26008_MossTruckingCompany_VIMP_Rev 2_20231121

Via Email
November 21, 2023
NCDEQ – Division of Waste Management Brownfields Redevelopment Section 1646 Mail Service Center Raleigh, North Carolina 27699-1646
Attn: Mr. Bill Schmithorst
Re: Vapor Intrusion Mitigation Plan – Revision 2
Moss Trucking Company 3027 & 3035 North Tryon Street and 151 Atando Avenue Charlotte, North Carolina Brownfields Project No. 26008-22-060
H&H Project No. EMB-005
Dear Bill:
On behalf of Embrey Partners LLC, please find the enclosed Vapor Intrusion Mitigation Plan – Revision 2, dated November 21, 2023, prepared for the proposed redevelopment at the Moss Trucking Company Brownfields property located in Charlotte, Mecklenburg County. Should you have questions or need additional information prior to providing approval, please do not hesitate to contact us at [phone].
Sincerely,
Hart & Hickman, PC
Trinh DeSa, PE Brett Lawrence, PG Engineering Manager Senior Project Geologist
Enclosure
Cc (via email): Mr. Brad Knolle, Embrey Mr. Garrett Fox, Embrey Mr. Joel Albea, Embrey
Ms. Mary Katherine Stukes, Moore & Van Allen Ms. Laura Truesdale, Moore & Van Allen Mr. Ralph McGee, Hart & Hickman
#C-1269 Engineering #C-245 Geology

Vapor Intrusion Mitigation Plan
– Revision 2
NoDa North Tryon EPL

Moss Trucking Company
Brownfields Property
Tryon Street and Atando Avenue
Charlotte, North Carolina
Brownfields Project No. 26008-22-060

H&H Job No. EMB-005
Revision 2
November 21, 2023

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Vapor Intrusion Mitigation Plan – Rev. 2 NoDa North Tryon EPL Moss Trucking Company Brownfields Property Charlotte, North Carolina H&H Job No. EMB-005
Table of Contents
1.0 Introduction ................................................................................................................ 1
1.1 Background............................................................................................................2
1.2 Vapor Intrusion Evaluation ...................................................................................5
1.3 Brownfields Assessment .......................................................................................5
2.0 Design Basis ................................................................................................................ 8
2.1 Base Course Layer and Vapor Barrier ...................................................................8
2.2 Horizontal Collection Piping and Vertical Riser Piping .....................................10
2.3 Monitoring Points ................................................................................................11
2.4 General Installation Criteria ................................................................................12
3.0 Quality Assurance / Quality Control ...................................................................... 13
4.0 VIMS Effectiveness Testing .................................................................................... 14
4.1 Influence Testing .................................................................................................14
4.2 Pre-Occupancy Analytical Sampling ..................................................................14
5.0 VIMS Effectiveness Monitoring ............................................................................. 20
6.0 Future Tenants & Building Uses ............................................................................ 21
7.0 Reporting .................................................................................................................. 22

Figures
Figure 1 Site Location Map
Figure 2 Site Map

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Attachments
Attachment A Previous Assessment Data Summary
Attachment B Brownfields Assessment Report
Attachment C Vapor Intrusion Mitigation Design Drawings (dated November 21, 2023)
Attachment D-1 VaporBlock 20 (VBP-20) Product Specification Sheets & Installation
Instructions
Attachment D-2 Drago-Wrap Product Specification Sheets & Installation Instructions
Attachment D-3 Slotted PVC Pipe Product Specification Sheets
Attachment D-4 Ventilator Specification Sheet
Attachment D-5 Monitoring Point Access Termination Specification Sheets
Attachment D-6 Wal-Rich Corporation PVC Termination Screen
Attachment E Site-Specific Indoor Air VOC List

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Vapor Intrusion Mitigation Plan – Rev. 2 NoDa North Tryon EPL Moss Trucking Company Brownfields Property Charlotte, North Carolina H&H Job No. EMB-005 1.0 Introduction

On behalf of Embrey Partners, LLC (Prospective Developer or PD), Hart & Hickman, PC
(H&H) has prepared this Vapor Intrusion Mitigation Plan (VIMP) for the Moss Trucking
Company North Carolina Department of Environmental Quality (DEQ) Brownfields Property
(Brownfields Project No. 26008-22-060) which is planned for redevelopment with a new high-
density multifamily residential apartment building and associated parking garage. The Moss
Trucking Company Brownfields property (Site or subject Site) is located at 3027 and 3035 North
Tryon Street and 151 Atando Avenue in Charlotte, Mecklenburg County, North Carolina and is
comprised of four contiguous parcels (Parcel ID Nos. 08502101, 08502102, 08502103, and
08502104) that collectively total approximately 7.0 acres of land. A Site location map is
provided as Figure 1, and the Site and surrounding area are shown on Figure 2.

The Site appears to have been developed for commercial/industrial purposes as early as 1949.
Since the late 1940s, historical operations at the Site have included various warehouse companies
and truck and/or heavy equipment maintenance and repair operations. The Site is currently
developed with an approximately 17,465-square foot (sq ft) office building and 920 sq ft storage
building occupied by Advantage Machinery Services Inc. (AMS), a crane and rigging company,
and a 24,430 sq ft warehouse building occupied by Bryan Doesit, Inc. (BDI), an office furniture
supplier. Remaining portions of the Site consist of parking and equipment staging areas, and
undeveloped land.

To address potential environmental concerns associated with the Site, the PD elected to enter the
Site into the DEQ Brownfields Redevelopment Section and received eligibility in a letter dated
September 2, 2022. It is H&H’s understanding that a Notice of Brownfields Property
(Brownfields Agreement) is currently in development between the PD and the Brownfields
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Redevelopment Section. The PD plans to redevelop the Site with a four-story high-density
residential apartment building and associated parking garage (deck) known as NoDa North
Tryon EPL.

The current proposed development plans include a high-density apartment building. The
building is proposed to contain residential units and amenity spaces (e.g., leasing area, bike
storage, fitness center, etc.) on the ground floor, and the second to fourth levels of the building
are proposed to consist of residential units. The building will contain a flat roof with a parapet to
and will contain mechanical equipment on the roof. The building will consist of a total enclosed
occupiable ground floor space of approximately 109,000-sq ft including enclosed non-living
spaces in the parking garage, such as stairwells and storage rooms. No commercial areas nor
pour-back areas are currently proposed for the building.

1.1 Background

H&H completed Phase II Environmental Site Assessment (ESA) sampling activities at the Site in
March and May 2022. The purpose of the Phase II ESA sampling activities was to assess the
potential for impact from historical on-Site operations and off-Site contaminant sources, and to
evaluate potential risks associated with future Site development. Because the Site was being
considered for eligibility into the DEQ Brownfields Redevelopment Section at the time of the
assessment activities, H&H designed the Phase II ESA sampling approach to be consistent with
assessment activities typically requested by the DEQ Brownfields Redevelopment Section.

The Phase II ESA included collection of soil, groundwater, surface water, sediment, and soil gas
samples for laboratory analysis as well as subsurface methane gas measurements. Results of the
assessment activities are documented in a Phase II ESA Report prepared by H&H and dated
September 28, 2022. Tabular summaries of previous assessment data and a figure depicting the
locations of previous samples are provided in Attachment A. A brief summary of the sampling
activities and results related to potential vapor intrusion are provided below.

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Soil Sampling
In March and May 2022, thirteen (13) soil samples were collected for laboratory analysis to
evaluate the potential for impacts in areas of the Brownfields property planned for
redevelopment with residential buildings. Soil sampling results indicated that no volatile organic
compounds (VOCs) were detected at concentrations above the DEQ Preliminary Soil
Remediation Goals (PSRGs) in samples collected at the Site. Chlorinated solvent compounds
including tetrachloroethylene (PCE) and tetrachloroethylene (TCE) have not been identified at
concentrations above the laboratory method detection limits (MDLs) in soil samples collected at
the Site. Furthermore, the metal mercury was not detected above its PSRGs in the soil samples
collected from the Site. Refer to the DEQ-approved Environmental Management Plan (EMP)
dated April 6, 2023 for additional information regarding soil sampling data.

Groundwater Sampling
In March and May 2022, groundwater sampling activities at the subject Site included installation
and sampling of ten (10) temporary groundwater monitoring wells. Results of groundwater
assessment activities identified several VOCs, including bromomethane, chloroform,
chloromethane, and naphthalene at concentrations above the DEQ 2L Groundwater Quality
Standards (2L Standards) and/or the DEQ Division of Waste Management (DWM) Groundwater
Vapor Intrusion Groundwater Screening Levels (GWSLs) in at least one sample. PCE was
detected above the 2L Standard of 0.7 µg/L in groundwater samples TMW-7 / TMW-DUP (2.0
µg/L / 2.0 µg/L) and TMW-8 (4.6 µg/L), but below the GWSLs. Chromium (total) was detected
in TMW-9 at a concentration of 17.5 µg/L which is above the 2L Standard of 10 µg/L. Several
other metals were detected in the groundwater samples but at concentrations below the 2L
Standards and GWSLs. Note, the chlorinated solvent TCE was not detected above the laboratory
MDLs in the groundwater samples collected from the Site.

Soil Gas Sampling
In May 2022, H&H installed and sampled eleven (11) temporary exterior soil gas monitoring
points and two (2) sub-slab soil gas monitoring points in areas planned for redevelopment with
the high-density residential apartment building. The laboratory analytical results indicated
several VOCs (including benzene, chloroform, 1,1-dichloroethane, 1,2-dichloroethane,
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ethylbenzene, hexachloro-1,3 butadiene, naphthalene, 1,2,4-trichlorobenzene, vinyl chloride, and
total xylenes) were detected at concentrations above the DEQ Residential soil-gas screening
levels (SGSLs) in one or more samples collected from the Site. The 2022 soil gas samples
analytical results also indicated that TCE was detected slightly above the Residential SGSL of 14
µg/m3 in SG-3 (19.8 µg/m3). TCE was also detected at a low level above the laboratory
reporting limit in two other samples, SG-4 and SG-12, and was detected at low level estimated J-
flag concentrations below the laboratory reporting limit in two samples SG-2 and SG-8.
Additionally, PCE was detected above the laboratory MDLs, but well below the Residential
SGSL in several of the soil gas samples collected from the Site.

Subsurface Methane Gas Measurements
In May 2022, H&H collected subsurface methane gas measurements from each exterior and sub-
slab soil gas monitoring point locations at the Brownfields property. Results of the May 2022
sampling activities identified measurable concentrations by volume air of methane in SG-7 (up
to 0.5%) and SG-10 (up to 0.1%). No subsurface methane gas concentrations were detected
above the LEL of 5% by volume or the DEQ Brownfields Redevelopment Section 30% by
volume air residential use screening criteria. The 2022 methane gas screening results did not
indicate methane in soil gas or static pressure levels greater than the DEQ Brownfields Program
Threshold Criteria for Methane Site Development, including properties intended for residential
reuse.

Surface Water/Sediment Sampling
In March and May 2022, three (3) sediment and three (3) surface water samples were collected
for laboratory analysis. Sediment sampling results indicated that toluene was detected in one
sediment sample collected from the Site at a trace level above the laboratory MDL, but below the
laboratory reporting limit (resulting in an estimated J-flag concentration). No other organic
compounds were detected in the sediment samples above the laboratory MDLs. Several metals
were detected in the sediment samples collected from the Site above the laboratory reporting
limits but generally consistent with Site-specific background ranges.

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Surface water sampling results indicated the presence of chloromethane in two of the three
surface water samples collected from the Site above the laboratory reporting limits. However,
there is no DEQ Surface Water Quality Standard (2B Standard), North Carolina In-Stream
Target Value, or EPA National Recommended Water Quality Criteria (NRWQC) for
chloromethane. No other organic compounds were detected above laboratory MDLs in the
surface water samples collected from the Site.

1.2 Vapor Intrusion Evaluation
As summarized in our Phase II ESA Report, H&H utilized the DEQ Risk Calculator (January
2022) assuming a residential land use and hypothetical “worst-case” scenario to further evaluate
the potential cumulative risk for the soil gas to indoor air vapor intrusion pathway for the
proposed residential building. Results of the cumulative residential use risk calculation indicate
a Site-wide worse-case lifetime incremental cancer risk (LICR) of 4.6 x 10-4 for potential
carcinogenic risk and a hazard index (HI) of 1.5 for potential noncarcinogenic risk.

The DEQ risk calculator results indicate that the cumulative carcinogenic and noncarcinogenic
vapor intrusion risks exceed the DEQ acceptable thresholds of 1 x 10-4 and 1.0, respectively. In
order to minimize the potential for structural vapor intrusion into the proposed building, the PD
plans to install a vapor intrusion mitigation system (VIMS) during construction of the proposed
residential building at the Site. Copies of the completed risk calculators are included in
Attachment A.

1.3 Brownfields Assessment
During DEQ’s initial review of Revision 0 of this VIMP (previously submitted on January 11,
2023), DEQ Brownfields personnel requested that additional sub-slab soil gas sampling be
performed within the existing service garage to further evaluate subsurface soil gas conditions in
that portion of the Site. Note, the existing service garage will be demolished for the new
development. A Brownfields Assessment Work Plan (Work Plan) was submitted to DEQ on
August 2, 2023 and approved on August 8, 2023. A Brownfields Assessment Report
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documenting the methods and results of the additional sub-slab soil gas sampling activities is
included in Attachment B, and a brief summary of the results is provided below.

Brownfields Assessment activities were conducted on September 13, 2023 and included the
installation and sampling of four (4) sub-slab soil gas locations (SSV-1 to SSV-4). Sub-slab soil
gas results indicate the presence of bromodichloromethane, chloroform, 1,4-dioxane,
naphthalene, PCE, and TCE in at least one sample above the Residential SGSL. TCE was
detected in each of the four sub-slab soil gas samples collected from the service garage at
concentrations ranging from 1.4 µg/m3 to 32 µg/m3. The detected TCE concentrations in sub-
slab soil gas samples SSV-2 / SSV-DUP (21 µg/m3 / 22 µg/m3) and SSV-3 (32 µg/m3) are above
the Residential SGSL of 14 µg/m3.

H&H utilized the DEQ Risk Calculator (July 2023) assuming a residential use and a hypothetical
“worst-case” scenario for the September 2023 sub-slab soil gas samples collected from the
service garage. The risk calculations indicated a LICR of 7.6 x 10-5 and a HI of 2.1 for these
samples.

The DEQ risk calculator results indicate that the cumulative carcinogenic vapor intrusion risks
are considered acceptable, however the noncarcinogenic vapor intrusion risks exceed the DEQ
acceptable thresholds of 1.0. As described herein, the VIMS proposed to be installed by the PD
will serve to minimize the potential for structural vapor intrusion into the proposed building.

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

The vapor intrusion mitigation system detailed herein is designed to mitigate intrusion of
subsurface vapors into the subject buildings from known Brownfields property contaminants in a
manner that is in accordance with the most recent and applicable guidelines including, but not
limited to, DWM Vapor Intrusion Guidance, Interstate Technology & Regulatory Council
(ITRC) guidance, and American National Standards Institute (ANSI)/American Association of
Radon Scientists and Technologists (AARST) standards. The sealing professional engineer
below is satisfied that the design is fully protective of public health from known Brownfields
property contaminants.

[SEAL]

Trinh DeSa North Carolina PE (#044470) Hart & Hickman, PC (#C-1269)
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2.0 Design Basis
The VIMS design drawings for the NoDa North Tryon EPL development are included in
Attachment C (dated October 27, 2022). The following VIMS design sheets and will be used to
guide construction of the VIMS:
• Sheets VM-1 through VM-1E include the plan view design of each building area; and
• Sheets VM-3 through VM-5 include section details and specifications.
To reduce the potential for structural vapor intrusion, the VIMS will operate as a passive sub-
slab venting system that includes a network of horizontal sub-slab and vertical above-slab riser
piping connected to wind ventilators installed above the building roof to enhance the passive
system.

The proposed development plan includes one four-story residential apartment building with an
approximate enclosed ground floor area of approximately 109,000-sq ft. The current
development plans do not contain proposed commercial tenant spaces or pour-back spaces in the
building. The residential building is proposed to contain a slab-on-grade with thickened slabs
below load-bearing walls and select portions of the building containing column construction as
depicted on the VIMS design drawings. The VIMS will be divided into several VIMS treatment
areas to maximize system effectiveness that are generally split by structural features including
thickened slabs, slab-steps, or large footers as indicated on the design drawings (Appendix C).

2.1 Base Course Layer and Vapor Barrier

The VIMS includes placement of a minimum 4-inch base course stone (gravel) layer consisting
of high permeability stone (washed #57 stone, or similar high permeability stone approved by the
design engineer) below the concrete slab of the building. A vapor liner (vapor barrier) will be
installed above the base course stone layer and directly beneath the slab. The vapor liner will
also be installed underneath and along vertical walls within elevator pits and on vertical sub-
grade retaining walls backfilled with soil that are located adjacent to enclosed or occupiable
spaces. A horizontal collection piping network will be installed within the base course stone
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layer below the ground floor slabs prior to placement of the vapor liner. The horizontal vapor
collection piping is discussed further in Section 2.2. below. The piping layouts are shown on the
VIMS design drawings (Attachment C).

The vapor barrier will consist of a VOC-rated vapor barrier, such as Vaporblock® Plus 20
(VBP20) manufactured by Raven Industries (Raven), or Drago® Wrap Vapor Intrusion Barrier
(Drago Wrap) manufactured by Stego® Industries (Stego). Vapor barriers will be installed per
manufacturer installation instructions. Technical specifications for each vapor liner products
listed above are included in Attachment D.

The vapor barrier will be installed over the base course stone layer or applicable vertical sub-
grade walls and footers to cover the areas shown on the design sheets. Each vapor liner
manufacturer recommends select sealing agents (mastics, tapes, etc.) for their product. In
accordance with manufacturer installation instructions, alternative vapor liner products that are
not approved by the manufacturers for sealing should not be used, unless approved by the design
engineer and specific manufacturer.

The exterior edges of the vapor liner will be attached and sealed to building footings and
subsurface concrete features utilizing the tape specified in the manufacturer instructions. Seams
within the building envelope will have a minimum of 6-inches or 12-inches of overlap
(depending on the vapor barrier manufacturing specifications) and will be sealed with the tape
specified in the manufacturer instructions. If the vapor liner is damaged, torn, or punctured
during installation, a patch will be installed by overlaying a piece of vapor liner that is cut to the
approximate shape of the damaged area, and sized such that a minimum of 6-inches of patch
surrounds the damaged area. The seams of the patch will then be sealed using the manufacturer
recommended tape.

In areas where utility penetrations (i.e., piping, ducts, etc.) are present and the use of the tape
recommended by the manufacturer is not practical or deemed as “ineffective” by the design
engineer certifying the VIMP, an alternative sealant product specified by the vapor liner
manufacturer can be used, such as Raven Pour-N-Seal™ or manufacturer specified mastics.
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Following successful installation of the vapor liner, the finished concrete slab will be placed
directly on top of the sealed vapor liner to further seal the seams and penetrations. To minimize
potential preferential pathways through the slab, contractors will be instructed to not use hollow
piping to support utilities in preparation for concrete pours and will be instructed to remove
hollow piping observed during the field inspections.

2.2 Horizontal Collection Piping and Vertical Riser Piping
Passive sub-slab venting will be accomplished using horizontal slotted or perforated collection
piping which will collect vapor from beneath the ground floor slabs and discharge the vapors
above the building roofline. Both sub-slab and above-slab piping will consist of 3-inch diameter
Schedule 40 (SCH 40) PVC piping and fittings, unless otherwise specified in the design
drawings (Attachment C). Solid sections of VIMS piping shall maintain a minimum 1% slope
toward slotted sections to drain potential condensation water. Product specifications for the sub-
slab collection piping are provided in Attachment D.

The vertical exhaust riser pipes will terminate above the roofline. To enhance the passive VIMS,
wind turbine ventilators such as the Empire Model TV04SS (stainless steel) ventilators will be
installed on the discharge end of the 4-inch SCH 40 PVC vertical riser piping above the building
roofline to promote air exhaust from the risers. Equivalent ventilators may also be used pending
approval of the design engineer. Exhaust discharge locations must be a minimum of 2 ft above
the roofline and a minimum 10 ft from an operable opening (e.g., door or window) or air intake
into the building. Note that the exhaust locations on the roof depicted in the VIMS design may
be repositioned within the requirements specified above and pending approval by the design
engineer certifying the VIMP. Product specifications for the proposed wind ventilators are
provided in Attachment D. Electrical junction boxes (120VAC) will be installed on the roof in
proximity to riser exhaust discharges should connection of an electrical (active) fan be warranted
in the future.
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2.3 Monitoring Points

Monitoring points constructed with 2-inch diameter SCH 40 PVC will be installed as part of the
VIMS to conduct effectiveness testing (see Section 4.0), including vacuum influence
measurements, and for the collection of sub-slab soil gas samples for laboratory analysis. The
monitoring point locations are shown on the VIMS design drawings (Attachment C).

In general, monitoring points are placed at remotely distant locations from vertical riser piping
locations and in representative areas of the ground floor enclosed areas. To limit disturbance to
residents during future monitoring events, the majority of the monitoring point access ports will
be located in stairwells, mechanical rooms, or amenity spaces, and protected by a floor clean-out
style cover or will be contained within a corridor wall protected by a fire-rated wall access panel.
In select areas, the monitoring point will contain an exterior mounted access port protected by an
electrical outlet-style outdoor enclosure. Several monitoring points will be connected to
extended sub-slab horizontal pipes which place the intakes of the monitoring points below
occupied spaces. The extended monitoring points are expected to have no more than
approximately 6 ft of extension pipe. Product specifications for the proposed floor cleanout
covers are provided in Attachment D.

In the event that a monitoring point cannot be installed due to building component conflict or is
damaged/destroyed during construction, a replacement monitoring point can be constructed,
pending approval by the design engineer certifying the VIMP. The replacement point(s) shall
consist of one of the specified designs in the design drawings. DEQ will be notified in advance
if monitoring points are relocated significantly in relation to approved locations specified in the
VIMP (i.e., if moved to a location in a different mitigation area, section of slab, or tenant area).
The specific types and locations of monitoring points installed will be documented in as-built
drawings provided in a VIMS installation completion report.
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2.4 General Installation Criteria

The VIMS installed components (e.g., vapor barrier, piping, monitoring points, etc.) shall be
protected by the installation contractor and sub-contractors throughout the project. Protective
measures (e.g., flagging, protective boards, etc.) shall be used as needed to prevent damage to the
VIMS components. For example, the monitoring points and riser duct piping should be capped
with a removable slip-cap or cover immediately following installation to prevent water and/or
debris from entering the VIMS, and vapor barrier shall be protected from punctures and tears
during site-work.

For each phase of construction (above and below slab), construction contractors and sub-
contractors will be instructed to use “low or no VOC” products and materials to the extent
practical. Furthermore, the construction contractors should not use products containing the
compounds PCE or TCE. Prior to submittal of a VIMS installation completion report, the
construction contractor and sub-contractors shall be directed to provide safety data sheets (SDSs)
for products and materials used during construction. SDSs provided by the contractor and sub-
contractors will be included in the VIMS installation completion report.

Individual utility trenches within the building footprint are proposed to be backfilled with
compacted soils which is expected to minimize lateral vapor migration within chases and
trenches. Further, main utility lines, such as potable water, sanitary sewer, and stormwater
drainage utilities from the building are located on the northeastern portion of the property. No
utility mains are proposed to run from the western side of the property to the eastern side and
thus the utility trenches are not planned to be located near the area of higher contamination (i.e.,
former UST area) identified during previous assessment activities (Appendix A). As such, utility
trench dams that are sometimes warranted to reduce the potential for lateral vapor migration
along transmissive backfill layers (e.g., gravel, sand, etc.) from areas of elevated contamination
to areas of lower containment are not warranted based on the specific Site conditions and
proposed plans.
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3.0 Quality Assurance / Quality Control
For quality assurance and quality control (QA/QC) purposes, inspections will be conducted
during each phase of VIMS installation. The components that require inspection are outlined
below:
(1) Inspection of vapor barrier along the sub-grade elevator pits and applicable vertical
retaining walls prior to backfilling;
(2) Inspection of the base course stone layer, sub-slab piping layout, and monitoring points
prior to installing the vapor barrier;
(3) Inspection of the vapor barrier below slab areas prior to pouring concrete;
(4) Inspection of above-grade vertical riser piping; and
(5) Inspection of wind ventilators and riser pipe connections.

Each component of the VIMS shall be inspected and approved by the design engineer, or the
engineer’s designee, prior to being covered. Inspections will be combined, when possible,
depending on construction sequencing and schedule. The inspections will include field logs and
photographs for each section of slab. Locations where multiple penetrations are present and
where products such as Pour-N-Seal™ are used will be photographed and noted on the field logs.

The contractor shall notify the engineer certifying the VIMP, or his/her designee, with a two-
business day notice prior to a planned inspection, and H&H will provide a subsequent two-
business day notice to DEQ for the pending inspection.
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4.0 VIMS Effectiveness Testing
4.1 Influence Testing

Post-installation (pre-occupancy) influence testing will be conducted on each VIMS treatment
area to evaluate vacuum communication across the slab and confirm sufficient depressurization
can be obtained should electric fans be needed in the future. Influence testing will be conducted
for each treatment area following installation of the horizontal collection piping, placement of
the vapor liner, and completion of concrete slab pours.

For system influence testing, one or more vapor extraction fans will be attached directly to
vertical riser piping for the section of the slab being evaluated. Pressure differential will be
measured at extraction fan locations and sub-slab vacuum levels will be measured at each
monitoring point location. A pressure differential resulting in depressurization below the slab of
at least 4 pascals (approximately 0.016 inches of water column) at remote distances from riser
location in each VIMS treatment area may be considered sufficient evidence of sub-slab VIMS
influence. Vacuum influence testing results will be included in the VIMS installation completion
report. If the influence testing results indicate that modifications to the VIMS are needed to
achieve sufficient sub-slab depressurization, H&H will notify DEQ of the modifications prior to
submittal of a VIMS installation completion report.

4.2 Pre-Occupancy Analytical Sampling

As described in Section 1.0 and Attachment B, TCE has been detected in several exterior and
sub-slab soil gas samples collected at the Site (primarily in the vicinity of the service garage) at
concentrations above the laboratory reporting limit. Following VIMS installation, but prior to
occupancy of the building, analytical vapor sampling (which will include the collection of
concurrent sub-slab soil gas samples and indoor air samples) will be conducted across the
proposed Site building footprint to evaluate the potential for structural vapor intrusion.

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Sub-Slab Soil Gas
Following VIMS installation, but prior to occupancy of the building, sub-slab soil gas samples
will be collected from select monitoring points to further evaluate the potential for structural
vapor intrusion. The sub-slab soil gas samples will be collected from locations generally
representative of the slab conditions. Sub-slab soil gas sample analytical results will be used to
evaluate potential risks to future occupants of the building. Although the development contains
one interconnected apartment building, due to the size and layout, the ground floor was separated
into five areas (Area A through E) on the design drawings (Appendix C) for ease of reference. A
total of fifteen (15) sub-slab soil gas samples are proposed across the building footprint and are
indicated in the following table and depicted on the design drawings.

Area Sub-slab Soil Gas Sample Location
A MP-1 (leasing office), MP-4, MP-6, MP-10
B MP-11, MP-15
C MP-18, MP-19 (maintenance office), MP-36
D MP-21, MP-23, MP-26,
E MP-27, MP-30, MP-33

One (1) duplicate sub-slab soil gas sample using a laboratory-supplied “T” fitting for laboratory
QA/QC purposes will be collected during each sampling event.

Prior to sample collection, leak tests will be performed at each sub-slab soil gas sample location.
A shroud will be constructed around the monitoring point and sub-slab soil gas sampling train
and sample canister. Air within the shroud will be flooded with helium gas, and helium
concentrations will be measured and maintained using a calibrated helium gas detector. With
helium concentrations within the shroud maintained, sub-slab soil gas will be purged from the
sampling point with an air pump and collected into a Tedlar bag. The calibrated helium gas
detector will be used to measure helium concentrations within Tedlar bag sample to confirm
concentrations are less than 10% of the concentration maintained within the shroud. A minimum
of three sample train volumes will be purged from each point prior to and during the leak testing
activities.
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The sub-slab soil gas samples will be collected over an approximate 10-minute period using
laboratory supplied batch certified 1-liter or 1.4-liter Summa canisters and laboratory supplied
flow regulators calibrated with an approximate flow rate of 100 milliliters per minute. The
vacuum in the Summa canisters will be measured at the start and end of the sampling event, and
will be recorded by sampling personnel. The vacuum in each canister at the conclusion of the
sampling event shall remain above 0 inches of mercury (inHg), with a target vacuum of
approximately 5 inHg. H&H understands that analytical results for a sample will not be accepted
by DEQ if internal vacuum for that sample reaches 0 inHg.

The samples will be submitted to a qualified laboratory under standard chain of custody
protocols for analysis of full-list VOCs by EPA Method TO-15, including naphthalene. The
analytical laboratory will be instructed to report vacuum measurements as received at the lab and
J-flag concentrations for each sample. In addition, H&H will request that the laboratory report
compound concentrations to the lower of the laboratory method detection limits or to the extent
possible, the DEQ DWM Residential SGSLs.

Indoor Air Sampling
While the proposed passive VIMS is designed to prevent vapor intrusion into the enclosed areas,
as a conservative measure based on the residential use of the Site, pre-occupancy indoor air
sampling will be conducted in select VIMS treatment areas in addition to the sub-slab sampling
in the proposed residential building. The select VIMS treatment areas will include locations
where TCE was detected in exterior or sub-slab soil gas samples at concentrations above the
laboratory reporting limit. The select VIMS treatment areas include the service garage (exterior
soil gas sample SG-3 and sub-slab soil gas samples SSV-1 through SSV-4), the south-central
portion of the Site (exterior soil gas sample SG-4), and the northeastern portion of the Site (sub-
slab soil gas sample SG-12).

To further evaluate potential vapor intrusion risks associated with the TCE detections, H&H will
collect five indoor air samples (identified as IAS-1 through IAS-5) from the proposed apartment
building. The indoor air samples will be co-located with sub-slab soil gas samples collected
from each area. Two indoor air samples will be collected from the vicinity of the former service
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garage (identified as IAS-1 and IAS-2) and will be co-located with sub-slab soil gas samples
MP-18 and MP-19, respectively. One indoor air sample (IAS-3) will be collected from the
south-central portion of the Site and will be co-located with sub-slab soil gas sample MP-35, one
indoor air sample (IAS-4) will be collected from the northeastern portion of the Site and will be
co-located with sub-slab soil gas sample MP-6, and one indoor air sample (IAS-5) will be co-
located with sub-slab soil gas sample MP-23 in the southern portion of the Site. The proposed
indoor air sampling locations are depicted on Sheet VM-1.

The building is intended to be occupied shortly following completion and initialization of the
HVAC system. Therefore, the indoor air sampling events will be conducted following
construction and installation of the VIMS and fully enclosed building including a minimum of
two weeks with operational ventilators but may be conducted prior to initialization of the HVAC
system(s). The DEQ Vapor Intrusion Guidance, dated March 2018, indicates “higher indoor air
concentrations might be expected when a building is sealed up and the HVAC is not running”,
and “worse case conditions may also be considered when the building is closed up and the
HVAC system is not running.” Furthermore, HVAC equipment is typically not able to be
activated until approximately a few weeks prior to occupancy due to the timing of the
Mecklenburg County approval for installation of the gas and electric meters. Thus, conducting
indoor air sampling with the building enclosed, but prior to HVAC operation, may allow for a
more conservative indoor air sampling approach and will allow for time to conduct the pre-
occupancy sampling and reporting as required in this Plan prior to occupancy. In addition,
HVAC equipment isn’t operational until finishing activities including installation of flooring,
cabinets, sealants, paints, industrial cleaning, etc. are being conducted. Off-gassing of VOCs
from these building finishing materials and products can impact the indoor air concentrations and
make it more difficult to evaluate the potential for vapor intrusion. Thus, sampling ahead of
operational HVAC equipment and building finishing activities is proposed.

The indoor air samples will be collected concurrently (within 48 hours) of the co-located sub-
slab soil gas samples using individually-certified 6-liter stainless steel Summa canisters
connected to in-line flow controllers equipped with a vacuum gauge. The flow controllers will
be set by the laboratory to allow the samples to be collected over an approximately 24-hour
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period for a residential use scenario. A laboratory supplied 3-foot sampling cane, or similar
methods, will be connected to the flow controller so that the sample intake point is positioned
approximately 5 ft above grade (typical breathing zone height) when the sample canister is set on
its base. In addition, during each indoor air sampling event, one (1) duplicate sample for
laboratory QA/QC and one (1) background sample from an ambient air upwind locations will be
collected. Prior to and after the indoor and background air samples are collected, vacuum in the
canisters will be measured using a laboratory-supplied vacuum gauge and recorded by sampling
personnel. A vacuum above 0 inHg and ideally around 5 inHg will be maintained within the
canisters at the conclusion of the sampling event.

The starting and ending vacuum in each canister will be recorded on the sample chain of
custody. Periodic checks will be conducted by sampling personnel to monitor the pressure
within the Summa canisters during sampling to ensure adequate sample volume is collected. The
indoor air sample canisters will then be labeled and shipped under standard chain of custody
protocols to a qualified laboratory for analysis of select VOCs by EPA Method TO-15 (included
as Attachment E). The select compound list will include PCE, TCE, and their daughter products
as well as VOC compounds on the TO-15 list that were detected in Site media during previous
assessment activities. If additional compounds not on the select list are detected in the sub-slab
soil gas samples, the laboratory will be requested to report these for the indoor air sample results,
if possible. The analytical laboratory will be instructed to report vacuum measurements at
receipt and J-flag concentrations for each sample. H&H will request that the laboratory report
compound concentrations to the lower of the laboratory MDLs or to the extent possible, the DEQ
DWM Residential Vapor Intrusion Indoor Air Screening Levels (IASLs). In addition, an Indoor
Air Building Survey form (Appendix C of the DWM VI Guidance) will be completed for each
building during the sampling event.

New construction materials such as treated lumber, paint, caulk, carpet, adhesives, sealants, etc.,
which could be sources of VOCs in indoor air, may cause interference with Site-specific
compounds of concern during indoor air sampling. As previously noted, the construction
contractors will be requested to provide SDSs for materials used during construction which will
be submitted to DEQ, if needed to further evaluate sub-slab and indoor air data.
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The results and analysis of the sub-slab soil gas sampling will be submitted to DEQ with the
final VIMS installation completion report (discussed in Section 7.0). H&H will use the most
recent version of the DEQ Risk Calculator to evaluate cumulative potential vapor intrusion risks
under a residential scenario for each sample location or VIMS treatment area, whichever is most
applicable. Based upon the results of the indoor air sampling, H&H will make recommendations
in general accordance with the DWM VI Guidance. It is anticipated that the recommendations
will consist of one of the following:

• The VIMS is effective, and no further sampling of indoor air or sub-slab soil gas is
warranted (per the DWM VI Guidance, in the case where calculated cumulative risks are
below 1x10-4 for potential carcinogenic risks and below a hazard index of 1 for potential
non-carcinogenic risks).

• Additional indoor air sampling is warranted to confirm that the VIMS is effective (per the
DWM VI Guidance, in the case where calculated cumulative risks are greater than 1x10-4
for potential carcinogenic risks or above a hazard index of 1 for potential non-
carcinogenic risks).

Prior to completing additional indoor air sampling, an evaluation of potential background
sources will be completed and inspections will be performed to determine if preferential vapor
intrusion pathways may exist or if compound detections may be attributable to building and
construction material off-gassing.

If additional indoor air sampling is required, modifications to the existing system will be
evaluated to increase the VIMS effectiveness. Should results of post-construction indoor air
testing continue to indicate potential unacceptable vapor intrusion risks to occupants of the
building(s), active fans may be installed at the discharge end of the riser duct piping to convert
the system from passive to active sub-slab depressurization. DEQ will be notified of alterations
to the system. If the system were transitioned to an active system in the future, a work plan will
be submitted to DEQ to document a schedule for additional monitoring, including vacuum
monitoring events.
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5.0 VIMS Effectiveness Monitoring
The VIMS is proposed as a passive system which will include vapor extraction through sub-slab
collection piping and solid riser pipes that discharge sub-slab vapors above the roofline. The
passive system will be enhanced with stationary ventilators to enhance air exhaust from the sub-
slab annular space. As such, differential pressure monitoring is not anticipated. If the VIMS is
converted to an active system with electric fans based on post-construction VIMS efficacy
testing results, mitigation system modifications and plans for additional VIMS efficacy testing
will be submitted to the DEQ Brownfields Redevelopment Section for approval prior to
implementation. The specific electric fans to be used will be selected by the design engineer
based on the results of the influence testing discussed in Section 4.0.

