22076_West Boulevard VIMS Installation Completion Report 20210428

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VIMS Installation Completion Report West Boulevard
West Boulevard and Hawkins Street Charlotte, North Carolina Brownfields Project No. 22076-18-060 H&H Job No. BCP-126

Table of Contents

1.0 Introduction ................................................................................................................ 1
2.0 Vapor Intrusion Mitigation System Installation ..................................................... 3
3.0 VIMS Efficacy Testing .............................................................................................. 7
3.1 VIMS Influence Testing ...........................................................................................7
3.2 Sub-Slab Soil Gas Sampling .....................................................................................8
4.0 Summary and Conclusions...................................................................................... 11

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List of Tables

Table 1 Summary of Soil Gas Analytical Data

List of Figures

Figure 1 Site Map
Figure 2 Redevelopment Layout

List of Appendices

Appendix A Historical Data Summary Tables and Sample Location Map
Appendix B VIMS As-Builts
Appendix C VIMS Product Specifications
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 West Boulevard West Boulevard and Hawkins Street Charlotte, North Carolina
Brownfields Project No. 22076-18-060 H&H Job No. BCP-126
1.0 Introduction
On behalf of The Square South End LLC (the Prospective Developer or PD), Hart & Hickman, PC
(H&H) has prepared this report to document vapor intrusion mitigation system (VIMS) installation
and VIMS post-installation efficacy testing activities completed for the office building on the
eastern portion of the West Boulevard Brownfields property located northwest of the intersection
of West Boulevard and Hawkins Street in Charlotte, Mecklenburg County, North Carolina (Site).
The eastern part of the Site has been redeveloped with a 10-story office building with commercial
tenant spaces on the ground floor. The western part of the Brownfields property will be developed
with a mixed-use residential and commercial building at a later date. Reporting for the mixed-use
building proposed in the western portion of the Site will be submitted under separate cover. A Site
Map is included as Figure 1, and a Redevelopment Layout map depicting the office building is
included as Figure 2.

A Brownfields Agreement between the North Carolina Department of Environmental Quality
(DEQ) and the PD was recorded for the Site on December 13, 2020. Land Use Restriction (LUR)
No. 7 included in the Brownfields Agreement generally indicates that no enclosed building may
be constructed on the Brownfields property until DEQ approves in writing that the building is
protective of the users from potential vapor intrusion. To address requirements outlined in LUR
No. 7, H&H prepared a Vapor Intrusion Mitigation Plan (VIMP) and revisions to the VIMP based
on DEQ comments dated April 8, 2020. The VIMP was approved by DEQ in a letter dated April
17, 2020.

The Site office building is a 10-story building that was constructed with a concrete slab-on-grade
foundation and load bearing columns. The ground floor layout is approximately 14,000 square
feet and includes a lobby, maintenance areas, and commercial tenant spaces. The DEQ-approved
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VIMP includes installation of a passive sub-slab depressurization system and post-installation
efficacy testing

A discussion of VIMS installation activities is provided in Section 2.0, a summary of VIMS
efficacy testing activities is provided in Section 3.0, and summary and conclusions based on the
results of the VIMS installation activities and VIMS efficacy assessment activities are provided in
Section 4.0.

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2.0 Vapor Intrusion Mitigation System Installation
H&H completed soil, groundwater, and soil gas assessment activities within the footprint of the
proposed office building in April 2019 to evaluate subsurface conditions for potential impacts.
Results of soil gas assessment activities completed in the area of the proposed commercial office
building indicated that tetrachloroethylene (PCE) was detected at concentrations above the DEQ
DWM Vapor Intrusion Sub-slab and Exterior Soil Gas Screening Level (SGSL) for non-residential
use. To further evaluate the potential for structural vapor intrusion into the proposed office
building, H&H utilized the DEQ Risk Calculator to evaluate potential cumulative vapor intrusion
risks under a non-residential use scenario. Using the highest concentrations of compounds
detected in the April 2019 soil gas samples collected in the area of the proposed office building to
represent worst-case conditions, results of the DEQ vapor intrusion risk calculations indicated that
there is no significant risk of potential structural vapor intrusion into the proposed office building.

Although soil gas sample results did not indicate that a VIMS was necessary, the PD elected to
proactively mitigate potential vapor intrusion risks for ground level components of the office
building, as a precautionary measure. A historical sample location map and a tabular summary of
the April 2019 soil gas sample analytical data are provided in Appendix A for ease of reference.

The VIMS consists of a passive sub-slab depressurization system, which includes a permeable
gravel layer, sub-slab vapor collection piping, riser piping, passive turbine ventilator fans, and a
vapor barrier. As-built drawings depicting he layout of the VIMS (VMP-1) and the system
specifications and details (VMP-2) are provided in Appendix B. Product specifications for the
VIMS components are included in Appendix C.

Passive sub-slab depressurization is achieved through an interconnected system of vapor
collection/conveyance piping installed in a permeable gravel layer beneath the building. The
permeable gravel layer (clean #57 or similar stone) was installed beneath the entirety of the
building to enhance sub-slab vapor transmission and collection effectiveness and allow for air
movement beneath the slab. Sub-slab vapor collection piping (4-inch diameter) was 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-
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slab piping (for example, 6-inches of gravel around a 4-inch pipe). In areas without sub-slab
piping, a minimum thickness of 4 inches of clean stone was installed.

Vapor extraction is accomplished using turbine ventilator fans and vapor collection/conveyance
piping. The sub-slab vapor collection piping is connected to riser piping which extends vertically
through the building and discharges vapors through exhaust stacks installed above the building
roof. Empire Model TV04SS (stainless steel) turbine ventilator fans were installed on the
discharge end of the exhaust stacks on the roof. For system redundancy, the vent system below
the ground floor space is interconnected. This interconnected system allows for continued sub-
slab depressurization below the slab in the event that one of the fans stops operating in between
periodic inspections.

Vaporblock® Plus 20 (VBP20), a vapor barrier manufactured by Raven Industries (Raven), was
installed above the gravel layer and beneath the concrete slab of the office building. VBP20 is an
ASTM-certified 20-mil, multi-layer, chemically resistant vapor barrier, designed to prevent the
migration of volatile organic compounds (VOCs). The vapor barrier was installed by the
construction contractor to cover the ground surface below the entire area of the ground floor slab.
The exterior edges of the VBP20 was laid underneath the footings and attached and sealed to
existing concrete by utilizing VaporSeal™ tape and Butyl Seal double-sided tape. Seams within
the building footprint have a minimum 12-inch overlap and were sealed with VaporSeal™ tape.
In areas where utility penetrations (i.e., piping, ducts, etc.) are present and the use of taping was
not practical or deemed as “ineffective” by the design engineer, the Pour-N-Seal™ method was
used to form an airtight seal around the penetrations. Please note that in the tenant pourback areas
(denoted on VMP-1 in Appendix B) the concrete slab has not yet been installed, but the vapor
barrier was installed, sealed, and inspected.

The VIMP includes vacuum measuring points (depicted in Sheet VMP-1) which were used to
measure vacuum during influence testing activities and to collect sub-slab vapor samples. To
prevent disrupting building operations in the future, the vacuum measuring point access ports were
installed in areas that would minimize disturbance to building occupants, such as lobby corners
and utility rooms (see Sheets VMP-1 and VMP-2). Additionally, temporary measuring points
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were placed in the tenant spaces to verify influence in both occupied spaces (see Section 3.1).
Upon upfit and completion of the proposed tenant spaces, new permanent vacuum measuring
points will be installed in these areas at locations to be selected based on the tenant layout. These
permanent locations will be discussed with DEQ prior to installation.

During installation of the VIMS in the office building, 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 horizontal collection system and gravel base placement;
• after vapor barrier installation and prior to pouring the concrete building slab; and
• after installation of exposed vertical exhaust riser pipe and fan installations.

Based upon inspections completed during the VIMS installation activities, the VIMS was generally
installed in accordance with the DEQ-approved VIMP. Please note that H&H was only able to
inspect exposed, representative portions of the vertical exhaust risers, and was not able to visually
inspect the risers on each floor of the building. However, based on discussions with the installation
contractor, the riser was installed vertically, as designed, and tightness testing of the riser was
completed by the mechanical contractor. Also, as noted below, a minor modification was needed
to the sub-slab piping layout in one portion of the building. A photographic log of the VIMS
installation activities is provided in Appendix D.

As shown in VMP-1 in Appendix B, the sub-slab piping layout was modified in the vicinity of the
northern stairwell. The original piping layout needed to be revised due to the location of the main
sewer line under the building. H&H modified the sub-slab piping to the opposite side of the
stairwell (southern to northern side) in order to connect the ground floor elevations without running
through areas where the sewer line was installed.

Future tenants for the commercial spaces on the first floor have not yet been determined. As such,
portions of the concrete slab were not completed and will be poured when future tenant utility
installations have been completed. The VIMS is considered functional without a completed floor
slab (as indicated by the influence testing discussed in Section 3.1). H&H completed an additional
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inspection on April 26, 2021 to verify the vapor barrier remained in good condition following the
completion of the majority of building construction. Controls such as wooden boards were
observed along areas of regular foot-traffic to protect the vapor barrier from being punctured and
foot traffic was limited.

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3.0 VIMS Efficacy Testing

To evaluate efficacy of the VIMS, H&H completed influence testing and collected sub-slab soil
gas samples. The efficacy testing was completed in accordance with the DEQ-approved VIMP,
and the sub-slab soil gas sampling was also conducted in accordance with the DEQ DWM Vapor
Intrusion Guidance (Guidance) dated March 2018.

3.1 VIMS Influence Testing

On March 1, 2021, H&H completed influence testing for the office building 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) differential
pressure the minimum vacuum needed for an active depressurization system to effectively treat
potential vapor intrusion.

To perform the influence testing, H&H connected electric fans with variable vacuum settings to
the vertical riser piping to model an active depressurization system. Differential pressure
measurements were collected at the vacuum monitoring points using a Dwyer series 475 Mark III
Digital manometer (capable of measuring to 0.001 inches of water column [in-WC] or 0.25 Pa) to
establish baseline conditions prior to use of the electric fans. The electric fans were then turned
on and differential pressure measurements were collected at each monitoring point over varied
time intervals. The locations of the permanent monitoring points (denoted by MP nomenclature)
and temporary monitoring points (denote by TMP nomenclature) are shown in VMP-1 (Appendix
B). The pilot test field forms are included in Appendix E. Results of the influence tests indicated
sufficient differential pressure (ranging from -0.636 to -0.913 in-WC, or -158 Pa to -227 Pa) in
each of the temporary and permanent monitoring points.

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3.2 Sub-Slab Soil Gas Sampling

Sampling Activities
Following successful installation of the VIMS, H&H collected eight sub-slab soil gas samples
from monitoring points installed within the building on March 11, 2021. The sub-slab soil gas
samples were collected from permanent monitoring point locations MP-1 through MP-6 and the
two temporary monitoring points TMP-1 and TMP-2, as shown in VMP-1 in Appendix C. One
duplicate sub-slab soil gas sample (MP-DUP-1) was also collected for quality assurance/quality
control (QA/QC) purposes from sub-slab soil gas sample location TMP-2 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.

Prior to sample collection, each sample point was purged and a leak test was performed. The leak
test was performed by placing a shroud around the sealed sampling point and sampling train,
flooding the air within the shroud with helium gas, then purging soil gas from the sampling point
with an electric air pump, and collecting the purged vapor into a Tedlar bag. A helium gas detector
was used to measure helium concentrations within the shroud and the Tedlar bag sample, and the
concentrations were recorded in field notes. The leak tests were considered successful as the
helium concentration measured in the soil gas purged from the sampling point and collected into
the Tedlar bag was less than 10% of the concentration measured within the shroud at each point.
In total, a minimum of 3 volumes was purged from the sample train prior to and during the leak
test.

To leak test the fittings in the sampling train, shut-in tests were performed in addition to the helium
leak tests. To complete the shut-in test, valves were used to seal the fittings where the sampling
train connects to the soil gas point and the Summa canister. A vacuum was then applied to the
sampling train using a vacuum pump. After a minimum vacuum of 100 inches of water was
achieved, a vacuum gauge on the sampling train was observed for at least 30 seconds to confirm
the pressure remained unchanged. The shut-in tests did not identify any leaks in the sampling
train.

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The sub-slab soil gas samples were collected in 1-liter Summa canisters at an approximate flow
rate of 100 mL/min. For each Summa canister, the vacuum was measured at the start and end of
the sampling event to confirm sufficient vacuum remained in the canisters prior to shipment to the
laboratory. The vacuum readings were recorded on the chain-of-custody and within the field notes.
The field sample forms are included in Appendix E.

The DWM VI Guidance recommends initial groundwater and soil gas assessment activities be
completed to reduce the analyte list for future vapor intrusion assessments and aid in eliminating
background sources. In accordance with the VI Guidance and based on the results of assessment
activities completed in 2019 within the footprint of the proposed office building, H&H submitted
the sub-slab soil gas samples for analysis of the select list of volatile organic compounds provided
in the DEQ-approved VIMP.

Sampling Results
A tabular summary of the sub-slab soil gas sample analytical results is provided in Table 1. The
results were compared to the DEQ DWM Non-Residential Vapor Intrusion Sub-Slab and Exterior
Soil Gas Screening Levels (SGSLs) dated January 2021. The laboratory analytical report with
chain of custody record is provided as Appendix F.

The sub-slab soil gas sample analytical results indicate that several compounds were detected at
concentrations above laboratory method detection limits in each sample, but below the DEQ DWM
Non-Residential Vapor Intrusion SGSLs. No compounds were detected at concentrations above
DEQ DWM Non-Residential Vapor Intrusion SGSLs in the office building sub-slab soil gas
samples.

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
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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.

Although no compounds were detected at concentrations exceeding the DEQ DWM Non-
Residential Vapor Intrusion SGSLs in the office building sub-slab soil gas samples, H&H utilized
the DEQ Risk Calculator (January 2021) to confirm there are no potential vapor intrusion risks at
unacceptable levels. Because the proposed building use includes office and commercial space,
H&H modeled a worst-case scenario by using the highest concentrations of any compound
detected in the sub-slab based on a non-residential use scenario to conservatively evaluate potential
vapor intrusion risks. The calculated cumulative LICR and HI values for the office building are
provided in Table 1, and a copy of the completed DEQ Risk Calculator is provided in Appendix G.

As shown in Table 1, results of the worst-case risk calculations indicate a calculated cumulative
LICR of 4.6 x10-8 and a HI value of 0.0040. The calculated cumulative non-residential use LICR
and HI values are orders of magnitude below the DEQ and EPA acceptable levels. These risk
calculator results confirm that compound concentrations detected below the slab do not pose vapor
intrusion risks at unacceptable levels within the office building.

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4.0 Summary and Conclusions

Construction of the office building is nearing completion on the eastern part of the West Boulevard
Brownfields property (Brownfields Project No. 22076-18-060) located in Charlotte, Mecklenburg
County. The mixed-use apartment building located in the western portion of the Site is also under
construction and includes a vapor mitigation system; however, a separate report will be submitted
for the mixed-use building, as construction is not complete.

During construction of the office building, H&H conducted VIMS installation inspections to
confirm the system was installed as designed and completed post-installation influence testing and
sub-slab soil gas sampling activities to evaluate efficacy of the system. The VIMS installation
inspections and post-installation testing activities were completed in general accordance with the
DEQ-approved VIMP. A brief summary of the VIMS installation and post-installation efficacy
assessment activities is provided below.

VIMS Installation
VIMS installation has been completed for the office building and consists of a passive sub-slab
depressurization system with vertical extraction piping to the roof connected to wind-driven
turbine fans. During installation of the VIMS, H&H personnel, under direction of a North Carolina
licensed 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. Minor modifications made during installation are
noted in this report.

VIMS Efficacy Testing
Influence testing and sub-slab vapor sampling were completed to evaluate efficacy of the VIMS.
The influence testing confirmed sufficient vacuum (greater than 4 Pa differential pressure) could
be achieved by vacuum fans, if an active system is needed in the future. Sub-slab soil gas sampling
included the collection of eight sub-slab soil gas samples within the Site building to evaluate the
effectiveness of the VIMS. Laboratory analytical results of the sub-slab soil gas samples indicate
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that no compounds were detected at concentrations above the DEQ DWM Non-Residential Vapor
Intrusion SGSLs.

H&H utilized the DEQ Risk Calculator (January 2021) to calculate the cumulative carcinogenic
and non-carcinogenic risks under a hypothetical worst-case non-residential-use scenario by
utilizing the highest concentration of each compound which was detected in the sub-slab soil gas
samples. The hypothetical worst-case non-residential use risk calculator results indicate a
calculated cumulative LICR of 4.6 x 10-8 and a calculated cumulative HI of 0.0040. The calculated
LICR and HI values are substantially below DEQ and EPA acceptable levels. This is very strong
indication that the VIMS is effectively treating potential vapor intrusion into the office building.

