ENM
1.94 J µg/m3 0.130 2.81Trichlorofluoromethane 1 01/03/24 21:21 V41932ENM
0.427 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 01/03/24 21:21 V41932ENM
<0.236 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 01/03/24 21:21 V41932ENM
<0.224 µg/m3 0.224 1.76Vinyl Acetate 1 01/03/24 21:21 V41932ENM
<0.127 µg/m3 0.127 1.28Vinyl Chloride 1 01/03/24 21:21 V41932ENM
0.334 J
µg/m3 0.157 2.17
o-Xylene 1 01/03/24 21:21 V41932ENM
0.790 J µg/m3 0.217 5.65m,p-Xylene 1 01/03/24 21:21 V41932ENM
1.12 J µg/m3 0.157 2.17Xylene (Total)1 01/03/24 21:21 V41932
Surrogate: 4-Bromofluorobenzene 104 Limits: 70-130%01/03/24 21:211 ENM V41932
Surrogate: 4-Bromofluorobenzene 101 Limits: 70-130%01/02/24 18:4120 ENM V42005
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Method Quantitation LimitMQLEstimated valueJ
Page 14 of 22
Quality Control Data
23-362-0019Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
Townes At Laso
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V41932QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V41929
Associated Lab Samples: 92818, 92819, 92820
LRB-V41929 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
01/03/24 14:081.600.073<0.073µg/m3Benzene
01/03/24 14:0810.40.147<0.147µg/m3Benzyl Chloride
01/03/24 14:083.350.150<0.150µg/m3Bromodichloromethane
01/03/24 14:085.170.153<0.153µg/m3Bromoform
01/03/24 14:081.940.115<0.115µg/m3Bromomethane
01/03/24 14:081.110.328<0.328µg/m31,3-Butadiene
01/03/24 14:086.230.0600.239µg/m3Carbon Disulfide
01/03/24 14:083.150.155<0.155µg/m3Carbon Tetrachloride
01/03/24 14:082.300.107<0.107µg/m3Chlorobenzene
01/03/24 14:084.260.208<0.208µg/m3Chlorodibromomethane
01/03/24 14:081.320.164<0.164µg/m3Chloroethane
01/03/24 14:082.440.086<0.086µg/m3Chloroform
01/03/24 14:081.030.067<0.067µg/m3Chloromethane
01/03/24 14:083.440.161<0.161µg/m3Cyclohexane
01/03/24 14:083.840.151<0.151µg/m31,2-Dibromoethane
01/03/24 14:083.010.096<0.096µg/m31,2-Dichlorobenzene
01/03/24 14:0812.00.174<0.174µg/m31,3-Dichlorobenzene
01/03/24 14:083.010.186<0.186µg/m31,4-Dichlorobenzene
01/03/24 14:082.470.134<0.134µg/m3Dichlorodifluoromethane
01/03/24 14:082.020.101<0.101µg/m31,1-Dichloroethane
01/03/24 14:082.020.129<0.129µg/m31,2-Dichloroethane
01/03/24 14:081.980.107<0.107µg/m31,1-Dichloroethene
01/03/24 14:081.980.095<0.095µg/m3cis-1,2-Dichloroethene
01/03/24 14:081.980.108<0.108µg/m3trans-1,2-Dichloroethene
01/03/24 14:082.310.205<0.205µg/m31,2-Dichloropropane
01/03/24 14:083.500.622<0.622µg/m31,2-Dichlorotetrafluoroethane
01/03/24 14:082.270.178<0.178µg/m3cis-1,3-Dichloropropene
Page 1 of 6Date:01/05/2024 03:12 PM
Page 15 of 22
Quality Control Data
23-362-0019Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
Townes At Laso
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V41932QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V41929
Associated Lab Samples: 92818, 92819, 92820
LRB-V41929 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
01/03/24 14:082.270.178<0.178µg/m3trans-1,3-Dichloropropene
01/03/24 14:081.800.435<0.435µg/m31,4-Dioxane
01/03/24 14:081.800.136<0.136µg/m3Ethyl Acetate
01/03/24 14:082.170.106<0.106µg/m3Ethylbenzene
01/03/24 14:082.460.128<0.128µg/m34-Ethyltoluene
01/03/24 14:083.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane
01/03/24 14:082.050.143<0.143µg/m3Heptane
01/03/24 14:085.330.330<0.330µg/m3Hexachlorobutadiene
01/03/24 14:081.760.047<0.047µg/m3n-Hexane
01/03/24 14:082.050.285<0.285µg/m32-Hexanone
01/03/24 14:084.920.1390.575µg/m3Isopropyl Alcohol
01/03/24 14:081.800.033<0.033µg/m3Methyl tert-butyl ether (MTBE)
01/03/24 14:082.050.121<0.121µg/m34-Methyl-2-Pentanone
01/03/24 14:081.740.488<0.488µg/m3Methylene Chloride
01/03/24 14:082.620.183<0.183µg/m3Naphthalene
01/03/24 14:080.8600.242<0.242µg/m3Propene
01/03/24 14:082.130.124<0.124µg/m3Styrene
01/03/24 14:083.430.104<0.104µg/m31,1,2,2-Tetrachloroethane
01/03/24 14:083.390.181<0.181µg/m3Tetrachloroethene
01/03/24 14:081.470.107<0.107µg/m3Tetrahydrofuran
01/03/24 14:081.880.090<0.090µg/m3Toluene
01/03/24 14:083.710.209<0.209µg/m31,2,4-Trichlorobenzene
01/03/24 14:082.730.144<0.144µg/m31,1,1-Trichloroethane
01/03/24 14:082.730.087<0.087µg/m31,1,2-Trichloroethane
01/03/24 14:082.150.199<0.199µg/m3Trichloroethene
01/03/24 14:082.810.130<0.130µg/m3Trichlorofluoromethane
01/03/24 14:082.460.110<0.110µg/m31,2,4-Trimethylbenzene
Page 2 of 6Date:01/05/2024 03:12 PM
Page 16 of 22
Quality Control Data
23-362-0019Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
Townes At Laso
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V41932QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V41929
Associated Lab Samples: 92818, 92819, 92820
LRB-V41929 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
01/03/24 14:082.460.236<0.236µg/m31,3,5-Trimethylbenzene
01/03/24 14:081.760.224<0.224µg/m3Vinyl Acetate
01/03/24 14:081.280.127<0.127µg/m3Vinyl Chloride
01/03/24 14:082.170.157<0.157µg/m3o-Xylene
01/03/24 14:085.650.217<0.217µg/m3m,p-Xylene
01/03/24 14:084-Bromofluorobenzene (S)98.6 70-130
LCS-V41929Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
11217.916.0µg/m3Benzene 70-130
98.025.425.9µg/m3Benzyl Chloride 70-130
11739.233.5µg/m3Bromodichloromethane 70-130
10353.051.7µg/m3Bromoform 70-130
11221.819.4µg/m3Bromomethane 70-130
10011.111.1µg/m31,3-Butadiene 70-130
11317.615.6µg/m3Carbon Disulfide 70-130
11636.631.5µg/m3Carbon Tetrachloride 70-130
10724.623.0µg/m3Chlorobenzene 70-130
10544.942.6µg/m3Chlorodibromomethane 70-130
10513.813.2µg/m3Chloroethane 70-130
11828.824.4µg/m3Chloroform 70-130
10010.310.3µg/m3Chloromethane 70-130
10918.717.2µg/m3Cyclohexane 70-130
10640.838.4µg/m31,2-Dibromoethane 70-130
11133.430.1µg/m31,2-Dichlorobenzene 70-130
11334.030.1µg/m31,3-Dichlorobenzene 70-130
Page 3 of 6Date:01/05/2024 03:12 PM
Page 17 of 22
Quality Control Data
23-362-0019Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
Townes At Laso
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V41932QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V41929
LCS-V41929Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
11233.830.1µg/m31,4-Dichlorobenzene 70-130
12029.624.7µg/m3Dichlorodifluoromethane 70-130
11222.620.2µg/m31,1-Dichloroethane 70-130
12625.520.2µg/m31,2-Dichloroethane 70-130
11422.619.8µg/m31,1-Dichloroethene 70-130
11622.919.8µg/m3cis-1,2-Dichloroethene 70-130
11623.019.8µg/m3trans-1,2-Dichloroethene 70-130
10724.823.1µg/m31,2-Dichloropropane 70-130
11740.935.0µg/m31,2-Dichlorotetrafluoroethane 70-130
11325.622.7µg/m3cis-1,3-Dichloropropene 70-130
11225.422.7µg/m3trans-1,3-Dichloropropene 70-130
11120.018.0µg/m31,4-Dioxane 70-130
10619.118.0µg/m3Ethyl Acetate 70-130
10522.721.7µg/m3Ethylbenzene 70-130
10826.524.6µg/m34-Ethyltoluene 70-130
11945.538.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130
10722.020.5µg/m3Heptane 70-130
10556.253.3µg/m3Hexachlorobutadiene 70-130
10418.317.6µg/m3n-Hexane 70-130
93.619.220.5µg/m32-Hexanone 70-130
90.211.112.3µg/m3Isopropyl Alcohol 70-130
11320.318.0µg/m3Methyl tert-butyl ether (MTBE)70-130
10221.020.5µg/m34-Methyl-2-Pentanone 70-130
10318.017.4µg/m3Methylene Chloride 70-130
10928.526.2µg/m3Naphthalene 70-130
90.57.808.61µg/m3Propene 70-130
10221.721.3µg/m3Styrene 70-130
Page 4 of 6Date:01/05/2024 03:12 PM
Page 18 of 22
Quality Control Data
23-362-0019Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
Townes At Laso
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V41932QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V41929