Post-occupancy sub-slab soil gas and indoor air sampling is proposed to be performed on a semi-
annual basis for a minimum of two years (four events) following initial occupancy of the Site
building. The frequency, amount, and locations of the sub-slab and indoor air samples for the
post-occupancy sampling events may be reduced or modified depending on the pre-occupancy
sampling results, pending DEQ review and approval. A recommendation regarding the post-
occupancy sub-slab soil gas and indoor air sampling will be provided in the VIMS installation
report based on the pre-occupancy sampling results and risk calculations. Based on the pre-
occupancy sampling results, a request to limit the sub-slab vapor and indoor air samples to a
select list of compounds may be submitted to DEQ for review and approval prior to the post-
occupancy sampling events.

The post-occupancy sampling will be conducted using the procedures described in this VIMP.
Further, after each post-occupancy semi-annual sampling event, if the sampling results indicate
consistent or decreasing concentrations within acceptable risk levels, a request to modify or
terminate sampling may be submitted for DEQ approval. No changes to the sampling frequency
or termination of sampling will be implemented until written approval is obtained from DEQ.
The first semi-annual post-occupancy sampling event is anticipated to take place approximately
six months after the start of occupancy of the building, or as otherwise approved by DEQ.

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6.0 Future Tenants & Building Uses
The future use of the proposed Site building includes multi-family residential apartments. After
occupancy of the Site building, VIMS maintenance and upkeep will be the responsibility of the
building owner or property management group. If vapor mitigation components are damaged or
need to be altered for building renovations, the building owners or management will be
instructed to contact appropriate parties to conduct appropriate maintenance.

A North Carolina licensed Professional Engineer (NC PE) will be contacted to oversee or inspect
the modifications or repair activities, and a report shall be submitted to DEQ detailing the repairs
or alterations. To aid in identification of the vapor mitigation piping, the construction contractor
will label the pipe with “Vapor Mitigation – Contact Maintenance”, or similar language, on
accessible piping at intervals of no greater than 10-linear feet. The labels shall include a printed
label or painted label with stencils adhered directly to the pipe. Similar labels will also be
affixed near the exhaust discharge on the roof.

As part of the standard annual Land Use Restriction Update submittal that will be required as
part of the pending Brownfields Agreement, the building owner or property management group
should complete a visual inspection of the exposed parts of the system including, but not limited
to, the vertical risers and ventilators on the roof and the monitoring points. H&H recommends
annual inspections be documented and kept on record to be provided to DEQ upon request.
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7.0 Reporting
A VIMS Installation Completion Report (sealed by a NC PE) documenting installation activities
associated with the VIMS will be submitted to DEQ following confirmation that the mitigation
system is installed and effectively mitigating potential vapor intrusion risks to building
occupants. The report will include a summary of VIMS installation activities such as
representative photographs and as-built drawings, QA/QC measures, SDSs of materials used in
construction, VIMS effectiveness testing results, and inspection documents. The report will also
include a statement provided by the design engineer as to whether the VIMS was installed in
accordance with the DEQ approved VIMP and is protective of public health as defined in
Section 1.0, and as evidenced by the VIMS inspections performed by the engineer or designee of
the design engineer, results of the influence testing, results of the analytical testing, and QA/QC
measures as described in this VIMP. Deviations from the approved design will be provided in
the report.

The pending Brownfields Agreement is anticipated to include standard land use restrictions that
indicate the building(s) shall not be occupied until DEQ provides written compliance approval
for the installation and performance of the VIMS as documented in the installation report.
However, we understand that DEQ may provide conditional approval with submittal of a data
summary package in lieu of the full VIMS Installation Completion Report if warranted based on
timing of the proposed building occupancy date and report review times. No occupancy of the
building can occur without prior written approval from DEQ, with the decision based on the pre-
occupancy VIMS efficacy sampling results.

After each semi-annual post-occupancy sampling event, a report will be submitted to DEQ (as
described above) to document the sampling activities and results.

USGS The National Map: National Boundaries Dataset, 3DEP ElevationProgram, Geographic Names Information System, National HydrographyDataset, National Land Cover Database, National Structures Dataset,and National Transportation Dataset; USGS Global Ecosystems; U.S.Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data;U.S. Department of State Humanitarian Information Unit; and NOAANational Centers for Environmental Information, U.S. Coastal ReliefModel. Data refreshed August, 2021.
SITE LOCATION MAP
MOSS TRUCKING COMPANY 3027 & 3035 NORTH TRYON STREET AND 151 ATANDO AVENUE CHARLOTTE, NORTH CAROLINA
DATE: 5-27-22
JOB NO: EMB-005
REVISION NO: 0
FIGURE. 1
2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology
TITLE
PROJECT
0 2,000 4,000
SCALE IN FEET
Path: \\HHFS01\Redirectedfolders\sperry\My Documents\ArcGIS\PROJECTS\EMB-005\Figure 1.mxdN
U.S.G.S. QUADRANGLE MAP
CHARLOTTE EAST, NORTH CAROLINA 2019DERITA, NORTH CAROLINA 2019
QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC)
SITE
DATE: 6-9-22
?
2923 South Tryon Street, Ste. 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / #C-245 Geology
SITE MAP
MOSS TRUCKING COMPANY 3027 & 3035 NORTH TRYON STREET AND 151 ATANDO AVENUECHARLOTTE, NORTH CAROLINA
JOB NO. EMB-005
REVISION NO. 0
FIGURE NO. 2
PROJECT
TITLE
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
PARCEL BOUNDARY LINE
SURFACE WATER FEATURE
PIPE
N
APPROXIMATE075 150
SCALE IN FEET
1. PARCEL DATA OBTAINED FROM MECKLENBURGCOUNTY GIS, 2022. AERIAL IMAGERY OBTAINED FROMMECKLENBURG COUNTY GIS, 2022.
NOTES:
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A
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A
V
E
N
U
E
NORTH T
RY
ON STREET
STORAGE BUILDING
OFFICE
SERVICE GARAGESERVICE GARAGE
FORMER FUELDISPENSER ISLAND
FORMER UST AREA
6,000-GAL FORMERHEATING OIL UST(CLOSED IN PLACE)
OILY WATER AST
OIL/WATER SEPARATOR
McCARTHY TIRE SERVICE AND B&N GRADING(227 ATANDO AVENUE)L S WILLIAMS ELECTRIC CO.(138 ATANDO AVENUE)
DIAMONDS OF CHARLOTTE(124 ATANDO AVENUE)
MOLINA AUTO REPAIR(118-122 ATANDO AVENUE)
TWO COUSINS AUTO REPAIR(3101 N. TRYON STREET)
SMS AUTO(3100 N. TRYON STREET)
3027 N. TRYON STREET
NODA BREWING COMPANY(2921 N. TRYON STREET)
VACANT LAND(210 W. 32ND STREET)
ADDITIONAL TOTESTORAGE AREA
AST/TOTE/DRUMSTORAGE AREA
AIR COMPRESSORSHED
PARTS WASHER
3035 N. TRYON STREET
WAREHOUSEWAREHOUSE (NO PHYSICAL ADDRESS)
151 ATANDO AVENUEFORMER UST AREA

Attachment A

Previous Assessment Data Summary
DATE: 7/21/2022
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COMP-1
COMP-4
COMP-3
SG-11
SG-13
TMW-7
TMW-8
TMW-10
TMW-9
SG-12
COMP-6
COMP-5
SED-1/SW-1
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TMW-3
COMP-2
SB-7
TMW-4
TMW-5
TMW-6
TMW-2
TMW-1
BG-1
BG-2
BG-3
SB-1
SB-2
SB-3
SB-4
SB-5
SB-6
SG-1
SG-2
SG-3
SG-4
SG-5
SG-6
SG-7
SG-8
SG-9
SG-10
SED-2/SW-2
SED-3/SW-3
MeckCoGIS
2923 South Tryon Street, Ste. 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / #C-245 Geology
SAMPLE LOCATION MAP
MOSS TRUCKING COMPANY 3027 AND 3035 NORTH TRYON STREET AND 151 ATANDO AVENUE CHARLOTTE, NORTH CAROLINA
JOB NO. EMB-005
REVISION NO. 0
FIGURE NO. 3
PROJECT
TITLE
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
PARCEL BOUNDARY LINE
SURFACE WATER FEATURE
PIPE
!GÑ GROUNDWATER SAMPLE LOCATION
!#SOIL SAMPLE LOCATION
#*>SOIL GAS SAMPLE LOCATION
#*>SUB-SLAB SOIL GAS SAMPLE LOCATION
#*CO-LOCATED SEDIMENT AND SURFACEWATER SAMPLE LOCATION
PROPOSED BUILDING FOOTPRINT
N
APPROXIMATE075 150
SCALE IN FEET
1. PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY GIS, 2022. AERIAL IMAGERY OBTAINED FROM MECKLENBURG COUNTY GIS, 2021.
2. PHASE II ESA SAMPLING CONDUCTED BY H&H IN MARCH AND MAY 2022.
NOTES:
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A
V
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N
U
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NORTH T
RY
ON STREET
OFFICE
OFFICE
SERVICE GARAGESERVICE GARAGE
FORMER FUELDISPENSER ISLAND
FORMER UST AREA
6,000-GAL FORMERHEATING OIL UST(CLOSED IN PLACE)
OILY WATER AST
OIL/WATER SEPARATOR
WAREHOUSE
FORMER UST AREA
Table 1Summary of Soil Analytical DataFormer Moss Trucking CompanyCharlotte, North CarolinaBrownfields Project No. 26008-22-060H&H Job No. EMB-005Evaluation AreaAOCSample IDCOMP-1 COMP-2 COMP-3 COMP-4 COMP-5 COMP-6 SB-1 SB-2 SB-3 SB-4 SB-5 SB-DUP SB-6 SB-7 BG-1 BG-2 BG-3Date5/16/2022 5/17/2022 5/16/2022 3/21/2022 3/21/2022 3/21/2022 5/17/2022 5/17/2022 5/16/20225/17/2022 5/17/2022 5/16/2022 3/21/2022 3/21/2022 3/21/2022Depth (ft bgs)0-2 0-2 0-2 0-2 0-2 0-2 2-4 4-6 6-8 2-4 2-4 6-8 0-2 0-2 0-2UnitsVOCs (8260D)Acetone <0.0446 <0.0419 <0.0479 <0.0395 <0.0369<0.0380 <0.041 <0.087 <0.0452 <0.0400.0813 J 0.111 J<0.063 <0.547 NA NA NA14,000 210,000n-Butylbenzene<0.0033 <0.0031 <0.0035 <0.0029 <0.0027 <0.0028 <0.0029 <0.00640.128<0.0029 <0.0031 <0.0028 <0.0046 <0.004 NA NA NA780 12,000sec-Butylbenzene<0.0031 <0.0029 <0.0033 <0.0027 <0.0025 <0.00260.0458 0.22 0.108<0.00270.0354 0.0434<0.00437.48NA NA NA1,600 23,000tert-butylbenzene<0.0025 <0.0023 <0.0027 <0.0022 <0.0020 <0.00210.0132<0.00480.0419<0.0022 <0.0024 <0.0021 <0.00350.773NA NA NA1,600 23,000Chlorobenzene<0.0013 <0.0013 <0.0014 <0.0012 <0.0011 <0.0011 <0.00120.0176<0.0014 <0.0012 <0.00130.0103<0.0019 <0.0016 NA NA NA58.0 280Ethylbenzene<0.0032 <0.0030 <0.00350.0035 J<0.0027 <0.00280.0543<0.00630.0115<0.00290.008 0.0084<0.0046 <0.0040 NA NA NA6.1 27Isopropylbenzene<0.0024 <0.0022 <0.0025 <0.0021 <0.002 <0.00200.0442<0.00460.0614<0.0021 <0.0023 <0.0020 <0.00302.95NA NA NA410 2,100Methyl Ethyl Ketone (MEK)<0.0330.0386<0.0358 <0.0295 <0.0276 <0.02840.0369 J<0.065 <0.0338 <0.0299 <0.032 <0.0285 <0.0471 <0.0409 NANANA5,50040,000Naphthalene<0.0037 <0.0034 <0.00390.0047 J<0.00300.0045 J 0.0629<0.0071 <0.0037 <0.0033 <0.0035 <0.0031 <0.0052 <0.0045 NANANA2.18.8n-Propylbenzene<0.0025 <0.0023 <0.0027 <0.0022 <0.0020 <0.00210.067<0.00480.0297<0.0022 <0.0024 <0.0021 <0.00352.12NANANA7805,100Toluene<0.0020 <0.0019 <0.00210.0045 J 0.0031 J 0.0054 J<0.0018 <0.0038 <0.002 <0.00180.0066 J 0.0072<0.0028 <0.0024 NANANA9909,7001,2,4-Trimethylbenzene<0.0019 <0.0018 <0.00200.0048 J<0.0016 <0.0016 <0.0017 <0.0037 <0.0019 <0.0017 <0.0018 <0.0016 <0.00270.0269NANANA633701,3,5-Trimethylbenzene<0.0023 <0.002 <0.00250.0052 J<0.0019 <0.0020 <0.0021 <0.0046 <0.0024 <0.0021<0.0022 <0.0020 <0.0033 <0.0029 NANANA56320o-Xylene<0.0031 <0.0029 <0.00330.0040 J<0.0025 <0.00260.0142<0.006 <0.0031 <0.0028 <0.0029 <0.0026 <0.0043 <0.0038 NANANA140590m,p-Xylene<0.0047 <0.0045 <0.00510.0091 J<0.0039 <0.0040 <0.0043 <0.0093 <0.0048 <0.0043 <0.0046 <0.0041 <0.0067 <0.0058 NANANA120500Xylene (Total)<0.0040 <0.0037 <0.00430.0130 J<0.0033 <0.00340.0142<0.0077 <0.0040 <0.0036 <0.0038 <0.0034 <0.0056 <0.0049 NANANA120530SVOCs (8270E)Anthracene<0.131 <0.123 <0.134 <0.131 <0.1230.224 J<0.125 <0.124 <0.141 <0.130 <0.130 <0.126 <0.146 <0.153 NA NA NA3,600 45,000Benzo(a)anthracene<0.133 <0.125 <0.137 <0.133 <0.1260.487<0.128 <0.127 <0.143 <0.132 <0.133 <0.129 <0.148 <0.156 NANANA1.121Benzo(a)pyrene<0.138 <0.129 <0.142 <0.138 <0.1300.411<0.132 <0.131 <0.148 <0.137 <0.137 <0.133 <0.154 <0.162 NANANA0.112.1Benzo(b)fluoranthene<0.133 <0.125 <0.137 <0.133 <0.1260.525<0.128 <0.127 <0.143 <0.132 <0.133 <0.129 <0.148 <0.156 NANANA1.121Benzo(g,h,i)perylene<0.155 <0.145 <0.159 <0.155 <0.1460.267 J<0.149 <0.148 <0.167 <0.154 <0.154 <0.150 <0.173 <0.182 NANANANENEBenzo(k)fluoranthene<0.140 <0.132 <0.144 <0.140 <0.1320.208 J<0.135 <0.1334 >0.151 <0.140 <0.140 <0.136 <0.156 <0.165 NANANA11210Benzoic Acid<0.857 <0.805 <0.881 <0.857 <0.809 <0.8410.994 J<0.817 <0.923 <0.853 <0.855 <0.829 <0.956 <1.01NANANA51000660,000Chrysene<0.145 <0.136 <0.149 <0.145 <0.1370.436<0.139 <0.138 <0.156 <0.144 <0.145 <0.140 <0.162 <0.171 NANANA1102,100Fluoranthene <0.137 <0.128 <0.140 <0.1370.229 J 1.04<0.131 <0.130 <0.147 <0.136 <0.136 <0.132 <0.152 <0.161 NANANA4806,000Fluorene<0.140 <0.132 <0.144 <0.140 <0.132 <0.138 <0.135 <0.134 <0.151 <0.140 <0.140 <0.136 <0.156 0.236 J NANANA4806,000Indeno(1,2,3-cd)pyrene<0.157 <0.148 <0.162 <0.157 <0.1480.225 J<0.151 <0.150 <0.169 <0.156 <0.157 <0.152 <0.175 <0.185 NANANA1.1211-Methylnaphthalene<0.140 <0.132 <0.144 <0.140 <0.132 <0.1380.551<0.1340.959<0.140 <0.140 <0.136 <0.156 <0.165 NANANA18732-Methylnaphthalene<0.160 <0.150 <0.164 <0.160 <0.151 <0.1560.73<0.1520.363 J<0.159 <0.159 <0.154 <0.178 <0.188 NANANA48600Naphthalene<0.135 <0.127 <0.139 <0.135 <0.128 <0.1330.214 J<0.129 <0.146 <0.135 <0.135 <0.131 <0.151 <0.159 NANANA2.18.8Phenanthrene<0.131 <0.123 <0.134 <0.1310.228 J 0.886<0.125 <0.1240.631<0.130 <0.130 <0.126 <0.146 <0.159 NANANANENEPyrene<0.162 <0.152 <0.167 <0.1620.20 J 1.01<0.156 <0.154 <0.174 <0.161 <0.162 <0.157 <0.181 <0.190 NANANA3604,500Metals (6020B/7471B/7199)Arsenic1.9 1.4 2.91.5 1.41.81.4 0.63 1.4 0.613.73.22.52.11.31.31.60.683.0Barium51.969.310697.395.878.812821352522733724715731668.121.886.83,10047,000Cadmium <0.036 <0.034 <0.0390.045 J<0.0340.092 0.290.170.290.219.57.60.85 0.078 J 0.050 J<0.0350.101.420Chromium (total)31.040.427.347.728.761.130.515.626.975.272.759.711129.144.916.326.9NENEChromium (VI)0.747 J 1.24 0.555 J0.381 J1.60.586 J 1.331.233.933.250.639 J<0.3177.040.627 J1.39 0.691 J 1.04 J0.31 6.5Chromium (III) 30.25 39.16 26.75 47.32 27.1 60.51 29.2 14.4 23.0 72.0 72.1 59.4104.0 28.5 43.51 15.625.923,000350,000Lead7.07.911.314.919.121.624.23.57.04.245330856.813.512.74.340.3400800Mercury0.0260.027 0.033 0.044 0.056 0.051 0.028<0.00980.070<0.00940.032 0.040 0.029 0.0400.028 0.024 0.0392.39.7Selenium0.29 J 0.24 J 0.29 J 0.34 J 0.32 J 0.37 J 0.28 J 0.21 J 0.32 J 0.23 J 0.28 J 0.27 J 0.21 J 0.35 J 0.36 J 0.23 J 0.35 J781,200Silver<0.17 <0.16 <0.18 <0.17 <0.16 <0.170.20 J<0.15 <0.17 <0.170.20 J<0.15 <0.18 <0.20 <0.15 <0.16 <0.16781,200Notes:1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) dated January 2022 Soil concentrations are reported in milligrams per kilogram (mg/kg).Compound concentrations are reported to the laboratory method detection limits.Chromium III is a calculated value.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the Residential PSRGs, and Site-specific background levels in the case of metals.Underlined values exceed Industrial/Commercial PSRGs, and Site-specific background levels in the case of metals.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; ft bgs= feet below ground surfaceNA = not analyzed; NE = not established; UST = underground storage tank; AOC = area of elevated PID readingsJ = estimated value between the laboratory detection limit and the laboratory reporting limitResidential PSRGs Industrial/ Commercial PSRGs mg/kgSite-Specific BackgroundScreening Criteria (1)5/17/20223-5Areas of Planned GradingUST BasinsOil/Water Separatorhttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Embrey (EMB)/EMB.005 3027 N Tryon Street Brownfields/Tables/Data TablesTable 1 (Page 1 of 1)Hart & Hickman, PC
Table 3Summary of Groundwater Analytical DataFormer Moss Trucking CompanyCharlotte, North CarolinaBrownfields Project No. 26008-22-060H&H Job No. EMB-005Sample IDTMW-1 TMW-2 TMW-3 TMW-4 TMW-5 TMW-6 TMW-8 TMW-9 TMW-10Date5/18/2022 5/18/2022 5/17/2022 5/18/2022 5/18/2022 5/18/2022 3/22/2022 3/22/2022 3/22/2022 3/22/2022 3/22/2022 3/22/2022 5/18/2022UnitsVOCs (8260D)Benzene<0.340.62 J<0.34 <0.34 <0.34 <0.34 <0.34 <0.34 <0.34 <0.34 <0.34 <0.34 <0.341.0 1.66.9Bromomethane 4.8<1.7 <1.72.2 1.7 J 5.2<1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <1.710 3.515Chloroform<0.43 <0.43 <0.43 <0.433.3<0.43 <0.43 <0.431.6<0.43 <0.43 <0.43 <0.4370 0.813.6Chloromethane116<0.54 <0.5443.1 35.2 124<0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.543.0 52220Ethylbenzene<0.300.55 J<0.30 <0.30 <0.30 <0.30 <0.30 <0.30 <0.30 <0.30 <0.30 <0.30 <0.30600 3.515Methyl tert-butyl ether (MTBE) 1.6<0.42 <0.42 <0.42 <0.42 <0.42 <0.42 <0.42 <0.42 <0.42 <0.42 <0.42 <0.4220 4502,000Naphthalene<0.6413.1<0.64 <0.64 <0.64 <0.64 <0.64 <0.64 <0.64 <0.64 <0.64 <0.64 <0.646.0 4.620Tetrachloroethene<0.29 <0.29 <0.29 <0.29 <0.29 <0.292.0 2.0 4.6<0.29 <0.29 <0.29 <0.290.7 1248Toluene<0.48 <0.48 <0.48 <0.480.51 J 4.9<0.48 <0.48 <0.48 <0.48 <0.48 <0.48 <0.48600 3,80016,000SVOCs (8270E)Acenaphthene<1.83.1 J<1.7 <1.8 <2.0 <1.7 <1.8 <1.7 <1.8 <2.0 <1.8-- -- 80 NENEDi-n-butylphthalate 2.8 J<1.8 <1.8 <2.0 <2.2 <1.8 <2.0 <1.8 <2.0 <2.2 <2.0-- -- 700 NENE1-Methylnaphthalene<1.845.8<1.7 <1.8 <2.0 <1.7 <1.8 <1.7 <1.8 <2.0 <1.8-- -- NE NENE2-Methylnaphthalene<1.713.1<1.6 <1.7 <1.9 <1.6 <1.7 <1.6 <1.7 <1.9 <1.7-- -- 30 NENENaphthalene<1.94.8 J<1.7 <1.9 <2.1 <1.7 <1.9 <1.7 <1.9 <2.1 <1.9-- -- 6.0 4.620Phenanthrene<1.83.2 J<1.7 <1.8 <2.0 <1.7 <1.8 <1.7 <1.8 <2.0 <1.8-- -- 200 NENEMetals (6020B/7470A)Arsenic 0.27 J 1.9 0.13 J 0.39 J 0.29 J 0.34 J<0.083 <0.0830.16 J 0.92<0.083-- -- 10----Barium 43.5 42.3 147 148 68.4 97.4 25.1 22.6 75.3 350 14.2 -- -- 700----Cadmium 0.058 J 0.17 0.029 J 0.023 J 0.10 0.520.024 J <0.016 0.028 J0.059 J 0.020 J -- -- 2.0----Chromium (total) 1.6 J 2.5 0.89 J 2.7 1.7 J 5.3 0.72 0.67 1.717.52.1 -- -- 10----Lead 0.90 5.6 0.19 J 0.76 4.4 4.5 0.075 J 0.071 J 0.72 4.4 0.074 J -- -- 15----Mercury<0.095 <0.095 <0.095 <0.095 <0.095 <0.095 <0.070 <0.070 <0.070 <0.070 <0.070-- -- 1.0 0.18 0.75Selenium 0.17 J 0.24 J<0.0670.077 J 0.15 J 0.20 J 0.630.580.67 0.24 J<0.067-- -- 20----Silver<0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16-- -- 20----Notes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 20222) NC DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022Concentrations are reported in micrograms per liter (µg/L)Compound concentrations are reported to the laboratory method detection limitsLaboratory analytical methods are shown in parenthesesWith the exception of metals, only constituents detected in at least one sample are shown in the table aboveBold values exceed the 2L StandardUnderlined values exceed the DWM Residential GWSLVOCs = volatile organic compounds; SVOCs = semi-volatile organic compunds; NE = not established; -- = not applicable; BDL = below laboratory method detection limit J = estimated value between the laboratory detection limit and the laboratory reporting limit2L Standards (1) Residential GWSLs (2)Non-Residential GWSLs (2)TMW-7/GW-DUPµg/LTrip Blankhttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Embrey (EMB)/EMB.005 3027 N Tryon Street Brownfields/Tables/Data Tables9/16/2022Table 3 (Page 1 of 1)Hart & Hickman, PC
Table 4 Summary of Surface Water Analytical ResultsFormer Moss Trucking CompanyCharlotte, North CarolinaBrownfields Project No. 26008-22-060H&H Job No. EMB-005Sample IDSW-2 SW-3Sample Date03/21/22 03/21/22 05/17/22 05/17/22 Acute ChronicUnitsVOCs (8260D)Chloromethane<0.54 <0.5425.6 13.8 NE NESVOCs (8270E)ALL BDL ALL BDL ALL BDL ALL BDLRCRA Metals (6020/7470)Arsenic 1.2 1.2 1.5 1.7 340 150 Barium 47.4 46.6 41.7 42.9 21,000* NECadmium 0.022 J 0.026 J 0.041 J 0.113.19 (2)0.48 (2)Chromium (Total) 0.45 J 0.58 0.71 J 14.4657 (2)85.46 (2)Lead 0.27 0.22 0.41 J 1.878.01 (2)3.04 (2)Mercury<0.070 <0.070 <0.095 <0.0950.012 NESelenium 0.16 J 0.18 J 0.14 J 0.21 J 5 NESilver 0.17 J 0.17 J<0.16 <0.164.34 (2)NEHardness (SM 2340)Total Hardness 112,000 117,000 120,000 128,000-- --Notes:1) North Carolina 15A North Carolina Administrative Code 02B.0202 Surface Water Quality Standards (2B Standards) for Class C Surface Waters dated July 2021.2) Standard derived using the DEQ Hardness-Dependent Metal Calculator dated July 26, 2021 using the mean in-stream hardness value of 119 milligrams per liter as CaCO3.*North Carolina In-Stream Target Values for Class C Surface Waters Samples were collected from on-Site portions of an unnamed tributary of Derita Branch. Compound concentrations are reported in micrograms per liter (µg/L). Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only those compounds detected in at least one sample are shown in the table above.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; BDL = below laboratory method detection limit; -- = not applicable J = estimated value between the laboratory detection limit and the laboratory reporting limit 2B Standards (1)SW-1/SW-DUPµg/L-- --https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Embrey (EMB)/EMB.005 3027 N Tryon Street Brownfields/Tables/Data Tables9/16/2022Table 4 (Page 1 of 1)Hart & Hickman, PC
Table 5Summary of Sediment Analytical ResultsFormer Moss Trucking CompanyCharlotte, North CarolinaBrownfields Project No. 26008-22-060H&H Job No. EMB-005Evaluation AreaSample LocationMid-Stream DownstreamSample IDSED-2 SED-3BG-1 BG-2 BG-3Date5/17/2022 5/17/20223/21/2022 3/21/2022 3/21/2022UnitsVOCs (8260D)Toluene0.009 J 0.0054 J<0.0034 <0.0016-- -- -- 990 9,700SVOCs (8270E)Metals (6020B/7471B/7199)Arsenic3.23.31.0 1.2 1.3 1.3 1.6 0.68 3Barium16.6 18 13.7 13.268.1 21.8 86.83,100 47,000Cadmium0.051 J 0.057 J 0.063 J 0.081 J 0.050 J<0.0350.1 14 20Chromium (total)15.9 25.2 18.7 12.8 44.9 16.3 26.9 NE NEChromium (VI)0.321 J 0.518 J 1.14 J 0.516 J 1.39 0.691 J 1.04 J 0.31 6.5Chromium (III)15.579 24.682 17.56 12.284 43.51 15.609 25.86 23,000 350,000Lead4.6 5.1 3.7 5.3 12.7 4.3 40.3 400 800Mercury<0.011 <0.0110.016 J<0.0110.028 0.024 0.039 2.3 9.7Selenium<0.110.16 J<0.12 <0.110.36 J 0.23 J 0.35 J 78 1,200Silver<0.18 <0.17 <0.19 <0.19 <0.15 <0.16 <0.1678 1,200Notes:1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) dated January 2022Sediment concentrations are reported in milligrams per kilogram (mg/kg).Compound concentrations are reported to the laboratory method detection limits.Chromium III is a calculated valueLaboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the Residential PSRGs, and Site-specific background levels in the case of metals.Underlined values exceed Industrial/Commercial PSRGs, and Site-specific background levels in the case of metals.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds -- = not applicable; BDL = below the laboratory method detection limitJ = estimated value between the laboratory detection limit and the laboratory reporting limitUpstreamSite-Specific BackgroundDEQ PSRGs (1)Unnamed Tributary of Derita BranchScreening Criteriamg/kgResidential PSRGs Industrial/Commercial PSRGsSED-1/SED-DUP3/21/2022-- -- -- --ALL BDL ALL BDL ALL BDL All BDL--https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Embrey (EMB)/EMB.005 3027 N Tryon Street Brownfields/Tables/Data Tables9/16/2022Table 5 (Page 1 of 1)Hart & Hickman, PC
Table 6Summary of Exterior and Sub-Slab Soil Gas Analytical DataFormer Moss Trucking CompanyCharlotte, North CarolinaBrownfields Project No. 26008-22-060H&H Job No. EMB-005Sample IDSG-1 SG-2 SG-3 SG-4 SG-5 SG-7 SG-8 SG-9 SG-10 SG-11 SG-12 SG-13Date5/18/2022 5/18/2022 5/18/2022 5/18/20225/18/2022 5/18/2022 5/18/2022 5/18/20225/18/2022 5/18/2022 5/18/2022 5/18/2022UnitsVOCs (TO-15)Acetone 29.4 201 45.4 52.1 73.0 89.8 159 119<3.8391 50.5 26.1 22.6 35.8 NE NEBenzene 2.295.5 26.2 90.6 130 56.8 64.2 114 35.5 44.3 1200.77 2.2 1.3 12 160Bromodichloromethane<0.52 <0.43 <0.58 <0.47 <0.54 <0.501.1 J<0.49 <0.50 <15.3 <0.50 <0.49 <0.49 <0.532.5 332-Butanone (MEK) 11.1 33.9<1.1<0.9223.7 33.1 27.8 48.4<0.98 <30.0 <0.984.6 J 4.4 J<1.035,000 44,000Carbon Disulfide 1.8 108 268 295 496 206 193 216 162 234 350 3.7 0.77 J<0.294,900 61,000Carbon Tetrachloride<0.610.64 J<0.690.75 J 0.99 J 0.76 J 1.2 J 0.79 J<0.59 <18.10.64 J<0.58 <0.581.2 J 16 200Chlorobenzene<0.34 <0.281.8 J<0.310.68 J<0.33 <0.33 <0.32 <0.33 <10 <0.33 <0.32 <0.32 <0.35350 4,400Chloroethane<0.490.87 J 6.1 2.4 0.83 J<0.47 <0.472.4<0.47 <14.4 <0.47 <0.46 <0.46 <0.5028,000 350,000Chloroform<0.40 <0.337.4<0.36 <0.4272.994.8<0.38 <0.38 <11.8 <0.38 <0.38 <0.38 <0.414.1 53Chloromethane 1.8 0.41 J<0.213.7 1.9 1.6<0.181.5<0.18 <5.5 <0.180.35 J<0.182.5 630 7,900Cyclohexane 5.4 35.4 34.2 145 45.1 24.7<0.4667.1 30.0<14.322.1 4.1 1.5 J<0.507,000 88,0001,2-Dichlorobenzene<0.89 <0.748.9 2.2 J<0.93 <0.85 <0.85 <0.83 <0.85 <26.1 <0.85 <0.83 <0.83 <0.911,400 18,0001,4-Dichlorobenzene 4.2 J 3.6 J 6.1 J<1.7 <2.0 <1.8 <1.8 <1.8 <1.8 <56.6 <1.8 <1.8 <1.8 <2.08.5 110Dichlorodifluoromethane 3.1 2.6 2.1 J 2.1 2.1 J 2.2 2.6 2.0 J 2.0 J<12.13.1 2.3 2.9 12.3 700 8,8001,1-Dichloroethane<0.36 <0.3023,000<0.33213<0.35 <0.35 <0.34 <0.35 <10.6 <0.35 <0.34 <0.34 <0.3758 7701,2-Dichloroethane<0.42 <0.3612.3<0.38 <0.44 <0.41 <0.41 <0.40 <0.41 <12.5 <0.41 <0.40 <0.40 <0.433.6 471,1-Dichloroethene<0.30 <0.25661<0.273.6<0.29 <0.29 <0.28 <0.29 <8.9 <0.29 <0.28 <0.28 <0.311,400 18,000cis-1,2-Dichloroethene<0.43 <0.3619.2 0.64 J<0.45 <0.41 <0.41 <0.40 <0.41 <12.6 <0.41 <0.40 <0.40 <0.44NE NE1,2-Dichloropropane<0.59 <0.496.4<0.53 <0.62 <0.56 <0.56 <0.55 <0.56 <17.4 <0.56 <0.55 <0.55 <0.6025 330Dichlorotetrafluoroethane<0.44 <0.37 <0.50 <0.40 <0.46 <0.42 <0.42 <0.42 <0.42 <13.0 <0.420.42 J<0.42 <0.45NE NEEthanol 54.7 13.9 17.2 7.5 26.0 22.3 27.5 7.5 6.0<38.223.2 8.7 9.2 67.2 NE NEEthyl Acetate 62.7 3.2 J 2.7 J<0.26 <0.3011.0 19.4<0.27 <0.28 <8.4 <0.281.4 J<0.27 <0.29490 6,100Ethylbenzene 2.2 J94.1 J17.192.9 215 171 195 131 59.4 169 1801.2 J<0.64 <0.6937 4904-Ethyltoluene<1.055.9 6.8 24.7 67.1 29.6 33.4 27.1 13.1 80.0 J 38.9 1.2 J<0.97 <1.1NE NEHeptane<0.4043.6 22.2 160 99.3 63.5 78.6 161 39.5 181 35.1 0.72 J<0.37 <0.412,800 35,000Hexachloro-1,3-butadiene 2.9 J 3.6 J5.3 J<2.43.5 J 2.9 J<2.6 <2.5 <2.6 <79.3 <2.6 <2.5 <2.5 <2.84.3 56n-Hexane 5.6 38.4 48.9 255 72.1 103 114 106 70.6 218 55.4 1.0 J<0.392.7 4,900 61,0002-Hexanone<0.975.8 J 4.2 J<0.88 <1.0 <0.93 <0.93 <0.914.2 J<28.5 <0.93 <0.91 <0.91 <0.99210 2,600Methylene Chloride 13.8<1.11.5 J<1.2 <1.41.3 J 4.2 J<1.2 <1.2 <38.2 <1.2 <1.2 <1.22.1 J 3,400 53,0004-Methyl-2-pentanone (MIBK) 1.0 J 33.6 5.7 J 20.3 9.7 5.9 J<0.6717.6 4.0 J<20.7 <0.67 <0.66 <0.66 <0.7221,000 260,000Methyl-tert-butyl ether (MTBE) 2.1 J<0.23 <0.31 <0.2521.9<0.26 <0.26 <0.26 <0.26 <8.1 <0.260.35 J<0.26 <0.28360 4,700Naphthalene5.2 J 7.9 8.1 5.9<5.05.4 J<4.67.0 5.0 J<140 <4.6 <4.5 <4.5 <4.92.8 362-Propanol 32.2 3.4 J<1.3 <1.06.2 3.9 J 5.1 J 5.0 J<1.1 <32.810.6 11.3 4.3 J 13.2 1,400 18,000Propylene<0.28111 2,000 1,910 232 127 92.58881,010 3,020<0.272.1<0.27 <0.2921,000 260,000Styrene 2.4 J 3.9 J 2.9 J 6.4 5.1 2.5 J<0.819.1<0.81 <24.8 <0.81 <0.79 <0.79 <0.867,000 88,000Tetrachloroethene (PCE) 0.77 J 6.5 6.4 4.2 9.5 4.6 4.0 5.4 3.1<18.86.4 8.0 3.5<0.65280 3,500Tetrahydrofuran<0.392.8<0.44 <0.36 <0.413.6<0.38 <0.37 <0.38 <11.6 <0.38 <0.37 <0.37 <0.4014,000 180,000Toluene 6.4 369 80.9 474 1,150 1,770 2,160 710 244 583 1,970 13.4 1.4 J 5.5 35,000 440,0001,2,4-Trichlorobenzene15.4 J13.4 J<12.013.8 J<11.214.6 J<10.2 <10.114.1 J<315 <10.2 <10.1 <10.1 <10.914 1801,1,1-Trichloroethane<0.41 <0.34 <0.46 <0.370.55 J<0.39 <0.39 <0.38 <0.39 <12.0 <0.39 <0.38 <0.38 <0.4235,000 440,000Trichloroethene (TCE)<0.430.38 J19.81.9<0.45 <0.41 <0.41 <0.401.1 J<12.6 <0.41 <0.403.5<0.4414 180Trichlorofluoromethane 1.4 J 1.5 J 1.2 J 1.7 J 1.4 J 1.4 J 2.3 J 1.2 J 0.96 J<15.02.0 J 2.1 J 1.7 J 3.9 NE NE1,1,2-Trichlorotrifluoroethane 0.78 J 1.1 J 0.80 J 1.3 J 0.75 J 1.1 J 0.69 J 0.82 J 0.69 J<18.60.72 J<0.600.71 J 1.4 J 35,000 440,0001,2,4-Trimethylbenzene 2.4 13710.2 56.2 149 49.7 61.9 52.2 18.6<22.854.7<0.73 <0.731.9 J 420 5,3001,3,5-Trimethylbenzene 2.0 J 38.9 5.417.7 44.5 15.5 18.4 20.0 3.7 55.0 J 11.4<0.60 <0.60 <0.65420 5,300Vinyl Chloride <0.190.7787.9 5.90.90<0.18 <0.183.2<0.18 <5.6 <0.18 <0.18 <0.18 <0.195.6 280Xylene (Total) 6.9 477 71 410923698825428 212.4 2378235.9 J 4.0 J 6.2 J 700 8,800DEQ Cumulative Risk Calculator (2)LICR (Residential use worst-case)Non-Carcinogenic HI (Residential use worst-case)Notes:1) North Carolina Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Vapor Intrusion Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) dated January 2022 and based upon TCR = 1 x 10-6 and THQ = 0.22) DEQ DWM Cumulative Risk Calculator dated January 2022.Compound concentrations are reported in micrograms per cubic meter (μg/m3)Compound concentrations are reported to the laboratory method detection limits.Only those compounds detected in at least one sample are shown in the table above.Laboratory analytical method shown in parentheses.Bold indicates compound concentration exceeds Residential SGSLs.Underline indicates compound concentration exceeds Non-Residenital SGSL.VOCs = volatile organic compounds; NE = not establishedLICR = Lifetime Incremental Cancer Risk; HI = Hazard Index; TCR = target carcinogenic risk; THQ = target hazard quotientCumulative LICR and HI calculated using the residential worst-case scenario and compared to DEQ and EPA acceptable carcinogenic and non carcinogenic risk levels.J = estimated value between the laboratory detection limit and the laboratory reporting limitAcceptable Risk Levels<1 x 10-4<1.0Non-Residential SGSLs (1)µg/m34.6 x 10-41.5Residential SGSLs (1)SG-6 / SG-DUP5/18/2022https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Embrey (EMB)/EMB.005 3027 N Tryon Street Brownfields/Tables/Data Tables9/16/2022Table 6 (Page 1 of 1)Hart & Hickman, PC
Table 7Summary of Subsurface Methane Gas MeasurementsFormer Moss Trucking CompanyCharlotte, North CarolinaBrownfields Project No. 26008-22-060H&H Job No. EMB-005% % LELBarometric (in. Hg)Static (in. H₂O)5/18/2022 13:37 20.6 0.9 0.0 0.0 0.0 0.0 29.39 -0.035/19/2022 14:30 22.0 0.1 0.0 0.0 0.0 0.0 29.21 0.015/18/2022 10:20 16.7 0.2 0.0004 0.0002 0.0 0.0 29.31 0.05/19/2022 11:20 17.8 0.2 0.0 0.0001 0.0 0.0 29.09 -0.015/18/2022 11:16 19.1 0.2 0.0065 0.0005 0.0 0.0 29.36 0.285/19/2022 11:42 19.2 0.1 0.0 0.0001 0.0 0.0 28.89 -0.025/18/2022 11:29 13.1 0.6 0.004 0.0001 0.0 0.0 29.38 0.025/19/2022 12:00 13.4 0.7 0.0 0.0001 0.0 0.0 29.19 0.05/18/2022 10:45 16.0 0.0 0.007 0.0002 0.0 0.0 29.35 -0.035/19/2022 11:28 17.3 0.0 0.0018 0.0001 0.0 0.0 29.13 0.05/18/2022 12:22 13.3 0.2 0.0006 0.0 0.0 0.0 29.38 0.05/19/2022 12:53 17.1 0.3 0.0007 0.0 0.0 0.0 29.20 0.05/18/2022 11:47 9.1 0.7 0.0011 0.0 0.2 4.0 29.36 -0.025/19/2022 12:14 5.3 1.7 0.0 0.0001 0.5 10.0 29.21 0.015/18/2022 11:58 5.9 3.4 0.0 0.0 0.0 0.0 29.38 0.065/19/2022 12:33 4.2 5.0 0.0 0.0 0.0 0.0 29.19 0.05/18/2022 12:11 16.9 0.3 0.0188 0.0004 0.0 0.0 29.36 -0.045/19/2022 12:41 18.3 0.3 0.0006 0.0 0.0 0.0 29.19 0.015/18/2022 9:43 18.0 0.1 0.0 0.0 0.0 0.0 29.20 0.015/19/2022 11:14 18.8 0.4 0.0 0.0 0.1 2.0 29.04 -0.025/18/2022 13:57 8.4 1.6 0.0 0.0 0.0 0.0 29.33 -0.015/19/2022 14:51 9.2 10.0 0.0 0.0 0.0 0.0 29.15 -0.015/18/2022 13:29 20.6 0.4 0.0 0.0 0.0 0.0 29.39 0.05/19/2022 14:18 19.8 0.4 0.0 0.0 0.0 0.0 29.18 0.05/18/2022 13:07 9.9 9.9 0.0 0.0 0.0 0.0 29.37 -0.045/19/2022 13:39 10.3 9.9 0.0 0.0 0.0 0.0 29.16 -0.01Notes:Measurements were collected by H&H using a calibrated Landtec GEM 5000Positive static pressure values indicate that subsurface pressure is greater than ambient air pressureO2= Oxygen; CO2 = Carbon Dioxide; CO = Carbon Monoxide; H2S = Hydrogen Sulfidein H₂O = Inches of Water; % = Percent By Volume of Air; ppm-v = parts per million-volumeSG-11SG-12SG-13SG-2SG-8SG-9SG-10SG-5SG-6SG-7SG-1SG-3SG-4H2S (%)Methane PressureSample ID Sample Date Sample TimeO2 (%) CO2 (%)CO (%)https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Embrey (EMB)/EMB.005 3027 N Tryon Street Brownfields/Tables/Data Tables9/16/2022Table 7 (Page 1 of 1)Hart & Hickman, PC
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
Site-Wide Worst Case
North Carolina Department of Environmental Quality
Risk Calculator
Former Moss Trucking Co.
3027 and 3035 N. Tryon St and 151 Atando Ave, Charlotte, NC
Brownfields
26008-22-060
January 2022
November 2021 EPA RSL Table
Prepared By:
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: January 2022
Basis: November 2021 EPA RSL Table
Site ID: 26008-22-060
Exposure Unit ID: Site-Wide Worst Case
Receptor Pathway
Carcinogenic
Risk Hazard Index Risk exceeded?
Soil 0.0E+00 0.0E+00 NO
Groundwater Use* NC NC NC
Soil 0.0E+00 0.0E+00 NO
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 0.0E+00 0.0E+00 NO
Soil Gas to Indoor Air 4.6E-04 1.5E+00 YES
Indoor Air 0.0E+00 0.0E+00 NO
Groundwater to Indoor Air 0.0E+00 0.0E+00 NO
Soil Gas to Indoor Air 3.4E-05 1.2E-01 NO
Indoor Air 0.0E+00 0.0E+00 NO
Pathway Source
Source Soil NM
Source Groundwater NM
Source Soil NM
Source Groundwater NM
3. NM = Not Modeled
4. NC = Pathway not calculated
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: January 2022
Basis: November 2021 EPA RSL Table
Site ID: 26008-22-060
Exposure Unit ID: Site-Wide 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 391 11.73 - -
71-43-2 Benzene 120 3.6 3.6E-01 6.3E+00 1.0E-05 1.2E-01
75-27-4 Bromodichloromethane 1.1 0.033 7.6E-02 - 4.3E-07
75-15-0 Carbon Disulfide 496 14.88 - 1.5E+02 2.0E-02
56-23-5 Carbon Tetrachloride 1.2 0.036 4.7E-01 2.1E+01 7.7E-08 3.5E-04
108-90-7 Chlorobenzene 1.8 0.054 - 1.0E+01 1.0E-03
67-66-3 Chloroform 94.8 2.844 1.2E-01 2.0E+01 2.3E-05 2.8E-02
74-87-3 Chloromethane 3.7 0.111 - 1.9E+01 1.2E-03
110-82-7 Cyclohexane 145 4.35 - 1.3E+03 7.0E-04
95-50-1 Dichlorobenzene, 1,2- 8.9 0.267 - 4.2E+01 1.3E-03
106-46-7 Dichlorobenzene, 1,4- 6.1 0.183 2.6E-01 1.7E+02 7.2E-07 2.2E-04
75-71-8 Dichlorodifluoromethane 12.3 0.369 - 2.1E+01 3.5E-03
75-34-3 Dichloroethane, 1,1- 23000 690 1.8E+00 -3.9E-04
107-06-2 Dichloroethane, 1,2- 12.3 0.369 1.1E-01 1.5E+00 3.4E-06 5.1E-02
75-35-4 Dichloroethylene, 1,1- 661 19.83 - 4.2E+01 9.5E-02
156-59-2 Dichloroethylene, cis-1,2- 19.2 0.576 - -
78-87-5 Dichloropropane, 1,2- 6.4 0.192 7.6E-01 8.3E-01 2.5E-07 4.6E-02
141-78-6 Ethyl Acetate 62.7 1.881 - 1.5E+01 2.6E-02
75-00-3 Ethyl Chloride (Chloroethane) 6.1 0.183 - 8.3E+02 4.4E-05
100-41-4 Ethylbenzene 215 6.45 1.1E+00 2.1E+02 5.7E-06 6.2E-03
109-99-9 ~Tetrahydrofuran 3.6 0.108 - 4.2E+02 5.2E-05
142-82-5 Heptane, N- 181 5.43 - 8.3E+01 1.3E-02
87-68-3 Hexachlorobutadiene 5.3 0.159 1.3E-01 -1.2E-06
110-54-3 Hexane, N- 255 7.65 - 1.5E+02 1.0E-02
591-78-6 Hexanone, 2- 5.8 0.174 - 6.3E+00 5.6E-03
67-63-0 Isopropanol 32.2 0.966 - 4.2E+01 4.6E-03
78-93-3 Methyl Ethyl Ketone (2-Butanone) 48.4 1.452 - 1.0E+03 2.8E-04
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone) 33.6 1.008 - 6.3E+02 3.2E-04
1634-04-4 Methyl tert-Butyl Ether (MTBE) 21.9 0.657 1.1E+01 6.3E+02 6.1E-08 2.1E-04
75-09-2 Methylene Chloride 13.8 0.414 1.0E+02 1.3E+02 4.1E-09 6.6E-04
91-20-3 ~Naphthalene 8.1 0.243 8.3E-02 6.3E-01 2.9E-06 7.8E-02
115-07-1 Propylene 3020 90.6 - 6.3E+02 2.9E-02
100-42-5 Styrene 9.1 0.273 - 2.1E+02 2.6E-04
127-18-4 Tetrachloroethylene 9.5 0.285 1.1E+01 8.3E+00 2.6E-08 6.8E-03
108-88-3 Toluene 2160 64.8 - 1.0E+03 1.2E-02
76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2- 1.4 0.042 - 1.0E+03 8.1E-06
120-82-1 Trichlorobenzene, 1,2,4- 15.4 0.462 - 4.2E-01 2.2E-01
71-55-6 Trichloroethane, 1,1,1- 0.55 0.0165 - 1.0E+03 3.2E-06
79-01-6 Trichloroethylene 19.8 0.594 4.8E-01 4.2E-01 1.2E-06 2.8E-01
75-69-4 Trichlorofluoromethane 3.9 0.117 - -
95-63-6 Trimethylbenzene, 1,2,4- 149 4.47 - 1.3E+01 7.1E-02
108-67-8 Trimethylbenzene, 1,3,5- 55 1.65 - 1.3E+01 2.6E-02
75-01-4 Vinyl Chloride 87.9 2.637 1.7E-01 1.7E+01 1.6E-05 3.2E-02
1330-20-7 Xylenes 923 27.69 - 2.1E+01 2.7E-01
Cumulative:4.6E-04 1.5E+00
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Attachment B
Brownfields Assessment Report
#C-1269 Engineering #C-245 Geology
Brownfields Assessment Report
Moss Trucking Company
North Tryon Street and Atando Avenue
Charlotte, North Carolina
Brownfields Project No. 26008-22-060
H&H Job No. EMB-005 October 19, 2023
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Brownfields Assessment Report Moss Trucking Company Charlotte, North Carolina Brownfields Project No. 26008-22-060 H&H Job No. EMB-005 Table of Contents
1.0 Introduction and Background ...............................................................................................1
2.0 Brownfields Assessment Activities ........................................................................................2
2.1 Sub-Slab Soil Gas Sampling Methodologies ........................................................................2
2.2 Sub-Slab Soil Gas Sampling Results .....................................................................................3
2.3 Vapor Intrusion Evaluation ...................................................................................................5
3.0 Quality Assurance – Quality Control ....................................................................................6
4.0 Summary and Conclusions ....................................................................................................7
List of Tables
Table 1 Summary of Sub-Slab Soil Gas Analytical Data

