10061_OPR_VIMS Install_Building 1004_1008

Via Email November 12, 2021
NCDEQ – Division of Waste Management Brownfields Program 1646 Mail Service Center Raleigh, NC 27699-1646
Attn: Ms. Carolyn Minnich Re: Vapor Intrusion Mitigation System Installation Completion Report Old Pineville Road – Buildings 1004 and 1008
Charlotte, North Carolina Brownfields Project No. 10061-06-060 H&H Project No. NVR-010
Dear Carolyn: Please find enclosed the Vapor Intrusion Mitigation System (VIMS) Installation Completion Report prepared for Buildings 1004 and 1008 at the Old Pineville Road Brownfields property (Brownfields Project No. 10061-06-060) located in Charlotte, Mecklenburg County.
Should you have any questions or need additional information, please do not hesitate to contact us at [phone].
Sincerely,
Hart & Hickman, PC

Alexis McKenzie, PE Ralph McGee, PG Project Engineer Project Manager
Enclosure
cc: Mr. Brodie Scanlin, NVR, Inc. (Via Email) Mr. Jared Kimak, NVR, Inc. (Via Email) Mr. Kevin Slaughter, NCDEQ (Via Email) Mr. Trinh DeSa, H&H (Via Email)

VIMS Installation Completion Report

Old Pineville Road
Brownfields Project No. 10061-06-060

Old Pineville Townhomes
Buildings 1004 & 1008
4928 Old Pineville Road & 649 Scholtz Road
Charlotte, North Carolina
H&H Job No. NVR-010
November 12, 2021

#C-1269 Engineering #C-245 Geology
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VIMS Installation Completion Report Old Pineville Road
Old Pineville Road Townhomes – Buildings 1004 & 1008 Charlotte, North Carolina Brownfields Project No. 10061-06-060 H&H Job No. NVR-010
Table of Contents 1.0 Introduction ..............................................................................................................................1
2.0 VIMS Installation and Influence Testing .............................................................................3
2.1 VIMS Installation ..................................................................................................................3
2.2 VIMS Influence Testing ........................................................................................................5
3.0 Sub-Slab Soil Gas Assessment Activities ..............................................................................7
3.1 Sub-Slab Soil Gas Sampling .................................................................................................7
3.2 Sub-Slab Soil Gas Sampling Results .....................................................................................8
4.0 Summary and Conclusions...................................................................................................10

List of Tables

Table 1 Summary of Sub-Slab Soil Gas Analytical Data

List of Figures

Figure 1 Site Location Map
Figure 2 Site Map

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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
Appendix F Laboratory Analytical Report
Appendix G DEQ Risk Calculator

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VIMS Installation Completion Report Old Pineville Road
Old Pineville Road Townhomes – Buildings 1004 & 1008 Charlotte, North Carolina Brownfields Project No. 10061-06-060 H&H Job No. NVR-010
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 assessment
activities completed at the Old Pineville Road Brownfields property (Brownfields Project No.
10061-06-060) located at 4928 Old Pineville Road and 649 Scholtz Road in Charlotte,
Mecklenburg County, North Carolina (Site or subject Site). The redevelopment is known as Old
Pineville Townhomes, and is being developed with for-sale residential townhomes by Ryan
Homes, an NVR, Inc. (NVR) company. The Site development plan includes construction of fifteen
(15) townhome complexes which includes one 3-unit townhome complex, one 4-unit townhome
complex, five 7-unit townhome complexes, and eight 8-unit townhome complexes for a total of
106 individual residential townhome units. This report has been prepared for Old Pineville Road
Townhomes Buildings 1004 and 1008, each with eight units (Units A through H). Building 1004
and 1008 are located along the northern Site boundary. A Site location map is provided as Figure
1, and a Site Map that identifies the Site buildings is provided as Figure 2.

Assessment activities were completed at the Site in January 2007 to evaluate subsurface conditions
for potential impacts associated with historical on-Site and nearby off-Site operations. Results of
groundwater assessment activities indicated that there are not compounds present at concentrations
that pose significant risks for structural vapor intrusion at the Site based on a residential use
scenario. For ease of reference, the January 2007 data summary tables and a sample location map
are included in Appendix A.

A Brownfields Agreement between the North Carolina Department of Environmental Quality
(DEQ) and John J. Huson was recorded for the Site on January 8, 2008. Land Use Restriction
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No. 4 in the recorded Brownfields Agreement generally states that no residential construction or
conversion of any structure to residential use may occur at the Brownfields property without
written notification to DEQ and a VIMS has been installed to the satisfaction of a professional
engineer licensed in North Carolina.

In accordance with the DEQ Brownfields Program Minimum Requirements for Townhome
Developments document, and to be in general compliance with the Brownfields Agreement, the
prospective developer (PD) elected to install a passive VIMS during construction of each proposed
townhome building. H&H prepared a Vapor Intrusion Mitigation Plan (VIMP) and revisions to
the VIMP based on DEQ comments. The final VIMP dated January 18, 2021, was approved by
DEQ in a letter dated February 15, 2021.

The DEQ-approved VIMP includes installation of a passive VIMS in each of the townhome
buildings and post-installation sub-slab soil gas sampling. This report documents installation of
the VIMS for Buildings 1004 and 1008. Following installation of the VIMS in other Site
townhome buildings and completion of post-construction sampling, additional installation
completion reports will be submitted under separate cover.

A discussion of VIMS installation activities is provided in Section 2.0, a summary of sub-slab soil
gas assessment activities is provided in Section 3.0, and summary and conclusions based on the
results of the VIMS installation and soil gas assessment activities are provided in Section 4.0.

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2.0 VIMS Installation and Influence Testing

Buildings 1004 and 1008 each consist of eight individually owned 3-story townhomes. The
buildings are built with thickened concrete footers and block walls with a concrete slab on-grade
foundation. The concrete footings and block walls were constructed prior to the slab-on-grade.
Each building unit includes a stairwell, garage, and living spaces located on the ground floor of
the structure and the ground floor footprint for each townhome unit totals approximately 640
square feet.

2.1 VIMS Installation

The DEQ-approved VIMP included installation of Vaporblock® Plus 20 (VBP20) vapor barrier
manufactured by Raven Industries (Raven) beneath the concrete slabs of the townhouse buildings.
VBP20 is an ASTM-certified 20-mil, multi-layer, chemically resistant vapor barrier, designed to
prevent the migration of volatile organic compounds. Technical specifications and installation
instructions obtained from Raven for the VBP20 vapor barrier are provided in Appendix B.

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 sealed to the
concrete foundations utilizing Butyl Seal double-sided tape. Seams within the building footprint
have a minimum 12-inch overlap and were sealed with VaporSeal™ tape. Small puncture holes
were sealed with VaporSeal™ tape, and larger holes around utility penetrations were repaired
using a patch that overlaps the penetration and then were taped along the seams.

The VIMP also included installation of a passive mitigation system beneath the ground-level slab
of each building to reduce the potential for vapor intrusion into the townhome units by vapor
extraction. Because these units contain ground floor garages adjacent to living spaces, the VIMS
and sub-slab vapor extraction treatment was extended below the ground-level garages of the
townhomes. Sub-slab vapor extraction in Building 1004 is accomplished using (PVC) vapor
collection/conveyance piping which collects vapor from beneath the ground floor slabs of each
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building and discharges the vapor through exhaust stacks above the building roof. In Building
1008, soil gas collector mat manufactured by Radon Professional Discount Supply (Radon PDS)
was used as an alternative sub-slab vapor collector pipe to the proposed sub-slab slotted PVC
piping below the townhome units.

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.
Please note that DEQ did not approve this VIMP modification, however the modification was
approved by the design engineer(a NC Professional Engineer) because the soil gas collector mat
and accessories are an equivalent sub-slab soil gas collector conduit to the PVC piping proposed
in the VIMP. In addition, the Radon PDS mat is an acceptable soil gas collector as indicated in
the ANSI/AARST 2020 Reducing Radon in New Construction of 1 & 2 Family Dwellings and
Townhouses document.

The passive VIMS is also enhanced with an Empire Eveco EV04SS (stainless steel) stationary
ventilator that is designed to promote air exhaust from the conveyance piping. The Empire Eveco
ventilator was approved by the design engineer and is a ventilator similar to the Empire Syphon
specified in the VIMP. Each townhome unit contains individual sub-slab collection systems, riser
conveyance piping, and a stationary ventilator. Product specification sheets for the ventilator,
slotted piping, 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. Sub-slab vapor collection piping (3-inch diameter) or
soil gas collector mat were installed within the high permeability stone layer. The thickness of
the high permeability stone around the piping extends a minimum of 1-inch above the piping and
a minimum of 1-inch below the sub-slab piping and a minimum of 2-inches above and below the
soil gas collector mat (approximately 5-inches of gravel around a 3-inch pipe or 1-inch thick
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collector mat). In areas without sub-slab piping, a minimum thickness of 4 inches of clean stone
was installed.

In the event the system needs to be activated with electric fans, one vacuum monitoring point was
installed in 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 Buildings 1004 and 1008, 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:
• after installation of sub-slab horizontal collection system 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 stationary ventilator installations.

Based upon inspections completed during the VIMS installation activities, the VIMS was installed
in general accordance with the DEQ-approved VIMP with the exception of the soil gas collector
mat modification discussed above. 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 VIMS installation activities is provided in Appendix D.
2.2 VIMS Influence Testing

In July and August 2021, H&H completed influence testing for Buildings 1004 and 1008,
respectively, 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.

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H&H connected RadonAway RP-265 fans, which are standard electric radon-style 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 monitoring point over varied time intervals. Results of the influence tests are
summarized in Table E-1 (Building 1004) and Table E-2 (Building 1008). In every unit, the
measured vacuum at the monitoring point was above the minimum 0.016-in-WC. The influence
tests demonstrate adequate sub-slab system communication and that sufficient vacuum can easily
be achieved below the slab of each unit. The locations of the permanent monitoring points
(denoted by MP nomenclature) are shown on Sheets VM-2 and VM-3 (Appendix C). The pilot
test field data forms are 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 sub-slab soil gas samples for
laboratory analysis from each building at the following locations:
• Building 1004 – Samples SS-1004-A (Unit A), SS-1004-D (Unit D), and SS-1004-H (Unit
H)
• Building 1008 – Samples SS-1008-A (Unit A), SS-1008-D (Unit D), and SS-1008-H (Unit
H).

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 October 18, 2021, H&H collected sub-slab soil gas samples from permanent monitoring points
in Buildings 1004 and 1008. The sampling was performed following VIMS installation activities
and a minimum of two weeks after installation of the stationary ventilators. The sub-slab soil gas
samples were collected from the permanent monitoring points corresponding to the units above
and as shown on Sheets VM-2 and VM-3 (Appendix C). One duplicate sub-slab soil gas sample
(SS-1004-DUP) was collected for quality assurance/quality control (QA/QC) purposes during the
event concurrent with the SS-1004-H parent sample. 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 secured 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 of approximately 100 milliliters per minute.

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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%. 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 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 which indicates 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 and pressure
measurements, and the requested analysis. The canisters were then placed in laboratory supplied
shipping containers and delivered to Contest Analytical under standard chain of custody protocols
for analysis of volatile organic compounds (VOCs) by 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 June 2021. The laboratory analytical report and chain of custody
record is provided as Appendix F.

The sub-slab soil gas sample analytical results indicate that several compounds were detected in
each sample above laboratory method detection limits. However, no compounds were detected at
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concentrations exceeding the DEQ DWM Residential Vapor Intrusion SGSLs in any of the sub-
slab soil gas samples from Buildings 1004 and 1008.

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 (June 2021) 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 each building under a residential use scenario to
conservatively evaluate potential vapor intrusion risks. The calculated LICR and HI for each
building are included below:

• Worst-case residential use calculations for Building 1004 indicate a calculated LICR of 4.4
x 10-7 and a calculated HI of 0.031; and,
• Worst-case residential use calculations for Building 1008 indicate a calculated LICR of 6.9
x 10-7 and a calculated HI of 0.035.

The results of the worst-case risk calculations confirm that compound concentrations detected
below the building slabs do not pose vapor intrusion risks at unacceptable levels within the
townhome units at Buildings 1004 and 1008. The calculated cumulative LICR and HI values are
provided in Table 1 and copies of the completed DEQ Risk Calculators are provided in
Appendix G.

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4.0 Summary and Conclusions

Construction of townhome Buildings 1004 and 1008 of the Old Pineville Townhomes
development has been completed at the Old Pineville Road Brownfields property (Brownfields
Project No. 10061-06-060) located at in Charlotte, North Carolina. The Old Pineville Townhomes
project includes construction of 15 total buildings at the Site, and separate reports will be submitted
to document installation of the VIMS in the other buildings.

During construction of the buildings, 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. The PD and/or HOA will be responsible for future maintenance of the VIMS to maintain
system effectiveness. A brief summary of the VIMS installation and post-installation soil gas
assessment activities is provided below.

VIMS Installation
VIMS installation has been completed for Buildings 1004 and 1008 and consists of a passive sub-
slab depressurization system with vertical extraction piping to the roof and enhanced with
stationary ventilators installed above the building roofline. A modification was made to the VIMP
and approved by the design engineer (a NC Professional Engineer) in Building 1008 in which soil
gas collector mat was substituted for the slotted sub-slab PVC. During installation of the VIMS,
H&H personnel, under direction of a NC Professional Engineer, conducted inspections during each
stage of installation. Results of the installation inspections indicate that the VIMS was successfully
installed in general accordance with the DEQ-approved VIMP, with the exception of the soil gas
collector mat modification. Influence testing for the buildings confirmed efficient sub-slab VIMS
communication and that adequate vacuum can be obtained should an active depressurization
system be warranted in the future.

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Sub-Slab Soil Gas Assessment
Following installation of the VIMS and completion of interior construction activities, H&H
collected sub-slab soil gas samples from Buildings 1004 and 1008 to evaluate potential vapor
intrusion risks. Laboratory analytical results of the sub-slab soil gas samples indicate that multiple
VOCS were detected in the sub-slab of each building, however no detected compounds exceed the
DEQ DWM Residential Vapor Intrusion SGSLs. H&H utilized the DEQ Risk Calculator (June
2021) to calculate the cumulative carcinogenic and non-carcinogenic risks under a hypothetical
worst-case residential use scenario by utilizing the highest concentration of each compound
detected in the sub-slab soil gas samples from each building. The hypothetical worst-case
residential use risk calculator results indicate the calculated LICR and HI values for each building
are well below DEQ and EPA acceptable risk levels.

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 at the Site.
The sub-slab soil gas to indoor air risk calculator results confirm that risks are below acceptable
levels. In accordance with the DEQ-approved VIMP, two post-construction sub-slab soil gas
sampling events will be completed on an annual basis.

Table 1Summary of Sub-Slab Soil Gas Analytical DataOld Pineville RoadOld Pineville Townhomes - Buildings 1004 & 1008Charlotte, North CarolinaBrownfields Project No. 10061-06-060H&H Job No. NVR-010Building NumberSample IDSS-1004-A SS-1004-D SS-1008-A SS-1008-D SS-1008-HDate10/18/2021 10/18/2021 10/18/2021 10/18/2021 10/18/2021UnitsVOCs (TO-15)Acetone 160 110 100 100 240 51 160 220,000Benzene 0.99 J<0.380.56 J 0.58 J<0.380.41 J<0.38122-Butanone (MEK) 1,200 710 500 510 1,300 190 920 35,000Carbon Tetrachloride<0.95 <0.950.43 J 0.43 J<0.950.43 J<0.9516Chloromethane 1.2 J 0.89 J 0.93 1.0 0.70 J 1.3 0.74 J 630Cyclohexane 8.3<1.14.7 4.9 6.7 12 3.6 42,000Dichlorodifluoromethane (Freon 12) 2.2 J 2.3 J 1.8 1.8 2.3 J 1.8 2.1 J 700Ethanol 49 L-05, V-35 27 J, L-05, V-35 52 L-05, V-35 49 L-05, V-35 37 J, L-05, V-35 36 L-05, V-35 23 J NEEthyl Acetate<11 <117.1 J 11<11 <4.3 <11 L-03490Ethylbenzene<0.56 <0.560.36 J 0.36 J<0.560.38 J<0.56374-Ethyltoluene<0.76 <0.760.69 J 0.96 J<0.760.35 J<0.76NEHeptane<0.84 <0.840.90 0.64 J<0.840.69 J<0.842,800Hexane<5.8 <5.83.4 J 3.1 J<5.83.6 J<5.84,900Isopropanol 25 J<114.7 J 7.3 J 17 J<4.5 <111,400Methylene chloride 7.1 J<4.07.4 7.9<4.0 <1.6 <4.03,400Naphthalene<1.7 <1.70.88 J, L-05 0.80 J, L-05 1.7 J, L-05 0.90 J, L-05<1.72.8Propene<2.94.3 J 3.3 J 3.1 J<2.91.8 J<2.921,000Styrene<0.67 <0.670.36 J 0.32 J<0.67 <0.27 <0.677,000Tetrahydrofuran 240 150 120 110 380 43 210 14,000Toluene 2.7 1.0 J 2.9 3.2 1.2 J 4.2<0.7935,000Trichlorofluoromethane (Freon 11) 1.3 J 1.3 J 1.4 J 1.5 J 2.3 J 1.3 J 1.3 J NE1,1,2-Trichlorotrifluoroethane<1.4 <1.40.55 J 0.58 J<1.40.55 J<1.435,0001,2,4-Trimethylbenzene<0.73 <0.73 <0.29 <0.29 <0.73 <0.291.3 J 4201,3,5-Trimethylbenzene<0.67 <0.670.81 J 0.96 J<0.670.41 J<0.67420m&p-Xylene 1.2 J<1.20.97 J 1.0 J<1.21.1 J<1.2700o-Xylene<0.58 <0.580.38 J 0.43 J<0.580.40 J<0.58700DEQ Cumulative Risk Calculator(2)Acceptable Risk LevelsLICR (residential use worst-case)<1 x 10-4Non-Carcinogenic HI (residential use worst-case)<1.0Notes:1) NC Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Residential Vapor Intrusion Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) dated June 2021 and based upon TCR = 1 x 10-6 and THQ = 0.2.2) NC DEQ DWM Cumulative Risk Calculator dated June 2021.Compound concentrations are reported in micrograms per cubic meter (μg/m3)Compound concentrations are reported to the laboratory method detection limits.Only those compounds detected in at least one sample are shown in the table above.Laboratory analytical method shown in parentheses.VOCs = Volatile Organic Compounds; NE = Not Established.TCR = Target Cancer Risk; THQ = Non-Carcinogenic Target Hazard Quotient; LICR = Lifetime Incremental Carcinogenic Risk; HI = Lifetime Non-Carcinogenic Hazard Index.Cumulative LICR and HI calculated using the residential worst-case scenario for each building and compared to DEQ and EPA acceptable carcinogenic and non carcinogenic risk levels.J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. L-05 = Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for thiscompound is likely to be biased on the high side.V-35 = Initial calibration verification did not meet method specifications and was biased on the high side resulting in a laboratory estimated concentration.6.9 x 10-70.0354.4 x 10-70.031ResidentialSGSLs (1)Building 1008Building 1004SS-1004-H / SS-1004-DUPµg/m310/18/2021S:\AAA-Master Projects\NVR, Inc\NVR-010 OPR\Bldg Completion Reports\Building 1004 and 1008\Tables\1004 and 1008 Data Tables11/13/2021Table 1 (Page 1 of 1)Hart & Hickman, PC
SITE LOCATION MAP
OLD PINEVILLE HOMES
4928 OLD PINEVILLE ROAD
CHARLOTTE, NORTH CAROLINA
DATE:
JOB NO:
REVISION NO:
FIGURE NO:
6-18-2021 0
1NVR-010
0 2000 4000
APPROXIMATE
SCALE IN FEET
N
U.S.G.S. QUADRANGLE MAP
7.5 MINUTE SERIES (TOPOGRAPHIC)
2923 S. Tryon Street, Suite 100
Charlotte, NC 28203
704.586.0007(p) 704.586.0373(f)
CHARLOTTE WEST, NORTH CAROLINA 1996
SITE
REVISION NO. 0
JOB NO. NVR-010
DATE: 6-21-21
FIGURE NO. 2
OLD PINEVILLE ROAD
4928 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
LEGEND
SITE PROPERTY BOUNDARY
PARCEL BOUNDARY
PROPOSED BUILDING FOOTPRINT
UNIT NUMBERF
F
F
F
F
F
F
F
F
F
F
F
F
F
H G
E D C B A
H G
E D C B A
H G
E D C B A
H G
E D C B A H G
E D C B A
H G
E D C B A
H G
E D C B A
H G
E D C B A
A
B
C
A
B
C
D
A
B
C
D
E
G
A B C D E
G
A B C D E
G
A B C D E
G
A B C D E
G
ANSTON DRI
V
E
TODDWICK P
L
A
C
EBIRCHAM DRIVETHORNDALE LANESCHLOTZ RO
A
D OLD PINEVILLE ROADNOTES:
1.AERIAL IMAGERY OBTAINED FROM MECKLENBURG
COUNTY GIS (2021).
2.DEVELOPMENT PLAN BASED ON SITE PLAN PROVIDED BY
BOHLER ENGINEERING (STAMPED 12/24/19).
BUILDING 1001
BUILDING 1002
BUILDING 1003
BUILDING 1007
BUILDING 1011
BUILDING 1006
BUILDING 1005
BUILDING 1004
BUILDING 1008
BUILDING 1009
BUILDING 1010
BUILDING 1015
BUILDING 1014
BUILDING 1013
BUILDING 1012
M:\AAA_DRAFTING\NVR\NVR-010-Old Pineville Road\Site Plan.dwg, FIG 2, 6/21/2021 11:19:59 AM, SVincent