LCS-V41929Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10937.434.3µg/m31,1,2,2-Tetrachloroethane 70-130
11739.533.9µg/m3Tetrachloroethene 70-130
10215.014.7µg/m3Tetrahydrofuran 70-130
11421.418.8µg/m3Toluene 70-130
11040.937.1µg/m31,2,4-Trichlorobenzene 70-130
11732.027.3µg/m31,1,1-Trichloroethane 70-130
10628.927.3µg/m31,1,2-Trichloroethane 70-130
11731.626.9µg/m3Trichloroethene 70-130
12334.528.1µg/m3Trichlorofluoromethane 70-130
11327.924.6µg/m31,2,4-Trimethylbenzene 70-130
11227.624.6µg/m31,3,5-Trimethylbenzene 70-130
97.117.117.6µg/m3Vinyl Acetate 70-130
10713.712.8µg/m3Vinyl Chloride 70-130
11023.821.7µg/m3o-Xylene 70-130
10947.343.4µg/m3m,p-Xylene 70-130
1034-Bromofluorobenzene (S)70-130
Page 5 of 6Date:01/05/2024 03:12 PM
Page 19 of 22
Quality Control Data
23-362-0019Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
Townes At Laso
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V42005QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V41979
Associated Lab Samples: 92818, 92819, 92820
LRB-V41979 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
01/02/24 13:174.750.2020.382µg/m3Acetone
01/02/24 13:171.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK)
01/02/24 13:174-Bromofluorobenzene (S)99.1 70-130
LCS-V41979Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10112.011.9µg/m3Acetone 70-130
10014.814.8µg/m3Methyl Ethyl Ketone (MEK)70-130
1054-Bromofluorobenzene (S)70-130
Page 6 of 6Date:01/05/2024 03:12 PM
Page 20 of 22
Fed Ex
UPS
US Postal
Client
Lab
Courier
Other :
Shipment Receipt Form
Customer Number:
Customer Name:
Report Number:23-362-0019
Hart & Hickman (Charlotte)
01102
Shipping Method
Shipping container/cooler uncompromised?
Thermometer ID:NA
Chain of Custody (COC) present?Yes No
Yes No Not Present
Yes No Not Present
Yes No
COC agrees with sample label(s)? Yes No
COC properly completed
Samples in proper containers?
Sample containers intact?
Sufficient sample volume for indicated test(s)?
All samples received within holding time?
Cooler temperature in compliance?
Yes No
Yes No
Yes No
Yes No
Yes No
Yes NoCooler/Samples arrived at the laboratory on ice.
Samples were considered acceptable as cooling
process had begun.
Yes No
Yes No N/A
Yes No N/A
Yes No N/ASoil VOA method 5035 – compliance criteria met
Water - Sample containers properly preserved
Water - VOA vials free of headspace Yes No N/A
Trip Blanks received with VOAs
Low concentration EnCore samplers (48 hr)
High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)
High concentration container (48 hr)
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Number of coolers/boxes received
Yes No
1
Signature:Angelo Norvell Date & Time:12/28/2023 16:30:48
Special precautions or instructions included?
Comments:
Page 21 of 22
Page 22 of 22

Appendix G
PVC Primer and PVC Glue Material Safety Data Sheets
SAFETY DATA SHEET
1. Identification
Oatey Purple Primer- NSF Listed for PVC and CPVCProduct identifier
Other means of identification
1402CSDS number
Part Numbers: 30755(TV), 30756(TV), 30757(TV), 30758, 30759, 30927, 31480, 31481, 31482,
31483Synonyms
Joining PVC PipesRecommended use
None known.Recommended restrictions
Manufacturer/Importer/Supplier/Distributor information
Company Name Oatey Co.
Address 4700 West 160th St.
Cleveland, OH 44135
Telephone [phone]
E-mail [e-mail]
Transport Emergency Chemtrec 1-800-424-9300 (Outside the US 1-703-527-3887)
Emergency First Aid 1-877-740-5015
Contact person MSDS Coordinator
2. Hazard(s) identification
Category 2Flammable liquidsPhysical hazards
Category 1Physical hazards not otherwise classified
Category 4Acute toxicity, oralHealth hazards
Category 2Skin corrosion/irritation
Category 2ASerious eye damage/eye irritation
Category 3 respiratory tract irritationSpecific target organ toxicity, single exposure
Category 3 narcotic effectsSpecific target organ toxicity, single exposure
Category 1Aspiration hazard
Category 1Health hazards not otherwise classified
Not classified.Environmental hazards
Label elements
Signal word Danger
Hazard statement Highly flammable liquid and vapor. Harmful if swallowed. May be fatal if swallowed and enters
airways. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. May
cause drowsiness or dizziness.
Precautionary statement
Prevention Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
Keep container tightly closed. Ground/bond container and receiving equipment. Use
explosion-proof electrical/ventilating/lighting/equipment. Use non-sparking tools. Take action to
prevent static discharges. Avoid breathing mist or vapor. Wash thoroughly after handling. Do not
eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Wear
protective gloves/protective clothing/eye protection/face protection.
Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada
926733 Version #: 01 Revision date: - Issue date: 21-December-2015 1 / 9
Response IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. IF ON SKIN (or hair):
Take off immediately all contaminated clothing. Rinse skin with water. IF INHALED: Remove
victim to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse
cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. Rinse mouth. Do
NOT induce vomiting. Take off contaminated clothing and wash it before reuse. In case of fire:
Use appropriate media to extinguish.
Storage Keep cool. Store in a well-ventilated place. Keep container tightly closed. Store locked up.
Disposal Dispose of contents/container in accordance with local/regional/national/international regulations.
Other hazards Frequent or prolonged contact may defat and dry the skin, leading to discomfort and dermatitis.
May form explosive peroxides.
Supplemental information Not applicable.
3. Composition/information on ingredients
Mixtures
67-64-1 25-40Acetone
CAS number %Chemical name
108-94-1 25-40Cyclohexanone
78-93-3 15-30Methyl ethyl ketone
All concentrations are in percent by weight unless ingredient is a gas. Gas concentrations are in percent by volume.
4. First-aid measures
Remove victim to fresh air and keep at rest in a position comfortable for breathing. Call a POISON
CENTER or doctor/physician if you feel unwell.
Inhalation
Take off immediately all contaminated clothing. Wash with plenty of soap and water. If skin
irritation occurs: Get medical advice/attention.
Skin contact
Immediately flush eyes with plenty of water for at least 15 minutes. Remove contact lenses, if
present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice/attention.
Eye contact
Call a physician or poison control center immediately. Do not induce vomiting. If vomiting occurs,
keep head low so that stomach content doesn't get into the lungs. Aspiration may cause
pulmonary edema and pneumonitis.
Ingestion
Irritation of nose and throat. Aspiration may cause pulmonary edema and pneumonitis. Severe eye
irritation. Symptoms may include stinging, tearing, redness, swelling, and blurred vision. May
cause respiratory irritation. Vapors have a narcotic effect and may cause headache, fatigue,
dizziness and nausea. Skin irritation. May cause redness and pain.
Most important
symptoms/effects, acute and
delayed
Provide general supportive measures and treat symptomatically. Thermal burns: Flush with water
immediately. While flushing, remove clothes which do not adhere to affected area. Call an
ambulance. Continue flushing during transport to hospital. In case of shortness of breath, give
oxygen. Keep victim warm. Keep victim under observation. Symptoms may be delayed.
