26018-VIMP_McLaurin Trucking Company II 20221213

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Vapor Intrusion Mitigation Plan Prose NoDa Multifamily Apartments
McLaurin Trucking Company II Brownfields Property Charlotte, North Carolina H&H Job No. ALI-006
Table of Contents
1.0 Introduction ................................................................................................................ 1
1.1 Background............................................................................................................2
1.2 Vapor Intrusion Evaluation ...................................................................................4
2.0 Design Basis ................................................................................................................ 6
2.1 Base Course Layer and Vapor Barrier ...................................................................6
2.2 Horizontal Collection Piping and Vertical Riser Piping .......................................8
2.3 Monitoring Points ..................................................................................................9
2.4 General Installation Criteria ................................................................................10
3.0 Quality Assurance / Quality Control ..................................................................... 11
4.0 VIMS Effectiveness Testing .................................................................................... 12
4.1 Influence Testing .................................................................................................12
4.2 Pre-Occupancy Sub-Slab Soil Gas Sampling ......................................................12
4.3 VIMS Effectiveness Results ................................................................................14
5.0 VIMS Effectiveness Monitoring ............................................................................. 17
6.0 Future Tenants & Building Uses ............................................................................ 18
7.0 Reporting .................................................................................................................. 19

Figures
Figure 1 Site Location Map
Figure 2 Site Map

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Appendices
Appendix A Redevelopment Plan
Appendix B Previous Assessment Data Summary
Appendix C Vapor Intrusion Mitigation Design Drawings
Appendix D Product Specification Sheets & Installation Instructions

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Vapor Intrusion Mitigation Plan Prose NoDa Multifamily Apartments
McLaurin Trucking Company II Brownfields Property Charlotte, North Carolina H&H Job No. ALI-006
1.0 Introduction

On behalf of Alliance Realty Partners, LLC (Prospective Developer or PD), Hart &
Hickman, PC (H&H) has prepared this Vapor Intrusion Mitigation Plan (VIMP) for the proposed
redevelopment at the McLaurin Trucking Company II Brownfields Property (Brownfields
Project No. 26018-22-060) located at 2600 S. Tryon Street in Charlotte, Mecklenburg County,
North Carolina (Site). The Site is comprised of one approximately 3.5-acre parcel of land
(Parcel ID No. 08302307) located in a rapidly densifying area north of Uptown Charlotte. A Site
location map is provided as Figure 1, and the Site and surrounding area are shown on Figure 2.

Historically, the Site consisted of agricultural land as early as 1938. By 1944, a trucking
terminal and associated repair shop were constructed at the Site. In the late 1960s or early
1970s, the repair shop was demolished; however, the trucking company operated at the Site until
at least the 1980s. In the late 1990s, the terminal building was demolished, and a United States
Postal Service (USPS) post office was constructed. The USPS facility was demolished in the
mid-2010s, and the Site has been vacant since. The building slab associated with the former
USPS post office building, asphalt-paved parking lots and driveways, and landscaped areas
remain at the Site. Current Site conditions and the approximate locations of historical Site
features are shown on Figure 2.

To address potential environmental concerns associated with the Site, it was initially entered into
the North Carolina Department of Environmental Quality (DEQ) Brownfields Program by a
different prospective developer and received a Letter of Eligibility dated April 15, 2021. In June
2021, the PD entered into a contract to purchase the Site, and a new eligibility determination for
the PD was documented in letter dated April 29, 2022. H&H understands a Notice of
Brownfields Property (Brownfields Agreement) will be recorded between the PD and DEQ. The
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PD plans to redevelop the Site with a high-density residential apartment building known as Prose
NoDa, which will include amenity areas, a leasing office, two courtyards, and an attached multi-
level parking garage. A copy of the redevelopment layout is included as Appendix A.

The proposed five-story high-density apartment building will consist of a total enclosed
occupiable ground floor space of approximately 60,100 square feet (sq ft). The ground floor
spaces are proposed to contain residential units, the leasing office, and associated amenity areas.
The second through fifth levels of the building are proposed to consist of residential units.

1.1 Background

In May 2015, Genesis Project, Inc. (Genesis) conducted soil and groundwater sampling activities
at the Site to assess the potential for impact from historical Site use as a trucking terminal and
automotive repair shop, the historical on-Site petroleum USTs, and potential upgradient sources.
Results of groundwater sampling activities indicated the presence of tetrachloroethylene (PCE)
in a temporary groundwater monitoring well installed in the northern (upgradient) portion of the
Site at a concentration of 89.3 micrograms per liter (µg/L), which exceeds the North Carolina
Department of Environmental Quality (DEQ) 2L Groundwater Standard (2L Standard) of
0.7 µg/L for PCE but is below the DEQ Division of Waste Management (DWM) Vapor Intrusion
Groundwater Screening Levels (GWSLs). Tabular summaries of previous assessment data and
figures showing historical sample locations are provided in Appendix B.

In March 2021, H&H conducted soil gas sampling activities at the Site to evaluate the potential
for vapor intrusion into future Site buildings. Results of the soil gas sampling indicated the
presence of the volatile organic compounds (VOCs) benzene, hexane, naphthalene, and PCE in
soil gas at the Site at concentrations above DEQ DWM Residential Sub-Slab and Exterior Soil
Gas Screening Levels (SGSLs). The detected concentration of naphthalene in one soil gas
sample also exceeds the Non-Residential SGSL.

Methane screening results indicate that low levels of methane were detected in SG-1, SG-8, and
SG-9 at concentrations not within the explosive limits and below the DEQ Solid Waste
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Regulatory level of 1.25% by volume air. Based on the results of methane screening activities,
methane vapor intrusion into the proposed Site building is not a significant concern based on the
DEQ Brownfields Program Threshold Criteria for Methane Site Development, including
properties intended for residential reuse.

On April 7, 2022, a kick-off/data gap conference call was held with the PD, the DEQ
Brownfields Program project manager, and H&H to discuss Site history, previous environmental
assessment, proposed redevelopment plans, data gaps, and a proposed schedule for completing
the Brownfields Agreement. To address the data gaps identified during the kick-off meeting,
DEQ requested collection of additional soil and groundwater samples. H&H conducted
Brownfields Assessment activities in July 2022 in accordance with the DEQ-approved Work
Plan dated May 24, 2022.

Soil sampling results indicated the presence of low concentrations of primarily petroleum-related
VOCs and SVOCs. None of the detected VOC or SVOC concentrations are above the
Residential or Industrial/Commercial PSRGs. The metals arsenic and hexavalent chromium
were detected slightly above the Residential PSRGs multiple soil samples collected on the Site.
However, the detected concentrations of arsenic and hexavalent chromium are generally
consistent with concentrations detected at numerous Brownfields properties across Charlotte,
including undeveloped properties, and are likely naturally occurring. Groundwater sampling
activities at the subject Site included installation and sampling of three temporary groundwater
monitoring wells. Laboratory analytical results indicated no VOCs or SVOCs were detected in
groundwater samples at concentrations above the 2L Standards or DEQ DWM GWSLs.
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1.2 Vapor Intrusion Evaluation

Results of risk calculations from the March 2021 soil gas sampling event were run for a
residential and non-residential use scenario and indicated that the non-carcinogenic health risk
exceeds the acceptable risk level for a residential use scenario for multiple collected samples.
Since the risk calculator results for the soil gas to indoor air vapor intrusion pathway using data
from the March 2021 sampling events exceeded acceptable risk levels for residential use
scenario, the PD plans to install a vapor intrusion mitigation system during construction of the
proposed residential building at the Site. Based on review of the laboratory analytical data and
risk evaluation results, potential structural vapor intrusion can be managed through installation of
a passive vapor intrusion mitigation system during construction of the proposed residential
building.

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

The vapor intrusion mitigation system 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
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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.

Alexis McKenzie NC PE #052740
Hart & Hickman, PC
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2.0 Design Basis
The VIMS design drawings for the Prose NoDa multi-family apartments development are
included in Appendix C (Sheets VM-1, VM-2, VM-2A, and VM-3) and will be used to guide
construction of the VIMS. To reduce the potential for structural vapor intrusion, the VIMS in
each building 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 turbine ventilators installed
above the building roof to enhance the passive system. The Site building will be constructed as
slab-on-grade foundation with thickened slabs below load-bearing walls in the first-floor areas
with residential units and will be column supported in the amenity and leasing office areas along
Matheson Avenue. The proposed residential building will not contain commercial spaces or
pour-back spaces.

2.1 Base Course Layer and Vapor Barrier

The VIMS includes placement of a minimum 5-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
layer below the ground floor slab 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 (Appendix C).

The vapor liner 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 Appendix D.
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Note that an equivalent VOC rated vapor barrier, if approved by the engineer, may be used by
the installation contractor. If an alternate equivalent vapor barrier is selected for use, DEQ will
be notified in writing, and specification and installation instruction sheets will be provided.

The 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 barrier
manufacturer recommends select sealing agents (mastics, tapes, etc.) for their vapor barrier
product. In accordance with manufacturer installation instructions, alternative vapor liner
products that are not approved by the manufacturers for sealing will not be used unless approved
by the design engineer and specific manufacturer.

The exterior edges of the vapor barrier 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-approved mastics.
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.
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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
(Appendix B). 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 Appendix D.

As an alternative to 3-inch diameter SCH 40 PVC horizontal piping, soil gas collector mat
manufactured by Radon Professional Discount Supply (Radon PDS) may be used for sub-slab
vapor collection piping. The Radon PDS soil gas collector mat is a polystyrene, plastic,
rectangular conduit with a geotextile fabric covering. The mat is 1 inch thick and 12 inches wide
and is specifically designed for collecting soil gas from below a building. If used, the soil gas
collector mat will be connected to the proposed 3-inch diameter vertical risers and footing
crossings using Radon PDS-manufactured riser connection fittings. In lieu of the soil gas
collector mat extending unprotected through concrete, solid PVC pipe will be used as a soil gas
collector mat conduit in locations of footings and thickened slab crossings. Product
specifications for the soil gas collector mat are provided in Appendix 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 vertical riser piping above the building roofline for the Site
building. The purpose of the ventilators is to further 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.
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Product specifications for the proposed turbine ventilators are provided in Appendix D.
Electrical junction boxes (120VAC) will be installed on the roof of each building in proximity to
riser exhaust discharges should connection of an electrical (active) fan be warranted in the future.

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. One
temporary monitoring point (TMP-1) will be installed in the eastern portion of the building and
will be abandoned following successful influence testing as discussed in Section 4.1. The
monitoring point locations are shown on the VIMS design drawings (Appendix 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 hallway corridors, mechanical rooms, or amenity spaces and protected by a floor
clean-out style cover. 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 Appendix 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 shall use “low or no VOC” products and materials. Furthermore, the construction
contractors shall 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.

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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.
To minimize potential preferential pathways through the slab, contractors will not use hollow
piping to support utilities in preparation for concrete pours. Contractors will be instructed to
remove hollow piping observed during the field inspections. The contractor shall notify the
engineer certifying the VIMP, or his/her designee, with a 48-hour notice prior to a planned
inspection, and H&H will provide a subsequent 48-hour notice to DEQ for the pending
inspection. Please note that 48-hour notice to DEQ may not be possible in some cases due to
tight construction sequencing. In the event that 48-hour notice is not possible, DEQ will be
provided with as much notice as possible.
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4.0 VIMS Effectiveness Testing
4.1 Influence Testing

Post-installation (pre-occupancy) influence testing will be conducted on the 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 is 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. Following successful influence testing,
temporary monitoring point TMP-1 will be permanently abandoned.

4.2 Pre-Occupancy Sub-Slab Soil Gas Sampling

Following VIMS installation, but prior to occupancy of the building, 12 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. The proposed sub-slab
soil gas samples for the Site building will be collected from MP-1, MP-2, MP-3, MP-6, MP-8
MP-10, MP-11, MP-12, MP-15, MP-16, MP-17, and MP-20. One duplicate sub-slab soil gas
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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 the 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.

The sub-slab soil gas samples will be collected over an approximate 10-minute period using
laboratory supplied batch certified 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.

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4.3 VIMS Effectiveness Results

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). After receipt of the sub-
slab soil gas sample analytical results, the most recent version of the DEQ Risk Calculator will
be used to evaluate cumulative potential vapor intrusion risks under a residential scenario. The
VIMS will be considered effective if the calculated cumulative risks are 1x10-4 or less for
potential carcinogenic risks and a Hazard Index of 1.0 or less for potential non-carcinogenic
risks, in accordance with DEQ risk calculator thresholds. The PD acknowledges that DEQ may
still request additional sampling if Site contaminants of concern are elevated, even if the risk
calculations are acceptable.

In the event that calculated cumulative risks for a residential scenario based on sub-slab soil gas
sample data are greater than 1x10-4 for potential carcinogenic risks and/or above a Hazard Index
of 1.0 for potential non-carcinogenic risks, confirmation sub-slab soil gas or indoor air (see
below) samples will be collected for laboratory analysis from the area of potential concern. In
the event that an additional round of samples indicates acceptable risk levels are met, no further
pre-occupancy sampling will be conducted. In the event that calculated cumulative risks for a
residential scenario continue to exceed acceptable levels for potential carcinogenic risks and/or
potential non-carcinogenic risks, considerations will be made to convert the system from a
passive system to an active system with electric fans.

Indoor Air Sampling (if warranted)
The building is intended to be occupied shortly following completion and initialization of the
HVAC system. Therefore, the indoor air sampling events (if warranted) will be conducted
following complete installation of the VIMS and after the building and/or sample area has been
fully enclosed. When possible, the indoor air sampling will be completed 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
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HVAC system is running.” Furthermore, HVAC equipment is typically not able to be activated
until approximately a few weeks prior to closing 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 closing.

In addition, HVAC equipment is not 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 HVAC operating and finishing activities is proposed if indoor air sampling is
warranted. If indoor air sampling is required, the locations, number of indoor air samples, and
timing for the indoor air samples will be chosen based on sub-slab soil gas sampling analytical
data and discussions between the design engineer and DEQ.

The indoor air samples will be collected 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 period for a residential use scenario. The sample will be set so the intake
point is positioned approximately 5 ft above grade (typical breathing zone height). In addition,
during each indoor air sampling event, one duplicate sample for laboratory QA/QC and one
background ambient air sample will be collected from a location upwind of the building, as
determined by conditions on the day of the sampling event. 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
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within the Summa canisters during sampling to ensure adequate sample volume is collected. The
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. The select compound
list will be based upon the compounds detected in sub-slab soil gas samples. The analytical
laboratory will be instructed to report vacuum measurements at receipt and J-flag concentrations
for each sample. The laboratory will be requested to 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 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.

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 is warranted (per the DWM
VI Guidance, in the case where calculated cumulative risks are 1x10-4 or less for potential
carcinogenic risks and a hazard index of 1.0 or less 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). In this scenario, electric fans may be installed as part of the VIMS to
replace the wind ventilators. If electric (active) fans are proposed, the plans for the
installation of the fans (e.g. location, fan type, etc.) and follow-up sub-slab soil gas and
indoor air sampling will be submitted to DEQ for approval prior to implementation.
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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. 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 Program 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-construction VIMS effectiveness monitoring will include semi-annual sub-slab soil gas
sampling at the locations indicated in Section 4.0. Following the initial sampling event
completed pre-occupancy, a request to modify or reduce the number of sub-slab samples based
on pre-occupancy sampling results may be submitted to DEQ for approval. The ongoing semi-
annual sampling will be conducted using the procedures described in this VIMP, and the first
semi-annual event will be completed approximately six months after the pre-occupancy
sampling. After four semi-annual sampling events (including the pre-occupancy event), if the
sampling results indicate consistent or decreasing concentrations within acceptable risk levels, a
request to modify or terminate sampling will 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.