Summary
Based on results of the VIMS installation inspections and results of the post-installation influence
testing and sub-slab soil gas assessment activities, the VIMS is effectively mitigating potential
vapor intrusion risks at the Site. In accordance with the DEQ-approved VIMP, a second semi-
annual sub-slab soil gas sampling event will be completed in September 2021. The sub-slab gas
samples will be analyzed for the analyte list provided in the approved VIMP.

Future tenant upfit and sub-slab utility installations will require removal or penetration of the vapor
barrier. Following removal or penetration of the vapor barrier and completion of upfit and sub-
slab utility installation activities, a qualified contractor will repair and restore the vapor barrier or
disturbance of any other component of the VIMS in accordance with the VIMP. In addition,
restoration and repairs to VIMS components will be completed utilizing products and materials
outlined in this VIMP unless other similar product is pre-approved by a NC licensed Engineer.
Following VIMS restoration and repair activities and prior to placement of the concrete slab in a
tenant pour-back space, VIMS components will be visually inspected by a NC licensed Engineer
or designee. Documentation of system repairs and inspections will be provided to DEQ as an
addendum to the VIMS Installation Report at the completion of tenant upfit activities.

Tables
Table 1Summary of Soil Gas Analytical DataWest Boulevard - Office BuildingCharlotte, North CarolinaH&H Job No. BCP-126Sample Location Electrical Room Southern Retail Central Corridor Central Data Room Office Lobby Northern Retail Northern RetailSample ID MP-1 MP-2 MP-3 MP-4 MP-5 MP-6 TMP-1Date 3/11/2021 3/11/2021 3/11/2021 3/11/2021 3/11/2021 3/11/2021 3/11/2021 3/11/2021 3/11/2021UnitsVOCs (TO-15)Acetone 281 163 46.6 102 34.5 56.3 65.4 63.0 74.92,700,000Benzene<3.190.827 J<0.1600.719 J<0.1600.834 J<3.19 <3.19 <3.19160Bromodichloromethane<5.09 <0.255 <0.255 <0.255 <0.255 <0.255 <5.09 <5.09 <5.09332-Butanone (MEK) 4,580 578 375 400 572 680 1,570 2,050 952440,000Carbon Disulfide<31.2 <1.56 <1.56 <1.56 <1.56 <1.56 <31.2 <31.2 <31.261,000Chloroform<5.27 <0.264 <0.264 <0.264 <0.264 <0.264 <5.27 <5.27 <5.2753Cyclohexane<17.27.75<0.86128.5 11.7 76.4<17.2 <17.2 <17.2530,0001,3-Dichlorobenzene<4.33 <0.217 <0.217 <0.217 <0.217 <0.217 <4.33 <4.33 <4.33NEDichlorodifluoromethane<8.203.33 3.09 2.87 3.37 2.81<8.20 <8.20 <8.208,8001,2-Dichloroethane<4.37 <0.219 <0.219 <0.219 <0.219 <0.219 <4.37 <4.37 <4.3747cis-1,2-Dichloroethene<10.3 <0.515 <0.515 <0.515 <0.515 <0.515 <10.3 <10.3 <10.3NEtrans-1,2-Dichloroethene<9.50 <0.476 <0.476 <0.476 <0.476 <0.476 <9.50 <9.50 <9.503,500Ethylbenzene<3.733.16 1.37 J 2.00 J 2.64 5.19<3.73 <3.73 <3.734904-Ethyltoluene<5.311.01 J<0.2661.01 J<0.2661.47 J<5.31 <5.31 <5.31NEHeptane<3.854.26 1.59 J 6.93 3.95 20.8<3.85 <3.85 <3.8535,000Hexane<5.07 <0.254 <0.254 <0.254 <0.2545.90<5.07 <5.07 <5.0761,000Methylene Chloride<7.634.58 7.60 4.79 5.63 3.58<7.63 <7.63 <7.6353,0004-Methyl-2-pentanone (MIBK)<5.088.16 6.53 11.6 7.55 5.76<5.08 <5.08 <5.08260,000Naphthalene<7.72 <0.386 <0.3861.09 J<0.386 <0.386 <7.72 <7.72 <7.7236Propylene<2.79 <0.139 <0.139 <0.139 <0.139 <0.139 <2.79 <2.79 <2.79260,000Styrene<2.982.80 1.04 J<0.1493.94 8.93<2.98 <2.98 <2.9888,000Tetrachloroethylene<8.81 <0.441 <0.441 <0.441 <0.441 <0.441 <8.81 <8.81 <8.813,500Toluene<15.120.4 5.17 15.4 4.95 10.7<15.129.6 J 31.4 J440,000Trichloroethene<5.48 <0.274 <0.274 <0.274 <0.274 <0.274 <5.48 <5.48 <5.48180Trichlorofluoromethane (Freon 11)<8.66 <0.433 <0.433 <0.4332.13 J<0.433 <8.66 <8.66 <8.66NE1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)<10.6 <0.529 <0.529 <0.529 <0.529 <0.529 <10.6 <10.6 <10.6440,0001,2,4-Trimethylbenzene<5.904.25 4.07 4.79 4.09 6.40<5.90 <5.90 <5.905,3001,3,5-Trimethylbenzene<5.211.16 J 1.13 J 1.53 J 1.34 J 2.08 J<5.21 <5.21 <5.215,300Vinyl Chloride<5.63 <0.282 <0.282 <0.282 <0.282 <0.282 <5.63 <5.63 <5.63280m&p-Xylene<7.689.96 5.48 J 8.13 5.99 6.80<7.68 <7.68 <7.688,800o-Xylene<3.654.13 2.44 3.81 2.79 4.59<3.65 <3.65 <3.658,800DEQ Cumulative Risk Calculator(2)Acceptable Risk LevelsLICR (worst-case)<1 x 10-4Non-Carcinogenic HI (worst-case)<1.0Notes:1) NC Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Vapor Intrusion Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) (January 2021) 2) NC DEQ DWM Cumulative Risk Calculator dated January 2021.Compound concentrations are reported in micrograms per cubic meter (μg/m3)Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical method shown in parentheses.VOCs = volatile organic compounds; NE = Not Established; LICR = Lifetime Incremental Carcinogenic Risk; HI = Hazard IndexCumulative LICR and HI calculated using the worst-case scenario and compared to DEQ and EPA acceptable risk levels for carcinogenic and non-carcinogenic risks.J = compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in an estimated concentration.4.6 x 10-80.0040TMP-2/MP-DUP-1Southern RetailNon-Residential SGSLs (1)µg/m3M:\AAA‐Master Projects\Beacon Partners‐ BEP or BCP\BCP‐126 The Square at South End\VMP\Installation Completion Report\Square at South End (BCP‐126) Data Tables4/26/2021Table 1 (Page 1 of 1)Hart & Hickman, PC

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Appendix A
Historical Data Summary Tables and Sample Location Maps

Table 3Summary of Soil Gas Analytical Data West BoulevardCharlotte, North CarolinaH&H Job No. BCP-126Sample LocationSample ID SG-1 SG-2 SG-3 SG-5 SG-6 SG-7 SG-8 SG-9Date 4/4/2019 4/4/2019 4/4/2019 4/4/2019 4/4/2019 4/4/2019 4/4/2019 4/4/2019Depth (ft bgs) 885 77775UnitsVOCs (TO-15)Acetone<2.418.3 2,840 17.9 15.3 15.5 20.9 14.4 29.0 30.2220,000 2,700,000Benzene 9.9 23.44,84015.614.66.235.921.35.51.71201,600Bromodichloromethane<0.74<0.71<3551.8 J1.9 J<0.710.84 J<0.74<0.71<1.3253302-Butanone (MEK)3.8 J6.5<358<0.77<0.811.7 J4.5 J3.1 J12.713.435,000440,000Carbon Disulfide12310.2<2124.34.78.018.09.14.86.44,90061,000Chloroform<0.401.7<1904.84.60.58 J5.92.01.6<0.7141530Chloromethane<0.32<0.30<151<0.332.1<0.30<0.30<0.32<0.30<0.566307,900Cyclohexane<0.7145.1<34266.146.312.768.757.16.53.8 J42,000530,0001,3-Dichlorobenzene21.022.5<56319.819.04.323.018.927.36.0NENEDichlorodifluoromethane1.9 J2.1<2842.22.2 J2.02.22.21.9 J1.7 J7008,8001,2-Dichloroethane<0.30<0.293,430<0.32<0.33<0.29<0.29<0.30<0.29<0.5436470trans-1,2-Dichloroethene<0.581.2 J<2761.0 J<0.62<0.55<0.55<0.58<0.55<1.0NENEEthylbenzene2.245.22,17053.149.35.919.024.23.62.9 J3704,9004-Ethyltoluene<1.219.2<55334.231.2<1.16.58.06.3<2.1NENEHeptane19.4144<36887.980.229.571.883.010.83.32,80035,000Hexane57913098,70096395238.81851124375.04,90061,0002-Hexanone<1.5<1.4<722<1.6<1.6<1.4<1.4<1.5<1.43.5 J2102,600Methylene Chloride19.921.7<91519.020.431.419.117.09.616.44,20053,0004-Methyl-2-pentanone (MIBK)<1.03.2 J<5023.4 J2.6 J<1.04.6 J3.2 J9.99.3 J21,000260,000Naphthalene<2.75.72,370 J3.3 J<2.9 <2.6 <2.62.8 J<2.6 <4.821 260Propylene 712<0.28 <139 <0.30 <0.3165.9 626 572 152 4.821,000 260,000Styrene<0.692.2<3344.9 4.9<0.671.7 2.5<0.67 <1.27,000 88,000Tetrachloroethylene 22.68,3707154,8704,5308681,6609891261422803,500Toluene9.3575<34020019149.214113124.722.335,000440,000Trichloroethene<0.520.60 J<2491.30.71 J<0.500.94 J<0.52<0.50<0.9314180Trichlorofluoromethane (Freon 11)<0.741.8 J<3552.1 J<0.801.4 J2.2 J<0.74<0.71<1.3NENE1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113) 1.1 J<1.1<547<1.21.6 J<1.11.7 J2.5 J<1.1<2.035,000440,0001,2,4-Trimethylbenzene1.3 J60.41,48090.285.42.319.421.915.53.0 J4205,3001,3,5-Trimethylbenzene0.89 J19.822,40031.429.50.81 J5.66.75.4<1.44205,300m&p-Xylene6.4186<67825823920.977.310315.213.37008,800o-Xylene2.356.0<33465.260.55.822.927.14.94.37008,800Notes:1) NC Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Vapor Intrusion Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) (February 2018)Compound concentrations are reported in micrograms per cubic meter (μg/m3)Compound concentrations are reported to the laboratory method detection limits.Bold indicates concentration exceeds Residential SGSLUnderline indicates concentration exceeds Non-Residential SGSLOnly those compounds detected in at least one sample are shown above.Laboratory analytical method shown in parentheses.VOCs = volatile organic compounds; ft bgs= feet below ground surface; NE = Not EstablishedJ = compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in an estimated concentration.Eastern BuildingWestern BuildingResidential SGSLs (1)Non-Residential SGSLs (1)µg/m34/4/20197SG-4/DUP-SGS:\AAA‐Master Projects\Beacon Partners‐ BEP or BCP\BCP‐126 The Square at South End\Brownfields Assessment\Tables\Square at South End (BCP‐126) Data Tables5/15/2019Table 3 (Page 1 of 1) Hart & Hickman, PC
PARKING DECKOPEN SPACEPROPOSEDCOMMERCIAL/RESIDENTIALBUILDING FOOTPRINTPROPOSED OFFICEBUILDING FOOTPRINTPAVEDPAVEDA
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PAVEDSG-1SG-2SG-3SG-4/DUP-SGSG-5SG-6SG-7SG-8SG-9COMP-5SOIL GAS COMPOUND CONCENTRATION MAP2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologyJOB NO. BCP-126REVISION NO. 0DATE: 6-3-19FIGURE NO. 3LEGENDBROWNFIELDS PROPERTY BOUNDARYTEMPORARY SOIL GAS MONITORING POINTLOCATIONWEST BOULEVARDS. TRYON STREET AND WEST BOULEVARDCHARLOTTE, NORTH CAROLINANOTES:1. PROPOSED BUILDING LOCATIONS APPROXIMATED BASED ON CONCEPTUAL REDEVELOPMENTRENDERING.2. BROWNFIELDS SOIL GAS MONITORING POINTS WERE INSTALLED 4/3/19 THROUGH 4/4/19 AND WERESAMPLED ON 4/4/19.3. 1,2-DCA = 1,2-DICHLOROETHANEPCE = TETRACHLOROETHYLENEμg/m3 = MICROGRAMS PER CUBIC METER4. ONLY THOSE COMPOUNDS DETECTED ABOVE APPLICABLE STANDARDS IN AT LEAST ONE SAMPLESHOWN.5.BOLD INDICATES CONCENTRATION EXCEEDS RESIDENTIAL SOIL GAS SCREENING LEVEL (SGSL)6.UNDERLINE INDICATES CONCENTRATION EXCEEDS NON-RESIDENTIAL SGSL.7. LICR = CUMULATIVE LIFETIME INCREMENTAL CANCER RISK8. HI = CUMULATIVE HAZARD INDEX9. WORST CASE VAPOR INTRUSION RISK FOR SAMPLES THE WESTERN MIXED USE BUILDING INCLUDEHIGHEST CONCENTRATIONS DETECTED IN SAMPLES SG-5 THROUGH SG-9.10. WORST CASE VAPOR INTRUSION RISK FOR SAMPLES THE EASTERN MIXED USE BUILDING INCLUDEHIGHEST CONCENTRATIONS DETECTED IN SAMPLES SG-1 AND SG-2.HA
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T S. TRYON STREETWEST BOULEVARDCONSTITUENTCONCENTRATION (μg/m3)SAMPLE IDENTIFICATIONSG-3BENZENE4,8401,2-DCA3,430ETHYLBENZENE2,170HEXANE98,700NAPHTHALENE2,370 JPCE7151,2,4-TRIMETHYLBENZENE1,4801,3,5-TRIMETHYLBENZENE22,400SG-4/DUP-SGBENZENE15.6 14.61,2-DCA<0.32 <0.33ETHYLBENZENE53.1 49.3HEXANE963 952NAPHTHALENE3.3 J <2.9PCE4,8704,5301,2,4-TRIMETHYLBENZENE90.2 85.41,3,5-TRIMETHYLBENZENE31.4 29.5SG-5BENZENE6.21,2-DCA<0.29ETHYLBENZENE5.9HEXANE38.8NAPHTHALENE<2.6PCE8681,2,4-TRIMETHYLBENZENE2.31,3,5-TRIMETHYLBENZENE0.81 JSG-6BENZENE35.91,2-DCA<0.29ETHYLBENZENE19.0HEXANE185NAPHTHALENE<2.6PCE1,6601,2,4-TRIMETHYLBENZENE19.41,3,5-TRIMETHYLBENZENE5.6SG-2BENZENE23.41,2-DCA<0.29ETHYLBENZENE45.2HEXANE130NAPHTHALENE5.7PCE8,3701,2,4-TRIMETHYLBENZENE60.41,3,5-TRIMETHYLBENZENE19.8SG-1BENZENE9.91,2-DCA<0.30ETHYLBENZENE2.2HEXANE579NAPHTHALENE<2.7PCE22.61,2,4-TRIMETHYLBENZENE1.3 J1,3,5-TRIMETHYLBENZENE0.89 JSG-7BENZENE21.31,2-DCA<0.30ETHYLBENZENE24.2HEXANE112NAPHTHALENE2.8 JPCE9891,2,4-TRIMETHYLBENZENE21.91,3,5-TRIMETHYLBENZENE6.7SG-8BENZENE5.51,2-DCA<0.29ETHYLBENZENE3.6HEXANE437NAPHTHALENE<2.6PCE1261,2,4-TRIMETHYLBENZENE15.51,3,5-TRIMETHYLBENZENE5.4SG-9BENZENE1.71,2-DCA<0.54ETHYLBENZENE2.9 JHEXANE5.0NAPHTHALENE<4.8PCE1421,2,4-TRIMETHYLBENZENE3.0 J1,3,5-TRIMETHYLBENZENE<1.4SG-6BENZENE35.91,2-DCA<0.29ETHYLBENZENE19.0HEXANE185NAPHTHALENE<2.6PCE1,6601,2,4-TRIMETHYLBENZENE19.41,3,5-TRIMETHYLBENZENE5.6MIXED USEBLDGCOMMERCIALOFFICE BLDGWORST CASE VI RISKRESIDENTIAL USELICR1.7X10-5HI3.9WORST CASE VI RISKCOMMERCIAL USELICR2.2X10-6HI0.5S:\AAA-Master Projects\Beacon Partners- BEP or BCP\BCP-126 The Square at South End\Figures\Site Map.dwg, FIG 4, 6/3/2019 1:43:48 PM, erichardson