Indication of immediate
medical attention and special
treatment needed
Take off all contaminated clothing immediately. IF exposed or concerned: Get medical
advice/attention. Ensure that medical personnel are aware of the material(s) involved, and take
precautions to protect themselves. Wash contaminated clothing before reuse.
General information
5. Fire-fighting measures
Alcohol resistant foam. Water fog. Dry chemical powder. Carbon dioxide (CO2).Suitable extinguishing media
Do not use water jet as an extinguisher, as this will spread the fire.Unsuitable extinguishing
media
Vapors may form explosive mixtures with air. Vapors may travel considerable distance to a source
of ignition and flash back. During fire, gases hazardous to health may be formed.
Specific hazards arising from
the chemical
Self-contained breathing apparatus and full protective clothing must be worn in case of fire.Special protective equipment
and precautions for firefighters
In case of fire and/or explosion do not breathe fumes. Move containers from fire area if you can do
so without risk.
Fire fighting
equipment/instructions
Use standard firefighting procedures and consider the hazards of other involved materials. Cool
containers exposed to flames with water until well after the fire is out.Specific methods
Highly flammable liquid and vapor. This product contains tetrahydrofuran that may form explosive
organic peroxide when exposed to air or light or with age.
General fire hazards
Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada
926733 Version #: 01 Revision date: - Issue date: 21-December-2015 2 / 9
6. Accidental release measures
Keep unnecessary personnel away. Keep people away from and upwind of spill/leak. Keep out of
low areas. Eliminate all ignition sources (no smoking, flares, sparks, or flames in immediate area).
Wear appropriate protective equipment and clothing during clean-up. Avoid inhalation of vapors or
mists. Do not touch damaged containers or spilled material unless wearing appropriate protective
clothing. Ventilate closed spaces before entering them. Local authorities should be advised if
significant spillages cannot be contained. For personal protection, see section 8 of the SDS.
Personal precautions,
protective equipment and
emergency procedures
Eliminate all ignition sources (no smoking, flares, sparks, or flames in immediate area). Take
precautionary measures against static discharge. Use only non-sparking tools. Keep combustibles
(wood, paper, oil, etc.) away from spilled material.
Large Spills: Stop the flow of material, if this is without risk. Dike the spilled material, where this is
possible. Cover with plastic sheet to prevent spreading. Use a non-combustible material like
vermiculite, sand or earth to soak up the product and place into a container for later disposal. Use
water spray to reduce vapors or divert vapor cloud drift. Following product recovery, flush area with
water.
Small Spills: Wipe up with absorbent material (e.g. cloth, fleece). Clean surface thoroughly to
remove residual contamination.
Never return spills to original containers for re-use. This product is miscible in water. For waste
disposal, see section 13 of the SDS.
Methods and materials for
containment and cleaning up
Avoid discharge into drains, water courses or onto the ground.Environmental precautions
7. Handling and storage
Vapors may form explosive mixtures with air. Do not handle, store or open near an open flame,
sources of heat or sources of ignition. Protect material from direct sunlight. Take precautionary
measures against static discharges. All equipment used when handling the product must be
grounded. Use non-sparking tools and explosion-proof equipment. Do not taste or swallow. Avoid
breathing mist or vapor. Avoid contact with skin. Avoid contact with eyes. Avoid prolonged
exposure. Avoid contact with clothing. Provide adequate ventilation. Wear appropriate personal
protective equipment. Observe good industrial hygiene practices. When using, do not eat, drink or
smoke. Wash hands thoroughly after handling.
Precautions for safe handling
Store locked up. Keep away from heat, sparks and open flame. Prevent electrostatic charge
build-up by using common bonding and grounding techniques. Store in original tightly closed
container. Store in a cool, dry place out of direct sunlight. Store in a well-ventilated place. Store
away from incompatible materials (see Section 10 of the SDS). Keep in an area equipped with
sprinklers.
Conditions for safe storage,
including any incompatibilities
8. Exposure controls/personal protection
Occupational exposure limits
US. ACGIH Threshold Limit Values
ValueTypeComponents
STEL 500 ppmAcetone (CAS 67-64-1)
TWA 250 ppm
STEL 50 ppmCyclohexanone (CAS
108-94-1)
TWA 20 ppm
STEL 300 ppmMethyl ethyl ketone (CAS
78-93-3)
TWA 200 ppm
Canada. Alberta OELs (Occupational Health & Safety Code, Schedule 1, Table 2)
ValueTypeComponents
STEL 1800 mg/m3Acetone (CAS 67-64-1)
750 ppm
TWA 1200 mg/m3
500 ppm
STEL 200 mg/m3Cyclohexanone (CAS
108-94-1)
50 ppm
TWA 80 mg/m3
20 ppm
Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada
926733 Version #: 01 Revision date: - Issue date: 21-December-2015 3 / 9
Canada. Alberta OELs (Occupational Health & Safety Code, Schedule 1, Table 2)
ValueTypeComponents
STEL 885 mg/m3Methyl ethyl ketone (CAS
78-93-3)
300 ppm
TWA 590 mg/m3
200 ppm
Canada. British Columbia OELs. (Occupational Exposure Limits for Chemical Substances, Occupational Health and
Safety Regulation 296/97, as amended)
ValueTypeComponents
STEL 500 ppmAcetone (CAS 67-64-1)
TWA 250 ppm
STEL 50 ppmCyclohexanone (CAS
108-94-1)
TWA 20 ppm
STEL 100 ppmMethyl ethyl ketone (CAS
78-93-3)
TWA 50 ppm
Canada. Manitoba OELs (Reg. 217/2006, The Workplace Safety And Health Act)
ValueTypeComponents
STEL 500 ppmAcetone (CAS 67-64-1)
TWA 250 ppm
STEL 50 ppmCyclohexanone (CAS
108-94-1)
TWA 20 ppm
STEL 300 ppmMethyl ethyl ketone (CAS
78-93-3)
TWA 200 ppm
Canada. Ontario OELs. (Control of Exposure to Biological or Chemical Agents)
ValueTypeComponents
STEL 750 ppmAcetone (CAS 67-64-1)
TWA 500 ppm
STEL 50 ppmCyclohexanone (CAS
108-94-1)
TWA 20 ppm
STEL 300 ppmMethyl ethyl ketone (CAS
78-93-3)
TWA 200 ppm
Canada. Quebec OELs. (Ministry of Labor - Regulation Respecting the Quality of the Work Environment)
ValueTypeComponents
STEL 2380 mg/m3Acetone (CAS 67-64-1)
1000 ppm
TWA 1190 mg/m3
500 ppm
TWA 100 mg/m3Cyclohexanone (CAS
108-94-1)
25 ppm
STEL 300 mg/m3Methyl ethyl ketone (CAS
78-93-3)
100 ppm
TWA 150 mg/m3
50 ppm
Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada
926733 Version #: 01 Revision date: - Issue date: 21-December-2015 4 / 9
Biological limit values
ACGIH Biological Exposure Indices
Value Sampling TimeDeterminant SpecimenComponents
25 mg/l Acetone Urine *Acetone (CAS 67-64-1)
80 mg/l 1,2-Cyclohexan
ediol,with
hydrolysis
Urine *Cyclohexanone (CAS
108-94-1)
8 mg/l Cyclohexanol,
with hydrolysis
Urine *
2 mg/l MEK Urine *Methyl ethyl ketone (CAS
78-93-3)
* - For sampling details, please see the source document.
Exposure guidelines
Canada - Alberta OELs: Skin designation
Cyclohexanone (CAS 108-94-1) Can be absorbed through the skin.
Canada - British Columbia OELs: Skin designation
Cyclohexanone (CAS 108-94-1) Can be absorbed through the skin.
Canada - Manitoba OELs: Skin designation
Cyclohexanone (CAS 108-94-1) Can be absorbed through the skin.
Canada - Ontario OELs: Skin designation
Cyclohexanone (CAS 108-94-1) Can be absorbed through the skin.
Canada - Quebec OELs: Skin designation
Cyclohexanone (CAS 108-94-1) Can be absorbed through the skin.
Canada - Saskatchewan OELs: Skin designation
Cyclohexanone (CAS 108-94-1) Can be absorbed through the skin.
US ACGIH Threshold Limit Values: Skin designation
Cyclohexanone (CAS 108-94-1) Can be absorbed through the skin.