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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 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. Annual inspections are
recommended 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, and VIMS effectiveness testing results. 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 Brownfields Agreement is anticipated to include standard land use restrictions that indicate
the building 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 of DEQ, with the decision based on the pre-occupancy
VIMS efficacy sampling results.

After each semi-annual post-occupancy sub-slab soil gas sampling event, a report will be
submitted to DEQ to document the sampling activities and results.

Copyright:© 2013 National Geographic Society, i-cubed
SITE LOCATION MAP
MCLAURIN TRUCKING COMPANY II 2600 N. TRYON STREET
CHARLOTTE, NORTH CAROLINA
DATE: 2-18-22
JOB NO: ALI-006
REVISION NO: 0
FIGURE NO: 1
3921 Sunset Ridge Road, Ste. 301Raleigh, North Carolina 27607919-847-4241 (p) 919-847-4261 (f)License # C-1269 / # C-245 Geology
TITLE
PROJECT
0 2,000 4,000
SCALE IN FEET
SITE
Path: \\HHFS01\Redirectedfolders\sperry\My Documents\ArcGIS\PROJECTS\RPH-016\Figure 1 - Site Location Map.mxdN
U.S.G.S. QUADRANGLE MAP
CHARLOTTE EAST, NORTH CAROLINA 2013
QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC)
REVISION NO. 0
JOB NO. ALI-006
DATE: 2-18-22
FIGURE NO. 2
MCLAURIN TRUCKING COMPANY II
2600 N. TRYON STREET
CHARLOTTE, NORTH CAROLINA
SITE MAP
LEGEND
SITE PROPERTY BOUNDARY
PARCEL BOUNDARY
TRIBUTARY TO LITTLE SUGAR CREEK
POLE-MOUNTED TRANSFORMER
FLOOR DRAIN
APPROXIMATE LOCATION OF
HISTORICAL TRUCKING TERMINAL AND
AUTOMOTIVE REPAIR BUILDINGS
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
MASA AUTO SALE
(2528 N. TRYON STREET)
MULTI-TENANT COMMERCIAL
(2601 N. TRYON STREET)
MAINSTREAM MOTORS
(2627 N. TRYON STREET)
VACANT PROPERTY
(125 MATHESON AVENUE)
FORMER SHELL GAS STATION
(2700 N. TRYON STREET)
INTERNATIONAL PAPER
(201 E. 28TH STREET)
VACANT
LAND
N. T
R
Y
O
N
ST
R
E
E
T
N. CHUR
C
H

S
T
R
E
E
T
M
A
T
H
E
S
O
N

A
V
E
N
U
EW.
3
0
T
H

S
T
R
E
E
T
NOTES:
1.AERIAL IMAGERY OBTAINED FROM MECKLENBURG COUNTY
GIS (2020).
2.UST = UNDERGROUND STORAGE TANK
3.FORMER UST LOCATIONS ARE UNCLEAR AND WERE
ESTIMATED DUE TO INCONSISTENCIES IN PRIOR ENVIRONMENTAL REPORTS.
MASA AUTO SALE
(2528 N. TRYON STREET)
HISTORICAL TRUCK
REPAIR BUILDING
HISTORICAL TRUCKING
TERMINAL BUILDING
FORMER FUEL OIL UST
SOIL PILE
WOOD, METAL, &
CONCRETE DEBRIS
SOIL PILE
VACANT
LAND
U:\AAA-Master Projects\Ralph Falls (RPH)\RPH-016 - Former QuikTrip Property\Phase I & II ESA\Figures\Site Map - Phase I.dwg, FIG 2, 4/14/2021 9:57:00 AM, shaynesESTIMATED LOCATION OF FORMER PETROLEUM USTs
ESTIMATED LOCATION OF FORMER PETROLEUM UST
ESTIMATED LOCATION OF FORMER DIESEL USTs
FORMER BODY SHOP BASED ON SANBORN MAPS

Appendix A

Redevelopment Plan
11.5' CYCLE TRACK11.5' CYCLE TRACK8' SIDEWALKN. TRYON STREET
RETAIN EXISTINGCURB & GUTTERAND SIDEWALKEXISTEXIST
EXISTEXIST RETAIN EXISTINGCURB & GUTTEREXISTING FENCE,DO NOT DISTURBRETAIN EXISTINGCURB & GUTTERAND SIDEWALKEXISTEXIST
EXISTEXIST RETAIN EXISTINGCURB & GUTTEREXISTING FENCE,DO NOT DISTURBVAN WALLWALLN TRYONMATHESONAVE(FKA 30TH ST)VARIABLE WIDTH PUBLIC RIGHT OF WAYN TRYONMATHESONAVE(FKA 30TH ST)VARIABLE WIDTH PUBLIC RIGHT OF WAY~NOW OR FORMERLY~INTERNATIONAL PAPER COMPANYDB 27644/278PID 08302305~NOW OR FORMERLY~MARWAN MARZOUKSAHAR MARZOUKDB 10511/61PID 08302302~NOW OR FORMERLY~MARWAN MARZOUKDB 34005/277PID 08302308~NOW OR FORMERLY~MECKLENBURG COUNTYDB 10142/936PID 08302306~NOW OR FORMERLY~INTERNATIONAL PAPER COMPANYDB 27644/278PID 08302305~NOW OR FORMERLY~MARWAN MARZOUKSAHAR MARZOUKDB 10511/61PID 08302302~NOW OR FORMERLY~MARWAN MARZOUKDB 34005/277PID 08302308~NOW OR FORMERLY~MECKLENBURG COUNTYDB 10142/936PID 083023060DD
DD
DD
DD
DD
DD
SSSSS911
N. TRYON STREET
(EX. PUBLIC R/W - NCDOT MAINTAINED )MATHESON AVE(EX. PUBLIC R/W - CDOT MAINTAINED)UP
UP
NORTH TRYON STREET
MATHESON AVENUEPOOL COURTYARDCOURTYARD
3HR FIREWALL
DOG PARK
© 2021 CLINE DESIGN ASSOCIATES, PA EXPRESSLY RESERVES ITS COMMON LAW COPYRIGHT AND OTHER PROPERTY RIGHTS IN THESE PLANS. THESE PLANS ARE NOT TO BE REPRODUCED, CHANGED OR COPIED IN ANY FORM OR MANNER WHATSOEVER, NOR ARE THEY TO BE ASSIGNED TO ANY THIRD PARTY WITHOUT FIRST OBTAINING THE EXPRESSED WRITTEN PERMISSION AND CONSENT OF CLINE DESIGN ASSOCIATES, PA.DRAWN BY:
CHECKED BY:
DATEREVISIONS:
DATE:
PROJECT:
220 E. Peterson Dr.
Charlotte, NC 28217
704/333-7272
ClineDesignAssoc.comNOT FORCONSTRUCTION7/1/2022 2:31:06 PMBIM 360://Prose Noda/221093 - Prose NoDa.rvtALLIANCE RESIDENTIAL, LLCPROSE NoDaN. TRYON AND MATHESON AVE.CHARLOTTE, NC221093
ARCHITECTURAL SITE
PLAN
G1.02
7/1/2022
RL
RL, ASDESIGNDEVELOPMENT
1" = 20'-0"1SITE PLAN