Appendix B
VIMS As-Built Drawings
ELEVATORUPUPUPFIRECOMMANDBACKFLOWRETAILOFFICELOBBYRETAILSTAIR 2EXITCORRIDORTRASHROOMEMERGENCYELECTRICALCORRIDORSPRINKLERROOMSTAIR 1BIKE ROOMTELE / DATAMAIL ROOMELEV. 1ELEV. 2ELEV. 3LOBBYEXITCORRIDOR729.00729.00729.00729.00729.00729.00COFFEEB.O.H.COFFEEKIOSK730.50730.50730.50730.50730.50730.50729.00STORAGEGENERATORMAINELECTRICALROOM729.00729.00F-1MP-1F-2F-3MP-2MP-3MP-4MP-5MP-6TMP-1TMP-2F-3AFENCEDTRANSFORMERw w w. a x
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CHARLOTTE, NORTH CAROLINA
T H E S Q U A R E
A T S O U T H E N D ISSUED FOR CONSTRUCTIONLEGENDEXTENT OF VAPOR BARRIER - SEE SPECIFICATION #3 ON SHEET VM-24" SCH 40 PVC SLOTTED PIPE (INSTALL 4" VENT CAP AT END OF SLOTTED SECTIONS)4" SCH 40 PVC SOLID PIPE6" SCH 40 PVC SOLID PIPEVERTICAL RISER (4" NON-PLASTIC PIPE) AND FAN (REFER TO DETAIL #9 FOR VENTILATORFAN SET-UP)VERTICAL RISER (6" NON-PLASTIC PIPE) AND FAN (REFER TO DETAIL #9 FOR VENTILATORFAN SET-UP)VERTICAL RISER LOCATION OF RISER F-3 FROM SECOND FLOOR TO ROOFVACUUM MEASURING POINT (2" SCH 40 PVC WITH OPEN END)TENANT POURBACK AREAS (CONCRETE SLAB NOT INSTALLED)F-1MP-1TEMPORARY VACUUMMEASURING POINTTEMPORARY VACUUMMEASURING POINT1VM22VM23VM23VM24VM25VM26VM28VM29VM22923 South Tryon Street
-Suite 100Charlotte, No
rth Carol
ina 28203704-586-0007(p) 704-586-0373(f
)License
# C-1269 / #C-245 GeologyF-3VAPOR BARRIER(SEE SPECIFICATION #1)RISER DUCT PIPE IN WALLBASE COURSE(SEE SPECIFICATION #1)4" SCH 40 SLOTTED PVC6" SCH 40 PVC 90 DEGREEELBOW - TRANSITION FROMNON-PLASTIC TO PVC PIPING6" TO 4" SCH 40 SOLIDPVC REDUCERRISER DUCT HORIZONTAL RUNTHROUGH SPRINKLER ROOMCEILING - 0.1% SLOPE REQUIREDSPRINKLER
ROOMHORIZONTAL RISER RUNNTSVM11VERTICAL RISER F-3 RUNSHORIZONTALLY THROUGH THE CEILINGOF THE FIRST FLOOR TO THE F-3A RISERLOCATION. THE RISER RUNSVERTICALLY IN THE F-3A LOCATIONFROM THE SECOND FLOOR TO THEDISCHARGE ON THE ROOF.1VM17VM21VM1F-3F-3AF-3APROFESSIONALAPPROVAL:
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A T S O U T H E N DFLOOR CLEANOUT FLUSHWITH FINISHED FLOORSEE DETAIL #5
.VIMS VAPOR LINER AND BASE COURSE (TYP)1VIMS SLOTTED COLLECTION PIPE (TYP)2BASE COURSE - CLEAN #57 STONEMIN 4" THICK BENEATH VIMS VAPOR LINERVAPOR LINER (SEE SPECIFICATION #3)4" SCH 40 THREADED FLUSH JOINTSLOTTED OR PERFORATED PVC PIPE SET WITHINBASE COURSE - MIN THICKNESS TO COVER PIPE WITH1-INCH ABOVE AND BELOW(SEE SPECIFICATION #3 AND #6)VAPOR LINER (SEE SPECIFICATION #3)CONCRETE FLOOR SLABSUBBASENTSNTSVM2VM2VIMS TURBINE VENTILATOR FAN & EXHAUST (TYP)10VM2NTSTURBINE VENTILATOR FAN(EMPIRE MODEL TV04SS ORAPPROVED EQUIVALENT)ELECTRICAL JUNCTION BOX FOR POTENTIAL FUTUREVACUUM FAN (SEE SPECIFICATION #8)4" NON-PLASTIC PIPING THROUGH ROOFFLASHINGROOFTOP 4NTSVM2ELEVATOR PIT AND CORE MAT FOUNDATION9NTSVM22" SCH 40 PVC 90 DEGREE ELBOWVAPOR LINER PENETRATION SEALED TOPIPE PER MANUFACTURER INSTRUCTIONS2" VENT SCREEN ATEND OF PIPEBASE COURSE(SEE SPECIFICATION #3)EXTERNAL/STUD WALL(NOT PRESENT IN ALLLOCATIONS)2" SOLID SCH 40 PVCVACUUM MEASURING POINTPOSITION
VACUUMMONITORING POINT SO VENTSCREEN IS AT LEAST 5 FT FROMAN EXTERNAL WALLVIMS PRESSURE MEASURING POINT - DETAIL VIEWNTSVM25VAPOR LINER PENETRATION SEALED TO PIPEPER MANUFACTURER INSTRUCTIONSFINISHED FLOOR VENEERFINISHED FLOOR SLAB2" SCH 40 PVC(SEE DETAIL #4)2" DRAIN EXPANSION
TEST PLUGFLOOR CLEANOUT, ADJUSTABLE,2" DIA ZURN INDUSTRIESMODEL #CO2450-PV2 (OR EQUIVALENT)BASE COURSE(SEE SPECIFICATION #3)2" SOLID SCH 40 PVC2' MIN2' MINEXTERNAL/STUD WALL(NOT PRESENT IN ALLLOCATIONS)SUBBASEVIMS RISER PIPING AT WALL8VM2NTSSTUD WALLBASE COARSE(SEE SPECIFICATION #3)VAPOR LINER SEALED TO
PIPE ANDCONCRETE PER MANUFACTURERINSTRUCTIONS
.SUBBASEFLOOR SYSTEM SEE FRAMING PLANSRUN RISER PIPE TOROOF (SEE DETAIL #8)INDOORS (OCCUPIED SPACE)SEPARATE INDOOR SPACE4" SOLID SCH 40 PVC - SLOPED TOWARD THESLOTTED SECTION
TO GRAVITY DRAIN4" (6" AT RISER F-3) NON-PLASTIC RISER DUCT PIPE(SEE SPECIFICATION #7, #8, & #9)SECTION THROUGH EXTERIOR WALLNTSVM2BRICK OR BUILDING SIDINGEXTERNAL WALL (NOTPRESENT AT ALL LOCATIONS)STUD WALLBASE COARSE(SEE SPECIFICATION #3)VAPOR LINER SEALED TO CONCRETE PERMANUFACTURER INSTRUCTIONS.SUBBASE3VAPOR INTRUSION MITIGATION SYSTEM (VIMS) SPECIFICATIONS1.THE AS-BUILT DRAWINGS ARE INTENDED TO ILLUSTRATE VIMS COMPONENT INSTALLATION ONLY AND IS NOT INTENDED TO SHOWCONSTRUCTION OF STRUCTURAL COMPONENTS NOT RELATED TO THE VIMS.2.VIMS VAPOR LINER IS VAPORBLOCK PLUS 20 VAPOR BARRIER MANUFACTURED BY RAVEN INDUSTRIES. THE VAPOR LINER WASINSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER INSTALLATION INSTRUCTIONS TO CREATE A CONTINUOUS LINERBELOW GROUND FLOOR SLAB. A BASE COURSE CONSISTING OF CLEAN #57 WAS INSTALLED BENEATH THE VIMS VAPOR LINER. INAREAS AROUND THE SUB-SLAB PIPING, THE BASE COURSE LAYER IS THICK ENOUGH TO COVER THE SUB-SLAB PIPING WITH AMINIMUM 1-INCH LAYER ABOVE AND BELOW THE PIPING. IN AREAS WITHOUT PIPING, THE BASE COURSE IS A MINIMUM OF 4-INCHESTHICK.3.ALL PENETRATIONS WERE SEALED ACCORDING TO VAPOR LINER MANUFACTURER INSTALLATION INSTRUCTIONS AS FOUND IN THEMANUFACTURER INSTALLATION GUIDELINES. SMALL PUNCTURE HOLES WERE SEALED WITH THE VAPORSEALÔ TAPE ORPOUR-N-SEALÔAND LARGER HOLES, TEARS, OR DAMAGE WERE REPAIRED USING A PATCH THAT OVERLAPS THE DAMAGED AREAAND THEN TAPED ALONG THE SEAMS. IN AREAS WHERE UTILITY PENETRATIONS (I.E. PIPING, DUCTS, ETC) ARE PRESENT AND THEUSE OF TAPING WAS NOT PRACTICAL OR DEEMED AS "INEFFECTIVE" BY THE DESIGN ENGINEER, POUR-N-SEALÔ WAS POURED INTOFORM TO PATCH THE PENETRATION WITH AN AIRTIGHT SEAL.4.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS USED TEMPORARY FORM BOARDS THAT PENETRATED THE VAPOR LINER.THE SIZE AND NUMBER OF PENETRATIONS THROUGH THE VAPOR LINER WAS LIMITED AND AS FORM BOARDS WERE REMOVED, THECONTRACTOR OR SUB-CONTRACTORS SEALED ALL PENETRATIONS IN ACCORDANCE WITH VAPOR LINER MANUFACTURERINSTALLATION INSTRUCTIONS.5.VIMS BELOW AND ABOVE GRADE PIPING IS SLOPED A MINIMUM OF 18 UNIT VERTICAL IN 12 UNITS HORIZONTAL (1% SLOPE) TOGRAVITY DRAIN. SOLID SECTIONS OF HORIZONTAL COLLECTION PIPE WERE SUPPORTED TO PREVENT PIPE SAG OR LOW POINTAND MAINTAIN 1% SLOPE TOWARD SLOTTED SECTIONS TO DRAIN CONDENSATION. HORIZONTAL COLLECTION PIPE CONSISTS OF 4"OR 6" SCH 40 PVC (OR OTHERWISE NOTED IN THE DRAWINGS). SUB-SLAB SLOTTED VAPOR COLLECTION PIPE WAS THREADEDFLUSH JOINT OR GLUE JOINT 4" SCH 40 PVC PIPE WITH 0.032" SLOT WIDTH AND 14" SLOT SPACING.6.4" (RISER F-1 AND F-2) AND 6" (RISER F-3) NON-PLASTIC RISER DUCT PIPING WAS INSTALLED TO CONNECT EACH SLAB PENETRATIONLOCATION TO A ROOFTOP EXHAUST DISCHARGE POINT WITH TURBINE FAN (SEE DETAIL #10). ABOVE-SLAB RISER DUCT PIPE RUNSBETWEEN THE SLAB PENETRATION AND THE ROOFTOP EXHAUST DISCHARGE WERE INSTALLED PER APPLICABLE BUILDING CODEAND AS SPECIFIED IN THE CONSTRUCTION DOCUMENTS AND DRAWINGS.7.RISER DUCT PIPING EXTENDS IN A VERTICAL ORIENTATION THROUGH THE BUILDING ROOF AND TERMINATES A MINIMUM OF 2 FTABOVE THE BUILDING ROOF LINE INCLUDING WALLS, PARAPETS, ETC. A EMPIRE MODEL TV04SS (STAINLESS STEEL) TURBINEVENTILATOR FAN WAS INSTALLED ON THE EXHAUST DISCHARGE END OF EACH RISER DUCT PIPE. AN ADAPTOR COUPLING WASINSTALLED AT THE DISCHARGE END OF THE 4" OR 6" RISER DUCT PIPE AND THE FAN WAS SECURED TO THE NON-PLASTIC RISER INA VERTICAL ORIENTATION. EXHAUST DISCHARGE LOCATIONS ARE A MINIMUM OF 10 FT FROM ANY OPERABLE OPENING OR AIRINTAKE INTO THE BUILDING. AN ELECTRICAL JUNCTION BOX (120V, 60Hz AC REQUIRED) WAS INSTALLED NEAR THE FAN LOCATIONON THE ROOFTOP FOR CONVERSION TO ELECTRIC FANS, IF REQUIRED. ALL WIRING AND ELECTRICAL WAS INSTALLED PERAPPLICABLE BUILDING AND ELECTRICAL CODES.8.ABOVE-SLAB ACCESSIBLE RISER DUCT PIPING IS PERMANENTLY IDENTIFIED BY MEANS OF A TAG OR STENCIL AT A MINIMUM OFONCE EVERY 10-LINEAR FT WITH "VAPOR MITIGATION". THE TURBINES WERE LABELED WITH "VAPOR MITIGATION ".9.INSPECTIONS OF EACH COMPONENT OF THE VIMS WERE CONDUCTED BY THE ENGINEER, OR ENGINEER'S DESIGNEE, TO CONFIRMVIMS COMPONENTS WERE INSTALLED PER THE APPROVED DESIGN. THE COMPLETED INSPECTIONS INCLUDED: (1) INSPECTION OFSUB-SLAB PIPING LAYOUT AND GRAVEL PLACEMENT PRIOR TO INSTALLING VAPOR LINER; (2) INSPECTION OF VAPOR LINER PRIORTO POURING CONCRETE; (3) INSPECTION OF ABOVE-GRADE EXPOSED PIPING LAYOUT; AND (4) INSPECTION OF FAN AND VENT PIPECONNECTIONS. PLEASE NOTE, CONCRETE HAS NOT BEEN POURED IN THE TENANT POURBACK AREAS SHOWN ON VMP-1 AND WILLBE POURED FOLLOWING TENANT UPFIT AT A LATER TIME.TRANSITION FROM PVC PIPE(BELOW SLAB) TO NON-PLASTICPIPE ABOVE SLABTYPICAL VIMS PIPING AT SLAB ON GRADE DEPRESSION6NTSVM24" SCH 40 PVC SLOTTEDPIPE
(SEE DETAIL #6)4" SCH 40 PVCSOLID PIPE4" SCH 40 PVC 45DEGREE ELBOWSEE VMP-1 DETAIL #1 FOR6-INCH RISER (F-3)SPECIFICATIONS2923 South Tryon Street-Suite 100Charlotte, North Caro
lina
28203704-586
-0007(p) 704-586-0373(f)License # C-1269
/ #C-245 GeologySUB-BASEVAPOR LINER SEALED TOWATERPROOFING ALONG VERTICALSECTIONSWATERPROOFINGVAPOR LINERSEALED TOCONCRETE PERMANUFACTURERINSTRUCTIONS
VAPOR LINERSEALED TOCONCRETE PERMANUFACTURERINSTRUCTIONSELEVATOR PITELEVATOR PITWATERPROOFINGCORE MAT FOUNDATIONVERTICAL RISER AT SLAB PENETRATION WITH TEENTSVAPOR LINER PENETRATION SEALED TOPIPE PER MANUFACTURER INSTRUCTIONS
4" SCH 40 PVC 90 DEGREE TEESTUD WALL4" SCH 40 PVC RISER DUCT PIPE(SEE SPECIFICATION #8 & #9)SOLID 4" SCH 40 PVC TO SLOTTED 3" SCH 40PVC PIPE TRANSITION (SLIP COUPLINGOR THREADED JOINT)4" SOLID SCH 40 PVC(SEE SPECIFICATION #5)7VM2SOLID 4" SCH 40 PVC TO SLOTTED 3" SCH 40PVC P
IPE TRANS
ITION (SLIP COUPLINGOR THREADED JOINT)BASE COURSEPROJECT A-1811APRIL 28, 2021VMP-2VAPOR INTRUSIONMITIGATION PLAN -DETAILS ANDSPECIFICATIONSAS BUILTISSUED FOR CONSTRUCTION

Appendix C
VIMS 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.
TURBINE VENTILATORS
CONSTRUCTION SPECIFICATIONS
“A”
THROAT SIZE
GUAGE NO. OF
BRACES
BRACE
MATERIALCROWN GALV.BLADE GALV.THROAT GALV.
4 24 28 26 3 ALUMINUM
6 24 28 26 3 ALUMINUM
8 24 28 26 3 ALUMINUM
10 24 28 26 3 ALUMINUM
12 24 28 24 3 ALUMINUM
14 22 26 24 3 ALUMINUM
16 22 26 24 3 STEEL
18 22 26 24 4 STEEL
20 20 26 24 4 STEEL
24 20 26 22 4 STEEL
DIMENSIONAL AND PERFORMACE DATA
“A”
THROAT SIZE
“B”
HEIGHT
“C”
OVERALL WIDTH
EXHAUSTED
CAPACITY*
APPROX.
SHIPPING WEIGHT
4 12 10 1/4 125 5
6 14 1/2 12 3/4 147 7
8 15 14 1/4 255 8
10 16 1/4 16 1/4 425 11
12 17 19 631 13
14 19 3/4 22 3/4 700 21
16 21 3/4 25 1/2 950 31
18 24 29 1200 38
20 25 1/4 31 5/8 1700 46
24 28 1/4 35 3/4 2350 58
*4 MPHWIND CFM