List of Figures

Figure 1 Site Location Map
Figure 2 Sub-Slab Soil Gas Sample Location Map
List of Appendices
Appendix A Field Sampling Forms
Appendix B Laboratory Analytical Report
Appendix C DEQ Risk Calculator Output
1
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Brownfields Assessment Report Moss Trucking Company Charlotte, North Carolina Brownfields Project No. 26008-22-060 H&H Job No. EMB-005
1.0 Introduction and Background

On behalf of Embrey Partners, LLC (Prospective Developer or PD), Hart & Hickman, PC
(H&H) has prepared this Brownfields Assessment Report to document assessment activities
completed at the Moss Trucking Company Brownfields property (Brownfields Redevelopment
Section Project No. 26008-22-060) located at 3027 and 3035 N. Tryon Street and 151 Atando
Avenue in Charlotte, Mecklenburg County, North Carolina (Site). The Site consists of four
contiguous parcels (Parcel Identification Numbers: 08502101, 08502102, 08502103, and
08502104) that collectively total approximately 7.0 acres of land located in a rapidly densifying
area of the North Davidson (NoDa) neighborhood approximately 2-miles northeast of uptown
Charlotte. The Site is planned for redevelopment with a new high-density multi-family
residential apartment building and associated parking garage. A Site location map is provided as
Figure 1, and the Site with proposed building overlay is shown on Figure 2.

This report is being submitted as Attachment B to Revision-1 of the Vapor Intrusion Mitigation
Plan (VIMP) for the Site. Additional details on the Site background and assessment history,
including a discussion of a Phase II Environmental Site Assessment conducted at the Site in
2022, are provided in the VIMP. The Brownfields assessment activities included the installation
and sampling of four sub-slab soil gas samples as requested by DEQ during their review of
Revision 0 of the VIMP, submitted on January 11, 2023.

The assessment activities included herein were completed in accordance with the DEQ
Brownfields-approved Work Plan dated August 2, 2023. The methods and results of the
Brownfields assessment activities are summarized in the following sections.
2
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2.0 Brownfields Assessment Activities

On September 13, 2023, H&H installed and sampled four (4) temporary sub-slab soil gas
sampling points (SSV-1 through SSV-) within the existing service garage to establish baseline
compound concentrations in soil gas below the existing building prior to demolition in
preparation of Site redevelopment. The sub-slab soil gas sample locations are presented on
Figure 2.

The assessment activities were performed in general accordance with the DEQ Inactive
Hazardous Sites Branch (IHSB) Guidelines for Assessment and Cleanup of Contaminated Sites
(Guidelines) dated July 2021, the DEQ DWM Vapor Intrusion Guidance (VI Guidance) dated
March 2018, and the most recent versions of the U.S. Environmental Protection Agency (EPA)
Region IV Laboratory Services and Applied Science Division (LSASD) guidance.

Prior to conducting field activities, H&H contacted North Carolina 811, the public utility locator,
to mark subsurface utilities at the Site. H&H also contracted with a private utility locator to
mark utilities within the service garage which were not identified by the public locator. The
private utility locator utilized ground penetrating radar (GPR) survey techniques to identify and
mark utilities.

2.1 Sub-Slab Soil Gas Sampling Methodologies
H&H installed four (4) sub-slab soil gas sample points (SSV-1 through SSV-4) for collection of
a soil gas sample beneath the existing slab in the service garage (southwestern portion of the
Site). Note that the sub-slab soil gas sampling points are located within the proposed building
footprint. The sampling points were installed using a rotary hammer drill and 1½-inch diameter
drill bit to advance a pilot hole into the concrete slab to a depth of approximately 1¾ inches
below the surface. A drill guide was then placed in the pilot hole, and a 5/8-inch diameter drill
bit was utilized to advance the boring through the concrete slab and approximately 6 inches into
the underlying soil. Following concrete borehole advancement, loose concrete cuttings were
removed from each boring, and a Cox-Colvin Vapor Pin™ (vapor pin) assembly (brass sampling
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point and silicone sleeve) were seated in the borehole using an installation/extraction tool and
dead blow hammer. Upon installation of the vapor pin assembly, dedicated ¼-inch Teflon®
sample tubing was connected to the barbed end of the sample point.

Prior to sampling, a leak check was conducted at each sub-slab soil gas monitoring point by
constructing a shroud around the sampling system and flooding the air within the shroud with
helium gas. Helium concentrations inside the shroud were measured using a helium gas detector
and were maintained between approximately 15.8% and 16.4%. Using a syringe and three-way
valve, each sub-slab soil gas monitoring pointing point was purged and a sample was collected
from the sample tubing outside the shroud and analyzed using the helium gas detector to confirm
helium concentrations were less than 10% of the helium concentrations measured within the
shroud. Each of the sub-slab soil gas sampling points passed the helium leak check criteria. Soil
gas sampling forms completed by field personnel are included in Appendix A.

Following successful leak checks, the soil gas samples were collected by opening the intake
valve on the Summa® canister. Vacuum readings on the Summa® canister were recorded prior to
and following the sampling period to ensure adequate sample volume was collected. A vacuum
of approximately 5 inches of mercury or more was maintained within the canisters at the
conclusion of the sampling event in accordance with DEQ DWM guidance. Following sample
collection, the Summa® canisters were shipped to Con-Test Analytical Laboratory (Con-Test)
under standard chain-of-custody protocols for analysis of volatile organic compounds (VOCs) by
EPA Method TO-15. Upon receipt of the samples, the laboratory recorded the final received
vacuum pressure for each Summa® canister.

Following sample collection, the vapor pins were removed and the concrete was patched to
match the surrounding surface. H&H measured the sub-slab soil gas sample locations relative to
known interior benchmarks including walls and doorways.

2.2 Sub-Slab Soil Gas Sampling Results

A tabular summary of the sub-slab soil gas sample analytical results is provided as Table 1.
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Laboratory analytical results for the soil gas samples were compared to DEQ DWM Residential
and Non-Residential Vapor Intrusion Sub-Slab and Exterior Soil Gas Screening Levels (SGSLs)
dated July 2023. A copy of the laboratory analytical report and chain of custody record is
provided in Appendix B.

Laboratory analytical results indicate the presence of multiple VOCs at concentrations above
Residential SGSLs in sub-slab soil gas samples collected at the Site. The following compounds
were detected at concentrations above the SGSLs in at least one sample:

• Bromodichloromethane was detected in sub-slab soil gas sample SSV-1 at a
concentration of 13 micrograms per cubic meter (µg/m3) which is above the Residential
SGSL of 2.5 µg/m3.

• Chloroform was detected above the Residential SGSL of 4.1 µg/m3 in sub-slab soil gas
sample SSV-1 (140 µg/m3).

• 1,4-Dioxane was detected above the Residential SGSL of 19 µg/m3 in sub-slab soil gas
samples SSV-1 (140 µg/m3) and SSV-2 / SSV-DUP (31 µg/m3 / 34 µg/m3).

• Naphthalene was detected above the Residential SGSL of 2.8 µg/m3 in sub-slab soil gas
samples SSV-1 (2.9 µg/m3) and SSV-3 (64 µg/m3).

• Tetrachloroethane (PCE) was detected above the Residential SGSL of 280 µg/m3 in sub-
slab soil gas samples SSV-2 / SSV-DUP (1,100 µg/m3 / 1,000 µg/m3) and SSV-3 (350
µg/m3).

• TCE was detected above the Residential SGSL of 14 µg/m3 in sub-slab soil gas samples
SSV-2 / SSV-DUP (21 µg/m3 / 22 µg/m3) and SSV-3 (32 µg/m3).

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2.3 Vapor Intrusion Evaluation
The DEQ SGSLs are very conservative and based upon a Target Cancer Risk (TCR) of 1 x 10-6
for potential carcinogenic effects and a Target Hazard Quotient (THQ) of 0.2 for potential non-
carcinogenic effects. The DEQ and EPA acceptable risk level for potential carcinogenic risks is
a cumulative lifetime incremental cancer risk (LICR) of 1 x 10-4 or less and the acceptable risk
level for potential non-carcinogenic risks is a calculated cumulative hazard index (HI) of 1.0 or
less.

H&H utilized the DEQ Risk Calculator (July 2023) assuming a residential land use scenario to
further evaluate potential cumulative risks for the sub-slab soil gas to indoor air vapor intrusion
pathway for the proposed residential development. H&H calculated the cumulative risks using
the highest concentration of any compound detected in any sub-slab soil gas sample collected at
the Site to evaluate the potential for vapor intrusion under a hypothetical “worst case” scenario.

Risk calculator results indicate that under a hypothetical “worst case” scenario for the soil gas to
indoor air vapor intrusion pathway the cumulative LICR is 7.6 x 10-5 and the cumulative HI is
2.1. These risk calculator results indicate that although the cumulative LICR is within the
acceptable risk level of 1 x 10-4, the non-carcinogenic HI is 2.1, which exceeds the acceptable
limit of 1. Copies of the completed risk calculators are provided in Appendix C.
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3.0 Quality Assurance – Quality Control

For quality assurance and quality control purposes (QA/QC), a field QA/QC sample was
analyzed along with the investigative samples to determine potential variability introduced in
sampling, handling, shipping, and analysis. H&H collected a duplicate sub-slab soil gas sample
that was submitted for analysis of VOCs by EPA Method TO-15.
The field duplicate sample (SSV-DUP) was collected from sub-slab monitoring point SSV-2.
The duplicate sample was collected concurrently with the parent sample using a laboratory
supplied “T” fitting. The sample was analyzed for the same parameters as the original sample,
and the analytical results were compared with those of the original sample. The analytical results
of the original sample and the duplicate sample were used to evaluate the cumulative precision of
the analytical method, sample matrix, and sample collection techniques.

The results of the duplicate sample are presented in Table 1, and indicate that SSV-2 and its
duplicate contained similar concentrations. Based on the duplicate sample results the precision
of sampling event is acceptable.
Upon review of the laboratory analytical report, the following data qualifiers were noted for
select compounds for select samples:

• (E) – Reported result is estimated. Value reported over verified calibration range.
• (L-03) – Laboratory fortified blank/laboratory control sample recovery is outside of
control limits. Reported value for this compound is likely to be biased on the low side.
• (V-36) –Initial calibration verification (ICV) did not meet method specifications and was
biased on the high side. Data validation is not affected since sample result was "not
detected" for this compound.
• (Z-01) – Calibrations Relative Standard Deviation for this compound is >30% but <40%.

After a review of the QA/QC data in the laboratory report and discussions with the laboratory,
the qualifiers listed above do not appear to significantly affect the quality of the data produced.
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4.0 Summary and Conclusions

H&H completed Brownfields assessment activities at the Moss Trucking Company Brownfields
property located in Charlotte, North Carolina. The Brownfields assessment activities included
the collection of sub-slab soil gas samples for laboratory analysis. A brief summary of the
Brownfields assessment activities is provided below.

H&H installed and sampled four (4) sub-slab soil gas monitoring points (SSV-1 through SSV-4)
at the Site. The sub-slab soil gas samples were collected within the service garage, which is an
existing building located within the proposed high-density apartment building footprint.

Results of soil gas sampling identified bromodichloromethane, chloroform, 1,4-dioxane,
naphthalene, PCE, and TCE at concentrations above the Residential SGSLs in at least one
sample.

Using the highest concentration of any compound detected in sub-slab soil gas, residential use
risk calculator results for the soil gas to indoor air vapor intrusion pathway indicate that the
cumulative HI value exceeds the DEQ and EPA acceptable level 1.

In order to minimize the potential for structural vapor intrusion into the proposed building, the
PD plans to install a vapor intrusion mitigation system (VIMS) during construction of the
proposed residential building at the Site.

Table 1Summary of Sub-Slab Soil Gas Analytical DataMoss Trucking CompanyCharlotte, North CarolinaBrownfields Project No. 26008-22-060H&H Job No. EMB-005Sample IDSSV-1 SSV-3 SSV-4Date9/13/2023 9/13/2023 9/13/2023UnitsVOCs (TO-15)Acetone 200 100 90 310 69 NEBenzene 0.36 J 0.69 0.63 J 3.0 0.63 J 12Bromodichloromethane13<0.36 <0.36 <0.36 <0.362.52-Butanone (MEK) 25 12 J 11 J 72 14 J 35,000Carbon Disulfide<1.21.5 J<1.236 36 4,900Chloroform1400.57 J 0.61 J 0.35 J 0.55 J 4.1Chloromethane 0.28 J 0.21 J 0.22 J 0.35 J 0.33 J 630Cyclohexane 0.94<0.300.34 J 23 2.2 42,000Dichlorodifluoromethane (Freon 12) 1.4 1.5 1.5 1.1 1.3 7001,1-Dichloroethane 2.1 0.49 J 0.52 J 0.55 J<0.2658cis-1,2-Dichloroethylene<0.24 <0.24 <0.241.5<0.242801,4-Dioxane140 31 34<3.5 <3.519Ethanol 2,100 E 210 200 150 55 NEEthylbenzene 0.47 J 0.26 J 0.35 J 8.1 0.90 374-Ethyltoluene 0.57 J<0.430.53 J 39 2.1 NEHeptane<0.52 <0.52 <0.5241 1.3 2,800Hexane<9.3 <9.3 <9.315 J<9.34,9002-Hexanone (MBK) 2.1 1.2 0.98<0.352.6 210Isopropanol 100 L-03 25 L-03 24 L-03 10 L-03, J 8.5 L-03, J 1,400Methyl tert-Butyl Ether (MTBE) 0.95<0.350.48 J<0.35 <0.353604-Methyl-2-pentanone (MIBK) 2.6 1.5 1.5<0.433.1 21,000Naphthalene2.9 Z-011.3 Z-01 1.7 Z-0164 Z-01<0.70 Z-012.8Propene<3.7 <3.7 <3.7110<3.721,000Styrene 0.46 J<0.46 <0.46 <0.461.3 7,000Tetrachloroethylene (PCE) 411,100 1,000 350190 280Toluene 1.4 1.0 1.1 8.5 2.8 35,0001,1,1-Trichloroethane 0.37 J 17 18<0.34 <0.3435,000Trichloroethylene (TCE) 1.421 22 322.5 14Trichlorofluoromethane (Freon 11) 1.2 J 1.0 J 0.97 J<0.460.65 J NE1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113) 0.43 J 0.43 J 0.40 J<0.340.37 J 35,0001,2,4-Trimethylbenzene 3.6 2.0 2.8<0.4512 4201,3,5-Trimethylbenzene 0.83 J 0.53 J 0.79 J<0.513.4 420Vinyl Chloride<0.23 <0.23 <0.230.26 J<0.235.6m&p-Xylene 1.9 0.92 J 1.0 J 16 3.1 700o-Xylene 1.5 0.57 J 0.68 J 10 2.1 700DEQ Cumulative Risk Calculator (2)Acceptable Risk LevelsLICR (Residential worst-case)<1 x 10-4Non-Carcinogenic HI (Residential worst-case)<1.0Notes:1) North Carolina Department of Environmental Quality (DEQ) Vapor Intrusion Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) dated July 2023.2) DEQ Cumulative Risk Calculator (dated July 2023) was used to calculate cumulative LICR and HI calculated using the highest concentration of any compound detected in any sample. Results are compared to the DEQ and EPA acceptable levels for potential carcinogenic and non-carcinogenic risks.Compound concentrations are reported in micrograms per cubic meter (μg/m3) and reported to the laboratory method detection limits.Only constituents detected in at least one sample are shown.Laboratory analytical method shown in parentheses.Bold value exceeds the Residential SGSL or acceptable levels for cumulative risks.VOCs = volatile organic compounds; NE = not established; LICR = Lifetime Incremental Cancer Risk; HI = Hazard IndexJ = Compound was detected above the laboratory method detection limit but below the laboratory reporting limit resulting in a laboratory estimated concentration. E = Reported value was detected over the calibration range and is a laboratory estimated concentration.L-03 = Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this compound is likely to be biased on the low side. Z-01 = Calibrations relative standard deviation for this compound is >30% but <40%.2.1Residential SGSLs (1)SSV-2 / SSV-DUP9/13/2023µg/m37.6 x 10-5https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Embrey (EMB)/EMB.005 3027 N Tryon Street Brownfields/Tables/Data Tables10/18/2023Table 1 (Page 1 of 1)Hart & Hickman, PC
USGS The National Map: National Boundaries Dataset, 3DEP ElevationProgram, Geographic Names Information System, National HydrographyDataset, National Land Cover Database, National Structures Dataset,and National Transportation Dataset; USGS Global Ecosystems; U.S.Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data;U.S. Department of State Humanitarian Information Unit; and NOAANational Centers for Environmental Information, U.S. Coastal ReliefModel. Data refreshed August, 2021.
SITE LOCATION MAP
MOSS TRUCKING COMPANY 3027 & 3035 NORTH TRYON STREET AND 151 ATANDO AVENUECHARLOTTE, NORTH CAROLINA
DATE: 7-31-23
JOB NO: EMB-005
REVISION NO: 0
FIGURE. 1
2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology
TITLE
PROJECT
0 2,000 4,000
SCALE IN FEET
Path: \\HHFS01\Redirectedfolders\sperry\My Documents\ArcGIS\PROJECTS\EMB-005\Figure 1.mxdN
U.S.G.S. QUADRANGLE MAP
CHARLOTTE EAST, NORTH CAROLINA 2019DERITA, NORTH CAROLINA 2019
QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC)
SITE

Appendix A Field Sampling Forms
EMB.005 HOC
4550
2625
2768
09/06/23 -29.5 16:42 -29.5
16:44 -29
16:39 -29.5
Yes -1Yes
09/06/23 16:39 -29-29 Yes 16:42 -29 Yes 0
4512 16:44 -29
09/06/232835
4513
16:40 -27.5-27.5 Yes 16:43 -27.5 Yes 0
16:45 -27.5
2908/2873 09/06/23
4682
16:40 -28
-28 Yes 16:43 -28 Yes 0
16:45 -28
EMB.005 HOC Cloudy, 70's
SSV-1
2625 SS Temp.Concrete 6 Clay N/A Full 09/13/23
11:45 75 Syringe 0.15 15.8 0 ppm Yes
4550
SSV-2/SSV-DUP
2908/2873 SS Temp.Concrete 6 Clay N/A Full 09/13/23
12:56 76 Syringe 0.15 16.1 0 ppm Yes
4682
SSV-3
2768 SS Temp.Concrete 6 Clay N/A Full 09/13/23
13:35 80 Syringe 0.15 16.4 0 ppm Yes
4512
SSV-4
2835 SS Temp.Concrete 6 Clay N/A Full 09/13/23
14:05 81 Syringe 0.15 16.1 0 ppm Yes
4513
EMB.005 HOC Cloudy, 70's
SSV-1 1 L2625 09/13/23 10
100 mL/min
12:00 -15.0
75 77 N/A
4550 12:06 -5.0
11:55 -29.0
N/A
SSV-2/SSV-DUP 1 L 13:02 -27.0
2908/2873 09/13/23 10 13:07 -15.5
76 73 N/A N/A
100 mL/min4682 13:12 -5.0
SSV-3 14:14 -27.51 L2768 09/13/23 10 80 67 N/A N/A
4512 100 mL/min
14:19 -14.0
14:25 -5.0
SSV-4 13:41 -29.01 L
2835 09/13/23 10 13:46 -18.0 80 68 N/A N/A
4513 100 mL/min 13:53 -5.0