Appendix B

Previous Assessment Data Summary
Table 1Summary of Soil Analytical ResultsMcLaurin Trucking Company II2600 N. Tryon StreetCharlotte, North CarolinaH&H Job No. ALI-006Sample IDPB-1 PB-2 PB-3 SW-1 SW-2 SW-3 SW-4 PB-4 PB-5 PB-6 SW-5 SW-6 SW-7 SW-8 TB-1 TB-2 TB-3 TB-4 TB-5 TB-6 DI-1Location DescriptionFormer Diesel DispenserDateDepth (ft bgs)181818888816161677771212121212122.5VOCs (8260)AcetoneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAn-ButylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAsec-ButylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAEthylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAn-HexaneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAIsopropylbenzene (Cumene)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAp-IsopropyltolueneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAMethyl AcetateNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAMethyl Butyl Ketone (2-Hexanone)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAMethyl Ethyl Ketone (2-Butanone)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAMethyl Isobutyl KetoneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAMethylcyclohexaneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAMethylene ChlorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANaphthaleneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAn-PropylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA1,2,4-TrimethylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA1,3,5-TrimethylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAo-XyleneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAXylenes, totalNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NASVOCs (8270E)2-MethylnaphthaleneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANaphthaleneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NABenzo(a)anthraceneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NABenzo(a)pyreneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NABenzo(b)fluorantheneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAChryseneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAFluorantheneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAPhenanthreneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAPyreneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NARCRA Metals (6010/6020/7471B/7199)ArsenicNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NABariumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NACadmiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAChromium (Total)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NALeadNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAMercuryNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NASeleniumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NASilverNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NATPH DRO (8015)BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL43.8 1,170 58.3 26.6 123 16663.8 1.17 39 1,640 37.4TPH GRO (8015/5030)BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL1.52 5.22 3.8 0.27 6.14 12 2.27BDL1.27 47.5 0.34C5-C8 Aliphatics (VPH)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAC9-C18 Aliphatics (VPH & EPH)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAC19-C36 Aliphatics (EPH)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAC9-C22 Aromatics (VPH & EPH)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANotes:1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) (July 2022).2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005Underlined values exceed the DEQ Residential PSRGs (and the regional background concentrations for metals only).Gray highlighted values exceed the DEQ Industrial/Commercial PSRGs (and the regional background concentrations for metals only).Compound concentrations are reported to the laboratory method detection limits.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Compound concentrations are reported in milligrams per kilogram (mg/kg). Laboratory analytical methods are shown in parenthesesThe Phase I and Phase II Environmental Site Assessment Report by Genesis Project, Inc. dated May 26, 2015 indicates the D-4 soil sample was a composite. Information related to the sample depth is not available.Historical documentation is not available showing locations of samples DI-1 and L-1.VOCs = volatile organic compounds; SVOCs = semi-VOCs; RCRA = Resource Conservation and Recovery Act; TPH = Total Petroleum Hydrocarbons; DRO = Diesel Range Organics; GRO = Gasoline Range OrganicsVPH = Volatile Petroleum Hydrocarbons; EPH = Extractable Petroleum HydrocarbonsNE = not established; NA = not analyzed; ND = non-detect; UST= underground storage tank; -- = not applicable; ft bgs = feet below ground surface; N/A = not available; BQL= below quantitation limits; BDL = below detection limitsJ = estimated concentration between the laboratory method detection limit and the laboratory reporting limit.Former 10,000-Gallon Diesel UST3/16/1994Former 5,000-Gallon Diesel USTs3/16-17/1994https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Alliance Residential Company (ALI)/ALI‐006 N. Tryon Street/EMP/Tables/Alliance Residential EMP Tables_JSH.xlsx 8/26/2022Table 1 (Page 1 of 3) Hart & Hickman, PC
Table 1Summary of Soil Analytical ResultsMcLaurin Trucking Company II2600 N. Tryon StreetCharlotte, North CarolinaH&H Job No. ALI-006Sample IDL-1 GP-1 GP-3 GP-4 GP-5 GP-6 GP-7 GP-8 GP-9 SS-1 SS-2 SS-3 DMW-1 DMW-2A DMW-2B DMW-2C S1A-1/R1A-1 S1A-2/R1A-2 S1B-1/R1B-1 S1B-2/R1B-2 S2-1/R2-1 S2-2/R2-2 S2-3/R2-3Location DescriptionFormer Diesel Product LineDateDate Unknown 4/12/1994 4/12/1994 4/12/1994 4/12/1994 4/12/19944/12/1994 4/12/1994 4/12/1994 5/22/1994 5/22/1994 5/22/1994 5/8/1998Depth (ft bgs)2.5 9-11 9-11 9-11 9-11 8-10 8-10 9-11 9-11 14 14 14 5-7 3-5 8-10 13-15 13 13 12 12 10 10 10VOCs (8260)AcetoneNA NA NA NA NA NA NA NA NA NA NA NAN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/An-ButylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA0.11BDL BDL BDL3.00 3.90 6.50 8.60 8.00 9.90 9.50sec-ButylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA0.086BDL BDL BDL1.80 2.40 4.50 7.60 9.10 4.10 5.10EthylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA N/A N/A N/A N/A BDL BDL BDL BDL1.40BDL BDLn-HexaneNA NA NA NA NA NA NA NA NA NA NA NAN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AIsopropylbenzene (Cumene)NA NA NA NA NA NA NA NA NA NA NA NA N/A N/A N/A N/A BDL BDL BDL1.40 2.70BDL BDLp-IsopropyltolueneNA NA NA NA NA NA NA NA NA NA NA NA N/A N/A N/A N/A1.40 0.82 1.20 2.10 6.50 3.90 1.40Methyl AcetateNA NA NA NA NA NA NA NA NA NA NA NAN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AMethyl Butyl Ketone (2-Hexanone)NA NA NA NA NA NA NA NA NA NA NA NAN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AMethyl Ethyl Ketone (2-Butanone)NA NA NA NA NA NA NA NA NA NA NA NAN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AMethyl Isobutyl KetoneNA NA NA NA NA NA NA NA NA NA NA NAN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AMethylcyclohexaneNA NA NA NA NA NA NA NA NA NA NA NAN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AMethylene ChlorideNA NA NA NA NA NA NA NA NA NA NA NAN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/ANaphthaleneNA NA NA NA NA NA NA NA NA NA NA NA0.14BDL BDL BDL1.90BDL2.608.8024.0015.004.60n-PropylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA N/A N/A N/A N/A BDL BDL0.77 2.90 5.80 0.74BDL1,2,4-TrimethylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA0.07BDL BDL BDL1.70 0.74BDL0.69 24.00 9.40BDL1,3,5-TrimethylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA N/A N/A N/A N/A1.40BDL BDL BDL15.00 7.10BDLo-XyleneNA NA NA NA NA NA NA NA NA NA NA NAN/AN/AN/AN/AN/AN/AN/AN?AN/AN/AN/AXylenes, totalNA NA NA NA NA NA NA NA NA NA NA NA N/A N/A N/A N/A0.73BDL BDL BDL6.80 1.80BDLSVOCs (8270E)2-MethylnaphthaleneNA NA NA NA NA NA NA NA NA NA NA NA0.87BDL BDL BDL14.00 11.00 9.50 12.0081.0014.009.70NaphthaleneNA NA NA NA NA NA NA NA NA NA NA NA0.36BDL BDL BDL BDL BDL BDL BDL33.004.30BDLBenzo(a)anthraceneNA NA NA NA NA NA NA NA NA NA NA NA N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/ABenzo(a)pyreneNA NA NA NA NA NA NA NA NA NA NA NA N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/ABenzo(b)fluorantheneNA NA NA NA NA NA NA NA NA NA NA NA N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/AChryseneNA NA NA NA NA NA NA NA NA NA NA NA N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/AFluorantheneNA NA NA NA NA NA NA NA NA NA NA NA N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/APhenanthreneNA NA NA NA NA NA NA NA NA NA NA NA1.9BDL BDL BDL7.00 8.20 5.50 8.80 27.00 8.50 4.90PyreneNA NA NA NA NA NA NA NA NA NA NA NA N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/ARCRA Metals (6010/6020/7471B/7199)ArsenicNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NABariumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NACadmiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAChromium (Total)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NALeadNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAMercuryNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NASeleniumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NASilverNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NATPH DRO (8015)BQL6,260 350 17.3 506BDL248 2,550 141BDL30BDL530NA NA NA NA NA NA NA NA NA NATPH GRO (8015/5030)BQL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL34NA NA NA NA NA NA NA NA NA NAC5-C8 Aliphatics (VPH)NA NA NA NA NA NA NA NA NA NA NA NA NA11 12 9.0 110NA NA100 120NA NAC9-C18 Aliphatics (VPH & EPH)NA NA NA NA NA NA NA NA NA NA NA NA NA1775.351.51,100NA NA1,4106,280NA NAC19-C36 Aliphatics (EPH)NA NA NA NA NA NA NA NA NA NA NA NA NABDL15 13 150NA NA420 990NA NAC9-C22 Aromatics (VPH & EPH)NA NA NA NA NA NA NA NA NA NA NA NA NA3.74772620NA NA1,1402,580NA NANotes:1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) (July 2022).2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005Underlined values exceed the DEQ Residential PSRGs (and the regional background concentrations for metals only).Gray highlighted values exceed the DEQ Industrial/Commercial PSRGs (and the regional background concentrations for metals only).Compound concentrations are reported to the laboratory method detection limits.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Compound concentrations are reported in milligrams per kilogram (mg/kg). Laboratory analytical methods are shown in parenthesesThe Phase I and Phase II Environmental Site Assessment Report by Genesis Project, Inc. dated May 26, 2015 indicates the D-4 soil sample was a composite. Information related to the sample depth is not available.Historical documentation is not available showing locations of samples DI-1 and L-1.VOCs = volatile organic compounds; SVOCs = semi-VOCs; RCRA = Resource Conservation and Recovery Act; TPH = Total Petroleum Hydrocarbons; DRO = Diesel Range Organics; GRO = Gasoline Range OrganicsVPH = Volatile Petroleum Hydrocarbons; EPH = Extractable Petroleum HydrocarbonsNE = not established; NA = not analyzed; ND = non-detect; UST= underground storage tank; -- = not applicable; ft bgs = feet below ground surface; N/A = not available; BQL= below quantitation limits; BDL = below detection limitsJ = estimated concentration between the laboratory method detection limit and the laboratory reporting limit.Excavation Confirmation SamplesDiesel Soil Impact DelineationFormer 5,000-Gallon Diesel UST6/29/1998December 1998Former 5,000-Gallon USTs (Unknown Contents) Former 4,000-Gallon UST (Unknown Contents)https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Alliance Residential Company (ALI)/ALI‐006 N. Tryon Street/EMP/Tables/Alliance Residential EMP Tables_JSH.xlsx 8/26/2022Table 1 (Page 2 of 3) Hart & Hickman, PC