Explosion-proof general and local exhaust ventilation. Good general ventilation (typically 10 air
changes per hour) should be used. Ventilation rates should be matched to conditions. If
applicable, use process enclosures, local exhaust ventilation, or other engineering controls to
maintain airborne levels below recommended exposure limits. If exposure limits have not been
established, maintain airborne levels to an acceptable level. Eye wash facilities and emergency
shower must be available when handling this product.
Appropriate engineering
controls
Individual protection measures, such as personal protective equipment
Wear safety glasses with side shields (or goggles).Eye/face protection
Skin protection
Wear appropriate chemical resistant gloves.Hand protection
Wear appropriate chemical resistant clothing.Other
If engineering controls do not maintain airborne concentrations below recommended exposure
limits (where applicable) or to an acceptable level (in countries where exposure limits have not
been established), an approved respirator must be worn.
Respiratory protection
Wear appropriate thermal protective clothing, when necessary.Thermal hazards
When using, do not eat, drink or smoke. Always observe good personal hygiene measures, such
as washing after handling the material and before eating, drinking, and/or smoking. Routinely wash
work clothing and protective equipment to remove contaminants.
General hygiene
considerations
9. Physical and chemical properties
Appearance
Liquid.Physical state
Translucent liquid.Form
PurpleColor
Solvent.Odor
Odor threshold Not available.
pH Not available.
Melting point/freezing point Not available.
Initial boiling point and boiling
range
151 °F (66.11 °C)
Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada
926733 Version #: 01 Revision date: - Issue date: 21-December-2015 5 / 9
Flash point 14.0 - 23.0 °F (-10.0 - -5.0 °C)
Evaporation rate 5.5 - 8
Not available.Flammability (solid, gas)
Upper/lower flammability or explosive limits
Flammability limit - lower
(%)
1.8
Flammability limit - upper
(%)
11.8
Explosive limit - lower (%)Not available.
Explosive limit - upper (%)Not available.
Vapor pressure 145 mm Hg @ 20 C
Vapor density 2.5
Relative density 0.84 +/- 0.02 @20°C
Solubility(ies)
Solubility (water)Negligible
Partition coefficient
(n-octanol/water)
Not available.
Auto-ignition temperature Not available.
Decomposition temperature Not available.
Viscosity Not available.
Other information
Bulk density 7 lb/gal
VOC (Weight %)505 g/l SQACMD Method 24
10. Stability and reactivity
The product is stable and non-reactive under normal conditions of use, storage and transport.Reactivity
Material is stable under normal conditions.Chemical stability
No dangerous reaction known under conditions of normal use.Possibility of hazardous
reactions
Avoid heat, sparks, open flames and other ignition sources. Avoid temperatures exceeding the
flash point. Contact with incompatible materials.
Conditions to avoid
Acids. Strong oxidizing agents. Ammonia. Amines. Isocyanates. Caustics.Incompatible materials
No hazardous decomposition products are known.Hazardous decomposition
products
11. Toxicological information
Information on likely routes of exposure
Inhalation May be fatal if swallowed and enters airways. May cause irritation to the respiratory system.
Vapors have a narcotic effect and may cause headache, fatigue, dizziness and nausea.
Prolonged inhalation may be harmful.
Skin contact Causes skin irritation.
Eye contact Causes serious eye irritation.
Ingestion May be fatal if swallowed and enters airways. Harmful if swallowed.
Symptoms related to the
physical, chemical and
toxicological characteristics
Irritation of nose and throat. Aspiration may cause pulmonary edema and pneumonitis. Severe
eye irritation. Symptoms may include stinging, tearing, redness, swelling, and blurred vision. Skin
irritation. May cause redness and pain. Symptoms of overexposure may be headache, dizziness,
tiredness, nausea and vomiting.
Information on toxicological effects
Acute toxicity May be fatal if swallowed and enters airways. Narcotic effects. May cause respiratory irritation.
Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada
926733 Version #: 01 Revision date: - Issue date: 21-December-2015 6 / 9
Test ResultsComponents Species
Acetone (CAS 67-64-1)
LD50 Rabbit
Dermal
Acute
20 ml/kg
LC50 Rat
Inhalation
50 mg/l, 8 Hours
LD50 Rat
Oral
5800 mg/kg
Cyclohexanone (CAS 108-94-1)
LD50 Rabbit
Dermal
Acute
948 mg/kg
LC50 Rat
Inhalation
8000 ppm, 4 hours
LD50 Rat
Oral
800 mg/kg
* Estimates for product may be based on additional component data not shown.
Causes skin irritation.Skin corrosion/irritation
Causes serious eye irritation.Serious eye damage/eye
irritation
Respiratory or skin sensitization
Respiratory sensitization Not available.
This product is not expected to cause skin sensitization.Skin sensitization
No data available to indicate product or any components present at greater than 0.1% are
mutagenic or genotoxic.
Germ cell mutagenicity
Carcinogenicity In 2012 USEPA Integrated Risk Information System (IRIS) reviewed a two species inhalation
lifetime study on THF conducted by NTP (1998). Male rats developed renal tumors and female
mice developed liver tumors while neither the female rats nor the male mice showed similar
results. Because the carcinogenic mechanisms could not be identified clearly in either species for
either tumor, the EPA determined that the male rat and female mouse findings are relevant to the
assessment of carcinogenic potential in humans. Therefore, the IRIS review concludes that these
data in aggregate indicate that there is "suggestive evidence of carcinogenic potential" following
exposure to THF by all routes of exposure.
ACGIH Carcinogens
Acetone (CAS 67-64-1) A4 Not classifiable as a human carcinogen.
Cyclohexanone (CAS 108-94-1) A3 Confirmed animal carcinogen with unknown relevance to
humans.
Canada - Manitoba OELs: carcinogenicity
ACETONE (CAS 67-64-1) Not classifiable as a human carcinogen.
CYCLOHEXANONE (CAS 108-94-1) Confirmed animal carcinogen with unknown relevance to humans.
IARC Monographs. Overall Evaluation of Carcinogenicity
Cyclohexanone (CAS 108-94-1) 3 Not classifiable as to carcinogenicity to humans.
This product is not expected to cause reproductive or developmental effects.Reproductive toxicity
Specific target organ toxicity -
single exposure
Narcotic effects. Respiratory tract irritation.
Specific target organ toxicity -
repeated exposure
Not classified.
Aspiration hazard May be fatal if swallowed and enters airways.
Chronic effects Prolonged inhalation may be harmful.
12. Ecological information
The product is not classified as environmentally hazardous. However, this does not exclude the
possibility that large or frequent spills can have a harmful or damaging effect on the environment.
Ecotoxicity
Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada
926733 Version #: 01 Revision date: - Issue date: 21-December-2015 7 / 9
Components Test ResultsSpecies
Acetone (CAS 67-64-1)
Aquatic
LC50Fish > 100 mg/l, 96 hoursFathead minnow (Pimephales promelas)
* Estimates for product may be based on additional component data not shown.
Cyclohexanone (CAS 108-94-1)
Aquatic
LC50Fish 481 - 578 mg/l, 96 hoursFathead minnow (Pimephales promelas)
No data is available on the degradability of this product.Persistence and degradability
No data available.Bioaccumulative potential
Partition coefficient n-octanol / water (log Kow)
Acetone (CAS 67-64-1) -0.24
Cyclohexanone (CAS 108-94-1) 0.81
Methyl ethyl ketone (CAS 78-93-3) 0.29
No data available.Mobility in soil
Other adverse effects No other adverse environmental effects (e.g. ozone depletion, photochemical ozone creation
potential, endocrine disruption, global warming potential) are expected from this component.
13. Disposal considerations
Collect and reclaim or dispose in sealed containers at licensed waste disposal site. This material
and its container must be disposed of as hazardous waste. Do not allow this material to drain into
sewers/water supplies. Do not contaminate ponds, waterways or ditches with chemical or used
container. Dispose of contents/container in accordance with local/regional/national/international
regulations.
Disposal instructions
Dispose in accordance with all applicable regulations.Local disposal regulations
The waste code should be assigned in discussion between the user, the producer and the waste
disposal company.
Hazardous waste code
Dispose of in accordance with local regulations. Empty containers or liners may retain some
product residues. This material and its container must be disposed of in a safe manner (see:
Disposal instructions).
Waste from residues / unused
products
Since emptied containers may retain product residue, follow label warnings even after container is
emptied. Empty containers should be taken to an approved waste handling site for recycling or
disposal.