Appendix A
Historical Data Summary Tables and Sample Location Maps

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REVISION NO. 0
JOB NO. NVR-010
DATE: 11-7-19
FIGURE NO. A-1
OLD PINEVILLE ROAD
4928 OLD PINEVILLE ROAD
CHARLOTTE, NORTH CAROLINA
SAMPLE LOCATION MAP
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
DRAINAGE DITCH
LYNX LIGHT RAIL
HISTORICAL SOIL BORING
HISTORICAL TEMPORARY
GROUNDWATER MONITORING WELL
HISTORICAL SURFACE WATER
SAMPLE LOCATION
HISTORICAL SEDIMENT SAMPLE
LOCATION
SB-1
SB-2
BG
SW-2
SW-1
TW-3
TW-4
TW-1
TW-2
SB-4
SB-3
SB-6
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 ROADSCHOLTZ RO
A
D
NOTES:
1. HISTORICAL SOIL, GROUNDWATER, SEDIMENT, AND
SURFACE WATER SAMPLES WERE COLLECTED BY
ECS DURING PHASE II ESA ACTIVITES ON JANUARY
29-31, 2007.
FORMER METAL WAREHOUSE
OUTFALL
S:\AAA-Master Projects\NVR, Inc\NVR-010 OPR\Figures\Site and Surround Map_R1.dwg, 9/2/2020 9:29:31 AM, amckenzie

Appendix B
Product Specifications

PRODUCT PART #
VaporBlock® Plus™ 20 ................................................................ VBP20
UNDER-SLAB VAPOR / GAS BARRIER
Under-Slab Vapor/Gas Retarder
© 2018 RAVEN INDUSTRIES INC. All rights reserved.
VAPORBLOCK® PLUS™VBP20
PRODUCT DESCRIPTION
VaporBlock® Plus™ is a seven-layer co-extruded barrier
made using high quality virgin-grade polyethylene and
EVOH resins to provide unmatched impact strength as well
as superior resistance to gas and moisture transmission.
VaporBlock® Plus™ 20 is more than 100 times less permeable
than typical high-performance polyethylene vapor retarders
against Methane, Radon, and other harmful VOCs. Tested and
verified for unsurpassed protection against BTEX, HS, TCE, PCE,
methane, radon, other toxic chemicals and odors.
VaporBlock® Plus™ 20 multi-layer gas barrier is manufactured
with the latest EVOH barrier technology to mitigate hazardous
vapor intrusion from damaging indoor air quality, and the safety
and health of building occupants. VBP20 is one of the most
effective underslab gas barriers in the building industry today
far exceeding ASTM E-1745 (Plastic Water Vapor Retarders
Used in Contact with Soil or Granular Fill Under Concrete Slabs)
Class A, B and C requirements. Available in a 20 (Class A) mil
thicknesses designed to meet the most stringent requirements.
VaporBlock® Plus™ 20 is produced within the strict guidelines
of our ISO 9001 Certified Management System.
PRODUCT USE
VaporBlock® Plus™ 20 resists gas and moisture migration
into the building envelop when properly installed to provide
protection from toxic/harmful chemicals. It can be installed as
part of a passive or active control system extending across the
entire building including floors, walls and crawl spaces. When
installed as a passive system it is recommended to also include
a ventilated system with sump(s) that could be converted to an
active control system with properly designed ventilation fans.
VaporBlock® Plus™ 20 works to protect your flooring and
other moisture-sensitive furnishings in the building’s interior
from moisture and water vapor migration, greatly reducing
condensation, mold and degradation.
SIZE & PACKAGING
VaporBlock® Plus™ 20 is available in 10’ x 150’ rolls to
maximize coverage. All rolls are folded on heavy-duty cores
for ease in handling and installation. Other custom sizes
with factory welded seams are available based on minimum
volume requirements. Installation instructions and ASTM E-1745
classifications accompany each roll.
APPLICATIONS
Radon Barrier
Methane Barrier
VOC Barrier
Brownfields Barrier
Vapor Intrusion Barrier
Under-Slab Vapor Retarder
Foundation Wall Vapor Retarder
VaporBlock® Plus™ is a seven-layer co-extruded barrier made using high quality virgin-grade polyethylene and EVOH resins to provide unmatched impact strength as well as superior resistance to gas and moisture transmission.
VaporBlock® Plus™ Placement
All instructions on architectural or structural drawings should be reviewed and followed.
Detailed installation instructions accompany each roll of VaporBlock® Plus™ and can also be located at www.ravenefd.com.
ASTM E-1643 also provides general installation information for vapor retarders.
VAPORBLOCK® PLUS™ 20
PROPERTIES TEST METHOD IMPERIAL METRIC
AppeArAnce White/Gold
Thickness, nominAl 20 mil 0.51 mm
WeighT 102 lbs/MSF 498 g/m²
clAssificATion ASTM E 1745 CLASS A, B & C
³ Tensile sTrengTh
ASTM E 154Section 9(D-882)58 lbf 102 N
impAcT resisTAnce ASTM D 1709 2600 g
permeAnce (neW mATeriAl)
ASTM E 154Section 7ASTM E 96Procedure B
0.0098 Perms
grains/(ft²·hr·in·Hg)
0.0064 Perms
g/(24hr·m²·mm Hg)
permeAnce (AfTer condiTioning)
(sAme meAsuremenT As Above permeAnce)
ASTM E 154Section 8, E96Section 11, E96Section 12, E96Section 13, E96
0.00790.00790.00970.0113
0.00520.00520.00640.0074
WvTr ASTM E 96Procedure B 0.0040 grains/hr-ft²0.0028 gm/hr-m²
benzene permeAnce See Note ⁶1.13 x 10-¹⁰ m²/sec or 3.62 x 10-¹³ m/s
Toluene permeAnce See Note ⁶1.57 x 10-¹⁰ m²/sec or 1.46 x 10-¹³ m/s
eThylbenzene permeAnce See Note ⁶1.23 x 10-¹⁰ m²/sec or 3.34 x 10-¹⁴ m/s
m & p-Xylenes permeAnce See Note ⁶1.17 x 10-¹⁰ m²/sec or 3.81 x 10-¹⁴ m/s
o-Xylene permeAnce See Note ⁶1.10 x 10-¹⁰ m²/sec or 3.43 x 10-¹⁴ m/s
hydrogen sulfide See Note 9 1.92E-⁰⁹ m/s
TrichloroeThylene (Tce) See Note ⁶7.66 x 10-¹¹ m²/sec or 1.05 x 10-¹⁴ m/s
perchloroeThylene (pce)See Note ⁶7.22 x 10-¹¹ m²/sec or 1.04 x 10-¹⁴ m/s
rAdon diffusion coeffiecienT K124/02/95 < 1.1 x 10-13 m2/s
meThAne permeAnce ASTM D 1434 3.68E-¹² m/sGas Transmission Rate (GTR):0.32 mL/m²•day•atm
mAXimum sTATic use TemperATure 180° F 82° C
minimum sTATic use TemperATure - 70° F - 57° C
UNDER-SLAB VAPOR / GAS BARRIER
VAPORBLOCK® PLUS™VBP20
© 2018 RAVEN INDUSTRIES INC. All rights reserved.
Scan QR Code to download
current technical data sheets
via the Raven website.
Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be performed for applicability in specific applications and/or conditions. RAVEN INDUSTRIES MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at www.RavenEFD.com
061318 EFD 1125
RAVEN ENGINEERED FILMSP.O. Box 5107 Sioux Falls, SD 57117-5107Ph: [phone] • TF: [phone] [e-mail]
³ Tests are an average of machine and transverse directions.5 Raven Industries performs seam testing at 20” per minute.6 Aqueous Phase Film Permeance. Permeation of Volatile Organic Compounds through EVOH Thin Film Membranes and Coextruded LLDPE/EVOH/
LLDPE Geomembranes, McWatters and Rowe, Journal of Geotechnical and Geoenvironmental Engineering© ASCE/
September 2015. (Permeation is the Permeation Coefficient adjusted to actual film thickness - calculated at 1 kg/m³.)
The study used to determine PCE and TCE is titled: Evaluation of diffusion of PCE & TCE through high performance geomembranes by Di
Battista and Rowe, Queens University 8 Feb 2018.9 The study used to determine diffusion coefficients is titled: Hydrogen Sulfide (H₂S) Transport through Simulated Interim Covers with Conventional and Co-Extruded Ethylene-Vinyl Alcohol (EVOH) Geomembranes.
INSTALLATION GUIDELINES - With VaporSeal™ Tape
VaporSeal™
4” Tape
VaporSeal™ 4” Tape Optional Butyl Seal
2-Sided Tape
Gas Barrier Applications
Elements of a moisture/gas-resistant floor system. General illustration only.(Note: This example shows multiple options for waterstop placement.
VaporSeal™
4” Tape
VaporSeal™ 4” Tape Optional Butyl Seal
2-Sided Tape
Gas Barrier Applications
Fig. 2: VaporBlock® Plus™ Overlap Joint Sealing Methods
Fig. 1: VaporBlock® Plus™ Overlapping Roll-out Method
Please Note: Read these instructions thoroughly before installation to ensure proper use of VaporBlock® Plus™. ASTM E 1465, ASTM E 2121 and, ASTM E 1643 also provide valuable information regarding the installation of vapor / gas barriers. When installing this product, contractors shall conform to all applicable local, state and federal regulations and laws pertaining to residential and commercial building construction.
• When VaporBlock® Plus™ gas barrier is used as part of an active control system for radon or other gas, a ventilation system will be required.
• If designed as a passive system, it is recommended to install a ventilation system that could be converted to an active system if needed.
Materials List:VaporBlock® Plus™ Vapor / Gas BarrierVaporSeal™* 4” Seaming TapeVaporSeal™* 12” Seaming/Repair TapeButyl Seal 2-Sided TapeVaporBoot Plus Pipe Boots 12/Box (recommended)VaporBoot Tape (optional)POUR-N-SEAL™ (optional)1” Foam Weather Stripping (optional)Mako® Screed Supports (optional)
VAPORBLOCK® PLUS™ PLACEMENT
1.1. Level and tamp or roll granular base as specified. A base for a gas-reduction system may require a 4” to 6” gas permeable layer of clean coarse aggregate as specified by your architectural or structural drawings after installation of the recommended gas collection system. In this situation, a cushion layer consisting of a non-woven geotextile fabric placed directly under VaporBlock® Plus™ will help protect the barrier from damage due to possible sharp coarse aggregate.
1.2. Unroll VaporBlock® Plus™ running the longest dimension parallel with the direction of the pour and pull open all folds to full width. (Fig. 1)
1.3. Lap VaporBlock® Plus™ over the footings and seal with Raven Butyl Seal tape at the footing-wall connection. Prime concrete surfaces, when necessary, and assure they are dry and clean prior to applying Raven Butyl Seal Tape. Apply even and firm pressure with a rubber roller. Overlap joints a minimum of 6” and seal overlap with 4” VaporSeal™ Tape. When used as a gas barrier, overlap joints a minimum of 12” and seal in-between overlap with an optional 2-sided Raven Butyl Seal Tape. Then seal with 4” VaporSeal™ Tape centered on the overlap seam. (Fig. 2)
Page 1 of 4 Top original diagram and figure #1 were reprinted with permission by the Portland Cement Association.Reference: Kanare, Howard M., Concrete Floors and Moisture, EB119, Portland Cement Association, Skokie, Illinois, and National Ready Mixed Concrete Association, Silver Spring, Maryland, USA, 2008, 176 pages.
1.4. Seal around all plumbing, conduit, support columns or other penetrations that come through the VaporBlock® Plus™ membrane.
1.4a. Method 1: Pipes four inches or smaller can be sealed with Raven VaporBoot Plus preformed pipe boots. VaporBoot Plus preformed pipe boots are formed in steps for 1”, 2”, 3” and 4” PVC pipe or IPS size and are sold in units of 12 per box (Fig. 3 & 5).
Pipe boots may also be fabricated from excess VaporBlock® Plus™ membrane (Fig. 4 & 6) and sealed with VaporBoot Tape or VaporSeal™ Tape (sold separately).
1.4b. Method 2: To fabricate pipe boots from VaporBlock® Plus™ excess material (see Fig. 4 & 6 for A-F):
A) Cut a square large enough to overlap 12” in all directions.
B) Mark where to cut opening on the center of the square and cut four to eight slices about 3/8” less than the diameter of the pipe.
C) Force the square over the pipe leaving the tightly stretched cut area around the bottom of the pipe with approximately a 1/2” of the boot material running vertically up the pipe. (no more than a 1/2” of stretched boot material is recommended)
D) Once boot is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in between the two layers. Secure boot down firmly over the membrane taking care not to have any large folds or creases.
E) Use VaporBoot Tape or VaporSeal™ Tape to secure the boot to the
pipe.
VaporBoot Tape (option) – fold tape in half lengthwise, remove half of the release liner and wrap around the pipe allowing 1” extra for overlap sealing. Peel off the second half of the release liner and work the tape outward gradually forming a complete seal.
VaporSeal™ Tape (option) - Tape completely around pipe overlapping the VaporBlock® Plus™ square to create a tight seal against the pipe.
F) Complete the process by taping over the boot perimeter edge with VaporSeal™ Tape to create a monolithic membrane between the surface of the slab and gas/moisture sources below and at the slab perimeter. (Fig. 4 & 6)
Preformed Pipe Boot Square Material Pipe Boot
Fig. 3
SINGLE PENETRATION PIPE BOOT INSTALLATION
Fig. 5 Fig. 6
1. Cut a square of VaporBlock® Plus™ barrier to extend at least 12” from the pipe in all directions.
2. Cut four to eight slices about 3/8” less than the diameter of the pipe.
5. Use Raven VaporBoot or VaporSeal™ Tape and overlap 1” at the seam.
4. Tape over the boot perimeter edge with VaporSeal™ Tape.
1. Cut out one of the preformed boot steps (1” to 4”).
2. Tape the underside boot perimeter with 2-sided Butyl Seal Tape.
3. Force the boot over pipe and press tape firmly in place.
4. Use VaporSeal™ Tape
to secure boot to the pipe.
5. Tape around entire boot edge with VaporSeal™ Tape.
VaporBoot Flexible Tapeor VaporSeal™ 4” TapeVaporSeal™ 4” Tape
VaporBlock® Plus™Material
VaporSeal™ 4” Tape
Raven Butyl Seal2-Sided Tape Raven Butyl Seal2-Sided Tape
VaporBoot PlusPreformed Boot 12”(minimum)
3. Force over pipe and tape the underside boot perimeter to existing barrier with 2-sided Butyl Seal Tape.
Fig. 4
Page 2 of 4 Original figure #4 diagram is reprinted with permission by the Portland Cement Association.Reference: Kanare, Howard M., Concrete Floors and Moisture, EB119, Portland Cement Association, Skokie, Illinois, and National Ready Mixed Concrete Association, Silver Spring, Maryland, USA, 2008, 176 pages.Method 1
Method 2
VaporSeal™4” Tape VaporBoot PlusPerformed Boot
Raven Butyl Seal 2-sided Tape Raven Butyl Seal 2-sided Tape
1.5. Sealing side-by-side multiple penetrations (option 1);
A) Cut a patch large enough to overlap 12” in all directions (Fig. 7)
of penetrations.
B) Mark where to cut openings and cut four to eight slices about
3/8” less than the diameter of the penetration for each.
C) Force patch material over penetration to achieve a tight fit and
form a lip.
D) Once patch is positioned, seal the perimeter to the membrane
by applying 2-sided Raven Butyl Seal Tape in-between the two
layers. (Fig. 8)
E) After applying Raven Butyl Seal Tape between the patch and
membrane, tape around each of the penetrations and the patch
with VaporSeal™ 4” tape. (Fig. 9) For additional protection apply
POUR-N-SEAL™ or an acceptable polyurethane elastomeric
sealant around the penetrations. (Fig. 10)
Fig. 7 Fig. 8
Fig. 9 Fig. 10
MULTIPLE PENETRATION PIPE BOOT INSTALLATION
Fig. 6
Cut a patch large enough to overlap 12” in all directions and slide over penetrations (Make openings as tight as possible.)
Once the overlay patch is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in-between the two layers.
After applying Raven Butyl Seal Tapebetween the patch and membrane, tape around the perimeter of the penetration and the patch with VaporSeal™ 4” Tape.
For additional protection apply POUR-N-SEAL™ or an acceptable polyurethane elastomeric sealant around the penetrations.
VaporSeal™ 4” Tape VaporSeal™ 4” Tape
Page 3 of 4
Option 1
Raven Butyl Seal 2-sided Tape
1.6. POUR-N-SEAL™ method of sealing side-by-side multiple penetrations (option 2);
A) Install the vapor barrier as closely as possible to pipe penetrations to minimize the amount of POUR-N-SEAL™ necessary to seal around all penetrations.
B) Once barrier is in place, remove soil or other particles with a dry cloth or a fine broom to allow for improved adhesion to the POUR-N-SEAL™ liquid.
C) Create a dam around the penetration area approximately 2” away from the pipe or other vertical penetrations by removing the release liner from the back of a 1” weather stripping foam and adhere to the vapor barrier. Form a complete circle to contain the POUR-N-SEAL™ materials (Fig. 11).
D) Once mixed, pour contents around the pipe penetrations. If needed, a brush or a flat wooden stick can be used to direct the sealant completely around penetrations creating a complete seal (Fig. 12-13).
E) DO NOT leave excess POUR-N-SEAL™ in plastic container for longer than the time it takes to pour sealant.
Fig. 12 Fig. 13
Fig. 11
Option 2
VAPORBLOCK® PLUS™ REPAIR INSTRUCTIONS
1.7. Proper installation requires all holes and openings are repaired prior
to placing concrete. When patching small holes, simply cut a 12” long
piece of 12” wide VaporSeal™ tape. Remove release liner and center
over the opening. Apply pressure to create a seal (Fig. 14-15).
1.8. When installing VaporBlock® Plus™ around pipe penetrations,
vertical columns, electrical ducts and other obstructions, you will
find it necessary to cut it to the nearest outside edge. This cut can
be easily sealed with 12” wide VaporSeal™ tape, by simply centering
it over the cut, 6” on either side. Once the tape is placed correctly,
apply pressure to assure a complete seal (Fig. 16).
Reminder Note: All holes or penetrations through the membrane will need
to be patched with 12” VaporSeal™ Tape.
Fig. 14
Page 4 of 5
Fig. 15
2.1. When installing reinforcing steel and utilities, in addition to the
placement of concrete, take precaution to protect VaporBlock®
Plus™. Carelessness during installation can damage the most
puncture–resistant membrane. Sheets of plywood cushioned with
geotextile fabric temporarily placed on VaporBlock® Plus™ provide
for additional protection in high traffic areas including concrete
buggies.
2.2. Use only brick-type or chair-type reinforcing bar supports to protect
VaporBlock® Plus™ from puncture.
2.3. Avoid driving stakes through VaporBlock® Plus™. If this cannot be
avoided, each individual hole must be repaired per section 1.7.
2.4. To avoid penetrating VaporBlock® Plus™ when installing screed
supports, utilize non-penetrating support, such as the Mako®
Screed Support System (Fig. 17). Avoid driving stakes through
VaporBlock® Plus™. If this cannot be avoided, each individual hole
must be repaired per figures 14-15.
2.5. If a cushion or blotter layer is required in the design between
VaporBlock® Plus™ and the slab, additional care should be given if
sharp crushed rock is used. Washed rock will provide less chance of
damage during placement. Care must be taken to protect blotter layer
from precipitation before concrete is placed.
VaporBlock® Plus™ Gas & Moisture Barrier can be identified on site
as gold/white in color printed in black ink with following logo and
classification listing (Fig. 18)
Page 5 of 5
VaporBlock® Plus™
Gas & Moisture Barrier
Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be performed for applicability in specific applications and/or conditions. RAVEN INDUSTRIES MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at wwww.RavenEFD.com
ENGINEERED FILMSP.O. Box 5107 Sioux Falls, SD 57117-5107Ph: [phone] • TF: [phone]
[e-mail]
020316 EFD 1127
VAPORBLOCK® PLUS™ PROTECTION
Fig. 16
Fig. 18
Fig. 17
* Patent Pending
© Raven 2016. All Rights Reserved.
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
ADVANTAGES
NO TRENCHINGNO BACKFILLNO VAPOR BARRIER*