Appendix B Laboratory Analytical Report
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
September 20, 2023
Brett Lawrence
Hart & Hickman - Charlotte, NC
2923 South Tryon Street, Suite 100
Charlotte, NC 28203
Project Location: Charlotte, NC
Client Job Number:
Project Number: EMB-005
Laboratory Work Order Number: 23I2032
Enclosed are results of analyses for samples as received by the laboratory on September 14, 2023. If you have any questions
concerning this report, please feel free to contact me.
Sincerely,
Rebecca Faust
Project Manager
QA Officer
Katherine Allen
Laboratory Manager
Daren Damboragian
Page 1 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL SUMMARY
9/20/2023Hart & Hickman - Charlotte, NC
2923 South Tryon Street, Suite 100
Charlotte, NC 28203
ATTN: Brett Lawrence
EMB-005
23I2032
The results of analyses performed on the following samples submitted to Con-Test, a Pace Analytical Laboratory, are found in this report.
PROJECT LOCATION:
PURCHASE ORDER NUMBER:
PROJECT NUMBER:
REPORT DATE:
WORK ORDER NUMBER:
FIELD SAMPLE #LAB ID:MATRIX TESTSAMPLE DESCRIPTION SUB LAB
Charlotte, NC
EMB-005
SSV-1 23I2032-01 Sub Slab -
EPA TO-15
SSV-2 23I2032-02 Sub Slab -
EPA TO-15
SSV-3 23I2032-03 Sub Slab -
EPA TO-15
SSV-4 23I2032-04 Sub Slab -
EPA TO-15
SSV-DUP 23I2032-05 Sub Slab -
EPA TO-15
Page 2 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CASE NARRATIVE SUMMARY
All reported results are within defined laboratory quality control objectives unless listed below or otherwise qualified in this report.
EPA TO-15
Qualifications:
Reported result is estimated. Value reported over verified calibration range.
Analyte & Samples(s) Qualified:
E
Ethanol
23I2032-01[SSV-1]
Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this compound is likely to be
biased on the low side.
Analyte & Samples(s) Qualified:
L-03
Isopropanol
23I2032-01[SSV-1], 23I2032-02[SSV-2], 23I2032-03[SSV-3], 23I2032-04[SSV-4], 23I2032-05[SSV-DUP], B352509-BLK1, B352509-BS1
Initial calibration verification (ICV) did not meet method specifications and was biased on the high side. Data validation is not affected since
sample result was "not detected" for this compound.
Analyte & Samples(s) Qualified:
V-36
Hexachlorobutadiene
B352509-BS1, S093633-CCV1
Calibrations RSD for this compound is >30% but <40%.
Analyte & Samples(s) Qualified:
Z-01
Naphthalene
23I2032-01[SSV-1], 23I2032-02[SSV-2], 23I2032-03[SSV-3], 23I2032-04[SSV-4], 23I2032-05[SSV-DUP], B352509-BLK1, B352509-BS1, S093633-CCV1
The results of analyses reported only relate to samples submitted to Con-Test, a Pace Analytical Laboratory, for testing.
I certify that the analyses listed above, unless specifically listed as subcontracted, if any, were performed under my direction according to the approved methodologies listed
in this document, and that based upon my inquiry of those individuals immediately responsible for obtaining the information, the material contained in this report is, to the
best of my knowledge and belief, accurate and complete.
Lisa A. Worthington
Technical Representative
Page 3 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 9/14/2023
Work Order: 23I2032Sample Description/Location:
Field Sample #: SSV-1
Sample ID: 23I2032-01
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -4.7
Sampled: 9/13/2023 12:06
Canister ID: 2625
Flow Controller ID: 4550
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 85 8.0 9/20/23 0:56 CMR200 4191.9 4.5
Benzene 0.11 0.20 9/20/23 0:56 CMRJ0.36 40.640.062 0.20
Benzyl chloride ND 0.20 9/20/23 0:56 CMRND41.00.11 0.56
Bromodichloromethane 1.9 0.20 9/20/23 0:56 CMR13 41.30.054 0.36
Bromoform ND 0.20 9/20/23 0:56 CMRND42.10.071 0.73
Bromomethane ND 0.20 9/20/23 0:56 CMRND40.780.11 0.41
1,3-Butadiene ND 0.20 9/20/23 0:56 CMRND40.440.17 0.37
2-Butanone (MEK)8.5 8.0 9/20/23 0:56 CMR25 4242.2 6.6
Carbon Disulfide ND 2.0 9/20/23 0:56 CMRND46.20.38 1.2
Carbon Tetrachloride ND 0.20 9/20/23 0:56 CMRND41.30.058 0.36
Chlorobenzene ND 0.20 9/20/23 0:56 CMRND40.920.050 0.23
Chloroethane ND 0.20 9/20/23 0:56 CMRND40.530.13 0.33
Chloroform 29 0.20 9/20/23 0:56 CMR140 40.980.052 0.25
Chloromethane 0.14 0.40 9/20/23 0:56 CMRJ0.28 40.830.082 0.17
Cyclohexane 0.27 0.20 9/20/23 0:56 CMR0.94 40.690.088 0.30
Dibromochloromethane ND 0.20 9/20/23 0:56 CMRND41.70.054 0.46
1,2-Dibromoethane (EDB)ND 0.20 9/20/23 0:56 CMRND41.50.067 0.51
1,2-Dichlorobenzene ND 0.20 9/20/23 0:56 CMRND41.20.070 0.42
1,3-Dichlorobenzene ND 0.20 9/20/23 0:56 CMRND41.20.074 0.45
1,4-Dichlorobenzene ND 0.20 9/20/23 0:56 CMRND41.20.074 0.44
Dichlorodifluoromethane (Freon 12)0.28 0.20 9/20/23 0:56 CMR1.4 40.990.084 0.42
1,1-Dichloroethane 0.52 0.20 9/20/23 0:56 CMR2.1 40.810.064 0.26
1,2-Dichloroethane ND 0.20 9/20/23 0:56 CMRND40.810.075 0.30
1,1-Dichloroethylene ND 0.20 9/20/23 0:56 CMRND40.790.057 0.23
cis-1,2-Dichloroethylene ND 0.20 9/20/23 0:56 CMRND40.790.062 0.24
trans-1,2-Dichloroethylene ND 0.20 9/20/23 0:56 CMRND40.790.065 0.26
1,2-Dichloropropane ND 0.20 9/20/23 0:56 CMRND40.920.055 0.25
cis-1,3-Dichloropropene ND 0.20 9/20/23 0:56 CMRND40.910.090 0.41
trans-1,3-Dichloropropene ND 0.20 9/20/23 0:56 CMRND40.910.10 0.47
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 9/20/23 0:56 CMRND41.40.080 0.56
1,4-Dioxane 39 2.0 9/20/23 0:56 CMR140 47.20.98 3.5
Ethanol 1100 8.0 9/20/23 0:56 CMRE2100 4155.3 10.0
Ethyl Acetate ND 2.0 9/20/23 0:56 CMRND47.20.58 2.1
Ethylbenzene 0.11 0.20 9/20/23 0:56 CMRJ0.47 40.870.058 0.25
4-Ethyltoluene 0.12 0.20 9/20/23 0:56 CMRJ0.57 40.980.087 0.43
Heptane ND 0.20 9/20/23 0:56 CMRND40.820.13 0.52
Hexachlorobutadiene ND 0.20 9/20/23 0:56 CMRND42.10.12 1.2
Hexane ND 8.0 9/20/23 0:56 CMRND4282.6 9.3
2-Hexanone (MBK)0.51 0.20 9/20/23 0:56 CMR2.1 40.820.087 0.35
Isopropanol 42 8.0 9/20/23 0:56 CMRL-03 100 4202.5 6.2
Methyl tert-Butyl Ether (MTBE)0.26 0.20 9/20/23 0:56 CMR0.95 40.720.098 0.35
Methylene Chloride ND 2.0 9/20/23 0:56 CMRND46.90.54 1.9
4-Methyl-2-pentanone (MIBK)0.64 0.20 9/20/23 0:56 CMR2.6 40.820.11 0.43
Naphthalene 0.54 0.20 9/20/23 0:56 CMRZ-01 2.9 41.00.13 0.70
Propene ND 8.0 9/20/23 0:56 CMRND4142.2 3.7
Styrene 0.11 0.20 9/20/23 0:56 CMRJ0.46 40.850.11 0.46
1,1,2,2-Tetrachloroethane ND 0.20 9/20/23 0:56 CMRND41.40.050 0.34
Page 4 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 9/14/2023
Work Order: 23I2032Sample Description/Location:
Field Sample #: SSV-1
Sample ID: 23I2032-01
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -4.7
Sampled: 9/13/2023 12:06
Canister ID: 2625
Flow Controller ID: 4550
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Tetrachloroethylene 6.0 0.20 9/20/23 0:56 CMR41 41.40.075 0.51
Tetrahydrofuran ND 2.0 9/20/23 0:56 CMRND45.90.41 1.2
Toluene 0.38 0.20 9/20/23 0:56 CMR1.4 40.750.073 0.27
1,2,4-Trichlorobenzene ND 0.20 9/20/23 0:56 CMRND41.50.11 0.80
1,1,1-Trichloroethane 0.068 0.20 9/20/23 0:56 CMRJ0.37 41.10.063 0.34
1,1,2-Trichloroethane ND 0.20 9/20/23 0:56 CMRND41.10.051 0.28
Trichloroethylene 0.26 0.20 9/20/23 0:56 CMR1.4 41.10.082 0.44
Trichlorofluoromethane (Freon 11)0.21 0.80 9/20/23 0:56 CMRJ1.2 44.50.082 0.46
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.056 0.80 9/20/23 0:56 CMRJ0.43 46.10.044 0.34
1,2,4-Trimethylbenzene 0.73 0.20 9/20/23 0:56 CMR3.6 40.980.092 0.45
1,3,5-Trimethylbenzene 0.17 0.20 9/20/23 0:56 CMRJ0.83 40.980.10 0.51
Vinyl Acetate ND 4.0 9/20/23 0:56 CMRND4140.71 2.5
Vinyl Chloride ND 0.20 9/20/23 0:56 CMRND40.510.091 0.23
m&p-Xylene 0.44 0.40 9/20/23 0:56 CMR1.9 41.70.14 0.61
o-Xylene 0.34 0.20 9/20/23 0:56 CMR1.5 40.870.073 0.32
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)96.7 9/20/23 0:5670-130
Page 5 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 9/14/2023
Work Order: 23I2032Sample Description/Location:
Field Sample #: SSV-2
Sample ID: 23I2032-02
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.2
Sampled: 9/13/2023 13:12
Canister ID: 2873
Flow Controller ID: 4682
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 43 8.0 9/20/23 1:37 CMR100 4191.9 4.5
Benzene 0.22 0.20 9/20/23 1:37 CMR0.69 40.640.062 0.20
Benzyl chloride ND 0.20 9/20/23 1:37 CMRND41.00.11 0.56
Bromodichloromethane ND 0.20 9/20/23 1:37 CMRND41.30.054 0.36
Bromoform ND 0.20 9/20/23 1:37 CMRND42.10.071 0.73
Bromomethane ND 0.20 9/20/23 1:37 CMRND40.780.11 0.41
1,3-Butadiene ND 0.20 9/20/23 1:37 CMRND40.440.17 0.37
2-Butanone (MEK)4.2 8.0 9/20/23 1:37 CMRJ12 4242.2 6.6
Carbon Disulfide 0.47 2.0 9/20/23 1:37 CMRJ1.5 46.20.38 1.2
Carbon Tetrachloride ND 0.20 9/20/23 1:37 CMRND41.30.058 0.36
Chlorobenzene ND 0.20 9/20/23 1:37 CMRND40.920.050 0.23
Chloroethane ND 0.20 9/20/23 1:37 CMRND40.530.13 0.33
Chloroform 0.12 0.20 9/20/23 1:37 CMRJ0.57 40.980.052 0.25
Chloromethane 0.10 0.40 9/20/23 1:37 CMRJ0.21 40.830.082 0.17
Cyclohexane ND 0.20 9/20/23 1:37 CMRND40.690.088 0.30
Dibromochloromethane ND 0.20 9/20/23 1:37 CMRND41.70.054 0.46
1,2-Dibromoethane (EDB)ND 0.20 9/20/23 1:37 CMRND41.50.067 0.51
1,2-Dichlorobenzene ND 0.20 9/20/23 1:37 CMRND41.20.070 0.42
1,3-Dichlorobenzene ND 0.20 9/20/23 1:37 CMRND41.20.074 0.45
1,4-Dichlorobenzene ND 0.20 9/20/23 1:37 CMRND41.20.074 0.44
Dichlorodifluoromethane (Freon 12)0.30 0.20 9/20/23 1:37 CMR1.5 40.990.084 0.42
1,1-Dichloroethane 0.12 0.20 9/20/23 1:37 CMRJ0.49 40.810.064 0.26
1,2-Dichloroethane ND 0.20 9/20/23 1:37 CMRND40.810.075 0.30
1,1-Dichloroethylene ND 0.20 9/20/23 1:37 CMRND40.790.057 0.23
cis-1,2-Dichloroethylene ND 0.20 9/20/23 1:37 CMRND40.790.062 0.24
trans-1,2-Dichloroethylene ND 0.20 9/20/23 1:37 CMRND40.790.065 0.26
1,2-Dichloropropane ND 0.20 9/20/23 1:37 CMRND40.920.055 0.25
cis-1,3-Dichloropropene ND 0.20 9/20/23 1:37 CMRND40.910.090 0.41
trans-1,3-Dichloropropene ND 0.20 9/20/23 1:37 CMRND40.910.10 0.47
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 9/20/23 1:37 CMRND41.40.080 0.56
1,4-Dioxane 8.7 2.0 9/20/23 1:37 CMR31 47.20.98 3.5
Ethanol 110 8.0 9/20/23 1:37 CMR210 4155.3 10.0
Ethyl Acetate ND 2.0 9/20/23 1:37 CMRND47.20.58 2.1
Ethylbenzene 0.060 0.20 9/20/23 1:37 CMRJ0.26 40.870.058 0.25
4-Ethyltoluene ND 0.20 9/20/23 1:37 CMRND40.980.087 0.43
Heptane ND 0.20 9/20/23 1:37 CMRND40.820.13 0.52
Hexachlorobutadiene ND 0.20 9/20/23 1:37 CMRND42.10.12 1.2
Hexane ND 8.0 9/20/23 1:37 CMRND4282.6 9.3
2-Hexanone (MBK)0.28 0.20 9/20/23 1:37 CMR1.2 40.820.087 0.35
Isopropanol 10 8.0 9/20/23 1:37 CMRL-03 25 4202.5 6.2
Methyl tert-Butyl Ether (MTBE)ND 0.20 9/20/23 1:37 CMRND40.720.098 0.35
Methylene Chloride ND 2.0 9/20/23 1:37 CMRND46.90.54 1.9
4-Methyl-2-pentanone (MIBK)0.36 0.20 9/20/23 1:37 CMR1.5 40.820.11 0.43
Naphthalene 0.25 0.20 9/20/23 1:37 CMRZ-01 1.3 41.00.13 0.70
Propene ND 8.0 9/20/23 1:37 CMRND4142.2 3.7
Styrene ND 0.20 9/20/23 1:37 CMRND40.850.11 0.46
1,1,2,2-Tetrachloroethane ND 0.20 9/20/23 1:37 CMRND41.40.050 0.34
Page 6 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 9/14/2023
Work Order: 23I2032Sample Description/Location:
Field Sample #: SSV-2
Sample ID: 23I2032-02
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.2
Sampled: 9/13/2023 13:12
Canister ID: 2873
Flow Controller ID: 4682
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Tetrachloroethylene 160 0.20 9/20/23 1:37 CMR1100 41.40.075 0.51
Tetrahydrofuran ND 2.0 9/20/23 1:37 CMRND45.90.41 1.2
Toluene 0.27 0.20 9/20/23 1:37 CMR1.0 40.750.073 0.27
1,2,4-Trichlorobenzene ND 0.20 9/20/23 1:37 CMRND41.50.11 0.80
1,1,1-Trichloroethane 3.1 0.20 9/20/23 1:37 CMR17 41.10.063 0.34
1,1,2-Trichloroethane ND 0.20 9/20/23 1:37 CMRND41.10.051 0.28
Trichloroethylene 4.0 0.20 9/20/23 1:37 CMR21 41.10.082 0.44
Trichlorofluoromethane (Freon 11)0.18 0.80 9/20/23 1:37 CMRJ1.0 44.50.082 0.46
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.056 0.80 9/20/23 1:37 CMRJ0.43 46.10.044 0.34
1,2,4-Trimethylbenzene 0.41 0.20 9/20/23 1:37 CMR2.0 40.980.092 0.45
1,3,5-Trimethylbenzene 0.11 0.20 9/20/23 1:37 CMRJ0.53 40.980.10 0.51
Vinyl Acetate ND 4.0 9/20/23 1:37 CMRND4140.71 2.5
Vinyl Chloride ND 0.20 9/20/23 1:37 CMRND40.510.091 0.23
m&p-Xylene 0.21 0.40 9/20/23 1:37 CMRJ0.92 41.70.14 0.61
o-Xylene 0.13 0.20 9/20/23 1:37 CMRJ0.57 40.870.073 0.32
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)96.8 9/20/23 1:3770-130
Page 7 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 9/14/2023
Work Order: 23I2032Sample Description/Location:
Field Sample #: SSV-3
Sample ID: 23I2032-03
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -4.9
Sampled: 9/13/2023 13:53
Canister ID: 2768
Flow Controller ID: 4512
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 130 8.0 9/20/23 2:19 CMR310 4191.9 4.5
Benzene 0.93 0.20 9/20/23 2:19 CMR3.0 40.640.062 0.20
Benzyl chloride ND 0.20 9/20/23 2:19 CMRND41.00.11 0.56
Bromodichloromethane ND 0.20 9/20/23 2:19 CMRND41.30.054 0.36
Bromoform ND 0.20 9/20/23 2:19 CMRND42.10.071 0.73
Bromomethane ND 0.20 9/20/23 2:19 CMRND40.780.11 0.41
1,3-Butadiene ND 0.20 9/20/23 2:19 CMRND40.440.17 0.37
2-Butanone (MEK)24 8.0 9/20/23 2:19 CMR72 4242.2 6.6
Carbon Disulfide 12 2.0 9/20/23 2:19 CMR36 46.20.38 1.2
Carbon Tetrachloride ND 0.20 9/20/23 2:19 CMRND41.30.058 0.36
Chlorobenzene ND 0.20 9/20/23 2:19 CMRND40.920.050 0.23
Chloroethane ND 0.20 9/20/23 2:19 CMRND40.530.13 0.33
Chloroform 0.072 0.20 9/20/23 2:19 CMRJ0.35 40.980.052 0.25
Chloromethane 0.17 0.40 9/20/23 2:19 CMRJ0.35 40.830.082 0.17
Cyclohexane 6.5 0.20 9/20/23 2:19 CMR23 40.690.088 0.30
Dibromochloromethane ND 0.20 9/20/23 2:19 CMRND41.70.054 0.46
1,2-Dibromoethane (EDB)ND 0.20 9/20/23 2:19 CMRND41.50.067 0.51
1,2-Dichlorobenzene ND 0.20 9/20/23 2:19 CMRND41.20.070 0.42
1,3-Dichlorobenzene ND 0.20 9/20/23 2:19 CMRND41.20.074 0.45
1,4-Dichlorobenzene ND 0.20 9/20/23 2:19 CMRND41.20.074 0.44
Dichlorodifluoromethane (Freon 12)0.23 0.20 9/20/23 2:19 CMR1.1 40.990.084 0.42
1,1-Dichloroethane 0.14 0.20 9/20/23 2:19 CMRJ0.55 40.810.064 0.26
1,2-Dichloroethane ND 0.20 9/20/23 2:19 CMRND40.810.075 0.30
1,1-Dichloroethylene ND 0.20 9/20/23 2:19 CMRND40.790.057 0.23
cis-1,2-Dichloroethylene 0.37 0.20 9/20/23 2:19 CMR1.5 40.790.062 0.24
trans-1,2-Dichloroethylene ND 0.20 9/20/23 2:19 CMRND40.790.065 0.26
1,2-Dichloropropane ND 0.20 9/20/23 2:19 CMRND40.920.055 0.25
cis-1,3-Dichloropropene ND 0.20 9/20/23 2:19 CMRND40.910.090 0.41
trans-1,3-Dichloropropene ND 0.20 9/20/23 2:19 CMRND40.910.10 0.47
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 9/20/23 2:19 CMRND41.40.080 0.56
1,4-Dioxane ND 2.0 9/20/23 2:19 CMRND47.20.98 3.5
Ethanol 78 8.0 9/20/23 2:19 CMR150 4155.3 10.0
Ethyl Acetate ND 2.0 9/20/23 2:19 CMRND47.20.58 2.1
Ethylbenzene 1.9 0.20 9/20/23 2:19 CMR8.1 40.870.058 0.25
4-Ethyltoluene 7.9 0.20 9/20/23 2:19 CMR39 40.980.087 0.43
Heptane 10 0.20 9/20/23 2:19 CMR41 40.820.13 0.52
Hexachlorobutadiene ND 0.20 9/20/23 2:19 CMRND42.10.12 1.2
Hexane 4.2 8.0 9/20/23 2:19 CMRJ15 4282.6 9.3
2-Hexanone (MBK)ND 0.20 9/20/23 2:19 CMRND40.820.087 0.35
Isopropanol 4.2 8.0 9/20/23 2:19 CMRL-03, J 10 4202.5 6.2
Methyl tert-Butyl Ether (MTBE)ND 0.20 9/20/23 2:19 CMRND40.720.098 0.35
Methylene Chloride ND 2.0 9/20/23 2:19 CMRND46.90.54 1.9
4-Methyl-2-pentanone (MIBK)ND 0.20 9/20/23 2:19 CMRND40.820.11 0.43
Naphthalene 12 0.20 9/20/23 2:19 CMRZ-01 64 41.00.13 0.70
Propene 64 8.0 9/20/23 2:19 CMR110 4142.2 3.7
Styrene ND 0.20 9/20/23 2:19 CMRND40.850.11 0.46
1,1,2,2-Tetrachloroethane ND 0.20 9/20/23 2:19 CMRND41.40.050 0.34
Page 8 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 9/14/2023
Work Order: 23I2032Sample Description/Location:
Field Sample #: SSV-3
Sample ID: 23I2032-03
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -29
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -4.9
Sampled: 9/13/2023 13:53
Canister ID: 2768
Flow Controller ID: 4512
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Tetrachloroethylene 52 0.20 9/20/23 2:19 CMR350 41.40.075 0.51
Tetrahydrofuran ND 2.0 9/20/23 2:19 CMRND45.90.41 1.2
Toluene 2.3 0.20 9/20/23 2:19 CMR8.5 40.750.073 0.27
1,2,4-Trichlorobenzene ND 0.20 9/20/23 2:19 CMRND41.50.11 0.80
1,1,1-Trichloroethane ND 0.20 9/20/23 2:19 CMRND41.10.063 0.34
1,1,2-Trichloroethane ND 0.20 9/20/23 2:19 CMRND41.10.051 0.28
Trichloroethylene 6.0 0.20 9/20/23 2:19 CMR32 41.10.082 0.44
Trichlorofluoromethane (Freon 11)ND 0.80 9/20/23 2:19 CMRND44.50.082 0.46
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)ND 0.80 9/20/23 2:19 CMRND46.10.044 0.34
1,2,4-Trimethylbenzene ND 0.20 9/20/23 2:19 CMRND40.980.092 0.45
1,3,5-Trimethylbenzene ND 0.20 9/20/23 2:19 CMRND40.980.10 0.51
Vinyl Acetate ND 4.0 9/20/23 2:19 CMRND4140.71 2.5
Vinyl Chloride 0.10 0.20 9/20/23 2:19 CMRJ0.26 40.510.091 0.23
m&p-Xylene 3.8 0.40 9/20/23 2:19 CMR16 41.70.14 0.61
o-Xylene 2.4 0.20 9/20/23 2:19 CMR10 40.870.073 0.32
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)96.2 9/20/23 2:1970-130
Page 9 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 9/14/2023
Work Order: 23I2032Sample Description/Location:
Field Sample #: SSV-4
Sample ID: 23I2032-04
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.1
Sampled: 9/13/2023 14:25
Canister ID: 2835
Flow Controller ID: 4513
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 29 8.0 9/20/23 3:00 CMR69 4191.9 4.5
Benzene 0.20 0.20 9/20/23 3:00 CMRJ0.63 40.640.062 0.20
Benzyl chloride ND 0.20 9/20/23 3:00 CMRND41.00.11 0.56
Bromodichloromethane ND 0.20 9/20/23 3:00 CMRND41.30.054 0.36
Bromoform ND 0.20 9/20/23 3:00 CMRND42.10.071 0.73
Bromomethane ND 0.20 9/20/23 3:00 CMRND40.780.11 0.41
1,3-Butadiene ND 0.20 9/20/23 3:00 CMRND40.440.17 0.37
2-Butanone (MEK)4.8 8.0 9/20/23 3:00 CMRJ14 4242.2 6.6
Carbon Disulfide 12 2.0 9/20/23 3:00 CMR36 46.20.38 1.2
Carbon Tetrachloride ND 0.20 9/20/23 3:00 CMRND41.30.058 0.36
Chlorobenzene ND 0.20 9/20/23 3:00 CMRND40.920.050 0.23
Chloroethane ND 0.20 9/20/23 3:00 CMRND40.530.13 0.33
Chloroform 0.11 0.20 9/20/23 3:00 CMRJ0.55 40.980.052 0.25
Chloromethane 0.16 0.40 9/20/23 3:00 CMRJ0.33 40.830.082 0.17
Cyclohexane 0.63 0.20 9/20/23 3:00 CMR2.2 40.690.088 0.30
Dibromochloromethane ND 0.20 9/20/23 3:00 CMRND41.70.054 0.46
1,2-Dibromoethane (EDB)ND 0.20 9/20/23 3:00 CMRND41.50.067 0.51
1,2-Dichlorobenzene ND 0.20 9/20/23 3:00 CMRND41.20.070 0.42
1,3-Dichlorobenzene ND 0.20 9/20/23 3:00 CMRND41.20.074 0.45
1,4-Dichlorobenzene ND 0.20 9/20/23 3:00 CMRND41.20.074 0.44
Dichlorodifluoromethane (Freon 12)0.26 0.20 9/20/23 3:00 CMR1.3 40.990.084 0.42
1,1-Dichloroethane ND 0.20 9/20/23 3:00 CMRND40.810.064 0.26
1,2-Dichloroethane ND 0.20 9/20/23 3:00 CMRND40.810.075 0.30
1,1-Dichloroethylene ND 0.20 9/20/23 3:00 CMRND40.790.057 0.23
cis-1,2-Dichloroethylene ND 0.20 9/20/23 3:00 CMRND40.790.062 0.24
trans-1,2-Dichloroethylene ND 0.20 9/20/23 3:00 CMRND40.790.065 0.26
1,2-Dichloropropane ND 0.20 9/20/23 3:00 CMRND40.920.055 0.25
cis-1,3-Dichloropropene ND 0.20 9/20/23 3:00 CMRND40.910.090 0.41
trans-1,3-Dichloropropene ND 0.20 9/20/23 3:00 CMRND40.910.10 0.47
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 9/20/23 3:00 CMRND41.40.080 0.56
1,4-Dioxane ND 2.0 9/20/23 3:00 CMRND47.20.98 3.5
Ethanol 29 8.0 9/20/23 3:00 CMR55 4155.3 10.0
Ethyl Acetate ND 2.0 9/20/23 3:00 CMRND47.20.58 2.1
Ethylbenzene 0.21 0.20 9/20/23 3:00 CMR0.90 40.870.058 0.25
4-Ethyltoluene 0.44 0.20 9/20/23 3:00 CMR2.1 40.980.087 0.43
Heptane 0.32 0.20 9/20/23 3:00 CMR1.3 40.820.13 0.52
Hexachlorobutadiene ND 0.20 9/20/23 3:00 CMRND42.10.12 1.2
Hexane ND 8.0 9/20/23 3:00 CMRND4282.6 9.3
2-Hexanone (MBK)0.63 0.20 9/20/23 3:00 CMR2.6 40.820.087 0.35
Isopropanol 3.4 8.0 9/20/23 3:00 CMRL-03, J 8.5 4202.5 6.2
Methyl tert-Butyl Ether (MTBE)ND 0.20 9/20/23 3:00 CMRND40.720.098 0.35
Methylene Chloride ND 2.0 9/20/23 3:00 CMRND46.90.54 1.9
4-Methyl-2-pentanone (MIBK)0.77 0.20 9/20/23 3:00 CMR3.1 40.820.11 0.43
Naphthalene ND 0.20 9/20/23 3:00 CMRZ-01 ND 41.00.13 0.70
Propene ND 8.0 9/20/23 3:00 CMRND4142.2 3.7
Styrene 0.31 0.20 9/20/23 3:00 CMR1.3 40.850.11 0.46
1,1,2,2-Tetrachloroethane ND 0.20 9/20/23 3:00 CMRND41.40.050 0.34
Page 10 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 9/14/2023
Work Order: 23I2032Sample Description/Location:
Field Sample #: SSV-4
Sample ID: 23I2032-04
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27.5
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.1
Sampled: 9/13/2023 14:25
Canister ID: 2835
Flow Controller ID: 4513
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Tetrachloroethylene 29 0.20 9/20/23 3:00 CMR190 41.40.075 0.51
Tetrahydrofuran ND 2.0 9/20/23 3:00 CMRND45.90.41 1.2
Toluene 0.75 0.20 9/20/23 3:00 CMR2.8 40.750.073 0.27
1,2,4-Trichlorobenzene ND 0.20 9/20/23 3:00 CMRND41.50.11 0.80
1,1,1-Trichloroethane ND 0.20 9/20/23 3:00 CMRND41.10.063 0.34
1,1,2-Trichloroethane ND 0.20 9/20/23 3:00 CMRND41.10.051 0.28
Trichloroethylene 0.46 0.20 9/20/23 3:00 CMR2.5 41.10.082 0.44
Trichlorofluoromethane (Freon 11)0.12 0.80 9/20/23 3:00 CMRJ0.65 44.50.082 0.46
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.048 0.80 9/20/23 3:00 CMRJ0.37 46.10.044 0.34
1,2,4-Trimethylbenzene 2.4 0.20 9/20/23 3:00 CMR12 40.980.092 0.45
1,3,5-Trimethylbenzene 0.70 0.20 9/20/23 3:00 CMR3.4 40.980.10 0.51
Vinyl Acetate ND 4.0 9/20/23 3:00 CMRND4140.71 2.5
Vinyl Chloride ND 0.20 9/20/23 3:00 CMRND40.510.091 0.23
m&p-Xylene 0.72 0.40 9/20/23 3:00 CMR3.1 41.70.14 0.61
o-Xylene 0.49 0.20 9/20/23 3:00 CMR2.1 40.870.073 0.32
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)101 9/20/23 3:0070-130
Page 11 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 9/14/2023
Work Order: 23I2032Sample Description/Location:
Field Sample #: SSV-DUP
Sample ID: 23I2032-05
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.2
Sampled: 9/13/2023 00:00
Canister ID: 2908
Flow Controller ID: -
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 38 8.0 9/20/23 3:42 CMR90 4191.9 4.5
Benzene 0.20 0.20 9/20/23 3:42 CMRJ0.63 40.640.062 0.20
Benzyl chloride ND 0.20 9/20/23 3:42 CMRND41.00.11 0.56
Bromodichloromethane ND 0.20 9/20/23 3:42 CMRND41.30.054 0.36
Bromoform ND 0.20 9/20/23 3:42 CMRND42.10.071 0.73
Bromomethane ND 0.20 9/20/23 3:42 CMRND40.780.11 0.41
1,3-Butadiene ND 0.20 9/20/23 3:42 CMRND40.440.17 0.37
2-Butanone (MEK)3.9 8.0 9/20/23 3:42 CMRJ11 4242.2 6.6
Carbon Disulfide ND 2.0 9/20/23 3:42 CMRND46.20.38 1.2
Carbon Tetrachloride ND 0.20 9/20/23 3:42 CMRND41.30.058 0.36
Chlorobenzene ND 0.20 9/20/23 3:42 CMRND40.920.050 0.23
Chloroethane ND 0.20 9/20/23 3:42 CMRND40.530.13 0.33
Chloroform 0.12 0.20 9/20/23 3:42 CMRJ0.61 40.980.052 0.25
Chloromethane 0.11 0.40 9/20/23 3:42 CMRJ0.22 40.830.082 0.17
Cyclohexane 0.10 0.20 9/20/23 3:42 CMRJ0.34 40.690.088 0.30
Dibromochloromethane ND 0.20 9/20/23 3:42 CMRND41.70.054 0.46
1,2-Dibromoethane (EDB)ND 0.20 9/20/23 3:42 CMRND41.50.067 0.51
1,2-Dichlorobenzene ND 0.20 9/20/23 3:42 CMRND41.20.070 0.42
1,3-Dichlorobenzene ND 0.20 9/20/23 3:42 CMRND41.20.074 0.45
1,4-Dichlorobenzene ND 0.20 9/20/23 3:42 CMRND41.20.074 0.44
Dichlorodifluoromethane (Freon 12)0.30 0.20 9/20/23 3:42 CMR1.5 40.990.084 0.42
1,1-Dichloroethane 0.13 0.20 9/20/23 3:42 CMRJ0.52 40.810.064 0.26
1,2-Dichloroethane ND 0.20 9/20/23 3:42 CMRND40.810.075 0.30
1,1-Dichloroethylene ND 0.20 9/20/23 3:42 CMRND40.790.057 0.23
cis-1,2-Dichloroethylene ND 0.20 9/20/23 3:42 CMRND40.790.062 0.24
trans-1,2-Dichloroethylene ND 0.20 9/20/23 3:42 CMRND40.790.065 0.26
1,2-Dichloropropane ND 0.20 9/20/23 3:42 CMRND40.920.055 0.25
cis-1,3-Dichloropropene ND 0.20 9/20/23 3:42 CMRND40.910.090 0.41
trans-1,3-Dichloropropene ND 0.20 9/20/23 3:42 CMRND40.910.10 0.47
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)ND 0.20 9/20/23 3:42 CMRND41.40.080 0.56
1,4-Dioxane 9.6 2.0 9/20/23 3:42 CMR34 47.20.98 3.5
Ethanol 100 8.0 9/20/23 3:42 CMR200 4155.3 10.0
Ethyl Acetate ND 2.0 9/20/23 3:42 CMRND47.20.58 2.1
Ethylbenzene 0.080 0.20 9/20/23 3:42 CMRJ0.35 40.870.058 0.25
4-Ethyltoluene 0.11 0.20 9/20/23 3:42 CMRJ0.53 40.980.087 0.43
Heptane ND 0.20 9/20/23 3:42 CMRND40.820.13 0.52
Hexachlorobutadiene ND 0.20 9/20/23 3:42 CMRND42.10.12 1.2
Hexane ND 8.0 9/20/23 3:42 CMRND4282.6 9.3
2-Hexanone (MBK)0.24 0.20 9/20/23 3:42 CMR0.98 40.820.087 0.35
Isopropanol 9.6 8.0 9/20/23 3:42 CMRL-03 24 4202.5 6.2
Methyl tert-Butyl Ether (MTBE)0.13 0.20 9/20/23 3:42 CMRJ0.48 40.720.098 0.35
Methylene Chloride ND 2.0 9/20/23 3:42 CMRND46.90.54 1.9
4-Methyl-2-pentanone (MIBK)0.37 0.20 9/20/23 3:42 CMR1.5 40.820.11 0.43
Naphthalene 0.33 0.20 9/20/23 3:42 CMRZ-01 1.7 41.00.13 0.70
Propene ND 8.0 9/20/23 3:42 CMRND4142.2 3.7
Styrene ND 0.20 9/20/23 3:42 CMRND40.850.11 0.46
1,1,2,2-Tetrachloroethane ND 0.20 9/20/23 3:42 CMRND41.40.050 0.34
Page 12 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 9/14/2023
Work Order: 23I2032Sample Description/Location:
Field Sample #: SSV-DUP
Sample ID: 23I2032-05
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -27
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.2
Sampled: 9/13/2023 00:00
Canister ID: 2908
Flow Controller ID: -
Sub Description/Location:
Canister Size: 1 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 10 min
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Tetrachloroethylene 150 0.20 9/20/23 3:42 CMR1000 41.40.075 0.51
Tetrahydrofuran ND 2.0 9/20/23 3:42 CMRND45.90.41 1.2
Toluene 0.29 0.20 9/20/23 3:42 CMR1.1 40.750.073 0.27
1,2,4-Trichlorobenzene ND 0.20 9/20/23 3:42 CMRND41.50.11 0.80
1,1,1-Trichloroethane 3.2 0.20 9/20/23 3:42 CMR18 41.10.063 0.34
1,1,2-Trichloroethane ND 0.20 9/20/23 3:42 CMRND41.10.051 0.28
Trichloroethylene 4.2 0.20 9/20/23 3:42 CMR22 41.10.082 0.44
Trichlorofluoromethane (Freon 11)0.17 0.80 9/20/23 3:42 CMRJ0.97 44.50.082 0.46
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.052 0.80 9/20/23 3:42 CMRJ0.40 46.10.044 0.34
1,2,4-Trimethylbenzene 0.57 0.20 9/20/23 3:42 CMR2.8 40.980.092 0.45
1,3,5-Trimethylbenzene 0.16 0.20 9/20/23 3:42 CMRJ0.79 40.980.10 0.51
Vinyl Acetate ND 4.0 9/20/23 3:42 CMRND4140.71 2.5
Vinyl Chloride ND 0.20 9/20/23 3:42 CMRND40.510.091 0.23
m&p-Xylene 0.24 0.40 9/20/23 3:42 CMRJ1.0 41.70.14 0.61
o-Xylene 0.16 0.20 9/20/23 3:42 CMRJ0.68 40.870.073 0.32
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)99.7 9/20/23 3:4270-130
Page 13 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Sample Extraction Data
Prep Method: TO-15 Prep-EPA TO-15
Lab Number [Field ID]Batch Date
Pressure
Dilution
Pre
Dilution
Pre-Dil
Initial
mL
Pre-Dil
Final
mL
Default
Injection
mL
Actual
Injection
mL
23I2032-01 [SSV-1]B352509 1.5 1 N/A 1000 400 150 09/19/23
23I2032-02 [SSV-2]B352509 1.5 1 N/A 1000 400 150 09/19/23
23I2032-03 [SSV-3]B352509 1.5 1 N/A 1000 400 150 09/19/23
23I2032-04 [SSV-4]B352509 1.5 1 N/A 1000 400 150 09/19/23
23I2032-05 [SSV-DUP]B352509 1.5 1 N/A 1000 400 150 09/19/23
Page 14 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ug/m3 Spike Level
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Flag/Qual Analyte
Air Toxics by EPA Compendium Methods - Quality Control
QUALITY CONTROL
RL
ppbv
Results RL Results ppbv
Batch B352509 - TO-15 Prep
Blank (B352509-BLK1)Prepared & Analyzed: 09/19/23
1.4NDAcetone
0.035NDBenzene
0.035NDBenzyl chloride
0.035NDBromodichloromethane
0.035NDBromoform
0.035NDBromomethane
0.035ND1,3-Butadiene
1.4ND2-Butanone (MEK)
0.35NDCarbon Disulfide
0.035NDCarbon Tetrachloride
0.035NDChlorobenzene
0.035NDChloroethane
0.035NDChloroform
0.070NDChloromethane
0.035NDCyclohexane
0.035NDDibromochloromethane
0.035ND1,2-Dibromoethane (EDB)
0.035ND1,2-Dichlorobenzene
0.035ND1,3-Dichlorobenzene
0.035ND1,4-Dichlorobenzene
0.035NDDichlorodifluoromethane (Freon 12)
0.035ND1,1-Dichloroethane
0.035ND1,2-Dichloroethane
0.035ND1,1-Dichloroethylene
0.035NDcis-1,2-Dichloroethylene
0.035NDtrans-1,2-Dichloroethylene
0.035ND1,2-Dichloropropane
0.035NDcis-1,3-Dichloropropene
0.035NDtrans-1,3-Dichloropropene
0.035ND1,2-Dichloro-1,1,2,2-tetrafluoroethane
(Freon 114)
0.35ND1,4-Dioxane
1.4NDEthanol
0.35NDEthyl Acetate
0.035NDEthylbenzene
0.035ND4-Ethyltoluene
0.035NDHeptane
0.035NDHexachlorobutadiene
1.4NDHexane
0.035ND2-Hexanone (MBK)
1.4 L-03NDIsopropanol
0.035NDMethyl tert-Butyl Ether (MTBE)
0.35NDMethylene Chloride
0.035ND4-Methyl-2-pentanone (MIBK)
0.035 Z-01NDNaphthalene
1.4NDPropene
0.035NDStyrene
Page 15 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ug/m3 Spike Level
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Flag/Qual Analyte
Air Toxics by EPA Compendium Methods - Quality Control
QUALITY CONTROL
RL
ppbv
Results RL Results ppbv
Batch B352509 - TO-15 Prep
Blank (B352509-BLK1)Prepared & Analyzed: 09/19/23
0.035ND1,1,2,2-Tetrachloroethane
0.035NDTetrachloroethylene
0.35NDTetrahydrofuran
0.035NDToluene
0.035ND1,2,4-Trichlorobenzene
0.035ND1,1,1-Trichloroethane
0.035ND1,1,2-Trichloroethane
0.035NDTrichloroethylene
0.14NDTrichlorofluoromethane (Freon 11)
0.14ND1,1,2-Trichloro-1,2,2-trifluoroethane (Freon
113)
0.035ND1,2,4-Trimethylbenzene
0.035ND1,3,5-Trimethylbenzene
0.70NDVinyl Acetate
0.035NDVinyl Chloride
0.070NDm&p-Xylene
0.035NDo-Xylene
8.00 70-130Surrogate: 4-Bromofluorobenzene (1)95.77.65
LCS (B352509-BS1)Prepared & Analyzed: 09/19/23
5.00 70-13084.84.24Acetone
5.00 70-13087.84.39Benzene
5.00 70-13083.14.15Benzyl chloride
5.00 70-13085.94.30Bromodichloromethane
5.00 70-13087.74.38Bromoform
5.00 70-13090.14.50Bromomethane
5.00 70-13081.44.071,3-Butadiene
5.00 70-13086.64.332-Butanone (MEK)
5.00 70-13087.64.38Carbon Disulfide
5.00 70-13086.64.33Carbon Tetrachloride
5.00 70-13088.44.42Chlorobenzene
5.00 70-13088.74.43Chloroethane
5.00 70-13084.44.22Chloroform
5.00 70-13084.64.23Chloromethane
5.00 70-13085.14.26Cyclohexane
5.00 70-13087.84.39Dibromochloromethane
5.00 70-13083.04.151,2-Dibromoethane (EDB)
5.00 70-13078.93.951,2-Dichlorobenzene
5.00 70-13082.64.131,3-Dichlorobenzene
5.00 70-13082.64.131,4-Dichlorobenzene
5.00 70-13085.94.30Dichlorodifluoromethane (Freon 12)
5.00 70-13083.24.161,1-Dichloroethane
5.00 70-13081.94.091,2-Dichloroethane
5.00 70-13084.24.211,1-Dichloroethylene
5.00 70-13080.64.03cis-1,2-Dichloroethylene
5.00 70-13082.04.10trans-1,2-Dichloroethylene
5.00 70-13086.14.301,2-Dichloropropane
Page 16 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ug/m3 Spike Level
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Flag/Qual Analyte
Air Toxics by EPA Compendium Methods - Quality Control
QUALITY CONTROL
RL
ppbv
Results RL Results ppbv
Batch B352509 - TO-15 Prep
LCS (B352509-BS1)Prepared & Analyzed: 09/19/23
5.00 70-13086.04.30cis-1,3-Dichloropropene
5.00 70-13087.74.38trans-1,3-Dichloropropene
5.00 70-13083.84.191,2-Dichloro-1,1,2,2-tetrafluoroethane
(Freon 114)
5.00 70-13078.43.921,4-Dioxane
5.00 70-13082.34.12Ethanol
5.00 70-13074.43.72Ethyl Acetate
5.00 70-13088.84.44Ethylbenzene
5.00 70-13086.74.344-Ethyltoluene
5.00 70-13090.04.50Heptane
4.25 V-3670-13075.63.21Hexachlorobutadiene
5.00 70-13083.54.17Hexane
5.00 70-13089.74.482-Hexanone (MBK)
5.00 L-0370-13069.13.45Isopropanol *
5.00 70-13079.93.99Methyl tert-Butyl Ether (MTBE)
5.00 70-13086.14.30Methylene Chloride
5.00 70-13090.64.534-Methyl-2-pentanone (MIBK)
3.68 Z-0170-13093.33.43Naphthalene
5.00 70-13085.74.29Propene
5.00 70-13089.24.46Styrene
5.00 70-13084.64.231,1,2,2-Tetrachloroethane
5.00 70-13086.44.32Tetrachloroethylene
5.00 70-13086.24.31Tetrahydrofuran
5.00 70-13090.04.50Toluene
3.90 70-13089.83.501,2,4-Trichlorobenzene
5.00 70-13084.64.231,1,1-Trichloroethane
5.00 70-13090.24.511,1,2-Trichloroethane
5.00 70-13083.84.19Trichloroethylene
5.00 70-13090.94.54Trichlorofluoromethane (Freon 11)
5.00 70-13086.14.301,1,2-Trichloro-1,2,2-trifluoroethane (Freon
113)
5.00 70-13083.04.151,2,4-Trimethylbenzene
5.00 70-13085.84.291,3,5-Trimethylbenzene
5.00 70-13095.74.78Vinyl Acetate
5.00 70-13085.54.28Vinyl Chloride
10.0 70-13090.29.02m&p-Xylene
5.00 70-13088.84.44o-Xylene
8.00 70-130Surrogate: 4-Bromofluorobenzene (1)1028.12
Page 17 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Note: Blank Subtraction is not performed unless otherwise noted
*QC result is outside of established limits.
Wide recovery limits established for difficult compound.
Wide RPD limits established for difficult compound.
#Data exceeded client recommended or regulatory level
RL Reporting Limit
MDL Method Detection Limit
RPD Relative Percent Difference
LCS Laboratory Control Sample
Laboratory Control SampleLCS Dup Duplicate Laboratory Control Sample
MS Matrix Spike Sample
MS Dup Duplicate Matrix Spike Sample
REC Recovery
QC Quality Control
ppbv Parts per billion volume
EPA United States Environmental Protection Agency
Percent Recovery% REC
ND Not Detected
Percent recoveries and relative percent differences (RPDs) are determined by the software using values in the
calculation which have not been rounded.
Not ApplicableN/A
DL Detection Limit
Not CalculatedNC
LFB/LCS Lab Fortified Blank/Lab Control Sample
ORP Oxidation-Reduction Potential
Not dry weight correctedwet
Percent weight% wt
KilogramKg
Gramg
Milligrammg
Microgramg
Nanogramng
LiterL
MillilitermL
Microliter L
Cubic Meterm3
Extractable Petroleum HydrocarbonsEPH
Volatile Petroleum HydrocarbonsVPH
Air Petroleum HydrocarbonsAPH
Flame Ionization DetectorFID
Photo Ionization DetectorPID
FLAG/QUALIFIER SUMMARY
Reported result is estimated. Value reported over verified calibration range.E
Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated
concentration (CLP J-Flag).
J
Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this
compound is likely to be biased on the low side.
L-03
Initial calibration verification (ICV) did not meet method specifications and was biased on the high side. Data
validation is not affected since sample result was "not detected" for this compound.
V-36
Calibrations RSD for this compound is >30% but <40%.Z-01
Page 18 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYST
Thomas P. HniteckiTPH
Report Queue StationSTATION
Rebecca FaustRLF
Catherine M. RouleauCMR
Page 19 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
INTERNAL STANDARD AREA AND RT SUMMARY
EPA TO-15
RTResponseInternal Standard Area %RT DiffResponse
Reference
RT
Reference Area %
Limits
RT Diff
Limit Q
Initial Cal Check (S093200-ICV1 )Lab File ID: G23A252018.D Analyzed: 09/11/23 10:53
Bromochloromethane (1)1146432 8.03 925331 8.036 60 - 140124 -0.0060 +/-0.50
1,4-Difluorobenzene (1)2361487 9.798 2083802 9.804 60 - 140113 -0.0060 +/-0.50
Chlorobenzene-d5 (1)2073251 14.157 1901010 14.157 60 - 140109 0.0000 +/-0.50
INTERNAL STANDARD AREA AND RT SUMMARY
EPA TO-15
RTResponseInternal Standard Area %RT DiffResponse
Reference
RT
Reference Area %
Limits
RT Diff
Limit Q
Calibration Check (S093633-CCV1 )Lab File ID: G23A262004.D Analyzed: 09/19/23 12:37
Bromochloromethane (1)892314 8.036 925331 8.036 60 - 14096 0.0000 +/-0.50
1,4-Difluorobenzene (1)1880386 9.804 2083802 9.804 60 - 14090 0.0000 +/-0.50
Chlorobenzene-d5 (1)1641263 14.163 1901010 14.157 60 - 14086 0.0060 +/-0.50
LCS (B352509-BS1 )Lab File ID: G23A262005.D Analyzed: 09/19/23 13:17
Bromochloromethane (1)906334 8.036 892314 8.036 60 - 140102 0.0000 +/-0.50
1,4-Difluorobenzene (1)1885182 9.804 1880386 9.804 60 - 140100 0.0000 +/-0.50
Chlorobenzene-d5 (1)1646732 14.163 1641263 14.163 60 - 140100 0.0000 +/-0.50
Blank (B352509-BLK1 )Lab File ID: G23A262010.D Analyzed: 09/19/23 16:46
Bromochloromethane (1)871786 8.036 892314 8.036 60 - 14098 0.0000 +/-0.50
1,4-Difluorobenzene (1)1813966 9.804 1880386 9.804 60 - 14096 0.0000 +/-0.50
Chlorobenzene-d5 (1)1553890 14.157 1641263 14.163 60 - 14095 -0.0060 +/-0.50
SSV-1 (23I2032-01 )Lab File ID: G23A262022.D Analyzed: 09/20/23 00:56
Bromochloromethane (1)963282 8.036 892314 8.036 60 - 140108 0.0000 +/-0.50
1,4-Difluorobenzene (1)2051472 9.804 1880386 9.804 60 - 140109 0.0000 +/-0.50
Chlorobenzene-d5 (1)1778913 14.157 1641263 14.163 60 - 140108 -0.0060 +/-0.50
SSV-2 (23I2032-02 )Lab File ID: G23A262023.D Analyzed: 09/20/23 01:37
Bromochloromethane (1)952826 8.036 892314 8.036 60 - 140107 0.0000 +/-0.50
1,4-Difluorobenzene (1)2044410 9.804 1880386 9.804 60 - 140109 0.0000 +/-0.50
Chlorobenzene-d5 (1)1777966 14.157 1641263 14.163 60 - 140108 -0.0060 +/-0.50
SSV-3 (23I2032-03 )Lab File ID: G23A262024.D Analyzed: 09/20/23 02:19
Bromochloromethane (1)986369 8.036 892314 8.036 60 - 140111 0.0000 +/-0.50
1,4-Difluorobenzene (1)2096815 9.804 1880386 9.804 60 - 140112 0.0000 +/-0.50
Chlorobenzene-d5 (1)1865516 14.157 1641263 14.163 60 - 140114 -0.0060 +/-0.50
SSV-4 (23I2032-04 )Lab File ID: G23A262025.D Analyzed: 09/20/23 03:00
Bromochloromethane (1)1047415 8.036 892314 8.036 60 - 140117 0.0000 +/-0.50
1,4-Difluorobenzene (1)2376028 9.804 1880386 9.804 60 - 140126 0.0000 +/-0.50
Chlorobenzene-d5 (1)2088918 14.163 1641263 14.163 60 - 140127 0.0000 +/-0.50
Page 20 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
INTERNAL STANDARD AREA AND RT SUMMARY
EPA TO-15
RTResponseInternal Standard Area %RT DiffResponse
Reference
RT
Reference Area %
Limits
RT Diff
Limit Q
SSV-DUP (23I2032-05 )Lab File ID: G23A262026.D Analyzed: 09/20/23 03:42
Bromochloromethane (1)1079744 8.036 892314 8.036 60 - 140121 0.0000 +/-0.50
1,4-Difluorobenzene (1)2436115 9.804 1880386 9.804 60 - 140130 0.0000 +/-0.50
Chlorobenzene-d5 (1)2146545 14.157 1641263 14.163 60 - 140131 -0.0060 +/-0.50
Page 21 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S093633-CCV1
COMPOUND TYPE CCV MIN (#)CCV LIMIT (#)CCV ICAL
CONC. (ppbv)% DIFF / DRIFTRESPONSE FACTOR
STD
1.081972A -11.5 304.42 1.222545.00Acetone
0.7847206A -12.4 304.38 0.89598435.00Benzene
0.6835341A 4.4 305.22 0.65489955.00Benzyl chloride
0.55233A -12.4 304.38 0.63085865.00Bromodichloromethane
0.4646314A 2.1 305.11 0.45495445.00Bromoform
0.6061812A -10.4 304.48 0.6768265.00Bromomethane
0.5713092A -15.2 304.24 0.67340115.001,3-Butadiene
1.269982A -12.7 304.36 1.4548935.002-Butanone (MEK)
1.655078A -14.7 304.27 1.939335.00Carbon Disulfide
0.4512971A -10.7 304.47 0.50519665.00Carbon Tetrachloride
0.6929892A -8.1 304.59 0.75446945.00Chlorobenzene
0.3535778A -13.6 304.32 0.40945215.00Chloroethane
1.146807A -15.9 304.21 1.3630125.00Chloroform
0.7287013A -14.0 304.30 0.84778755.00Chloromethane
0.3012556A -15.2 304.24 0.35540015.00Cyclohexane
0.5281591A -5.7 304.72 0.56007865.00Dibromochloromethane
0.4860033A -13.2 304.34 0.55997825.001,2-Dibromoethane (EDB)
0.4707516A -3.1 304.84 0.48582445.001,2-Dichlorobenzene
0.5552202A -0.4 304.98 0.55747075.001,3-Dichlorobenzene
0.531109A -0.9 304.95 0.53616025.001,4-Dichlorobenzene
1.224116A -21.9 303.90 1.5672185.00Dichlorodifluoromethane (Freon 12)
1.086149A -17.3 304.14 1.3131095.001,1-Dichloroethane
0.7098219A -17.7 304.12 0.86240895.001,2-Dichloroethane
0.9910843A -17.1 304.15 1.1949915.001,1-Dichloroethylene
0.7620439A -18.3 304.09 0.93232315.00cis-1,2-Dichloroethylene
0.8176584A -18.0 304.10 0.99657265.00trans-1,2-Dichloroethylene
0.3130591A -15.3 304.23 0.36974755.001,2-Dichloropropane
0.4258513A -10.4 304.48 0.47535265.00cis-1,3-Dichloropropene
0.365017A -10.3 304.48 0.40699815.00trans-1,3-Dichloropropene
1.78908A -10.5 304.48 1.9980855.001,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
0.1150998A -16.7 304.16 0.13815895.001,4-Dioxane
0.1795745A -12.4 304.38 0.20502455.00Ethanol
0.2185114A -13.7 304.32 0.25312745.00Ethyl Acetate
1.199753A -7.0 304.65 1.2904335.00Ethylbenzene
1.140678A -3.5 304.82 1.1825065.004-Ethyltoluene
0.2619522A -10.1 304.50 0.29124945.00Heptane
0.2213495A -7.0 304.65 0.23791055.00Hexachlorobutadiene
0.7293666A -17.5 304.12 0.8845335.00Hexane
Page 22 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S093633-CCV1
COMPOUND TYPE CCV MIN (#)CCV LIMIT (#)CCV ICAL
CONC. (ppbv)% DIFF / DRIFTRESPONSE FACTOR
STD
0.6658687A -3.4 304.83 0.68924335.002-Hexanone (MBK)
1.213078A -11.7 304.41 1.3743245.00Isopropanol
1.453191A -18.7 304.07 1.7866655.00Methyl tert-Butyl Ether (MTBE)
0.7842334A -13.9 304.30 0.91095015.00Methylene Chloride
0.7014253A -6.9 304.66 0.75302915.004-Methyl-2-pentanone (MIBK)
0.4468208A 14.6 305.73 0.38981945.00Naphthalene
0.6390109A -13.2 304.34 0.73645885.00Propene
0.650579A -4.3 304.79 0.67955875.00Styrene
0.7114969A -3.4 304.83 0.73624095.001,1,2,2-Tetrachloroethane
0.3795019A -11.4 304.43 0.42832525.00Tetrachloroethylene
0.2185204A -16.8 304.16 0.26275365.00Tetrahydrofuran
0.9592496A -8.8 304.56 1.0521685.00Toluene
0.1965374A 2.8 305.14 0.19111425.001,2,4-Trichlorobenzene
0.4722605A -12.9 304.35 0.54244595.001,1,1-Trichloroethane
0.324977A -9.9 304.50 0.3606485.001,1,2-Trichloroethane
0.3098121A -15.3 304.23 0.36585615.00Trichloroethylene
1.452787A -9.2 304.54 1.6003725.00Trichlorofluoromethane (Freon 11)
1.123248A -14.4 304.28 1.3124395.001,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.8549835A -5.1 304.74 0.90104265.001,2,4-Trimethylbenzene
0.91976A -3.4 304.83 0.95210125.001,3,5-Trimethylbenzene
1.430162A -16.0 304.20 1.7015925.00Vinyl Acetate
0.7443909A -16.2 304.19 0.8878585.00Vinyl Chloride
0.9320295A -4.4 309.56 0.975409810.0m&p-Xylene
0.9370247A -4.7 304.77 0.98303725.00o-Xylene
* Values outside of QC limits
# Column to be used to flag Response Factor and %Diff/Drift values with an asterisk
Page 23 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
EPA TO-15 in Air
AIHA,NY,ME,NHAcetone
AIHA,FL,NJ,NY,ME,NH,VABenzene
AIHA,FL,NJ,NY,ME,NH,VABenzyl chloride
AIHA,NJ,NY,ME,NH,VABromodichloromethane
AIHA,NJ,NY,ME,NH,VABromoform
AIHA,FL,NJ,NY,ME,NHBromomethane
AIHA,NJ,NY,ME,NH,VA1,3-Butadiene
AIHA,FL,NJ,NY,ME,NH,VA2-Butanone (MEK)
AIHA,NJ,NY,ME,NH,VACarbon Disulfide
AIHA,FL,NJ,NY,ME,NH,VACarbon Tetrachloride
AIHA,FL,NJ,NY,ME,NH,VAChlorobenzene
AIHA,FL,NJ,NY,ME,NH,VAChloroethane
AIHA,FL,NJ,NY,ME,NH,VAChloroform
AIHA,FL,NJ,NY,ME,NH,VAChloromethane
AIHA,NJ,NY,ME,NH,VACyclohexane
AIHA,NY,ME,NHDibromochloromethane
AIHA,NJ,NY,ME,NH1,2-Dibromoethane (EDB)
AIHA,FL,NJ,NY,ME,NH,VA1,2-Dichlorobenzene
AIHA,NJ,NY,ME,NH1,3-Dichlorobenzene
AIHA,FL,NJ,NY,ME,NH,VA1,4-Dichlorobenzene
AIHA,NY,ME,NHDichlorodifluoromethane (Freon 12)
AIHA,FL,NJ,NY,ME,NH,VA1,1-Dichloroethane
AIHA,FL,NJ,NY,ME,NH,VA1,2-Dichloroethane
AIHA,FL,NJ,NY,ME,NH,VA1,1-Dichloroethylene
AIHA,FL,NY,ME,NH,VAcis-1,2-Dichloroethylene
AIHA,NJ,NY,ME,NH,VAtrans-1,2-Dichloroethylene
AIHA,FL,NJ,NY,ME,NH,VA1,2-Dichloropropane
AIHA,FL,NJ,NY,ME,NH,VAcis-1,3-Dichloropropene
AIHA,NY,ME,NHtrans-1,3-Dichloropropene
AIHA,NJ,NY,ME,NH,VA1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
AIHA,NJ,NY,ME,NH,VA1,4-Dioxane
AIHAEthanol
AIHAEthyl Acetate
AIHA,FL,NJ,NY,ME,NH,VAEthylbenzene
AIHA4-Ethyltoluene
AIHA,NJ,NY,ME,NH,VAHeptane
AIHA,NJ,NY,ME,NH,VAHexachlorobutadiene
AIHA,FL,NJ,NY,ME,NH,VAHexane
AIHA2-Hexanone (MBK)
AIHA,NY,ME,NHIsopropanol
AIHA,FL,NJ,NY,ME,NH,VAMethyl tert-Butyl Ether (MTBE)
AIHA,FL,NJ,NY,ME,NH,VAMethylene Chloride
AIHA,FL,NJ,NY,ME,NH4-Methyl-2-pentanone (MIBK)
NY,ME,NHNaphthalene
AIHAPropene
AIHA,FL,NJ,NY,ME,NH,VAStyrene
AIHA,FL,NJ,NY,ME,NH,VA1,1,2,2-Tetrachloroethane
Page 24 of 28
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
EPA TO-15 in Air
AIHA,FL,NJ,NY,ME,NH,VATetrachloroethylene
AIHATetrahydrofuran
AIHA,FL,NJ,NY,ME,NH,VAToluene
AIHA,NJ,NY,ME,NH,VA1,2,4-Trichlorobenzene
AIHA,FL,NJ,NY,ME,NH,VA1,1,1-Trichloroethane
AIHA,FL,NJ,NY,ME,NH,VA1,1,2-Trichloroethane
AIHA,FL,NJ,NY,ME,NH,VATrichloroethylene
AIHA,NY,ME,NHTrichlorofluoromethane (Freon 11)
AIHA,NJ,NY,ME,NH,VA1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
AIHA,NJ,NY,ME,NH1,2,4-Trimethylbenzene
AIHA,NJ,NY,ME,NH1,3,5-Trimethylbenzene
AIHA,FL,NJ,NY,ME,NH,VAVinyl Acetate
AIHA,FL,NJ,NY,ME,NH,VAVinyl Chloride
AIHA,FL,NJ,NY,ME,NH,VAm&p-Xylene
AIHA,FL,NJ,NY,ME,NH,VAo-Xylene
Con-Test, a Pace Environmental Laboratory, operates under the following certifications and accreditations:
Code Description Number Expires
100033AIHA-LAP, LLC - ISO 17025:2017AIHA 03/1/2024
10899 NELAPNew York State Department of HealthNY 04/1/2024
2516 NELAPNew Hampshire Environmental LabNH 02/5/2024
MA007 NELAPNew Jersey DEPNJ 06/30/2024
E871027 NELAPFlorida Department of HealthFL 06/30/2024
MA00100State of MaineME 06/9/2025
460217Commonwealth of VirginiaVA 12/14/2023
Page 25 of 28
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Page 28 of 28