Appendix D
VIMS Installation Photographs
Photograph 2: General view of the vapor barrier installation. BCP-1262923 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.
WEST BOULEVARDWESTBOULEVARDANDHAWKINS STREETCHARLOTTE, NORTH CAROLINA
Photograph 4: Turbine ventilator fans installed at the termination of the riser piping.BCP-1262923 S. Tryon Street, Suite 100
Charlotte, NC 28203704.586.0007(p) 704.586.0373(f)
Photograph 3: Vertical riser piping running to the roof.
WEST BOULEVARDWESTBOULEVARDANDHAWKINS STREETCHARLOTTE, NORTH CAROLINA

Appendix E
Field Forms
Initials________________________
Sub-Slab VIMS Pilot Test
Site Address:__________________________________________________________________________
Date: ___________ Test Start Time:___________ Weather:_______________________________
Sub-Slab Test # _______ Location:_______________________________________________________
Time
Fan#  Suction Point Vacuum (“WC) 
Fan#Suction Point Vacuum (“WC)
Fan# Suction Point Vacuum (“WC)
Fan# Suction Point Vacuum (“WC)
Observation
Point
Baseline
Pressure
Pressure
“WC
Pressure
“WC
Pressure
“WC
Pressure
“WC
Pressure
“WC
OP #
OP #
OP #
OP #
OP #
Comments____________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
AEM, SPH
200 West Blvd
3/1/21 11:32 rainy, 60s
1 ground floor
NM -0.647 -0.636
NM -0.829 -0.811
NM -0.891 -0.868
NM -0.913 -0.893
NM -0.809 -0.792
MP-6: NM -0.901 -0.868
TMP-1: NM -0.810 -0.804
TMP-2: NM -0.787 -0.775
11:37 11:50
NM NM
NM NM
NM NM
1
2
3
1
2
3
4
5
Form SV‐1Sub-Slab / Soil Gas Vapor Installation Field FormProject No.:_BCP-126_________________ Sampler:_____SPH_________________Weather:______70s______________________________________________________Surface MaterialSlab Thickness (if appl.) Material Below Slab (if appl.)Depth of Screen (if appl.)Type Date & TimeAmbient Temp.Purge MethodVolume PurgedShroud Helium Conc.Purge Helium Conc.Leak Test Pass? (see note)SS, SGPerm., Temp.Concrete, soil, gravel, asphaltInchesGravel, sand, clay, etc.ft bgsFull sample train or point-onlymm/dd/yy 24-hroFSyringe, pumpLiters (see notes for calc.)%% or ppm(indicate units below)Yes / NoS: MP-1C: 5981R: 6568S: MP-2C: 5547R: 13135 S: MP-3C: 5987R: 14302S: MP-4C: 5513R: 13118S: MP-5C: 5978R: 6563S: MP-6C: 5980R: 13112S = sample ID; C = canister ID; R = regulator ID; SS = sub-slab; SG = soil gas; Perm = permanent; Temp = temporary; Volume Purged = x3 purge volumes = 3*L*aLast updated: 6/18/2020" Hg = inches of mercury; ppm = parts per millionNotes:________________________________________________________________________________________________________________________________________________________________________________________________________________Sample ID TypeVapor Monitoring Point Construction Helium Leak TestNote: Leak Test RequirementsPer NC DEQ DWM Vapor Intrusion Guidance, leak test passes if helium concentration in purge air is less than 10% of helium concentration in shroud. L = length of tubing/pipe (ft)a = 0.163 for 2" diameter (L/ft)a = 0.010 for 0.25" diameter (L/ft)C:\Users\mvawter\Dropbox\yOther\Form Edits\IAQ‐SSV\Vapor Sampling Forms_V6.0Sub‐Slab / Soil Gas Sampling Vapor Installation Field FormHart & Hickman, PCSSPERMCONCRETE6GRAVELN/AFULL3/11/2165PUMP3 VOL29%0 PPMYESSSPERMCONCRETE6GRAVELN/AFULL3/11/2165PUMP3 VOL28%2,300 PPMYESSSPERMCONCRETE6GRAVELN/AFULL3/11/2165PUMP3 VOL23%425 PPMYESSSPERMCONCRETE6GRAVELN/AFULL3/11/2165PUMP3 VOL26%0 PPMYESSSPERMCONCRETE6GRAVELN/AFULL3/11/2165PUMP3 VOL23%1,100 PPMYESSSPERMCONCRETE6GRAVELN/AFULL3/11/2165PUMP3 VOL26%700 PPMYES
Form SV‐1Sub-Slab / Soil Gas Vapor Installation Field FormProject No.:__________________ Sampler:______________________Weather:____________________________________________________________Surface MaterialSlab Thickness (if appl.) Material Below Slab (if appl.)Depth of Screen (if appl.)Type Date & TimeAmbient Temp.Purge MethodVolume PurgedShroud Helium Conc.Purge Helium Conc.Leak Test Pass? (see note)SS, SGPerm., Temp.Concrete, soil, gravel, asphaltInchesGravel, sand, clay, etc.ft bgsFull sample train or point-onlymm/dd/yy 24-hroFSyringe, pumpLiters (see notes for calc.)%% or ppm(indicate units below)Yes / NoS: TMP-1C: 6002R: 6571S: TMP-2/MP-DUP-1 C: 5982/5994R: 13126S:C:R:S:C:R:S:C:R:S:C:R:S = sample ID; C = canister ID; R = regulator ID; SS = sub-slab; SG = soil gas; Perm = permanent; Temp = temporary; Volume Purged = x3 purge volumes = 3*L*aLast updated: 6/18/2020" Hg = inches of mercury; ppm = parts per millionNotes:________________________________________________________________________________________________________________________________________________________________________________________________________________Sample ID TypeVapor Monitoring Point Construction Helium Leak TestNote: Leak Test RequirementsPer NC DEQ DWM Vapor Intrusion Guidance, leak test passes if helium concentration in purge air is less than 10% of helium concentration in shroud. L = length of tubing/pipe (ft)a = 0.163 for 2" diameter (L/ft)a = 0.010 for 0.25" diameter (L/ft)C:\Users\mvawter\Dropbox\yOther\Form Edits\IAQ‐SSV\Vapor Sampling Forms_V6.0Sub‐Slab / Soil Gas Sampling Vapor Installation Field FormHart & Hickman, PCSSPERMCONCRETE6GRAVELN/AFULL3/11/2165PUMP3 VOL24%0 PPMYESSSPERMCONCRETE6GRAVELN/AFULL3/11/2165PUMP3 VOL21%0 PPMYES
Form SV‐2Sub-Slab / Soil Gas Vapor Sampling Field FormProject No.:___________________ Sampler:______________________ Weather:____________________________________________________________Date Proposed Sampling Duration Time Canister PressureOutdoor TemperatureOutdoor HumidityIndoor TemperatureIndoor Humiditymm/dd/yy Minutes24-hr" HgoF%oF%S: MP-1BeginningC: 5981Middle R: 6568    End S: MP-2BeginningC: 5547Middle R: 13135    End S: MP-3BeginningC: 5987 Middle R: 14302    End S: MP-4BeginningC: 5513Middle R: 13118    End S: MP-5BeginningC: 5978Middle R: 6563    End S: MP-6BeginningC: 5980Middle R: 13112    End S = sample ID; C = canister ID; R = regulator ID; SS = sub-slab; SG = soil gas; Perm = permanent; Temp = temporaryLast updated: 6/18/2020" Hg = inches of mercuryNotes:_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Sample ID          Size: 1LFlow Rate: 100 mL/minSampling InformationIndoor ParametersOutdoor ParametersSampling PeriodNote: Per NC DEQ DWM Vapor Intrusion Guidance, shut‐in test and helium leak check must be passed before sampling.C:\Users\mvawter\Dropbox\yOther\Form Edits\IAQ‐SSV\Vapor Sampling Forms_V6.0Sub‐Slab / Soil Gas Sampling Vapor Sampling Field FormHart & Hickman, PC12:5513:0013:06-27-16.5-511:4411:5111:54-27-12-511:2111:2811:32-28-14-512:1012:1612:21-28-15-510:2210:2810:32-28-14-5-27-16.5-5          Size: 1LFlow Rate: 100 mL/min          Size: 1LFlow Rate: 100 mL/min          Size: 1LFlow Rate: 100 mL/min          Size: 1LFlow Rate: 100 mL/min          Size: 1LFlow Rate: 100 mL/min3/11/21103/11/21103/11/21103/11/21103/11/21103/11/21109:489:559:587070----6565----7070----6565----7070----6565----
Form SV‐2Sub-Slab / Soil Gas Vapor Sampling Field FormProject No.:___________________ Sampler:______________________ Weather:____________________________________________________________Date Proposed Sampling Duration Time Canister PressureOutdoor TemperatureOutdoor HumidityIndoor TemperatureIndoor Humiditymm/dd/yy Minutes24-hr" HgoF%oF%BeginningMiddle End BeginningMiddle End BeginningMiddle End BeginningMiddle End BeginningMiddle End S: BeginningC: Middle R:     End S = sample ID; C = canister ID; R = regulator ID; SS = sub-slab; SG = soil gas; Perm = permanent; Temp = temporaryLast updated: 6/18/2020" Hg = inches of mercuryNotes:_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Sample IDSampling InformationIndoor ParametersOutdoor ParametersSampling PeriodNote: Per NC DEQ DWM Vapor Intrusion Guidance, shut‐in test and helium leak check must be passed before sampling.C:\Users\mvawter\Dropbox\yOther\Form Edits\IAQ‐SSV\Vapor Sampling Forms_V6.0Sub‐Slab / Soil Gas Sampling Vapor Sampling Field FormHart & Hickman, PC9:219:299:31-26-9-510:4810:5310:56-26-12.5-5          Size: Flow Rate: 3/11/21103/11/2110S: C: R:               Size: Flow Rate: S: C: R:               Size: Flow Rate: S: C: R:               Size: Flow Rate: S: TMP-1C: 6002 R: 6571    S: TMP-2/MP-DUP-1 C: 5982/5994R:    13126          Size: 1LFlow Rate: 100 mL/min          Size: 1LFlow Rate: 100 mL/min7070----6565----