It’s called SOIL gas mat for a reason, Place directly on soil or substrate.
Low-profile (1” thick) gas mat does not require trenching.
SAFETY DATA & PRODUCT DATA SHEETS AVAILABLE @ www.RADONMAT.com 3
INSTALLATION INSTRUCTIONS
1. Begin work on the sub grade (soil or gravel) after the final preparation and
before the concrete is poured. Start with T-Riser(s) and work out to ensure
smooth mat placement. Position the T-Riser(s) in appropriate location(s) and
nail down with a 12” steel nail (T Nail) through precut center hole.
2. Slide mat into flat openings on either end of T-riser with a portion of the fab-
ric around the outside. Tape the fabric to the outside of the T-Riser with duct
tape and staple mat to the ground with landscape staples to ensure soil contact
remains during pour stage.
3. Mat is typically laid out in a rectangular loop in the largest area with branch-
es or legs into smaller areas (FREE plan design at www.radonmat.com). There
is no need to trench the mat. Roll out the SGC mat, smooth it onto the ground.
To avoid wrinkles and buckling, work away from the risers, stapling to the
ground as you go. The mat should be stapled every three to four feet, in addi-
ton to corners, tee junctions & ends.
5. Corners are constructed by peeling back the filter fabric, cutting two ends
of the matrix at 45 degree angles and butting (or overlapping: no more than
1/2”) the matrix together. Pull the filter fabric back and tape into place. Staple
across the joint of the matrix and each leg of the corner. Use a minimum of
four staples at each corner-- two across the joint and one on each leg.
6. The tees for branches and legs are constructed by slitting the fabric of the
main loop at the location desired. Cut the fabric of the branch at the edges and
expose two inces of the matrix. Cut off the exposed matrix and but the ma-
trix of the branch (or overlap 1/2”)to the matrix of hte main loop. Pull the flter
fabric of the branch back over the main loop and tape into place. Staple across
joint of the matrix with two staples and one each on the branch and main loop.
Use a minimum of four staples at each tee, two across the joint and one on
each loop and branch.
4
7. All openings in the fabric at joints, tee’s, and ends of branches should be
taped to keep out concrete.
8. Stub up a few feet of 4” schedule 40 PVC* from all T risers before pour (or
cover T riser with duct tape). Seal with polyurethene caulk and screws. This
ensures no concrete aggregate enters the riser during slab pour. Be sure to
label “CAUTION RADON REDUCTION SYSTEM” on all pipe. *(6” PVC may be
substituted--for large multifamily projects. Simply cut T riser 4” insert away to
reveal 6” insert).
9. When the building is ready for the vent pipe to be installed above the slab,
fit to pre-stubbed PVC with PVC straight connect. If PVC was not preset, cut
duct tape from riser and insert 4” PVC pipe now. Seal with polyurethene caulk
and secure with screws. Always label “CAUTION RADON REDUCTION SYSTEM”
to avoid confusion on site and for the building occupants.
note: The openings in the riser are laid out at 180 degrees to accomodate
straight runs of mat. However, if the riser is to be placed in a corner, which is
not uncommon, the front of the T can be cut and the SGC mat inserted into
the new opening. The side of the T that is unused should be sealed with tape.
This creates a 90 degree T which will allow corner placement for the riser. Mat
should always enter the T riser from at least two directions and exhaust to pipe
vertically.
SAFETY DATA & PRODUCT DATA SHEETS AVAILABLE @ www.RADONMAT.com 5
MAKING CORNERS AND SPLICES
The mat should be routed around the inside perimeter of the foundation. This
will require occasional corner junctions. Furthermore, splices will have to be
made to join two lengths of mat together. Corners and splices are very easy to
make, and do not require any special fittings. Cut back the filter fabric to reveal
the core material. In the case of a splice, merely overlap the core by at least
one corrugation, replace the cloth, and tape it. Use two landscape staples to
hold the splice in place. In the case of a corner, peel back geotextile fabric and
slice the core of the two adjoining legs at 45 degree angles which mirror each
other; overlap the edges by one corrugation; return grey geotextile fabric, tape
and staple the corner together.
6
CONNECTING THE MAT TO THE
T RISER
A convenient T-riser with dual entry al-
lows for either end of the loop of mat
to be secured to the riser. Slide the
mat into each end of the riser and tape
the edge to prevent wet concrete from
entering. Cap the riser to ensure no
concrete enters. T Riser caps can be
purchased in leui of duct tape. A pres-
tub of PVC pipe can also serve the same
purpose. See steps 8-9 of the previous
7
FLAT OUTLET
SGC to PVC transition
SIDE VIEW GOING THRU FOOTER/ INTERMEDIATE WALL
SOIL GAS MAT SOIL GAS MAT
PVC PIPE
FOOTER/INTERMEDIATE WALL/ TRENCH
Soil Gas Mat
TOP VIEW GOING OVER FOOTER/WALL/TRENCH
GRAVEL OR SOIL UNDER MAT
Soil Gas MatSoil Gas Mat 4” sch. 40 PVC PIPE
GRAVEL OR SOIL UNDER MAT
TRENCHTRENCHTRENCH & FOOTER CROSSINGS
IDEAL FOR LONG SPANS8
STEEL SLEEVE
24” (36”) x 1” x 12”
SIDE VIEW GOING THRU FOOTER/ INTERMEDIATE WALL
SOIL GAS MAT SOIL GAS MAT
PVC PIPE
FOOTER/INTERMEDIATE WALL/ TRENCH
Soil Gas Mat
TOP VIEW GOING OVER FOOTER/WALL/TRENCH
GRAVEL OR SOIL UNDER MAT
Soil Gas MatSoil Gas Mat
GRAVEL OR SOIL UNDER MAT
TRENCHTRENCHSTEEL SLEEVE
available in 24” or 36”
STEEL SLEEVE 1” thick
IDEAL SHORT TRENCHES 9
POURING CONCRETE
The filter fabric that comes sewn around the soil gas collector prevents the wet
concrete from entering the mat and reducing its air collection capacity. The
only precaution that needs to be taken is that the fabric is duct taped closed at
seams of splices and corner to sufficiently keep the uncured concrete from en-
tering.
The mat also needs to be secured to the soil with landscape staples to prevent
the concrete from lifting off the soil while it is being applied. Re-enforcing bars
and wire can be laid on top of the mat.
Note: the mat is strong enough (4,300 psf) to withstand concrete workers and
their wheel barrows.
10
radon risk
radon-induced lung cancer claims the lives of over 22,000 Americans each year
FACT: Radon is found in all 50 US states. The US EPA action level is 4.0 pci/L or higher
FACT: Homes without basements are still at risk
FACT: Radon is the leading cause of lung cancer among “never smokers”
FACT: Radon is a natural part of the Uranium 238 breakdown chain
FACT: Breathing 6.2 pci/L is the equivalent radiation dosage of a chest x-ray every other day for your lungs
FACT: Radon is colorless, odorless and invisible to the naked eye
FACT: Radon testing is cheap and you can do it yourself

get the facts @
www.RadonReality.com
Anything and everything radon, VISIT US @ www.radonPDS.com
about us
Professional Discount Supply | Radon
Family-owned and operated since 1996. Situated on Colorado’s front range, PDS focuses on generating radon awareness through one-on-one technical support and trouble-shooting.

We’re always just a phone call away.
719-444-0646
1902 Aerotech Drive, Ste 110
Colorado Springs, CO 80916
Distribution opportunities available,
Please call for availability in your market

Appendix C
VIMS As-Built Drawings

VIMS VAPOR LINER AND BASE COURSE (TYP)1
BASE COURSE - CLEAN #57 STONE
MIN 4" THICK BENEATH VIMS VAPOR LINER
VAPOR LINER (SEE SPECIFICATION #3)
CONCRETE FLOOR SLAB
SUBBASE
NTSVM1
SECTION THROUGH TURNED DOWN SLAB AT DRIVEWAY4
NTSVM1
VAPOR LINER SEALED TO CONCRETE PER
MANUFACTURER INSTRUCTIONS.
GARAGE
DRIVEWAY
STUD WALL OR EXTERNAL WALL
(NOT PRESENT IN ALL LOCATIONS)
BASE COURSE
(SEE SPECIFICATION #3)
VIMS SLOTTED COLLECTION PIPE (TYP)2
3" SCH 40 THREADED FLUSH JOINT
SLOTTED PVC PIPE (0.020" SLOT WIDTH,
1/8" SLOT SPACING) SET WITHIN MIN 5" BASE COURSE
WITH MIN 1" BASE COURSE BENEATH AND ABOVE
SLOTTED PVC PIPE (SEE SPECIFICATION #5)
VAPOR LINER (SEE SPECIFICATION #3)
SUBBASE
NTSVM1
CONCRETE FLOOR SLAB
SUBBASE OLD PINEVILLE ROAD AND SHOLTZ ROADCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 10061-06-060OLD PINEVILLE TOWNHOMESRYAN 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 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
H&H NO. NVR-010
VAPOR
INTRUSION
MITIGATION
SYSTEM PLAN
SECTION
DETAILS
NOVEMBER 12, 2021
VM-1
3" SCH 40 PVC RISER
ELECTRICAL JUNCTION BOX FOR FUTURE VACUUM
FAN IN ENCLOSED ATTIC (SEE SPECIFICATION #7)
SECTION THROUGH TENANT SEPARATION BLOCK WALL WITH PIPE
NTSVM1
BASE COURSE
(SEE SPECIFICATION #3)
VAPOR LINER SEALED TO CONCRETE PER
MANUFACTURER INSTRUCTIONS
SUBBASE
5
SINGLE OR DOUBLE STUD
SEPARATION WALL
OPEN ENDED SCH 40 SLOTTED PVC
OR SOIL GAS COLLECTOR MAT
VIMS EVECO VENTILATOR EXHAUST (TYPICAL)9
NTSVM1
3" TO 4" HEAVY DUTY NO HUB
COUPLING
4" EMPIRE EV04SS EVECO VENTILATOR
RISER DUCT PIPE
THROUGH ROOF
FLASHING
ROOFTOP
COMPACTED FILL
BELOW DRIVEWAY
VAPOR LINER EXTENDS
TO OUTSIDE OF FOOTER,
WHERE POSSIBLE
CONCRETE FOOTER
FULLY GROUTED
CMU BLOCK WALL
VIMS RISER AT VERTICAL SLAB PENETRATION7
VM1 NTS
BRICK OR HOUSE SIDING
EXTERNAL WALL (NOT
PRESENT AT ALL LOCATIONS)
STUD WALL
BASE COARSE
(SEE SPECIFICATION #1)
VAPOR LINER SEALED TO PIPE AND
CONCRETE PER MANUFACTURER
INSTRUCTIONS.
SUBBASE
FLOOR SYSTEM SEE FRAMING PLANS
RUN RISER PIPE TO
ROOF (SEE DETAIL #9)
INSIDE (OCCUPIED SPACE)
OUTSIDE/
ADJACENT UNIT
3" SLOTTED SCH 40 PVC
3" SCH 40 PVC RISER DUCT PIPE
(SEE SPECIFICATION #6)
SECTION THROUGH SHALLOW THICKENED SLAB WITHIN GRAVEL
NTSVM1
STUD WALL
BASE COURSE
(SEE SPECIFICATION #3)
VAPOR LINER SEALED TO CONCRETE PER
MANUFACTURER INSTRUCTIONS.
SUBBASE
10
CONCRETE SLAB
PIPE MAY BE PRESENT WITHIN GRAVEL
BELOW CONCRETE
AS-BUILT
DRAWING
SECTION THROUGH TENANT SEPARATION FOOTER WITH PIPE
NTSVM1
6
SECTION THROUGH EXTERIOR WALL
NTSVM1
BRICK OR HOUSE SIDING
EXTERNAL WALL (NOT
PRESENT AT ALL LOCATIONS)
STUD WALL
BASE COURSE
(SEE SPECIFICATION #1)
VAPOR LINER SEALED TO CONCRETE PER
MANUFACTURER INSTRUCTIONS.
SUBBASE
3
BRICK OR HOUSE SIDING
EXTERNAL WALL (NOT
PRESENT AT ALL LOCATIONS)
STUD WALL
BASE COURSE
(SEE SPECIFICATION #3)
VAPOR LINER SEALED TO CONCRETE PER
MANUFACTURER INSTRUCTIONS.
SUBBASEVAPOR LINER BENEATH
CONCRETE FOOTER
3" SLOTTED SCH 40 PVC PIPE
OR SOIL GAS COLLECTOR
MAP (IF PRESENT)
3" SLOTTED SCH 40 PVC PIPE
OR SOIL GAS COLLECTOR
MAT (IF PRESENT)
GROUT LAYER
VIMS SUB-SLAB VENT (TYP)2A
SOIL GAS COLLECTOR MAT WITHIN BASE
COURSE - MIN 5" THICKNESS TO COVER
VENT WITH MIN 2-INCH ABOVE AND BELOW
(SEE SPECIFICATIONS #3 & #5)
VAPOR BARRIER (SEE SPECIFICATION #3)
SUBBASE
NTS
CONCRETE FLOOR SLAB
VM1
VIMS AT VERTICAL RISER (OPTIONAL SUB-SLAB COLLECTION PIPE)
NTS
7A
VM1
BRICK OR HOUSE SIDING
EXTERNAL WALL (NOT PRESENT
AT ALL LOCATIONS)
STUD WALL
VAPOR LINER SEALED TO PIPE
AND CONCRETE PER
MANUFACTURER INSTRUCTIONS.
3" SCH 40 RISER DUCT PIPE
(SEE SPECIFICATION #6)
BASE COURSE
SOIL GAS
COLLECTOR MAT
SUBBASE
SOIL GAS COLLECTOR MAT CONNECTION SEALED TO 3" SCH 40
PVC RISER WITH POLYURETHANE SEALANT
SOIL GAS COLLECTOR MAT CONNECTION BLOCK TO PVC (ONE 0.5"
DIAMETER HOLE DRILLED IN BOTTOM FOR MOISTURE DRAINAGE)
8
NTSVM1
BRICK OR SIDING EXTERNAL WALL
(NOT PRESENT AT ALL LOCATIONS)
STUD WALL
BASE COARSE
(SEE SPECIFICATION #1)
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 (OR SIMILAR). AFFIX LABEL AT
BOX WITH "VAPOR MITIGATION
SYSTEM". PLACE REMOVABLE PIPE
PLUG AT END OF 2" PIPE.
PERMANENT VACUUM MEASURING POINT
VAPOR LINER PLACED LONG
BOTTOM OF FOOTER; IN
SOME INSTANCES, VAPOR
LINER EXTENDS PARTIALLY
UP EXTERIOR OF FOOTING
PROFESSIONAL APPROVAL / SEAL
VAPOR INTRUSION MITIGATION SYSTEM (VIMS) SPECIFICATIONS
1.THIS VAPOR INTRUSION MITIGATION PLAN IS INTENDED TO BE USED FOR DIRECTION OF VIMS COMPONENT INSTALLATION ONLY AND IS NOT INTENDED TO GUIDE CONSTRUCTION OF STRUCTURAL COMPONENTS NOT RELATED TO THE VIMS. CONSTRUCTION CONTRACTOR
SHALL VERIFY CONSISTENCY OF VIMS DETAILS WITH APPLICABLE STRUCTURAL, ARCHITECTURAL, MECHANICAL, AND PLUMBING PLANS AND RESOLVE INCONSISTENCIES WITH THE DESIGN ENGINEER PRIOR TO VIMS INSTALLATION.
2.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS USED "LOW OR NO VOC" (INCLUDING NO PCE OR TCE) PRODUCTS AND MATERIALS, WHEN POSSIBLE. THE CONSTRUCTION CONTRACTOR AND SUB-CONTRACTORS PROVIDED SAFETY DATA SHEETS (SDS) TO THE
ENGINEER FOR PRODUCTS AND MATERIALS USED DURING CONSTRUCTION.
3.VIMS VAPOR LINER IS VAPORBLOCK PLUS 20 VAPOR BARRIER MANUFACTURED BY RAVEN INDUSTRIES. THE VAPOR LINER WAS INSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER INSTALLATION INSTRUCTIONS TO CREATE A CONTINUOUS LINER BELOW GROUND FLOOR
SLABS. A BASE COURSE CONSISTING OF CLEAN #57 STONE (OR SIMILAR HIGH PERMEABILITY STONE APPROVED BY THE ENGINEER) WAS INSTALLED BENEATH THE VIMS VAPOR LINER. IN AREAS AROUND THE SUB-SLAB PIPING OR RADON COLLECTION MAT, THE BASE COURSE LAYER
IS THICK ENOUGH TO COVER THE SUB-SLAB PIPING WITH A MINIMUM 1-INCH LAYER ABOVE AND BELOW THE PIPING OR COVER THE SOIL GAS COLLECTOR MAT WITH A MINIMUM OF 2-INCHES ABOVE AND BELOW THE MAT. IN AREAS WITHOUT PIPING, THE BASE COURSE IS A
MINIMUM OF 4-INCHES THICK.
ALL PENETRATIONS WERE SEALED ACCORDING TO VAPOR LINER MANUFACTURER INSTALLATION INSTRUCTIONS AS FOUND IN THE MANUFACTURER INSTALLATION GUIDELINES. SINCE VAPORBLOCK PLUS 20 WAS USED, 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.
4.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS AVOIDED THE USE OF TEMPORARY FORM BOARDS THAT PENETRATE THE VAPOR LINER WHERE POSSIBLE. IF TEMPORARY FORM BOARDS WERE USED, THE SIZE AND NUMBER OF PENETRATIONS THROUGH THE VAPOR
LINER WERE LIMITED AND SMALL DIAMETER STAKES (I.E. SOLID METAL STAKES) WERE USED. AS FORM BOARDS WERE REMOVED, THE CONTRACTOR OR SUB-CONTRACTORS SEALED PENETRATIONS IN ACCORDANCE WITH VAPOR LINER MANUFACTURER INSTALLATION
INSTRUCTIONS.
5.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 PIPE SHALL CONSIST OF 3" SCH 40 PVC OR SOIL GAS COLLECTOR MAT (AS NOTED IN THE DRAWINGS). SUB-SLAB SLOTTED VAPOR COLLECTION PIPE IS THREADED FLUSH JOINT
OR GLUE JOINT 3" SCH 40 PVC PIPE WITH 0.020" SLOT WIDTH AND 18" SLOT SPACING AND SOIL GAS COLLECTOR MAT IS APPROXIMATELY 1-INCH THICK BY 12-INCHES WIDE RECTANGULAR CONDUIT.
6.3” 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. EMPIRE EVECO VENTILATORS ARE INSTALLED ON THE EXHAUST DISCHARGE END OF EACH RISER
DUCT PIPE. A 4" X 3" PVC ADAPTOR COUPLING WAS INSTALLED AT THE DISCHARGE END OF THE 3" RISER DUCT PIPE AND THE FAN 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 AND EXCLUDE ATTIC VENTILATION OPENINGS.
7.NOTE THAT DISCHARGE LOCATIONS ON THE ROOFTOP DEPICTED IN THE VAPOR MITIGATION PLAN MAY HAVE BEEN REPOSITIONED AS LONG AS THE NEW POSITION MEETS THE REQUIREMENTS PRESENTED ABOVE. AN ELECTRICAL JUNCTION BOX (120V, 60HZ AC REQUIRED)
WAS INSTALLED NEAR THE FAN LOCATION FOR CONVERSION TO ELECTRIC FANS, IF REQUIRED. ALL WIRING AND ELECTRICAL WAS INSTALLED PER APPLICABLE BUILDING AND ELECTRICAL CODES.
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 AT THE EVECO VENTILATOR WAS LABELED WITH "VAPOR
MITIGATION SYSTEM - CONTACT HOA IF DAMAGED" IN AN ACCESSIBLE LOCATION IN THE ATTIC.
9.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 REQUIRED INSPECTIONS INCLUDED: (1) INSPECTION OF
SUB-SLAB PIPING LAYOUT AND GRAVEL PLACEMENT PRIOR TO INSTALLING VAPOR LINER; (2) INSPECTION OF VAPOR LINER PRIOR TO POURING CONCRETE; (3) INSPECTION OF ABOVE-GRADE PIPING LAYOUT; AND (4) INSPECTION OF FAN AND VENT PIPE CONNECTIONS. THE
CONSTRUCTION CONTRACTOR(S) COORDINATED WITH THE ENGINEER TO PERFORM THE REQUIRED INSPECTIONS. WHEN POSSIBLE. DEQ WAS CONTACTED 48-HOURS PRIOR TO THE INSPECTION BEING CONDUCTED. FIELD NOTES, PHOTOGRAPHS, AND ANY ADDITIONAL INSPECTION
DOCUMENTATION WERE INCLUDED IN THE FINAL DELIVERABLE TO DEQ.
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-010
VAPOR
INTRUSION
MITIGATION
SYSTEM PLAN
SPECIFICATIONS
NOVEMBER 12, 2021
VM-1AOLD PINEVILLE ROAD AND SHOLTZ ROADCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 10061-06-060OLD PINEVILLE TOWNHOMESAS-BUILT
DRAWING
MP-1004-B
MP-1004-C
MP-1004-A MP-1004-H
MP-1004-D
MP-1004-E
MP-1004-F
MP-1004-G
LEGEND
EXTENT OF VAPOR BARRIER
3" SCH 40 PVC SLOTTED PIPE
3" SCH 40 PVC SOLID PIPE
VERTICAL RISER (3" SCH. 40 PVC) AND FAN (REFER TO DETAIL #9 FOR VENTILATOR FAN
SET-UP)
VACUUM MEASURING POINT
THICKENED SLAB AT LOAD BEARING WALL
SHALLOW THICKENED SLAB WITHIN GRAVEL LAYER
NOTES:
1.ONE VACUUM MEASURING POINT WAS INSTALLED PER
UNIT. IF THE UNIT IS AN END UNIT, THEN VACUUM
MEASURING POINT WAS INSTALLED ON THE BACKSIDE OF
THE UNIT. IF THE UNITS ARE INTERIOR UNITS, THEN THE
VACUUM MEASURING POINT WAS INSTALLED ON THE
FRONT SIDE OF THE UNIT.
2.GROUND FLOOR LEVEL OF EACH BUILDING SHOWN.
REFER TO STRUCTURAL AND ARCHITECTURAL DRAWINGS
FOR FINAL BUILDING LAYOUT.
3.REFER TO SPECIFICATIONS 1 THROUGH 9 AND SECTION
DETAILS ON SHEETS VM-1 AND VM-1A.
4.EACH UNIT IS APPROXIMATELY 640 SQ FT 14 FT X 40 FT).
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-010
VAPOR
INTRUSION
MITIGATION
SYSTEM PLAN
BUILDING 1004
NOVEMBER 12, 2021
VM-2OLD PINEVILLE ROAD AND SHOLTZ ROADCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 10061-06-060OLD PINEVILLE TOWNHOMESAS-BUILT
DRAWING
4
VM1
8
VM1
7/9
VM1 10
VM1
2
VM1
5
VM1
1
VM1 8
VM1
8
VM1
2
VM1
4
VM15
VM1
1
VM1
8
VM15
VM1
2
VM1
8
VM1
3
VM1
3
VM1
10
VM1
10
VM1
7/9
VM1
THORNDALE LANEANSTON DRIVE
UNIT A
7305 THORNDALE LANE
UNIT B
7307 THORNDALE LANE
UNIT C
7309 THORNDALE LANE
UNIT D
7311 THORNDALE LANE
UNIT E
7313 THORNDALE LANE
UNIT F
7315 THORNDALE LANE
UNIT G
7317 THORNDALE LANE
UNIT H
7319 THORNDALE LANE
MP-1008-B
MP-1008-C
MP-1008-A MP-1008-H
MP-1008-D
MP-1008-E
MP-1008-F
MP-1008-G
LEGEND
EXTENT OF VAPOR BARRIER
SOIL GAS COLLECTOR MAT
VERTICAL RISER (3" SCH. 40 PVC) AND FAN (REFER TO DETAIL #9 FOR VENTILATOR FAN
SET-UP)
VACUUM MEASURING POINT
THICKENED SLAB AT LOAD BEARING WALL
SHALLOW THICKENED SLAB WITHIN GRAVEL LAYER
NOTES:
1.ONE VACUUM MEASURING POINT WAS INSTALLED PER
UNIT. IF THE UNIT IS AN END UNIT, THEN VACUUM
MEASURING POINT WAS INSTALLED ON THE BACKSIDE OF
THE UNIT. IF THE UNITS ARE INTERIOR UNITS, THEN THE
VACUUM MEASURING POINT WAS INSTALLED ON THE
FRONT SIDE OF THE UNIT.
2.GROUND FLOOR LEVEL OF EACH BUILDING SHOWN.
REFER TO STRUCTURAL AND ARCHITECTURAL DRAWINGS
FOR FINAL BUILDING LAYOUT.
3.REFER TO SPECIFICATIONS 1 THROUGH 9 AND SECTION
DETAILS ON SHEETS VM-1 AND VM-1A.
4.EACH UNIT IS APPROXIMATELY 640 SQ FT 14 FT X 40 FT).
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-010
VAPOR
INTRUSION
MITIGATION
SYSTEM PLAN
BUILDING 1008
NOVEMBER 12, 2021
VM-3OLD PINEVILLE ROAD AND SHOLTZ ROADCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 10061-06-060OLD PINEVILLE TOWNHOMESAS-BUILT
DRAWING
4
VM1
8
VM1
7A/9
VM1
2
VM1
5
VM1
1
VM1 8
VM1
8
VM1
2A
VM1
4
VM15
VM1
1
VM1
8
VM15
VM1
2A
VM1
8
VM1
3
VM1
3
VM1
7A/9
VM1
THORNDALE LANEANSTON DRIVE
UNIT A
3320 BIRCHAM DRIVE
UNIT B
3318 BIRCHAM DRIVE
UNIT C
3316 BIRCHAM DRIVE
UNIT D
3314 BIRCHAM DRIVE
UNIT E
3312 BIRCHAM DRIVE
UNIT F
3310 BIRCHAM DRIVE
UNIT G
3308 BIRCHAM DRIVE
UNIT H
3306 BIRCHAM DRIVE