Contaminated packaging
14. Transport information
TDG
UN1993UN number
FLAMMABLE LIQUID, N.O.S. (Methyl ethyl ketone, Acetone)UN proper shipping name
3Class
Transport hazard class(es)
-Subsidiary risk
IIPacking group
DEnvironmental hazards
Read safety instructions, SDS and emergency procedures before handling.Special precautions for user
IATA
UN1993UN number
Flammable liquid, n.o.s. (Methyl ethyl ketone, Acetone)UN proper shipping name
3Class
Transport hazard class(es)
-Subsidiary risk
IIPacking group
No.Environmental hazards
3HERG Code
Read safety instructions, SDS and emergency procedures before handling.Special precautions for user
IMDG
UN1993UN number
FLAMMABLE LIQUID, N.O.S. (Methyl ethyl ketone, Acetone)UN proper shipping name
Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada
926733 Version #: 01 Revision date: - Issue date: 21-December-2015 8 / 9
3Class
Transport hazard class(es)
-Subsidiary risk
IIPacking group
No.Marine pollutant
Environmental hazards
F-E, S-EEmS
Read safety instructions, SDS and emergency procedures before handling.Special precautions for user
Not available.Transport in bulk according to
Annex II of MARPOL 73/78 and
the IBC Code
15. Regulatory information
This product has been classified in accordance with the hazard criteria of the HPR and the SDS
contains all the information required by the HPR.
Canadian regulations
Controlled Drugs and Substances Act
Not regulated.
Export Control List (CEPA 1999, Schedule 3)
Not listed.
Greenhouse Gases
Not listed.
Precursor Control Regulations
Acetone (CAS 67-64-1) Class B
Methyl ethyl ketone (CAS 78-93-3) Class B
International regulations
Stockholm Convention
Not applicable.
Rotterdam Convention
Not applicable.
Kyoto protocol
Not applicable.
Montreal Protocol
Not applicable.
Basel Convention
Not applicable.
International Inventories
Country(s) or region Inventory name On inventory (yes/no)*
Domestic Substances List (DSL) YesCanada
Non-Domestic Substances List (NDSL) NoCanada
*A "Yes" indicates this product complies with the inventory requirements administered by the governing country(s).
A "No" indicates that one or more components of the product are not listed or exempt from listing on the inventory administered by the governing
country(s).
Toxic Substances Control Act (TSCA) Inventory YesUnited States & Puerto Rico
16. Other Information
21-December-2015Issue date
-Revision date
Version #01
Oatey Co. cannot anticipate all conditions under which this information and its product, or the
products of other manufacturers in combination with its product, may be used. It is the user’s
responsibility to ensure safe conditions for handling, storage and disposal of the product, and to
assume liability for loss, injury, damage or expense due to improper use. The information in the
sheet was written based on the best knowledge and experience currently available.
Disclaimer
Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada
926733 Version #: 01 Revision date: - Issue date: 21-December-2015 9 / 9
SAFETY DATA SHEET
1. Identification
PVC Regular Clear CementProduct identifier
Other means of identification
1100EProduct code
Part Numbers: 31012, 31013, 31014, 31015, 31016, 31958, 31959, 31960, 31961Synonyms
Joining PVC PipesRecommended use
None known.Recommended restrictions
Manufacturer/Importer/Supplier/Distributor information
Company Name Oatey Co.
Address 4700 West 160th St.
Cleveland, OH 44135
Telephone [phone]
E-mail [e-mail]
Transport Emergency Chemtrec 1-800-424-9300 (Outside the US 1-703-527-3887)
Emergency First Aid 1-877-740-5015
Contact person MSDS Coordinator
2. Hazard(s) identification
Category 2Flammable liquidsPhysical hazards
Category 4Acute toxicity, oralHealth hazards
Category 2Skin corrosion/irritation
Category 2ASerious eye damage/eye irritation
Category 3 respiratory tract irritationSpecific target organ toxicity, single exposure
Category 3 narcotic effectsSpecific target organ toxicity, single exposure
Category 1Aspiration hazard
Not classified.OSHA defined hazards
Label elements
Signal word Danger
Hazard statement Highly flammable liquid and vapor. Harmful if swallowed. May be fatal if swallowed and enters
airways. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. May
cause drowsiness or dizziness.
Precautionary statement
Prevention Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Keep container tightly
closed. Ground/bond container and receiving equipment. Use explosion-proof
electrical/ventilating/lighting equipment. Use only non-sparking tools. Take precautionary
measures against static discharge. Avoid breathing mist or vapor. Wash thoroughly after
handling. Do not eat, drink or smoke when using this product. Use only outdoors or in a
well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection.
Response If swallowed: Immediately call a poison center/doctor. If on skin (or hair): Take off immediately all
contaminated clothing. Rinse skin with water/shower. If inhaled: Remove person to fresh air and
keep comfortable for breathing. If in eyes: Rinse cautiously with water for several minutes.
Remove contact lenses, if present and easy to do. Continue rinsing. Call a poison center/doctor if
you feel unwell. Rinse mouth. Do NOT induce vomiting. If skin irritation occurs: Get medical
advice/attention. If eye irritation persists: Get medical advice/attention. Take off contaminated
clothing and wash before reuse. In case of fire: Use appropriate media to extinguish.
SDS USPVC Regular Clear Cement
927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 1 / 10
Storage Store in a well-ventilated place. Keep container tightly closed. Keep cool. Store locked up.
Disposal Dispose of contents/container in accordance with local/regional/national/international regulations.
Hazard(s) not otherwise
classified (HNOC)
Frequent or prolonged contact may defat and dry the skin, leading to discomfort and dermatitis.
May form explosive peroxides. Contains a chemical classified by the US EPA as a suspected
possible carcinogen.
Supplemental information
Not applicable.
3. Composition/information on ingredients
Mixtures
78-93-3 25-40Methyl ethyl ketone
CAS number %Chemical name
108-94-1 10-25Cyclohexanone
109-99-9 10-25Furan, Tetrahydro-
67-64-1 5-15Acetone
9002-86-2 5-15Polyvinyl chloride
*Designates that a specific chemical identity and/or percentage of composition has been withheld as a trade secret.
4. First-aid measures
Remove victim to fresh air and keep at rest in a position comfortable for breathing. Call a POISON
CENTER or doctor/physician if you feel unwell.Inhalation
Take off immediately all contaminated clothing. Wash with plenty of soap and water. If skin
irritation occurs: Get medical advice/attention.
Skin contact
Immediately flush eyes with plenty of water for at least 15 minutes. Remove contact lenses, if
present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice/attention.Eye contact
Call a physician or poison control center immediately. Do not induce vomiting. If vomiting occurs,
keep head low so that stomach content doesn't get into the lungs. Aspiration may cause
pulmonary edema and pneumonitis.
Ingestion
Irritation of nose and throat. Aspiration may cause pulmonary edema and pneumonitis. Severe eye
irritation. Symptoms may include stinging, tearing, redness, swelling, and blurred vision. May
cause respiratory irritation. Vapors have a narcotic effect and may cause headache, fatigue,
dizziness and nausea. Skin irritation. May cause redness and pain.
Most important
symptoms/effects, acute and
delayed
Provide general supportive measures and treat symptomatically. Thermal burns: Flush with water
immediately. While flushing, remove clothes which do not adhere to affected area. Call an
ambulance. Continue flushing during transport to hospital. In case of shortness of breath, give
oxygen. Keep victim warm. Keep victim under observation. Symptoms may be delayed.
Indication of immediate
medical attention and special
treatment needed
Take off all contaminated clothing immediately. Ensure that medical personnel are aware of the
material(s) involved, and take precautions to protect themselves. Wash contaminated clothing
before reuse.
General information
5. Fire-fighting measures
Alcohol resistant foam. Water fog. Dry chemical powder. Carbon dioxide (CO2).Suitable extinguishing media
Do not use water jet as an extinguisher, as this will spread the fire.Unsuitable extinguishing
media
Vapors may form explosive mixtures with air. Vapors may travel considerable distance to a source
of ignition and flash back. During fire, gases hazardous to health may be formed.
Specific hazards arising from
the chemical
Self-contained breathing apparatus and full protective clothing must be worn in case of fire.Special protective equipment
and precautions for firefighters
In case of fire and/or explosion do not breathe fumes. Move containers from fire area if you can do
so without risk.
Fire fighting
equipment/instructions
Use standard firefighting procedures and consider the hazards of other involved materials.Specific methods
Highly flammable liquid and vapor. This product contains tetrahydrofuran that may form explosive
organic peroxide when exposed to air or light or with age.General fire hazards
SDS USPVC Regular Clear Cement
927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 2 / 10
6. Accidental release measures
Keep unnecessary personnel away. Keep people away from and upwind of spill/leak. Keep out of
low areas. Eliminate all ignition sources (no smoking, flares, sparks, or flames in immediate area).