Appendix F
Laboratory Analytical Reports

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

3/25/2021
Hart & Hickman (Charlotte) Alexi McKenzie
2923 South Tryon St. Ste 100 Charlotte, NC, 28203
Ref: Analytical Testing
Revised Lab Report Number: 21-071-0022 Client Project Description: BCP.126
Dear Alexi McKenzie:
Waypoint Analytical, LLC (Charlotte) received sample(s) on 3/12/2021 for the analyses presented in the
following report.
The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method.
The analytical data has been validated using standard quality control measures performed as required by the
analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136
Method Update Rule May 2012) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time.
Refer to sample analysis time for confirmation of holding time compliance.
The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to
the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely,
Angela D Overcash Senior Project Manager
Page 1 of 14
Certification Summary
Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC
State Program Lab ID Expiration Date
07/31/202137735State ProgramNorth Carolina
12/31/2021402State ProgramNorth Carolina
07/31/202199012State ProgramSouth Carolina
12/31/202099012State ProgramSouth Carolina
Page 1 of 1 00016/21-071-0022
Page 2 of 14
Report Number:
Sample Summary Table
Client Project Description:
21-071-0022
BCP.126
Lab No Client Sample ID Matrix Date Collected Date Received
03/11/2021 10:22Air 94615 MP-5 03/12/2021 12:40
03/11/2021 11:21Air 94616 MP-3 03/12/2021 12:40
Page 3 of 14
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
21-071-0022
Report Limit
Project:BCP.126
V 94615MP-5
34.5 03/18/2021 18:24TO-15 Acetone µg/m3 0.594
11.7 03/18/2021 18:24TO-15 Cyclohexane µg/m3 0.861
3.37 03/18/2021 18:24TO-15 Dichlorodifluoromethane µg/m3 0.410
2.64 03/18/2021 18:24TO-15 Ethylbenzene µg/m3 0.187
3.95 03/18/2021 18:24TO-15 Heptane µg/m3 0.193
572 03/16/2021 18:06TO-15 Methyl Ethyl Ketone (MEK)µg/m3 5.90
7.55 03/18/2021 18:24TO-15 4-Methyl-2-Pentanone µg/m3 0.254
5.63 03/18/2021 18:24TO-15 Methylene Chloride µg/m3 0.383
3.94 03/18/2021 18:24TO-15 Styrene µg/m3 0.149
4.95 03/18/2021 18:24TO-15 Toluene µg/m3 0.754
J2.13 03/18/2021 18:24TO-15 Trichlorofluoromethane µg/m3 0.433
4.09 03/18/2021 18:24TO-15 1,2,4-Trimethylbenzene µg/m3 0.295
J1.34 03/18/2021 18:24TO-15 1,3,5-Trimethylbenzene µg/m3 0.261
2.79 03/18/2021 18:24TO-15 o-Xylene µg/m3 0.182
5.99 03/18/2021 18:24TO-15 m,p-Xylene µg/m3 0.384
V 94616MP-3
46.6 03/18/2021 14:56TO-15 Acetone µg/m3 0.594
3.09 03/18/2021 14:56TO-15 Dichlorodifluoromethane µg/m3 0.410
J1.37 03/18/2021 14:56TO-15 Ethylbenzene µg/m3 0.187
J1.59 03/18/2021 14:56TO-15 Heptane µg/m3 0.193
375 03/16/2021 18:45TO-15 Methyl Ethyl Ketone (MEK)µg/m3 5.90
6.53 03/18/2021 14:56TO-15 4-Methyl-2-Pentanone µg/m3 0.254
7.60 03/18/2021 14:56TO-15 Methylene Chloride µg/m3 0.383
J1.04 03/18/2021 14:56TO-15 Styrene µg/m3 0.149
5.17 03/18/2021 14:56TO-15 Toluene µg/m3 0.754
4.07 03/18/2021 14:56TO-15 1,2,4-Trimethylbenzene µg/m3 0.295
J1.13 03/18/2021 14:56TO-15 1,3,5-Trimethylbenzene µg/m3 0.261
2.44 03/18/2021 14:56TO-15 o-Xylene µg/m3 0.182
J5.48 03/18/2021 14:56TO-15 m,p-Xylene µg/m3 0.384
Page 4 of 14
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0022
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexi McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Revised Report Date: 03/25/2021
Original Report Date : 03/22/2021
Sample ID :
Lab No :
Sampled:MP-5
94615 Matrix:
3/11/2021 10:22
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2224 03/16/21 10:00 V2233 03/16/21 10:00
34.5 µg/m3 0.594 2.38Acetone 1 03/18/21 18:24 V2227CBM
<0.160 µg/m3 0.160 1.60Benzene 1 03/18/21 18:24 V2227CBM
<0.255 µg/m3 0.255 3.35Bromodichloromethane 1 03/18/21 18:24 V2227CBM
<1.56 µg/m3 1.56 6.23Carbon Disulfide 1 03/18/21 18:24 V2227CBM
<0.264 µg/m3 0.264 2.44Chloroform 1 03/18/21 18:24 V2227CBM
11.7 µg/m3 0.861 3.44Cyclohexane 1 03/18/21 18:24 V2227CBM
<0.217 µg/m3 0.217 3.011,3-Dichlorobenzene 1 03/18/21 18:24 V2227CBM
3.37 µg/m3 0.410 2.47Dichlorodifluoromethane 1 03/18/21 18:24 V2227CBM
<0.219 µg/m3 0.219 2.02
1,2-Dichloroethane 1 03/18/21 18:24 V2227CBM
<0.515 µg/m3 0.515 1.98cis-1,2-Dichloroethene 1 03/18/21 18:24 V2227CBM
<0.476 µg/m3 0.476 1.98trans-1,2-Dichloroethene 1 03/18/21 18:24 V2227CBM
2.64 µg/m3 0.187 2.17Ethylbenzene 1 03/18/21 18:24 V2227CBM
<0.266 µg/m3 0.266 2.464-Ethyltoluene 1 03/18/21 18:24 V2227CBM
<0.529 µg/m3 0.529 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 03/18/21 18:24 V2227CBM
3.95 µg/m3 0.193 2.05Heptane 1 03/18/21 18:24 V2227CBM
<0.254 µg/m3 0.254 1.76
n-Hexane 1 03/18/21 18:24 V2227CBM
572 µg/m3 5.90 29.5Methyl Ethyl Ketone (MEK)20 03/16/21 18:06 V2237CBM
7.55 µg/m3 0.254 2.054-Methyl-2-Pentanone 1 03/18/21 18:24 V2227CBM
5.63 µg/m3 0.383 1.74Methylene Chloride 1 03/18/21 18:24 V2227CBM
<0.386 µg/m3 0.386 2.62Naphthalene 1 03/18/21 18:24 V2227CBM
<0.139 µg/m3 0.139 0.861Propene 1 03/18/21 18:24 V2227CBM
3.94 µg/m3 0.149 2.13Styrene 1 03/18/21 18:24 V2227CBM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 5 of 14
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0022
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexi McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Revised Report Date: 03/25/2021
Original Report Date : 03/22/2021
Sample ID :
Lab No :
Sampled:MP-5
94615 Matrix:
3/11/2021 10:22
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2224 03/16/21 10:00 V2233 03/16/21 10:00
<0.441 µg/m3 0.441 3.39Tetrachloroethene 1 03/18/21 18:24 V2227CBM
4.95 µg/m3 0.754 1.88Toluene 1 03/18/21 18:24 V2227CBM
<0.274 µg/m3 0.274 2.15Trichloroethene 1 03/18/21 18:24 V2227CBM
2.13 J µg/m3 0.433 2.81Trichlorofluoromethane 1 03/18/21 18:24 V2227CBM
4.09 µg/m3 0.295 2.461,2,4-Trimethylbenzene 1 03/18/21 18:24 V2227CBM
1.34 J µg/m3 0.261 2.461,3,5-Trimethylbenzene 1 03/18/21 18:24 V2227CBM
<0.282 µg/m3 0.282 1.28Vinyl Chloride 1 03/18/21 18:24 V2227CBM
2.79 µg/m3 0.182 2.17o-Xylene 1 03/18/21 18:24 V2227CBM
5.99 µg/m3 0.384 5.65
m,p-Xylene 1 03/18/21 18:24 V2227CBM
Surrogate: 4-Bromofluorobenzene 101 Limits: 70-130%03/18/21 18:241 CBM V2227
Surrogate: 4-Bromofluorobenzene 94.4 Limits: 70-130%03/16/21 18:0620 CBM V2237
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 6 of 14
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0022
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexi McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Revised Report Date: 03/25/2021
Original Report Date : 03/22/2021
Sample ID :
Lab No :
Sampled:MP-3
94616 Matrix:
3/11/2021 11:21
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2224 03/16/21 10:00 V2233 03/16/21 10:00
46.6 µg/m3 0.594 2.38Acetone 1 03/18/21 14:56 V2227CBM
<0.160 µg/m3 0.160 1.60Benzene 1 03/18/21 14:56 V2227CBM
<0.255 µg/m3 0.255 3.35Bromodichloromethane 1 03/18/21 14:56 V2227CBM
<1.56 µg/m3 1.56 6.23Carbon Disulfide 1 03/18/21 14:56 V2227CBM
<0.264 µg/m3 0.264 2.44Chloroform 1 03/18/21 14:56 V2227CBM
<0.861 µg/m3 0.861 3.44Cyclohexane 1 03/18/21 14:56 V2227CBM
<0.217 µg/m3 0.217 3.011,3-Dichlorobenzene 1 03/18/21 14:56 V2227CBM
3.09 µg/m3 0.410 2.47Dichlorodifluoromethane 1 03/18/21 14:56 V2227CBM
<0.219 µg/m3 0.219 2.02
1,2-Dichloroethane 1 03/18/21 14:56 V2227CBM
<0.515 µg/m3 0.515 1.98cis-1,2-Dichloroethene 1 03/18/21 14:56 V2227CBM
<0.476 µg/m3 0.476 1.98trans-1,2-Dichloroethene 1 03/18/21 14:56 V2227CBM
1.37 J µg/m3 0.187 2.17Ethylbenzene 1 03/18/21 14:56 V2227CBM
<0.266 µg/m3 0.266 2.464-Ethyltoluene 1 03/18/21 14:56 V2227CBM
<0.529 µg/m3 0.529 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 03/18/21 14:56 V2227CBM
1.59 J µg/m3 0.193 2.05Heptane 1 03/18/21 14:56 V2227CBM
<0.254 µg/m3 0.254 1.76
n-Hexane 1 03/18/21 14:56 V2227CBM
375 µg/m3 5.90 29.5Methyl Ethyl Ketone (MEK)20 03/16/21 18:45 V2237CBM
6.53 µg/m3 0.254 2.054-Methyl-2-Pentanone 1 03/18/21 14:56 V2227CBM
7.60 µg/m3 0.383 1.74Methylene Chloride 1 03/18/21 14:56 V2227CBM
<0.386 µg/m3 0.386 2.62Naphthalene 1 03/18/21 14:56 V2227CBM
<0.139 µg/m3 0.139 0.861Propene 1 03/18/21 14:56 V2227CBM
1.04 J µg/m3 0.149 2.13Styrene 1 03/18/21 14:56 V2227CBM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 7 of 14
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0022
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexi McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Revised Report Date: 03/25/2021
Original Report Date : 03/22/2021
Sample ID :
Lab No :
Sampled:MP-3
94616 Matrix:
3/11/2021 11:21
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2224 03/16/21 10:00 V2233 03/16/21 10:00
<0.441 µg/m3 0.441 3.39Tetrachloroethene 1 03/18/21 14:56 V2227CBM
5.17 µg/m3 0.754 1.88Toluene 1 03/18/21 14:56 V2227CBM
<0.274 µg/m3 0.274 2.15Trichloroethene 1 03/18/21 14:56 V2227CBM
<0.433 µg/m3 0.433 2.81Trichlorofluoromethane 1 03/18/21 14:56 V2227CBM
4.07 µg/m3 0.295 2.461,2,4-Trimethylbenzene 1 03/18/21 14:56 V2227CBM
1.13 J µg/m3 0.261 2.461,3,5-Trimethylbenzene 1 03/18/21 14:56 V2227CBM
<0.282 µg/m3 0.282 1.28Vinyl Chloride 1 03/18/21 14:56 V2227CBM
2.44 µg/m3 0.182 2.17o-Xylene 1 03/18/21 14:56 V2227CBM
5.48 J
µg/m3 0.384 5.65
m,p-Xylene 1 03/18/21 14:56 V2227CBM
Surrogate: 4-Bromofluorobenzene 96.9 Limits: 70-130%03/18/21 14:561 CBM V2227
Surrogate: 4-Bromofluorobenzene 92.7 Limits: 70-130%03/16/21 18:4520 CBM V2237
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 8 of 14
Quality Control Data
21-071-0022Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
BCP.126
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V2227QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V2224
Associated Lab Samples: 94615, 94616
LRB-V2224 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
03/18/21 11:512.380.594<0.594µg/m3Acetone
03/18/21 11:511.600.160<0.160µg/m3Benzene
03/18/21 11:513.350.255<0.255µg/m3Bromodichloromethane
03/18/21 11:516.231.56<1.56µg/m3Carbon Disulfide
03/18/21 11:512.440.264<0.264µg/m3Chloroform
03/18/21 11:513.440.861<0.861µg/m3Cyclohexane
03/18/21 11:513.010.217<0.217µg/m31,3-Dichlorobenzene
03/18/21 11:512.470.410<0.410µg/m3Dichlorodifluoromethane
03/18/21 11:512.020.219<0.219µg/m31,2-Dichloroethane
03/18/21 11:511.980.515<0.515µg/m3cis-1,2-Dichloroethene
03/18/21 11:511.980.476<0.476µg/m3trans-1,2-Dichloroethene
03/18/21 11:512.170.187<0.187µg/m3Ethylbenzene
03/18/21 11:512.460.266<0.266µg/m34-Ethyltoluene
03/18/21 11:513.830.529<0.529µg/m31,1,2-Trichloro-1,2,2-trifluoroethane
03/18/21 11:512.050.193<0.193µg/m3Heptane
03/18/21 11:511.760.254<0.254µg/m3n-Hexane
03/18/21 11:512.050.254<0.254µg/m34-Methyl-2-Pentanone
03/18/21 11:511.740.383<0.383µg/m3Methylene Chloride
03/18/21 11:512.620.386<0.386µg/m3Naphthalene
03/18/21 11:510.8610.139<0.139µg/m3Propene
03/18/21 11:512.130.149<0.149µg/m3Styrene
03/18/21 11:513.390.441<0.441µg/m3Tetrachloroethene
03/18/21 11:511.880.754<0.754µg/m3Toluene
03/18/21 11:512.150.274<0.274µg/m3Trichloroethene
03/18/21 11:512.810.433<0.433µg/m3Trichlorofluoromethane
03/18/21 11:512.460.295<0.295µg/m31,2,4-Trimethylbenzene
03/18/21 11:512.460.261<0.261µg/m31,3,5-Trimethylbenzene
Page 1 of 4Date:03/25/2021 01:38 PM
Page 9 of 14
Quality Control Data
21-071-0022Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
BCP.126
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V2227QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V2224
Associated Lab Samples: 94615, 94616
LRB-V2224 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
03/18/21 11:511.280.282<0.282µg/m3Vinyl Chloride
03/18/21 11:512.170.182<0.182µg/m3o-Xylene
03/18/21 11:515.650.384<0.384µg/m3m,p-Xylene
03/18/21 11:514-Bromofluorobenzene (S)91.6 70-130
LCS-V2224Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
95.711.411.9µg/m3Acetone 70-130
86.813.916.0µg/m3Benzene 70-130
81.727.433.5µg/m3Bromodichloromethane 70-130
96.715.115.6µg/m3Carbon Disulfide 70-130
83.120.324.4µg/m3Chloroform 70-130
82.514.217.2µg/m3Cyclohexane 70-130
98.629.730.1µg/m31,3-Dichlorobenzene 70-130
88.621.924.7µg/m3Dichlorodifluoromethane 70-130
81.616.520.2µg/m31,2-Dichloroethane 70-130
94.918.819.8µg/m3cis-1,2-Dichloroethene 70-130
92.418.319.8µg/m3trans-1,2-Dichloroethene 70-130
95.320.721.7µg/m3Ethylbenzene 70-130
10225.024.6µg/m34-Ethyltoluene 70-130
93.235.738.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130
95.119.520.5µg/m3Heptane 70-130
99.417.517.6µg/m3n-Hexane 70-130
99.020.320.5µg/m34-Methyl-2-Pentanone 70-130
99.417.317.4µg/m3Methylene Chloride 70-130
10828.326.2µg/m3Naphthalene 70-130
Page 2 of 4Date:03/25/2021 01:38 PM
Page 10 of 14
Quality Control Data
21-071-0022Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
BCP.126
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V2227QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V2224
LCS-V2224Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
1059.088.61µg/m3Propene 70-130
95.320.321.3µg/m3Styrene 70-130
85.829.133.9µg/m3Tetrachloroethene 70-130
86.116.218.8µg/m3Toluene 70-130
82.822.326.9µg/m3Trichloroethene 70-130
88.224.828.1µg/m3Trichlorofluoromethane 70-130
10325.424.6µg/m31,2,4-Trimethylbenzene 70-130
10124.924.6µg/m31,3,5-Trimethylbenzene 70-130
95.312.212.8µg/m3Vinyl Chloride 70-130
95.320.721.7µg/m3o-Xylene 70-130
97.642.443.4µg/m3m,p-Xylene 70-130
1014-Bromofluorobenzene (S)70-130
Page 3 of 4Date:03/25/2021 01:38 PM
Page 11 of 14
Quality Control Data
21-071-0022Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
BCP.126
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V2237QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V2233
Associated Lab Samples: 94615, 94616
LRB-V2233 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
03/16/21 12:011.470.295<0.295µg/m3Methyl Ethyl Ketone (MEK)
03/16/21 12:014-Bromofluorobenzene (S)90.7 70-130
LCS-V2233Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10515.414.7µg/m3Methyl Ethyl Ketone (MEK)70-130
98.64-Bromofluorobenzene (S)70-130
Page 4 of 4Date:03/25/2021 01:38 PM
Page 12 of 14
Fed Ex
UPS
US Postal
Client
Lab
Courier
Other :
Shipment Receipt Form
Customer Number:
Customer Name:
Report Number:21-071-0022
Hart & Hickman (Charlotte)
01102
Shipping Method
Shipping container/cooler uncompromised?
Thermometer ID:-
Chain of Custody (COC) present?Yes No
Yes No Not Present
Yes No Not Present
Yes No
COC agrees with sample label(s)? Yes No
COC properly completed
Samples in proper containers?
Sample containers intact?
Sufficient sample volume for indicated test(s)?
All samples received within holding time?
Cooler temperature in compliance?
Yes No
Yes No
Yes No
Yes No
Yes No
Yes NoCooler/Samples arrived at the laboratory on ice.
Samples were considered acceptable as cooling
process had begun.
Yes No
Yes No N/A
Yes No N/A
Yes No N/ASoil VOA method 5035 – compliance criteria met
Water - Sample containers properly preserved
Water - VOA vials free of headspace Yes No N/A
Trip Blanks received with VOAs
Low concentration EnCore samplers (48 hr)
High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)
High concentration container (48 hr)
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Number of coolers/boxes received
Yes No
1
Signature:Talon J Yelton Date & Time:03/12/2021 13:29:17
Special precautions or instructions included?
Comments:
Page 13 of 14