Table 1Summary of Soil Analytical ResultsMcLaurin Trucking Company II2600 N. Tryon StreetCharlotte, North CarolinaH&H Job No. ALI-006Sample IDT-1 C-1 D-2 D-3 D-4 BF-SB-1 BF-SB-3 BF-SB-4 BF-SB-5Location DescriptionFormer Dispenser IslandUpgradient Portion of SiteCross-Gradient Portion of SiteDowngradient Portion of SiteCross- to Downgradient Portion of SiteArea of Reported Soil Impacts During 2015 Phase II ESADebris AreaDateDepth (ft bgs)4-6 8-10 6-7.5 6-7.5 Composite 0-2 2-4 2-4 0-2 Range MeanVOCs (8260)AcetoneN/A N/A N/A N/A N/A0.0230.032 0.046 0.028 0.0290.040 12,000 140,000 -- --n-ButylbenzeneN/A N/A N/A N/A N/A<0.00050.002 J<0.0006 <0.0007 <0.0006 <0.0007780 12,000 -- --sec-ButylbenzeneN/A N/A N/A N/A N/A<0.00060.001 J<0.0007 <0.0007 <0.0007 <0.00081,600 23,000 -- --Ethylbenzene<0.004 <0.005 <0.005 <0.005 <0.004<0.0006<0.0007 <0.0007 <0.0008 <0.0008 <0.00086.1 27 -- --n-HexaneN/A N/A N/A N/A N/A0.002 J0.003 J<0.0008 <0.00090.003 J<0.0009130 540 -- --Isopropylbenzene (Cumene)N/A N/A N/A N/A N/A<0.0005<0.0006 <0.0006 <0.0006 <0.0006 <0.0006410 2,100 -- --p-IsopropyltolueneN/A N/A N/A N/A N/A<0.0010.001 J<0.001 <0.001 <0.001 <0.001NE NE -- --Methyl AcetateN/A N/A N/A N/A N/A NA NA NA NA NA NA16,000 230,000 -- --Methyl Butyl Ketone (2-Hexanone)N/A N/A N/A N/A N/A <0.0007 <0.0008 <0.0007 <0.0008 <0.0008 <0.000942 280 -- --Methyl Ethyl Ketone (2-Butanone)N/A N/A N/A N/A N/A0.003 J<0.00080.006 J 0.003 J 0.004 J 0.004 J 5,500 40,000 -- --Methyl Isobutyl KetoneN/A N/A N/A N/A N/A <0.016 <0.018 <0.018 <0.020 <0.019 <0.0207,000 30,000 -- --MethylcyclohexaneN/A N/A N/A N/A N/A NA NA NA NA NA NANE NE -- --Methylene ChlorideN/A N/A N/A N/A N/A0.002 J 0.003 J 0.001 J 0.002 J 0.003 J<0.00258 650 -- --NaphthaleneN/A N/A N/A N/A N/A <0.001 <0.001 <0.001 <0.001 <0.001 <0.0012.1 8.8 -- --n-PropylbenzeneN/A N/A N/A N/A N/A<0.0006<0.0007 <0.0007 <0.0007 <0.0007 <0.0008780 5,100 -- --1,2,4-TrimethylbenzeneN/A N/A N/A N/A N/A <0.00050.003 J 0.0010 J<0.0007 <0.0006 <0.000763 370 -- --1,3,5-TrimethylbenzeneN/A N/A N/A N/A N/A <0.00060.002 J 0.0007 J<0.0007 <0.0007 <0.000856 320 -- --o-XyleneBDL BDL BDL BDL BDL <0.00060.0006 J<0.0006 <0.0007 <0.0006 <0.0007140 590 -- --Xylenes, total<0.009 <0.009 <0.009 <0.010 <0.008 <0.00060.0006 J<0.0006 <0.0007 <0.0006 <0.0007120 530 -- --SVOCs (8270E)2-MethylnaphthaleneNA NA NA NA NA <0.111 <0.607 <0.120 <0.133 <0.129 <0.13948 600 -- --NaphthaleneNA NA NA NA NA <0.161 <0.874 <0.173 <0.192 <0.186 <0.2002.1 8.8 -- --Benzo(a)anthraceneN/A N/A N/A N/A N/A <0.155 <0.844 <0.1670.185 J<0.1790.292 J 1.1 21 -- --Benzo(a)pyreneN/A N/A N/A N/A N/A <0.164 <0.893 <0.177 <0.196 <0.1900.341 J 0.11 2.1 -- --Benzo(b)fluorantheneN/A N/A N/A N/A N/A <0.163 <0.886 <0.176 <0.194 <0.1880.388 J 1.1 21 -- --ChryseneN/A N/A N/A N/A N/A <0.158 <0.862 <0.171 <0.189 <0.1830.279 J 110 2,100 -- --FluorantheneN/A N/A N/A N/A N/A <0.137 <0.7470.171 J 0.467 J<0.1590.699 J 480 6,000 -- --PhenanthreneNA NA NA NA NA <0.232 <1.26 <0.2500.429 J<0.2690.541 J NE NE -- --PyreneN/A N/A N/A N/A N/A <0.149 <0.814 <0.1610.344 J<0.1730.557 J 360 4,500 -- --RCRA Metals (6010/6020/7471B/7199)ArsenicN/A N/A N/A N/A N/A0.761 1.49 1.47 2.16 1.25 1.38 0.68 3.0 1.0 - 18 4.8BariumN/A N/A N/A N/A N/A127 36.1 61.7 14.1 58.1 56.1 3,100 47,000 50 - 1,000 356CadmiumN/A N/A N/A N/A N/A0.0862 J 0.032 J 0.179 J 0.0312 J 0.066 J 0.0678 J 1.4 201.0 - 10 (3)4.3 (3)Chromium (Total)N/A N/A N/A N/A N/A22.7 19.6 20.2 64.5 81.6 34.8 NE NE 7.0 - 300 65Hexavalent ChromiumN/A N/A N/A N/A N/A0.520.24 J0.33 J0.50 J0.910.48 J0.31 6.5 NS NSLead 1.4 2.2 4.5 5.5 13.3 2.88 34.2 104 12.4 6.35 8.23 400 800 ND - 50 16MercuryN/A N/A N/A N/A N/A <0.01340.0490 0.0671 0.0599 0.0326 J 0.04714.7 70 0.03 - 0.52 0.121SeleniumN/A N/A N/A N/A N/A <1.26 <1.39 <1.40 <1.35 <1.40 <1.4778 1,200 <0.1 - 0.8 0.42Silver 1.4 2.2 4.5 5.5 13.3 0.43<0.04040.184 J<0.03930.0925 J<0.042978 1,200 ND - 5.0 NSTPH DRO (8015)<6.0 <5.8 <6.5 <6.9 <5.8 NA NA NA NA NA NANE NE -- --TPH GRO (8015/5030)NA NA NA NA NA NA NA NA NA NA NANE NE -- --C5-C8 Aliphatics (VPH)NA NA NA NA NA NA NA NA NA NA NA110 460 -- --C9-C18 Aliphatics (VPH & EPH)NA NA NA NA NA NA NA NA NA NA NA20 93 -- --C19-C36 Aliphatics (EPH)NA NA NA NA NA NA NA NA NA NA NA47,000 700,000 -- --C9-C22 Aromatics (VPH & EPH)NA NA NA NA NA NA NA NA NA NA NA20 120 -- --Notes:1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) (July 2022).2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005Underlined values exceed the DEQ Residential PSRGs (and the regional background concentrations for metals only).Gray highlighted values exceed the DEQ Industrial/Commercial PSRGs (and the regional background concentrations for metals only).Compound concentrations are reported to the laboratory method detection limits.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Compound concentrations are reported in milligrams per kilogram (mg/kg). Laboratory analytical methods are shown in parenthesesThe Phase I and Phase II Environmental Site Assessment Report by Genesis Project, Inc. dated May 26, 2015 indicates the D-4 soil sample was a composite. Information related to the sample depth is not available.Historical documentation is not available showing locations of samples DI-1 and L-1.VOCs = volatile organic compounds; SVOCs = semi-VOCs; RCRA = Resource Conservation and Recovery Act; TPH = Total Petroleum Hydrocarbons; DRO = Diesel Range Organics; GRO = Gasoline Range OrganicsVPH = Volatile Petroleum Hydrocarbons; EPH = Extractable Petroleum HydrocarbonsNE = not established; NA = not analyzed; ND = non-detect; UST= underground storage tank; -- = not applicable; ft bgs = feet below ground surface; N/A = not available; BQL= below quantitation limits; BDL = below detection limitsJ = estimated concentration between the laboratory method detection limit and the laboratory reporting limit.Published Background Metals Concentrations for North Carolina Soils (2)Residential PSRGs(1)Industrial / Commercial PSRGs(1)5/5/2015BF-SB-2/BF-SB-DUPAdjacent to Former Truack Repair Shop and Former Diesel USTsProposed Cut Area Near a Former Body Shop7/19/20224-6https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Alliance Residential Company (ALI)/ALI‐006 N. Tryon Street/EMP/Tables/Alliance Residential EMP Tables_JSH.xlsx 8/26/2022Table 1 (Page 3 of 3) Hart & Hickman, PC
Table 2Summary of Groundwater Analytical ResultsMcLaurin Trucking Company II2600 N. Tryon StreetCharlotte, North CarolinaH&H Job No. ALI-006Sample IDDMW-1 DMW-2 DMW-3 DMW-4 DMW-5 T-1 C-1 D-2 BF-TMW-1 BF-TMW-1 (Filtered) BF-TMW-2 BF-TMW-2 (Filtered)Location DescriptionUpgradient Portion of SiteFormer Dispenser IslandUpgradient Portion of SiteCross-Gradient Portion of SiteDate5/8/1998VOCs (8260/601/602)AcetoneN/AN/AN/AN/AN/AN/AN/AN/A2.59 J -- 4.11 J -- 2.22 J 3.11 J6,000 NE NEBenzeneN/AN/AN/AN/AN/A<1 <1 <1 <0.180--<0.180--<0.180 <0.1801.0 1.6 6.91,2-Dichloroethane2012020BDL2N/AN/AN/A<0.150--<0.150--<0.150 <0.1500.4 2.2 9.81,1-DichloroethyleneN/AN/AN/AN/AN/A<1 <16.4<0.150--<0.150--<0.1500.208 J35039160Diisopropyl ether 56460 40016 5 3.1<1 <1 <0.960--<0.960--<0.960 <0.96070 1,400 5,900EthylbenzeneN/AN/AN/AN/AN/A<1 <1 <1 <0.170--<0.170--<0.170 <0.170600 3.5 15Methyl-tert-Butyl Ether (MTBE)14BDL BDL BDL BDL1.0<1 <1<0.140-- 0.648 --<0.140 <0.14020 450 2,000TetrachloroethyleneN/AN/AN/AN/AN/A<189.3<1 <0.220--<0.220--<0.220 <0.2200.7 12 48TolueneN/AN/AN/AN/AN/A<1 <1 <1 <0.220--<0.220--<0.220 <0.220600 3,800 16,000Xylenes, totalN/A N/A N/A N/A N/A <2 <2 <2 <0.210 -- <0.210 -- <0.210 <0.21050077320SVOCS (8270E/625)ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL NA NA NAALL BDL -- ALL BDL -- ALL BDL ALL BDL -- -- --RCRA Metals (6020B/7470A)ArsenicNANANANANANANANA<1.17 <1.17 <1.17 <1.17 <1.17 <1.1710 -- --BariumNANANANANANANANA105 60.6 51.2 24.9 45.9 49.7700 -- --CadmiumNANANANANANANANA<0.107 <0.107 <0.107 <0.107 <0.107 <0.1072----ChromiumNANANANANANANANA18.6 2.49 J 12.3 2.07 J 2.03 J 2.41 J10 -- --Lead61BDL BDL BDL BDL NANANA2.38<0.6000.945 J<0.600 <0.6004.4615 -- --MercuryNANANANANANANANA<0.00007 <0.00007 <0.00007 <0.00007 <0.00007 <0.000071 0.18 0.75SeleniumNANANANANANANANA<1.36 <1.36 <1.36 <1.361.49 J<1.3620 -- --SilverNA NA NA NA NA NA NA NA<0.233 <0.233 <0.233 <0.233 <0.233 <0.23320 -- --TPH-DRO (8015)NA NA NA NA NA <0.50 <0.50 <0.50 NA NA NA NA NA NANE NE NEC5-C8 Aliphatics (VPH)BDL750 560BDL BDL NA NA NA NA NA NA NA NA NA400 NE NEC9-C18 Aliphatics (VPH & EPH)BDLBDLBDLBDLBDLNANANANANANANANANA700 NE NEC19-C36 Aliphatics (EPH)BDLBDLBDLBDLBDLNANANANANANANANANA10,000 NE NEC9-C22 Aromatics (VPH & EPH)BDLBDLBDLBDLBDLNANANANANANANANANA200 NE NENotes:2) NC DEQ Division of Waste Management (DWM) Residential Vapor Intrusion Groundwater Screening Level (GWSL; July 2022)3) NC DEQ DWM Non-Residential Vapor Intrusion GWSL (July 2022)Bold values exceed the DEQ 2L Standard.Underline values exceed the NC DEQ Residential GWSLGray highlighted values exceed the NC DEQ Non-Residential GWSLCompound concentrations are reported to the laboratory method detection limits.Compound concentrations are reported in micrograms per liter (µg/L).With the exception of metals, only constituents detected in at least one sample are shown in the table above.Laboratory analytical methods are shown in parentheses.VOCs = volatile organic compounds; SVOCs = semi-VOCs; RCRA = Resource Conservation and Recovery ActJ = estimated concentration between the laboratory method detection limit and the laboratory reporting limitNE = not established; UST = underground storage tank; -- = not applicable; N/A = not available; NA = not analyzed; BDL= below detection limitsResidential GWSLs(2)Non-Residential GWSLs(3)Former 5,000-Gallon Diesel USTBF-TMW-3/BF-TMW-DUP1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) (April 2022)7/1/1998 5/5/2015Downgradient Portion of SiteEstimated Location of Former Petroleum USTsEstimated Location of Former Diesel USTsSouthwestern Portion of Site7/20/20222L Standards(1)https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Alliance Residential Company (ALI)/ALI‐006 N. Tryon Street/EMP/Tables/Alliance Residential EMP Tables_JSH.xlsx8/26/2022Table 2 (Page 1 of 1) Hart & Hickman, PC
Table 3Summary of Soil Gas Analytical ResultsMcLaurin Trucking Company II2600 N. Tryon StreetCharlotte, North CarolinaH&H Job No. ALI-006Sample IDSG-1 SG-2 SG-3 SG-4 SG-5 SG-6 SG-7 SG-8 SG-9Date Collected2/23/2021 2/23/2021 2/23/2021 2/23/2021 2/23/2021 2/23/2021 2/24/2021 2/23/2021 2/23/2021UnitsVOCs by EPA Method TO-15Acetone 34.6 18.9 18.5 928 30.4 <11.9 11.9 35.8 27.4 15.4 16.7 NE NEBenzene 3.56 2.20 1.22 J<3.19 4.84 <3.19 7.19 J240 0.958 J 0.728 J 2.41 J 12 160Carbon Disulfide 5.65 J<1.56 1.80 J<31.1 15.7 <31.1 <7.78 6.41 J 2.06 J<1.56 7.20 J 4,900 61,000Chlorobenzene<0.166 <0.166 <0.166 <3.31 6.47 <3.31 <0.829 <0.331 <0.166 <0.166 <0.331 350 4,400Cyclohexane 1.93 J 3.14 J 1.24 J<17.2 4.34 <17.2 8.54 J 17.1 1.44 J 1.09 J 8.06 42,000 535,000Dichlorodifluoromethane 5.86 3.55 3.71 <8.21 5.04 <8.21 <2.05 <0.821 15.7 13.7 3.21 J 700 8,800Ethyl Acetate 1.47 J 1.57 J 0.739 J<4.97 <0.249 <4.97 <1.24 <0.497 <0.249 <0.249 <0.497 490 6,100Ethylbenzene 2.67 <0.187 0.881 J<3.73 4.86 <3.73 13.0<0.373 <0.187 <0.187 <0.373 37 4904-Ethyltoluene<0.266 <0.266 <0.266 <5.31 2.43 J<5.31 <1.33 <0.531 <0.266 <0.266 <0.531 NE NEn-Heptane 7.83 3.33 <0.193 685 18.4 <3.85 43.1 81.4 1.29 J<0.193 28.1 2,800 35,000n-Hexane 16.7 46.3 1.45 J18,200172 42.5 24.8 36.4 1.99 <0.254 9.89 4,900 61,000Isopropyl alcohol 46.5 66.1 J 3.26 J<3.34 4.25 J<3.34 9.67 J 3.53 J 7.69 7.01 4.26 J 1,400 18,000Methyl Ethyl Ketone (2-Butanone) 3.92 9.44 2.29 <5.90 6.96 <5.90 <1.47 8.73 <0.295 1.70 2.61 J 35,000 440,000Methyl Isobutyl Ketone (4-methyl-2-pentanone) 0.967 J 1.91 J<0.254 <5.08 <0.254 <5.08 <1.27 <0.508 <0.254 <0.254 <0.508 21,000 260,000Methylene Chloride 2.43 <0.382 1.10 J<7.64 <0.382 <7.64 <1.91 <0.764 1.84 3.91 <0.764 3,400 53,000Naphthalene3.43 2.97 3.31 <7.72 4.37 <7.72 14.3 155 3.09 2.95 14.2 2.8 36Propylene 81.4 <0.139 <0.139 <2.79 494 941 <0.697 <0.279 21.9 <0.139 32.6 21,000 260,000Styrene<0.149 <0.149 <0.149 <2.98 1.54 J<2.98 <0.746 12.0<0.149 <0.149 <0.298 7,000 88,000Tetrachloroethylene<0.441 <0.441 <0.441 <8.82 2.16 J<8.82 2,630<0.882 <0.441 <0.441 <0.882 280 3,500Tetrahydrofuran<0.209 2.50<0.209 <4.19 <0.209 <4.19 <1.05 <0.419 <0.209 <0.209 3.27 14,000 180,000Toluene 25.1 18.3 11.9 <15.1 38.2 27.7 J 190 151 1.76 J 1.52 J 11.2 35,000 440,000Trichlorofluoromethane 4.52 <0.433 2.62 J<8.65 <0.433 <8.65 <2.16 <0.865 14.5 13.0<0.865 NE NE1,1,2-Trichloro-1,2,2-trifluoroethane<0.529 <0.529 <0.529 767 <0.529 <10.6 <2.64 <1.06 <0.529 <0.529 <1.06 35,000 440,0001,2,4-Trimethylbenzene 5.18 2.28 J 1.28 J 326 10.2 <5.90 14.6 135 <0.295 <0.295 104 420 5,3001,3,5-Trimethylbenzene 1.14 J<0.261 <0.261 116 2.37 J<5.21 5.58 J 82.0<0.261 <0.261 114 420 5,300m,p-Xylenes 9.67 4.42 J 3.53 J 214 19.2 17.6 J 55.1 37.7 1.16 J 0.929 J 12.2 700 8,800o-Xylene 3.38 1.59 J 1.19 J 87.1 7.36 <3.65 13.6 12.9 <0.182 <0.182 8.2 700 8,800Xylene (total)13.1 6.01 J 4.72 J 301 26.6 17.6 J 68.7 50.6 1.16 J 0.929 J 20.4 700 8,800Notes:1) NC Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) dated July 2022.Compound concentrations are reported in micrograms per cubic meter (μg/m3).Compound concentrations are reported to the laboratory method detection limits.Bold indicates concentration exceeds Residential SGSL.Underline indicates concentration exceeds Non-Residential SGSL.Only those compounds detected in at least one sample are shown in the table above.VOCs = volatile organic compounds; NE = not establishedJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.Non-Residential SGSLs (1)2/23/2021SG-10 / SG-DUPµg/m3Residential SGSLs (1)8/26/2022https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Alliance Residential Company (ALI)/ALI‐006 N. Tryon Street/EMP/Tables/Alliance Residential EMP Tables_ABM_V2.xlsxTable 3 (Page 1 of 1)Hart & Hickman, PC
EXCAVATION AREA 1
EXCAVATION AREA 2
DMW-4
DMW-5
DMW-3
D-3
D-4
N. T
R
Y
O
N
S
T
R
E
E
T
N. CHU
R
C
H