Appendix C DEQ Risk Calculator Output
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
Prepared By:Hart & Hickman, PC
2923 S. Tryon St, Suite 100, Charlotte, NC 28203
Service Garage Building (Worst-Case Sub-slab soil vapor)
North Carolina Department of Environmental Quality
Risk Calculator
Moss Trucking Company
North Tryon Street and Atando Avanue
Division of Waste Management - Brownfields Program
Brownfields Project No. 26008-22-060
July 2023
May 2023 EPA RSL Table
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: July 2023
Basis: May 2023 EPA RSL Table
Site ID: Brownfields Project No. 26008-22-060
Exposure Unit ID: Service Garage Building (Worst-Case Sub-slab soil vapor)
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: July 2023
Basis: May 2023 EPA RSL Table
Site ID: Brownfields Project No. 26008-22-060
Exposure Unit ID: Service Garage Building (Worst-Case Sub-slab soil vapor)
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
North Carolina DEQ Risk Calculator
Exposure Factors and Target Risks
Version Date: July 2023
Basis: May 2023 EPA RSL TableSite ID: Brownfields Project No. 26008-22-060
Exposure Parameter Site Specific Value Justification
Target Cancer Risk (individual)1.0E-06
Target Cancer Risk (cumulative)1.0E-04
Target Hazard Index (individual)2.0E-01
Target Hazard Index (cumulative)1.0E+00
Lifetime (LT) (years)70
Body Weight (BW) (kg)15
Exposure Duration (ED) (yr)6
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr/d)24
Skin Surface Area - Soil Exposure (SAs) (cm2)2373
Soil Adherence Factor (AF) (mg/cm2)0.2
Soil Ingestion Rate (IRS) (mg/day)200
Skin Surface Area - Water Exposure (SAw) (cm2)6365
Water Ingestion Rate (IRW) (L/d)0.78
Water Exposure Time (ETevent) (hr/event)0.54
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)20
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr/d)24
Skin Surface Area - Soil Exposure (SAs) (cm2)6032
Soil Adherence Factor (AF) (mg/cm2)0.07
Soil Ingestion Rate (IRS) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)2.5
Water Exposure Time (ETevent) (hr/event)0.71
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)25
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr/d)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.12
Soil Ingestion Rate (IR) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)0.83
Water Exposure Time (ETevent) (hr/event)0.67
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Working Weeks (EW) (wk/yr)50
Exposure Duration (ED) (yr)1
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr/d)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.3
Soil Ingestion Rate (IR) (mg/day)330
1
70
80
330
1
250
8
3527
0.3
50
100
19652
2.5
0.71
1
20
350
24
6032
0.07
0.54
1
70
80
2373
0.2
200
6365
0.78
Input Form 1B
Exposure Unit ID: Service Garage Building (Worst-Case Sub-slab soil vapor)
Residential Child
General
Residential Adult
Default Value
1.0E-06
1.0E-04
2.0E-01
1.0E+00
70
15
6
350
24
Non-Residential Worker
Construction Worker
70
80
25
250
8
3527
0.12
100
19652
0.83
0.67
North Carolina DEQ Risk Calculator
Exposure Factors and Target Risks
Version Date: July 2023
Basis: May 2023 EPA RSL TableSite ID: Brownfields Project No. 26008-22-060
Exposure Parameter Site Specific Value Justification
Input Form 1B
Exposure Unit ID: Service Garage Building (Worst-Case Sub-slab soil vapor)
Default Value
Recreator Trespasser
Lifetime (LT) (years)70 NA 70
Averaging Time (AT) (days/yr)365 NA 365
Body Weight (BW) (kg)15 NA 15
Exposure Duration 0-2 (ED) (yr)2 NA 2
Exposure Duration 2-6 (ED) (yr)4 NA 4
Exposure Frequency (EF) (d/yr)195 NA 195
Exposure Time (ET) (hr/d)2 NA 2
Skin Surface Area - Soil Exposure (SAs) (cm2)2373 NA 2373
Soil Adherence Factor (AF) (mg/cm2)0.2 NA 0.2
Soil Ingestion Rate (IRS) (mg/day)200 NA 200
Skin Surface Area - Water Exposure (SAw) (cm2)6365 NA 6365
Water Ingestion Rate (IRW) (L/hr)0.12 NA 0.12
Water Exposure Time (ETevent) (hr/event)2 NA 2
Water Event Frequency (EV) (events/day)1 NA 1
Recreator Trespasser
Lifetime (LT) (years)70 70 70
Body Weight (BW) (kg)80 45 80
Exposure Duration 6-16 (ED) (yr)10 10 10
Exposure Duration 16-26 (ED) (yr)10 0 10
Exposure Frequency (EF) (d/yr)195 90 195
Exposure Time (ET) (hr/d)2 2 2
Skin Surface Area - Soil Exposure (SAs) (cm2)6032 6032 6032
Soil Adherence Factor (AF) (mg/cm2)0.07 0.2 0.07
Soil Ingestion Rate (IRS) (mg/day)100 200 100
Skin Surface Area - Water Exposure (SAw) (cm2)19652 19652 19652
Water Ingestion Rate (IRW) (L/hr)0.11 0.11 0.11
Water Exposure Time (ETevent) (hr/event)2 2 2
Water Event Frequency (EV) (events/day)1 1 1
User Defined Child
User Defined Adult
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2023
Basis: May 2023 EPA RSL Table
Site ID: Brownfields Project No. 26008-22-060
Exposure Unit ID: Service Garage Building (Worst-Case Sub-slab soil vapor)
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
310 67-64-1 Acetone ug/m3
3 71-43-2 Benzene ug/m3
13 75-27-4 Bromodichloromethane ug/m3
36 75-15-0 Carbon Disulfide ug/m3
140 67-66-3 Chloroform ug/m3
0.35 74-87-3 Chloromethane ug/m3
23 110-82-7 Cyclohexane ug/m3
1.5 75-71-8 Dichlorodifluoromethane ug/m3
2.1 75-34-3 Dichloroethane, 1,1-ug/m3
1.5 156-59-2 Dichloroethylene, cis-1,2-ug/m3
140 123-91-1 Dioxane, 1,4-ug/m3
8.1 100-41-4 Ethylbenzene ug/m3
41 142-82-5 Heptane, N-ug/m3
15 110-54-3 Hexane, N-ug/m3
2.6 591-78-6 Hexanone, 2-ug/m3
100 67-63-0 Isopropanol ug/m3
72 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
3.1 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m3
0.95 1634-04-4 Methyl tert-Butyl Ether (MTBE)ug/m3
64 91-20-3 ~Naphthalene ug/m3
110 115-07-1 Propylene ug/m3
1.3 100-42-5 Styrene ug/m3
1100 127-18-4 Tetrachloroethylene ug/m3
8.5 108-88-3 Toluene ug/m3
0.43 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-ug/m3
18 71-55-6 Trichloroethane, 1,1,1-ug/m3
32 79-01-6 Trichloroethylene ug/m3
1.2 75-69-4 Trichlorofluoromethane ug/m3
12 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
3.4 108-67-8 Trimethylbenzene, 1,3,5-ug/m3
0.26 75-01-4 Vinyl Chloride ug/m3
16 108-38-3 Xylene, m-ug/m3
10 95-47-6 Xylene, o-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Exposure point concentrations represent the highest detection among the sub-slab soil gas samples collected on September 13, 2023 from the service garage building.
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: July 2023
Basis: May 2023 EPA RSL Table
Site ID: Brownfields Project No. 26008-22-060
Exposure Unit ID: Service Garage Building (Worst-Case Sub-slab soil vapor)
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 7.6E-05 2.1E+00 YES
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not modeled, user did not check this pathway as complete.
4. NC = Pathway not calculated, required contaminant migration parameters were not entered.
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: July 2023
Basis: May 2023 EPA RSL Table
Site ID: Brownfields Project No. 26008-22-060
Exposure Unit ID: Service Garage Building (Worst-Case Sub-slab soil vapor)
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 310 9.3 --
71-43-2 Benzene 3 0.09 3.6E-01 6.3E+00 2.5E-07 2.9E-03
75-27-4 Bromodichloromethane 13 0.39 7.6E-02 -5.1E-06
75-15-0 Carbon Disulfide 36 1.08 -1.5E+02 1.5E-03
67-66-3 Chloroform 140 4.2 1.2E-01 2.0E+01 3.4E-05 4.1E-02
74-87-3 Chloromethane 0.35 0.0105 -1.9E+01 1.1E-04
110-82-7 Cyclohexane 23 0.69 -1.3E+03 1.1E-04
75-71-8 Dichlorodifluoromethane 1.5 0.045 -2.1E+01 4.3E-04
75-34-3 Dichloroethane, 1,1-2.1 0.063 1.8E+00 -3.6E-08
156-59-2 Dichloroethylene, cis-1,2-1.5 0.045 -8.3E+00 1.1E-03
123-91-1 Dioxane, 1,4-140 4.2 5.6E-01 6.3E+00 7.5E-06 1.3E-01
100-41-4 Ethylbenzene 8.1 0.243 1.1E+00 2.1E+02 2.2E-07 2.3E-04
142-82-5 Heptane, N-41 1.23 -8.3E+01 2.9E-03
110-54-3 Hexane, N-15 0.45 -1.5E+02 6.2E-04
591-78-6 Hexanone, 2-2.6 0.078 -6.3E+00 2.5E-03
67-63-0 Isopropanol 100 3 -4.2E+01 1.4E-02
78-93-3 Methyl Ethyl Ketone (2-Butanone)72 2.16 -1.0E+03 4.1E-04
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)3.1 0.093 -6.3E+02 3.0E-05
1634-04-4 Methyl tert-Butyl Ether (MTBE)0.95 0.0285 1.1E+01 6.3E+02 2.6E-09 9.1E-06
91-20-3 ~Naphthalene 64 1.92 8.3E-02 6.3E-01 2.3E-05 6.1E-01
115-07-1 Propylene 110 3.3 -6.3E+02 1.1E-03
100-42-5 Styrene 1.3 0.039 -2.1E+02 3.7E-05
127-18-4 Tetrachloroethylene 1100 33 1.1E+01 8.3E+00 3.1E-06 7.9E-01
108-88-3 Toluene 8.5 0.255 -1.0E+03 4.9E-05
76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-0.43 0.0129 -1.0E+03 2.5E-06
71-55-6 Trichloroethane, 1,1,1-18 0.54 -1.0E+03 1.0E-04
79-01-6 Trichloroethylene 32 0.96 4.8E-01 4.2E-01 2.0E-06 4.6E-01
75-69-4 Trichlorofluoromethane 1.2 0.036 --
95-63-6 Trimethylbenzene, 1,2,4-12 0.36 -1.3E+01 5.8E-03
108-67-8 Trimethylbenzene, 1,3,5-3.4 0.102 -1.3E+01 1.6E-03
75-01-4 Vinyl Chloride 0.26 0.0078 1.7E-01 2.1E+01 4.7E-08 7.5E-05
108-38-3 Xylene, m-16 0.48 -2.1E+01 4.6E-03
95-47-6 Xylene, o-10 0.3 -2.1E+01 2.9E-03
Cumulative:7.6E-05 2.1E+00
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator