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

3/25/2021
Hart & Hickman (Charlotte) Alexis McKenzie
2923 South Tryon St. Ste 100 Charlotte, NC, 28203
Ref: Analytical Testing
Lab Report Number: 21-071-0030 Client Project Description: BCP.126
Dear Alexis McKenzie:
Waypoint Analytical, LLC (Charlotte) received sample(s) on 3/12/2021 for the analyses presented in the
following report.
The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method.
The analytical data has been validated using standard quality control measures performed as required by the
analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136
Method Update Rule May 2012) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time.
Refer to sample analysis time for confirmation of holding time compliance.
The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to
the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely,
Angela D Overcash Senior Project Manager
Page 1 of 30
Certification Summary
Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC
State Program Lab ID Expiration Date
07/31/202137735State ProgramNorth Carolina
12/31/2021402State ProgramNorth Carolina
07/31/202199012State ProgramSouth Carolina
12/31/202099012State ProgramSouth Carolina
Page 1 of 1 00016/21-071-0030
Page 2 of 30
Report Number:
Sample Summary Table
Client Project Description:
21-071-0030
BCP.126
Lab No Client Sample ID Matrix Date Collected Date Received
03/11/2021 09:21Air 94617 TMP-1 03/12/2021 12:40
03/11/2021 09:48Air 94618 MP-6 03/12/2021 12:40
03/11/2021 11:44Air 94619 MP-2 03/12/2021 12:40
03/11/2021 12:10Air 94620 MP-4 03/12/2021 12:40
03/11/2021 12:55Air 94621 MP-1 03/12/2021 12:40
03/11/2021 10:48Air 94622 TMP-2 03/12/2021 12:40
03/11/2021 10:48Air 94623 MP-DUP-1 03/12/2021 12:40
Page 3 of 30
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
21-071-0030
Report Limit
Project:BCP.126
V 94617TMP-1
65.4 03/16/2021 19:23TO-15 Acetone µg/m3 11.9
1570 03/19/2021 16:22TO-15 Methyl Ethyl Ketone (MEK)µg/m3 14.7
V 94618MP-6
56.3 03/16/2021 20:01TO-15 Acetone µg/m3 11.9
J0.834 03/18/2021 16:38TO-15 Benzene µg/m3 0.160
76.4 03/18/2021 16:38TO-15 Cyclohexane µg/m3 0.861
2.81 03/18/2021 16:38TO-15 Dichlorodifluoromethane µg/m3 0.410
5.19 03/18/2021 16:38TO-15 Ethylbenzene µg/m3 0.187
J1.47 03/18/2021 16:38TO-15 4-Ethyltoluene µg/m3 0.266
20.8 03/18/2021 16:38TO-15 Heptane µg/m3 0.193
5.90 03/18/2021 16:38TO-15 n-Hexane µg/m3 0.254
680 03/16/2021 20:01TO-15 Methyl Ethyl Ketone (MEK)µg/m3 5.90
5.76 03/18/2021 16:38TO-15 4-Methyl-2-Pentanone µg/m3 0.254
3.58 03/18/2021 16:38TO-15 Methylene Chloride µg/m3 0.383
8.93 03/18/2021 16:38TO-15 Styrene µg/m3 0.149
10.7 03/18/2021 16:38TO-15 Toluene µg/m3 0.754
6.40 03/18/2021 16:38TO-15 1,2,4-Trimethylbenzene µg/m3 0.295
J2.08 03/18/2021 16:38TO-15 1,3,5-Trimethylbenzene µg/m3 0.261
4.59 03/18/2021 16:38TO-15 o-Xylene µg/m3 0.182
6.80 03/18/2021 16:38TO-15 m,p-Xylene µg/m3 0.384
V 94619MP-2
163 03/16/2021 20:39TO-15 Acetone µg/m3 11.9
J0.827 03/18/2021 17:31TO-15 Benzene µg/m3 0.160
7.75 03/18/2021 17:31TO-15 Cyclohexane µg/m3 0.861
3.33 03/18/2021 17:31TO-15 Dichlorodifluoromethane µg/m3 0.410
3.16 03/18/2021 17:31TO-15 Ethylbenzene µg/m3 0.187
J1.01 03/18/2021 17:31TO-15 4-Ethyltoluene µg/m3 0.266
4.26 03/18/2021 17:31TO-15 Heptane µg/m3 0.193
578 03/16/2021 20:39TO-15 Methyl Ethyl Ketone (MEK)µg/m3 5.90
8.16 03/18/2021 17:31TO-15 4-Methyl-2-Pentanone µg/m3 0.254
4.58 03/18/2021 17:31TO-15 Methylene Chloride µg/m3 0.383
2.80 03/18/2021 17:31TO-15 Styrene µg/m3 0.149
20.4 03/18/2021 17:31TO-15 Toluene µg/m3 0.754
4.25 03/18/2021 17:31TO-15 1,2,4-Trimethylbenzene µg/m3 0.295
J1.16 03/18/2021 17:31TO-15 1,3,5-Trimethylbenzene µg/m3 0.261
4.13 03/18/2021 17:31TO-15 o-Xylene µg/m3 0.182
Page 4 of 30
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
21-071-0030
Report Limit
Project:BCP.126
V 94619MP-2
9.96 03/18/2021 17:31TO-15 m,p-Xylene µg/m3 0.384
V 94620MP-4
102 03/16/2021 21:17TO-15 Acetone µg/m3 11.9
J0.719 03/18/2021 15:47TO-15 Benzene µg/m3 0.160
28.5 03/18/2021 15:47TO-15 Cyclohexane µg/m3 0.861
2.87 03/18/2021 15:47TO-15 Dichlorodifluoromethane µg/m3 0.410
J2.00 03/18/2021 15:47TO-15 Ethylbenzene µg/m3 0.187
J1.01 03/18/2021 15:47TO-15 4-Ethyltoluene µg/m3 0.266
6.93 03/18/2021 15:47TO-15 Heptane µg/m3 0.193
400 03/16/2021 21:17TO-15 Methyl Ethyl Ketone (MEK)µg/m3 5.90
11.6 03/18/2021 15:47TO-15 4-Methyl-2-Pentanone µg/m3 0.254
4.79 03/18/2021 15:47TO-15 Methylene Chloride µg/m3 0.383
J1.09 03/18/2021 15:47TO-15 Naphthalene µg/m3 0.386
15.4 03/18/2021 15:47TO-15 Toluene µg/m3 0.754
4.79 03/18/2021 15:47TO-15 1,2,4-Trimethylbenzene µg/m3 0.295
J1.53 03/18/2021 15:47TO-15 1,3,5-Trimethylbenzene µg/m3 0.261
3.81 03/18/2021 15:47TO-15 o-Xylene µg/m3 0.182
8.13 03/18/2021 15:47TO-15 m,p-Xylene µg/m3 0.384
V 94621MP-1
281 03/16/2021 21:56TO-15 Acetone µg/m3 11.9
4580 03/22/2021 12:13TO-15 Methyl Ethyl Ketone (MEK)µg/m3 36.8
V 94622TMP-2
63.0 03/16/2021 22:34TO-15 Acetone µg/m3 11.9
2050 03/19/2021 16:59TO-15 Methyl Ethyl Ketone (MEK)µg/m3 14.7
J29.6 03/16/2021 22:34TO-15 Toluene µg/m3 15.1
V 94623MP-DUP-1
74.9 03/16/2021 23:12TO-15 Acetone µg/m3 11.9
952 03/19/2021 17:37TO-15 Methyl Ethyl Ketone (MEK)µg/m3 14.7
J31.4 03/16/2021 23:12TO-15 Toluene µg/m3 15.1
Page 5 of 30
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0030
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexis McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Report Date : 03/25/2021
Sample ID :
Lab No :
Sampled:TMP-1
94617 Matrix:
3/11/2021 9:21
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2225 03/16/21 10:00 V2232 03/16/21 10:00
65.4 µg/m3 11.9 47.6Acetone 20 03/16/21 19:23 V2229CBM
<3.19 µg/m3 3.19 31.9Benzene 20 03/16/21 19:23 V2229CBM
<5.09 µg/m3 5.09 67.0Bromodichloromethane 20 03/16/21 19:23 V2229CBM
<31.2 µg/m3 31.2 125Carbon Disulfide 20 03/16/21 19:23 V2229CBM
<5.27 µg/m3 5.27 48.8Chloroform 20 03/16/21 19:23 V2229CBM
<17.2 µg/m3 17.2 68.8Cyclohexane 20 03/16/21 19:23 V2229CBM
<4.33 µg/m3 4.33 60.11,3-Dichlorobenzene 20 03/16/21 19:23 V2229CBM
<8.20 µg/m3 8.20 49.4Dichlorodifluoromethane 20 03/16/21 19:23 V2229CBM
<4.37 µg/m3 4.37 40.5
1,2-Dichloroethane 20 03/16/21 19:23 V2229CBM
<10.3 µg/m3 10.3 39.6cis-1,2-Dichloroethene 20 03/16/21 19:23 V2229CBM
<9.50 µg/m3 9.50 39.6trans-1,2-Dichloroethene 20 03/16/21 19:23 V2229CBM
<3.73 µg/m3 3.73 43.4Ethylbenzene 20 03/16/21 19:23 V2229CBM
<5.31 µg/m3 5.31 49.24-Ethyltoluene 20 03/16/21 19:23 V2229CBM
<10.6 µg/m3 10.6 76.61,1,2-Trichloro-1,2,2-trifluoroethane 20 03/16/21 19:23 V2229CBM
<3.85 µg/m3 3.85 41.0Heptane 20 03/16/21 19:23 V2229CBM
<5.07 µg/m3 5.07 35.2
n-Hexane 20 03/16/21 19:23 V2229CBM
1570 µg/m3 14.7 73.7Methyl Ethyl Ketone (MEK)50 03/19/21 16:22 V2236CBM
<5.08 µg/m3 5.08 41.04-Methyl-2-Pentanone 20 03/16/21 19:23 V2229CBM
<7.63 µg/m3 7.63 34.7Methylene Chloride 20 03/16/21 19:23 V2229CBM
<7.72 µg/m3 7.72 52.4Naphthalene 20 03/16/21 19:23 V2229CBM
<2.79 µg/m3 2.79 17.2Propene 20 03/16/21 19:23 V2229CBM
<2.98 µg/m3 2.98 42.6Styrene 20 03/16/21 19:23 V2229CBM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 6 of 30
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0030
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexis McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Report Date : 03/25/2021
Sample ID :
Lab No :
Sampled:TMP-1
94617 Matrix:
3/11/2021 9:21
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2225 03/16/21 10:00 V2232 03/16/21 10:00
<8.81 µg/m3 8.81 67.8Tetrachloroethene 20 03/16/21 19:23 V2229CBM
<15.1 µg/m3 15.1 37.7Toluene 20 03/16/21 19:23 V2229CBM
<5.48 µg/m3 5.48 43.0Trichloroethene 20 03/16/21 19:23 V2229CBM
<8.66 µg/m3 8.66 56.2Trichlorofluoromethane 20 03/16/21 19:23 V2229CBM
<5.90 µg/m3 5.90 49.21,2,4-Trimethylbenzene 20 03/16/21 19:23 V2229CBM
<5.21 µg/m3 5.21 49.21,3,5-Trimethylbenzene 20 03/16/21 19:23 V2229CBM
<5.63 µg/m3 5.63 25.6Vinyl Chloride 20 03/16/21 19:23 V2229CBM
<3.65 µg/m3 3.65 43.4o-Xylene 20 03/16/21 19:23 V2229CBM
<7.68 µg/m3 7.68 113
m,p-Xylene 20 03/16/21 19:23 V2229CBM
Surrogate: 4-Bromofluorobenzene 92.7 Limits: 70-130%03/16/21 19:2320 CBM V2229
Surrogate: 4-Bromofluorobenzene 89.7 Limits: 70-130%03/19/21 16:2250 CBM V2236
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 7 of 30
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0030
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexis McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Report Date : 03/25/2021
Sample ID :
Lab No :
Sampled:MP-6
94618 Matrix:
3/11/2021 9:48
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2224 03/16/21 10:00 V2233 03/16/21 10:00
56.3 µg/m3 11.9 47.6Acetone 20 03/16/21 20:01 V2237CBM
0.834 J µg/m3 0.160 1.60Benzene 1 03/18/21 16:38 V2227CBM
<0.255 µg/m3 0.255 3.35Bromodichloromethane 1 03/18/21 16:38 V2227CBM
<1.56 µg/m3 1.56 6.23Carbon Disulfide 1 03/18/21 16:38 V2227CBM
<0.264 µg/m3 0.264 2.44Chloroform 1 03/18/21 16:38 V2227CBM
76.4 µg/m3 0.861 3.44Cyclohexane 1 03/18/21 16:38 V2227CBM
<0.217 µg/m3 0.217 3.011,3-Dichlorobenzene 1 03/18/21 16:38 V2227CBM
2.81 µg/m3 0.410 2.47Dichlorodifluoromethane 1 03/18/21 16:38 V2227CBM
<0.219 µg/m3 0.219 2.02
1,2-Dichloroethane 1 03/18/21 16:38 V2227CBM
<0.515 µg/m3 0.515 1.98cis-1,2-Dichloroethene 1 03/18/21 16:38 V2227CBM
<0.476 µg/m3 0.476 1.98trans-1,2-Dichloroethene 1 03/18/21 16:38 V2227CBM
5.19 µg/m3 0.187 2.17Ethylbenzene 1 03/18/21 16:38 V2227CBM
1.47 J µg/m3 0.266 2.464-Ethyltoluene 1 03/18/21 16:38 V2227CBM
<0.529 µg/m3 0.529 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 03/18/21 16:38 V2227CBM
20.8 µg/m3 0.193 2.05Heptane 1 03/18/21 16:38 V2227CBM
5.90 µg/m3 0.254 1.76
n-Hexane 1 03/18/21 16:38 V2227CBM
680 µg/m3 5.90 29.5Methyl Ethyl Ketone (MEK)20 03/16/21 20:01 V2237CBM
5.76 µg/m3 0.254 2.054-Methyl-2-Pentanone 1 03/18/21 16:38 V2227CBM
3.58 µg/m3 0.383 1.74Methylene Chloride 1 03/18/21 16:38 V2227CBM
<0.386 µg/m3 0.386 2.62Naphthalene 1 03/18/21 16:38 V2227CBM
<0.139 µg/m3 0.139 0.861Propene 1 03/18/21 16:38 V2227CBM
8.93 µg/m3 0.149 2.13Styrene 1 03/18/21 16:38 V2227CBM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 8 of 30
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0030
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexis McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Report Date : 03/25/2021
Sample ID :
Lab No :
Sampled:MP-6
94618 Matrix:
3/11/2021 9:48
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2224 03/16/21 10:00 V2233 03/16/21 10:00
<0.441 µg/m3 0.441 3.39Tetrachloroethene 1 03/18/21 16:38 V2227CBM
10.7 µg/m3 0.754 1.88Toluene 1 03/18/21 16:38 V2227CBM
<0.274 µg/m3 0.274 2.15Trichloroethene 1 03/18/21 16:38 V2227CBM
<0.433 µg/m3 0.433 2.81Trichlorofluoromethane 1 03/18/21 16:38 V2227CBM
6.40 µg/m3 0.295 2.461,2,4-Trimethylbenzene 1 03/18/21 16:38 V2227CBM
2.08 J µg/m3 0.261 2.461,3,5-Trimethylbenzene 1 03/18/21 16:38 V2227CBM
<0.282 µg/m3 0.282 1.28Vinyl Chloride 1 03/18/21 16:38 V2227CBM
4.59 µg/m3 0.182 2.17o-Xylene 1 03/18/21 16:38 V2227CBM
6.80 µg/m3 0.384 5.65
m,p-Xylene 1 03/18/21 16:38 V2227CBM
Surrogate: 4-Bromofluorobenzene 98.6 Limits: 70-130%03/18/21 16:381 CBM V2227
Surrogate: 4-Bromofluorobenzene 93.6 Limits: 70-130%03/16/21 20:0120 CBM V2237
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 9 of 30
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0030
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexis McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Report Date : 03/25/2021
Sample ID :
Lab No :
Sampled:MP-2
94619 Matrix:
3/11/2021 11:44
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2224 03/16/21 10:00 V2233 03/16/21 10:00
163 µg/m3 11.9 47.6Acetone 20 03/16/21 20:39 V2237CBM
0.827 J µg/m3 0.160 1.60Benzene 1 03/18/21 17:31 V2227CBM
<0.255 µg/m3 0.255 3.35Bromodichloromethane 1 03/18/21 17:31 V2227CBM
<1.56 µg/m3 1.56 6.23Carbon Disulfide 1 03/18/21 17:31 V2227CBM
<0.264 µg/m3 0.264 2.44Chloroform 1 03/18/21 17:31 V2227CBM
7.75 µg/m3 0.861 3.44Cyclohexane 1 03/18/21 17:31 V2227CBM
<0.217 µg/m3 0.217 3.011,3-Dichlorobenzene 1 03/18/21 17:31 V2227CBM
3.33 µg/m3 0.410 2.47Dichlorodifluoromethane 1 03/18/21 17:31 V2227CBM
<0.219 µg/m3 0.219 2.02
1,2-Dichloroethane 1 03/18/21 17:31 V2227CBM
<0.515 µg/m3 0.515 1.98cis-1,2-Dichloroethene 1 03/18/21 17:31 V2227CBM
<0.476 µg/m3 0.476 1.98trans-1,2-Dichloroethene 1 03/18/21 17:31 V2227CBM
3.16 µg/m3 0.187 2.17Ethylbenzene 1 03/18/21 17:31 V2227CBM
1.01 J µg/m3 0.266 2.464-Ethyltoluene 1 03/18/21 17:31 V2227CBM
<0.529 µg/m3 0.529 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 03/18/21 17:31 V2227CBM
4.26 µg/m3 0.193 2.05Heptane 1 03/18/21 17:31 V2227CBM
<0.254 µg/m3 0.254 1.76
n-Hexane 1 03/18/21 17:31 V2227CBM
578 µg/m3 5.90 29.5Methyl Ethyl Ketone (MEK)20 03/16/21 20:39 V2237CBM
8.16 µg/m3 0.254 2.054-Methyl-2-Pentanone 1 03/18/21 17:31 V2227CBM
4.58 µg/m3 0.383 1.74Methylene Chloride 1 03/18/21 17:31 V2227CBM
<0.386 µg/m3 0.386 2.62Naphthalene 1 03/18/21 17:31 V2227CBM
<0.139 µg/m3 0.139 0.861Propene 1 03/18/21 17:31 V2227CBM
2.80 µg/m3 0.149 2.13Styrene 1 03/18/21 17:31 V2227CBM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 10 of 30
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0030
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexis McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Report Date : 03/25/2021
Sample ID :
Lab No :
Sampled:MP-2
94619 Matrix:
3/11/2021 11:44
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2224 03/16/21 10:00 V2233 03/16/21 10:00
<0.441 µg/m3 0.441 3.39Tetrachloroethene 1 03/18/21 17:31 V2227CBM
20.4 µg/m3 0.754 1.88Toluene 1 03/18/21 17:31 V2227CBM
<0.274 µg/m3 0.274 2.15Trichloroethene 1 03/18/21 17:31 V2227CBM
<0.433 µg/m3 0.433 2.81Trichlorofluoromethane 1 03/18/21 17:31 V2227CBM
4.25 µg/m3 0.295 2.461,2,4-Trimethylbenzene 1 03/18/21 17:31 V2227CBM
1.16 J µg/m3 0.261 2.461,3,5-Trimethylbenzene 1 03/18/21 17:31 V2227CBM
<0.282 µg/m3 0.282 1.28Vinyl Chloride 1 03/18/21 17:31 V2227CBM
4.13 µg/m3 0.182 2.17o-Xylene 1 03/18/21 17:31 V2227CBM
9.96 µg/m3 0.384 5.65
m,p-Xylene 1 03/18/21 17:31 V2227CBM
Surrogate: 4-Bromofluorobenzene 98.9 Limits: 70-130%03/18/21 17:311 CBM V2227
Surrogate: 4-Bromofluorobenzene 91.9 Limits: 70-130%03/16/21 20:3920 CBM V2237
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 11 of 30
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0030
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexis McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Report Date : 03/25/2021
Sample ID :
Lab No :
Sampled:MP-4
94620 Matrix:
3/11/2021 12:10
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2224 03/16/21 10:00 V2233 03/16/21 10:00
102 µg/m3 11.9 47.6Acetone 20 03/16/21 21:17 V2237CBM
0.719 J µg/m3 0.160 1.60Benzene 1 03/18/21 15:47 V2227CBM
<0.255 µg/m3 0.255 3.35Bromodichloromethane 1 03/18/21 15:47 V2227CBM
<1.56 µg/m3 1.56 6.23Carbon Disulfide 1 03/18/21 15:47 V2227CBM
<0.264 µg/m3 0.264 2.44Chloroform 1 03/18/21 15:47 V2227CBM
28.5 µg/m3 0.861 3.44Cyclohexane 1 03/18/21 15:47 V2227CBM
<0.217 µg/m3 0.217 3.011,3-Dichlorobenzene 1 03/18/21 15:47 V2227CBM
2.87 µg/m3 0.410 2.47Dichlorodifluoromethane 1 03/18/21 15:47 V2227CBM
<0.219 µg/m3 0.219 2.02
1,2-Dichloroethane 1 03/18/21 15:47 V2227CBM
<0.515 µg/m3 0.515 1.98cis-1,2-Dichloroethene 1 03/18/21 15:47 V2227CBM
<0.476 µg/m3 0.476 1.98trans-1,2-Dichloroethene 1 03/18/21 15:47 V2227CBM
2.00 J µg/m3 0.187 2.17Ethylbenzene 1 03/18/21 15:47 V2227CBM
1.01 J µg/m3 0.266 2.464-Ethyltoluene 1 03/18/21 15:47 V2227CBM
<0.529 µg/m3 0.529 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 03/18/21 15:47 V2227CBM
6.93 µg/m3 0.193 2.05Heptane 1 03/18/21 15:47 V2227CBM
<0.254 µg/m3 0.254 1.76
n-Hexane 1 03/18/21 15:47 V2227CBM
400 µg/m3 5.90 29.5Methyl Ethyl Ketone (MEK)20 03/16/21 21:17 V2237CBM
11.6 µg/m3 0.254 2.054-Methyl-2-Pentanone 1 03/18/21 15:47 V2227CBM
4.79 µg/m3 0.383 1.74Methylene Chloride 1 03/18/21 15:47 V2227CBM
1.09 J µg/m3 0.386 2.62Naphthalene 1 03/18/21 15:47 V2227CBM
<0.139 µg/m3 0.139 0.861Propene 1 03/18/21 15:47 V2227CBM
<0.149 µg/m3 0.149 2.13Styrene 1 03/18/21 15:47 V2227CBM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 12 of 30
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0030
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexis McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Report Date : 03/25/2021
Sample ID :
Lab No :
Sampled:MP-4
94620 Matrix:
3/11/2021 12:10
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2224 03/16/21 10:00 V2233 03/16/21 10:00
<0.441 µg/m3 0.441 3.39Tetrachloroethene 1 03/18/21 15:47 V2227CBM
15.4 µg/m3 0.754 1.88Toluene 1 03/18/21 15:47 V2227CBM
<0.274 µg/m3 0.274 2.15Trichloroethene 1 03/18/21 15:47 V2227CBM
<0.433 µg/m3 0.433 2.81Trichlorofluoromethane 1 03/18/21 15:47 V2227CBM
4.79 µg/m3 0.295 2.461,2,4-Trimethylbenzene 1 03/18/21 15:47 V2227CBM
1.53 J µg/m3 0.261 2.461,3,5-Trimethylbenzene 1 03/18/21 15:47 V2227CBM
<0.282 µg/m3 0.282 1.28Vinyl Chloride 1 03/18/21 15:47 V2227CBM
3.81 µg/m3 0.182 2.17o-Xylene 1 03/18/21 15:47 V2227CBM
8.13 µg/m3 0.384 5.65
m,p-Xylene 1 03/18/21 15:47 V2227CBM
Surrogate: 4-Bromofluorobenzene 97.8 Limits: 70-130%03/18/21 15:471 CBM V2227
Surrogate: 4-Bromofluorobenzene 92.5 Limits: 70-130%03/16/21 21:1720 CBM V2237
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 13 of 30
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0030
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexis McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Report Date : 03/25/2021
Sample ID :
Lab No :
Sampled:MP-1
94621 Matrix:
3/11/2021 12:55
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2225 03/16/21 10:00 V2232 03/16/21 10:00
281 µg/m3 11.9 47.6Acetone 20 03/16/21 21:56 V2229CBM
<3.19 µg/m3 3.19 31.9Benzene 20 03/16/21 21:56 V2229CBM
<5.09 µg/m3 5.09 67.0Bromodichloromethane 20 03/16/21 21:56 V2229CBM
<31.2 µg/m3 31.2 125Carbon Disulfide 20 03/16/21 21:56 V2229CBM
<5.27 µg/m3 5.27 48.8Chloroform 20 03/16/21 21:56 V2229CBM
<17.2 µg/m3 17.2 68.8Cyclohexane 20 03/16/21 21:56 V2229CBM
<4.33 µg/m3 4.33 60.11,3-Dichlorobenzene 20 03/16/21 21:56 V2229CBM
<8.20 µg/m3 8.20 49.4Dichlorodifluoromethane 20 03/16/21 21:56 V2229CBM
<4.37 µg/m3 4.37 40.5
1,2-Dichloroethane 20 03/16/21 21:56 V2229CBM
<10.3 µg/m3 10.3 39.6cis-1,2-Dichloroethene 20 03/16/21 21:56 V2229CBM
<9.50 µg/m3 9.50 39.6trans-1,2-Dichloroethene 20 03/16/21 21:56 V2229CBM
<3.73 µg/m3 3.73 43.4Ethylbenzene 20 03/16/21 21:56 V2229CBM