S
T
R
E
E
T MA
T
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S
O
N

A
V
E
N
U
E
PARKING
DECK
COURTYARD
CLUBHOUSE
POOL
FORMER 5,000
GALLON DIESEL USTs
FORMER 10,000
GALLON DIESEL UST
SG-4
SG-3
SG-6SG-2
SG-1
SG-5
SG-7
SG-8
SG-10
SG-9
DMW-1
DMW-2
T-1 C-1
D-2
BF-SB-1/TMW-1
BF-TMW-3
BF-SB-2/TMW-2
BF-SB-5
BF-SB-4
BF-SB-3
S1A-2/R1A-2
S1A-1/R1A-1
S1B-1/R1B-1
S1B-2/R1B-2
FORMER 5,000
GALLON USTs
S2-1/R2-1
S2-2/R2-2
S2-3/R2-3
FORMER 4,000
GALLON UST
SW-4
PB-1
PB-2
PB-3 SW-1
SW-3
SW-2
GP-1
TB-4
SW-5
GP-2
SS-1
GP-3
GP-4
TB-6
TB-5
SS-2
GP-5
SW-6
PB-4
TB-3 PB-5
PB-6
SW-8TB-1
TB-2
SW-7GP-7
GP-8
SS-3
GP-6
GP-9
FIRST
EXCAVATION
BOUNDARY
SECOND
EXCAVATION
BOUNDARY
FORMER 5,000
GALLON DIESEL USTs
FORMER 10,000
GALLON DIESEL UST
REVISION NO. 0
JOB NO. ALI.006
DATE: 8-26-22
FIGURE NO. 2
SITE AND SAMPLE LOCATION MAP
LEGEND
SITE PROPERTY BOUNDARY
PARCEL BOUNDARY
TRIBUTARY TO LITTLE SUGAR CREEK
PROPOSED BUILDING FOOTPRINT
PROPOSED PARKING DECK
SOIL GAS SAMPLE LOCATION
GROUNDWATER SAMPLE LOCATION
SOIL AND GROUNDWATER SAMPLE
LOCATION
SOIL SAMPLE LOCATION
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
NOTES:
1.AERIAL IMAGERY AND BASE DATA OBTAINED FROM
MECKNLENBURG COUNTY GIS (2022).
2.PROPOSED DEVELOPMENT PLAN PROVIDED BY CLINE
DESIGN, DATED 4-1-2022.
MCLAURIN TRUCKING COMPANY II
2600 N. TRYON STREET
CHARLOTTE, NORTH CAROLINA
EXCAVATION AREA 1
1" = 20'
EXCAVATION AREA 2
1" = 20'
FORMER 5,000 AND 10,000 GALLON DIESEL UST EXCAVATION
1" = 20'S:\AAA-Master Projects\Alliance Residential Company (ALI)\ALI-006 N. Tryon Street\EMP\Figures\ALI-006_SLM.dwg, FIG 2 082622, 8/26/2022 12:15:22 PM, sperry