Attachment C

Vapor Intrusion Mitigation Design Drawings
Sheets VM-1, VM-1A, VM-1B, VM-1C, VM-1D, VM-1E, VM-2, VM-3, VM-4, and VM-5
(dated October 19, 2023)
DNUP
DN
UP
PARKING EGRESSSTAIR 100
STAIR 600STAIR 700
STAIR 800
STAIR 400
ELEC RM 2
695.50'
6.20% UP TO L2
700.00'
STAIR 900
STAIR 200EX
E100
E300
E400
PARKING EGRESSFIRE PUMPBIKE RM 1ELEC RM 1T / R ROOM
STAIR 3008.33% UP
COWORKING
2,352 SF
175 SF376 SF33 BIKES546 SF
STAIR 500CY EGRESSCY EGRESSCY EGRESSCY EGRESS
LEASING &
AMENITIES
10,622 SF
UNIT A1.2
UNIT A1.3
UNIT A4
UNIT A4UNIT A1UNIT B1UNIT A1UNIT B3
UNIT S1.3
UNIT A1
UNIT A3
UNIT A3
UNIT A4
UNIT A4 UNIT A9.1 UNIT A4
UNIT A4
UNIT A1
UNIT A1.1
UNIT A1.1
UNIT A1.1
UNIT A1
UNIT A4
UNIT A4UNIT A9.1UNIT A4
UNIT A4
UNIT A1
UNIT A1.1
UNIT A1.1
UNIT A1
UNIT A1.1
UNIT A1.5
UNIT A1
UNIT A1
UNIT A1
UNIT A1UNIT A5.2UNIT A5.2UNIT S1UNIT S1UNIT S1UNIT S1UNIT A8UNIT S1UNIT A6
UNIT S4 UNIT A3
UNIT A3
UNIT B1.1
UNIT B1.1
UNIT A1
UNIT S1.3
UNIT A5
UNIT A6 UNIT S1.4 UNIT S1 UNIT S1 UNIT S2 UNIT B1
UNIT S1UNIT S2UNIT A3
UNIT A3
UNIT A1A
UNIT S2
UNIT B1.1
UNIT S1.1
UNIT A1A
UNIT A3
UNIT A3 UNIT A9.1 UNIT A3
UNIT A3
UNIT A1
UNIT A9.1 SPLY
8.33% UP
POOL
COURTYARD
AMENITY
COURTYARD
AMENITY
COURTYARD
PARKING DECK
695.5'
695.5'
695.5'
695.5'
695.5'
695.5'
698.0'698.0'
698.0'
698.0'695.5'ERCCSERCCSERCCSSTORELEC
IDF
HC STORHC STORSTORSTORLOBBY
STORIDFELEC
STORHC STOR
IDFELECSTOR
ELEC
STOR
STOR
STOR
STOR LOBBY
ELECIDF
STORSTORSTOR
STORSTORSTORLOBBY
LOBBY
PET SPA
UNIT B1
UNIT A5
UNIT B3UNIT A8
UNIT B5UNIT B5 UNIT A5 UNIT A5 7.81%14.77% UP7.81%695.50'
696.13'
699.38'
700.00'
BIKE RM 2
730 SF
UNIT B5.3
MAINT.
RECYCLING CENTER
EXIT PASSAGEWAY
POOL POOL EQUIP
CHEM MECHELECM. POOLW. POOL
CABANA
UNIT A5.2UNIT A5.2DW PUMP166 SF506 SF
876 SF 414 SFLOADING
1,037 SF
E200 LOBBY
EDEV RMUTILITY
UNIT B1
ERCCS
DOGPARK
691.60'
691.20'
691.60'
691.60'
692.05'
692.75'
692.32'
691.30'
687.30'
695.48'
695.48'
697.98'
697.98'
697.98'
695.48'
695.48'695.48'695.48'
695.46'695.46'
695.46'
688.46'
690.21'693.71'
691.96'8.33% UP8.33% UP8.33% UP8.33% UPUNIT S2.1EXPANSIONJOINT EXPANSIONJOINTCONSTRUCTIONJOINT
CONSTRUCTIONJOINT
CONSTRUCTIONJOINT CONSTRUCTIONJOINT
EXPANSIONJOINT
CONSTRUCTIONJOINTCON
S
T
R
U
C
T
I
O
N
JOINT
CONSTRUCTIONJOINTCONSTRUCTIONJOINTCONSTRUCTIONJOINTCONSTRUCTIONJOINTCONSTRUCTIONJOINTCONSTRUCTIONJOINTCONSTRUCTIONJOINT
CONSTRUCTIONJOINTCONSTRUCTIONJOINTCONSTRUCTIONJOINT
CONSTRUCTIONJOINT CONSTRUCTIONJOINT
CONSTRUCTIONJOINT CONSTRUCTIONJOINT
CONSTRUCTIONJOINTCONSTRUCTIONJOINTCONSTRUCTIONJOINT
CONSTRUCTIONJOINT
CONSTRUCTIONJOINT
CONSTRUCTIONJOINT
CONSTRUCTIONJOINTCONSTRUCTIONJOINTCONSTRUCTIONJOINT
CONSTRUCTIONJOINTCONSTRUCTIONJOINTCONSTRUCTIONJOINTEXPANSIONJOINT
CONSTRUCTIONJOINT
CONSTRUCTION JOINTCONSTRUCTION JOINTCONSTRUCTION JOINT
CONSTRUCTION JOINT CONSTRUCTIONJOINTF3030F3030F3030F3030F3030F3030F3030F3030HF6HF6HF6HF6HF6HF6HF6HF6HF6HF6HF6HF6 HF5HF5HF5HF5HF5HF5 HF5HF5HF4HF4
HF5HF5HF5HF5HF5HF5HF4HF4HF6HF6HF4HF4HF5
HF5HF4HF4HF4HF4HF5HF5
HF5HF5HF4HF4 HF4HF4
HF5HF5HF5HF5 HF5HF5HF5HF5HF5HF5HF5HF5HF5HF5
HF5HF5HF5HF5HF5HF5HF5
HF5HF5HF6HF6HF5HF5HF5HF5HF6HF6HF6HF6HF5HF5HF5
HF5HF6HF6 HF5HF5HF4HF4HF4HF4HF6HF4HF6F4040F4040F4040F4040F4040F4040F4040F4040POOL
COURTYARD
POOL
E-1
E-2
E-3
E-4
E-5
E-6
E-7
E-8
E-9
E-10
E-11
E-12
E-13
E-14 E-15 E-16
E-17
E-18
E-19
E-20
E-21
E-22
E-23
E-24
E-25
E-26
E-27
E-28
E-29
MP-2
MP-1
MP-4
MP-3
MP-8
MP-7
MP-9 MP-10
MP-11
MP-12
MP-13
MP-15
MP-16
MP-17
MP-18 MP-20
MP-21
MP-23
MP-24
MP-22
MP-26
MP-27
MP-29
MP-30
MP-28
MP-31
MP-33
MP-36
MP-35
MP-37
MP-5
MP-6
MP-19
MP-32
MP-34
MP-14 MP-25
H&H NO. EMB-005
VAPOR INTRUSION MITIGATIONPLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSIONMITIGATION SYSTEM
OVERALL PLAN VIEWLAYOUT
LEVEL 1
DEVELOPER:
EMBREY PARTNERS,LLC
1020 N.E. LOOP 410SUITE 700SAN ANTONIO, TEXAS
VM-1
PROFESSIONALAPPROVAL
REVISIONS
REV DATE DESCRIPTION
0 12/20/22 DEQ SUBMISSION
1 10/19/23 DEQ - REVISION 1
2 11/21/23 DEQ - REVISION 1 (IFC)NODA N TRYON EPL3027 N. TRYON STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 26008-22-060LEGEND
THICKENED SLAB
OUTDOOR OR OPEN AIR SPACE
EXTENT OF VAPOR BARRIER
HORIZONTAL COLLECTION PIPING
3" DIA SCH 40 SOLID PVC PIPE
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH EXHAUST ID (SEE DETAIL 30/VM-4)
2" DIA SOLID PVC MONITORING POINT
PROPOSED INDOOR AIR SAMPLE LOCATION
MP-1
E-1
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-3, VM-4, AND VM-5.
2.STANDARD SLIP JOINT OR SOLVENT WELDED SCH 40 PVC FITTINGS SHALL BEUSED ON HORIZONTAL COLLECTION PIPE.
3.THE END OF EACH HORIZONTAL COLLECTION PIPE AND EACH MONITORINGPOINT SHALL CONTAIN A PVC END CAP OR TERMINATION SCREEN PERSPECIFICATIONS #3 AND #7.
4.THE INTAKE OF THE MONITORING POINTS SHALL BE A MINIMUM 5 FT FROMEXTERIOR WALLS OR FOOTINGS.
5.HORIZONTAL PIPE RUNS SHALL BE SLOPED A MINIMUM 1% TO ALLOW WATERDRAINAGE TOWARDS THE SLAB.
DATE: 11-21-23
SEE SHEET VM-1A
SEE SHEET VM-1B
SEE SHEET VM-1C
SEE SHEET VM-1D
SEE SHEET VM-1E
IAS-3
IAS-4
IAS-1
IAS-2
11/21/23
IAS-5
S:\AAA-Master Projects\Embrey (EMB)\EMB.005 3027 N Tryon Street Brownfields\VIMS\Figures\EMB-005-VIMS_R0.dwg
DN PARKING EGRESSSTAIR 400
E100 PARKING EGRESSFIRE PUMPBIKE RM 1175 SFCY EGRESS
LEASING &
AMENITIES
10,622 SF
UNIT B1.1
UNIT A1
UNIT S1.3
UNIT A5
UNIT A6 UNIT S1.4 UNIT S1 UNIT S1 UNIT S2 UNIT B1
UNIT S1UNIT S2UNIT A3
UNIT A3
UNIT A1A
UNIT S2
UNIT B1.1 UNIT A9.1 SPLY
8.33% UP
POOL
COURTYARD
695.5'
695.5'
698.0'
698.0'695.5'STORELEC
IDF
STOR
LOBBY
LOBBY
PET SPA
POOL POOL EQUIP
CHEM MECHELECM. POOLW. POOL
CABANA
DW PUMP166 SFED697.98'
697.98'
695.48'
695.48'EXPANSIONJOINTCONSTRUCTIONJOINT
CONSTRUCTIONJOINT EXPANSIONJOINTCONSTRUCTIONJOINTCONSTRUCTIONJOINT EXPANSIONJOINTCONSTRUCTIONJOINT
CONSTRUCTION JOINTCONSTRUCTION JOINTCONSTRUCTION JOINT
CONSTRUCTION JOINT CONSTRUCTIONJOINTHF6HF6HF4HF4HF6HF6HF4HF4HF5HF5HF5HF5F4040F4040POOL
COURTYARD
POOL
E-1
E-2
E-3
E-4
E-5
E-6
E-7
E-8
E-9
MP-2
MP-1
MP-4
MP-3
MP-8
MP-7
MP-9 MP-10
MP-16
MP-5
MP-6
H&H NO. EMB-005
VAPOR INTRUSION MITIGATIONPLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSIONMITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 1 - AREA A
DEVELOPER:
EMBREY PARTNERS,LLC
1020 N.E. LOOP 410SUITE 700SAN ANTONIO, TEXAS
VM-1A
PROFESSIONALAPPROVALNODA N TRYON EPL3027 N. TRYON STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 26008-22-060LEGEND
THICKENED SLAB
OUTDOOR OR OPEN AIR SPACE
EXTENT OF VAPOR BARRIER
HORIZONTAL COLLECTION PIPING
3" DIA SCH 40 SOLID PVC PIPE
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH EXHAUST ID (SEE DETAIL 30/VM-4)
2" DIA SOLID PVC MONITORING POINT
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-3, VM-4, AND VM-5.
2.STANDARD SLIP JOINT OR SOLVENT WELDED SCH 40 PVC FITTINGS SHALL BE USED ONHORIZONTAL COLLECTION PIPE.
3.THE END OF EACH HORIZONTAL COLLECTION PIPE AND EACH MONITORING POINT SHALLCONTAIN A PVC END CAP OR TERMINATION SCREEN PER SPECIFICATIONS #3 AND #7.
4.THE INTAKE OF THE MONITORING POINTS SHALL BE A MINIMUM 5 FT FROM EXTERIORWALLS OR FOOTINGS.
5.HORIZONTAL PIPE RUNS SHALL BE SLOPED A MINIMUM 1% TO ALLOW WATER DRAINAGETOWARDS THE SLAB.
DATE: 11-21-23
VM-1B
VM-1C
MP-1E-1
DRILL MIN TWO 5/8" HOLES FORDRAINAGE IN SOLID PIPE OR ASDIRECTED BY FIELD ENGINEER
26
VM-4
25
VM-4
5
VM-3
3
VM-3
8
VM-321
VM-4
2
VM-3
1
VM-3
26VM-4
6
VM-3
20
VM-4
11
VM-3
7VM-3
26
VM-4
26VM-4
6
VM-3
17/30
VM-4
14
VM-3
10
VM-3
23
VM-4
13
VM-3
25
VM-4
23
VM-4
18A
VM-4
18A
VM-4
18A
VM-4
18AVM-4
17VM-4
21VM-4
17
VM-4
21
VM-4 REVISIONS
REV DATE DESCRIPTION
0 12/20/22 DEQ SUBMISSION
1 10/19/23 DEQ - REVISION 1
2 11/21/23 DEQ - REVISION 1 (IFC)
11/21/23
S:\AAA-Master Projects\Embrey (EMB)\EMB.005 3027 N Tryon Street Brownfields\VIMS\Figures\EMB-005-VIMS_R0.dwg
STAIR 100
695.50'
E300
8.33% UP
STAIR 500CY EGRESSUNIT A5.2UNIT A5.2UNIT S1UNIT S1UNIT S1UNIT S1UNIT A8UNIT S1UNIT A6
UNIT S4 UNIT A3
UNIT A3
UNIT B1.1
UNIT S1.1
UNIT A1A
UNIT A3
UNIT A3 UNIT A9.1 UNIT A3
UNIT A3
UNIT A1
POOL
COURTYARD
698.0'698.0'HC STORHC STORSTORSTORLOBBY
STORIDFELEC
STORSTORLOBBY
UNIT B5
BIKE RM 2
730 SFED
UNIT B1
ERCCS
DOGPARK
697.98'
UNIT S2.1
CONSTRUCTIONJOINT CONSTRUCTIONJOINT
CONSTRUCTIONJOINTCON
S
T
R
U
C
T
I
O
NJOINT
CONSTRUCTIONJOINTCONSTRUCTIONJOINTCONSTRUCTIONJOINTCONSTRUCTIONJOINTCONSTRUCTIONJOINT
CONSTRUCTIONJOINT
F303
0 F3030F3030F3030HF6HF6HF4HF4HF4HF4HF5HF5
POOL
COURTYARD
E-8
E-10
E-11
E-12
E-13
E-14
MP-11
MP-12
MP-13
MP-15 MP-17
MP-18
MP-14 NODA N TRYON EPL3027 N. TRYON STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 26008-22-060DATE: 11-21-23
H&H NO. EMB-005
VAPOR INTRUSION MITIGATIONPLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSIONMITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 1 - AREA B
DEVELOPER:
EMBREY PARTNERS,LLC
1020 N.E. LOOP 410SUITE 700SAN ANTONIO, TEXAS
VM-1B
PROFESSIONALAPPROVAL
LEGEND
THICKENED SLAB
OUTDOOR OR OPEN AIR SPACE
EXTENT OF VAPOR BARRIER
HORIZONTAL COLLECTION PIPING
3" DIA SCH 40 SOLID PVC PIPE
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH EXHAUST ID (SEE DETAIL 30/VM-4)
2" DIA SOLID PVC MONITORING POINTMP-12
E-12
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-3, VM-4, AND VM-5.
2.STANDARD SLIP JOINT OR SOLVENT WELDED SCH 40 PVC FITTINGS SHALL BE USED ONHORIZONTAL COLLECTION PIPE.
3.THE END OF EACH HORIZONTAL COLLECTION PIPE AND EACH MONITORING POINT SHALLCONTAIN A PVC END CAP OR TERMINATION SCREEN PER SPECIFICATIONS #3 AND #7.
4.THE INTAKE OF THE MONITORING POINTS SHALL BE A MINIMUM 5 FT FROM EXTERIORWALLS OR FOOTINGS.
5.HORIZONTAL PIPE RUNS SHALL BE SLOPED A MINIMUM 1% TO ALLOW WATER DRAINAGETOWARDS THE SLAB.
VM-1C
VM-1A
17VM-4
26
VM-4
25VM-4
26VM-4
17/30VM-4
13VM-3
4
VM-3
3
VM-3
11
VM-3
18A
VM-4
27
VM-4
12
VM-3
23
VM-4
27VM-4
5
VM-3
21
VM-4
18AVM-4
18AVM-4
17
VM-4
19
VM-4
22
VM-4
REVISIONS
REV DATE DESCRIPTION
0 12/20/22 DEQ SUBMISSION
1 10/19/23 DEQ - REVISION 1
2 11/21/23 DEQ - REVISION 1 (IFC)
11/21/23
S:\AAA-Master Projects\Embrey (EMB)\EMB.005 3027 N Tryon Street Brownfields\VIMS\Figures\EMB-005-VIMS_R0.dwg
DNUP
DN PARKING EGRESSSTAIR 100
695.50'
6.20% UP TO L2
700.00'
STAIR 900
STAIR 200EX
E100 PARKING EGRESSFIRE PUMPBIKE RM 1ELEC RM 1T / R ROOM
STAIR 3008.33% UP 175 SF376 SF33 BIKES546 SF
UNIT A3
UNIT A3
UNIT A4
UNIT A4
UNIT A1
UNIT A1.1
UNIT A1.1
UNIT A1
UNIT A1.1
UNIT A5.2UNIT A5.2
SPLY
PARKING DECK
695.5'
695.5'
695.5'
695.5'
698.0'698.0'
698.0'STORIDFELEC HC STOR
IDFELECSTOR
STOR
STOR
LOBBY
LOBBY
UNIT B5UNIT B5 UNIT A5 UNIT A5 7.81%14.77% UP7.81%695.50'
696.13'
699.38'
700.00'
BIKE RM 2
730 SF
MAINT.
RECYCLING CENTER
EXIT PASSAGEWAY
POOL EQUIP MECHELECM. POOL
UNIT A5.2UNIT A5.2DW PUMP166 SF506 SF
876 SF 414 SFLOADING
1,037 SF
E200 LOBBY
EDEV RMUTILITY
695.48'695.48'695.48'695.48'CONSTRUCTIONCONSTRUCTIONCONSTRUCTIONJOINTCONSTRUCTIONJOINTCONSTRUCTIONCONSTRUCTIONJOINTCONSTRUCTIONJOINT
CONSTRUCTIONJOINT
CONSTRUCTIONJOINT
HF6HF6HF6HF6HF6HF6HF6HF6HF6HF6HF5HF5HF5HF5HF5
HF5HF5HF4HF4HF4HF4HF6HF6HF6HF5HF5HF5
HF5HF6HF6E-14 E-15 E-16
E-18
E-28
E-29
MP-1
MP-15 MP-17
MP-18 MP-20
MP-21
MP-22
MP-36
MP-35
MP-37
MP-19
MP-34
NODA N TRYON EPL3027 N. TRYON STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 26008-22-060DATE: 11-21-23
H&H NO. EMB-005
VAPOR INTRUSION MITIGATIONPLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSIONMITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 1 - AREA C
DEVELOPER:
EMBREY PARTNERS,LLC
1020 N.E. LOOP 410SUITE 700SAN ANTONIO, TEXAS
VM-1C
PROFESSIONALAPPROVAL
LEGEND
THICKENED SLAB
OUTDOOR OR OPEN AIR SPACE
EXTENT OF VAPOR BARRIER
HORIZONTAL COLLECTION PIPING
3" DIA SCH 40 SOLID PVC PIPE
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH EXHAUST ID (SEE DETAIL 30/VM-4)
2" DIA SOLID PVC MONITORING POINTMP-36E-29
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-3, VM-4, AND VM-5.
2.STANDARD SLIP JOINT OR SOLVENT WELDED SCH 40 PVC FITTINGS SHALL BE USED ONHORIZONTAL COLLECTION PIPE.
3.THE END OF EACH HORIZONTAL COLLECTION PIPE AND EACH MONITORING POINT SHALLCONTAIN A PVC END CAP OR TERMINATION SCREEN PER SPECIFICATIONS #3 AND #7.
4.THE INTAKE OF THE MONITORING POINTS SHALL BE A MINIMUM 5 FT FROM EXTERIORWALLS OR FOOTINGS.
5.HORIZONTAL PIPE RUNS SHALL BE SLOPED A MINIMUM 1% TO ALLOW WATER DRAINAGETOWARDS THE SLAB.
VM-1E
VM-1D
VM-1A
VM-1B
16VM-4
16VM-427
VM-4
27VM-4
26
VM-4 4
VM-3
21
VM-4
12
VM-3
16VM-4
17
VM-4
19VM-4
21VM-4
26VM-4
27
VM-4
19
VM-4
27
VM-4
27
VM-4
26VM-4
14
VM-3
4
VM-3
4VM-33VM-3 5VM-3
11
VM-3
21
VM-4
2VM-3
26VM-4
7
VM-3
1
VM-3
3VM-3
12
VM-3
13
VM-3
23
VM-4
14VM-3
17
VM-4
REVISIONS
REV DATE DESCRIPTION
0 12/20/22 DEQ SUBMISSION
1 10/19/23 DEQ - REVISION 1
2 11/21/23 DEQ - REVISION 1 (IFC)
11/21/23
S:\AAA-Master Projects\Embrey (EMB)\EMB.005 3027 N Tryon Street Brownfields\VIMS\Figures\EMB-005-VIMS_R0.dwg
DNUP
STAIR 600STAIR 700
ELEC RM 2
700.00'
STAIR 900
STAIR 200EX CY EGRESSUNIT A3
UNIT A1
UNIT A1.1
UNIT A1.1
UNIT A1.1
UNIT A1
UNIT A4
UNIT A4UNIT A9.1UNIT A4
UNIT A4
UNIT A1
UNIT A1.1
UNIT A1.1
UNIT A1
UNIT A1.1
UNIT A1
UNIT A1
UNIT A1
UNIT A1
AMENITY
COURTYARD
AMENITY
COURTYARD
695.5'ERCCSHC STOR
IDFELECSTOR
ELEC
STOR
STOR
STORUNIT B1
UNIT A5
UNIT B3UNIT A8
UNIT B5
691.60'
691.60'
692.05'
692.75'
692.32'
691.30'
695.48'
695.46'CONSTRUCTIONJOINTCONSTRUCTIONJOINT CONSTRUCTIONJOINT
CONSTRUCTIONJOINT CONSTRUCTIONJOINT
CONSTRUCTIONJOINTCONSTRUCTIONJOINT
CONSTRUCTIONJOINT
JOINT
HF5HF5HF5HF5HF5HF5HF5HF5HF5HF5
HF4HF4HF4HF4HF5HF5HF5HF5HF5HF5HF5HF5HF5HF5HF5HF5
HF5HF5HF5HF6HF6HF5HF5HF5
HF5HF6HF6E-17
E-18
E-19
E-20
E-21
E-22E-28
MP-21
MP-23
MP-24
MP-22
MP-26
MP-27
MP-35
MP-34
MP-25 NODA N TRYON EPL3027 N. TRYON STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 26008-22-060DATE: 11-21-23
H&H NO. EMB-005
VAPOR INTRUSION MITIGATIONPLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSIONMITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 1 - AREA D
DEVELOPER:
EMBREY PARTNERS,LLC
1020 N.E. LOOP 410SUITE 700SAN ANTONIO, TEXAS
VM-1D
PROFESSIONALAPPROVAL
LEGEND
THICKENED SLAB
OUTDOOR OR OPEN AIR SPACE
EXTENT OF VAPOR BARRIER
HORIZONTAL COLLECTION PIPING
3" DIA SCH 40 SOLID PVC PIPE
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH EXHAUST ID (SEE DETAIL 30/VM-4)
2" DIA SOLID PVC MONITORING POINTMP-26E-22
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-3, VM-4, AND VM-5.
2.STANDARD SLIP JOINT OR SOLVENT WELDED SCH 40 PVC FITTINGS SHALL BE USED ONHORIZONTAL COLLECTION PIPE.
3.THE END OF EACH HORIZONTAL COLLECTION PIPE AND EACH MONITORING POINT SHALLCONTAIN A PVC END CAP OR TERMINATION SCREEN PER SPECIFICATIONS #3 AND #7.
4.THE INTAKE OF THE MONITORING POINTS SHALL BE A MINIMUM 5 FT FROM EXTERIORWALLS OR FOOTINGS.
5.HORIZONTAL PIPE RUNS SHALL BE SLOPED A MINIMUM 1% TO ALLOW WATER DRAINAGETOWARDS THE SLAB.
VM-1C
VM-1E
16
VM-4
17
VM-4
27VM-4
26
VM-4
4
VM-3
5
VM-3
11VM-3
2
VM-3
26VM-4
1VM-3
3VM-3
17
VM-4
12VM-3 13
VM-3
19
VM-4
25
VM-4
26VM-4
23VM-4
22VM-4 12VM-3
12
VM-3
18
VM-4
28
VM-4
28VM-4
25
VM-4
17VM-4
17
VM-4
19VM-4
23
VM-4
21VM-3
REVISIONS
REV DATE DESCRIPTION
0 12/20/22 DEQ SUBMISSION
1 10/19/23 DEQ - REVISION 1
2 11/21/23 DEQ - REVISION 1 (IFC)
11/21/23
S:\AAA-Master Projects\Embrey (EMB)\EMB.005 3027 N Tryon Street Brownfields\VIMS\Figures\EMB-005-VIMS_R0.dwg
UP
STAIR 700
STAIR 800
STAIR 900
E400
COWORKING
2,352 SF
CY EGRESSUNIT A1.2
UNIT A1.3
UNIT A4
UNIT A4UNIT A1UNIT B1UNIT A1
UNIT B3
UNIT S1.3
UNIT A1
UNIT A3
UNIT A3
UNIT A4
UNIT A4 UNIT A9.1 UNIT A4
UNIT A4
UNIT A1
UNIT A1.1
UNIT A1
UNIT A1.1
UNIT A1.5
UNIT A1
UNIT A1
695.5'ERCCSERCCSSTOR
STOR
STOR
STOR LOBBY
ELECIDF
STORSTORSTORUNIT B5.3
EXIT PASSAGEWAY
691.60'
691.20'
691.30'
687.30'
695.48'
695.46'695.46'
688.46'
690.21'693.71'
691.96'8.33% UP8.33% UP8.33% UP8.33% UPCONSTRUCTIONJOINT CONSTRUCTIONJOINT
CONSTRUCTIONJOINT
CONSTRUCTIONJOINT
CONSTRUCTIONJOINTCONSTRUCTIONJOINTCONSTRUCTIONJOINT
CONSTRUCTIONJOINT F3030F3030F303
0
F303
0 HF5HF5HF4HF4HF5HF5HF5HF5HF5HF5HF5HF5HF5HF5HF5
HF5HF5HF5HF5HF5HF5HF
5
HF5HF5HF6HF6HF5HF5HF5HF5HF6HF6HF6HF6HF5HF5HF4HF4HF4HF4HF6HF4HF6F4040F4040F4040F4040F4040F4040E-22
E-23
E-24
E-25
E-26
E-27
E-28
MP-27
MP-29
MP-30
MP-28
MP-31
MP-33
MP-32
MP-34 NODA N TRYON EPL3027 N. TRYON STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 26008-22-060DATE: 11-21-23
H&H NO. EMB-005
VAPOR INTRUSION MITIGATIONPLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSIONMITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 1 - AREA E
DEVELOPER:
EMBREY PARTNERS,LLC
1020 N.E. LOOP 410SUITE 700SAN ANTONIO, TEXAS
VM-1E
PROFESSIONALAPPROVAL
LEGEND
THICKENED SLAB
OUTDOOR OR OPEN AIR SPACE
EXTENT OF VAPOR BARRIER
HORIZONTAL COLLECTION PIPING
3" DIA SCH 40 SOLID PVC PIPE
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH EXHAUST ID (SEE DETAIL 30/VM-4)
2" DIA SOLID PVC MONITORING POINTMP-30
E-24
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-3, VM-4, AND VM-5.
2.STANDARD SLIP JOINT OR SOLVENT WELDED SCH 40 PVC FITTINGS SHALL BE USED ONHORIZONTAL COLLECTION PIPE.
3.THE END OF EACH HORIZONTAL COLLECTION PIPE AND EACH MONITORING POINT SHALLCONTAIN A PVC END CAP OR TERMINATION SCREEN PER SPECIFICATIONS #3 AND #7.
4.THE INTAKE OF THE MONITORING POINTS SHALL BE A MINIMUM 5 FT FROM EXTERIORWALLS OR FOOTINGS.
5.HORIZONTAL PIPE RUNS SHALL BE SLOPED A MINIMUM 1% TO ALLOW WATER DRAINAGETOWARDS THE SLAB.
VM-1C
VM-1D
4
VM-3
21VM-4
12
VM-3
17
VM-4
28
VM-4
26VM-4
14VM-3
11
VM-3
26
VM-4
1
VM-3
21
VM-4
26
VM-4
25
VM-4
17
VM-4
22VM-4
3VM-3
2VM-3
26
VM-4
23
VM-4
18AVM-4
23VM-4
18A
VM-4
17VM-4
19
VM-4
REVISIONS
REV DATE DESCRIPTION
0 12/20/22 DEQ SUBMISSION
1 10/19/23 DEQ - REVISION 1
2 11/21/23 DEQ - REVISION 1 (IFC)
11/21/23
S:\AAA-Master Projects\Embrey (EMB)\EMB.005 3027 N Tryon Street Brownfields\VIMS\Figures\EMB-005-VIMS_R0.dwg
UNITB5
STAIR 200EX
POOL
COURTYARD
AMENITY
COURTYARD
LOBBY
PARKING DECK
5 LEVELS
475 SPACES
237 SF
FUTURE DUAL EVSTATION (TYP FOR 4)DUAL EV STATION
STAIR 900
E200
LOBBY
CONC SOG PC CONC
CONC SOG PC CONC
UP
UP
UP UP
6.20% DN TO L1 5.38% UP TO L3
UNIT B3UNIT B1.3
UNIT B1UNIT S2UNIT S1UNIT S1UNIT S1.4UNIT A6
UNIT B5
UNIT S1.3
UNIT A1
UNIT B1.1
UNIT B1.1
UNIT A3
UNIT A3UNIT S4
UNIT A6 UNIT S1 UNIT A8 UNIT S1 UNIT S1 UNIT B1 UNIT S1 UNIT S1 UNIT B5 UNIT A5.2 UNIT A5.2 UNIT B5
UNIT A1
UNIT A1
UNIT B1
UNIT A1
UNIT A1
UNIT A1.2
UNIT B1.2
UNIT B4UNIT A1.2
UNIT A1.3
UNIT A4
UNIT A4UNIT A1UNIT B1UNIT A1UNIT B3
UNIT S1.3
UNIT A1
UNIT A3
UNIT A3UNIT B1UNIT B6UNIT S1.3UNIT B1UNIT A3
UNIT A3
UNIT A1.3
UNIT A1.3
UNIT A3UNIT S1UNIT S2UNIT A3
UNIT A3
UNIT A1
UNIT S2
UNIT B1.1
UNIT S1.1
UNIT A1
UNIT A3
UNIT A3 UNIT B1.1 UNIT A3
UNIT A3
UNIT A1
UNIT S1
UNIT B1.1
UNIT A3 UNIT B1.1UNIT A4
UNIT A4
UNIT A1
UNIT A1.1
UNIT A1.1
UNIT A1.1
UNIT A1
UNIT A4
UNIT A4 UNIT B1.1
UNIT A4
UNIT A4
UNIT A1
UNIT A1.1
UNIT A1.1
UNIT A1.1
UNIT A1
UNIT A4
UNIT A4
STAIR 800
STAIR 700
STAIR 600STAIR 100
STAIR 500STAIR 400 STAIR 300E100 SPLY
E300
E400
T/R
STORSTORMECHMECHMECH MECH
ELECIDF
IDF
IDFIDFIDF
IDF
MECHELEC ELEC
MECHMECH
ELEC
ERCCSERCCSERCCSERCCSERCCSSTOR
STOR
STOR
HC STORSTORHC STORELEC
STOR
STORSTORSTORHC STOR
STORSTOR
STOR
MECHMECH
LOBBY
LOBBY
UNIT B3UNIT A8
UNIT A5.4 UNIT A5.4
712.00'
712.00'
710.10'4.99% UPUNIT B5.3
710.10'
UNIT A5.2UNIT A5.2
E-1
E-2
E-3
E-4
E-5
E-6
E-7
E-8
E-9
E-10
E-11
E-12
E-13
E-14 E-16
E-17
E-18
E-19
E-20
E-21
E-23
E-24
E-25
E-26
E-27
E-28
E-29
E-1
E-29
E-15
E-22
H&H NO. EMB-005
VAPOR INTRUSION MITIGATIONPLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSIONMITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 2
DEVELOPER:
EMBREY PARTNERS,LLC
1020 N.E. LOOP 410SUITE 700SAN ANTONIO, TEXAS
VM-2
PROFESSIONALAPPROVALNODA N TRYON EPL3027 N. TRYON STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 26008-22-060LEGEND
SOLID PVC RISER PIPE - PRIOR LEVEL CEILING
3" DIA PVC VERTICAL RISER - PRIOR LEVEL LOCATION
3" DIA PVC VERTICAL RISER - CURRENT LEVEL LOCATIONE-1
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-3, VM-4, AND VM-5.
2.STANDARD SLIP JOINT OR SOLVENT WELDED SCH 40 PVC FITTINGS SHALL BEUSED ON HORIZONTAL COLLECTION PIPE.
3.HORIZONTAL PIPE RUNS SHALL BE SLOPED A MINIMUM 1% TO ALLOW WATERDRAINAGE TOWARDS THE SLAB.
DATE: 11-21-23
E-1
29VM-4
RUN RISER E-1 THROUGH 2X6WALL FROM LEVEL 2 TO ROOF RUN RISER E-29 THROUGH 2X6WALL FROM LEVEL 2 TO ROOF
29
VM-4
REVISIONS
REV DATE DESCRIPTION
0 12/20/22 DEQ SUBMISSION
1 10/19/23 DEQ - REVISION 1
2 11/21/23 DEQ - REVISION 1 (IFC)
11/21/23
S:\AAA-Master Projects\Embrey (EMB)\EMB.005 3027 N Tryon Street Brownfields\VIMS\Figures\EMB-005-VIMS_R0.dwg
VIMS VAPOR BARRIER AND BASE COURSE1
NTSVM-3
BASE COURSE - CLEAN # 57 STONE (WASHEDWITH NO FINES), MIN 4" THICK BENEATH VIMSVAPOR BARRIER (SEE SPECIFICATION #2)
VAPOR BARRIER (SEE SPECIFICATION #2)CONCRETE FLOOR SLAB
SUB-BASE
SUB-BASESLOTTED COLLECTION PIPE2
NTSVM-3
PVC TERMINATION SCREEN(SEE SPECIFICATION #3)
CONCRETE FLOOR SLAB VAPOR BARRIER(SPECIFICATION #2)
3" SCH 40 THREADED FLUSH JOINTSLOTTED PVC PIPE SET WITHIN MIN 5"BASE COURSE (SEE SPECIFICATION #3)
VIMS BARRIER AT INTERIOR THICKENED SLAB
NTS
3
VM-3
BASE COURSE
VAPOR BARRIER
SUB-BASE
WALL (VARIES)
BASE COURSE
SUB-BASE
VIMS PIPING THROUGH INTERIOR THICKENED SLAB
NTS
4
VM-3
SOLID 3"SCH 40 PVC
VAPOR BARRIER SEALED TO PIPEPER MANUFACTURER INSTRUCTIONS
PROVIDE PIPE SUPPORT TO PREVENTLOW POINT IN SOLID PIPE. MAINTAIN 1%SLOPE TOWARD SLOTTED SECTION OFPIPE (SEE SPECIFICATION #4)
VAPOR BARRIER
SOLID TO SLOTTED 3" SCH 40PVC PIPE TRANSITION (SLIPCOUPLING OR THREADED JOINT)
WALL (VARIES)
PIPE SLEEVE(SEE SPECIFICATION #12)
VIMS AT INTERIOR COLUMN
NTS
7
VM-3
SUB-BASE
CONCRETE FLOOR SLAB
BASE COURSE
VAPOR BARRIER
CONCRETE COLUMN
CONCRETE FOOTING
VAPOR BARRIER SEALED OUTSIDEOF CONCRETE COLUMN PERMANUFACTURER INSTRUCTIONS
SEE DETAIL 9/VM-3
VIMS AT EXTERIOR COLUMN
NTS
8
VM-3
SUB-BASE
CONCRETEFLOOR SLAB
BASE COURSE
VAPOR BARRIER
CONCRETE COLUMN
VAPOR BARRIER SEALEDTO CONCRETE ON EACHSIDE OF COLUMN
TERMINATE VAPOR BARRIERAT SOIL GRADE, WHEREAPPLICABLE
SEE DETAIL 9/VM-3
VIMS AT COLUMNS - EXPANSION DETAIL
NTS
9
VM-3
CONCRETE COLUMN
CONCRETE FLOOR SLAB
VAPOR BARRIER SEALED TO CONCRETEPER MANUFACTURERS INSTRUCTIONS
COLUMN EXPANSION FORM(INSTALLED OVER VAPOR BARRIER)
VAPOR BARRIER
BASE COURSE
SUB-BASE
VIMS PIPING STUB CONNECTION THROUGH THICKENED SLAB
NTS
5
VM-3
SOLID 3"SCH 40 PVC
VAPOR BARRIER SEALED TO PIPEPER MANUFACTURER INSTRUCTIONS
PROVIDE PIPE SUPPORT TO PREVENTLOW POINT IN SOLID PIPE. MAINTAIN 1%SLOPE TOWARD SLOTTED SECTION OFPIPE (SEE SPECIFICATION #4)