Wear appropriate protective equipment and clothing during clean-up. Avoid breathing mist or
vapor. Do not touch damaged containers or spilled material unless wearing appropriate protective
clothing. Ventilate closed spaces before entering them. Local authorities should be advised if
significant spillages cannot be contained. For personal protection, see section 8 of the SDS.
Personal precautions,
protective equipment and
emergency procedures
Eliminate all ignition sources (no smoking, flares, sparks, or flames in immediate area). Take
precautionary measures against static discharge. Use only non-sparking tools. Keep combustibles
(wood, paper, oil, etc.) away from spilled material. This product is miscible in water.
Large Spills: Stop the flow of material, if this is without risk. Use water spray to reduce vapors or
divert vapor cloud drift. Dike the spilled material, where this is possible. Cover with plastic sheet to
prevent spreading. Use a non-combustible material like vermiculite, sand or earth to soak up the
product and place into a container for later disposal. Prevent entry into waterways, sewer,
basements or confined areas. Following product recovery, flush area with water.
Small Spills: Absorb with earth, sand or other non-combustible material and transfer to containers
for later disposal. Wipe up with absorbent material (e.g. cloth, fleece). Clean surface thoroughly to
remove residual contamination.
Never return spills to original containers for re-use. For waste disposal, see section 13 of the SDS.
Methods and materials for
containment and cleaning up
Avoid discharge into drains, water courses or onto the ground.Environmental precautions
7. Handling and storage
Vapors may form explosive mixtures with air. Do not handle, store or open near an open flame,
sources of heat or sources of ignition. Protect material from direct sunlight. Explosion-proof
general and local exhaust ventilation. Take precautionary measures against static discharges. All
equipment used when handling the product must be grounded. Use non-sparking tools and
explosion-proof equipment. Avoid breathing mist or vapor. Avoid contact with eyes, skin, and
clothing. Avoid prolonged exposure. Do not taste or swallow. When using, do not eat, drink or
smoke. Wear appropriate personal protective equipment. Wash hands thoroughly after handling.
Observe good industrial hygiene practices.
Precautions for safe handling
Store locked up. Keep away from heat, sparks and open flame. Prevent electrostatic charge
build-up by using common bonding and grounding techniques. Store in a cool, dry place out of
direct sunlight. Store in original tightly closed container. Store in a well-ventilated place. Store
away from incompatible materials (see Section 10 of the SDS).
Conditions for safe storage,
including any incompatibilities
8. Exposure controls/personal protection
Occupational exposure limits
US. OSHA Specifically Regulated Substances (29 CFR 1910.1001-1050)
ValueTypeComponents
STEL 5 ppmPolyvinyl chloride (CAS
9002-86-2)
TWA 1 ppm
US. OSHA Table Z-1 Limits for Air Contaminants (29 CFR 1910.1000)
ValueType FormComponents
PEL 2400 mg/m3Acetone (CAS 67-64-1)
1000 ppm
PEL 200 mg/m3Cyclohexanone (CAS
108-94-1)
50 ppm
PEL 590 mg/m3Furan, Tetrahydro- (CAS
109-99-9)
200 ppm
PEL 590 mg/m3Methyl ethyl ketone (CAS
78-93-3)
200 ppm
PEL 5 mg/m3 Respirable fraction.Polyvinyl chloride (CAS
9002-86-2)
15 mg/m3 Total dust.
PVC Regular Clear Cement SDS US
927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 3 / 10
US. ACGIH Threshold Limit Values
ValueType FormComponents
STEL 750 ppmAcetone (CAS 67-64-1)
TWA 500 ppm
STEL 50 ppmCyclohexanone (CAS
108-94-1)
TWA 20 ppm
STEL 100 ppmFuran, Tetrahydro- (CAS
109-99-9)
TWA 50 ppm
STEL 300 ppmMethyl ethyl ketone (CAS
78-93-3)
TWA 200 ppm
TWA 1 mg/m3 Respirable fraction.Polyvinyl chloride (CAS
9002-86-2)
US. NIOSH: Pocket Guide to Chemical Hazards
ValueTypeComponents
TWA 590 mg/m3Acetone (CAS 67-64-1)
250 ppm
TWA 100 mg/m3Cyclohexanone (CAS
108-94-1)
25 ppm
STEL 735 mg/m3Furan, Tetrahydro- (CAS
109-99-9)
250 ppm
TWA 590 mg/m3
200 ppm
STEL 885 mg/m3Methyl ethyl ketone (CAS
78-93-3)
300 ppm
TWA 590 mg/m3
200 ppm
Biological limit values
ACGIH Biological Exposure Indices
Value Sampling TimeDeterminant SpecimenComponents
50 mg/l Acetone Urine *Acetone (CAS 67-64-1)
80 mg/l 1,2-Cyclohexanediol,with
hydrolysis
Urine *Cyclohexanone (CAS
108-94-1)
8 mg/l Cyclohexanol,
with hydrolysis
Urine *
2 mg/l Tetrahydrofura
n
Urine *Furan, Tetrahydro- (CAS
109-99-9)
2 mg/l MEK Urine *Methyl ethyl ketone (CAS
78-93-3)
* - For sampling details, please see the source document.
Exposure guidelines
US - California OELs: Skin designation
Cyclohexanone (CAS 108-94-1)Can be absorbed through the skin.
US - Minnesota Haz Subs: Skin designation applies
Cyclohexanone (CAS 108-94-1)Skin designation applies.
US - Tennessee OELs: Skin designation
Cyclohexanone (CAS 108-94-1)Can be absorbed through the skin.
US ACGIH Threshold Limit Values: Skin designation
Cyclohexanone (CAS 108-94-1)Can be absorbed through the skin.
Furan, Tetrahydro- (CAS 109-99-9)Can be absorbed through the skin.
US. NIOSH: Pocket Guide to Chemical Hazards
Cyclohexanone (CAS 108-94-1)Can be absorbed through the skin.
SDS USPVC Regular Clear Cement
927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 4 / 10
Explosion-proof general and local exhaust ventilation. Good general ventilation (typically 10 air
changes per hour) should be used. Ventilation rates should be matched to conditions. If
applicable, use process enclosures, local exhaust ventilation, or other engineering controls to
maintain airborne levels below recommended exposure limits. If exposure limits have not been
established, maintain airborne levels to an acceptable level. Eye wash facilities and emergency
shower must be available when handling this product.
Appropriate engineering
controls
Individual protection measures, such as personal protective equipment
Face shield is recommended. Wear safety glasses with side shields (or goggles).Eye/face protection
Skin protection
Wear appropriate chemical resistant gloves.Hand protection
Wear appropriate chemical resistant clothing.Other
If engineering controls do not maintain airborne concentrations below recommended exposure
limits (where applicable) or to an acceptable level (in countries where exposure limits have not
been established), an approved respirator must be worn.
Respiratory protection
Wear appropriate thermal protective clothing, when necessary.Thermal hazards
When using, do not eat, drink or smoke. Always observe good personal hygiene measures, such
as washing after handling the material and before eating, drinking, and/or smoking. Routinely wash
work clothing and protective equipment to remove contaminants.
General hygiene
considerations
9. Physical and chemical properties
Appearance
Liquid.Physical state
Translucent liquid.Form
Clear.Color
Solvent.Odor
Odor threshold Not available.
pH Not available.
Melting point/freezing point Not available.
Initial boiling point and boiling
range
151 °F (66.11 °C)
Flash point -4.0 °F (-20.0 °C)
Evaporation rate 5.5 - 8
Not available.Flammability (solid, gas)
Upper/lower flammability or explosive limits
Flammability limit - lower
(%)
1.8
Flammability limit - upper
(%)
11.8
Explosive limit - lower (%)Not available.
Explosive limit - upper (%)Not available.
Vapor pressure 145 mm Hg @ 20 C
Vapor density 2.5
Relative density 0.9 +/- 0.02
Solubility(ies)
Solubility (water)Negligible
Partition coefficient
(n-octanol/water)
Not available.
Auto-ignition temperature Not available.
Decomposition temperature Not available.