Appendix D
VIMS Installation Photographs

Photograph 2: General view of the gravel and gas mat at Building 1008. NVR-0102923 S. Tryon Street, Suite 100
Charlotte, NC 28203704.586.0007(p) 704.586.0373(f)
Photograph 1: General view of the gravel and sub-slab piping at Building 1004.
OLD PINEVILLE ROAD TOWNHOMESOLD PINEVILLE ROADCHARLOTTE, NORTH CAROLINA
Photograph 4: Vapor barrier installation at Building 1008.
2923 S. Tryon Street, Suite 100
Charlotte, NC 28203704.586.0007(p) 704.586.0373(f)
Photograph 3: Vapor barrier installation at Building 1004.
OLD PINEVILLE ROAD TOWNHOMESOLD PINEVILLE ROADCHARLOTTE, NORTH CAROLINANVR-010
Photograph 5: Representative view of riser piping in Building 1008.
2923 S. Tryon Street, Suite 100
Charlotte, NC 28203704.586.0007(p) 704.586.0373(f)
Photograph 6: Ventilators on the roof of Building 1004.
OLD PINEVILLE ROAD TOWNHOMESOLD PINEVILLE ROADCHARLOTTE, NORTH CAROLINANVR-010

Appendix E
Field Forms

Table E-1VIMS Pilot TestOld Pineville RoadOld Pineville Townhomes - Building 1004Charlotte, North CarolinaBrownfields Project No. 10061-06-060H&H Job No. NVR-010Unit IDDateElapsed Time (min)Fan MP-1004-A Fan MP-1004-B Fan MP-1004-C Fan MP-1004-D Fan MP-1004-E Fan MP-1004-F Fan MP-1004-G Fan MP-1004-H0 0.000 0.0000.000 0.000 0.000 0.000 0.000 0.000 0.0000.000 0.000 0.000 0.000 0.000 0.000 0.0001 -1.968 -0.160-2.011 -0.129 -2.100 -0.120 -2.007 -0.454 -2.168-0.466 -2.111 -0.444 -2.069 -0.482 -2.057 -0.1255 -1.970 -0.162 -2.014 -0.130 -2.109 -0.119 -2.009 -0.448-2.175 -0.467 -2.111 -0.442 -2.066 -0.478 -2.057 -0.262NotesVacuum measurements are reported in inches of water column (in-WC).Vacuum measurements were collected post-completion and pre-occupancy. MP = Monitoring Point, min = minuteRadonAway RP265 fan used to test each unitGH7/22/2021Vacuum Monitoring Point Measurements (in-WC)DEFABChttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-010 OPR/Bldg Completion Reports/Building 1004 and 1008/Buildings 1004 and 1008 Sampling/Pilot testing 7-22-2111/11/2021Table E-1Hart Hickman, PC
Table E-2VIMS Pilot TestOld Pineville RoadOld Pineville Townhomes - Building 1008Charlotte, North CarolinaBrownfields Project No. 10061-06-060H&H Job No. NVR-010Unit IDDateElapsed Time (min)Fan MP-1008-A Fan MP-1008-B Fan MP-1008-C Fan MP-1008-D Fan MP-1008-E Fan MP-1008-F Fan MP-1008-G Fan MP-1008-H0 0.000 0.0000.000 0.000 0.000 0.000 0.000 0.000 0.0000.000 0.000 0.000 0.000 0.000 0.000 0.0001 -2.049 -0.465-2.170 -0.178 -2.153 -0.176 -2.171 -0.160 -2.119-0.223 -2.114 -0.182 -2.155 -0.183 -2.160 -0.44410 -2.013 -0.462 -2.169 -0.173 -2.128 -0.173 -2.173 -0.159-2.164 -0.222 -2.145 -0.194 -2.189 -0.261 -2.170 -0.480NotesVacuum measurements are reported in inches of water column (in-WC).Vacuum measurements were collected pre-completion and pre-occupancy. MP = Monitoring Point, min = minuteRadonAway RP265 fan used to test each unitGH8/18/2021Vacuum Monitoring Point Measurements (in-WC)DEFABChttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-010 OPR/Bldg Completion Reports/Building 1004 and 1008/Buildings 1004 and 1008 Sampling/Pilot testing 21081811/11/2021Table E-2 (Page 1 of 1)Hart Hickman, PC
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Appendix F
Laboratory Analytical Report