VAPOR BARRIER
SOLID TO SLOTTED 3" SCH 40PVC PIPE TRANSITION (SLIPCOUPLING OR THREADED JOINT)
VAPOR BARRIER BENEATH FOOTER
WALL (VARIES)
PIPE SLEEVE(SEE SPECIFICATION #12)
3" SCH 40 PVC SLOTTEDPIPE, IF PRESENT - REFERTO PLAN VIEW SHEETS
PVC TERMINATION SCREEN(SEE SPECIFICATION #3)
VIMS AT INTERIOR COLUMN WITH EXPANSION JOINT STEP
NTS
10
VM-3
SUB-BASE
CONCRETE FLOOR SLAB
BASE COURSE
VAPOR BARRIER
CONCRETE COLUMN
CONCRETE FOOTING
VAPOR BARRIER SEALED OUTSIDEOF CONCRETE COLUMN PERMANUFACTURER INSTRUCTIONS
SEE DETAIL 9/VM-3
14
NTSVM-3 VIMS AT ELEVATOR PIT
CONTINUOUS VAPOR BARRIERSEALED PER MANUFACTURERINSTRUCTIONS
SUMP PIT
SUB-BASE
BASE COURSE
VAPOR BARRIER
WATERPROOFING MEMBRANE(IF PRESENT - REFER TO ARCH. PLANS)(SEE SPECIFICATION #13)
SEE DETAIL 15/VM-3
VAPOR BARRIER SEALED TO OUTSIDE OFCONCRETE AND WATERPROOFING MEMBRANE,IF PRESENT, PER MANUFACTURERINSTRUCTIONS (SEE DETAIL 15/VM-3)
15VM-3
SOIL SUB-BASE
VAPOR BARRIER
DRAINAGE MAT(IF PRESENT)
CONCRETE
NTSVIMS WATERPROOFING DETAIL
WATERPROOFING MEMBRANE(IF PRESENT - REFER TO ARCH. PLANS)(SEE SPECIFICATION #13)
VIMS BARRIER AT INTERIOR THICKENED SLAB WITH HOLDOWN FOOTING
NTS
11
VM-3
BASE COURSE
VAPOR BARRIER
SUB-BASE
WALL (VARIES)
VAPOR BARRIER WRAPPING FOOTINGIF POURED MONOLITHICALLYHOLDOWN FOOTING
VAPOR BARRIER SEALED TO TOP OFHOLDOWN FOOTING IF POURED SEPARATELY
VIMS PIPING AT SLAB STEP
NTS
6
VM-3
SUB-BASE
CONCRETE FLOOR SLAB
VAPOR BARRIER(SEE SPECIFICATION #1)
BASE COURSE(SEE SPECIFICATION #1)
SOLID TO SLOTTED 3" SCH 40PVC PIPE TRANSITION (SLIPCOUPLING OR THREADED JOINT)
3" SCH 40 PVC90-DEGREE ELBOW
VAPOR BARRIER SEALEDTO PIPE PERMANUFACTURERINSTRUCTIONS
SOLID 3" SCH 40 PVC(SEE SPECIFICATION #5)PIPE SLEEVE (SEESPECIFICATION #11)
WALL (VARIES)
VIMS PIPING AT INTERIOR CONCRETE WALL
NTS
12
VM-3
SUB-BASE
BASE COURSE
VAPOR BARRIER
SOLID TO SLOTTED 3" SCH 40 PVC PIPETRANSITION (SLIP COUPLING ORTHREADED JOINT)
VAPOR BARRIER SEALED TOPIPE PER MANUFACTURERINSTRUCTIONS
PIPESLEEVE
VAPOR BARRIER SEALED TO OUTSIDEOF CONCRETE AND WATERPROOFINGMEMBRANE (IF PRESENT) PERMANUFACTURER INSTRUCTIONS - SEEDETAIL 9/VM-2
VIMS PIPING AT INTERIOR CONCRETE WALL WITH EXPANSION JOINT
NTS
13
VM-3
SUB-BASE
BASE COURSE
VAPOR BARRIER
SOLID TO SLOTTED 3" SCH 40 PVC PIPETRANSITION (SLIP COUPLING ORTHREADED JOINT)
VAPOR BARRIER SEALED TOPIPE PER MANUFACTURERINSTRUCTIONS
PIPESLEEVE
VAPOR BARRIER SEALED TOOUTSIDE OF CONCRETE ANDWATERPROOFING MEMBRANE (IFPRESENT) PER MANUFACTURERINSTRUCTIONS - SEE DETAIL 15/VM-3EXPANSION JOINT
VAPOR BARRIER SEALED TO CONCRETEPER MANUFACTURER INSTRUCTIONS NODA N TRYON EPL3027 N. TRYON STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 26008-22-060DATE: 11-21-23
H&H NO. EMB-005
VAPOR INTRUSION MITIGATIONPLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSIONMITIGATION SYSTEM
SECTION DETAILS#1 - #15
DEVELOPER:
EMBREY PARTNERS,LLC
1020 N.E. LOOP 410SUITE 700SAN ANTONIO, TEXAS
VM-3
PROFESSIONALAPPROVAL
REVISIONS
REV DATE DESCRIPTION
0 12/20/22 DEQ SUBMISSION
1 10/19/23 DEQ - REVISION 1
2 11/21/23 DEQ - REVISION 1 (IFC)
11/21/23
S:\AAA-Master Projects\Embrey (EMB)\EMB.005 3027 N Tryon Street Brownfields\VIMS\Figures\EMB-005-VIMS_R0.dwg
VIMS RISER WITH SECOND LEVEL OFF-SETNTS
TO EXHAUST(SEE DETAIL 30/VM-4)
MIN 1% SLOPE TOWARDEXTRACTION POINT
CEILING TRUSSES
FLOOR
PIPE SUPPORTS PER NCBUILDING CODE
SOLID 3" SCH 40 PVC.LENGTH VARIES, SLOPED1/8" PER FOOT
3" SCH 40 PVC90-DEGREE ELBOW3" SCH 40 PVC90-DEGREE ELBOW
29VM-4
NEAREST 6" WALL
CEILING
RATED PIPE PENETRATIONFIRESTOPPING TO CONTINUE FIRERATING OF THE FLOOR-CEILINGASSEMBLY
RATED PIPE PENETRATIONFIRESTOPPING TO CONTINUE FIRERATING OF THE FLOOR-CEILINGASSEMBLY
VIMS MONITORING POINT AT WALL CONNECTION (IF WARRANTED)
NTS
23
VM-4
BASE COURSE
VAPOR BARRIER SEALED TO PIPEPER MANUFACTURERINSTRUCTIONS
WALL (VARIES)
POSITION TOP OF 2" PIPE MINIMUM 10"FROM TOP OF ACCESS PANEL DOOR
2" SCH 40 PVC 90DEGREE ELBOW
PIPE SLEEVE VAPORBARRIER
12" X 12" FIRE-RATED WALL ACCESS PANELTO MATCH CORRIDOR WALL RATING
PROVIDE PIPE SUPPORT TO PREVENT LOW POINT IN SOLIDSECTION OF PIPE. MAINTAIN MINIMUM 1% SLOPE TOWARDOPEN-END OF PIPE. (SEE SPECIFICATION #7)
2" DRAIN EXPANSION TEST PLUG
PVC TERMINATION SCREEN
POSITION AT CENTER OF WALL ORALLOW FOR AT LEAST 1/2" DISTANCEAROUND ALL SIDES OF PIPE
2" SOLID SCH 40 PVC PIPE
SLOPE
FINISHED FLOOR SLAB
2" SCH 40 PVC SET WITHIN GRAVEL LAYER
2" DRAIN EXPANSION TEST PLUG
VIMS MONITORING POINT IN FLOOR - TYPICAL DETAIL VIEW
NTS
21
VM-4
VAPOR BARRIER PENETRATION SEALED TOPIPE PER MANUFACTURER INSTRUCTIONS
2" SCH 40 PVC 90 DEGREE ELBOW
FLOOR CLEANOUT, ADJUSTABLE, 4" DIA ZURNINDUSTRIES MODEL #CO2450-PV4 (OR ENGINEERAPPROVED EQUIVALENT) FLUSH WITH FINISHED FLOOR
BASE COURSE
4" x 2" FLUSH REDUCERBUSHING
PVC TERMINATION SCREEN(SEE SPECIFICATION #7)
VIMS TURBINE VENTILATOR & EXHAUST30
NTS
TURBINE VENTILATOR FAN(EMPIRE MODEL TV04SS OR ENGINEERAPPROVED EQUIVALENT)
OUTDOOR-RATED ELECTRICAL JUNCTION BOX FORPOTENTIAL FUTURE VACUUM FAN (REFER TOSPECIFICATION #5)
RISER DUCT PIPE THROUGH ROOF
FLASHING
ROOFTOP
VM-4
RUBBER NO-HUB4" X 3" REDUCER
WALL (VARIES)
BASE COURSESUB-BASE
VAPOR BARRIER
OPEN-AIRSPACE
TERMINATE VAPOR BARRIERAT SOIL GRADE, WHEREAPPLICABLE
VAPOR BARRIER AT SLAB EDGE ADJACENT TO OPEN-AIR SPACE26
NTSVM-4
ENCLOSEDINTERIOR
VAPOR RETARDER OR MOISTUREBARRIER, IF WARRANTED, BY OTHERS
WALL (VARIES)
BASE COURSESUB-BASE
WALL (VARIES)
VAPOR BARRIER AT SLAB EDGE25
NTSVM-4
TERMINATE VAPOR BARRIER AT SOILGRADE, WHERE APPLICABLEVAPOR BARRIER
VIMS AT RETAINING WALL ADJACENT TO OCCUPIED SPACE
NTS
16
VM-4
SUB-BASE
BASE COURSE
VAPOR BARRIER
VAPOR BARRIER SEALED TO OUTSIDE OFCONCRETE AND WATERPROOFING MEMBRANE(WHERE PRESENT) PER MANUFACTURERINSTRUCTIONS (SEE DETAIL 15/VM-3)
WATERPROOFING ANDINSULATION (IF PRESENT -REFER TO ARCH. PLANS)
DRAIN
CONCRETEFLOOR SLAB
OPEN-AIR SPACE- PARKING DECKRAMP
ENCLOSEDINTERIOR
VIMS VERTICAL RISERS AT INTERIOR WALL WITH 90-DEGREE ELBOW
NTS
17
VM-4
BASE COURSE
SUB-BASE
3" SCH 40 PVC RISER DUCT PIPE(SEE SPECIFICATION #4, #5 & #6)WALL (VARIES)
SLOTTED 3" SCH 40 PVC
VAPOR BARRIER SEALED TO PIPE PERMANUFACTURER INSTRUCTIONS VAPOR BARRIER
3" SCH 40 PVC 90DEGREE ELBOW
VIMS AT VERTICAL RISERS WITH PVC TEE
NTS
18
VM-4
BASE COURSE
SUB-BASE
3" SCH 40 PVC RISER DUCT PIPE(SEE SPECIFICATION #4, #5 & #6)WALL (VARIES)
SLOTTED 3" SCH 40 PVC
VAPOR BARRIER SEALED TO PIPE PERMANUFACTURER INSTRUCTIONS VAPOR BARRIER
3" SCH 40 PVC TEE
VIMS PIPING THROUGH THICKENED FOOTING WITH RISER DUCT PIPING (TYP)
NTS
19A
VM-4
BASE COURSE
SUB-BASE
SOLID TO PERFORATED 3" SCH40 PVC PIPE TRANSITION (SLIPCOUPLING OR THREADED JOINT)
3" SCH 40 PVC RISER DUCT PIPE(SEE SPECIFICATION #3, #4 & #5)
3" SCH 40 PVC 90DEGREE ELBOW
PIPE SLEEVE VAPOR BARRIER
VAPOR LINER SEALED TO PIPE PERMANUFACTURER INSTRUCTIONS
PROVIDE PIPE SUPPORT TO PREVENTLOW POINT IN SOLID PIPE. MAINTAIN 1%SLOPE TOWARD SLOTTED SECTION OFPIPE (SEE SPECIFICATION #2)
VIMS RISER AT SLAB STEP
NTS
20
VM-4
SUB-BASE
VAPOR BARRIER
BASE COURSE
VAPOR BARRIER SEALED TOPIPE PER MANUFACTURERINSTRUCTIONS
SLOPE
PROVIDE PIPE SUPPORT TO PREVENTLOW POINT IN SOLID PIPE. MAINTAIN 1%SLOPE TOWARD SLOTTED SECTION OFPIPE (SEE SPECIFICATION #4)
3" SCH 40 PVC RISERDUCT PIPE (SEESPECIFICATION #4,#5 & #6)WALL (VARIES)
3" SCH 40 PVC90-DEGREE ELBOW
WALL (VARIES)
BASE COURSE
FLOOR CLEANOUT, ADJUSTABLE,4" DIA ZURN INDUSTRIESMODEL #CO2450-PV4 (OR ENGINEERAPPROVED EQUIVALENT)SEE DETAIL 21/VM-4
FLUSH WITHFINISHED FLOOR
PROVIDE PIPE SUPPORT TO PREVENT LOW POINTIN SOLID SECTION OF PIPE. MAINTAIN MINIMUM1% SLOPE TOWARD SLOTTED SECTIONS OF PIPE.2" SOLID SCH 40 PVC
22 VIMS MONITORING POINT THROUGH THICKENED SLAB WITH EXTENDED INTAKE PIPE
PIPE SLEEVE
NTSVM-4
PVC VENTED ENDCAP(SEE SPECIFICATION #7)
2" SCH 40 PVC 90-DEGREEELBOWVAPOR BARRIER PENETRATION SEALEDTO PIPE PER MANUFACTURERINSTRUCTIONS
WALL (VARIES)
SLOPE
VIMS AT RETAINING WALL ADJACENT TO OPEN AIR SPACE
NTS
28
VM-4
SUB-BASE
CONCRETEFLOOR SLAB
BASE COURSE
VAPOR BARRIER
WATERPROOFING ANDRIGID INSULATION
DRAIN
WALL (VARIES)
FINAL GRADE (VARIES)
OPEN-AIRSPACE
ENCLOSEDINTERIOR
VIMS TERMINATION AT CONCRETE WALL
NTS
27
VM-4
BASE COURSE
VAPOR BARRIER
VAPOR BARRIER SEALED TO CONCRETEPER MANUFACTURER INSTRUCTIONSSUB-BASE
OPEN-AIRSPACEENCLOSEDINTERIOR
T.O.C.
CONCRETEFLOOR SLAB
BASE COURSE(SEE SPECIFICATION #1)
SUB-BASE
VIMS PIPING THROUGH INTERIOR GRADE BEAM WITH RISER DUCT PIPING (TYP)
NTS
18A
VM-4
SOLID 3"SCH 40 PVC
VAPOR LINER SEALED TO PIPE PERMANUFACTURER INSTRUCTIONS
SINGLE OR DOUBLE STUDSEPARATION WALL
PROVIDE PIPE SUPPORT TO PREVENTLOW POINT IN SOLID PIPE. MAINTAIN 1%SLOPE TOWARD SLOTTED SECTION OFPIPE (SEE SPECIFICATION #2)
VAPOR LINER(SEE SPECIFICATION #1)
SOLID TO SLOTTED 3" SCH 40PVC PIPE TRANSITION (SLIPCOUPLING OR THREADED JOINT)
VAPOR LINER BENEATHGRADE BEAM
3" SCH 40 PVC RISER DUCT PIPE(SEE SPECIFICATION #3 & #4)
3" SCH 40 PVC TEE
FOAM PIPE SLEEVE (SEESPECIFICATION #11)
VIMS AT VERTICAL RISERS ADJACENT TO WALL
NTS
19
VM-4
BASE COURSE
SUB-BASE
3" SCH 40 PVC RISER DUCT PIPE(SEE SPECIFICATION #4, #5 & #6)WALL (VARIES)
3" SCH 40 PVC SLOTTED PIPE
VAPOR BARRIER SEALED TO PIPE PERMANUFACTURER INSTRUCTIONS
VAPOR BARRIERSUPPORT PIPE PER NC CODE
3" SCH 40 PVC 90DEGREE ELBOW NODA N TRYON EPL3027 N. TRYON STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 26008-22-060DATE: 11-21-23
H&H NO. EMB-005
VAPOR INTRUSION MITIGATIONPLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSIONMITIGATION SYSTEM
SECTION DETAILS#16 - #30
DEVELOPER:
EMBREY PARTNERS,LLC
1020 N.E. LOOP 410SUITE 700SAN ANTONIO, TEXAS
VM-4
PROFESSIONALAPPROVAL
REVISIONS
REV DATE DESCRIPTION
0 12/20/22 DEQ SUBMISSION
1 10/19/23 DEQ - REVISION 1
2 11/21/23 DEQ - REVISION 1 (IFC)
11/21/23
S:\AAA-Master Projects\Embrey (EMB)\EMB.005 3027 N Tryon Street Brownfields\VIMS\Figures\EMB-005-VIMS_R0.dwg
NODA N TRYON EPL3027 N. TRYON STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 26008-22-060DATE: 11-21-23
H&H NO. EMB-005
VAPOR INTRUSION MITIGATIONPLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSIONMITIGATION SYSTEM
SPECIFICATIONS
DEVELOPER:
EMBREY PARTNERS,LLC
1020 N.E. LOOP 410SUITE 700SAN ANTONIO, TEXAS
VM-5
PROFESSIONALAPPROVAL
VAPOR INTRUSION MITIGATION SYSTEM (VIMS)
SPECIFICATIONS
1.THIS VAPOR MITIGATION PLAN IS INTENDED TO BE USED FOR DIRECTION OF VIMS COMPONENT
INSTALLATION ONLY AND IS NOT INTENDED TO GUIDE CONSTRUCTION OF BUILDING STRUCTURAL
COMPONENTS. CONSTRUCTION CONTRACTOR SHALL VERIFY CONSISTENCY OF VIMS DETAILS WITH
APPLICABLE STRUCTURAL, ARCHITECTURAL, MECHANICAL, & PLUMBING PLANS AND RESOLVE ANY
INCONSISTENCIES PRIOR TO VIMS INSTALLATION. OBTAINING COUNTY OR LOCAL JURISDICTIONAL
BUILDING PERMITS RELATED TO THE VIMS SHALL BE THE RESPONSIBILITY OF THE GENERAL
CONTRACTOR (GC).
2.VIMS VAPOR BARRIER (LINER) SHALL BE VAPORBLOCK PLUS 20 (VBP20) 20-MIL VAPOR BARRIER
MANUFACTURED BY VIAFLEX, INC. (VIAFLEX). AS AN ALTERNATIVE, DRAGO WRAP 20-MIL VAPOR
INTRUSION BARRIER MANUFACTURED BY STEGO INDUSTRIES, LLC (STEGO) CAN BE USED, PENDING
APPROVAL BY THE VIMS DESIGN ENGINEER (ENGINEER).
THE VAPOR BARRIER SHALL BE INSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER
INSTALLATION INSTRUCTIONS TO CREATE A CONTINUOUS BARRIER BELOW MITIGATED AREAS, AND
ALONG RETAINING WALLS AND SLAB-ON-GRADE FOLDS WITHIN THE EXTENT OF VAPOR BARRIER
BOUNDARY. A MINIMUM 4-INCH THICK BASE COURSE CONSISTING OF CLEAN #57 STONE (WASHED
WITH NO FINES) SHALL BE INSTALLED BENEATH THE VIMS VAPOR BARRIER. A SIMILAR HIGH
PERMEABILITY STONE MAY BE USED, PENDING APPROVAL BY THE ENGINEER.
2.1.THE VAPOR BARRIER SHALL BE PROPERLY SEALED IN ACCORDANCE WITH THE MANUFACTURER
INSTALLATION INSTRUCTIONS AS SPECIFIED IN THESE DRAWINGS TO FOOTERS, SLAB STEPS,
RETAINING WALLS, PENETRATIONS (SUCH AS PIPE PENETRATIONS), OR OTHER BUILDING
COMPONENTS WITHIN THE VIMS EXTENTS. VAPOR BARRIER SHALL BE INSTALLED UNDER CMU
WALLS WHICH SUPPORT OCCUPIED ENCLOSED SPACES.
2.2.VAPOR BARRIER SHALL BE INSTALLED UNDER SLABS, ON WALLS, AND ALONG OTHER
STRUCTURAL COMPONENTS WHICH COME IN CONTACT WITH BOTH AN OCCUPIABLE
ENCLOSED SPACE AND SOIL. NOT ALL AREAS FOR THE VAPOR BARRIER MAY BE DEPICTED ON
THE DRAWINGS. THE GENERAL CONTRACTOR SHALL VERIFY ALL REQUIRED LOCATIONS FOR
VAPOR BARRIER LONG VERTICAL WALLS PRIOR TO CONSTRUCTION.
2.3.ALL CONCRETE BOX-OUTS, INCLUDING BUT NOT LIMITED TO SHOWER/BATH TUB DRAINS,
SHALL HAVE A CONTINUOUS VAPOR BARRIER INSTALLED BELOW.
2.4.VAPOR BARRIER SHALL EXTEND ALONG FOOTING EXTERIOR, IF POSSIBLE, AT LOCATIONS
WHERE EXTERIOR GRADE IS HIGHER THAN INTERIOR GRADE.
2.5.IN AREAS WITH EXPANSION BOARDS (E.G. ALONG COLUMNS), THE VAPOR BARRIER MUST BE
SEALED DIRECTLY TO THE CONCRETE WITH THE EXPANSION BOARD BE INSTALLED OVER THE
VAPOR BARRIER.
2.6.THE INTERFACE OF THE STEEL COLUMNS (IF PRESENT) AND THE CONCRETE SLAB SHALL BE
SEALED WITH A SELF-LEVELING POLYURETHANE SEALANT PER DIRECTION OF THE ENGINEER
OR ENGINEER'S DESIGNEE. SIMILAR SEALANT PRODUCTS MAY BE APPROVED BY THE
ENGINEER.
2.7.IF CONTRACTORS DAMAGE, REMOVE, OR MODIFY CONCRETE AND/OR VAPOR BARRIER AFTER
INSTALLATION, THEN REPAIRS TO THESE AREAS MUST BE CONDUCTED IN ACCORDANCE WITH
MANUFACTURER INSTRUCTIONS AND THE VAPOR BARRIER REPAIRS MUST BE INSPECTED BY
THE ENGINEER, OR DESIGNEE, PRIOR TO CONCRETE COMPLETION.
3.SUB-SLAB SLOTTED VAPOR COLLECTION PIPE SHALL BE SOCKET-WELD 3" SCH 40 PVC PIPE WITH
0.020" TO 0.060" SLOT WIDTH AND 1/8" SLOT SPACING. AN ALTERNATE SLOT PATTERN, OR SCH 40
PVC PERFORATED PIPE WITH 5/8" OR SMALLER DIAMETER PERFORATIONS, OR SOIL GAS
COLLECTOR MAT (1" X 12"), WITH SIMILAR AIR FLOW CHARACTERISTICS TO THE SLOTTED PIPE MAY
BE USED PENDING APPROVAL BY THE ENGINEER. IF CIRCULAR PIPE IS USED, A PVC TERMINATION
SCREEN (WALRICH CORPORATION #2202052, OR SIMILAR) SHOULD BE INSTALLED ON THE END OF
PIPE.
3.1.SLOTTED COLLECTION PIPING SHALL BE SET WITHIN THE MINIMUM 4” BASE COURSE LAYER,
WITH APPROXIMATELY 1” OF BASE COURSE MATERIAL BELOW THE PIPING.
3.2.SOIL GAS COLLECTOR MAT (IF INSTALLED) SHALL NOT BE USED THROUGH A CONCRETE
FOOTING. SCH 40 PVC PIPE (3" DIA) SHALL BE USED FOR ALL SUB-SLAB VENT PIPE CROSSINGS
THROUGH FOOTINGS. IF SOIL GAS COLLECTOR MAT IS USED, MANUFACTURER APPROVED
FITTINGS SHALL BE UTILIZED TO CONNECT THE SOIL GAS COLLECTOR MAT TO PVC PIPING FOR
CROSSINGS THROUGH FOOTINGS.
4.3" SCH 40 PVC RISER DUCT PIPING SHALL BE INSTALLED TO CONNECT EACH SLAB PENETRATION
LOCATION TO A ROOFTOP EXHAUST DISCHARGE POINT WITH STATIONARY VENTILATOR (SEE
SPECIFICATION #5). ABOVE-SLAB RISER DUCT PIPE THAT RUNS BETWEEN THE SLAB PENETRATION
AND THE ROOFTOP EXHAUST DISCHARGE SHALL BE INSTALLED PER APPLICABLE BUILDING CODE
AND AS SPECIFIED IN THE CONSTRUCTION DOCUMENTS AND DRAWINGS.
4.1.VERTICAL RISER PIPING SHALL BE AIRTIGHT, CONNECTED WITH PVC PRIMER AND GLUE.
4.2.VERTICAL RISER PIPING MUST BE INSTALLED PER 2018 NORTH CAROLINA STATE PLUMBING
CODE.
4.3.VIMS BELOW AND ABOVE GRADE SOLID PIPING SHALL NOT BE TRAPPED AND SHALL BE SLOPED
A MINIMUM OF 1/8 UNIT VERTICAL BY 12 UNITS HORIZONTAL (1% SLOPE) TO GRAVITY DRAIN.
BENDS, TURNS, AND ELBOWS IN VERTICAL RISER PIPES SHALL BE MINIMIZED FROM THE SLAB
TO THE ROOFTOP.
4.4.RISER PIPE SHALL CONTINUE THE SAME PIPE DIAMETER ON EACH LEVEL, UNLESS SHOWN IN
THE DETAILS AND/OR APPROVED BY THE DESIGN ENGINEER.
5.THE RISER DUCT PIPING SHALL EXTEND IN A VERTICAL ORIENTATION THROUGH THE BUILDING
ROOF AND TERMINATE A MINIMUM OF 2 FT ABOVE THE BUILDING ROOF LINE. EMPIRE MODEL
TV04SS VENTILATOR (OR ALTERNATE APPROVED BY THE ENGINEER) SHALL BE INSTALLED ON THE
EXHAUST DISCHARGE END OF EACH RISER DUCT PIPE. THE RISER DUCT PIPE AND THE VENTILATOR
SHALL BE SECURED TO THE PVC RISER IN A VERTICAL ORIENTATION.
5.1.EXHAUST DISCHARGE LOCATIONS SHALL BE A MINIMUM OF 10 FT FROM ANY OPERABLE
OPENING OR AIR INTAKE INTO THE BUILDING. NOTE THAT DISCHARGE LOCATIONS ON THE
ROOFTOP DEPICTED IN THE VAPOR MITIGATION PLAN MAY BE REPOSITIONED AS LONG AS THE
NEW POSITION MEETS THE REQUIREMENTS PRESENTED ABOVE, PENDING ENGINEER
APPROVAL.
5.3.AN ELECTRICAL JUNCTION BOX (120VAC REQUIRED) FOR OUTDOOR USE SHALL BE INSTALLED
NEAR THE PIPE DISCHARGE LOCATION ON THE ROOFTOP FOR POTENTIAL FUTURE
CONVERSION TO ELECTRIC FANS, IF REQUIRED. ALL WIRING AND ELECTRICAL SHALL BE
INSTALLED PER APPLICABLE BUILDING AND ELECTRICAL CODES.
5.3.THE LOCATION OF DISCHARGE SHALL REMAIN ACCESSIBLE FOR FUTURE MAINTENANCE
AND/OR UPFIT TO ELECTRIC FANS.
6.ABOVE-SLAB ACCESSIBLE RISER DUCT PIPING SHALL BE PERMANENTLY IDENTIFIED BY MEANS OF A
TAG OR STENCIL AT A MINIMUM OF ONCE EVERY 10-LINEAR FT WITH "VAPOR MITIGATION:
CONTACT MAINTENANCE". LABELS SHALL ALSO BE FIXED NEAR THE VENTILATORS IN AN
ACCESSIBLE LOCATION ON THE ROOFTOP.
7.MONITORING POINTS SHALL CONSIST OF 2-INCH DIAMETER SCH 40 PVC PIPE WITH A 90-DEGREE
ELBOW TO FORM AN “L” SHAPE. A MINIMUM OF 6” SECTION OF PIPE AND MAXIMUM 6 FT
SECTION OF PIPE, OR OTHERWISE APPROVED BY THE ENGINEER, SHALL BE SET WITHIN THE BASE
COURSE LAYER WITH AN OPEN ENDED PIPE OR PIPE PROTECTION SCREEN AT THE TERMINATION.
THE PIPE TERMINATION SHALL BE ENCASED WITHIN THE BASE COURSE LAYER.
7.1.THE HORIZONTAL PIPING SHALL LEVEL OR SLOPED TO GRAVITY DRAIN TOWARDS THE PIPE
TERMINATION AND PREVENT MOISTURE FROM COLLECTING AT THE 90-DEGREE ELBOW.
7.2.THE MONITORING POINT INTAKE SHALL BE PLACED A MINIMUM OF 3-FT FROM EXTERIOR
FOOTERS, OR AS OTHERWISE APPROVED BY THE ENGINEER.
7.3.MONITORING POINTS LOCATED IN STAIRWELLS ARE INTENDED TO BE INSTALLED BELOW
STAIRWELL LANDINGS AND MAY BE RE-POSITIONED TO PROVIDE SUITABLE ACCESS TO THE
POINT PER APPROVAL OF THE ENGINEER.
7.4.THE END OF THE PIPE SHALL CONTAIN A PVC TERMINATION SCREEN OR AN OPEN PIPE.
7.5.A 4-INCH DIAMETER ADJUSTABLE FLOOR CLEAN-OUT (ZURN INDUSTRIES MODEL
#CO2450-PV4, OR EQUIVALENT) SHALL BE INSTALLED AND SET FLUSH WITH THE FINISHED
CONCRETE SURFACE, OR THE MONITORING POINT SHALL BE PLACED BEHIND A WALL ACCESS
PANEL PER THE DETAILS.
7.7.TEMPORARY MONITORING POINTS (IF PRESENT) MAY BE ABANDONED USING AIR-TIGHT
SEALANT AND CONCRETE AFTER TESTING PER APPROVAL OF THE ENGINEER.
8.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS SHALL USE "LOW OR NO VOC" PRODUCTS
AND MATERIALS, WHEN POSSIBLE, AND SHALL NOT USE PRODUCTS CONTAINING THE COMPOUNDS
TETRACHLOROETHENE (PCE) OR TRICHLOROETHENE (TCE). THE CONSTRUCTION CONTRACTOR AND
SUB-CONTRACTORS SHALL PROVIDE SAFETY DATA SHEETS (SDS) TO THE ENGINEER FOR THE
PRODUCTS AND MATERIALS USED FOR CONSTRUCTION OF THE VIMS.
9.IN INSTANCES WHERE A THICKENED FOOTING OR RETAINING WALL IS NOT SPECIFIED AT THE
EXTENT OF VAPOR BARRIER, A THICKENED SLAB OR FOOTER SHALL BE INSTALLED BY THE
CONTRACTOR THAT INCLUDES A SOIL SUBBASE TO CREATE A CUT-OFF FOOTER AT THE EXTENT OF
VAPOR BARRIER. THE ADDITIONAL THICKENED SLAB OR FOOTER SHALL NOT ALLOW FOR
CONTINUOUS GRAVEL BETWEEN THE VIMS EXTENTS AND EXTERIOR NON-MITIGATED AREAS.
10.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS SHALL AVOID THE USE OF TEMPORARY
FORM BOARDS THAT PENETRATE THE VAPOR BARRIER WHERE POSSIBLE. IF TEMPORARY FORM
BOARDS ARE USED, THE SIZE AND NUMBER OF PENETRATIONS THROUGH THE VAPOR BARRIER
SHALL BE LIMITED AND SMALL DIAMETER SOLID STAKES (I.E. METAL STAKES) SHALL BE USED. IN
ALL CASES, AS FORM BOARDS ARE REMOVED, THE CONTRACTOR OR SUB-CONTRACTORS SHALL
RESEAL ALL PENETRATIONS IN ACCORDANCE WITH VAPOR BARRIER MANUFACTURER INSTALLATION
INSTRUCTIONS.
10.1.HOLLOW FORMS OR CONDUITS THAT CONNECT THE SUB-SLAB ANNULAR SPACE TO ENCLOSED
ABOVE SLAB SPACES SHALL NOT BE PERMITTED.
10.2.AREAS OF UTILITY BANKS (e.g. LOCATION OF THREE OR MORE ADJACENT UTILITIES THROUGH
THE SLAB) SHALL BE SEALED TO CREATE AN AIR-TIGHT BARRIER AROUND THE UTILITY
CONDUITS USING VIAFLEX POUR N'SEAL OR DRAGO SEALANT PRIOR TO THE SLAB POUR.
OTHER SEALANT METHODS IF USED SHALL BE APPROVED BY THE ENGINEER PRIOR TO
APPLICATION.
11.INSPECTIONS: THE INSTALLATION CONTRACTOR(S) SHALL NOT COVER ANY PORTIONS OF THE VIMS
WITHOUT INSPECTION. INSPECTIONS OF EACH COMPONENT OF THE VIMS SHALL BE CONDUCTED
BY THE ENGINEER, OR ENGINEER'S DESIGNEE, TO CONFIRM VIMS COMPONENTS ARE INSTALLED
PER THE APPROVED DESIGN. THE REQUIRED INSPECTION COMPONENTS INCLUDE: (1) INSPECTION
OF SUB-SLAB PIPING LAYOUT, (2) GRAVEL PLACEMENT, AND (3) MONITORING POINT PLACEMENT
PRIOR TO INSTALLING VAPOR BARRIER; (4) INSPECTION OF VAPOR BARRIER PRIOR TO POURING
CONCRETE (INCLUDING ELEVATOR PITS AND RETAINING WALLS); (5) INSPECTION OF ABOVE-GRADE
PIPING LAYOUT; (6) INSPECTION OF VENTILATOR AND RISER DUCT PIPE CONNECTIONS; AND (7)
INSPECTION OF VAPOR BARRIER ALONG VERTICAL WALLS AND ELEVATOR PITS. INSPECTIONS WILL
BE COMBINED WHEN POSSIBLE DEPENDING ON THE CONSTRUCTION SEQUENCE/SCHEDULE.
11.1.THE CONSTRUCTION CONTRACTOR(S) SHALL COORDINATE WITH THE ENGINEER TO PERFORM
THE REQUIRED INSPECTIONS. A MINIMUM 48-HOUR (TWO-BUSINESS DAY) NOTICE SHALL BE
GIVEN TO THE ENGINEER OR DESIGNEE PRIOR TO THE REQUIRED INSPECTION(S) WITH
SUBSEQUENT NOTIFICATION PROVIDED TO DEQ. THE CONTRACTORS SHALL NOT COVER
COMPONENTS OF THE VIMS WITHOUT INSPECTION AND ENGINEER'S, OR ENGINEER'S
DESIGNEE, APPROVAL.
11.2.INSPECTIONS NOTED ABOVE ARE PERFORMED FOR DEQ PURPOSES. ANY BUILDING
INSPECTIONS REQUIRED FOR COUNTY OR LOCAL JURISDICTIONAL BUILDING PERMITS ARE
SEPARATE FROM THE DEQ INSPECTIONS AND ARE THE RESPONSIBILITY OF THE GC OR
INSTALLERS TO COORDINATE.
12.PIPE SLEEVES, IF USED, SHALL BE PROPERLY SEALED TO PREVENT A PREFERENTIAL AIR PATHWAY
FROM BELOW THE SLAB INTO THE BUILDING. REFER TO TO STRUCTURAL DRAWINGS FOR FOOTING
DETAILS ADDRESSING VIMS PIPING.
13.WATERPROOFING INCLUDING MEMBRANES AND DRAINAGE MATS SHALL BE INSTALLED IN
ACCORDANCE WITH THE ARCHITECTURAL AND STRUCTURAL PLANS. IF WATERPROOFING IS
PRESENT, THE VAPOR BARRIER SHALL BE INSTALLED BETWEEN WATERPROOFING AND ANY
DRAINAGE FEATURES INCLUDING DRAINAGE MATS. THE INSTALLER SHALL CONFIRM THAT THE
WATERPROOFING PRODUCTS AND SEALANTS USED DURING CONSTRUCTION ARE COMPATIBLE
WITH THE SPECIFIED VAPOR BARRIER AND THAT WATERPROOFING WARRANTIES (IF PRESENT) ARE
NOT IMPACTED BY THE PROPOSED WATERPROOFING AND VAPOR BARRIER CONSTRUCTION
SEQUENCE.
REVISIONS
REV DATE DESCRIPTION
0 12/20/22 DEQ SUBMISSION
1 10/19/23 DEQ - REVISION 1
2 11/21/23 DEQ - REVISION 1 (IFC)
11/21/23
S:\AAA-Master Projects\Embrey (EMB)\EMB.005 3027 N Tryon Street Brownfields\VIMS\Figures\EMB-005-VIMS_R0.dwg