Viscosity 80 - 500 cP
Other information
VOC (Weight %)<510 g/l SCAQMD 1168/M316A
10. Stability and reactivity
The product is stable and non-reactive under normal conditions of use, storage and transport.Reactivity
SDS USPVC Regular Clear Cement
927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 5 / 10
Material is stable under normal conditions.Chemical stability
No dangerous reaction known under conditions of normal use.Possibility of hazardous
reactions
Avoid heat, sparks, open flames and other ignition sources. Avoid temperatures exceeding the
flash point. Contact with incompatible materials.Conditions to avoid
Acids. Strong oxidizing agents. Ammonia. Amines. Isocyanates. Caustics.Incompatible materials
No hazardous decomposition products are known.Hazardous decomposition
products
11. Toxicological information
Information on likely routes of exposure
Inhalation May be fatal if swallowed and enters airways. Headache. Nausea, vomiting. May cause irritation
to the respiratory system. Vapors have a narcotic effect and may cause headache, fatigue,
dizziness and nausea. Prolonged inhalation may be harmful.
Skin contact Causes skin irritation.
Eye contact Causes serious eye irritation.
Ingestion May be fatal if swallowed and enters airways. Harmful if swallowed. Harmful if swallowed. Droplets
of the product aspirated into the lungs through ingestion or vomiting may cause a serious
chemical pneumonia.
Symptoms related to the
physical, chemical and
toxicological characteristics
Irritation of nose and throat. Aspiration may cause pulmonary edema and pneumonitis. Severe
eye irritation. Symptoms may include stinging, tearing, redness, swelling, and blurred vision. May
cause respiratory irritation. Skin irritation. May cause redness and pain. Symptoms of
overexposure may be headache, dizziness, tiredness, nausea and vomiting.
Information on toxicological effects
Acute toxicity May be fatal if swallowed and enters airways. Narcotic effects. May cause respiratory irritation.
Test ResultsComponentsSpecies
Acetone (CAS 67-64-1)
LD50 Rabbit
Dermal
Acute
20 ml/kg
LC50 Rat
Inhalation
50 mg/l, 8 Hours
LD50 Rat
Oral
5800 mg/kg
Cyclohexanone (CAS 108-94-1)
LD50 Rabbit
Dermal
Acute
948 mg/kg
LC50 Rat
Inhalation
8000 ppm, 4 hours
LD50 Rat
Oral
1540 mg/kg
* Estimates for product may be based on additional component data not shown.
Causes skin irritation.Skin corrosion/irritation
Causes serious eye irritation.Serious eye damage/eye
irritation
Respiratory or skin sensitization
Respiratory sensitization Not available.
This product is not expected to cause skin sensitization.Skin sensitization
No data available to indicate product or any components present at greater than 0.1% are
mutagenic or genotoxic.Germ cell mutagenicity
SDS USPVC Regular Clear Cement
927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 6 / 10
Carcinogenicity In 2012 USEPA Integrated Risk Information System (IRIS) reviewed a two species inhalation
lifetime study on THF conducted by NTP (1998). Male rats developed renal tumors and female
mice developed liver tumors while neither the female rats nor the male mice showed similar
results. Because the carcinogenic mechanisms could not be identified clearly in either species for
either tumor, the EPA determined that the male rat and female mouse findings are relevant to the
assessment of carcinogenic potential in humans. Therefore, the IRIS review concludes that these
data in aggregate indicate that there is "suggestive evidence of carcinogenic potential" following
exposure to THF by all routes of exposure.
IARC Monographs. Overall Evaluation of Carcinogenicity
Cyclohexanone (CAS 108-94-1) 3 Not classifiable as to carcinogenicity to humans.
Polyvinyl chloride (CAS 9002-86-2) 3 Not classifiable as to carcinogenicity to humans.
OSHA Specifically Regulated Substances (29 CFR 1910.1001-1050)
Polyvinyl chloride (CAS 9002-86-2) Cancer
This product is not expected to cause reproductive or developmental effects.Reproductive toxicity
Specific target organ toxicity -
single exposure
Narcotic effects. May cause drowsiness and dizziness. Respiratory tract irritation.
Specific target organ toxicity -
repeated exposure
Not classified.
Aspiration hazard May be fatal if swallowed and enters airways.
Chronic effects Prolonged inhalation may be harmful.
12. Ecological information
The product is not classified as environmentally hazardous. However, this does not exclude the
possibility that large or frequent spills can have a harmful or damaging effect on the environment.
Ecotoxicity
Components Test ResultsSpecies
Acetone (CAS 67-64-1)
Aquatic
LC50Fish > 100 mg/l, 96 hoursFathead minnow (Pimephales promelas)
* Estimates for product may be based on additional component data not shown.
Cyclohexanone (CAS 108-94-1)
Aquatic
LC50Fish 481 - 578 mg/l, 96 hoursFathead minnow (Pimephales promelas)
No data is available on the degradability of this product.Persistence and degradability
No data available.Bioaccumulative potential
Partition coefficient n-octanol / water (log Kow)
Acetone (CAS 67-64-1)-0.24
Cyclohexanone (CAS 108-94-1)0.81
Furan, Tetrahydro- (CAS 109-99-9)0.46
Methyl ethyl ketone (CAS 78-93-3)0.29
No data available.Mobility in soil
Other adverse effects No other adverse environmental effects (e.g. ozone depletion, photochemical ozone creation
potential, endocrine disruption, global warming potential) are expected from this component.
13. Disposal considerations
Collect and reclaim or dispose in sealed containers at licensed waste disposal site. This material
and its container must be disposed of as hazardous waste. Do not allow this material to drain into
sewers/water supplies. Do not contaminate ponds, waterways or ditches with chemical or used
container. Dispose of contents/container in accordance with local/regional/national/international
regulations.
Disposal instructions
Dispose in accordance with all applicable regulations.Local disposal regulations
The waste code should be assigned in discussion between the user, the producer and the waste
disposal company.
Hazardous waste code
Dispose of in accordance with local regulations. Empty containers or liners may retain some
product residues. This material and its container must be disposed of in a safe manner (see:
Disposal instructions).
Waste from residues / unused
products
Empty containers should be taken to an approved waste handling site for recycling or disposal.
Since emptied containers may retain product residue, follow label warnings even after container is
emptied.
Contaminated packaging
SDS USPVC Regular Clear Cement
927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 7 / 10
14. Transport information
DOT
UN1133UN number
AdhesivesUN proper shipping name
3Class
Transport hazard class(es)
-Subsidiary risk
3Label(s)
IIPacking group
Read safety instructions, SDS and emergency procedures before handling.Special precautions for user
T11, TP1, TP8, TP27Special provisions
Packaging exceptions
Packaging non bulk
150
201
243Packaging bulk
IATA
UN1133UN number
AdhesivesUN proper shipping name
3Class
Transport hazard class(es)
-Subsidiary risk
IIPacking group
No.Environmental hazards
3LERG Code
Read safety instructions, SDS and emergency procedures before handling.Special precautions for user
IMDG
UN number UN1133
ADHESIVESUN proper shipping name
3Class
Transport hazard class(es)
-Subsidiary risk
IIPacking group
Environmental hazards
Marine pollutant No.
EmS F-E, S-D
Special precautions for user Read safety instructions, SDS and emergency procedures before handling.
Not available.Transport in bulk according to
Annex II of MARPOL 73/78 and
the IBC Code
15. Regulatory information
This product is a "Hazardous Chemical" as defined by the OSHA Hazard Communication
Standard, 29 CFR 1910.1200.
All components are on the U.S. EPA TSCA Inventory List.
US federal regulations
TSCA Section 12(b) Export Notification (40 CFR 707, Subpt. D)
Not regulated.
OSHA Specifically Regulated Substances (29 CFR 1910.1001-1050)
Polyvinyl chloride (CAS 9002-86-2)Cancer
Central nervous system
Liver
Blood
Flammability
CERCLA Hazardous Substance List (40 CFR 302.4)
Acetone (CAS 67-64-1)LISTED
Cyclohexanone (CAS 108-94-1)LISTED
Furan, Tetrahydro- (CAS 109-99-9)LISTED
Methyl ethyl ketone (CAS 78-93-3)LISTED
SDS USPVC Regular Clear Cement
927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 8 / 10
Superfund Amendments and Reauthorization Act of 1986 (SARA)
Immediate Hazard - Yes
Delayed Hazard - No
Fire Hazard - Yes
Pressure Hazard - No
Reactivity Hazard - No
Hazard categories
SARA 302 Extremely hazardous substance
Not listed.
NoSARA 311/312 Hazardous
chemical
SARA 313 (TRI reporting)
Not regulated.
Other federal regulations
Clean Air Act (CAA) Section 112 Hazardous Air Pollutants (HAPs) List
Not regulated.