39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
October 26, 2021
Alexis McKenzie
Hart & Hickman - Charlotte, NC
2923 South Tryon Street, Suite 100
Charlotte, NC 28203
Project Location: 4928 Old Pineville Rd., Charlotte, NC
Client Job Number:
Project Number: NVR-010
Laboratory Work Order Number: 21J1249
Enclosed are results of analyses for samples as received by the laboratory on October 19, 2021. If you have any questions
concerning this report, please feel free to contact me.
Sincerely,
Kerry K. McGee
Project Manager
QA Officer
Katherine Allen
Laboratory Manager
Daren Damboragian
Page 1 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL SUMMARY
10/26/2021Hart & Hickman - Charlotte, NC
2923 South Tryon Street, Suite 100
Charlotte, NC 28203
ATTN: Alexis McKenzie
NVR-010
21J1249
The results of analyses performed on the following samples submitted to Con-Test, a Pace Analytical Laboratory, are found in this report.
PROJECT LOCATION:
PURCHASE ORDER NUMBER:
PROJECT NUMBER:
REPORT DATE:
WORK ORDER NUMBER:
FIELD SAMPLE #LAB ID:MATRIX TESTSAMPLE DESCRIPTION SUB LAB
4928 Old Pineville Rd., Charlotte, NC
NVR-010
SS-1004-A 21J1249-01 Sub Slab EPA TO-15
SS-1004-D 21J1249-02 Sub Slab EPA TO-15
SS-1004-H 21J1249-03 Sub Slab EPA TO-15
SS-1004-DUP 21J1249-04 Sub Slab EPA TO-15
SS-1008-A 21J1249-05 Sub Slab EPA TO-15
SS-1008-D 21J1249-06 Sub Slab EPA TO-15
SS-1008-H 21J1249-07 Sub Slab EPA TO-15
Page 2 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CASE NARRATIVE SUMMARY
All reported results are within defined laboratory quality control objectives unless listed below or otherwise qualified in this report.
EPA TO-15
Qualifications:
Laboratory fortified blank/laboratory control sample recovery outside of control limits. Data validation is not affected since all results are "not
detected" for all samples in this batch for this compound and bias is on the high side.
Analyte & Samples(s) Qualified:
Vinyl Acetate
B293163-BS1, B293205-BS1
Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this compound is likely to be
biased on the low side.
Analyte & Samples(s) Qualified:
Ethyl Acetate
21J1249-07[SS-1008-H], B293205-BLK1, B293205-BS1
Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this compound is likely to be
biased on the high side.
Analyte & Samples(s) Qualified:
Ethanol, Naphthalene
21J1249-01[SS-1004-A], 21J1249-02[SS-1004-D], 21J1249-03[SS-1004-H], 21J1249-04[SS-1004-DUP], 21J1249-05[SS-1008-A], 21J1249-06[SS-1008-D], B293163-BS1
Elevated reporting limit due to high concentration of target compounds.
Analyte & Samples(s) Qualified:
21J1249-01[SS-1004-A], 21J1249-02[SS-1004-D], 21J1249-05[SS-1008-A], 21J1249-07[SS-1008-H]
Initial calibration verification (ICV) did not meet method specifications and was biased on the high side for this compound. Reported result is
estimated.
Analyte & Samples(s) Qualified:
Ethanol
21J1249-01[SS-1004-A], 21J1249-02[SS-1004-D], 21J1249-03[SS-1004-H], 21J1249-04[SS-1004-DUP], 21J1249-05[SS-1008-A], 21J1249-06[SS-1008-D], B293163-BS1,
S064612-CCV1
Initial calibration verification (ICV) did not meet method specifications and was biased on the high side. Data validation is not affected since
sample result was "not detected" for this compound.
Analyte & Samples(s) Qualified:
Vinyl Acetate
B293163-BS1, B293205-BS1, S064612-CCV1, S064623-CCV1
Page 3 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
The results of analyses reported only relate to samples submitted to Con-Test, a Pace Analytical Laboratory, for testing.
I certify that the analyses listed above, unless specifically listed as subcontracted, if any, were performed under my direction according to the approved methodologies listed
in this document, and that based upon my inquiry of those individuals immediately responsible for obtaining the information, the material contained in this report is, to the
best of my knowledge and belief, accurate and complete.
Lisa A. Worthington
Technical Representative
Page 4 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: 4928 Old Pineville Rd., Charlotte
Date Received: 10/19/2021
Work Order: 21J1249Sample Description/Location:
Field Sample #: SS-1004-A
Sample ID: 21J1249-01
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.5
Sampled: 10/18/2021 08:37
Canister ID: 2675
Flow Controller ID: 4152
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
Sample Flags: RL-11
MDL MDL
Acetone 66 20 10/23/21 1:09 BRF160 10481229
Benzene 0.31 0.50 10/23/21 1:09 BRFJ0.99 101.60.12 0.38
Benzyl chloride ND 0.50 10/23/21 1:09 BRFND102.60.22 1.2
Bromodichloromethane ND 0.50 10/23/21 1:09 BRFND103.40.18 1.2
Bromoform ND 0.50 10/23/21 1:09 BRFND105.20.18 1.9
Bromomethane ND 0.50 10/23/21 1:09 BRFND101.90.41 1.6
1,3-Butadiene ND 0.50 10/23/21 1:09 BRFND101.10.35 0.77
2-Butanone (MEK)400 20 10/23/21 1:09 BRF1200 10591.7 4.9
Carbon Disulfide ND 5.0 10/23/21 1:09 BRFND10161.3 4.0
Carbon Tetrachloride ND 0.50 10/23/21 1:09 BRFND103.10.15 0.95
Chlorobenzene ND 0.50 10/23/21 1:09 BRFND102.30.15 0.69
Chloroethane ND 0.50 10/23/21 1:09 BRFND101.30.36 0.96
Chloroform ND 0.50 10/23/21 1:09 BRFND102.40.12 0.59
Chloromethane 0.59 1.0 10/23/21 1:09 BRFJ1.2 102.10.20 0.42
Cyclohexane 2.4 0.50 10/23/21 1:09 BRF8.3 101.70.33 1.1
Dibromochloromethane ND 0.50 10/23/21 1:09 BRFND104.30.17 1.4
1,2-Dibromoethane (EDB)ND 0.50 10/23/21 1:09 BRFND103.80.14 1.1
1,2-Dichlorobenzene ND 0.50 10/23/21 1:09 BRFND103.00.18 1.1
1,3-Dichlorobenzene ND 0.50 10/23/21 1:09 BRFND103.00.12 0.73
1,4-Dichlorobenzene ND 0.50 10/23/21 1:09 BRFND103.00.20 1.2
Dichlorodifluoromethane (Freon 12)0.45 0.50 10/23/21 1:09 BRFJ2.2 102.50.15 0.76
1,1-Dichloroethane ND 0.50 10/23/21 1:09 BRFND102.00.17 0.68
1,2-Dichloroethane ND 0.50 10/23/21 1:09 BRFND102.00.18 0.74
1,1-Dichloroethylene ND 0.50 10/23/21 1:09 BRFND102.00.20 0.78
cis-1,2-Dichloroethylene ND 0.50 10/23/21 1:09 BRFND102.00.17 0.67
trans-1,2-Dichloroethylene ND 0.50 10/23/21 1:09 BRFND102.00.18 0.69
1,2-Dichloropropane ND 0.50 10/23/21 1:09 BRFND102.30.18 0.84
cis-1,3-Dichloropropene ND 0.50 10/23/21 1:09 BRFND102.30.23 1.1
trans-1,3-Dichloropropene ND 0.50 10/23/21 1:09 BRFND102.30.15 0.70
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.50 10/23/21 1:09 BRFND103.50.17 1.2
1,4-Dioxane ND 5.0 10/23/21 1:09 BRFND10180.34 1.2
Ethanol 26 20 10/23/21 1:09 BRFL-05, V-35 49 10386.1 11
Ethyl Acetate ND 5.0 10/23/21 1:09 BRFND10183.0 11
Ethylbenzene ND 0.50 10/23/21 1:09 BRFND102.20.13 0.56
4-Ethyltoluene ND 0.50 10/23/21 1:09 BRFND102.50.16 0.76
Heptane ND 0.50 10/23/21 1:09 BRFND102.00.21 0.84
Hexachlorobutadiene ND 0.50 10/23/21 1:09 BRFND105.30.28 3.0
Hexane ND 20 10/23/21 1:09 BRFND10701.6 5.8
2-Hexanone (MBK)ND 0.50 10/23/21 1:09 BRFND102.00.25 1.0
Isopropanol 10 20 10/23/21 1:09 BRFJ25 10494.6 11
Methyl tert-Butyl Ether (MTBE)ND 0.50 10/23/21 1:09 BRFND101.80.20 0.72
Methylene Chloride 2.0 5.0 10/23/21 1:09 BRFJ7.1 10171.1 4.0
4-Methyl-2-pentanone (MIBK)ND 0.50 10/23/21 1:09 BRFND102.00.26 1.1
Naphthalene ND 0.50 10/23/21 1:09 BRFND102.60.32 1.7
Propene ND 20 10/23/21 1:09 BRFND10341.7 2.9
Styrene ND 0.50 10/23/21 1:09 BRFND102.10.16 0.67
1,1,2,2-Tetrachloroethane ND 0.50 10/23/21 1:09 BRFND103.40.15 1.1
Page 5 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: 4928 Old Pineville Rd., Charlotte
Date Received: 10/19/2021
Work Order: 21J1249Sample Description/Location:
Field Sample #: SS-1004-A
Sample ID: 21J1249-01
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.5
Sampled: 10/18/2021 08:37
Canister ID: 2675
Flow Controller ID: 4152
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
Sample Flags: RL-11
MDL MDL
Tetrachloroethylene ND 0.50 10/23/21 1:09 BRFND103.40.15 1.0
Tetrahydrofuran 81 5.0 10/23/21 1:09 BRF240 10151.2 3.6
Toluene 0.71 0.50 10/23/21 1:09 BRF2.7 101.90.21 0.79
1,2,4-Trichlorobenzene ND 0.50 10/23/21 1:09 BRFND103.70.35 2.6
1,1,1-Trichloroethane ND 0.50 10/23/21 1:09 BRFND102.70.23 1.3
1,1,2-Trichloroethane ND 0.50 10/23/21 1:09 BRFND102.70.20 1.1
Trichloroethylene ND 0.50 10/23/21 1:09 BRFND102.70.18 0.99
Trichlorofluoromethane (Freon 11)0.24 2.0 10/23/21 1:09 BRFJ1.3 10110.20 1.1
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)ND 2.0 10/23/21 1:09 BRFND10150.18 1.4
1,2,4-Trimethylbenzene ND 0.50 10/23/21 1:09 BRFND102.50.15 0.73
1,3,5-Trimethylbenzene ND 0.50 10/23/21 1:09 BRFND102.50.14 0.67
Vinyl Acetate ND 10 10/23/21 1:09 BRFND10350.94 3.3
Vinyl Chloride ND 0.50 10/23/21 1:09 BRFND101.30.20 0.51
m&p-Xylene 0.28 1.0 10/23/21 1:09 BRFJ1.2 104.30.28 1.2
o-Xylene ND 0.50 10/23/21 1:09 BRFND102.20.13 0.58
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)104 10/23/21 1:0970-130
Page 6 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: 4928 Old Pineville Rd., Charlotte
Date Received: 10/19/2021
Work Order: 21J1249Sample Description/Location:
Field Sample #: SS-1004-D
Sample ID: 21J1249-02
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -4.9
Sampled: 10/18/2021 09:20
Canister ID: 2666
Flow Controller ID: 4331
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
Sample Flags: RL-11
MDL MDL
Acetone 45 20 10/23/21 1:49 BRF110 10481229
Benzene ND 0.50 10/23/21 1:49 BRFND101.60.12 0.38
Benzyl chloride ND 0.50 10/23/21 1:49 BRFND102.60.22 1.2
Bromodichloromethane ND 0.50 10/23/21 1:49 BRFND103.40.18 1.2
Bromoform ND 0.50 10/23/21 1:49 BRFND105.20.18 1.9
Bromomethane ND 0.50 10/23/21 1:49 BRFND101.90.41 1.6
1,3-Butadiene ND 0.50 10/23/21 1:49 BRFND101.10.35 0.77
2-Butanone (MEK)240 20 10/23/21 1:49 BRF710 10591.7 4.9
Carbon Disulfide ND 5.0 10/23/21 1:49 BRFND10161.3 4.0
Carbon Tetrachloride ND 0.50 10/23/21 1:49 BRFND103.10.15 0.95
Chlorobenzene ND 0.50 10/23/21 1:49 BRFND102.30.15 0.69
Chloroethane ND 0.50 10/23/21 1:49 BRFND101.30.36 0.96
Chloroform ND 0.50 10/23/21 1:49 BRFND102.40.12 0.59
Chloromethane 0.43 1.0 10/23/21 1:49 BRFJ0.89 102.10.20 0.42
Cyclohexane ND 0.50 10/23/21 1:49 BRFND101.70.33 1.1
Dibromochloromethane ND 0.50 10/23/21 1:49 BRFND104.30.17 1.4
1,2-Dibromoethane (EDB)ND 0.50 10/23/21 1:49 BRFND103.80.14 1.1
1,2-Dichlorobenzene ND 0.50 10/23/21 1:49 BRFND103.00.18 1.1
1,3-Dichlorobenzene ND 0.50 10/23/21 1:49 BRFND103.00.12 0.73
1,4-Dichlorobenzene ND 0.50 10/23/21 1:49 BRFND103.00.20 1.2
Dichlorodifluoromethane (Freon 12)0.46 0.50 10/23/21 1:49 BRFJ2.3 102.50.15 0.76
1,1-Dichloroethane ND 0.50 10/23/21 1:49 BRFND102.00.17 0.68
1,2-Dichloroethane ND 0.50 10/23/21 1:49 BRFND102.00.18 0.74
1,1-Dichloroethylene ND 0.50 10/23/21 1:49 BRFND102.00.20 0.78
cis-1,2-Dichloroethylene ND 0.50 10/23/21 1:49 BRFND102.00.17 0.67
trans-1,2-Dichloroethylene ND 0.50 10/23/21 1:49 BRFND102.00.18 0.69
1,2-Dichloropropane ND 0.50 10/23/21 1:49 BRFND102.30.18 0.84
cis-1,3-Dichloropropene ND 0.50 10/23/21 1:49 BRFND102.30.23 1.1
trans-1,3-Dichloropropene ND 0.50 10/23/21 1:49 BRFND102.30.15 0.70
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.50 10/23/21 1:49 BRFND103.50.17 1.2
1,4-Dioxane ND 5.0 10/23/21 1:49 BRFND10180.34 1.2
Ethanol 14 20 10/23/21 1:49 BRFL-05, V-35, J 27 10386.1 11
Ethyl Acetate ND 5.0 10/23/21 1:49 BRFND10183.0 11
Ethylbenzene ND 0.50 10/23/21 1:49 BRFND102.20.13 0.56
4-Ethyltoluene ND 0.50 10/23/21 1:49 BRFND102.50.16 0.76
Heptane ND 0.50 10/23/21 1:49 BRFND102.00.21 0.84
Hexachlorobutadiene ND 0.50 10/23/21 1:49 BRFND105.30.28 3.0
Hexane ND 20 10/23/21 1:49 BRFND10701.6 5.8
2-Hexanone (MBK)ND 0.50 10/23/21 1:49 BRFND102.00.25 1.0
Isopropanol ND 20 10/23/21 1:49 BRFND10494.6 11
Methyl tert-Butyl Ether (MTBE)ND 0.50 10/23/21 1:49 BRFND101.80.20 0.72
Methylene Chloride ND 5.0 10/23/21 1:49 BRFND10171.1 4.0
4-Methyl-2-pentanone (MIBK)ND 0.50 10/23/21 1:49 BRFND102.00.26 1.1
Naphthalene ND 0.50 10/23/21 1:49 BRFND102.60.32 1.7
Propene 2.5 20 10/23/21 1:49 BRFJ4.3 10341.7 2.9
Styrene ND 0.50 10/23/21 1:49 BRFND102.10.16 0.67
1,1,2,2-Tetrachloroethane ND 0.50 10/23/21 1:49 BRFND103.40.15 1.1
Page 7 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: 4928 Old Pineville Rd., Charlotte
Date Received: 10/19/2021
Work Order: 21J1249Sample Description/Location:
Field Sample #: SS-1004-D
Sample ID: 21J1249-02
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -4.9
Sampled: 10/18/2021 09:20
Canister ID: 2666
Flow Controller ID: 4331
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
Sample Flags: RL-11
MDL MDL
Tetrachloroethylene ND 0.50 10/23/21 1:49 BRFND103.40.15 1.0
Tetrahydrofuran 49 5.0 10/23/21 1:49 BRF150 10151.2 3.6
Toluene 0.27 0.50 10/23/21 1:49 BRFJ1.0 101.90.21 0.79
1,2,4-Trichlorobenzene ND 0.50 10/23/21 1:49 BRFND103.70.35 2.6
1,1,1-Trichloroethane ND 0.50 10/23/21 1:49 BRFND102.70.23 1.3
1,1,2-Trichloroethane ND 0.50 10/23/21 1:49 BRFND102.70.20 1.1
Trichloroethylene ND 0.50 10/23/21 1:49 BRFND102.70.18 0.99
Trichlorofluoromethane (Freon 11)0.23 2.0 10/23/21 1:49 BRFJ1.3 10110.20 1.1
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)ND 2.0 10/23/21 1:49 BRFND10150.18 1.4
1,2,4-Trimethylbenzene ND 0.50 10/23/21 1:49 BRFND102.50.15 0.73
1,3,5-Trimethylbenzene ND 0.50 10/23/21 1:49 BRFND102.50.14 0.67
Vinyl Acetate ND 10 10/23/21 1:49 BRFND10350.94 3.3
Vinyl Chloride ND 0.50 10/23/21 1:49 BRFND101.30.20 0.51
m&p-Xylene ND 1.0 10/23/21 1:49 BRFND104.30.28 1.2
o-Xylene ND 0.50 10/23/21 1:49 BRFND102.20.13 0.58
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)104 10/23/21 1:4970-130
Page 8 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: 4928 Old Pineville Rd., Charlotte
Date Received: 10/19/2021
Work Order: 21J1249Sample Description/Location:
Field Sample #: SS-1004-H
Sample ID: 21J1249-03
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -4
Receipt Vacuum(in Hg): -4.8
Sampled: 10/18/2021 10:10
Canister ID: 2561
Flow Controller ID: 4281
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 44 8.0 10/23/21 2:31 BRF100 4194.8 11
Benzene 0.18 0.20 10/23/21 2:31 BRFJ0.56 40.640.048 0.15
Benzyl chloride ND 0.20 10/23/21 2:31 BRFND41.00.090 0.47
Bromodichloromethane ND 0.20 10/23/21 2:31 BRFND41.30.073 0.49
Bromoform ND 0.20 10/23/21 2:31 BRFND42.10.072 0.74
Bromomethane ND 0.20 10/23/21 2:31 BRFND40.780.16 0.63
1,3-Butadiene ND 0.20 10/23/21 2:31 BRFND40.440.14 0.31
2-Butanone (MEK)170 8.0 10/23/21 2:31 BRF500 4240.66 2.0
Carbon Disulfide ND 2.0 10/23/21 2:31 BRFND46.20.51 1.6
Carbon Tetrachloride 0.068 0.20 10/23/21 2:31 BRFJ0.43 41.30.060 0.38
Chlorobenzene ND 0.20 10/23/21 2:31 BRFND40.920.060 0.27
Chloroethane ND 0.20 10/23/21 2:31 BRFND40.530.15 0.39
Chloroform ND 0.20 10/23/21 2:31 BRFND40.980.048 0.24
Chloromethane 0.45 0.40 10/23/21 2:31 BRF0.93 40.830.082 0.17
Cyclohexane 1.4 0.20 10/23/21 2:31 BRF4.7 40.690.13 0.46
Dibromochloromethane ND 0.20 10/23/21 2:31 BRFND41.70.067 0.57
1,2-Dibromoethane (EDB)ND 0.20 10/23/21 2:31 BRFND41.50.056 0.43
1,2-Dichlorobenzene ND 0.20 10/23/21 2:31 BRFND41.20.074 0.44
1,3-Dichlorobenzene ND 0.20 10/23/21 2:31 BRFND41.20.048 0.29
1,4-Dichlorobenzene ND 0.20 10/23/21 2:31 BRFND41.20.081 0.49
Dichlorodifluoromethane (Freon 12)0.37 0.20 10/23/21 2:31 BRF1.8 40.990.061 0.30
1,1-Dichloroethane ND 0.20 10/23/21 2:31 BRFND40.810.067 0.27
1,2-Dichloroethane ND 0.20 10/23/21 2:31 BRFND40.810.073 0.30
1,1-Dichloroethylene ND 0.20 10/23/21 2:31 BRFND40.790.079 0.31
cis-1,2-Dichloroethylene ND 0.20 10/23/21 2:31 BRFND40.790.068 0.27
trans-1,2-Dichloroethylene ND 0.20 10/23/21 2:31 BRFND40.790.070 0.28
1,2-Dichloropropane ND 0.20 10/23/21 2:31 BRFND40.920.072 0.33
cis-1,3-Dichloropropene ND 0.20 10/23/21 2:31 BRFND40.910.093 0.42
trans-1,3-Dichloropropene ND 0.20 10/23/21 2:31 BRFND40.910.062 0.28
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 10/23/21 2:31 BRFND41.40.069 0.48
1,4-Dioxane ND 2.0 10/23/21 2:31 BRFND47.20.14 0.49
Ethanol 27 8.0 10/23/21 2:31 BRFL-05, V-35 52 4152.4 4.6
Ethyl Acetate 2.0 2.0 10/23/21 2:31 BRFJ7.1 47.21.2 4.3
Ethylbenzene 0.084 0.20 10/23/21 2:31 BRFJ0.36 40.870.052 0.22
4-Ethyltoluene 0.14 0.20 10/23/21 2:31 BRFJ0.69 40.980.062 0.30
Heptane 0.22 0.20 10/23/21 2:31 BRF0.90 40.820.082 0.34
Hexachlorobutadiene ND 0.20 10/23/21 2:31 BRFND42.10.11 1.2
Hexane 0.97 8.0 10/23/21 2:31 BRFJ3.4 4280.66 2.3
2-Hexanone (MBK)ND 0.20 10/23/21 2:31 BRFND40.820.10 0.41
Isopropanol 1.9 8.0 10/23/21 2:31 BRFJ4.7 4201.8 4.5
Methyl tert-Butyl Ether (MTBE)ND 0.20 10/23/21 2:31 BRFND40.720.080 0.29
Methylene Chloride 2.1 2.0 10/23/21 2:31 BRF7.4 46.90.46 1.6
4-Methyl-2-pentanone (MIBK)ND 0.20 10/23/21 2:31 BRFND40.820.10 0.42
Naphthalene 0.17 0.20 10/23/21 2:31 BRFL-05, J 0.88 41.00.13 0.66
Propene 1.9 8.0 10/23/21 2:31 BRFJ3.3 4140.67 1.2
Styrene 0.084 0.20 10/23/21 2:31 BRFJ0.36 40.850.063 0.27
1,1,2,2-Tetrachloroethane ND 0.20 10/23/21 2:31 BRFND41.40.061 0.42
Page 9 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: 4928 Old Pineville Rd., Charlotte
Date Received: 10/19/2021
Work Order: 21J1249Sample Description/Location:
Field Sample #: SS-1004-H
Sample ID: 21J1249-03
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -4
Receipt Vacuum(in Hg): -4.8
Sampled: 10/18/2021 10:10
Canister ID: 2561
Flow Controller ID: 4281
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Tetrachloroethylene ND 0.20 10/23/21 2:31 BRFND41.40.059 0.40
Tetrahydrofuran 40 2.0 10/23/21 2:31 BRF120 45.90.49 1.5
Toluene 0.77 0.20 10/23/21 2:31 BRF2.9 40.750.084 0.32
1,2,4-Trichlorobenzene ND 0.20 10/23/21 2:31 BRFND41.50.14 1.0
1,1,1-Trichloroethane ND 0.20 10/23/21 2:31 BRFND41.10.092 0.50
1,1,2-Trichloroethane ND 0.20 10/23/21 2:31 BRFND41.10.080 0.43
Trichloroethylene ND 0.20 10/23/21 2:31 BRFND41.10.074 0.40
Trichlorofluoromethane (Freon 11)0.26 0.80 10/23/21 2:31 BRFJ1.4 44.50.080 0.45
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.072 0.80 10/23/21 2:31 BRFJ0.55 46.10.071 0.54
1,2,4-Trimethylbenzene ND 0.20 10/23/21 2:31 BRFND40.980.059 0.29
1,3,5-Trimethylbenzene 0.16 0.20 10/23/21 2:31 BRFJ0.81 40.980.055 0.27
Vinyl Acetate ND 4.0 10/23/21 2:31 BRFND4140.37 1.3
Vinyl Chloride ND 0.20 10/23/21 2:31 BRFND40.510.079 0.20
m&p-Xylene 0.22 0.40 10/23/21 2:31 BRFJ0.97 41.70.11 0.48
o-Xylene 0.088 0.20 10/23/21 2:31 BRFJ0.38 40.870.054 0.23
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)103 10/23/21 2:3170-130
Page 10 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: 4928 Old Pineville Rd., Charlotte
Date Received: 10/19/2021
Work Order: 21J1249Sample Description/Location:
Field Sample #: SS-1004-DUP
Sample ID: 21J1249-04
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -4
Receipt Vacuum(in Hg): -5.1
Sampled: 10/18/2021 00:00
Canister ID: 2644
Flow Controller ID: 4281
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 44 8.0 10/23/21 3:12 BRF100 4194.8 11
Benzene 0.18 0.20 10/23/21 3:12 BRFJ0.58 40.640.048 0.15
Benzyl chloride ND 0.20 10/23/21 3:12 BRFND41.00.090 0.47
Bromodichloromethane ND 0.20 10/23/21 3:12 BRFND41.30.073 0.49
Bromoform ND 0.20 10/23/21 3:12 BRFND42.10.072 0.74
Bromomethane ND 0.20 10/23/21 3:12 BRFND40.780.16 0.63
1,3-Butadiene ND 0.20 10/23/21 3:12 BRFND40.440.14 0.31
2-Butanone (MEK)170 8.0 10/23/21 3:12 BRF510 4240.66 2.0
Carbon Disulfide ND 2.0 10/23/21 3:12 BRFND46.20.51 1.6
Carbon Tetrachloride 0.068 0.20 10/23/21 3:12 BRFJ0.43 41.30.060 0.38
Chlorobenzene ND 0.20 10/23/21 3:12 BRFND40.920.060 0.27
Chloroethane ND 0.20 10/23/21 3:12 BRFND40.530.15 0.39
Chloroform ND 0.20 10/23/21 3:12 BRFND40.980.048 0.24
Chloromethane 0.49 0.40 10/23/21 3:12 BRF1.0 40.830.082 0.17
Cyclohexane 1.4 0.20 10/23/21 3:12 BRF4.9 40.690.13 0.46
Dibromochloromethane ND 0.20 10/23/21 3:12 BRFND41.70.067 0.57
1,2-Dibromoethane (EDB)ND 0.20 10/23/21 3:12 BRFND41.50.056 0.43
1,2-Dichlorobenzene ND 0.20 10/23/21 3:12 BRFND41.20.074 0.44
1,3-Dichlorobenzene ND 0.20 10/23/21 3:12 BRFND41.20.048 0.29
1,4-Dichlorobenzene ND 0.20 10/23/21 3:12 BRFND41.20.081 0.49
Dichlorodifluoromethane (Freon 12)0.37 0.20 10/23/21 3:12 BRF1.8 40.990.061 0.30
1,1-Dichloroethane ND 0.20 10/23/21 3:12 BRFND40.810.067 0.27
1,2-Dichloroethane ND 0.20 10/23/21 3:12 BRFND40.810.073 0.30
1,1-Dichloroethylene ND 0.20 10/23/21 3:12 BRFND40.790.079 0.31
cis-1,2-Dichloroethylene ND 0.20 10/23/21 3:12 BRFND40.790.068 0.27
trans-1,2-Dichloroethylene ND 0.20 10/23/21 3:12 BRFND40.790.070 0.28
1,2-Dichloropropane ND 0.20 10/23/21 3:12 BRFND40.920.072 0.33
cis-1,3-Dichloropropene ND 0.20 10/23/21 3:12 BRFND40.910.093 0.42
trans-1,3-Dichloropropene ND 0.20 10/23/21 3:12 BRFND40.910.062 0.28
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 10/23/21 3:12 BRFND41.40.069 0.48
1,4-Dioxane ND 2.0 10/23/21 3:12 BRFND47.20.14 0.49
Ethanol 26 8.0 10/23/21 3:12 BRFL-05, V-35 49 4152.4 4.6
Ethyl Acetate 3.0 2.0 10/23/21 3:12 BRF11 47.21.2 4.3
Ethylbenzene 0.084 0.20 10/23/21 3:12 BRFJ0.36 40.870.052 0.22
4-Ethyltoluene 0.20 0.20 10/23/21 3:12 BRFJ0.96 40.980.062 0.30
Heptane 0.16 0.20 10/23/21 3:12 BRFJ0.64 40.820.082 0.34
Hexachlorobutadiene ND 0.20 10/23/21 3:12 BRFND42.10.11 1.2
Hexane 0.89 8.0 10/23/21 3:12 BRFJ3.1 4280.66 2.3
2-Hexanone (MBK)ND 0.20 10/23/21 3:12 BRFND40.820.10 0.41
Isopropanol 3.0 8.0 10/23/21 3:12 BRFJ7.3 4201.8 4.5
Methyl tert-Butyl Ether (MTBE)ND 0.20 10/23/21 3:12 BRFND40.720.080 0.29
Methylene Chloride 2.3 2.0 10/23/21 3:12 BRF7.9 46.90.46 1.6
4-Methyl-2-pentanone (MIBK)ND 0.20 10/23/21 3:12 BRFND40.820.10 0.42
Naphthalene 0.15 0.20 10/23/21 3:12 BRFL-05, J 0.80 41.00.13 0.66
Propene 1.8 8.0 10/23/21 3:12 BRFJ3.1 4140.67 1.2
Styrene 0.076 0.20 10/23/21 3:12 BRFJ0.32 40.850.063 0.27
1,1,2,2-Tetrachloroethane ND 0.20 10/23/21 3:12 BRFND41.40.061 0.42
Page 11 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: 4928 Old Pineville Rd., Charlotte
Date Received: 10/19/2021
Work Order: 21J1249Sample Description/Location:
Field Sample #: SS-1004-DUP
Sample ID: 21J1249-04
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -4
Receipt Vacuum(in Hg): -5.1
Sampled: 10/18/2021 00:00
Canister ID: 2644
Flow Controller ID: 4281
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Tetrachloroethylene ND 0.20 10/23/21 3:12 BRFND41.40.059 0.40
Tetrahydrofuran 38 2.0 10/23/21 3:12 BRF110 45.90.49 1.5
Toluene 0.84 0.20 10/23/21 3:12 BRF3.2 40.750.084 0.32
1,2,4-Trichlorobenzene ND 0.20 10/23/21 3:12 BRFND41.50.14 1.0
1,1,1-Trichloroethane ND 0.20 10/23/21 3:12 BRFND41.10.092 0.50
1,1,2-Trichloroethane ND 0.20 10/23/21 3:12 BRFND41.10.080 0.43
Trichloroethylene ND 0.20 10/23/21 3:12 BRFND41.10.074 0.40
Trichlorofluoromethane (Freon 11)0.26 0.80 10/23/21 3:12 BRFJ1.5 44.50.080 0.45
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.076 0.80 10/23/21 3:12 BRFJ0.58 46.10.071 0.54