<5.31 µg/m3 5.31 49.24-Ethyltoluene 20 03/16/21 21:56 V2229CBM
<10.6 µg/m3 10.6 76.61,1,2-Trichloro-1,2,2-trifluoroethane 20 03/16/21 21:56 V2229CBM
<3.85 µg/m3 3.85 41.0Heptane 20 03/16/21 21:56 V2229CBM
<5.07 µg/m3 5.07 35.2
n-Hexane 20 03/16/21 21:56 V2229CBM
4580 µg/m3 36.8 184Methyl Ethyl Ketone (MEK)125 03/22/21 12:13 V2236CBM
<5.08 µg/m3 5.08 41.04-Methyl-2-Pentanone 20 03/16/21 21:56 V2229CBM
<7.63 µg/m3 7.63 34.7Methylene Chloride 20 03/16/21 21:56 V2229CBM
<7.72 µg/m3 7.72 52.4Naphthalene 20 03/16/21 21:56 V2229CBM
<2.79 µg/m3 2.79 17.2Propene 20 03/16/21 21:56 V2229CBM
<2.98 µg/m3 2.98 42.6Styrene 20 03/16/21 21:56 V2229CBM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 14 of 30
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0030
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexis McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Report Date : 03/25/2021
Sample ID :
Lab No :
Sampled:MP-1
94621 Matrix:
3/11/2021 12:55
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2225 03/16/21 10:00 V2232 03/16/21 10:00
<8.81 µg/m3 8.81 67.8Tetrachloroethene 20 03/16/21 21:56 V2229CBM
<15.1 µg/m3 15.1 37.7Toluene 20 03/16/21 21:56 V2229CBM
<5.48 µg/m3 5.48 43.0Trichloroethene 20 03/16/21 21:56 V2229CBM
<8.66 µg/m3 8.66 56.2Trichlorofluoromethane 20 03/16/21 21:56 V2229CBM
<5.90 µg/m3 5.90 49.21,2,4-Trimethylbenzene 20 03/16/21 21:56 V2229CBM
<5.21 µg/m3 5.21 49.21,3,5-Trimethylbenzene 20 03/16/21 21:56 V2229CBM
<5.63 µg/m3 5.63 25.6Vinyl Chloride 20 03/16/21 21:56 V2229CBM
<3.65 µg/m3 3.65 43.4o-Xylene 20 03/16/21 21:56 V2229CBM
<7.68 µg/m3 7.68 113
m,p-Xylene 20 03/16/21 21:56 V2229CBM
Surrogate: 4-Bromofluorobenzene 86.0 Limits: 70-130%03/22/21 12:13125 CBM V2236
Surrogate: 4-Bromofluorobenzene 92.7 Limits: 70-130%03/16/21 21:5620 CBM V2229
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 15 of 30
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0030
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexis McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Report Date : 03/25/2021
Sample ID :
Lab No :
Sampled:TMP-2
94622 Matrix:
3/11/2021 10:48
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2225 03/16/21 10:00 V2232 03/16/21 10:00
63.0 µg/m3 11.9 47.6Acetone 20 03/16/21 22:34 V2229CBM
<3.19 µg/m3 3.19 31.9Benzene 20 03/16/21 22:34 V2229CBM
<5.09 µg/m3 5.09 67.0Bromodichloromethane 20 03/16/21 22:34 V2229CBM
<31.2 µg/m3 31.2 125Carbon Disulfide 20 03/16/21 22:34 V2229CBM
<5.27 µg/m3 5.27 48.8Chloroform 20 03/16/21 22:34 V2229CBM
<17.2 µg/m3 17.2 68.8Cyclohexane 20 03/16/21 22:34 V2229CBM
<4.33 µg/m3 4.33 60.11,3-Dichlorobenzene 20 03/16/21 22:34 V2229CBM
<8.20 µg/m3 8.20 49.4Dichlorodifluoromethane 20 03/16/21 22:34 V2229CBM
<4.37 µg/m3 4.37 40.5
1,2-Dichloroethane 20 03/16/21 22:34 V2229CBM
<10.3 µg/m3 10.3 39.6cis-1,2-Dichloroethene 20 03/16/21 22:34 V2229CBM
<9.50 µg/m3 9.50 39.6trans-1,2-Dichloroethene 20 03/16/21 22:34 V2229CBM
<3.73 µg/m3 3.73 43.4Ethylbenzene 20 03/16/21 22:34 V2229CBM
<5.31 µg/m3 5.31 49.24-Ethyltoluene 20 03/16/21 22:34 V2229CBM
<10.6 µg/m3 10.6 76.61,1,2-Trichloro-1,2,2-trifluoroethane 20 03/16/21 22:34 V2229CBM
<3.85 µg/m3 3.85 41.0Heptane 20 03/16/21 22:34 V2229CBM
<5.07 µg/m3 5.07 35.2
n-Hexane 20 03/16/21 22:34 V2229CBM
2050 µg/m3 14.7 73.7Methyl Ethyl Ketone (MEK)50 03/19/21 16:59 V2236CBM
<5.08 µg/m3 5.08 41.04-Methyl-2-Pentanone 20 03/16/21 22:34 V2229CBM
<7.63 µg/m3 7.63 34.7Methylene Chloride 20 03/16/21 22:34 V2229CBM
<7.72 µg/m3 7.72 52.4Naphthalene 20 03/16/21 22:34 V2229CBM
<2.79 µg/m3 2.79 17.2Propene 20 03/16/21 22:34 V2229CBM
<2.98 µg/m3 2.98 42.6Styrene 20 03/16/21 22:34 V2229CBM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 16 of 30
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0030
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexis McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Report Date : 03/25/2021
Sample ID :
Lab No :
Sampled:TMP-2
94622 Matrix:
3/11/2021 10:48
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2225 03/16/21 10:00 V2232 03/16/21 10:00
<8.81 µg/m3 8.81 67.8Tetrachloroethene 20 03/16/21 22:34 V2229CBM
29.6 J µg/m3 15.1 37.7Toluene 20 03/16/21 22:34 V2229CBM
<5.48 µg/m3 5.48 43.0Trichloroethene 20 03/16/21 22:34 V2229CBM
<8.66 µg/m3 8.66 56.2Trichlorofluoromethane 20 03/16/21 22:34 V2229CBM
<5.90 µg/m3 5.90 49.21,2,4-Trimethylbenzene 20 03/16/21 22:34 V2229CBM
<5.21 µg/m3 5.21 49.21,3,5-Trimethylbenzene 20 03/16/21 22:34 V2229CBM
<5.63 µg/m3 5.63 25.6Vinyl Chloride 20 03/16/21 22:34 V2229CBM
<3.65 µg/m3 3.65 43.4o-Xylene 20 03/16/21 22:34 V2229CBM
<7.68 µg/m3 7.68 113
m,p-Xylene 20 03/16/21 22:34 V2229CBM
Surrogate: 4-Bromofluorobenzene 93.3 Limits: 70-130%03/16/21 22:3420 CBM V2229
Surrogate: 4-Bromofluorobenzene 91.3 Limits: 70-130%03/19/21 16:5950 CBM V2236
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 17 of 30
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0030
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexis McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Report Date : 03/25/2021
Sample ID :
Lab No :
Sampled:MP-DUP-1
94623 Matrix:
3/11/2021 10:48
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2225 03/16/21 10:00 V2232 03/16/21 10:00
74.9 µg/m3 11.9 47.6Acetone 20 03/16/21 23:12 V2229CBM
<3.19 µg/m3 3.19 31.9Benzene 20 03/16/21 23:12 V2229CBM
<5.09 µg/m3 5.09 67.0Bromodichloromethane 20 03/16/21 23:12 V2229CBM
<31.2 µg/m3 31.2 125Carbon Disulfide 20 03/16/21 23:12 V2229CBM
<5.27 µg/m3 5.27 48.8Chloroform 20 03/16/21 23:12 V2229CBM
<17.2 µg/m3 17.2 68.8Cyclohexane 20 03/16/21 23:12 V2229CBM
<4.33 µg/m3 4.33 60.11,3-Dichlorobenzene 20 03/16/21 23:12 V2229CBM
<8.20 µg/m3 8.20 49.4Dichlorodifluoromethane 20 03/16/21 23:12 V2229CBM
<4.37 µg/m3 4.37 40.5
1,2-Dichloroethane 20 03/16/21 23:12 V2229CBM
<10.3 µg/m3 10.3 39.6cis-1,2-Dichloroethene 20 03/16/21 23:12 V2229CBM
<9.50 µg/m3 9.50 39.6trans-1,2-Dichloroethene 20 03/16/21 23:12 V2229CBM
<3.73 µg/m3 3.73 43.4Ethylbenzene 20 03/16/21 23:12 V2229CBM
<5.31 µg/m3 5.31 49.24-Ethyltoluene 20 03/16/21 23:12 V2229CBM
<10.6 µg/m3 10.6 76.61,1,2-Trichloro-1,2,2-trifluoroethane 20 03/16/21 23:12 V2229CBM
<3.85 µg/m3 3.85 41.0Heptane 20 03/16/21 23:12 V2229CBM
<5.07 µg/m3 5.07 35.2
n-Hexane 20 03/16/21 23:12 V2229CBM
952 µg/m3 14.7 73.7Methyl Ethyl Ketone (MEK)50 03/19/21 17:37 V2236CBM
<5.08 µg/m3 5.08 41.04-Methyl-2-Pentanone 20 03/16/21 23:12 V2229CBM
<7.63 µg/m3 7.63 34.7Methylene Chloride 20 03/16/21 23:12 V2229CBM
<7.72 µg/m3 7.72 52.4Naphthalene 20 03/16/21 23:12 V2229CBM
<2.79 µg/m3 2.79 17.2Propene 20 03/16/21 23:12 V2229CBM
<2.98 µg/m3 2.98 42.6Styrene 20 03/16/21 23:12 V2229CBM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 18 of 30
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28203
21-071-0030
01102
Hart & Hickman (Charlotte)
2923 South Tryon St. Ste 100
Alexis McKenzie
Charlotte
Received : 03/12/2021
BCP.126
Report Date : 03/25/2021
Sample ID :
Lab No :
Sampled:MP-DUP-1
94623 Matrix:
3/11/2021 10:48
Air
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
TO-15 Prep
TO-15 Prep Batch(es):V2225 03/16/21 10:00 V2232 03/16/21 10:00
<8.81 µg/m3 8.81 67.8Tetrachloroethene 20 03/16/21 23:12 V2229CBM
31.4 J µg/m3 15.1 37.7Toluene 20 03/16/21 23:12 V2229CBM
<5.48 µg/m3 5.48 43.0Trichloroethene 20 03/16/21 23:12 V2229CBM
<8.66 µg/m3 8.66 56.2Trichlorofluoromethane 20 03/16/21 23:12 V2229CBM
<5.90 µg/m3 5.90 49.21,2,4-Trimethylbenzene 20 03/16/21 23:12 V2229CBM
<5.21 µg/m3 5.21 49.21,3,5-Trimethylbenzene 20 03/16/21 23:12 V2229CBM
<5.63 µg/m3 5.63 25.6Vinyl Chloride 20 03/16/21 23:12 V2229CBM
<3.65 µg/m3 3.65 43.4o-Xylene 20 03/16/21 23:12 V2229CBM
<7.68 µg/m3 7.68 113
m,p-Xylene 20 03/16/21 23:12 V2229CBM
Surrogate: 4-Bromofluorobenzene 92.5 Limits: 70-130%03/16/21 23:1220 CBM V2229
Surrogate: 4-Bromofluorobenzene 90.2 Limits: 70-130%03/19/21 17:3750 CBM V2236
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 19 of 30
Quality Control Data
21-071-0030Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
BCP.126
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V2227QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V2224
Associated Lab Samples: 94618, 94619, 94620
LRB-V2224 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
03/18/21 11:511.600.160<0.160µg/m3Benzene
03/18/21 11:513.350.255<0.255µg/m3Bromodichloromethane
03/18/21 11:516.231.56<1.56µg/m3Carbon Disulfide
03/18/21 11:512.440.264<0.264µg/m3Chloroform
03/18/21 11:513.440.861<0.861µg/m3Cyclohexane
03/18/21 11:513.010.217<0.217µg/m31,3-Dichlorobenzene
03/18/21 11:512.470.410<0.410µg/m3Dichlorodifluoromethane
03/18/21 11:512.020.219<0.219µg/m31,2-Dichloroethane
03/18/21 11:511.980.515<0.515µg/m3cis-1,2-Dichloroethene
03/18/21 11:511.980.476<0.476µg/m3trans-1,2-Dichloroethene
03/18/21 11:512.170.187<0.187µg/m3Ethylbenzene
03/18/21 11:512.460.266<0.266µg/m34-Ethyltoluene
03/18/21 11:513.830.529<0.529µg/m31,1,2-Trichloro-1,2,2-trifluoroethane
03/18/21 11:512.050.193<0.193µg/m3Heptane
03/18/21 11:511.760.254<0.254µg/m3n-Hexane
03/18/21 11:512.050.254<0.254µg/m34-Methyl-2-Pentanone
03/18/21 11:511.740.383<0.383µg/m3Methylene Chloride
03/18/21 11:512.620.386<0.386µg/m3Naphthalene
03/18/21 11:510.8610.139<0.139µg/m3Propene
03/18/21 11:512.130.149<0.149µg/m3Styrene
03/18/21 11:513.390.441<0.441µg/m3Tetrachloroethene
03/18/21 11:511.880.754<0.754µg/m3Toluene
03/18/21 11:512.150.274<0.274µg/m3Trichloroethene
03/18/21 11:512.810.433<0.433µg/m3Trichlorofluoromethane
03/18/21 11:512.460.295<0.295µg/m31,2,4-Trimethylbenzene
03/18/21 11:512.460.261<0.261µg/m31,3,5-Trimethylbenzene
03/18/21 11:511.280.282<0.282µg/m3Vinyl Chloride
Page 1 of 8Date:03/25/2021 01:40 PM
Page 20 of 30
Quality Control Data
21-071-0030Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
BCP.126
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V2227QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V2224
Associated Lab Samples: 94618, 94619, 94620
LRB-V2224 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
03/18/21 11:512.170.182<0.182µg/m3o-Xylene
03/18/21 11:515.650.384<0.384µg/m3m,p-Xylene
03/18/21 11:514-Bromofluorobenzene (S)91.6 70-130
LCS-V2224Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
86.813.916.0µg/m3Benzene 70-130
81.727.433.5µg/m3Bromodichloromethane 70-130
96.715.115.6µg/m3Carbon Disulfide 70-130
83.120.324.4µg/m3Chloroform 70-130
82.514.217.2µg/m3Cyclohexane 70-130
98.629.730.1µg/m31,3-Dichlorobenzene 70-130
88.621.924.7µg/m3Dichlorodifluoromethane 70-130
81.616.520.2µg/m31,2-Dichloroethane 70-130
94.918.819.8µg/m3cis-1,2-Dichloroethene 70-130
92.418.319.8µg/m3trans-1,2-Dichloroethene 70-130
95.320.721.7µg/m3Ethylbenzene 70-130
10225.024.6µg/m34-Ethyltoluene 70-130
93.235.738.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130
95.119.520.5µg/m3Heptane 70-130
99.417.517.6µg/m3n-Hexane 70-130
99.020.320.5µg/m34-Methyl-2-Pentanone 70-130
99.417.317.4µg/m3Methylene Chloride 70-130
10828.326.2µg/m3Naphthalene 70-130
1059.088.61µg/m3Propene 70-130
95.320.321.3µg/m3Styrene 70-130
Page 2 of 8Date:03/25/2021 01:40 PM
Page 21 of 30
Quality Control Data
21-071-0030Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
BCP.126
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V2227QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V2224
LCS-V2224Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
85.829.133.9µg/m3Tetrachloroethene 70-130
86.116.218.8µg/m3Toluene 70-130
82.822.326.9µg/m3Trichloroethene 70-130
88.224.828.1µg/m3Trichlorofluoromethane 70-130
10325.424.6µg/m31,2,4-Trimethylbenzene 70-130
10124.924.6µg/m31,3,5-Trimethylbenzene 70-130
95.312.212.8µg/m3Vinyl Chloride 70-130
95.320.721.7µg/m3o-Xylene 70-130
97.642.443.4µg/m3m,p-Xylene 70-130
1014-Bromofluorobenzene (S)70-130
Page 3 of 8Date:03/25/2021 01:40 PM
Page 22 of 30
Quality Control Data
21-071-0030Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
BCP.126
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V2229QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V2225
Associated Lab Samples: 94617, 94621, 94622, 94623
LRB-V2225 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
03/16/21 12:012.380.594<0.594µg/m3Acetone
03/16/21 12:011.600.160<0.160µg/m3Benzene
03/16/21 12:013.350.255<0.255µg/m3Bromodichloromethane
03/16/21 12:016.231.56<1.56µg/m3Carbon Disulfide
03/16/21 12:012.440.264<0.264µg/m3Chloroform
03/16/21 12:013.440.861<0.861µg/m3Cyclohexane
03/16/21 12:013.010.217<0.217µg/m31,3-Dichlorobenzene
03/16/21 12:012.470.410<0.410µg/m3Dichlorodifluoromethane
03/16/21 12:012.020.219<0.219µg/m31,2-Dichloroethane
03/16/21 12:011.980.515<0.515µg/m3cis-1,2-Dichloroethene
03/16/21 12:011.980.476<0.476µg/m3trans-1,2-Dichloroethene
03/16/21 12:012.170.187<0.187µg/m3Ethylbenzene
03/16/21 12:012.460.266<0.266µg/m34-Ethyltoluene
03/16/21 12:013.830.529<0.529µg/m31,1,2-Trichloro-1,2,2-trifluoroethane
03/16/21 12:012.050.193<0.193µg/m3Heptane
03/16/21 12:011.760.254<0.254µg/m3n-Hexane
03/16/21 12:012.050.254<0.254µg/m34-Methyl-2-Pentanone
03/16/21 12:011.740.383<0.383µg/m3Methylene Chloride
03/16/21 12:012.620.386<0.386µg/m3Naphthalene
03/16/21 12:010.8610.139<0.139µg/m3Propene
03/16/21 12:012.130.149<0.149µg/m3Styrene
03/16/21 12:013.390.441<0.441µg/m3Tetrachloroethene
03/16/21 12:011.880.754<0.754µg/m3Toluene
03/16/21 12:012.150.274<0.274µg/m3Trichloroethene
03/16/21 12:012.810.433<0.433µg/m3Trichlorofluoromethane
03/16/21 12:012.460.295<0.295µg/m31,2,4-Trimethylbenzene
03/16/21 12:012.460.261<0.261µg/m31,3,5-Trimethylbenzene
Page 4 of 8Date:03/25/2021 01:40 PM
Page 23 of 30
Quality Control Data
21-071-0030Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
BCP.126
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V2229QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V2225
Associated Lab Samples: 94617, 94621, 94622, 94623
LRB-V2225 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
03/16/21 12:011.280.282<0.282µg/m3Vinyl Chloride
03/16/21 12:012.170.182<0.182µg/m3o-Xylene
03/16/21 12:015.650.384<0.384µg/m3m,p-Xylene
03/16/21 12:014-Bromofluorobenzene (S)90.7 70-130
LCS-V2225Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
89.010.611.9µg/m3Acetone 70-130
80.612.916.0µg/m3Benzene 70-130
78.526.333.5µg/m3Bromodichloromethane 70-130
89.714.015.6µg/m3Carbon Disulfide 70-130
79.519.424.4µg/m3Chloroform 70-130
75.513.017.2µg/m3Cyclohexane 70-130
83.725.230.1µg/m31,3-Dichlorobenzene 70-130
74.018.324.7µg/m3Dichlorodifluoromethane 70-130
80.116.220.2µg/m31,2-Dichloroethane 70-130
93.918.619.8µg/m3cis-1,2-Dichloroethene 70-130
85.817.019.8µg/m3trans-1,2-Dichloroethene 70-130
88.019.121.7µg/m3Ethylbenzene 70-130
91.022.424.6µg/m34-Ethyltoluene 70-130
90.334.638.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130
86.817.820.5µg/m3Heptane 70-130
96.016.917.6µg/m3n-Hexane 70-130
90.718.620.5µg/m34-Methyl-2-Pentanone 70-130
89.615.617.4µg/m3Methylene Chloride 70-130
95.425.026.2µg/m3Naphthalene 70-130
Page 5 of 8Date:03/25/2021 01:40 PM
Page 24 of 30
Quality Control Data
21-071-0030Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
BCP.126
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V2229QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V2225
LCS-V2225Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
93.38.048.61µg/m3Propene 70-130
86.818.521.3µg/m3Styrene 70-130
77.526.333.9µg/m3Tetrachloroethene 70-130
79.214.918.8µg/m3Toluene 70-130
77.620.926.9µg/m3Trichloroethene 70-130
78.222.028.1µg/m3Trichlorofluoromethane 70-130
90.222.224.6µg/m31,2,4-Trimethylbenzene 70-130
91.422.524.6µg/m31,3,5-Trimethylbenzene 70-130
87.511.212.8µg/m3Vinyl Chloride 70-130
96.721.021.7µg/m3o-Xylene 70-130
90.039.143.4µg/m3m,p-Xylene 70-130
98.64-Bromofluorobenzene (S)70-130
Page 6 of 8Date:03/25/2021 01:40 PM
Page 25 of 30
Quality Control Data
21-071-0030Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
BCP.126
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V2236QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V2232
Associated Lab Samples: 94617, 94621, 94622, 94623
LRB-V2232 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
03/19/21 11:171.470.295<0.295µg/m3Methyl Ethyl Ketone (MEK)
03/19/21 11:174-Bromofluorobenzene (S)96.3 70-130
LCS-V2232Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
10515.514.7µg/m3Methyl Ethyl Ketone (MEK)70-130
1064-Bromofluorobenzene (S)70-130
Page 7 of 8Date:03/25/2021 01:40 PM
Page 26 of 30
Quality Control Data
21-071-0030Report No:
Project Description:
Client ID:Hart & Hickman (Charlotte)
BCP.126
QC Prep Batch Method:
Volatile Organic Compounds in Air- GC/MS
TO-15
V2237QC Analytical Batch(es):
Analysis Method:
Analysis Description:
TO-15 Prep
QC Prep:V2233
Associated Lab Samples: 94618, 94619, 94620
LRB-V2233 Matrix: AIRLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
03/16/21 12:012.380.594<0.594µg/m3Acetone
03/16/21 12:011.470.295<0.295µg/m3Methyl Ethyl Ketone (MEK)
03/16/21 12:014-Bromofluorobenzene (S)90.7 70-130
LCS-V2233Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
89.010.611.9µg/m3Acetone 70-130
10515.414.7µg/m3Methyl Ethyl Ketone (MEK)70-130
98.64-Bromofluorobenzene (S)70-130
Page 8 of 8Date:03/25/2021 01:40 PM
Page 27 of 30
Fed Ex
UPS
US Postal
Client
Lab
Courier
Other :
Shipment Receipt Form
Customer Number:
Customer Name:
Report Number:21-071-0030
Hart & Hickman (Charlotte)
01102
Shipping Method
Shipping container/cooler uncompromised?
Thermometer ID:-
Chain of Custody (COC) present?Yes No
Yes No Not Present
Yes No Not Present
Yes No
COC agrees with sample label(s)? Yes No
COC properly completed
Samples in proper containers?
Sample containers intact?
Sufficient sample volume for indicated test(s)?
All samples received within holding time?
Cooler temperature in compliance?
Yes No
Yes No
Yes No
Yes No
Yes No
Yes NoCooler/Samples arrived at the laboratory on ice.
Samples were considered acceptable as cooling
process had begun.
Yes No
Yes No N/A
Yes No N/A
Yes No N/ASoil VOA method 5035 – compliance criteria met
Water - Sample containers properly preserved
Water - VOA vials free of headspace Yes No N/A
Trip Blanks received with VOAs
Low concentration EnCore samplers (48 hr)
High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)
High concentration container (48 hr)
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Number of coolers/boxes received
Yes No
1
Signature:Talon J Yelton Date & Time:03/12/2021 13:32:29
Special precautions or instructions included?
Comments:
Page 28 of 30