Appendix C

Vapor Intrusion Mitigation Design Drawings
Sheets VM-1, VM-2, VM-2A, and VM-3
UP
UP
UP
ELEC.
STG STG STG STG MEP MEP
CLUB ROOM
LOBBYSTG
FITNESS
COMPACTOR
MEP
MEP
STG STG
STGSTG
MEPMEPSTGSTGMEPMEP
LOBBYSTGSTG
STGSTG
STG STG
STAIR 100STAIR 200
STAIR 300
STAIR 400
LOADING
CO-WORKING
MAINTENENCE
692' - 0"
696' - 0"
3.50
6.12
MAIL
694' - 0"
694' - 0"
694' - 0"
694' - 0"
694' - 0"
694' - 0"
694' - 0"
694' - 0"696' - 0"
696' - 0"
STG STG
STGSTG
STG STG
STG STG
STG STG
STG
STG
STG
RAMP DOWNVARIES2'-0"2'-0"
RED HATCHED AREAINDICATES 5" SOG
BLUE HATCHEDAREA INDICATES 7"SOG SLOPE DOWN2'-0"
2'-0"2'-0"VARIES
VARIES2'-0"RED HATCHED AREAINDICATES 5" SOG
RED HATCHED AREA
INDICATES 5" SOG
MP-12
MP-9
MP-7
MP-5
MP-4
MP-2
MP-1
MP-6
MP-3
MP-16
MP-8MP-15
MP-14
MP-11
MP-18
MP-17
MP-20
MP-19
MP-10
MP-13
E-1
E-2E-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
H&H NO. ALI-006
VAPOR INTRUSION MITIGATION
PLAN 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 INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 1
DEVELOPER:
ALLIANCE
RESIDENTIAL, LLC
200 PROVIDENCE ROAD
SUITE 250
CHARLOTTE, NORTH CAROLINA
VM-1
PROFESSIONAL
APPROVALPROSE NODAN. TRYON AND MATHESON AVENUECHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 26018-22-060LEGEND
THICKENED SLAB
OUTDOOR OR OPEN AIR SPACE
EXTENT OF VAPOR BARRIER
HORIZONTAL COLLECTION PIPING
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH EXHAUST IDENTIFICATION NUMBER
2" DIA SOLID PVC PRESSURE MONITORING POINT WITH FLUSH-MOUNTED COVER
2" DIA SOLID PVC TEMPORARY PRESSURE MONITORING POINT WITH
FLUSH-MOUNTED COVER
MP-1
E-1
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-2, VM-2A, AND VM-3.
2.STANDARD SLIP JOINT OR SOLVENT WELDED SCH 40 PVC FITTINGS SHALL BE
USED ON HORIZONTAL COLLECTION PIPE.
3.THE INTAKE OF THE MONITORING POINTS SHALL BE A MINIMUM 5 FT FROM
EXTERIOR WALLS OR FOOTINGS.
DATE: 12-13-22
PROPOSED SUB-SLAB
SAMPLE LOCATION
PROPOSED SUB-SLAB
SAMPLE LOCATION
PROPOSED SUB-SLAB
SAMPLE LOCATION
PROPOSED SUB-SLAB
SAMPLE LOCATION
PROPOSED SUB-SLAB
SAMPLE LOCATION
PROPOSED SUB-SLAB
SAMPLE LOCATION
PROPOSED SUB-SLAB
SAMPLE LOCATION
PROPOSED SUB-SLAB
SAMPLE LOCATION
1
VM-2
17
VM-2A
16
VM-2A
2
VM-2
4
VM-2
4
VM-2
3
VM-2
3
VM-2
5
VM-2
5
VM-2
6
VM-2
8
VM-2
7
VM-2
9
VM-2
9
VM-2
10
VM-2
10
VM-2
10
VM-2
11
VM-2
12
VM-2
13
VM-2
15
VM-2A
18
VM-2A
19
VM-2A
21
VM-2A
21
VM-2A
22
VM-2
22
VM-2A
PROPOSED SUB-SLAB
SAMPLE LOCATION
PROPOSED SUB-SLAB
SAMPLE LOCATION
PROPOSED SUB-SLAB
SAMPLE LOCATION
PROPOSED SUB-SLAB
SAMPLE LOCATION
TMP-1
TMP-1
REVISIONS
REV DATE DESCRIPTION
0 10/14/22 ORIGINAL SUBMISSION
1 12/13/22 REVISION 1
S:\AAA-Master Projects\Alliance Residential Company (ALI)\ALI-006 N. Tryon Street\VIMS\Figures\ALI-006_VIMS_DRAFT.dwg, VM-1, 12/13/2022 5:06:04 PM, amckenzie
VIMS VAPOR BARRIER AND BASE COURSE (TYP)1
VAPOR BARRIER (SEE SPECIFICATION #2)
CONCRETE FLOOR SLAB
SUB-BASE
NTSVM-2
BASE COURSE - CLEAN # 57 STONE (WASHED
WITH NO FINES), MIN 5" THICK BENEATH VIMS
VAPOR BARRIER (SEE SPECIFICATION #2)
3" SCH 40 THREADED FLUSH JOINT
SLOTTED PVC PIPE SET WITHIN MIN 5"
BASE COURSE (SEE SPECIFICATION #3)
VAPOR BARRIER
SUB-BASE
CONCRETE FLOOR SLAB
SLOTTED COLLECTION PIPE (TYPICAL)2
NTSVM-2
PVC END CAP OR
TERMINATION SCREEN
(SEE SPECIFICATION #3)
VIMS VAPOR BARRIER AT INTERIOR THICKENED SLAB (TYP)
NTS
3
VM-2
CONCRETE
FLOOR SLAB
BASE COURSE
VAPOR BARRIER
SUB-BASE
WALL (VARIES)
BASE COURSE
SUB-BASE
VIMS PIPING THROUGH THICKENED SLAB (TYP)
NTS
4
VM-2
SOLID 3"
SCH 40 PVC
VAPOR BARRIER SEALED TO PIPE
PER MANUFACTURER INSTRUCTIONS
PROVIDE PIPE SUPPORT TO PREVENT
LOW POINT IN SOLID PIPE. MAINTAIN 1%
SLOPE TOWARD SLOTTED SECTION OF
PIPE (SEE SPECIFICATION #4)
VAPOR BARRIER
SOLID TO SLOTTED 3" SCH 40
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT)
WALL (VARIES)
PIPE SLEEVE
(SEE SPECIFICATION #12)
VIMS PIPING THROUGH INTERIOR RAMPS
NTS
8
VM-2
SLOPE
SUBBASE
VAPOR BARRIER
3" SCH 40 SLOTTED PVC PIPE
BASE COURSE
SOLID TO SLOTTED 3" SCH 40
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT)
VAPOR BARRIER SEALED TO
PIPE PER MANUFACTURER
INSTRUCTIONS
PIPE SLEEVE
VIMS AT VERTICAL RISERS WITH 90 DEGREE ELBOW (TYP)
NTS
9
VM-2
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 PER
MANUFACTURER INSTRUCTIONS VAPOR BARRIER
PROVIDE PIPE SUPPORT
TO PREVENT LOW
POINT IN SOLID PIPE
VIMS AT VERTICAL RISERS WITH PVC TEE (TYP)
NTS
10
VM-2
BASE COURSE
SUB-BASE
3" SCH 40 PVC RISER DUCT PIPE WALL (VARIES)
SLOTTED 3" SCH 40 PVC
VAPOR BARRIER SEALED TO PIPE PER
MANUFACTURER INSTRUCTIONS VAPOR BARRIER
3" SCH 40 PVC TEE
VIMS PIPING THROUGH DEPRESSIONS IN SLAB-ON-GRADE (TYP)
NTS
6
VM-2
SUB-BASE
CONCRETE FLOOR SLAB
MINIMUM 1% SLOPE TOWARD
SLOTTED SECTIONS
BASE COURSE
SOLID TO SLOTTED 3" SCH 40
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT)
3" SCH 40 PVC
45-DEGREE ELBOW
VAPOR BARRIER SEALED TO
PIPE PER MANUFACTURER
INSTRUCTIONS
SOLID 3" SCH 40 PVCPIPE SLEEVE
WALL (VARIES)
VAPOR BARRIER
SLOPE
VIMS AT SLAB THICKENING WITH PIPE (TYP)
NTS
7
VM-2
BASE COURSE
WALL (VARIES)
SUBBASE
VAPOR BARRIER
3" SCH 40 PVC
45-DEGREE ELBOW
3" SCH 40 SLOTTED PVC PIPE
VAPOR BARRIER
CMU WALL
VIMS PIPING THROUGH CMU WALL FOUNDATION (TYP)
NTS
5
VM-2
BASE COURSE
CONCRETE FLOOR SLAB
SOLID 3"
SCH 40 PVC
SOLID TO SLOTTED 3" SCH 40 PVC
PIPE TRANSITION (SLIP COUPLING
OR THREADED JOINT)
VAPOR LINER SEALED TO PIPE PER
MANUFACTURER INSTRUCTIONS
PROVIDE PIPE SUPPORT TO PREVENT LOW POINT IN SOLID PIPE.
MAINTAIN 1% SLOPE TOWARD SLOTTED SECTION OF PIPE
SUB-BASE
FOAM PIPE SLEEVE (SEE
SPECIFICATION #11)
VIMS AT INTERIOR COLUMN (TYP)
NTS
12
VM-2
SUB-BASE
CONCRETE FLOOR SLAB
BASE COURSE
VAPOR BARRIER
CONCRETE COLUMN
CONCRETE FOOTING
VAPOR BARRIER SEALED OUTSIDE
OF CONCRETE COLUMN PER
MANUFACTURER INSTRUCTIONS
SEE DETAIL
14/VM-2
VIMS AT EXTERIOR COLUMN (TYP)
NTS
13
VM-2
SUB-BASE
CONCRETE
FLOOR SLAB
BASE COURSE
VAPOR BARRIER
CONCRETE COLUMN
TERMINATE VAPOR BARRIER
AT SOIL GRADE, WHERE
APPLICABLE
SEE DETAIL 14/VM-2
VAPOR BARRIER SEALED
TO CONCRETE ON EACH
SIDE OF COLUMN
VIMS VERTICAL RISER AT COLUMN (TYP)
NTS
11
VM-2
CONCRETE COLUMN
VAPOR BARRIER SEALED OUTSIDE
OF CONCRETE COLUMN PER
MANUFACTURER INSTRUCTIONS
VAPOR BARRIER SEALED TO
PIPE PER MANUFACTURER
INSTRUCTIONS
SLOTTED 3" SCH 40 PVC
3" SCH 40 PVC
90-DEGREE ELBOW
3" SCH 40 PVC RISER DUCT PIPE
STUD WALL (WHERE PRESENT)
VIMS AT COLUMNS - EXPANSION DETAIL (TYP)
NTS
14
VM-2
COLUMN
CONCRETE FLOOR SLAB
VAPOR BARRIER SEALED TO CONCRETE
PER MANUFACTURERS INSTRUCTIONS
COLUMN EXPANSION FORM
(INSTALLED OVER VAPOR BARRIER)
VAPOR BARRIER
H&H NO. ALI-006
VAPOR INTRUSION MITIGATION
PLAN 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 INTRUSION
MITIGATION SYSTEM
DETAILS
DEVELOPER:
ALLIANCE
RESIDENTIAL, LLC
200 PROVIDENCE ROAD
SUITE 250
CHARLOTTE, NORTH CAROLINA
VM-2
PROFESSIONAL
APPROVAL
REVISIONS
REV DATE DESCRIPTION
0 10/14/22 ORIGINAL SUBMISSION
1 12/13/22 REVISION 1PROSE NODAN. TRYON AND MATHESON AVENUECHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 26018-22-060DATE: 12-13-22
S:\AAA-Master Projects\Alliance Residential Company (ALI)\ALI-006 N. Tryon Street\VIMS\Figures\ALI-006_VIMS_DRAFT.dwg, VM-2, 12/13/2022 5:08:52 PM, amckenzie
18
NTSVM-2A
VIMS AT ELEVATOR PIT (TYP)
CONTINUOUS VAPOR BARRIER SEALED
PER MANUFACTURER INSTRUCTIONS
SUMP PIT
SUB-BASE
BASE COURSE
VAPOR BARRIER
WATERPROOFING MEMBRANE
(IF PRESENT - REFER TO ARCH. PLANS)
(SEE SPECIFICATION #13)
SEE DETAIL 12/VM-2
VAPOR BARRIER SEALED TO OUTSIDE OF
CONCRETE AND WATERPROOFING MEMBRANE, IF
PRESENT, PER MANUFACTURER INSTRUCTIONS
(SEE DETAIL 21/VM-2A)
20
VM-2A NTS
VIMS AT SUB-GRADE VERTICAL WALL - WATERPROOFING DETAIL (TYP)
SOIL SUB-BASE
VAPOR BARRIER
DRAINAGE MAT
(IF PRESENT)
CONCRETE
WATERPROOFING MEMBRANE
(IF PRESENT - REFER TO ARCH. PLANS)
WALL (VARIES)
BASE COURSE
SUB-BASE
WALL (VARIES)
VAPOR BARRIER AT SLAB EDGE17
NTSVM-2A
VAPOR BARRIER
VAPOR BARRIER SHALL EXTEND ALONG
FOOTER EXTERIOR, IF POSSIBLE, AT
LOCATIONS WHERE EXTERIOR GRADE IS
HIGHER THAN INTERIOR GRADE
FINISHED FLOOR SLAB
2" SCH 40 PVC SET WITHIN GRAVEL LAYER
2" DRAIN EXPANSION TEST PLUG
VIMS MONITORING POINT - TYPICAL DETAIL VIEW
NTS
21
VM-2A
VAPOR BARRIER PENETRATION SEALED TO
PIPE PER MANUFACTURER INSTRUCTIONS
2" SCH 40 PVC 90 DEGREE ELBOW
FLOOR CLEANOUT, ADJUSTABLE, 4" DIA ZURN
INDUSTRIES MODEL #CO2450-PV4 (OR ENGINEER
APPROVED EQUIVALENT) FLUSH WITH FINISHED FLOOR
BASE COURSE
4" x 2" FLUSH REDUCER
BUSHING
2" PVC TERMINATION
SCREEN OR END CAP
(SEE SPECIFICATION #7)
BASE COURSE
FLOOR CLEANOUT, ADJUSTABLE,
4" DIA ZURN INDUSTRIES
MODEL #CO2450-PV4 (OR ENGINEER
APPROVED EQUIVALENT)
SEE DETAIL 12/VM-A
FLUSH WITH
FINISHED FLOOR
PROVIDE PIPE SUPPORT TO PREVENT LOW POINT
IN SOLID SECTION OF PIPE. MAINTAIN MINIMUM
1% 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-2A
PVC VENTED ENDCAP
2" SCH 40 PVC 90-DEGREE
ELBOWVAPOR BARRIER PENETRATION SEALED
TO PIPE PER MANUFACTURER
INSTRUCTIONS
WALL (VARIES)
VAPOR BARRIER EXTENDED TO
EXTERIOR SIDE OF FOOTER NO MORE
THAN 6-INCHES BELOW FINISHED
GRADE WHERE POSSIBLE
VAPOR BARRIER AT STAIR THICKENED SLAB (IF APPLICABLE)15
NTS
STAIR STRINGER
SUBBASE
BASE COURSE
VM-2A
CONCRETE FLOOR
SLAB
VAPOR BARRIER
SOLID TO SLOTTED 3" SCH 40
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT)
VAPOR BARRIER SEALED TO
PIPE PER MANUFACTURER
INSTRUCTIONS
VIMS AT UTILITY BANK (TYP)23
NTSVM-2A
INSTALL VAPOR BARRIER AS
CLOSELY AS POSSIBLE TO EACH
PENETRATION PRIOR TO
APPLICATION OF SEALANT
SEALANT SET AROUND UTILITY
BANKS WITHIN DAM (e.g. RAVEN
POUR 'N SEAL OR MASTIC WITH 2"
MIN OVERLAP WITH VAPOR BARRIER
(SEE SPECIFICATION #10)
SUB-BASE
BASE COURSE
VAPOR BARRIER CONCRETE SLAB
VIMS TURBINE VENTILATOR FAN & EXHAUST (TYPICAL)24
NTS
TURBINE VENTILATOR FAN
(EMPIRE MODEL TV04SS OR ENGINEER
APPROVED EQUIVALENT)
ELECTRICAL JUNCTION BOX FOR POTENTIAL FUTURE
VACUUM FAN (REFER TO SPECIFICATION #5)
RISER DUCT PIPE THROUGH ROOF
FLASHING
ROOFTOP
VM-2A
4" HEAVY DUTY NO HUB
COUPLING
VIMS PARKING DECK SPINE WALL FOOTING (TYP)
NTS
16
VM-2A
BASE COURSE
VAPOR BARRIER
VAPOR BARRIER SEALED TO OUTSIDE
OF CONCRETE AND WATERPROOFING
MEMBRANE (IF PRESENT) PER
MANUFACTURER INSTRUCTIONS - SEE
DETAIL 21/VM-2A
SUB-BASE
VAPOR BARRIER SEALED OUTSIDE
OF CONCRETE WALL PER
MANUFACTURER INSTRUCTIONS
OCCUPIED SPACE
OCCUPIED SPACE
VIMS AT STAIRWELL WITH PIPE CONNECTION (TYP)
NTS
19
VM-2A
SUB-BASE
BASE COURSE
VAPOR LINER
VAPOR LINER SEALED TO OUTSIDE OF CONCRETE
AND WATERPROOFING MEMBRANE (WHERE
PRESENT) PER MANUFACTURER INSTRUCTIONS
(SEE DETAIL 22/VM-2A)
WATERPROOFING AND
RIGID INSULATION
DRAIN
WALL (VARIES)
CONCRETE
FLOOR SLAB
SOLID TO SLOTTED 3" SCH 40 PVC
PIPE TRANSITION (SLIP COUPLING
OR THREADED JOINT)
3" SCH 40 PVC
90-DEGREE ELBOW
VAPOR LINER SEALED TO PIPE
PER MANUFACTURER
INSTRUCTIONS
3" SCH 40 PVC
45-DEGREE ELBOW
PIPE SLEEVE
H&H NO. ALI-006
VAPOR INTRUSION MITIGATION
PLAN 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 INTRUSION
MITIGATION SYSTEM
DETAILS
DEVELOPER:
ALLIANCE
RESIDENTIAL, LLC
200 PROVIDENCE ROAD
SUITE 250
CHARLOTTE, NORTH CAROLINA
VM-2A
PROFESSIONAL
APPROVALPROSE NODAN. TRYON AND MATHESON AVENUECHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 26018-22-060DATE: 12-13-22
REVISIONS
REV DATE DESCRIPTION
0 10/14/22 ORIGINAL SUBMISSION
1 12/13/22 REVISION 1
S:\AAA-Master Projects\Alliance Residential Company (ALI)\ALI-006 N. Tryon Street\VIMS\Figures\ALI-006_VIMS_DRAFT.dwg, VM-2A, 12/13/2022 5:09:48 PM, amckenzie
H&H NO. ALI-006
VAPOR INTRUSION MITIGATION
PLAN 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 INTRUSION
MITIGATION SYSTEM
SPECIFICATIONS
DEVELOPER:
ALLIANCE
RESIDENTIAL, LLC
200 PROVIDENCE ROAD
SUITE 250
CHARLOTTE, NORTH CAROLINA
VM-3
PROFESSIONAL
APPROVALPROSE NODAN. TRYON AND MATHESON AVENUECHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 26018-22-060DATE: 12-13-22
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.
2.VIMS VAPOR BARRIER SHALL BE VAPORBLOCK PLUS 20 (VBP20) 20-MIL VAPOR LINER MANUFACTURED BY RAVEN INDUSTRIES (RAVEN). AS AN ALTERNATIVE, DRAGO WRAP 20-MIL VAPOR INTRUSION BARRIER MANUFACTURED BY STEGO INDUSTRIES, LLC (STEGO) CAN BE USED, PENDING APPROVAL BY THE ENGINEER.
THE VAPOR BARRIER SHALL BE INSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER INSTALLATION INSTRUCTIONS TO CREATE A CONTINUOUS LINER BELOW MITIGATED AREAS, AND ALONG RETAINING WALLS AND SLAB-ON-GRADE FOLDS WITHIN THE EXTENT OF VAPOR LINER BOUNDARY. A MINIMUM 5-INCH THICK BASE COURSE
CONSISTING OF CLEAN #57 STONE (WASHED WITH NO FINES) SHALL BE INSTALLED BENEATH THE VIMS VAPOR LINER. 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 LINER
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 ALONG 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 INSTALLED OVER THE VAPOR BARRIER.
2.6.THE INTERFACE OF THE STEEL OR CONCRETE 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.
3.SUB-SLAB SLOTTED VAPOR COLLECTION PIPE SHALL BE 3" SCH 40 PVC PIPE WITH 0.020" TO 0.060" SLOT WIDTH AND 1/8" SLOT SPACING. AN ALTERNATE SLOT PATTERN, 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 DESIGN 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 5” 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 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.
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 TURBINE VENTILATOR (OR ALTERNATE APPROVED BY DESIGN 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.
5.2.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.
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 DESIGN 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 SET WITHIN THE BASE COURSE LAYER.
7.1.THE HORIZONTAL PIPING SHALL BE SLOPED A MINIMUM OF 1/8 UNIT VERTICAL BY 12 UNITS HORIZONTAL (1% SLOPE) 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 5-FT FROM EXTERIOR FOOTERS.
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 DESIGN ENGINEER.
7.4.THE END OF THE PIPE SHALL CONTAIN A PVC TERMINATION SCREEN, OR HAVE A MINIMUM OF THREE 5
8" DIA HOLES DRILLED INTO A SOLID CAP, SHALL HAVE VENT SLOTS WITH MINIMUM 1 SQUARE INCH OF OPEN AREA. AN OPEN PIPE MAY USED PER APPROVAL OF THE DESIGN ENGINEER.
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 WITH APPROVAL FROM THE DESIGN 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 LINER, 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 LINER. 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 LINER WHERE POSSIBLE. IF TEMPORARY FORM BOARDS ARE USED, THE SIZE AND NUMBER OF PENETRATIONS THROUGH THE VAPOR LINER 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 LINER 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 RAVEN POUR N'SEAL OR STEGO-INDUSTRIES MASTIC PRIOR TO THE SLAB POUR. OTHER SEALANT METHODS IF USED SHALL BE
APPROVED BY THE DESIGN 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 DESIGN 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; (5) INSPECTION OF ABOVE-GRADE PIPING LAYOUT; AND (6)
INSPECTION OF VENTILATOR AND RISER DUCT PIPE CONNECTIONS. INSPECTIONS WILL BE COMBINED WHEN POSSIBLE DEPENDING ON THE CONSTRUCTION SEQUENCE/SCHEDULE. THE CONSTRUCTION CONTRACTOR(S) SHALL COORDINATE WITH THE ENGINEER TO PERFORM THE REQUIRED INSPECTIONS. A MINIMUM 48-HOUR NOTICE
SHALL BE GIVEN TO THE ENGINEER AND DEQ PRIOR TO THE REQUIRED INSPECTION(S).
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.
REVISIONS
REV DATE DESCRIPTION
0 10/14/22 ORIGINAL SUBMISSION
1 12/13/22 REVISION 1
S:\AAA-Master Projects\Alliance Residential Company (ALI)\ALI-006 N. Tryon Street\VIMS\Figures\ALI-006_VIMS_DRAFT.dwg, VM-3, 12/13/2022 5:11:33 PM, amckenzie