1,2,4-Trimethylbenzene ND 0.20 10/23/21 3:12 BRFND40.980.059 0.29
1,3,5-Trimethylbenzene 0.20 0.20 10/23/21 3:12 BRFJ0.96 40.980.055 0.27
Vinyl Acetate ND 4.0 10/23/21 3:12 BRFND4140.37 1.3
Vinyl Chloride ND 0.20 10/23/21 3:12 BRFND40.510.079 0.20
m&p-Xylene 0.23 0.40 10/23/21 3:12 BRFJ1.0 41.70.11 0.48
o-Xylene 0.10 0.20 10/23/21 3:12 BRFJ0.43 40.870.054 0.23
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)104 10/23/21 3:1270-130
Page 12 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: 4928 Old Pineville Rd., Charlotte
Date Received: 10/19/2021
Work Order: 21J1249Sample Description/Location:
Field Sample #: SS-1008-A
Sample ID: 21J1249-05
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -6
Receipt Vacuum(in Hg): -5.9
Sampled: 10/18/2021 12:16
Canister ID: 2645
Flow Controller ID: 4252
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
Sample Flags: RL-11
MDL MDL
Acetone 100 20 10/23/21 3:53 BRF240 10481229
Benzene ND 0.50 10/23/21 3:53 BRFND101.60.12 0.38
Benzyl chloride ND 0.50 10/23/21 3:53 BRFND102.60.22 1.2
Bromodichloromethane ND 0.50 10/23/21 3:53 BRFND103.40.18 1.2
Bromoform ND 0.50 10/23/21 3:53 BRFND105.20.18 1.9
Bromomethane ND 0.50 10/23/21 3:53 BRFND101.90.41 1.6
1,3-Butadiene ND 0.50 10/23/21 3:53 BRFND101.10.35 0.77
2-Butanone (MEK)450 40 10/25/21 13:46 TPH1300 201203.3 9.8
Carbon Disulfide ND 5.0 10/23/21 3:53 BRFND10161.3 4.0
Carbon Tetrachloride ND 0.50 10/23/21 3:53 BRFND103.10.15 0.95
Chlorobenzene ND 0.50 10/23/21 3:53 BRFND102.30.15 0.69
Chloroethane ND 0.50 10/23/21 3:53 BRFND101.30.36 0.96
Chloroform ND 0.50 10/23/21 3:53 BRFND102.40.12 0.59
Chloromethane 0.34 1.0 10/23/21 3:53 BRFJ0.70 102.10.20 0.42
Cyclohexane 2.0 0.50 10/23/21 3:53 BRF6.7 101.70.33 1.1
Dibromochloromethane ND 0.50 10/23/21 3:53 BRFND104.30.17 1.4
1,2-Dibromoethane (EDB)ND 0.50 10/23/21 3:53 BRFND103.80.14 1.1
1,2-Dichlorobenzene ND 0.50 10/23/21 3:53 BRFND103.00.18 1.1
1,3-Dichlorobenzene ND 0.50 10/23/21 3:53 BRFND103.00.12 0.73
1,4-Dichlorobenzene ND 0.50 10/23/21 3:53 BRFND103.00.20 1.2
Dichlorodifluoromethane (Freon 12)0.47 0.50 10/23/21 3:53 BRFJ2.3 102.50.15 0.76
1,1-Dichloroethane ND 0.50 10/23/21 3:53 BRFND102.00.17 0.68
1,2-Dichloroethane ND 0.50 10/23/21 3:53 BRFND102.00.18 0.74
1,1-Dichloroethylene ND 0.50 10/23/21 3:53 BRFND102.00.20 0.78
cis-1,2-Dichloroethylene ND 0.50 10/23/21 3:53 BRFND102.00.17 0.67
trans-1,2-Dichloroethylene ND 0.50 10/23/21 3:53 BRFND102.00.18 0.69
1,2-Dichloropropane ND 0.50 10/23/21 3:53 BRFND102.30.18 0.84
cis-1,3-Dichloropropene ND 0.50 10/23/21 3:53 BRFND102.30.23 1.1
trans-1,3-Dichloropropene ND 0.50 10/23/21 3:53 BRFND102.30.15 0.70
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.50 10/23/21 3:53 BRFND103.50.17 1.2
1,4-Dioxane ND 5.0 10/23/21 3:53 BRFND10180.34 1.2
Ethanol 20 20 10/23/21 3:53 BRFL-05, V-35, J 37 10386.1 11
Ethyl Acetate ND 5.0 10/23/21 3:53 BRFND10183.0 11
Ethylbenzene ND 0.50 10/23/21 3:53 BRFND102.20.13 0.56
4-Ethyltoluene ND 0.50 10/23/21 3:53 BRFND102.50.16 0.76
Heptane ND 0.50 10/23/21 3:53 BRFND102.00.21 0.84
Hexachlorobutadiene ND 0.50 10/23/21 3:53 BRFND105.30.28 3.0
Hexane ND 20 10/23/21 3:53 BRFND10701.6 5.8
2-Hexanone (MBK)ND 0.50 10/23/21 3:53 BRFND102.00.25 1.0
Isopropanol 6.8 20 10/23/21 3:53 BRFJ17 10494.6 11
Methyl tert-Butyl Ether (MTBE)ND 0.50 10/23/21 3:53 BRFND101.80.20 0.72
Methylene Chloride ND 5.0 10/23/21 3:53 BRFND10171.1 4.0
4-Methyl-2-pentanone (MIBK)ND 0.50 10/23/21 3:53 BRFND102.00.26 1.1
Naphthalene 0.32 0.50 10/23/21 3:53 BRFL-05, J 1.7 102.60.32 1.7
Propene ND 20 10/23/21 3:53 BRFND10341.7 2.9
Styrene ND 0.50 10/23/21 3:53 BRFND102.10.16 0.67
1,1,2,2-Tetrachloroethane ND 0.50 10/23/21 3:53 BRFND103.40.15 1.1
Page 13 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: 4928 Old Pineville Rd., Charlotte
Date Received: 10/19/2021
Work Order: 21J1249Sample Description/Location:
Field Sample #: SS-1008-A
Sample ID: 21J1249-05
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -6
Receipt Vacuum(in Hg): -5.9
Sampled: 10/18/2021 12:16
Canister ID: 2645
Flow Controller ID: 4252
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
Sample Flags: RL-11
MDL MDL
Tetrachloroethylene ND 0.50 10/23/21 3:53 BRFND103.40.15 1.0
Tetrahydrofuran 130 5.0 10/23/21 3:53 BRF380 10151.2 3.6
Toluene 0.33 0.50 10/23/21 3:53 BRFJ1.2 101.90.21 0.79
1,2,4-Trichlorobenzene ND 0.50 10/23/21 3:53 BRFND103.70.35 2.6
1,1,1-Trichloroethane ND 0.50 10/23/21 3:53 BRFND102.70.23 1.3
1,1,2-Trichloroethane ND 0.50 10/23/21 3:53 BRFND102.70.20 1.1
Trichloroethylene ND 0.50 10/23/21 3:53 BRFND102.70.18 0.99
Trichlorofluoromethane (Freon 11)0.41 2.0 10/23/21 3:53 BRFJ2.3 10110.20 1.1
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)ND 2.0 10/23/21 3:53 BRFND10150.18 1.4
1,2,4-Trimethylbenzene ND 0.50 10/23/21 3:53 BRFND102.50.15 0.73
1,3,5-Trimethylbenzene ND 0.50 10/23/21 3:53 BRFND102.50.14 0.67
Vinyl Acetate ND 10 10/23/21 3:53 BRFND10350.94 3.3
Vinyl Chloride ND 0.50 10/23/21 3:53 BRFND101.30.20 0.51
m&p-Xylene ND 1.0 10/23/21 3:53 BRFND104.30.28 1.2
o-Xylene ND 0.50 10/23/21 3:53 BRFND102.20.13 0.58
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)103 10/25/21 13:4670-130
4-Bromofluorobenzene (1)104 10/23/21 3:5370-130
Page 14 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: 4928 Old Pineville Rd., Charlotte
Date Received: 10/19/2021
Work Order: 21J1249Sample Description/Location:
Field Sample #: SS-1008-D
Sample ID: 21J1249-06
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -26
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.8
Sampled: 10/18/2021 11:39
Canister ID: 2679
Flow Controller ID: 4139
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 22 8.0 10/23/21 4:34 BRF51 4194.8 11
Benzene 0.13 0.20 10/23/21 4:34 BRFJ0.41 40.640.048 0.15
Benzyl chloride ND 0.20 10/23/21 4:34 BRFND41.00.090 0.47
Bromodichloromethane ND 0.20 10/23/21 4:34 BRFND41.30.073 0.49
Bromoform ND 0.20 10/23/21 4:34 BRFND42.10.072 0.74
Bromomethane ND 0.20 10/23/21 4:34 BRFND40.780.16 0.63
1,3-Butadiene ND 0.20 10/23/21 4:34 BRFND40.440.14 0.31
2-Butanone (MEK)64 8.0 10/23/21 4:34 BRF190 4240.66 2.0
Carbon Disulfide ND 2.0 10/23/21 4:34 BRFND46.20.51 1.6
Carbon Tetrachloride 0.068 0.20 10/23/21 4:34 BRFJ0.43 41.30.060 0.38
Chlorobenzene ND 0.20 10/23/21 4:34 BRFND40.920.060 0.27
Chloroethane ND 0.20 10/23/21 4:34 BRFND40.530.15 0.39
Chloroform ND 0.20 10/23/21 4:34 BRFND40.980.048 0.24
Chloromethane 0.62 0.40 10/23/21 4:34 BRF1.3 40.830.082 0.17
Cyclohexane 3.4 0.20 10/23/21 4:34 BRF12 40.690.13 0.46
Dibromochloromethane ND 0.20 10/23/21 4:34 BRFND41.70.067 0.57
1,2-Dibromoethane (EDB)ND 0.20 10/23/21 4:34 BRFND41.50.056 0.43
1,2-Dichlorobenzene ND 0.20 10/23/21 4:34 BRFND41.20.074 0.44
1,3-Dichlorobenzene ND 0.20 10/23/21 4:34 BRFND41.20.048 0.29
1,4-Dichlorobenzene ND 0.20 10/23/21 4:34 BRFND41.20.081 0.49
Dichlorodifluoromethane (Freon 12)0.36 0.20 10/23/21 4:34 BRF1.8 40.990.061 0.30
1,1-Dichloroethane ND 0.20 10/23/21 4:34 BRFND40.810.067 0.27
1,2-Dichloroethane ND 0.20 10/23/21 4:34 BRFND40.810.073 0.30
1,1-Dichloroethylene ND 0.20 10/23/21 4:34 BRFND40.790.079 0.31
cis-1,2-Dichloroethylene ND 0.20 10/23/21 4:34 BRFND40.790.068 0.27
trans-1,2-Dichloroethylene ND 0.20 10/23/21 4:34 BRFND40.790.070 0.28
1,2-Dichloropropane ND 0.20 10/23/21 4:34 BRFND40.920.072 0.33
cis-1,3-Dichloropropene ND 0.20 10/23/21 4:34 BRFND40.910.093 0.42
trans-1,3-Dichloropropene ND 0.20 10/23/21 4:34 BRFND40.910.062 0.28
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 10/23/21 4:34 BRFND41.40.069 0.48
1,4-Dioxane ND 2.0 10/23/21 4:34 BRFND47.20.14 0.49
Ethanol 19 8.0 10/23/21 4:34 BRFL-05, V-35 36 4152.4 4.6
Ethyl Acetate ND 2.0 10/23/21 4:34 BRFND47.21.2 4.3
Ethylbenzene 0.088 0.20 10/23/21 4:34 BRFJ0.38 40.870.052 0.22
4-Ethyltoluene 0.072 0.20 10/23/21 4:34 BRFJ0.35 40.980.062 0.30
Heptane 0.17 0.20 10/23/21 4:34 BRFJ0.69 40.820.082 0.34
Hexachlorobutadiene ND 0.20 10/23/21 4:34 BRFND42.10.11 1.2
Hexane 1.0 8.0 10/23/21 4:34 BRFJ3.6 4280.66 2.3
2-Hexanone (MBK)ND 0.20 10/23/21 4:34 BRFND40.820.10 0.41
Isopropanol ND 8.0 10/23/21 4:34 BRFND4201.8 4.5
Methyl tert-Butyl Ether (MTBE)ND 0.20 10/23/21 4:34 BRFND40.720.080 0.29
Methylene Chloride ND 2.0 10/23/21 4:34 BRFND46.90.46 1.6
4-Methyl-2-pentanone (MIBK)ND 0.20 10/23/21 4:34 BRFND40.820.10 0.42
Naphthalene 0.17 0.20 10/23/21 4:34 BRFL-05, J 0.90 41.00.13 0.66
Propene 1.1 8.0 10/23/21 4:34 BRFJ1.8 4140.67 1.2
Styrene ND 0.20 10/23/21 4:34 BRFND40.850.063 0.27
1,1,2,2-Tetrachloroethane ND 0.20 10/23/21 4:34 BRFND41.40.061 0.42
Page 15 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: 4928 Old Pineville Rd., Charlotte
Date Received: 10/19/2021
Work Order: 21J1249Sample Description/Location:
Field Sample #: SS-1008-D
Sample ID: 21J1249-06
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -26
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.8
Sampled: 10/18/2021 11:39
Canister ID: 2679
Flow Controller ID: 4139
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Tetrachloroethylene ND 0.20 10/23/21 4:34 BRFND41.40.059 0.40
Tetrahydrofuran 15 2.0 10/23/21 4:34 BRF43 45.90.49 1.5
Toluene 1.1 0.20 10/23/21 4:34 BRF4.2 40.750.084 0.32
1,2,4-Trichlorobenzene ND 0.20 10/23/21 4:34 BRFND41.50.14 1.0
1,1,1-Trichloroethane ND 0.20 10/23/21 4:34 BRFND41.10.092 0.50
1,1,2-Trichloroethane ND 0.20 10/23/21 4:34 BRFND41.10.080 0.43
Trichloroethylene ND 0.20 10/23/21 4:34 BRFND41.10.074 0.40
Trichlorofluoromethane (Freon 11)0.22 0.80 10/23/21 4:34 BRFJ1.3 44.50.080 0.45
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.072 0.80 10/23/21 4:34 BRFJ0.55 46.10.071 0.54
1,2,4-Trimethylbenzene ND 0.20 10/23/21 4:34 BRFND40.980.059 0.29
1,3,5-Trimethylbenzene 0.084 0.20 10/23/21 4:34 BRFJ0.41 40.980.055 0.27
Vinyl Acetate ND 4.0 10/23/21 4:34 BRFND4140.37 1.3
Vinyl Chloride ND 0.20 10/23/21 4:34 BRFND40.510.079 0.20
m&p-Xylene 0.24 0.40 10/23/21 4:34 BRFJ1.1 41.70.11 0.48
o-Xylene 0.092 0.20 10/23/21 4:34 BRFJ0.40 40.870.054 0.23
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)104 10/23/21 4:3470-130
Page 16 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: 4928 Old Pineville Rd., Charlotte
Date Received: 10/19/2021
Work Order: 21J1249Sample Description/Location:
Field Sample #: SS-1008-H
Sample ID: 21J1249-07
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.8
Sampled: 10/18/2021 11:01
Canister ID: 2661
Flow Controller ID: 4330
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
Sample Flags: RL-11
MDL MDL
Acetone 66 20 10/25/21 14:25 TPH160 10481229
Benzene ND 0.50 10/25/21 14:25 TPHND101.60.12 0.38
Benzyl chloride ND 0.50 10/25/21 14:25 TPHND102.60.22 1.2
Bromodichloromethane ND 0.50 10/25/21 14:25 TPHND103.40.18 1.2
Bromoform ND 0.50 10/25/21 14:25 TPHND105.20.18 1.9
Bromomethane ND 0.50 10/25/21 14:25 TPHND101.90.41 1.6
1,3-Butadiene ND 0.50 10/25/21 14:25 TPHND101.10.35 0.77
2-Butanone (MEK)310 20 10/25/21 14:25 TPH920 10591.7 4.9
Carbon Disulfide ND 5.0 10/25/21 14:25 TPHND10161.3 4.0
Carbon Tetrachloride ND 0.50 10/25/21 14:25 TPHND103.10.15 0.95
Chlorobenzene ND 0.50 10/25/21 14:25 TPHND102.30.15 0.69
Chloroethane ND 0.50 10/25/21 14:25 TPHND101.30.36 0.96
Chloroform ND 0.50 10/25/21 14:25 TPHND102.40.12 0.59
Chloromethane 0.36 1.0 10/25/21 14:25 TPHJ0.74 102.10.20 0.42
Cyclohexane 1.1 0.50 10/25/21 14:25 TPH3.6 101.70.33 1.1
Dibromochloromethane ND 0.50 10/25/21 14:25 TPHND104.30.17 1.4
1,2-Dibromoethane (EDB)ND 0.50 10/25/21 14:25 TPHND103.80.14 1.1
1,2-Dichlorobenzene ND 0.50 10/25/21 14:25 TPHND103.00.18 1.1
1,3-Dichlorobenzene ND 0.50 10/25/21 14:25 TPHND103.00.12 0.73
1,4-Dichlorobenzene ND 0.50 10/25/21 14:25 TPHND103.00.20 1.2
Dichlorodifluoromethane (Freon 12)0.43 0.50 10/25/21 14:25 TPHJ2.1 102.50.15 0.76
1,1-Dichloroethane ND 0.50 10/25/21 14:25 TPHND102.00.17 0.68
1,2-Dichloroethane ND 0.50 10/25/21 14:25 TPHND102.00.18 0.74
1,1-Dichloroethylene ND 0.50 10/25/21 14:25 TPHND102.00.20 0.78
cis-1,2-Dichloroethylene ND 0.50 10/25/21 14:25 TPHND102.00.17 0.67
trans-1,2-Dichloroethylene ND 0.50 10/25/21 14:25 TPHND102.00.18 0.69
1,2-Dichloropropane ND 0.50 10/25/21 14:25 TPHND102.30.18 0.84
cis-1,3-Dichloropropene ND 0.50 10/25/21 14:25 TPHND102.30.23 1.1
trans-1,3-Dichloropropene ND 0.50 10/25/21 14:25 TPHND102.30.15 0.70
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.50 10/25/21 14:25 TPHND103.50.17 1.2
1,4-Dioxane ND 5.0 10/25/21 14:25 TPHND10180.34 1.2
Ethanol 12 20 10/25/21 14:25 TPHJ23 10386.1 11
Ethyl Acetate ND 5.0 10/25/21 14:25 TPHL-03 ND 10183.0 11
Ethylbenzene ND 0.50 10/25/21 14:25 TPHND102.20.13 0.56
4-Ethyltoluene ND 0.50 10/25/21 14:25 TPHND102.50.16 0.76
Heptane ND 0.50 10/25/21 14:25 TPHND102.00.21 0.84
Hexachlorobutadiene ND 0.50 10/25/21 14:25 TPHND105.30.28 3.0
Hexane ND 20 10/25/21 14:25 TPHND10701.6 5.8
2-Hexanone (MBK)ND 0.50 10/25/21 14:25 TPHND102.00.25 1.0
Isopropanol ND 20 10/25/21 14:25 TPHND10494.6 11
Methyl tert-Butyl Ether (MTBE)ND 0.50 10/25/21 14:25 TPHND101.80.20 0.72
Methylene Chloride ND 5.0 10/25/21 14:25 TPHND10171.1 4.0
4-Methyl-2-pentanone (MIBK)ND 0.50 10/25/21 14:25 TPHND102.00.26 1.1
Naphthalene ND 0.50 10/25/21 14:25 TPHND102.60.32 1.7
Propene ND 20 10/25/21 14:25 TPHND10341.7 2.9
Styrene ND 0.50 10/25/21 14:25 TPHND102.10.16 0.67
1,1,2,2-Tetrachloroethane ND 0.50 10/25/21 14:25 TPHND103.40.15 1.1
Page 17 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: 4928 Old Pineville Rd., Charlotte
Date Received: 10/19/2021
Work Order: 21J1249Sample Description/Location:
Field Sample #: SS-1008-H
Sample ID: 21J1249-07
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.8
Sampled: 10/18/2021 11:01
Canister ID: 2661
Flow Controller ID: 4330
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
Sample Flags: RL-11
MDL MDL
Tetrachloroethylene ND 0.50 10/25/21 14:25 TPHND103.40.15 1.0
Tetrahydrofuran 70 5.0 10/25/21 14:25 TPH210 10151.2 3.6
Toluene ND 0.50 10/25/21 14:25 TPHND101.90.21 0.79
1,2,4-Trichlorobenzene ND 0.50 10/25/21 14:25 TPHND103.70.35 2.6
1,1,1-Trichloroethane ND 0.50 10/25/21 14:25 TPHND102.70.23 1.3
1,1,2-Trichloroethane ND 0.50 10/25/21 14:25 TPHND102.70.20 1.1
Trichloroethylene ND 0.50 10/25/21 14:25 TPHND102.70.18 0.99
Trichlorofluoromethane (Freon 11)0.23 2.0 10/25/21 14:25 TPHJ1.3 10110.20 1.1
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)ND 2.0 10/25/21 14:25 TPHND10150.18 1.4
1,2,4-Trimethylbenzene 0.26 0.50 10/25/21 14:25 TPHJ1.3 102.50.15 0.73
1,3,5-Trimethylbenzene ND 0.50 10/25/21 14:25 TPHND102.50.14 0.67
Vinyl Acetate ND 10 10/25/21 14:25 TPHND10350.94 3.3
Vinyl Chloride ND 0.50 10/25/21 14:25 TPHND101.30.20 0.51
m&p-Xylene ND 1.0 10/25/21 14:25 TPHND104.30.28 1.2
o-Xylene ND 0.50 10/25/21 14:25 TPHND102.20.13 0.58
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)104 10/25/21 14:2570-130
Page 18 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Sample Extraction Data
Prep Method: TO-15 Prep-EPA TO-15
Lab Number [Field ID]Batch Date
Pressure
Dilution
Pre
Dilution
Pre-Dil
Initial
mL
Pre-Dil
Final
mL
Default
Injection
mL
Actual
Injection
mL
21J1249-01 [SS-1004-A]B293163 1.5 1 N/A 1000 400 60 10/22/21
21J1249-02 [SS-1004-D]B293163 1.5 1 N/A 1000 400 60 10/22/21
21J1249-03 [SS-1004-H]B293163 1.5 1 N/A 1000 400 150 10/22/21
21J1249-04 [SS-1004-DUP]B293163 1.5 1 N/A 1000 400 150 10/22/21
21J1249-05 [SS-1008-A]B293163 1.5 1 N/A 1000 400 60 10/22/21
21J1249-06 [SS-1008-D]B293163 1.5 1 N/A 1000 400 150 10/22/21
Prep Method: TO-15 Prep-EPA TO-15
Lab Number [Field ID]Batch Date
Pressure
Dilution
Pre
Dilution
Pre-Dil
Initial
mL
Pre-Dil
Final
mL
Default
Injection
mL
Actual
Injection
mL
21J1249-05RE1 [SS-1008-A]B293205 1.5 1 N/A 1000 400 30 10/25/21
21J1249-07 [SS-1008-H]B293205 1.5 1 N/A 1000 400 60 10/25/21
Page 19 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ug/m3 Spike Level
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Flag/Qual Analyte
Air Toxics by EPA Compendium Methods - Quality Control
QUALITY CONTROL
RL
ppbv
Results RL Results ppbv
Batch B293163 - TO-15 Prep
Blank (B293163-BLK1)Prepared & Analyzed: 10/22/21
1.4NDAcetone
0.035NDBenzene
0.035NDBenzyl chloride
0.035NDBromodichloromethane
0.035NDBromoform
0.035NDBromomethane
0.035ND1,3-Butadiene
1.4ND2-Butanone (MEK)
0.35NDCarbon Disulfide
0.035NDCarbon Tetrachloride
0.035NDChlorobenzene
0.035NDChloroethane
0.035NDChloroform
0.070NDChloromethane
0.035NDCyclohexane
0.035NDDibromochloromethane
0.035ND1,2-Dibromoethane (EDB)
0.035ND1,2-Dichlorobenzene
0.035ND1,3-Dichlorobenzene
0.035ND1,4-Dichlorobenzene
0.035NDDichlorodifluoromethane (Freon 12)
0.035ND1,1-Dichloroethane
0.035ND1,2-Dichloroethane
0.035ND1,1-Dichloroethylene
0.035NDcis-1,2-Dichloroethylene
0.035NDtrans-1,2-Dichloroethylene
0.035ND1,2-Dichloropropane
0.035NDcis-1,3-Dichloropropene
0.035NDtrans-1,3-Dichloropropene
0.035ND1,2-Dichloro-1,1,2,2-tetrafluoroethane
(Freon 114)
0.35ND1,4-Dioxane
1.4NDEthanol
0.35NDEthyl Acetate
0.035NDEthylbenzene
0.035ND4-Ethyltoluene
0.035NDHeptane
0.035NDHexachlorobutadiene
1.4NDHexane
0.035ND2-Hexanone (MBK)
1.4NDIsopropanol
0.035NDMethyl tert-Butyl Ether (MTBE)
0.35NDMethylene Chloride
0.035ND4-Methyl-2-pentanone (MIBK)
0.035NDNaphthalene
1.4NDPropene
0.035NDStyrene
Page 20 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ug/m3 Spike Level
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Flag/Qual Analyte
Air Toxics by EPA Compendium Methods - Quality Control
QUALITY CONTROL
RL
ppbv
Results RL Results ppbv
Batch B293163 - TO-15 Prep
Blank (B293163-BLK1)Prepared & Analyzed: 10/22/21
0.035ND1,1,2,2-Tetrachloroethane
0.035NDTetrachloroethylene
0.35NDTetrahydrofuran
0.035NDToluene
0.035ND1,2,4-Trichlorobenzene
0.035ND1,1,1-Trichloroethane
0.035ND1,1,2-Trichloroethane
0.035NDTrichloroethylene
0.14NDTrichlorofluoromethane (Freon 11)
0.14ND1,1,2-Trichloro-1,2,2-trifluoroethane (Freon
113)
0.035ND1,2,4-Trimethylbenzene
0.035ND1,3,5-Trimethylbenzene
0.70NDVinyl Acetate
0.035NDVinyl Chloride
0.070NDm&p-Xylene
0.035NDo-Xylene
8.00 70-130Surrogate: 4-Bromofluorobenzene (1)1028.14
LCS (B293163-BS1)Prepared & Analyzed: 10/22/21
5.00 70-13088.44.42Acetone
5.00 70-13090.64.53Benzene
5.00 70-1301075.36Benzyl chloride
5.00 70-13088.74.43Bromodichloromethane
5.00 70-1301105.50Bromoform
5.00 70-1301015.06Bromomethane
5.00 70-13084.54.221,3-Butadiene
5.00 70-1301025.082-Butanone (MEK)
5.00 70-13093.94.69Carbon Disulfide
5.00 70-13095.14.76Carbon Tetrachloride
5.00 70-13092.14.61Chlorobenzene
5.00 70-13093.04.65Chloroethane
5.00 70-13095.44.77Chloroform
5.00 70-13085.54.27Chloromethane
5.00 70-13084.54.22Cyclohexane
5.00 70-13099.64.98Dibromochloromethane
5.00 70-13094.84.741,2-Dibromoethane (EDB)
5.00 70-1301055.271,2-Dichlorobenzene
5.00 70-1301075.351,3-Dichlorobenzene
5.00 70-1301055.251,4-Dichlorobenzene
5.00 70-13096.04.80Dichlorodifluoromethane (Freon 12)
5.00 70-13094.84.741,1-Dichloroethane
5.00 70-13092.24.611,2-Dichloroethane
5.00 70-13095.14.751,1-Dichloroethylene
5.00 70-13095.04.75cis-1,2-Dichloroethylene
5.00 70-13094.64.73trans-1,2-Dichloroethylene
5.00 70-13088.74.441,2-Dichloropropane
Page 21 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ug/m3 Spike Level
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Flag/Qual Analyte
Air Toxics by EPA Compendium Methods - Quality Control
QUALITY CONTROL
RL
ppbv
Results RL Results ppbv
Batch B293163 - TO-15 Prep
LCS (B293163-BS1)Prepared & Analyzed: 10/22/21
5.00 70-13093.04.65cis-1,3-Dichloropropene
5.00 70-13095.84.79trans-1,3-Dichloropropene
5.00 70-13092.24.611,2-Dichloro-1,1,2,2-tetrafluoroethane
(Freon 114)
5.00 70-13098.54.921,4-Dioxane
5.00 L-05, V-3570-1301316.55Ethanol *
5.00 70-13073.03.65Ethyl Acetate
5.00 70-13095.14.75Ethylbenzene
5.00 70-1301065.284-Ethyltoluene
5.00 70-13085.64.28Heptane
5.00 70-1301205.99Hexachlorobutadiene
5.00 70-13099.94.99Hexane
5.00 70-13091.04.552-Hexanone (MBK)
5.00 70-13081.94.10Isopropanol
5.00 70-13095.44.77Methyl tert-Butyl Ether (MTBE)
5.00 70-13091.84.59Methylene Chloride
5.00 70-13092.34.614-Methyl-2-pentanone (MIBK)
5.00 L-0570-1301316.56Naphthalene *
5.00 70-13094.44.72Propene
5.00 70-1301035.14Styrene
5.00 70-13091.24.561,1,2,2-Tetrachloroethane
5.00 70-1301015.07Tetrachloroethylene
5.00 70-13099.04.95Tetrahydrofuran
5.00 70-13095.14.75Toluene
5.00 70-1301296.461,2,4-Trichlorobenzene
5.00 70-13087.74.391,1,1-Trichloroethane
5.00 70-13092.94.651,1,2-Trichloroethane
5.00 70-13087.14.36Trichloroethylene
5.00 70-13095.84.79Trichlorofluoromethane (Freon 11)
5.00 70-1301015.061,1,2-Trichloro-1,2,2-trifluoroethane (Freon
113)
5.00 70-1301035.141,2,4-Trimethylbenzene
5.00 70-1301045.191,3,5-Trimethylbenzene
5.00 L-01, V-3670-1301487.42Vinyl Acetate *
5.00 70-13087.84.39Vinyl Chloride
10.0 70-13098.99.89m&p-Xylene
5.00 70-13098.24.91o-Xylene
8.00 70-130Surrogate: 4-Bromofluorobenzene (1)1058.41
Page 22 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ug/m3 Spike Level
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Flag/Qual Analyte
Air Toxics by EPA Compendium Methods - Quality Control
QUALITY CONTROL
RL
ppbv
Results RL Results ppbv
Batch B293205 - TO-15 Prep
Blank (B293205-BLK1)Prepared & Analyzed: 10/25/21
1.4NDAcetone
0.035NDBenzene
0.035NDBenzyl chloride
0.035NDBromodichloromethane
0.035NDBromoform
0.035NDBromomethane
0.035ND1,3-Butadiene
1.4ND2-Butanone (MEK)
0.35NDCarbon Disulfide
0.035NDCarbon Tetrachloride
0.035NDChlorobenzene
0.035NDChloroethane
0.035NDChloroform
0.070NDChloromethane
0.035NDCyclohexane
0.035NDDibromochloromethane
0.035ND1,2-Dibromoethane (EDB)
0.035ND1,2-Dichlorobenzene
0.035ND1,3-Dichlorobenzene
0.035ND1,4-Dichlorobenzene
0.035NDDichlorodifluoromethane (Freon 12)
0.035ND1,1-Dichloroethane
0.035ND1,2-Dichloroethane
0.035ND1,1-Dichloroethylene
0.035NDcis-1,2-Dichloroethylene
0.035NDtrans-1,2-Dichloroethylene
0.035ND1,2-Dichloropropane
0.035NDcis-1,3-Dichloropropene
0.035NDtrans-1,3-Dichloropropene
0.035ND1,2-Dichloro-1,1,2,2-tetrafluoroethane
(Freon 114)
0.35ND1,4-Dioxane
1.4NDEthanol
0.35 L-03NDEthyl Acetate
0.035NDEthylbenzene
0.035ND4-Ethyltoluene
0.035NDHeptane
0.035NDHexachlorobutadiene
1.4NDHexane
0.035ND2-Hexanone (MBK)
1.4NDIsopropanol
0.035NDMethyl tert-Butyl Ether (MTBE)
0.35NDMethylene Chloride
0.035ND4-Methyl-2-pentanone (MIBK)
0.035NDNaphthalene
1.4NDPropene
0.035NDStyrene
Page 23 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ug/m3 Spike Level
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Flag/Qual Analyte
Air Toxics by EPA Compendium Methods - Quality Control
QUALITY CONTROL
RL
ppbv
Results RL Results ppbv
Batch B293205 - TO-15 Prep