Attachment D-1

VaporBlock 20 (VBP-20) Product Specification Sheets & Installation Instructions
ACCESSORIES
SEAMING TAPES & OTHER ACCESSORIES FOR PLASTIC SHEETING
Butyl Seal Tape (TP2BR / TP6BR)
Butyl Seal is a double-sided reinforced aggressive black butyl rubber tape used to join panels of polyethylene and polypropylene together by overlapping the edges and applying Butyl Seal in between. It is also used to adhere to concrete walls and footings when properly prepared. Butyl Seal is non-hardening and flexible. Available in 2” x 50’ and 6” x 50’ rolls.
R25B Tape (R25B)
R25B Tape is a single-sided aggressive synthetic elastomeric adhesive that bonds instantly to properly prepared polyethylene and polypropylene. The black polymer backing and adhesive is specially formulated to provide years of performance even in direct sunlight. A poly release liner provides for ease of installation. Available in 4” x 100’ roll.
ACCESSORY TAPES AND EPOXY
VaporBond™ Tape (TVB4)
VaporBond™ Tape is a white single-sided tape that combines a heavy-duty, weather-resistant polyethylene backing with an aggressive rubber adhesive. VaporBond™ Tape offers excellent seaming capabilities for our materials with an “Easy Tear” feature to reduce installation time. TVB4 has a WVTR of 0.18 perms per ASTM D3833. Typical applications include vapor retarders, covers and liners. Available in 4” x 210’ roll.
VaporSeal™ Tape (TVSP4/TVSP12)
VaporSeal™ Tape is a patent pending single-sided 7-layer gas barrier tape with a release liner for ease of installation. The backing contains a layer of highly impermeable EVOH designed to block migration of radon, methane, and VOC’s. An aggressive acrylic adhesive provides outstanding adhesion to polyethylene over a wide temperature range. Typical uses include joining, repairing and sealing gas/moisture barriers. Available in 4” x 160’ and 12” x 50’ rolls.
VaporBoot™ Tape (TBOOT)
VaporBoot™ Tape is a single-sided elastomeric butyl tape used to complete pipe boot installations (sealing the boot to the pipe). The 100% stretchable butyl adhesive features excellent adhesion values and 3-D stretching that can be easily molded to multiple surfaces without any creases and folds. Available in 2” x 16.4’ roll.
ADDITIONAL ACCESSORIES
VaporBoot™ System (VBOOT)
The VaporBoot™ System is designed to assist in securing pipe and other penetrations that run vertically through the vapor retarder material. The VaporBoot™ System offers a quick solution and is delivered to the jobsite in a complete package. VaporBoots are produced from high performance VaporBlock® material.
Package Contents: 25 - VaporBoots (18” x 18”, w/precut center marker) 1 Roll VaporBoot (TBOOT)Tape 2‘x16.4‘1 roll of Vapor Bond Tape (TVB4) 4‘x210
VaporBoot™ Plus Preformed Pipe Boots (VBPBT)
VaporBoot™ Plus Preformed Pipe Boots are produced from heavy 40 mil co-extruded polyethylene and barrier resins for excellent strength and durability. The preformed boots are stepped to fit 1” to 4” wide pipe penetrations. VaporBoot™ Plus Preformed Pipe Boots are available in quantities of 12 per box.
From tie-down fasteners to field seaming tape, Viaflex has the accessories you need to maximize your film’s versatility and minimize installation time on the job.
POUR-N-SEAL™ (PNS1G)
POUR-N-SEAL™ is a gray two part epoxy used to seal around multi-pipe penetrations in areas where pipe boots are not practical, when installing underslab barriers. The POUR-N-SEAL™ system installation guide references a 1” x 25 lineal feet adhesive-backed foam to form a dam around multi-pipe penetrations to contain POUR-N-SEAL™ during the setting process. The 1” x 25 ft. adhesive-backed foam is sold seperately as FOAM25.
© 2022 VIAFLEX, INC. All rights reserved.
ACCESSORIES
Tie-Down Buttons (BUTI) & Tarp Grabbers (BUTEZ)
Tie-Down Buttons and Tarp Grabbers help keep plastic sheeting securely in place. Tie-Down Buttons are designed to eliminate traditional grommets in plastic sheeting up to 10 mil thick and are reusable plastic fittings that are easy to install in any position. Tarp Grabbers are up to 4 times stronger than a brass grommet and are typically used in heavier plastic sheeting from 10 mil to 30 mil thick. Great for equipment covers, large storage covers and truck tarps.
ADDITIONAL ACCESSORIES (CONTINUED)
Dura♦Skrim® Reinforced Sandbags
Dura♦Skrim® reinforced sandbags are used to secure large covers and liners to prevent wind damage. Sandbags are produced with strong Dura♦Skrim® 8 & 12 mil reinforced polyethylene. These 15” wide x 24” long bags are designed to hold 35 lbs. Sandbags are also available in other VIAFLEX reinforced materials with minimum order requirements. 11.8” Cable Ties are also available.
Dura-Clip™ (CLIP11)
VIAFLEX Welding Rod
These full size clips are 11” long and fit most commercial scaffolding. Dura-Clip™ will securely fasten your poly sheeting to scaffolding, reducing wind whip and increasing the life of your enclosure. The Dura-Clip™ is normally placed about every 3’ onto the enclosure.
VIAFLEX Welding Rod is used for field seaming, repairs and detail work, such as installing pipe boots. Packaged in 25 lb spools, it is available in 4mm and 5mm sizes to fit most brands of extrusion guns. VIAFLEX Welding Rod is made from a thermally UV stabilized LLDPE resin and is available in both black and white to correspond with the color of geomembranes being utilized.
SEAMING TAPES & OTHER ACCESSORIES FOR PLASTIC SHEETING
TAPE ACCESSORY PROPERTIES
PROPERTIES VaporBond Tape(TVB4)VaporSeal Tape(TVSP4 / TVSP12)VaporBoot Tape(TBOOT)R25B Tape(R25B)Butyl Seal Tape(TP2BR / TP6BR)
Backing 6.7 mil Polyethylene 7 mil EVOH/LLDPE 30 mil EPDM 8 mil Multi-Polymer N/A
Adhesive 3.3 mil Rubber Based
Pressure-Sensitive
2 mil Acrylic Adhesive
Pressure-Sensitive
20 mil
Butyl Rubber
17 mil
Synthetic Elastomeric
40 mil
Butyl Rubber
Color White Silver Black Black Black
Type Single Sided Single Sided Single Sided Single Sided Double Sided
Size 4” x 210’4” x 160’ / 12” x 50’2” x 16.4’4” x 100’2” x 50’ / 6” x 50’
Rolls per Case 12 12 / 4 64 6 16 / 4
Weight per Case 45 lbs 50 lbs / 18 lbs 45 lbs 33 lbs 47 lbs / 20 lbs
Adhesion Values 35 oz. / in. (to steel)80 oz. / in. (to steel)145 oz. / in. (to steel)144 oz. / in. (to steel)88 oz. / in. (to steel)
Perms 0.081 g/(24h*100 in²)0.014 g/(24h*100 in²)N/A <0.005 g/(24h*100 in²)0.82 g/(24h*100 in²)
Service Temp.-40° F to +180° F -40° F to +190° F +14° F to +122° F +20° F to +180° F 0° F to +170° F
Min.Application Temp.50° F 50° F 14° F 35° F 35° F
Ideal StorageTemp. / Humidity 70° F w/ 40-50 %60°-80° F w/ 40-60 %70° F w/ 70 %70° F w/ 40-50 %70° F w/ 40-50 %
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. VIAFLEX 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.viaflex.com
27-0016 05/23
[e-mail] www.viaflex.comScan QR Code to download technical data sheets.
VIAFLEX, INC.
821 W Algonquin Street Sioux Falls, SD 57104 Ph: [phone] • TF: [phone]© 2022 VIAFLEX, INC. All rights reserved.
VViiaafflleexx,, IInncc..821 W Algonquin Street Sioux Falls, SD 57104Ph: [phone] • TF: [phone] [e-mail] www.viaflex.com
012116 EFD 1319
HIGH-STRENGTH EPOXY BONDING ADHESIVE
POUR-N-SEAL™
PRODUCT NAMEPOUR-N-SEAL™ (P/N: PNS1G)
MANUFACTURERViaflex, Inc.
821 W. Algonquin Street
Sioux Falls, SD 57104
PRODUCT DESCRIPTION
POUR-N-SEAL™ is a gray two-part medium viscosity high strength epoxy used to seal around multiple pipe penetrations in tight areas where pipe boots are not practical,
when installing VaporBlock® moisture and
gas barriers.
TECHNICAL DATA
Applicable Standards:• ASTM (American Society for Testingand Materials)• ASTM C881 Standard Specification for
Epoxy-Resin-Base Bonding Systems for
Concrete• ASTM D695 Standard Test Method forCompressive Properties of Rigid Plastics• ASTM D638 Standard Test Method for
Tensile Properties of Plastics
• ASTM C882 Standard Test method forBond Strength of Epoxy-Resin SystemsUsed with Concrete by Slant Shear• ASTM Standard Test Method for
Deflection Temperature of Plastics Under
Flexural Load in the Edgewise Position• ASTM D570 Standard Test Method forWater Absorption of Plastics
MATERIAL PREPARATIONStore material overnight to precondition at a temperature between 70° F to 80° F prior to use.
INSTALLATION
1. POUR-N-SEAL™ is used to seal
moisture and gas barriers to multiple pipepenetrations in situations where pipe bootsare not able to be installed due to the tightconcentration of the pipe penetrations.
2. Install the vapor/gas barrier as close as
possible to the penetrations by making asmall opening. Effort should be given tominimize large gaps in the barrier next tothe penetrations, this will also reduce the
amount of POUR-N-SEAL™ necessary to
complete an acceptable seal.3. To help concentrate the sealant aroundthe pipe penetration, a dam can be formedaround the pipe grouping with an adhesive
backed weather stripping foam. One gallon
covers 80 sq. ft. at a thickness of 20 mils.
4.Only mix the amount of material that can be used within the pot life of the epoxy,
approximately 36 minutes at 73° F. Premix
each component prior to combining. Pour “A” and “B” components together and thoroughly mix using a low speed drill with a mixing paddle. Scrape the sides and bottom
to assure a consistent blend.5.Once mixed, pour contents around the pipe penetrations, if needed a brush or flat wooden stick can be used to direct the sealant completely around all penetrations
and overlap the moisture/gas barrier to form
a continuous seal. Avoid Contact with skin (see SDS for complete safety precautions). Immediately dispose of any remaining mixed POUR-N-SEAL™ epoxy left in the container
to avoid excessive heat buildup.6.Depending upon the temperature. POUR-N-SEAL should be tack free in approximately 5 hours.
STORAGE/SHELF LIFEStore in dry environment between 40º F and 80º F (4º C-27º C). Do not allow product
to freeze. Shelf Life: 12 months from date
of manufacture in unopened containers properly stored. Protect from moisture.
AVAILABILITYPlease call your local construction supply distributor for availability of POUR-N-SEAL™
or call our toll free number at 800-635-3456.
SAFETY
POUR-N-SEAL™ “B” component contains amines and may cause severe burns upon skin contact for any length of time. Use OSHA-approved personal protective
equipment (PPE), including safety glasses,
gloves and confined space equipment/
TEST DATA
Compressive Strength ASTM D-695 11,070
Compressive Modulus of Elasticity ASTM D-695 370,000
Tensile Strength ASTM D-638 3,480
Tensile Modulus of Elasticity ASTM D-638 429,000
Tensile Elongation ASTM D-638 1.2 %
Bond Strength (dry cure) - 2 day ASTM C-882 3,390
Bond Strength (dry cure) - 14 day ASTM C-882 3,600
Shore Hardness D scale 86 D
Heat Deflection ASTM D-648 120° F (49° C)
Water Absorption ASTM D-570 < 1 %
procedures if applicable. Avoid skin contact;
do not ingest. See SDS for complete safety precautions. For professional use only.
WARRANTYViaflex warrants its products to be free from manufacturing defects and that products
meet the published characteristics when
tested in accordance with ASTM standards. No other warranties by Viaflex are expressed or implied, including no warranty of
merchantability or fitness for a particular
purpose. Viaflex will not be liable for damages of any sort resulting from any claimed breach of warranty. Viaflex's liability under this warranty is limited to replacement
of material or refund of sales price of the
material. There are no warranties on any product that has exceeded the “shelf life” or “expiration date” printed on the package label.
27-0202 02/23

Attachment D-2

Drago Wrap Product Specification Sheets & Installation Instructions
DRAGO® WRAP
VAPOR INTRUSION BARRIERINSTALLATION INSTRUCTIONS
LIFE O F THE BUIL
DIN
G• WARRAN T Y •STEGO ENGINEERED PERFORMANCE
LIFE OF THE BUILDING™ PROTECTION
Additional Drago Wrap installation resources and
videos are available on our website at:
stegoindustries.com/resources
CONTENTS
SECTION 1 Drago Wrap and Drago Accessories .................................3
SECTION 2 Creating a Monolithic Membrane ....................................4
SECTION 3 Where to Terminate the Drago Wrap ................................5
SECTION 4 Sealing Drago Wrap at Terminating Edges .......................6,7
SECTION 5 Sealing Damaged Areas ...............................................8
SECTION 6 Sealing Single Pipe Penetrations .....................................9
SECTION 7 Sealing Multiple Pipe Penetrations .................................10
SECTION 8 Avoid Punctures with Beast Concrete Accessories ...............11
2
The installation recommendations set forth in these instructions are generally
based on ASTM E1643 and specific applications of Drago products. Each section
provides explanations and options for the varying conditions.STE G O I NSTALLATIO
N
• SUPPO R T •Stego Installation Support - A Free Service
When you choose Stego® Barrier Solutions and products, you gain access to a large nationwide
network of full-time technical sales representatives providing unmatched local support and service.
If you ever have a question or concern regarding the following installation scenarios please contact
us and take advantage of our free Stego Installation Support.
For compliance with LARR regulations, some additional installation methods are required. For more information, visit:
stegoindustries.com/drago-larr-specific-installation-instructions
Drago Wrap
SECTION 1 Drago Wrap Vapor Intrusion Barrier Installation Instructions 3
DragoSeal® Tape
Combines Drago Wrap technol-
ogy with a powerful adhesive for
a barrier solution to seal seams,
patches, and other details, de-fending against vapor intrusion.
DragoTack® Tape
A solvent-resistant, double-sided
adhesive strip used to bond and seal Drago Wrap to concrete,
masonry, wood, metal, and other
surfaces.
Drago® Mastic
A polymer-modified anionic
asphalt emulsion, designed to be used with Drago Wrap, for
sealing utility, pipe penetra-
tions, and terminating edges.
Drago® Sealant
A two-component, high-
performance epoxy, designed to be used with Drago Wrap
for sealing utility and pipe
penetrations.
At Stego, we know every project has its own unique challenges. To make a Drago Wrap installation easy and flexible, we
offer an extensive line of accessory items that gives you options to create a monolithic membrane between all interior
intrusion pathways and vapor sources below the slab as well as at the slab perimeter. Consult the project architect,
owner's representative, and design engineer of record before proceeding with any of these options.
Drago® Wrap Vapor Intrusion Barrier is a multi-layered plastic
extrusion that combines uniquely designed materials with only high
grade, prime, virgin resins. This patent pending barrier technology
provides high performance and longevity, allowing for the redevelop-
ment of contaminated sites, creating a healthy built environment.
Drago Accessories
Drago® Sealant Form
A low-density, cross-linked, closed-cell polyethylene
foam designed to be used
as a detailing piece with
Drago Sealant.
Creating a Monolithic Membrane
SECTION 2 Drago Wrap Vapor Intrusion Barrier Installation Instructions 4
The key to an effective Drago Wrap installation is to create a monolithic layer of protection between the building foundation
and vapor sources below. While Drago Wrap installation instructions are generally based on ASTM E1643 - Standard
Practice for Selection, Design, Installation, and Inspection of Water Vapor Retarders Used in Contact with Earth or Granular
Fill Under Concrete Slabs, these instructions are meant to be used as a guide, and do not take into account specific job site
situations. Consult local building codes and regulations along with the building owner or owner’s representative before
proceeding.
ASTM E1643 discusses the selection of the vapor retarder and preparation of the subbase to minimize potential damage during
installation and concrete placement.
ASTM E1643, Section 5.3.4.1 - Select a vapor retarder material capable of withstanding potential construction site damage.
ASTM E1643, Section 5.3.5.1 - Select vapor retarder material capable of withstanding tear or puncture damage due to the
type, gradation, and texture of the base material to be installed below the material. Prepare base material to minimize risk
of puncture, for example, by rolling or compacting.
ASTM E1643, Section 6.1 - Level and compact base material.
ASTM E1643 then states to create a monolithic membrane to protect the slab from adjacent moisture sources.
ASTM E1643, Section 6.4 - . . . create a monolithic membrane between the surface of the slab and vapor sources below
the slab as well as at the slab perimeter.
ASTM E1643, Section 6.5 - Lap joints as instructed by the manufacturer and seal laps in accordance with the manufacturer’s recommendations.
Unroll Drago Wrap over the area where the slab is to be placed.
Note: Grey color side of membrane is face-down, copper color side is face-up.
Unless otherwise indicated by the design professional(s) of record, unfold Drago Wrap to completely cover the placement area.
All joints/seams should be over-lapped a minimum of 12 inches.
1 2 3
Ensure Drago Wrap is clean anddry when applying DragoSeal Tape.
Tip: Use a cloth or other means to remove dust, debris, and excess moisture from Drago Wrap prior to applying DragoSeal Tape.
Seal the seams with DragoSeal Tape.
Note: Remove the release liner of DragoSeal Tape prior to application. After applying DragoSeal Tape, use consistent, firm pressure along the 4” width of DragoSeal Tape to ensure continuous adhesion. Optional ~4” steel roller is ideal.
4 5
Drago Wrap can be installed over an aggregate, sand, or tamped earth base. It is not typically necessary to have a
cushion layer or sand base, as Drago Wrap is tough enough to withstand rugged construction environments. Con-
sult the design team for project-specific recommendations.
OPTIONAL SEALING METHOD:Hot air wedge welding equipment is ideal for heat welding seams of Drago Wrap.
Where to Terminatethe Drago Wrap
SECTION 3 Drago Wrap Vapor Intrusion Barrier Installation Instructions 5
Always consult the project design team for where to terminate the vapor barrier to strike a balance between the
location of the vapor barrier on or around foundation constructions and any structural concerns before proceeding.
ASTM E1643 provides direction on where to terminate the vapor barrier as follows:
ASTM E1643, Section 6.4 - Extend vapor retarder over footings and seal to foundation wall, grade beam,
or slab at an elevation consistent with the top of the slab or terminate at impediments such as waterstops or dowels...
ASTM E1643, Section 6.6 - Extend vapor retarder over the tops of pile caps and grade beams to a distance acceptable to
the structural engineer.
In accordance with ASTM E1643, terminate the Drago Wrap as follows:
Note: Turn Drago Wrap up foundation walls or forms. Ensure Drago Wrap is flush against the corner to avoid tenting.
If the location of vapor barrier termination has not been clearly addressed in the construction documents, then clarification
should be requested from the project design team. Should no direction be given, Stego recommends the project team follow,
at minimum, the guidelines of ASTM E1643.
Regardless of where the vapor barrier is determined to be terminated, ASTM E1643 requires the terminating edges to be
sealed.
At Impediments; OR
Note: Impediments may include rebar, dowels, water stops, etc. and may be located at interior grade beams in addition to perimeter walls and footings.
At a location of termination designated by the project design team.
Note: The distance to which the vapor barrier is extended adjacent to, onto, or completely over a
footing or grade beam should be determined by the project design team.
At an elevation (height) consis-tent with the top of the slab;
Using Drago Mastic
SECTION 4 Drago Wrap Vapor Intrusion Barrier Installation Instructions 6
IMPORTANT: Make sure the area of adhesion is free of dust, dirt, debris, moisture, and frost to allow maximum adhesion.
Apply Drago Mastic to the foundation
wall at the anticipated edge of the
subsequently applied Drago Wrap at
the height of the slab or impediments.
Press Drago Wrap firmly against the
applied Drago Mastic on the founda-
tion wall.
1 2
Sealing the Terminating Edges of Drago Wrap Up Foundation Walls & Vertical SurfacesUsing DragoTack Tape or DragoSeal Tape
DragoTack Tape or DragoSeal Tape can be used to seal Drago Wrap to foundation walls, grade beams or other adjacent
concrete constructions.
IMPORTANT: Make sure the area of adhesion is free of dust, dirt, debris, moisture, and frost to allow maximum adhesion.
Remove the release liner on one side of DragoTack Tape and adhere to foundation wall at the height of the slab or at impediments.
When ready to apply Drago Wrap, remove the exposed release liner from DragoTack Tape.
Press Drago Wrap firmly against DragoTack Tape to secure.
1 2
3
MECHANICAL SEAL OPTION:If a mechanical seal is needed, fasten a termination bar over the top of the Drago Wrap inline with the DragoTack Tape (as shown in image) or DragoSeal Tape.
Fasten a termination bar over the top of the Drago Wrap inline with the Drago Mastic.
Extend Drago Wrap up the vertical surface, likely to the height of the slab.
Note: See Where to Terminate the Drago Wrap, page 5.
Apply DragoSeal Tape on the perimeter edge so that 2” is on the Drago Wrap and 2” is on the wall/vertical surface. Press firmly to secure.
1 2
OR
DragoSeal Tape
DragoTack Tape
3
Sealing the Terminating Edges of Drago Wrap on a Horizontal Plane
7
Onto a Perimeter Footing at Impedi-ments: Seal Drago Wrap to concrete with Drago Mastic.
Onto Interior Grade Beams at Imped-
iments: Seal Drago Wrap to concrete
with Drago Mastic.
At a Location Designated by the
Design Team: Seal Drago Wrap to
concrete with Drago Mastic.
Using Drago Mastic
Always consult the project design team for where to terminate the vapor barrier to strike a balance between the location
of the vapor barrier on or around foundation constructions and any structural concerns before proceeding.
After the location of where to terminate the vapor barrier has been determined, seal Drago Wrap along all terminating edges as indicated by the project team.
Onto a Perimeter Footing at Impediments: Seal Drago Wrap to concrete with DragoTack Tape or DragoSeal Tape.
Onto Interior Grade Beams at Impedi-ments: Seal Drago Wrap to concrete with DragoTack Tape or DragoSeal Tape.
At a Location Designated by the Design Team: Seal Drago Wrap to concrete with DragoTack Tape or DragoSeal Tape.
Using DragoTack Tape or DragoSeal Tape
See “ Where to Terminate the Vapor Barrier” on page 5 prior to choosing your terminating edge sealing accessory.
MECHANICAL SEAL OPTION:If a mechanical seal is needed, fasten a termination bar over the top of the Drago Wrap inline with the DragoTack Tape (as shown in image); or fasten a termination bar over the 2” of DragoSeal Tape that is on top of Drago Wrap (not shown).
MECHANICAL SEAL OPTION:
If a mechanical seal is needed,
fasten a termination bar over
the top of the Drago Wrap inline
with the Drago Mastic.
SECTION 4 Drago Wrap Vapor Intrusion Barrier Installation Instructions
DragoSeal TapeDragoTack Tape
OR OR
DragoSeal TapeDragoTack Tape(under Drago Wrap)DragoTack Tape DragoSeal Tape
OR
SECTION 5 Drago Wrap Vapor Intrusion Barrier Installation Instructions 8
Sealing Damaged Areas:Small Hole or Slice
In the event that Drago Wrap is damaged during or after installation, repairs must be made. For smaller holes or
slices in Drago Wrap, DragoSeal Tape can be used as noted below.
Small hole or slice in Drago Wrap.Clean area of adhesion.Center DragoSeal Tape over small hole or slice in Drago Wrap. Apply pressure to DragoSeal Tape after application.
1 2 3
Larger Hole
In the event that Drago Wrap is damaged during or after installation, repairs must be made. For larger holes, cut a piece
of Drago Wrap to a size and shape that covers any damage by a minimum overlap of 6” in all directions. Clean all adhesion
areas of dust, dirt, moisture, and frost. Tape down all edges using DragoSeal Tape.

Occasionally there are larger holes in the vapor barrier that require a patch.Measure and cut a piece of Drago Wrap to cover damaged area 6” in all
directions. Clean area of adhesion.
Seal the patch with DragoSeal Tape.
1 32
SECTION 6 Drago Wrap Vapor Intrusion Barrier Installation Instructions 9
Sealing Single Pipe Penetration:Minimal Void Space
All penetrations must be sealed. All pipe, ducting, rebar, wire penetrations and block outs should be sealed using Drago
Wrap and either DragoSeal Tape, Drago Mastic, or Drago Sealant and Drago Sealant Form. If penetrations are encased in
other materials, such as expansive materials like foam, unless otherwise specified, Drago Wrap should be sealed directly
to the underlying penetration.
Install Drago Wrap around pipe pen-etrations by slitting/cutting material as needed. Try to minimize the void space created.
Pull material over and flatten. Clean area of adhesion where the Drago accessory will be applied.
If Drago Wrap is close to pipe and void space is minimized then seal around pipe penetration with either DragoSeal Tape (as shown), Drago Mastic or Drago Sealant and Drago Sealant Form.
1 2 3
Larger Void Space Requires Detail Patch
To minimize void space around a larger penetration, a detail patch may be required.
Cut a detail patch to a size and shape that creates a 6” overlap on all edges around the void space at the base of the pipe.
Cut an “X” the size of the pipe diam-eter in the center of the detail patch and slide tightly over pipe.
Seal all sides of the detail patch with DragoSeal Tape.
1 2 3
Seal around the base of the pipe using DragoSeal Tape.Seal around the base of the pipe with Drago Mastic.
Note: apply using disposable glove, paint brush, or similar.
4a 4b
OR
Install Drago Sealant Form continu-ously to Drago Wrap and around the entire perimeter of the group of penetrations and at least 1 inch be-yond the terminating edge of Drago Wrap.
3b
Pour Drago Sealant inside of Drago Sealant Form to create a seal around the penetrations.
Drago Sealant Form Drago Sealant
Sealing Multiple Pipe Penetrations:Using Drago Mastic or Using Drago Sealant and Drago Sealant Form
Multiple pipe penetrations in close proximity and very small pipes may be most efficiently sealed using Drago Wrap and
Drago Mastic, or Drago Wrap, Drago Sealant, and Drago Sealant Form.
Cut a slit the size to accommodate the width of the multiple pipes. Try to minimize the void space created.
1
SECTION 7 Drago Wrap Vapor Intrusion Barrier Installation Instructions 10
Place a detail patch over and around the base of the pipe penetrations as closely as possible, ensuring that it is flush with the base of the penetrations. Seal all sides of the detail patch with DragoSeal Tape.
2
Apply Drago Mastic around the entire perimeter of the group of penetra-tions and between the penetrations to
fill any void spaces present.
Note: apply using disposable glove, paint brush,
or similar.
3a
Note: If the void space between Drago Wrap and
the penetrations is not minimized and/or the base
course allows for too much drainage of sealant,
a second coat of Drago Sealant may need to be
poured after the first application has cured.
Drago Sealant pot/working life is roughly
30-45 minutes.
Drago Mastic
OR
3b2
NOTE: Stego Industries, LLC’s (“Stego”) installation instructions are based on ASTM E1643 - Standard Practice for Selection, Design, Installation, and Inspection of Water
Vapor Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs. These instructions are meant to be used as a guide, and do not take into account
specific job site situations. Consult local building codes and regulations along with the building owner or owner’s representative before proceeding. If you have any
questions regarding the above mentioned installation instructions or Stego products, please call us at 877-464-7834 for technical assistance. While Stego employees
and representatives may provide technical assistance regarding the utility of a specific installation practice or Stego product, they are not authorized to make final design
decisions.
Avoid Punctures with Beast® Concrete Accessories
To help eliminate the use of non-permanent penetrations in Drago Wrap installation, Stego Industries recommends
the use of Beast vapor barrier-safe concrete accessories.
IMPORTANT: Avoid puncturing Drago Wrap with stakes while forming, bracing, and screeding.
Set it and forget it. Beast Screed eliminates the need to frequently re-establish grade to ensure floor elevation has not changed during the screeding operation as is typical with traditional wet-screed methods.
Note: Refer to Beast Screed System Installation
Instructions for detailed usage instructions.
This concrete form stake takes the place of traditional nail stakes for interior forming applications, utilizing SpeedTrack™ Fastening Grooves for unlimited fastener placement.
Note: Refer to Beast Form Stake Installation
Guide for detailed usage instructions.
Beast Form Stake is strong enough to withstand a beating during concrete placement while holding its shape. It is easy to remove and reusable for the next job.
Note: Beast Form Stake can be removed once
concrete has set sufficiently to hold its shape. Fill
and repair any voids in the concrete as necessary
once the Beast Form Stake has been removed
and strike Beast Form Stake against a hard sur-
face to loosen the concrete buildup.
BEAST® FORM STAKE can
be used with BEAST® FOOT
as part of the Stego vapor
barrier-safe forming
system which meets ASTM
E1643 requirements.
Preventing punctures in the vapor barrier.
BEAST® HOOK is a
faster, easier way to set 2x4
overhead screeds. Use Beast Foot
and Beast Form Stake and make
it a vapor barrier-safe screed
system.
Locate itand lock it down!
BEAST® SCREED is a fixed-elevation,
point-to-point guide screed system
designed to replace common wet-
screed methods.
Improve efficiency and maintain concrete floor levelness with the BEAST SCREED SYSTEM!
SECTION 8 Drago Wrap Vapor Intrusion Barrier Installation Instructions 11
No tools are required, just grip the knob to loosen or tighten. Fast, easy, efficient.
When it comes to building construction, don’t take the vapor intrusion barrier installation lightly. After all, it is three to protect the building’s vital foundation from the threats lurking below the slab.
Stego’s industry leading barriers and unrivaled support equip you with the confidence to create resilient foundations for buildings where people work, learn, and gather.
All designated trademarks are the intellectual property of Stego Industries, LLC (“Stego”). Installation, Warranty, and State Approval Information: stegoindustries.com/legal. ©2022 Stego Industries, LLC. All rights reserved. 2/2022
DISCUSS YOUR PROJECT NEEDS
We help keep you up to speed on the latest installation methods.
Have questions? Give us a call.
877-464-7834
STE G O I NSTALLATIO
N• SUPPO R T •stegoindustries.com

Attachment D-3

Slotted PVC Pipe Product Specification Sheets

FERGUSON
3” SCH40 SLOTTED .060” wide x .375”
spacing x 3 rows @ 120

East Hwy 30
Paxton, Nebraska 69155
308-239-4281
Customer Signature Approval__________________
3” SCH40
120° Centers
Specifications 3” SCH40 OD – 3.50” Wall – 0.216” ID – 3.068”
Weight – 1.458 lbs per foot
Slot Spacing Slot Width .375” .060”

Attachment D-4

Ventilator Specification Sheets
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

Attachment D-5

Monitoring Point Access Termination Specification Sheets
Family Owned & Operated Since 1990
WBCA 2019
1330 Progress Drive • Front Royal, VA 22630 • Phone: [phone] • www.wbdoors.com

"CLEAROPENINGHEIGHT
CLEAR OPENINGWIDTH
C C
"DOORCLEARANCE
LATCH BOLT COVEREXTENDS 1/2" BEYONDOUTSIDE EDGE OF FRAME
SPRINGMOUNTBRACKET
INTERIORRELEASEMECHANISM
WALL &CEILING
SPECIFICATIONS:
Door: 20 ga. steel
Trim: 16 ga. steel
Finish: Primed white baked enamel, paintable surface
Latches: Knurled knob lock w/1 Flush key
Hinge: Flush continuous piano type hinge.,
Concealed pin. Allows opening to 180°
Insulation: 2” thick mineral wool in between
two pieces of 20 ga. steel
Ceiling Installation: To comply with current fire regulations,
largest size acceptable is 24” x 36”
OPTIONS (at additional cost)
Finishes:
q Stainless Steel Type 304 No. 4 Satin Finish Brushed
q Stainless Steel Type 316 No. 4 Satin Finish Brushed
Options: (additional cost)
q Mortise Best Lock or locks by others
q Hot Smoke Seal gasket all 4 sides**
q Special sizes available
q _____________________________________________
4 ModelNo.
DoorSizeW x H
WallOpening SlamCatch
ShipWt. Lbs.
FR 800 8 x 8 8 1/4 x 8 1/4 1 8
FR 800 10 x 10 10 1/4 x 10 1/4 1 10
FR 800 12 x 12 12 1/4 x 12 1/4 1 12
FR 800 12 x 18 12 1/4 x 18 1/4 1 15
FR 800 12 x 24 12 1/4 x 24 1/4 1 19
FR 800 14 x 14 14 1/4 x 14 1/4 1 14
FR 800 16 x 16 16 1/4 x 16 1/4 1 17
FR 800 18 x 18 18 1/4 x 18 1/4 1 21
FR 800 18 x 24 18 1/4 x 24 1/4 1 26
FR 800 20 x 30 20 1/4 x 30 1/4 1 24
FR 800 22 x 22 22 1/4 x 22 1/4 1 28
FR 800 22 x 24 22 1/4 x 24 1/4 1 29
FR 800 22 x 30 22 1/4 x 30 1/4 2 39
FR 800 22 x 36 22 1/4 x 36 1/4 2 47
FR 800 24 x 24 24 1/4 x 24 1/4 1 32
FR 800 24 x 30 24 1/4 x 30 1/4 2 43
FR 800 24 x 36 24 1/4 x 36 1/4 2 48
FR 800 24 x 48*24 1/4 x 48 1/4 2 62
FR 800 30 x 30*30 1/4 x 30 1/4 2 48
FR 800 32 x 32*30 1/4 x 32 1/4 2 55
FR 800 36 x 36*36 1/4 x 36 1/4 2 58
FR 800 36 x 48*36 1/4 x 48 1/4 2 62
FR 800 48 x 48*48 1/4 x 48 1/4 2 68
UL Listed “B” label for 1-1/2 hours (vertical). Warnock-Hersey listed for 3 hours (horizontal).
** Hot Smoke SealTM fire tested: Listed to meet the requirements of standards UL10B, UL10C, UBC 7-2, Part 1 and BS476: 1987 for application to fire rated door assemblies. Tested for smoke controlled assemblies: Listed to meet the requirements of standards UL1784, NFPA 105, UBC 7-2, Part 2, and BS476:Part 31, Section 31.1:1983.
It also is a chemically inert, highly stable, expandable graphite strip, tested and proven in positive pressure conditions to withstand both hot smoke and hot gasses, resulting in the longer integrity of a door assembly. More economical to use than specially modified doors in “tested assembly only” classifications. Chemically inert, and therefore will not degrade from carbon dioxide and ozone like the many intumescents being offered by other manufacturers.
Hot Smoke Seal™ is not affected by moisture and will not break down like fiber or cellulose based products and does not require periodic after market field inspections.
Insulation: is a rigid mineral wool (stone wool) insulation board for high temperature industrial applications subject to light mechanical loads.] - 2” thickness.
Fire-rated access door for ceiling installation for 3 hr max size 24 x 36.
CEILING OPENING – DOOR SIZE + 3/8”
5/8” FIRE CODEGYPSUM BOARD
INTERIOR LATCH RELEASE
AUTOMATIC SPRING CLOSER ON ALL DOORS
KNURLED KNOB/FLUSH KEYOR KEY OPERATED
1.4”
INSULATION2”
AROUND ROUGH OPENING
WOODJOIST
CONCEALED ROD
HINGE
#12 SELF TAPPING 2”SCREWS
C-SHAPEDSTEEL JOIST
FLOOR
1.4”
This fire-rated door can be
used wherever it is necessary
to provide service access to
shafts and any other location
which must have a fire rating.
Approved ceiling use.
NOTE: For fire-rated ceiling access doors, on size 16” x 16” and larger, extra spring supplied with door must
be attached from back of door pan to framing or floor above. In horizontal (ceiling) applications door has
self-assisted closing.
Knurled Knob
Lock w/1
Flush Key
Optional HOT
Smoked Seal*
gasket
WB FR 800 Series Fire-Rated Access Door 24
SECTION DETAIL
Project: __________________________________________________________________________________Date: ___________________
Contractor: _________________________________________Architect: _____________________________________________________
Sizes: ______________________________________________Quantity: ______________________App Initials: ___________________
RELATED PRODUCTS
WB FRU 810 Ultra Series Fire-Rated
SUBMITTAL SHEET
FRONT ELEVATION
Self latching Slam Catch
* Wall installation only
Dimensional Data (inches and [ mm ]) are Subject to Manufacturing Tolerances and Change Without Notice
SPECIFICATION SHEET
TAG _______
* Regularly furnished unless otherwise specified.
Zurn Industries, LLC | Light Commercial Plumbing Products1801 Pittsburgh Avenue, Erie, PA U.S.A. 16502 · Ph. 855-663-9876, Fax [phone]In Canada | Zurn Industries Limited3544 Nashua Drive, Mississauga, Ontario L4V 1L2 · Ph. 905-405-8272, Fax [phone]
www.zurn.com
Rev. CDate:12/13/17C.N. No.139307Prod. | Dwg. No.CO2450
CO-2450ADJUSTABLE FLOOR CLEANOUT
Typical Installation
'A' Connections 'B'
CO‐2450‐PV2 2 [51] PVC Hub 1‐3/4 [44]
CO‐2450‐PV3 3 [76] PVC Hub 3 [76]
CO‐2450‐PV4 4 [102] PVC Hub 3‐7/16 [87]
CO‐2450‐AB2 2 [51] ABS Hub 1‐3/4 [44]
CO‐2450‐AB3 3 [76] ABS Hub 3 [76]
CO‐2450‐AB4 4 [102] ABS Hub 3‐7/16 [87]
Product Dimensions in In [mm]Engineering Specification: Zurn CO-2450Adjustable Floor Cleanout, recommended for foot traffic andlight-duty applications. This cleanout is furnished with a PVCor ABS body, with an adjustable nickel cover and an ABS taperthread plug.
OPTIONS (Check/specify appropriate options)
PRODUCT ____ CO-2450-PV2 ____ CO-2450-PV3 ____ CO-2450-PV4 ____ CO-2450-AB2 ____ CO-2450-AB3 ____ CO-2450-AB4
SUFFIXES____-CM Carpet Marker____-VP Vandal Proof
Applies to PV3, PV4
AB3 and AB4

Attachment D-6

Wal-Rich Corporation PVC Termination Screen
WAL-RICH CORPORATION • NEW PRODUCT BULLETIN
CALL [phone] · www.wal-rich.com · FAX [phone]
STAINLESS STEEL TERMINATION SCREENS
Ideal for use on high
efficiency heating equipment
Also as condensate trap
screen & vent stack guard.
Patent# D715,409
2202050 2” Stainless Steel Termination Screen
2202052 3” Stainless Steel Termination Screen
2202054 4” Stainless Steel Termination Screen
2202056 6” Stainless Steel Termination Screen
2202060 1” Stainless Steel Termination Screen
Part# Description
made in usa
♦♦♦♦♦Prevent pests, debris, & leaves from entering vent piping
♦♦♦♦♦Push into hub for easy flush installation. No gluing!
♦♦♦♦♦Patented condensate channel prevents buildup & freezing
♦♦♦♦♦Professional grade finish

Attachment E

Site-Specific Indoor Air VOC List
Attachment E
Site-Specific Indoor Air VOC List
Moss Trucking Company Brownfields Property
Charlotte, North Carolina
H&H Job No. EMB-005
Select VOCs by EPA Method TO-15
Acetone
Benzene
Bromodichloromethane
Bromomethane
n-Butylbenzene
sec-Butylbenzene
tert-Butylbenzene
Carbon Disulfide
Carbon Tetrachloride
Chlorobenzene
Chloroethane
Chloroform
Chloromethane
Cyclohexane
1,2-Dichlorobenzene
1,4-Dichlorobenzene
Dichlorodifluoromethane
1,1-Dichloroethane
1,2-Dichloroethane
1,1-Dichloroethene
1,2-Dichloropropane
Dichlorotetrafluoroethane
cis-1,2-Dichloroethene
trans-1,2-Dichloroethene
1,4-Dioxane
Ethanol
Ethyl Acetate
Ethylbenzene
4-Ethyltoluene
Heptane
Hexachloro-1,3-butadiene
n-Hexane
2-Hexanone
Isopropanol
Isopropylbenzene
Methyl tert butyl ether
Methylene Chloride
Methyl Ethyl Ketone
4-Methyl-2-pentanone
Naphthalene
2-Propanol
n-Propylbenzene
Propene
Styrene
Tetrachloroethene
Tetrahydrofuran
Toluene
1,2,4-Trichlorobenzene
1,1,1-Trichloroethane
Trichloroethene
Trichlorofluoromethane
1,1,2-Trichloro-1,2,2-trifluoroethane
1,2,4-Trimethylbenzene
1,3,5-Trimethylbenzene
Vinyl Chloride
m&p-Xylene
o-Xylene
Xylenes (total)
https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Embrey (EMB)/EMB.005 3027 N Tryon Street Brownfields/VIMS/Rev 1/Site-Specific Indoor Air VOC List10/18/2023
Attachment E
Hart & Hickman, PC