Appendix D

Product Specification Sheets & Installation Instructions

PRODUCT PART #
VaporBlock® Plus™ 20 ................................................................ VBP20
UNDER-SLAB VAPOR / GAS BARRIER
Under-Slab Vapor/Gas Retarder
© 2018 RAVEN INDUSTRIES INC. All rights reserved.
VAPORBLOCK® PLUS™VBP20
PRODUCT DESCRIPTION
VaporBlock® Plus™ is a seven-layer co-extruded barrier
made using high quality virgin-grade polyethylene and
EVOH resins to provide unmatched impact strength as well
as superior resistance to gas and moisture transmission.
VaporBlock® Plus™ 20 is more than 100 times less permeable
than typical high-performance polyethylene vapor retarders
against Methane, Radon, and other harmful VOCs. Tested and
verified for unsurpassed protection against BTEX, HS, TCE, PCE,
methane, radon, other toxic chemicals and odors.
VaporBlock® Plus™ 20 multi-layer gas barrier is manufactured
with the latest EVOH barrier technology to mitigate hazardous
vapor intrusion from damaging indoor air quality, and the safety
and health of building occupants. VBP20 is one of the most
effective underslab gas barriers in the building industry today
far exceeding ASTM E-1745 (Plastic Water Vapor Retarders
Used in Contact with Soil or Granular Fill Under Concrete Slabs)
Class A, B and C requirements. Available in a 20 (Class A) mil
thicknesses designed to meet the most stringent requirements.
VaporBlock® Plus™ 20 is produced within the strict guidelines
of our ISO 9001 Certified Management System.
PRODUCT USE
VaporBlock® Plus™ 20 resists gas and moisture migration
into the building envelop when properly installed to provide
protection from toxic/harmful chemicals. It can be installed as
part of a passive or active control system extending across the
entire building including floors, walls and crawl spaces. When
installed as a passive system it is recommended to also include
a ventilated system with sump(s) that could be converted to an
active control system with properly designed ventilation fans.
VaporBlock® Plus™ 20 works to protect your flooring and
other moisture-sensitive furnishings in the building’s interior
from moisture and water vapor migration, greatly reducing
condensation, mold and degradation.
SIZE & PACKAGING
VaporBlock® Plus™ 20 is available in 10’ x 150’ rolls to
maximize coverage. All rolls are folded on heavy-duty cores
for ease in handling and installation. Other custom sizes
with factory welded seams are available based on minimum
volume requirements. Installation instructions and ASTM E-1745
classifications accompany each roll.
APPLICATIONS
Radon Barrier
Methane Barrier
VOC Barrier
Brownfields Barrier
Vapor Intrusion Barrier
Under-Slab Vapor Retarder
Foundation Wall Vapor Retarder
VaporBlock® Plus™ is a seven-layer co-extruded barrier made using high quality virgin-grade polyethylene and EVOH resins to provide unmatched impact strength as well as superior resistance to gas and moisture transmission.
VaporBlock® Plus™ Placement
All instructions on architectural or structural drawings should be reviewed and followed.
Detailed installation instructions accompany each roll of VaporBlock® Plus™ and can also be located at www.ravenefd.com.
ASTM E-1643 also provides general installation information for vapor retarders.
VAPORBLOCK® PLUS™ 20
PROPERTIES TEST METHOD IMPERIAL METRIC
AppeArAnce White/Gold
Thickness, nominAl 20 mil 0.51 mm
WeighT 102 lbs/MSF 498 g/m²
clAssificATion ASTM E 1745 CLASS A, B & C
³ Tensile sTrengTh
ASTM E 154Section 9(D-882)58 lbf 102 N
impAcT resisTAnce ASTM D 1709 2600 g
permeAnce (neW mATeriAl)
ASTM E 154Section 7ASTM E 96Procedure B
0.0098 Perms
grains/(ft²·hr·in·Hg)
0.0064 Perms
g/(24hr·m²·mm Hg)
permeAnce (AfTer condiTioning)
(sAme meAsuremenT As Above permeAnce)
ASTM E 154Section 8, E96Section 11, E96Section 12, E96Section 13, E96
0.00790.00790.00970.0113
0.00520.00520.00640.0074
WvTr ASTM E 96Procedure B 0.0040 grains/hr-ft²0.0028 gm/hr-m²
benzene permeAnce See Note ⁶1.13 x 10-¹⁰ m²/sec or 3.62 x 10-¹³ m/s
Toluene permeAnce See Note ⁶1.57 x 10-¹⁰ m²/sec or 1.46 x 10-¹³ m/s
eThylbenzene permeAnce See Note ⁶1.23 x 10-¹⁰ m²/sec or 3.34 x 10-¹⁴ m/s
m & p-Xylenes permeAnce See Note ⁶1.17 x 10-¹⁰ m²/sec or 3.81 x 10-¹⁴ m/s
o-Xylene permeAnce See Note ⁶1.10 x 10-¹⁰ m²/sec or 3.43 x 10-¹⁴ m/s
hydrogen sulfide See Note 9 1.92E-⁰⁹ m/s
TrichloroeThylene (Tce) See Note ⁶7.66 x 10-¹¹ m²/sec or 1.05 x 10-¹⁴ m/s
perchloroeThylene (pce)See Note ⁶7.22 x 10-¹¹ m²/sec or 1.04 x 10-¹⁴ m/s
rAdon diffusion coeffiecienT K124/02/95 < 1.1 x 10-13 m2/s
meThAne permeAnce ASTM D 1434 3.68E-¹² m/sGas Transmission Rate (GTR):0.32 mL/m²•day•atm
mAXimum sTATic use TemperATure 180° F 82° C
minimum sTATic use TemperATure - 70° F - 57° C
UNDER-SLAB VAPOR / GAS BARRIER
VAPORBLOCK® PLUS™VBP20
© 2018 RAVEN INDUSTRIES INC. All rights reserved.
Scan QR Code to download current technical data sheets via the Raven website.
Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be performed for applicability in specific applications and/or conditions. RAVEN INDUSTRIES MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at www.RavenEFD.com
061318 EFD 1125
RAVEN ENGINEERED FILMSP.O. Box 5107 Sioux Falls, SD 57117-5107Ph: [phone] • TF: [phone] [e-mail]
³ Tests are an average of machine and transverse directions.5 Raven Industries performs seam testing at 20” per minute.6 Aqueous Phase Film Permeance. Permeation of Volatile Organic Compounds through EVOH Thin Film Membranes and Coextruded LLDPE/EVOH/
LLDPE Geomembranes, McWatters and Rowe, Journal of Geotechnical and Geoenvironmental Engineering© ASCE/
September 2015. (Permeation is the Permeation Coefficient adjusted to actual film thickness - calculated at 1 kg/m³.)
The study used to determine PCE and TCE is titled: Evaluation of diffusion of PCE & TCE through high performance geomembranes by Di
Battista and Rowe, Queens University 8 Feb 2018.9 The study used to determine diffusion coefficients is titled: Hydrogen Sulfide (H₂S) Transport through Simulated Interim Covers with Conventional and Co-Extruded Ethylene-Vinyl Alcohol (EVOH) Geomembranes.
INSTALLATION GUIDELINES - With VaporSeal™ Tape
VaporSeal™
4” Tape
VaporSeal™ 4” Tape Optional Butyl Seal
2-Sided Tape
Gas Barrier Applications
Elements of a moisture/gas-resistant floor system. General illustration only.(Note: This example shows multiple options for waterstop placement.
VaporSeal™
4” Tape
VaporSeal™ 4” Tape Optional Butyl Seal
2-Sided Tape
Gas Barrier Applications
Fig. 2: VaporBlock® Plus™ Overlap Joint Sealing Methods
Fig. 1: VaporBlock® Plus™ Overlapping Roll-out Method
Please Note: Read these instructions thoroughly before installation to ensure proper use of VaporBlock® Plus™. ASTM E 1465, ASTM E 2121 and, ASTM E 1643 also provide valuable information regarding the installation of vapor / gas barriers. When installing this product, contractors shall conform to all applicable local, state and federal regulations and laws pertaining to residential and commercial building construction.
• When VaporBlock® Plus™ gas barrier is used as part of an active control system for radon or other gas, a ventilation system will be required.
• If designed as a passive system, it is recommended to install a ventilation system that could be converted to an active system if needed.
Materials List:VaporBlock® Plus™ Vapor / Gas BarrierVaporSeal™* 4” Seaming TapeVaporSeal™* 12” Seaming/Repair TapeButyl Seal 2-Sided TapeVaporBoot Plus Pipe Boots 12/Box (recommended)VaporBoot Tape (optional)POUR-N-SEAL™ (optional)1” Foam Weather Stripping (optional)Mako® Screed Supports (optional)
VAPORBLOCK® PLUS™ PLACEMENT
1.1. Level and tamp or roll granular base as specified. A base for a gas-reduction system may require a 4” to 6” gas permeable layer of clean coarse aggregate as specified by your architectural or structural drawings after installation of the recommended gas collection system. In this situation, a cushion layer consisting of a non-woven geotextile fabric placed directly under VaporBlock® Plus™ will help protect the barrier from damage due to possible sharp coarse aggregate.
1.2. Unroll VaporBlock® Plus™ running the longest dimension parallel with the direction of the pour and pull open all folds to full width. (Fig. 1)
1.3. Lap VaporBlock® Plus™ over the footings and seal with Raven Butyl Seal tape at the footing-wall connection. Prime concrete surfaces, when necessary, and assure they are dry and clean prior to applying Raven Butyl Seal Tape. Apply even and firm pressure with a rubber roller. Overlap joints a minimum of 6” and seal overlap with 4” VaporSeal™ Tape. When used as a gas barrier, overlap joints a minimum of 12” and seal in-between overlap with an optional 2-sided Raven Butyl Seal Tape. Then seal with 4” VaporSeal™ Tape centered on the overlap seam. (Fig. 2)
Page 1 of 4 T�������������������������������� by the Portland Cement Association.Reference: Kanare, Howard M., Concrete Floors and Moisture, EB119, Portland Cement Association, Skokie, Illinois, and National Ready Mixed Concrete Association, Silver Spring, Maryland, USA, 2008, 176 pages.
1.4. Seal around all plumbing, conduit, support columns or other penetrations that come through the VaporBlock® Plus™ membrane.
1.4a. Method 1: Pipes four inches or smaller can be sealed with Raven VaporBoot Plus preformed pipe boots. VaporBoot Plus preformed pipe boots are formed in steps for 1”, 2”, 3” and 4” PVC pipe or IPS size and are sold in units of 12 per box (Fig. 3 & 5).
Pipe boots may also be fabricated from excess VaporBlock® Plus™ membrane (Fig. 4 & 6) and sealed with VaporBoot Tape or VaporSeal™ Tape (sold separately).
1.4b. Method 2: To fabricate pipe boots from VaporBlock® Plus™ excess material (see Fig. 4 & 6 for A-F):
A) Cut a square large enough to overlap 12” in all directions.
B) Mark where to cut opening on the center of the square and cut four to eight slices about 3/8” less than the diameter of the pipe.
C) Force the square over the pipe leaving the tightly stretched cut area around the bottom of the pipe with approximately a 1/2” of the boot material running vertically up the pipe. (no more than a 1/2” of stretched boot material is recommended)
D) Once boot is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in between the two layers. Secure boot down firmly over the membrane taking care not to have any large folds or creases.
E) Use VaporBoot Tape or VaporSeal™ Tape to secure the boot to the
pipe.
VaporBoot Tape (option) – fold tape in half lengthwise, remove half of the release liner and wrap around the pipe allowing 1” extra for overlap sealing. Peel off the second half of the release liner and work the tape outward gradually forming a complete seal.
VaporSeal™ Tape (option) - Tape completely around pipe overlapping the VaporBlock® Plus™ square to create a tight seal against the pipe.
F) Complete the process by taping over the boot perimeter edge with VaporSeal™ Tape to create a monolithic membrane between the surface of the slab and gas/moisture sources below and at the slab perimeter. (Fig. 4 & 6)
Preformed Pipe Boot Square Material Pipe Boot
Fig. 3
SINGLE PENETRATION PIPE BOOT INSTALLATION
Fig. 5 Fig. 6
1. Cut a square of VaporBlock® Plus™ barrier to extend at least 12” from the pipe in all directions.
2. Cut four to eight slices about 3/8” less than the diameter of the pipe.
5. Use Raven VaporBoot or VaporSeal™ Tape and overlap 1” at the seam.
4. Tape over the boot perimeter edge with VaporSeal™ Tape.
1. Cut out one of the preformed boot steps (1” to 4”).
2. Tape the underside boot perimeter with 2-sided Butyl Seal Tape.
3. Force the boot over pipe and press tape firmly in place.
4. Use VaporSeal™ Tape
to secure boot to the pipe.
5. Tape around entire boot edge with VaporSeal™ Tape.
VaporBoot Flexible Tapeor VaporSeal™ 4” TapeVaporSeal™ 4” Tape
VaporBlock® Plus™Material
VaporSeal™ 4” Tape
Raven Butyl Seal2-Sided Tape Raven Butyl Seal2-Sided Tape
VaporBoot PlusPreformed Boot 12”(minimum)
3. Force over pipe and tape the underside boot perimeter to existing barrier with 2-sided Butyl Seal Tape.
Fig. 4
Page 2 of 4 ��������������������������������ortland Cement Association.Reference: Kanare, Howard M., Concrete Floors and Moisture, EB119, Portland Cement Association, Skokie, Illinois, and National Ready Mixed Concrete Association, Silver Spring, Maryland, USA, 2008, 176 pages.Method 1
Method 2
VaporSeal™4” Tape VaporBoot PlusPerformed Boot
Raven Butyl Seal 2-sided Tape Raven Butyl Seal 2-sided Tape
1.5. Sealing side-by-side multiple penetrations (option 1);
A) Cut a patch large enough to overlap 12” in all directions (Fig. 7)
of penetrations.
B) Mark where to cut openings and cut four to eight slices about
3/8” less than the diameter of the penetration for each.
C) Force patch material over penetration to achieve a tight fit and
form a lip.
D) Once patch is positioned, seal the perimeter to the membrane
by applying 2-sided Raven Butyl Seal Tape in-between the two
layers. (Fig. 8)
E) After applying Raven Butyl Seal Tape between the patch and
membrane, tape around each of the penetrations and the patch
with VaporSeal™ 4” tape. (Fig. 9) For additional protection apply
POUR-N-SEAL™ or an acceptable polyurethane elastomeric
sealant around the penetrations. (Fig. 10)
Fig. 7 Fig. 8
Fig. 9 Fig. 10
MULTIPLE PENETRATION PIPE BOOT INSTALLATION
Fig. 6
Cut a patch large enough to overlap 12” in all directions and slide over penetrations (Make openings as tight as possible.)
Once the overlay patch is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in-between the two layers.
After applying Raven Butyl Seal Tapebetween the patch and membrane, tape around the perimeter of the penetration and the patch with VaporSeal™ 4” Tape.
For additional protection apply POUR-N-SEAL™ or an acceptable polyurethane elastomeric sealant around the penetrations.
VaporSeal™ 4” Tape VaporSeal™ 4” Tape
Page 3 of 4
Option 1
Raven Butyl Seal 2-sided Tape
1.6. POUR-N-SEAL™ method of sealing side-by-side multiple penetrations (option 2);
A) Install the vapor barrier as closely as possible to pipe penetrations to minimize the amount of POUR-N-SEAL™ necessary to seal around all penetrations.
B) Once barrier is in place, remove soil or other particles with a dry cloth or a fine broom to allow for improved adhesion to the POUR-N-SEAL™ liquid.
C) Create a dam around the penetration area approximately 2” away from the pipe or other vertical penetrations by removing the release liner from the back of a 1” weather stripping foam and adhere to the vapor barrier. Form a complete circle to contain the POUR-N-SEAL™ materials (Fig. 11).
D) Once mixed, pour contents around the pipe penetrations. If needed, a brush or a flat wooden stick can be used to direct the sealant completely around penetrations creating a complete seal (Fig. 12-13).
E) DO NOT leave excess POUR-N-SEAL™ in plastic container for longer than the time it takes to pour sealant.
Fig. 12 Fig. 13
Fig. 11
Option 2
VAPORBLOCK® PLUS™ REPAIR INSTRUCTIONS
1.7. Proper installation requires all holes and openings are repaired prior
to placing concrete. When patching small holes, simply cut a 12” long
piece of 12” wide VaporSeal™ tape. Remove release liner and center
over the opening. Apply pressure to create a seal (Fig. 14-15).
1.8. When installing VaporBlock® Plus™ around pipe penetrations,
vertical columns, electrical ducts and other obstructions, you will
find it necessary to cut it to the nearest outside edge. This cut can
be easily sealed with 12” wide VaporSeal™ tape, by simply centering
it over the cut, 6” on either side. Once the tape is placed correctly,
apply pressure to assure a complete seal (Fig. 16).
Reminder Note: All holes or penetrations through the membrane will need
to be patched with 12” VaporSeal™ Tape.
Fig. 14
Page 4 of 5
Fig. 15
2.1. When installing reinforcing steel and utilities, in addition to the
placement of concrete, take precaution to protect VaporBlock®
Plus™. Carelessness during installation can damage the most
puncture–resistant membrane. Sheets of plywood cushioned with
geotextile fabric temporarily placed on VaporBlock® Plus™ provide
for additional protection in high traffic areas including concrete
buggies.
2.2. Use only brick-type or chair-type reinforcing bar supports to protect
VaporBlock® Plus™ from puncture.
2.3. Avoid driving stakes through VaporBlock® Plus™. If this cannot be
avoided, each individual hole must be repaired per section 1.7.
2.4. To avoid penetrating VaporBlock® Plus™ when installing screed
supports, utilize non-penetrating support, such as the Mako®
Screed Support System (Fig. 17). Avoid driving stakes through
VaporBlock® Plus™. If this cannot be avoided, each individual hole
must be repaired per figures 14-15.
2.5. If a cushion or blotter layer is required in the design between
VaporBlock® Plus™ and the slab, additional care should be given if
sharp crushed rock is used. Washed rock will provide less chance of
damage during placement. Care must be taken to protect blotter layer
from precipitation before concrete is placed.
VaporBlock® Plus™ Gas & Moisture Barrier can be identified on site
as gold/white in color printed in black ink with following logo and
classification listing (Fig. 18)
Page 5 of 5
VaporBlock® Plus™
Gas & Moisture Barrier
Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be performed for applicability in specific applications and/or conditions. RAVEN INDUSTRIES MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at wwww.RavenEFD.com
ENGINEERED FILMSP.O. Box 5107 Sioux Falls, SD 57117-5107Ph: [phone] • TF: [phone]
[e-mail]
020316 EFD 1127
VAPORBLOCK® PLUS™ PROTECTION
Fig. 16
Fig. 18
Fig. 17
* Patent Pending
© Raven 2016. All Rights Reserved.
P1 OF 2
DRAGO® WRAPVAPOR INTRUSION BARRIER
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019
1. PRODUCT NAME
DRAGO WRAP VAPOR INTRUSION BARRIER
2. MANUFACTURER
c/o Stego® Industries, LLC*
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. PRODUCT DESCRIPTION
TABLE 4.1: PHYSICAL PROPERTIES OF DRAGO WRAP VAPOR INTRUSION BARRIER
PROPERTY TEST RESULTS
Under Slab Vapor Retarders ASTM E1745 – Standard Specification for Water Vapor Retarders Used in Contact with Soil or Granular Fill under Concrete Slabs ASTM E1745 Compliant
Water Vapor Permeance ASTM F1249 – Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor 0.0069 perms
Push-Through Puncture ASTM D4833 – Test Method for Index Puncture Resistance of Geotextiles, Geomembranes, and Related Products 183.9 Newtons
Tensile Strength ASTM D882 – Test Method for Tensile Properties of Thin Plastic Sheeting 53.5 lbf/in
Permeance After Conditioning ASTM E154 Section 8, F1249 – Permeance after wetting, drying, and soaking 0.0073 perms(ASTM E1745 ASTM E154 Section 11, F1249 – Permeance after heat conditioning 0.0070 permsSections 7.1.2 - 7.1.5) ASTM E154 Section 12, F1249 – Permeance after low temperature conditioning 0.0062 perms ASTM E154 Section 13, F1249 – Permeance after soil organism exposure 0.0081 perms
Hydrocarbon Attenuation Factors Contact Stego Industries’ Technical Department
Chlorinated Solvent Attenuation Factors Contact Stego Industries’ Technical Department
Methane Transmission Rate ASTM D1434 – Test Method for Determining Gas Permeability Characteristics of 7.0 GTR** Plastic Film and Sheeting (mL(STP)/m2*day)
Radon Diffusion Coefficient K124/02/95 9.8 x 10-14 m2/second
Thickness 20 mil