Blank (B293205-BLK1)Prepared & Analyzed: 10/25/21
0.035ND1,1,2,2-Tetrachloroethane
0.035NDTetrachloroethylene
0.35NDTetrahydrofuran
0.035NDToluene
0.035ND1,2,4-Trichlorobenzene
0.035ND1,1,1-Trichloroethane
0.035ND1,1,2-Trichloroethane
0.035NDTrichloroethylene
0.14NDTrichlorofluoromethane (Freon 11)
0.14ND1,1,2-Trichloro-1,2,2-trifluoroethane (Freon
113)
0.035ND1,2,4-Trimethylbenzene
0.035ND1,3,5-Trimethylbenzene
0.70NDVinyl Acetate
0.035NDVinyl Chloride
0.070NDm&p-Xylene
0.035NDo-Xylene
8.00 70-130Surrogate: 4-Bromofluorobenzene (1)1028.15
LCS (B293205-BS1)Prepared & Analyzed: 10/25/21
5.00 70-13087.34.36Acetone
5.00 70-13081.44.07Benzene
5.00 70-13099.74.98Benzyl chloride
5.00 70-13079.63.98Bromodichloromethane
5.00 70-1301045.22Bromoform
5.00 70-13093.04.65Bromomethane
5.00 70-13078.03.901,3-Butadiene
5.00 70-13093.14.662-Butanone (MEK)
5.00 70-13089.24.46Carbon Disulfide
5.00 70-13087.74.38Carbon Tetrachloride
5.00 70-13086.04.30Chlorobenzene
5.00 70-13086.94.35Chloroethane
5.00 70-13089.44.47Chloroform
5.00 70-13079.53.98Chloromethane
5.00 70-13075.43.77Cyclohexane
5.00 70-13093.14.66Dibromochloromethane
5.00 70-13088.14.401,2-Dibromoethane (EDB)
5.00 70-1301025.101,2-Dichlorobenzene
5.00 70-1301035.131,3-Dichlorobenzene
5.00 70-1301015.041,4-Dichlorobenzene
5.00 70-13089.94.50Dichlorodifluoromethane (Freon 12)
5.00 70-13087.94.391,1-Dichloroethane
5.00 70-13083.64.181,2-Dichloroethane
5.00 70-13087.94.401,1-Dichloroethylene
5.00 70-13086.54.32cis-1,2-Dichloroethylene
5.00 70-13086.54.32trans-1,2-Dichloroethylene
5.00 70-13079.53.981,2-Dichloropropane
Page 24 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ug/m3 Spike Level
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Flag/Qual Analyte
Air Toxics by EPA Compendium Methods - Quality Control
QUALITY CONTROL
RL
ppbv
Results RL Results ppbv
Batch B293205 - TO-15 Prep
LCS (B293205-BS1)Prepared & Analyzed: 10/25/21
5.00 70-13082.24.11cis-1,3-Dichloropropene
5.00 70-13084.94.24trans-1,3-Dichloropropene
5.00 70-13085.34.271,2-Dichloro-1,1,2,2-tetrafluoroethane
(Freon 114)
5.00 70-13088.84.441,4-Dioxane
5.00 70-1301246.20Ethanol
5.00 L-0370-13066.73.33Ethyl Acetate *
5.00 70-13087.44.37Ethylbenzene
5.00 70-13097.44.874-Ethyltoluene
5.00 70-13076.73.83Heptane
5.00 70-1301195.93Hexachlorobutadiene
5.00 70-13091.04.55Hexane
5.00 70-13083.94.192-Hexanone (MBK)
5.00 70-13081.24.06Isopropanol
5.00 70-13087.84.39Methyl tert-Butyl Ether (MTBE)
5.00 70-13085.74.29Methylene Chloride
5.00 70-13081.54.074-Methyl-2-pentanone (MIBK)
5.00 70-1301276.34Naphthalene
5.00 70-13086.44.32Propene
5.00 70-13095.44.77Styrene
5.00 70-13083.34.171,1,2,2-Tetrachloroethane
5.00 70-13095.54.77Tetrachloroethylene
5.00 70-13089.94.49Tetrahydrofuran
5.00 70-13087.34.36Toluene
5.00 70-1301266.321,2,4-Trichlorobenzene
5.00 70-13079.73.991,1,1-Trichloroethane
5.00 70-13086.24.311,1,2-Trichloroethane
5.00 70-13079.13.96Trichloroethylene
5.00 70-13091.94.60Trichlorofluoromethane (Freon 11)
5.00 70-13095.74.791,1,2-Trichloro-1,2,2-trifluoroethane (Freon
113)
5.00 70-13095.74.791,2,4-Trimethylbenzene
5.00 70-13096.04.801,3,5-Trimethylbenzene
5.00 L-01, V-3670-1301336.63Vinyl Acetate *
5.00 70-13081.74.08Vinyl Chloride
10.0 70-13090.29.02m&p-Xylene
5.00 70-13089.74.48o-Xylene
8.00 70-130Surrogate: 4-Bromofluorobenzene (1)1058.42
Page 25 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Note: Blank Subtraction is not performed unless otherwise noted
*QC result is outside of established limits.
Wide recovery limits established for difficult compound.
Wide RPD limits established for difficult compound.
#Data exceeded client recommended or regulatory level
RL Reporting Limit
MDL Method Detection Limit
RPD Relative Percent Difference
LCS Laboratory Control Sample
Laboratory Control SampleLCS Dup Duplicate Laboratory Control Sample
MS Matrix Spike Sample
MS Dup Duplicate Matrix Spike Sample
REC Recovery
QC Quality Control
ppbv Parts per billion volume
EPA United States Environmental Protection Agency
Percent Recovery% REC
ND Not Detected
Percent recoveries and relative percent differences (RPDs) are determined by the software using values in the
calculation which have not been rounded.
Not ApplicableN/A
DL Detection Limit
Not CalculatedNC
LFB/LCS Lab Fortified Blank/Lab Control Sample
ORP Oxidation-Reduction Potential
Not dry weight correctedwet
Percent weight% wt
KilogramKg
Gramg
Milligrammg
Microgramg
Nanogramng
LiterL
MillilitermL
Microliter L
Cubic Meterm3
Extractable Petroleum HydrocarbonsEPH
Volatile Petroleum HydrocarbonsVPH
Air Petroleum HydrocarbonsAPH
Flame Ionization DetectorFID
Photo Ionization DetectorPID
FLAG/QUALIFIER SUMMARY
Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated
concentration (CLP J-Flag).
J
Laboratory fortified blank/laboratory control sample recovery outside of control limits. Data validation is not
affected since all results are "not detected" for all samples in this batch for this compound and bias is on the high
side.
L-01
Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this
compound is likely to be biased on the low side.
L-03
Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this
compound is likely to be biased on the high side.
L-05
Elevated reporting limit due to high concentration of target compounds.RL-11
Initial calibration verification (ICV) did not meet method specifications and was biased on the high side for this
compound. Reported result is estimated.
V-35
Initial calibration verification (ICV) did not meet method specifications and was biased on the high side. Data
validation is not affected since sample result was "not detected" for this compound.
V-36
Page 26 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYST
Thomas P. HniteckiTPH
Rebecca FaustRLF
PDF Management StationSTATION
Kerry K. McGeeKKM
Brittany R. FiskBRF
Page 27 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
INTERNAL STANDARD AREA AND RT SUMMARY
EPA TO-15
RTResponseInternal Standard Area %RT DiffResponse
Reference
RT
Reference Area %
Limits
RT Diff
Limit Q
Initial Cal Check (S064333-ICV1 )Lab File ID: G21A287016.D Analyzed: 10/15/21 03:38
Bromochloromethane (1)1623708 8.503 1575464 8.497 60 - 140103 0.0060 +/-0.50
1,4-Difluorobenzene (1)3996409 10.277 3793463 10.277 60 - 140105 0.0000 +/-0.50
Chlorobenzene-d5 (1)3803882 14.648 3670433 14.648 60 - 140104 0.0000 +/-0.50
INTERNAL STANDARD AREA AND RT SUMMARY
EPA TO-15
RTResponseInternal Standard Area %RT DiffResponse
Reference
RT
Reference Area %
Limits
RT Diff
Limit Q
Calibration Check (S064612-CCV1 )Lab File ID: G21A295005.D Analyzed: 10/22/21 10:30
Bromochloromethane (1)1375013 8.497 1575464 8.497 60 - 14087 0.0000 +/-0.50
1,4-Difluorobenzene (1)3643811 10.271 3793463 10.277 60 - 14096 -0.0060 +/-0.50
Chlorobenzene-d5 (1)3502291 14.648 3670433 14.648 60 - 14095 0.0000 +/-0.50
LCS (B293163-BS1 )Lab File ID: G21A295006.D Analyzed: 10/22/21 11:10
Bromochloromethane (1)1392285 8.497 1375013 8.497 60 - 140101 0.0000 +/-0.50
1,4-Difluorobenzene (1)3628808 10.271 3643811 10.271 60 - 140100 0.0000 +/-0.50
Chlorobenzene-d5 (1)3503058 14.642 3502291 14.648 60 - 140100 -0.0060 +/-0.50
Blank (B293163-BLK1 )Lab File ID: G21A295009.D Analyzed: 10/22/21 13:20
Bromochloromethane (1)1250870 8.503 1375013 8.497 60 - 14091 0.0060 +/-0.50
1,4-Difluorobenzene (1)3344801 10.277 3643811 10.271 60 - 14092 0.0060 +/-0.50
Chlorobenzene-d5 (1)3176466 14.648 3502291 14.648 60 - 14091 0.0000 +/-0.50
SS-1004-A (21J1249-01 )Lab File ID: G21A295026.D Analyzed: 10/23/21 01:09
Bromochloromethane (1)1269884 8.503 1375013 8.497 60 - 14092 0.0060 +/-0.50
1,4-Difluorobenzene (1)3418529 10.277 3643811 10.271 60 - 14094 0.0060 +/-0.50
Chlorobenzene-d5 (1)3294321 14.648 3502291 14.648 60 - 14094 0.0000 +/-0.50
SS-1004-D (21J1249-02 )Lab File ID: G21A295027.D Analyzed: 10/23/21 01:49
Bromochloromethane (1)1247905 8.503 1375013 8.497 60 - 14091 0.0060 +/-0.50
1,4-Difluorobenzene (1)3373749 10.277 3643811 10.271 60 - 14093 0.0060 +/-0.50
Chlorobenzene-d5 (1)3219739 14.648 3502291 14.648 60 - 14092 0.0000 +/-0.50
SS-1004-H (21J1249-03 )Lab File ID: G21A295028.D Analyzed: 10/23/21 02:31
Bromochloromethane (1)1240692 8.503 1375013 8.497 60 - 14090 0.0060 +/-0.50
1,4-Difluorobenzene (1)3353538 10.277 3643811 10.271 60 - 14092 0.0060 +/-0.50
Chlorobenzene-d5 (1)3239909 14.648 3502291 14.648 60 - 14093 0.0000 +/-0.50
SS-1004-DUP (21J1249-04 )Lab File ID: G21A295029.D Analyzed: 10/23/21 03:12
Bromochloromethane (1)1231712 8.503 1375013 8.497 60 - 14090 0.0060 +/-0.50
1,4-Difluorobenzene (1)3355433 10.277 3643811 10.271 60 - 14092 0.0060 +/-0.50
Chlorobenzene-d5 (1)3217730 14.648 3502291 14.648 60 - 14092 0.0000 +/-0.50
Page 28 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
INTERNAL STANDARD AREA AND RT SUMMARY
EPA TO-15
RTResponseInternal Standard Area %RT DiffResponse
Reference
RT
Reference Area %
Limits
RT Diff
Limit Q
SS-1008-A (21J1249-05 )Lab File ID: G21A295030.D Analyzed: 10/23/21 03:53
Bromochloromethane (1)1224969 8.503 1375013 8.497 60 - 14089 0.0060 +/-0.50
1,4-Difluorobenzene (1)3325219 10.277 3643811 10.271 60 - 14091 0.0060 +/-0.50
Chlorobenzene-d5 (1)3195187 14.648 3502291 14.648 60 - 14091 0.0000 +/-0.50
SS-1008-D (21J1249-06 )Lab File ID: G21A295031.D Analyzed: 10/23/21 04:34
Bromochloromethane (1)1199198 8.503 1375013 8.497 60 - 14087 0.0060 +/-0.50
1,4-Difluorobenzene (1)3296936 10.277 3643811 10.271 60 - 14090 0.0060 +/-0.50
Chlorobenzene-d5 (1)3146713 14.648 3502291 14.648 60 - 14090 0.0000 +/-0.50
INTERNAL STANDARD AREA AND RT SUMMARY
EPA TO-15
RTResponseInternal Standard Area %RT DiffResponse
Reference
RT
Reference Area %
Limits
RT Diff
Limit Q
Calibration Check (S064623-CCV1 )Lab File ID: G21A298004.D Analyzed: 10/25/21 09:41
Bromochloromethane (1)1461923 8.503 1575464 8.497 60 - 14093 0.0060 +/-0.50
1,4-Difluorobenzene (1)3919265 10.277 3793463 10.277 60 - 140103 0.0000 +/-0.50
Chlorobenzene-d5 (1)3618423 14.648 3670433 14.648 60 - 14099 0.0000 +/-0.50
LCS (B293205-BS1 )Lab File ID: G21A298005.D Analyzed: 10/25/21 10:21
Bromochloromethane (1)1485632 8.503 1461923 8.503 60 - 140102 0.0000 +/-0.50
1,4-Difluorobenzene (1)3977546 10.277 3919265 10.277 60 - 140101 0.0000 +/-0.50
Chlorobenzene-d5 (1)3801985 14.648 3618423 14.648 60 - 140105 0.0000 +/-0.50
Blank (B293205-BLK1 )Lab File ID: G21A298008.D Analyzed: 10/25/21 12:28
Bromochloromethane (1)1394398 8.509 1461923 8.503 60 - 14095 0.0060 +/-0.50
1,4-Difluorobenzene (1)3787107 10.277 3919265 10.277 60 - 14097 0.0000 +/-0.50
Chlorobenzene-d5 (1)3574552 14.648 3618423 14.648 60 - 14099 0.0000 +/-0.50
SS-1008-A (21J1249-05RE1 )Lab File ID: G21A298010.D Analyzed: 10/25/21 13:46
Bromochloromethane (1)1396439 8.503 1461923 8.503 60 - 14096 0.0000 +/-0.50
1,4-Difluorobenzene (1)3733101 10.277 3919265 10.277 60 - 14095 0.0000 +/-0.50
Chlorobenzene-d5 (1)3517965 14.648 3618423 14.648 60 - 14097 0.0000 +/-0.50
SS-1008-H (21J1249-07 )Lab File ID: G21A298011.D Analyzed: 10/25/21 14:25
Bromochloromethane (1)1386127 8.509 1461923 8.503 60 - 14095 0.0060 +/-0.50
1,4-Difluorobenzene (1)3746555 10.277 3919265 10.277 60 - 14096 0.0000 +/-0.50
Chlorobenzene-d5 (1)3577898 14.648 3618423 14.648 60 - 14099 0.0000 +/-0.50
Page 29 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S064612-CCV1
COMPOUND TYPE CCV MIN (#)CCV LIMIT (#)CCV ICAL
CONC. (ppbv)% DIFF / DRIFTRESPONSE FACTOR
STD
0.9819346A -15.0 304.25 1.1557725.00Acetone
0.7321095A -14.9 304.26 0.85986185.00Benzene
0.7500489A -1.3 304.93 0.76020155.00Benzyl chloride
0.5266095A -16.8 304.16 0.63277735.00Bromodichloromethane
0.4577269A 2.4 305.12 0.44679935.00Bromoform
0.5691129A -5.0 304.75 0.59879025.00Bromomethane
0.494827A -14.5 304.27 0.578835.001,3-Butadiene
1.306135A -5.6 304.72 1.3829055.002-Butanone (MEK)
1.829774A -7.9 304.61 1.9861535.00Carbon Disulfide
0.4540951A -10.8 304.46 0.50925985.00Carbon Tetrachloride
0.6843475A -11.9 304.40 0.77715095.00Chlorobenzene
0.31738A -13.7 304.31 0.36791075.00Chloroethane
1.31243A -8.2 304.59 1.4294775.00Chloroform
0.5858167A -16.8 304.16 0.70370455.00Chloromethane
0.3029716A -20.9 303.96 0.38284475.00Cyclohexane
0.5309389A -5.2 304.74 0.55977685.00Dibromochloromethane
0.4682284A -9.8 304.51 0.51888255.001,2-Dibromoethane (EDB)
0.5013728A -3.4 304.83 0.5191665.001,2-Dichlorobenzene
0.5752568A -1.2 304.94 0.58242395.001,3-Dichlorobenzene
0.5649449A -2.6 304.87 0.57988195.001,4-Dichlorobenzene
1.385625A -7.3 304.64 1.4943185.00Dichlorodifluoromethane (Freon 12)
1.155123A -10.7 304.46 1.2934655.001,1-Dichloroethane
0.8021696A -12.5 304.37 0.91700995.001,2-Dichloroethane
0.984064A -10.8 304.46 1.1030645.001,1-Dichloroethylene
0.841691A -9.3 304.53 0.92816885.00cis-1,2-Dichloroethylene
0.8842424A -9.0 304.55 0.97214285.00trans-1,2-Dichloroethylene
0.2809011A -18.4 304.08 0.34441595.001,2-Dichloropropane
0.4065669A -14.0 304.30 0.47257125.00cis-1,3-Dichloropropene
0.3539161A -14.6 304.27 0.41446895.00trans-1,3-Dichloropropene
1.569092A -6.0 304.70 1.669615.001,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
0.1339161A -13.0 304.35 0.15398975.001,4-Dioxane
0.1303633A -10.9 304.45 0.14638385.00Ethanol
0.2758455A -8.8 304.56 0.30257245.00Ethyl Acetate
1.131826A -8.2 304.59 1.2335645.00Ethylbenzene
1.13646A -2.9 304.86 1.1700665.004-Ethyltoluene
0.2376202A -18.1 304.10 0.2901335.00Heptane
0.2636628A 8.7 305.43 0.24259655.00Hexachlorobutadiene
0.7722993A -5.2 304.74 0.90978295.00Hexane
Page 30 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S064612-CCV1
COMPOUND TYPE CCV MIN (#)CCV LIMIT (#)CCV ICAL
CONC. (ppbv)% DIFF / DRIFTRESPONSE FACTOR
STD
0.5512383A -14.4 304.28 0.64365695.002-Hexanone (MBK)
1.097225A -9.1 304.55 1.2069115.00Isopropanol
1.632096A -7.6 304.62 1.7653865.00Methyl tert-Butyl Ether (MTBE)
0.7450484A -12.7 304.36 0.85391515.00Methylene Chloride
0.6154572A -13.7 304.32 0.71308655.004-Methyl-2-pentanone (MIBK)
0.6126563A 20.1 306.00 0.51014915.00Naphthalene
0.536344A -7.5 304.63 0.57972225.00Propene
0.6532264A -3.1 304.85 0.67396885.00Styrene
0.6422402A -14.1 304.30 0.74771375.001,1,2,2-Tetrachloroethane
0.3921556A -3.7 304.82 0.40707565.00Tetrachloroethylene
0.2795819A -4.4 304.78 0.29233345.00Tetrahydrofuran
0.9007142A -9.1 304.54 0.99106715.00Toluene
0.2708467A 14.4 305.72 0.23665715.001,2,4-Trichlorobenzene
0.458858A -15.0 304.25 0.54001585.001,1,1-Trichloroethane
0.3048501A -13.5 304.32 0.35253685.001,1,2-Trichloroethane
0.3147136A -18.8 304.06 0.38741055.00Trichloroethylene
1.444459A -7.8 304.61 1.5659075.00Trichlorofluoromethane (Freon 11)
1.208156A -5.8 304.71 1.282065.001,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.8763018A -4.5 304.77 0.91802015.001,2,4-Trimethylbenzene
0.9197842A -3.1 304.84 0.94941995.001,3,5-Trimethylbenzene
0.9760338A -13.0 304.35 1.1217485.00Vinyl Acetate
0.6422805A -16.5 304.18 0.76911755.00Vinyl Chloride
0.8590244A -7.0 309.30 0.923668110.0m&p-Xylene
0.8745311A -7.8 304.61 0.94887845.00o-Xylene
* Values outside of QC limits
# Column to be used to flag Response Factor and %Diff/Drift values with an asterisk
Page 31 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S064623-CCV1
COMPOUND TYPE CCV MIN (#)CCV LIMIT (#)CCV ICAL
CONC. (ppbv)% DIFF / DRIFTRESPONSE FACTOR
STD
0.945281A -18.2 304.09 1.1557725.00Acetone
0.655714A -23.7 303.81 0.85986185.00Benzene
0.7121591A -6.3 304.68 0.76020155.00Benzyl chloride
0.4740387A -25.1 303.75 0.63277735.00Bromodichloromethane
0.4446352A -0.5 304.98 0.44679935.00Bromoform
0.5238262A -12.5 304.37 0.59879025.00Bromomethane
0.4438516A -23.3 303.83 0.578835.001,3-Butadiene
1.16887A -15.5 304.23 1.3829055.002-Butanone (MEK)
1.666603A -16.1 304.20 1.9861535.00Carbon Disulfide
0.4173987A -18.0 304.10 0.50925985.00Carbon Tetrachloride
0.6525353A -16.0 304.20 0.77715095.00Chlorobenzene
0.2906167A -21.0 303.95 0.36791075.00Chloroethane
1.194959A -16.4 304.18 1.4294775.00Chloroform
0.5328631A -24.3 303.79 0.70370455.00Chloromethane
0.2687381A -29.8 303.51 0.38284475.00Cyclohexane
0.5088772A -9.1 304.54 0.55977685.00Dibromochloromethane
0.441356A -14.9 304.25 0.51888255.001,2-Dibromoethane (EDB)
0.4885841A -5.9 304.70 0.5191665.001,2-Dichlorobenzene
0.5629423A -3.3 304.83 0.58242395.001,3-Dichlorobenzene
0.5534835A -4.6 304.77 0.57988195.001,4-Dichlorobenzene
1.200197A -19.7 304.02 1.4943185.00Dichlorodifluoromethane (Freon 12)
1.033143A -20.1 303.99 1.2934655.001,1-Dichloroethane
0.7117223A -22.4 303.88 0.91700995.001,2-Dichloroethane
0.8763843A -20.6 303.97 1.1030645.001,1-Dichloroethylene
0.7400477A -20.3 303.99 0.92816885.00cis-1,2-Dichloroethylene
0.7822026A -19.5 304.02 0.97214285.00trans-1,2-Dichloroethylene
0.2496897A -27.5 303.62 0.34441595.001,2-Dichloropropane
0.358744A -24.1 303.80 0.47257125.00cis-1,3-Dichloropropene
0.3119965A -24.7 303.76 0.41446895.00trans-1,3-Dichloropropene
1.420921A -14.9 304.26 1.669615.001,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
0.1198265A -22.2 303.89 0.15398975.001,4-Dioxane
0.1257555A -14.1 304.30 0.14638385.00Ethanol
0.251941A -16.7 304.16 0.30257245.00Ethyl Acetate
1.043258A -15.4 304.23 1.2335645.00Ethylbenzene
1.072718A -8.3 304.58 1.1700665.004-Ethyltoluene
0.2071703A -28.6 303.57 0.2901335.00Heptane
0.2568425A 5.9 305.29 0.24259655.00Hexachlorobutadiene
0.6906224A -15.3 304.24 0.90978295.00Hexane
Page 32 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S064623-CCV1
COMPOUND TYPE CCV MIN (#)CCV LIMIT (#)CCV ICAL
CONC. (ppbv)% DIFF / DRIFTRESPONSE FACTOR
STD
0.5010642A -22.2 303.89 0.64365695.002-Hexanone (MBK)
1.020523A -15.4 304.23 1.2069115.00Isopropanol
1.452769A -17.7 304.12 1.7653865.00Methyl tert-Butyl Ether (MTBE)
0.6802536A -20.3 303.98 0.85391515.00Methylene Chloride
0.5411206A -24.1 303.79 0.71308655.004-Methyl-2-pentanone (MIBK)
0.5865247A 15.0 305.75 0.51014915.00Naphthalene
0.4784077A -17.5 304.13 0.57972225.00Propene
0.6151153A -8.7 304.56 0.67396885.00Styrene
0.604613A -19.1 304.04 0.74771375.001,1,2,2-Tetrachloroethane
0.3799414A -6.7 304.67 0.40707565.00Tetrachloroethylene
0.2491666A -14.8 304.26 0.29233345.00Tetrahydrofuran
0.8321464A -16.0 304.20 0.99106715.00Toluene
0.2620257A 10.7 305.54 0.23665715.001,2,4-Trichlorobenzene
0.4143944A -23.3 303.84 0.54001585.001,1,1-Trichloroethane
0.2877744A -18.4 304.08 0.35253685.001,1,2-Trichloroethane
0.2843549A -26.6 303.67 0.38741055.00Trichloroethylene
1.350497A -13.8 304.31 1.5659075.00Trichlorofluoromethane (Freon 11)
1.116811A -12.9 304.36 1.282065.001,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.8242645A -10.2 304.49 0.91802015.001,2,4-Trimethylbenzene
0.8586715A -9.6 304.52 0.94941995.001,3,5-Trimethylbenzene
0.8487955A -24.3 303.78 1.1217485.00Vinyl Acetate
0.5785213A -24.8 303.76 0.76911755.00Vinyl Chloride
0.8018034A -13.2 308.68 0.923668110.0m&p-Xylene
0.8073537A -14.9 304.25 0.94887845.00o-Xylene
* Values outside of QC limits
# Column to be used to flag Response Factor and %Diff/Drift values with an asterisk
Page 33 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
EPA TO-15 in Air
AIHA,NY,ME,NHAcetone
AIHA,FL,NJ,NY,ME,NH,VABenzene
AIHA,FL,NJ,NY,ME,NH,VABenzyl chloride
AIHA,NJ,NY,ME,NH,VABromodichloromethane
AIHA,NJ,NY,ME,NH,VABromoform
AIHA,FL,NJ,NY,ME,NHBromomethane
AIHA,NJ,NY,ME,NH,VA1,3-Butadiene
AIHA,FL,NJ,NY,ME,NH,VA2-Butanone (MEK)
AIHA,NJ,NY,ME,NH,VACarbon Disulfide
AIHA,FL,NJ,NY,ME,NH,VACarbon Tetrachloride
AIHA,FL,NJ,NY,ME,NH,VAChlorobenzene
AIHA,FL,NJ,NY,ME,NH,VAChloroethane
AIHA,FL,NJ,NY,ME,NH,VAChloroform
AIHA,FL,NJ,NY,ME,NH,VAChloromethane
AIHA,NJ,NY,ME,NH,VACyclohexane
AIHA,NY,ME,NHDibromochloromethane
AIHA,NJ,NY,ME,NH1,2-Dibromoethane (EDB)
AIHA,FL,NJ,NY,ME,NH,VA1,2-Dichlorobenzene
AIHA,NJ,NY,ME,NH1,3-Dichlorobenzene
AIHA,FL,NJ,NY,ME,NH,VA1,4-Dichlorobenzene
AIHA,NY,ME,NHDichlorodifluoromethane (Freon 12)
AIHA,FL,NJ,NY,ME,NH,VA1,1-Dichloroethane
AIHA,FL,NJ,NY,ME,NH,VA1,2-Dichloroethane
AIHA,FL,NJ,NY,ME,NH,VA1,1-Dichloroethylene
AIHA,FL,NY,ME,NH,VAcis-1,2-Dichloroethylene
AIHA,NJ,NY,ME,NH,VAtrans-1,2-Dichloroethylene
AIHA,FL,NJ,NY,ME,NH,VA1,2-Dichloropropane
AIHA,FL,NJ,NY,ME,NH,VAcis-1,3-Dichloropropene
AIHA,NY,ME,NHtrans-1,3-Dichloropropene
AIHA,NJ,NY,ME,NH,VA1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
AIHA,NJ,NY,ME,NH,VA1,4-Dioxane
AIHAEthanol
AIHAEthyl Acetate
AIHA,FL,NJ,NY,ME,NH,VAEthylbenzene
AIHA,NJ4-Ethyltoluene
AIHA,NJ,NY,ME,NH,VAHeptane
AIHA,NJ,NY,ME,NH,VAHexachlorobutadiene
AIHA,FL,NJ,NY,ME,NH,VAHexane
AIHA2-Hexanone (MBK)
AIHA,NY,ME,NHIsopropanol
AIHA,FL,NJ,NY,ME,NH,VAMethyl tert-Butyl Ether (MTBE)
AIHA,FL,NJ,NY,ME,NH,VAMethylene Chloride
AIHA,FL,NJ,NY,ME,NH4-Methyl-2-pentanone (MIBK)
NY,ME,NHNaphthalene
AIHAPropene
AIHA,FL,NJ,NY,ME,NH,VAStyrene
AIHA,FL,NJ,NY,ME,NH,VA1,1,2,2-Tetrachloroethane
Page 34 of 38
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
EPA TO-15 in Air
AIHA,FL,NJ,NY,ME,NH,VATetrachloroethylene
AIHATetrahydrofuran
AIHA,FL,NJ,NY,ME,NH,VAToluene
AIHA,NJ,NY,ME,NH,VA1,2,4-Trichlorobenzene
AIHA,FL,NJ,NY,ME,NH,VA1,1,1-Trichloroethane
AIHA,FL,NJ,NY,ME,NH,VA1,1,2-Trichloroethane
AIHA,FL,NJ,NY,ME,NH,VATrichloroethylene
AIHA,NY,ME,NHTrichlorofluoromethane (Freon 11)
AIHA,NJ,NY,ME,NH,VA1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
AIHA,NJ,NY,ME,NH1,2,4-Trimethylbenzene
AIHA,NJ,NY,ME,NH1,3,5-Trimethylbenzene
AIHA,FL,NJ,NY,ME,NH,VAVinyl Acetate
AIHA,FL,NJ,NY,ME,NH,VAVinyl Chloride
AIHA,FL,NJ,NY,ME,NH,VAm&p-Xylene
AIHA,FL,NJ,NY,ME,NH,VAo-Xylene
Con-Test, a Pace Environmental Laboratory, operates under the following certifications and accreditations:
Code Description Number Expires
100033AIHA-LAP, LLC - ISO17025:2017AIHA 03/1/2022
M-MA100Massachusetts DEPMA 06/30/2022
PH-0165Connecticut Department of Publilc HealthCT 12/31/2022
10899 NELAPNew York State Department of HealthNY 04/1/2022
2516 NELAPNew Hampshire Environmental LabNH-S 02/5/2022
LAO00112Rhode Island Department of HealthRI 12/30/2021
652North Carolina Div. of Water QualityNC 12/31/2021
MA007 NELAPNew Jersey DEPNJ 06/30/2022
E871027 NELAPFlorida Department of HealthFL 06/30/2022
LL720741Vermont Department of Health Lead LaboratoryVT 07/30/2022
MA00100State of MaineME 06/9/2023
460217Commonwealth of VirginiaVA 12/14/2021
2557 NELAPNew Hampshire Environmental LabNH-P 09/6/2022
VT-255716Vermont Department of Health Drinking WaterVT-DW 06/12/2022
25703North Carolina Department of HealthNC-DW 07/31/2022
68-05812Commonwealth of Pennsylvania DEPPA 06/30/2022
9100Dept. of Env, Great Lakes, and EnergyMI 09/6/2022
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Appendix G
DEQ Risk Calculator