Appendix G
DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
Worst-Case
North Carolina Department of Environmental Quality
Risk Calculator
West Boulevard
West Boulevard & Hawkins Street
DEQ DWM Brownfields
22076-18-060
January 2021
November 2020 EPA RSL Table
4/15/2021
Prepared By:
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: January 2021
Basis: November 2020 EPA RSL Table
Site ID: 22076-18-060
Exposure Unit ID: Worst-Case
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: January 2021
Basis: November 2020 EPA RSL Table
Site ID: 22076-18-060
Exposure Unit ID: 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
281 67-64-1 Acetone ug/m3
0.834 71-43-2 Benzene ug/m3
76.4 110-82-7 Cyclohexane ug/m3
3.37 75-71-8 Dichlorodifluoromethane ug/m3
5.19 100-41-4 Ethylbenzene ug/m3
20.8 142-82-5 Heptane, N-ug/m3
5.9 110-54-3 Hexane, N-ug/m3
4580 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
11.6 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m3
7.6 75-09-2 Methylene Chloride ug/m3
1.09 91-20-3 ~Naphthalene ug/m3
8.93 100-42-5 Styrene ug/m3
31.4 108-88-3 Toluene ug/m3
2.13 75-69-4 Trichlorofluoromethane ug/m3
6.4 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
2.08 108-67-8 Trimethylbenzene, 1,3,5-ug/m3
9.96 108-38-3 Xylene, m-ug/m3
4.59 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: January 2021
Basis: November 2020 EPA RSL Table
Site ID: 22076-18-060
Exposure Unit ID: Worst-Case
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 4.6E-08 4.0E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
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 - Non-Residential Worker Soil Gas to Indoor Air
Version Date: January 2021
Basis: November 2020 EPA RSL Table
Site ID: 22076-18-060
Exposure Unit ID: 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 281 2.81 -2.7E+04 2.1E-05
71-43-2 Benzene 0.834 0.00834 1.6E+00 2.6E+01 5.3E-09 6.3E-05
110-82-7 Cyclohexane 76.4 0.764 -5.3E+03 2.9E-05
75-71-8 Dichlorodifluoromethane 3.37 0.0337 -8.8E+01 7.7E-05
100-41-4 Ethylbenzene 5.19 0.0519 4.9E+00 8.8E+02 1.1E-08 1.2E-05
142-82-5 Heptane, N-20.8 0.208 -3.5E+02 1.2E-04
110-54-3 Hexane, N-5.9 0.059 -6.1E+02 1.9E-05
78-93-3 Methyl Ethyl Ketone (2-Butanone)4580 45.8 -4.4E+03 2.1E-03
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)11.6 0.116 -2.6E+03 8.8E-06
75-09-2 Methylene Chloride 7.6 0.076 1.2E+03 5.3E+02 6.2E-11 2.9E-05
91-20-3 ~Naphthalene 1.09 0.0109 3.6E-01 2.6E+00 3.0E-08 8.3E-04
100-42-5 Styrene 8.93 0.0893 -8.8E+02 2.0E-05
108-88-3 Toluene 31.4 0.314 -4.4E+03 1.4E-05
75-69-4 Trichlorofluoromethane 2.13 0.0213 --
95-63-6 Trimethylbenzene, 1,2,4-6.4 0.064 -5.3E+01 2.4E-04
108-67-8 Trimethylbenzene, 1,3,5-2.08 0.0208 -5.3E+01 7.9E-05
108-38-3 Xylene, m-9.96 0.0996 -8.8E+01 2.3E-04
95-47-6 Xylene, o-4.59 0.0459 -8.8E+01 1.0E-04
Cumulative:4.6E-08 4.0E-03
All concentrations are in ug/m3
Output Form
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