Clean Air Act (CAA) Section 112(r) Accidental Release Prevention (40 CFR 68.130)
Not regulated.
Not regulated.Safe Drinking Water Act
(SDWA)
Drug Enforcement Administration (DEA). List 2, Essential Chemicals (21 CFR 1310.02(b) and 1310.04(f)(2) and
Chemical Code Number
Acetone (CAS 67-64-1)6532
Methyl ethyl ketone (CAS 78-93-3)6714
Drug Enforcement Administration (DEA). List 1 & 2 Exempt Chemical Mixtures (21 CFR 1310.12(c))
Acetone (CAS 67-64-1)35 %WV
Methyl ethyl ketone (CAS 78-93-3)35 %WV
DEA Exempt Chemical Mixtures Code Number
Acetone (CAS 67-64-1)6532
Methyl ethyl ketone (CAS 78-93-3)6714
US state regulations
US. Massachusetts RTK - Substance List
Acetone (CAS 67-64-1)
Cyclohexanone (CAS 108-94-1)
Furan, Tetrahydro- (CAS 109-99-9)
Methyl ethyl ketone (CAS 78-93-3)
US. New Jersey Worker and Community Right-to-Know Act
Acetone (CAS 67-64-1)
Cyclohexanone (CAS 108-94-1)
Furan, Tetrahydro- (CAS 109-99-9)
Methyl ethyl ketone (CAS 78-93-3)
Polyvinyl chloride (CAS 9002-86-2)
US. Pennsylvania Worker and Community Right-to-Know Law
Acetone (CAS 67-64-1)
Cyclohexanone (CAS 108-94-1)
Furan, Tetrahydro- (CAS 109-99-9)
Methyl ethyl ketone (CAS 78-93-3)
US. Rhode Island RTK
Acetone (CAS 67-64-1)
Cyclohexanone (CAS 108-94-1)
Furan, Tetrahydro- (CAS 109-99-9)
Methyl ethyl ketone (CAS 78-93-3)
US. California Proposition 65
California Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65): This material is not known to contain
any chemicals currently listed as carcinogens or reproductive toxins.
International Inventories
Country(s) or region Inventory name On inventory (yes/no)*
Domestic Substances List (DSL)YesCanada
SDS USPVC Regular Clear Cement
927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 9 / 10
Country(s) or region Inventory name On inventory (yes/no)*
*A "Yes" indicates this product complies with the inventory requirements administered by the governing country(s).
A "No" indicates that one or more components of the product are not listed or exempt from listing on the inventory administered by the governing
country(s).
Toxic Substances Control Act (TSCA) Inventory NoUnited States & Puerto Rico
16. Other information, including date of preparation or last revision
05-27-2015Issue date
-Revision date
Version #01
Health: 2
Flammability: 3
Physical hazard: 0
HMIS® ratings
NFPA ratings
02
3
The information in the sheet was written based on the best knowledge and experience currently
available. Oatey Co. cannot anticipate all conditions under which this information and its product,
or the products of other manufacturers in combination with its product, may be used. It is the
user’s responsibility to ensure safe conditions for handling, storage and disposal of the product,
and to assume liability for loss, injury, damage or expense due to improper use.
Disclaimer
SDS USPVC Regular Clear Cement
927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 10 / 10

Appendix H
DEQ Risk Calculator Summary Pages
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
Building 1007 Worst Case Residential Scenario
North Carolina Department of Environmental Quality
Risk Calculator
Townes at LoSo
4920 Old Pineville Road
DWM Brownfields
23067-19-060
July 2023
May 2023 EPA RSL Table
Prepared By:Hart & Hickman, PC
Hart & Hickman, PC
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: July 2023
Basis: May 2023 EPA RSL Table
Site ID: 23067-19-060
Exposure Unit ID: Building 1007 Worst Case Residential Scenario
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: July 2023
Basis: May 2023 EPA RSL Table
Site ID: 23067-19-060
Exposure Unit ID: Building 1007 Worst Case Residential Scenario
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point ConcentrationsVersion Date: July 2023
Basis: May 2023 EPA RSL Table
Site ID: 23067-19-060
Exposure Unit ID: Building 1007 Worst Case Residential Scenario
Description of Exposure Point Concentration Selection:
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening Toxicity Value
(Screening Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
407 SS-1007-33 67-64-1 Acetone ug/m3
0.444 SS-1007-31 71-43-2 Benzene ug/m3
2.08 SS-1007-31 75-15-0 Carbon Disulfide ug/m3
0.61 SS-1007-DUP 56-23-5 Carbon Tetrachloride ug/m3
31.3 SS-1007-33 / SS-1007-DUP 67-66-3 Chloroform ug/m3
3.9 SS-1007-31 110-82-7 Cyclohexane ug/m3
3.13 SS-1007-33 75-71-8 Dichlorodifluoromethane ug/m3
1.05 SS-1007-DUP 100-41-4 Ethylbenzene ug/m3
8.46 SS-1007-DUP 109-99-9 ~Tetrahydrofuran ug/m3
0.344 SS-1007-31 142-82-5 Heptane, N-ug/m3
1.5 SS-1007-31 110-54-3 Hexane, N-ug/m3
2.25 SS-1007-31 67-63-0 Isopropanol ug/m3
1360 SS-1007-33 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
2.24 SS-1007-33 75-09-2 Methylene Chloride ug/m3
0.387 SS-1007-31 100-42-5 Styrene ug/m3
1.89 SS-1007-31 108-88-3 Toluene ug/m3
0.636 SS-1007-DUP 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-ug/m3
1.94 SS-1007-31 75-69-4 Trichlorofluoromethane ug/m3
0.427 SS-1007-31 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
3.78 SS-1007-DUP 108-38-3 Xylene, m-ug/m3
1.12 SS-1007-DUP 95-47-6 Xylene, o-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculations
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: July 2023
Basis: May 2023 EPA RSL Table
Site ID: 23067-19-060
Exposure Unit ID: Building 1007 Worst Case Residential Scenario
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated Indoor Air
Concentration
(ug/m3)
Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06
Target Indoor Air Conc. for Non-Carcinogens @ THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 407 12.21 --
71-43-2 Benzene 0.444 0.01332 3.6E-01 6.3E+00 3.7E-08 4.3E-04
75-15-0 Carbon Disulfide 2.08 0.0624 -1.5E+02 8.5E-0556-23-5 Carbon Tetrachloride 0.61 0.0183 4.7E-01 2.1E+01 3.9E-08 1.8E-0467-66-3 Chloroform 31.3 0.939 1.2E-01 2.0E+01 7.7E-06 9.2E-03110-82-7 Cyclohexane 3.9 0.117 -1.3E+03 1.9E-05
75-71-8 Dichlorodifluoromethane 3.13 0.0939 -2.1E+01 9.0E-04
100-41-4 Ethylbenzene 1.05 0.0315 1.1E+00 2.1E+02 2.8E-08 3.0E-05
109-99-9 ~Tetrahydrofuran 8.46 0.2538 -4.2E+02 1.2E-04
142-82-5 Heptane, N-0.344 0.01032 -8.3E+01 2.5E-05
110-54-3 Hexane, N-1.5 0.045 -1.5E+02 6.2E-0567-63-0 Isopropanol 2.25 0.0675 -4.2E+01 3.2E-0478-93-3 Methyl Ethyl Ketone (2-Butanone)1360 40.8 -1.0E+03 7.8E-0375-09-2 Methylene Chloride 2.24 0.0672 1.0E+02 1.3E+02 6.6E-10 1.1E-04
100-42-5 Styrene 0.387 0.01161 -2.1E+02 1.1E-05
108-88-3 Toluene 1.89 0.0567 -1.0E+03 1.1E-05
76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-0.636 0.01908 -1.0E+03 3.7E-06
75-69-4 Trichlorofluoromethane 1.94 0.0582 --
95-63-6 Trimethylbenzene, 1,2,4-0.427 0.01281 -1.3E+01 2.0E-04
108-38-3 Xylene, m-3.78 0.1134 -2.1E+01 1.1E-0395-47-6 Xylene, o-1.12 0.0336 -2.1E+01 3.2E-04
Cumulative:7.8E-06 2.1E-02
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2023
Basis: May 2023 EPA RSL Table
Site ID: 23067-19-060
Exposure Unit ID: Building 1007 Worst Case Residential Scenario
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 7.8E-06 2.1E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
3. NM = Not modeled, user did not check this pathway as complete.
4. NC = Pathway not calculated, required contaminant migration parameters were not entered.
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
North Carolina DEQ Risk Calculator