Version Date:
Basis:
Site Name:Site Address:
DEQ Section:Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
Building 1004 - Worst-Case
North Carolina Department of Environmental Quality
Risk Calculator
Old Pineville Road
4928 Old Pineville Road Charlotte, NC
DWM Brownfields
10061-06-060
June 2021
May 2021 EPA RSL Table
11/11/2021
Prepared By:H&H
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID: 10061-06-060
Exposure Unit ID: Building 1004 - Worst-Case
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID: 10061-06-060
Exposure Unit ID: Building 1004 - Worst-Case
Description of Exposure Point Concentration Selection:
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical
Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units
Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening
Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
160 67-64-1 Acetone ug/m3
0.99 71-43-2 Benzene ug/m3
0.43 56-23-5 Carbon Tetrachloride ug/m3
1.2 74-87-3 Chloromethane ug/m3
8.3 110-82-7 Cyclohexane ug/m3
2.3 75-71-8 Dichlorodifluoromethane ug/m3
11 141-78-6 Ethyl Acetate ug/m3
0.36 100-41-4 Ethylbenzene ug/m3
240 109-99-9 ~Tetrahydrofuran ug/m3
0.9 142-82-5 Heptane, N-ug/m3
3.4 110-54-3 Hexane, N-ug/m3
25 67-63-0 Isopropanol ug/m3
1200 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
7.9 75-09-2 Methylene Chloride ug/m3
0.88 91-20-3 ~Naphthalene ug/m3
4.3 115-07-1 Propylene ug/m3
0.36 100-42-5 Styrene ug/m3
3.2 108-88-3 Toluene ug/m3
0.58 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-ug/m3
1.5 75-69-4 Trichlorofluoromethane ug/m3
0.96 108-67-8 Trimethylbenzene, 1,3,5-ug/m3
1.2 108-38-3 Xylene, m-ug/m3
0.43 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
Risk for Individual Pathways Output Form 1A
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID: 10061-06-060
Exposure Unit ID: Building 1004 - Worst-Case
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 4.4E-07 3.1E-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
3. NM = Not Modeled
4. NC = Pathway not calculated
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the NC
2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID: 10061-06-060
Exposure Unit ID: Building 1004 - Worst-Case
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 160 4.8 -6.5E+03 1.5E-04
71-43-2 Benzene 0.99 0.0297 3.6E-01 6.3E+00 8.3E-08 9.5E-04
56-23-5 Carbon Tetrachloride 0.43 0.0129 4.7E-01 2.1E+01 2.8E-08 1.2E-04
74-87-3 Chloromethane 1.2 0.036 -1.9E+01 3.8E-04
110-82-7 Cyclohexane 8.3 0.249 -1.3E+03 4.0E-05
75-71-8 Dichlorodifluoromethane 2.3 0.069 -2.1E+01 6.6E-04
141-78-6 Ethyl Acetate 11 0.33 -1.5E+01 4.5E-03
100-41-4 Ethylbenzene 0.36 0.0108 1.1E+00 2.1E+02 9.6E-09 1.0E-05
109-99-9 ~Tetrahydrofuran 240 7.2 -4.2E+02 3.5E-03
142-82-5 Heptane, N-0.9 0.027 -8.3E+01 6.5E-05
110-54-3 Hexane, N-3.4 0.102 -1.5E+02 1.4E-04
67-63-0 Isopropanol 25 0.75 -4.2E+01 3.6E-03
78-93-3 Methyl Ethyl Ketone (2-Butanone)1200 36 -1.0E+03 6.9E-03
75-09-2 Methylene Chloride 7.9 0.237 1.0E+02 1.3E+02 2.3E-09 3.8E-04
91-20-3 ~Naphthalene 0.88 0.0264 8.3E-02 6.3E-01 3.2E-07 8.4E-03
115-07-1 Propylene 4.3 0.129 -6.3E+02 4.1E-05
100-42-5 Styrene 0.36 0.0108 -2.1E+02 1.0E-05
108-88-3 Toluene 3.2 0.096 -1.0E+03 1.8E-05
76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-0.58 0.0174 -1.0E+03 3.3E-06
75-69-4 Trichlorofluoromethane 1.5 0.045 --
108-67-8 Trimethylbenzene, 1,3,5-0.96 0.0288 -1.3E+01 4.6E-04
108-38-3 Xylene, m-1.2 0.036 -2.1E+01 3.5E-04
95-47-6 Xylene, o-0.43 0.0129 -2.1E+01 1.2E-04
Cumulative:4.4E-07 3.1E-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
Version Date:
Basis:
Site Name:Site Address:
DEQ Section:Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
11/11/2021
Prepared By:H&H
Building 1008 - Worst-Case
North Carolina Department of Environmental Quality
Risk Calculator
Old Pineville Road
4928 Old Pineville Road Charlotte, NC
DWM Brownfields
10061-06-060
June 2021
May 2021 EPA RSL Table
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID: 10061-06-060
Exposure Unit ID: Building 1008 - Worst-Case
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID: 10061-06-060
Exposure Unit ID: Building 1008 - Worst-Case
Description of Exposure Point Concentration Selection:
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical
Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units
Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening
Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
240 67-64-1 Acetone ug/m3
0.41 71-43-2 Benzene ug/m3
0.43 56-23-5 Carbon Tetrachloride ug/m3
1.3 74-87-3 Chloromethane ug/m3
12 110-82-7 Cyclohexane ug/m3
2.3 75-71-8 Dichlorodifluoromethane ug/m3
0.38 100-41-4 Ethylbenzene ug/m3
380 109-99-9 ~Tetrahydrofuran ug/m3
0.69 142-82-5 Heptane, N-ug/m3
3.6 110-54-3 Hexane, N-ug/m3
17 67-63-0 Isopropanol ug/m3
1300 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
1.7 91-20-3 ~Naphthalene ug/m3
1.8 115-07-1 Propylene ug/m3
4.2 108-88-3 Toluene ug/m3
0.55 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-ug/m3
2.3 75-69-4 Trichlorofluoromethane ug/m3
1.3 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
0.41 108-67-8 Trimethylbenzene, 1,3,5-ug/m3
1.1 108-38-3 Xylene, m-ug/m3
0.4 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
Risk for Individual Pathways Output Form 1A
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID: 10061-06-060
Exposure Unit ID: Building 1008 - Worst-Case
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 6.9E-07 3.5E-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
3. NM = Not Modeled
4. NC = Pathway not calculated
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the NC
2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID: 10061-06-060
Exposure Unit ID: Building 1008 - Worst-Case
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 240 7.2 -6.5E+03 2.2E-04
71-43-2 Benzene 0.41 0.0123 3.6E-01 6.3E+00 3.4E-08 3.9E-04
56-23-5 Carbon Tetrachloride 0.43 0.0129 4.7E-01 2.1E+01 2.8E-08 1.2E-04
74-87-3 Chloromethane 1.3 0.039 -1.9E+01 4.2E-04
110-82-7 Cyclohexane 12 0.36 -1.3E+03 5.8E-05
75-71-8 Dichlorodifluoromethane 2.3 0.069 -2.1E+01 6.6E-04
100-41-4 Ethylbenzene 0.38 0.0114 1.1E+00 2.1E+02 1.0E-08 1.1E-05
109-99-9 ~Tetrahydrofuran 380 11.4 -4.2E+02 5.5E-03
142-82-5 Heptane, N-0.69 0.0207 -8.3E+01 5.0E-05
110-54-3 Hexane, N-3.6 0.108 -1.5E+02 1.5E-04
67-63-0 Isopropanol 17 0.51 -4.2E+01 2.4E-03
78-93-3 Methyl Ethyl Ketone (2-Butanone)1300 39 -1.0E+03 7.5E-03
91-20-3 ~Naphthalene 1.7 0.051 8.3E-02 6.3E-01 6.2E-07 1.6E-02
115-07-1 Propylene 1.8 0.054 -6.3E+02 1.7E-05
108-88-3 Toluene 4.2 0.126 -1.0E+03 2.4E-05
76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-0.55 0.0165 -1.0E+03 3.2E-06
75-69-4 Trichlorofluoromethane 2.3 0.069 --
95-63-6 Trimethylbenzene, 1,2,4-1.3 0.039 -1.3E+01 6.2E-04
108-67-8 Trimethylbenzene, 1,3,5-0.41 0.0123 -1.3E+01 2.0E-04
108-38-3 Xylene, m-1.1 0.033 -2.1E+01 3.2E-04
95-47-6 Xylene, o-0.4 0.012 -2.1E+01 1.2E-04
Cumulative:6.9E-07 3.5E-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