Roll Dimensions 14' x 105' or 1,470 ft2
Roll Weight 150 lb
Note: perm unit = grains/(ft2*hr*in-Hg) ** GTR = Gas Transmission Rate
USES: Drago Wrap is specifically engineered to attenuate volatile organic compounds (VOCs) and serve as a below-slab
moisture vapor barrier.
COMPOSITION: Drago Wrap is a multi-layered plastic extrusion that combines uniquely designed materials with only
high grade, prime, virgin resins.
ENVIRONMENTAL FACTORS: Drago Wrap can be used in systems for the control of various VOCs including hydrocarbons,
chlorinated solvents, radon, methane, soil poisons, and sulfates.
4. TECHNICAL DATA
Continued... Note – legal notice on page 2.
DRAGO® WRAPVAPOR INTRUSION BARRIER
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019
DATA SHEETS ARE SUBJECT TO CHANGE. FOR MOST CURRENT VERSION, VISIT WWW.STEGOINDUSTRIES.COM
[phone] | www.stegoindustries.com
*Stego Industries, LLC (“Stego”) is the exclusive Representative for Drago Wrap and Pango Wrap. All designated trademarks are the intellectual property
of Stego or the entity for which it is acting as a Representative. Installation, Warranty, State Approval Information and Disclosure of Representative Status: www.stegoindustries.com/legal. ©2019 Stego Industries, LLC. All rights reserved.
5. INSTALLATION
UNDER SLAB: Unroll Drago Wrap over a tamped aggregate, sand, or earth base. Overlap all seams a minimum of 12
inches and tape using Drago® Tape. All penetrations must be sealed using a combination of Drago Wrap and Drago
Accessories.
Review Drago Wrap’s complete installation instructions prior to installation.
6. AVAILABILITY & COST
Drago Wrap is available nationally through our network of building supply distributors. For current cost information,
contact your local Drago distributor or Stego Industries’ Sales Representative.
7. WARRANTY
Stego Industries, LLC believes to the best of its knowledge, that specifications and recommendations herein are
accurate and reliable. However, since site conditions are not within its control, Stego Industries does not guarantee
results from the use of the information provided and disclaims all liability from any loss or damage. Stego Technology,
LLC does offer a limited warranty on Drago Wrap. Please see www.stegoindustries.com/legal.
8. MAINTENANCE
Store Drago Wrap in a dry and temperate area.
9. TECHNICAL SERVICES
Technical advice, custom CAD drawings, and additional information can be obtained by contacting Stego Industries or
by visiting the website.
Contact Number: [phone]
Website: www.stegoindustries.com
10. FILING SYSTEMS
• www.stegoindustries.com
P2 OF 2
INSTALLATIONINSTRUCTIONS
DRAGO® WRAP
VAPOR INTRUSION BARRIER
Engineered protection to create a healthy built environment.
2. Unroll Drago Wrap over the area where the slab is to be placed.
Drago Wrap should completely cover the concrete placement
area. All joints/seams should be overlapped a minimum of
12 inches and taped using Drago® Tape. (Fig. 1). If additional
protection is needed, install DragoTack™ Tape in between the
overlapped seam in combination with Drago Tape on top of the
seam.
NOTE: The area of adhesion should be free from dust, dirt, moisture,
and frost to allow maximum adhesion of the pressure-sensitive tape. Ensure that all seams are taped with applied pressure to allow for
maximum and continuous adhesion of the pressure-sensitive Drago Tape. Adhesives should be installed above 40°F. In temperatures
below 40°F, take extra care to remove moisture/frost from the area
of adhesion.
3. ASTM E1643 requires sealing the perimeter of the slab. Extend
vapor retarder over footings and seal to foundation wall or
grade beam at an elevation consistent with the top of the slab
or terminate at impediments such as waterstops or dowels.
Consult the structural and environmental engineer of record
before proceeding.
IMPORTANT: Please read these installation instructions completely, prior to beginning any Drago Wrap installation. The following 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. There are specific instructions in this document that go beyond what is stated in
ASTM E1643 to take into account vapor intrusion mitigation. If project specifications call for compliance with ASTM E1643, then be sure to review
the specific installation sections outlined in the standard along with the techniques referenced in these instructions.
DRAGO TAPE
Minimum 12” overlap
VAPOR INTRUSION BARRIER
Fig.1: UNDER-SLAB INSTALLATION
DRAGO® WRAP VAPOR INTRUSION BARRIERINSTALLATION INSTRUCTIONS
UNDER-SLAB INSTRUCTIONS:
FOOTING
DRAGOTACK TAPE
VAPOR INTRUSION BARRIER
Fig.2a: SEAL TO PERIMETER WALL Fig. 2b: SEAL TO FOOTING
FOOTING
DRAGOTACK TAPE
VAPOR INTRUSION BARRIER
SEAL TO PERIMETER WALL OR FOOTING WITH DRAGOTACK
TAPE: (Fig. 2a and 2b)
a. Make sure area of adhesion is free of dust,
dirt, debris, moisture, and frost to allow
maximum adhesion.
b. Remove release liner on one side and stick to
desired surface.
c. When ready to apply Drago Wrap, remove the
exposed release liner and press firmly against
DragoTack Tape to secure.
d. If a mechanical seal is needed, fasten a
termination bar over the top of the Drago Wrap
inline with the DragoTack Tape.
NOTE: If sealing to the footing, the footing should receive
a hand float finish to allow for maximum adhesion.
1. Drago Wrap has been engineered to be installed over a tamped aggregate, sand, or 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.
NOTE: Drago Wrap must be installed with the gray facing the subgrade.
P2 of 4
Continued ... Note - legal notice on last page.
DETAIL PATCH FOR PIPE PENETRATION SEALING: (Fig. 4b)a. Install Drago Wrap around pipe penetrations by slitting/cutting material as needed. Try to minimize void space
created.
b. If Drago Wrap is close to pipe and void space is minimized, proceed to step d.
c. If void space exists, then
i. Cut a detail patch to a size and shape that creates a 6-inch overlap on all edges around the void space at
the base of the pipe.
ii. Cut an “X” slightly smaller than the size of the pipe diameter in the center of the detail patch and slide
tightly over pipe.
iii. Tape the edges of the detail patch using Drago Tape.
d. Seal around the base of the pipe using Drago Tape and/or Drago Sealant and Drago Sealant Form.
i. If Drago Sealant is used to seal around pipe, make sure Drago Wrap is flush with the base of the
penetration prior to pouring Drago Sealant.
5. IMPORTANT: ALL PENETRATIONS MUST BE SEALED. All pipe, ducting, rebar, and block outs should be sealed using
Drago Wrap, Drago Tape, and/or Drago® Sealant and Drago® Sealant Form. (Fig. 4a). Drago accessories should be
sealed directly to the penetrations.
DRAGO TAPE
DAMAGED AREA
DRAGO TAPE DRAGO TAPE
SMALL HOLE
VAPOR INTRUSION BARRIER
VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER
Fig. 3: SEALING DAMAGED AREAS
4. In the event that Drago Wrap is damaged during or after installation, repairs must be made. Cut a piece of Drago Wrap
to a size and shape that covers any damage by a minimum of 6 inches in all directions. Clean all adhesion areas of dust,
dirt, moisture, and frost. Tape down all edges using Drago Tape. (Fig. 3)
MINIMAL VOID SPACE CREATED
DRAGO SEALANTDRAGO TAPE
OR DRAGO SEALANT FORM
VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER
Fig. 4a: PIPE PENETRATION SEALING
DRAGO TAPE
LARGE VOID SPACE CREATED
DRAGO SEALANTDRAGO TAPE
OR DRAGO SEALANT FORM
VAPOR INTRUSION BARRIERVAPOR INTRUSION BARRIERVAPOR INTRUSION BARRIER
VAPOR INTRUSION BARRIER
Fig. 4b: DETAIL PATCH FOR PIPE PENETRATION SEALING
Continued ... Note - legal notice on last page.
P3 of 4
DRAGO® WRAP VAPOR INTRUSION BARRIERINSTALLATION INSTRUCTIONS
STEGO INDUSTRIES, LLC • SAN CLEMENTE, CA • 949-257-4100 • 877-464-7834 • www.stegoindustries.com
*Stego Industries, LLC (“Stego”) is the exclusive Representative for Drago Wrap and Pango Wrap. All designated trademarks are the intellectual property of Stego or the entity for which it is acting as a Representative. Installation, Warranty, State Approval Information and Disclosure of Representative Status: www.stegoindustries.com/legal. ©2019 Stego Industries, LLC. All rights reserved. 11/2019
NOTE: While Drago Wrap 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 products, please call us at 877-464-7834 for technical assistance. While Stego Industries’ 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.
MULTIPLE PIPE PENETRATION SEALING: (Fig. 5)
NOTE: Multiple pipe penetrations in close proximity may be most efficiently sealed using Drago Wrap, Drago
Sealant, and Drago Sealant Form for ease of installation.
a. Cut a hole in Drago Wrap such that the membrane fits over and around the base of the pipes as closely as
possible, ensuring that it is flush with the base of the penetrations.
b. Install Drago Sealant Form continuously around the entire perimeter of the group of penetrations and at least
1 inch beyond the terminating edge of Drago Wrap.
c. Pour Drago Sealant inside of Drago Sealant Form to create a seal around the penetrations.
d. 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.
IMPORTANT: AN INSTALLATION COMPLETED PER THESE INSTRUCTIONS SHOULD CREATE A MONOLITHIC MEMBRANE
BETWEEN ALL INTERIOR INTRUSION PATHWAYS AND VAPOR SOURCES BELOW THE SLAB AS WELL AS AT THE SLAB
PERIMETER. THE UNDERLYING SUBBASE SHOULD NOT BE VISIBLE IN ANY AREA WHERE CONCRETE WILL BE PLACED. IF
REQUIRED BY THE DESIGN ENGINEER, ADDITIONAL INSTALLATION VALIDATION CAN BE DONE THROUGH SMOKE TESTING.
Stego Industries* recommends the use of BEAST vapor barrier-safe concrete accessories, to help eliminate the use of non-permanent penetrations in Drago Wrap installations.
MINIMAL VOID SPACE CREATED
DRAGO SEALANT
DRAGO SEALANT FORM DRAGO SEALANT FORM DRAGO SEALANT FORM
DRAGO SEALANT
VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER
Fig. 5: MULTIPLE PIPE PENETRATION SEALING
BEAST® CONCRETE ACCESSORIES - VAPOR BARRIER SAFE
BEAST® SCREED BEAST® HOOK
P3 of 4
BEAST® FORM STAKE
Locate itand lock it down!Improve efficiency and maintain concrete floor levelness with the BEAST SCREED SYSTEM!
The Stego barrier-safe forming system that prevents punctures in the vapor barrier.
P1 OF 2
DRAGO® TAPE
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 11/27/2019
1. PRODUCT NAME
DRAGO TAPE
2. MANUFACTURER
c/o Stego® Industries, LLC*
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. PRODUCT DESCRIPTION
USES: Drago Tape is a low-permeance tape designed for protective sealing, seaming, splicing, and patching applications
where a highly conformable material is required. It has been engineered to bond specifically to Drago® Wrap Vapor
Intrusion Barrier, making it ideal for sealing Drago Wrap seams and penetrations.
COMPOSITION: Drago Tape is a multi-layered plastic extrusion that combines uniquely designed materials with only
high grade, prime, virgin resins, and an acrylic, pressure-sensitive adhesive.
SIZE: Drago Tape is 3.75" x 180'. Drago Tape ships 12 rolls in a case.
4. TECHNICAL DATA
APPLICABLE STANDARDS:
Pressure Sensitive Tape Council (PSTC)
• PSTC 101 – International Standard for Peel Adhesion of Pressure Sensitive Tape
• PSTC 107 – International Standard for Shear Adhesion of Pressure Sensitive Tape
American Society for Testing & Materials (ASTM)
• 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.
TABLE 4.1: PHYSICAL PROPERTIES OF DRAGO TAPE
PROPERTY TEST RESULTS
Total Thickness 8 mil
Permeance ASTM F1249 0.031 perms
Tensile Strength MD ASTM D882 20.5 lbf/in
Elongation (at break) MD ASTM D882 702%
180° Peel Adhesion PSTC 101 20-min dwell to Drago Wrap 50.1 oz/in
PSTC 101 24-hour dwell to Drago Wrap 92.9 oz/in
Shear Adhesion PSTC 107 24-hour dwell (1" x 1", 1kg/wt) to Drago Wrap 188 minutes
Note: perm unit = grains/(ft2*hr*in-Hg)
Continued... Note – legal notice on page 2.
DRAGO® TAPE
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 11/27/2019
DATA SHEETS ARE SUBJECT TO CHANGE. FOR MOST CURRENT VERSION, VISIT WWW.STEGOINDUSTRIES.COM
[phone] | www.stegoindustries.com
*Stego Industries, LLC (“Stego”) is the exclusive Representative for Drago Wrap and Pango Wrap. All designated trademarks are the intellectual property
of Stego or the entity for which it is acting as a Representative. Installation, Warranty, State Approval Information and Disclosure of Representative Status: www.stegoindustries.com/legal. ©2019 Stego Industries, LLC. All rights reserved.
5. INSTALLATION
SEAMS: Overlap Drago Wrap a minimum 12 inches and seal with Drago Tape. Make sure the area of adhesion is free
from dust, moisture and frost to allow maximum adhesion of the pressure-sensitive tape.
PIPE PENETRATION SEALING:
• Install Drago Wrap around pipe by slitting/cutting material.
• If void space is minimal, seal around base of pipe with Drago Tape and/or Drago® Sealant and Drago® Sealant Form.
DETAIL PATCH FOR PIPE PENETRATION SEALING:
• Cut a piece of Drago Wrap that creates a 6 inch overlap around all edges of the void space.
• Cut an “X” slightly smaller than the size of the pipe diameter in the center of the detail patch.
• Slide detail patch over pipe, secure tightly.
• Tape down all sides of detail patch with Drago Tape.
• Seal around base of pipe with Drago Tape and/or Drago Sealant and Drago Sealant Form.
Drago Tape should be installed above 40°F. In temperatures below 40°F, take extra care to remove moisture or frost
from the area of adhesion. Ensure that the entirety of all seams are taped with applied pressure to allow for maximum
and continuous adhesion of the pressure-sensitive Drago Tape.
Review Drago Wrap’s complete installation instructions prior to installation.
6. AVAILABILITY & COST
Drago Tape is available nationally through our network of building supply distributors. For current cost information,
contact your local Drago distributor or Stego Industries’ Sales Representative.
7. WARRANTY
Stego Industries, LLC believes to the best of its knowledge, that specifications and recommendations herein are
accurate and reliable. However, since site conditions are not within its control, Stego Industries does not guarantee
results from the use of the information provided and disclaims all liability from any loss or damage. Stego Technology,
LLC does offer a limited warranty on Drago Wrap. Please see www.stegoindustries.com/legal.
8. MAINTENANCE
Store Drago Tape in a dry and temperate area.
9. TECHNICAL SERVICES
Technical advice, custom CAD drawings, and additional information can be obtained by contacting Stego Industries or
by visiting the website.
Contact Number: [phone]
Website: www.stegoindustries.com
10. FILING SYSTEMS
• www.stegoindustries.com
P2 OF 2
P1 OF 2
DRAGOTACK™ TAPE
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019
1. PRODUCT NAME
DRAGOTACK TAPE
2. MANUFACTURER
c/o Stego® Industries, LLC*
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. PRODUCT DESCRIPTION
TABLE 4.1: PHYSICAL PROPERTIES OF DRAGOTACK TAPE
PROPERTY TEST RESULTS
Dimensions 2" x 50'
Total Thickness 30 mil
Color Grey
Material Synthetic rubber blend
Permeance ASTM F1249 0.03 perms (30 mil) Adhesion to Steel ASTM D1000 12.5 lbs/in width
Chemical Resistance No significant change to(TCE, PCE, Toluene, Xylene) ASTM D471 / D543 mass or volume.
Installation Temperature 40°F / 110°
In Service Temperature Range -20°F / +140°F
VOC Content No VOCs, 100% solids
Note: perm unit = grains/(ft2*hr*in-Hg)
USES: DragoTack Tape is a solvent-resistant, double-sided adhesive strip used to bond and seal Drago® Wrap Vapor
Intrusion Barrier to concrete, masonry, wood, metal, and other surfaces. DragoTack Tape is a flexible and moldable
material to allow for a variety of applications and installations.
COMPOSITION: DragoTack Tape is made from a solvent-resistant blend of synthetic rubber and resins.
SIZE: DragoTack Tape is 2" x 50'. DragoTack Tape ships 12 rolls in a case.
4. TECHNICAL DATA
Continued... Note – legal notice on page 2.
DRAGOTACK™ TAPE
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019
DATA SHEETS ARE SUBJECT TO CHANGE. FOR MOST CURRENT VERSION, VISIT WWW.STEGOINDUSTRIES.COM
[phone] | www.stegoindustries.com
*Stego Industries, LLC (“Stego”) is the exclusive Representative for Drago Wrap and Pango Wrap. All designated trademarks are the intellectual property
of Stego or the entity for which it is acting as a Representative. Installation, Warranty, State Approval Information and Disclosure of Representative Status: www.stegoindustries.com/legal. ©2019 Stego Industries, LLC. All rights reserved.
5. INSTALLATION
TO WALLS AND FOOTINGS: Make sure the area of adhesion is free of dust, dirt, debris, moisture, and frost to allow
maximum adhesion. Remove release liner on one side and stick to desired surface. When ready to apply Drago Wrap,
remove the exposed release liner and press Drago Wrap firmly against DragoTack Tape to secure.
Cut DragoTack Tape using a utility knife or scissors. Cut DragoTack Tape before removing the release liner for easier
cutting. Install DragoTack Tape between 40°F and 110°F.
Review Drago Wrap’s complete installation instructions prior to installation.
6. AVAILABILITY & COST
DragoTack Tape is available nationally through our network of building supply distributors. For current cost information,
contact your local Drago distributor or Stego Industries’ Sales Representative.
7. WARRANTY
Stego Industries, LLC believes to the best of its knowledge, that specifications and recommendations herein are
accurate and reliable. However, since site conditions are not within its control, Stego Industries does not guarantee
results from the use of the information provided and disclaims all liability from any loss or damage. Stego Technology,
LLC does offer a limited warranty on Drago Wrap. Please see www.stegoindustries.com/legal.
8. MAINTENANCE
Store DragoTack Tape in a dry and temperate area.
9. TECHNICAL SERVICES
Technical advice, custom CAD drawings, and additional information can be obtained by contacting Stego Industries or
by visiting the website.
Contact Number: [phone]
Website: www.stegoindustries.com
10. FILING SYSTEMS
• www.stegoindustries.com
P2 OF 2
P1 OF 2
DRAGO® SEALANT FORM
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019
1. PRODUCT NAME
DRAGO SEALANT FORM
2. MANUFACTURER
c/o Stego® Industries, LLC*
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. PRODUCT DESCRIPTION
USES: Drago Sealant Form is used in conjunction with Drago® Sealant to help create an efficient and effective seal
around pipe penetrations in Drago® Wrap Vapor Intrusion Barrier.
COMPOSITION: Drago Sealant Form is a low-density, cross-linked, closed-cell polyethylene foam with an acrylic,
pressure-sensitive adhesive.
SIZE: Drago Sealant Form is ½" x ½" x 24". Drago Sealant Form comes in 200 pieces per case (10 boxes of 20 pieces).
4. TECHNICAL DATA
TABLE 4.1: PHYSICAL PROPERTIES OF DRAGO SEALANT FORM
PROPERTY RESULTS
Dimensions ½” x ½” x 24”
Color White
Weight 0.11 oz (3.1 grams)
Continued... Note – legal notice on page 2.
5. INSTALLATION
PENETRATIONS: Make sure the area of adhesion is free of dust, debris, moisture, and frost to allow maximum adhesion.
When ready to apply to Drago Wrap, remove the release liner and press Drago Sealant Form firmly against Drago Wrap
to secure. Install Drago Sealant Form continuously around the entire perimeter of the penetration(s) and at least 1 inch
beyond the terminating edge of Drago Wrap. Install Drago Sealant Form between 40°F and 110°F. Pour Drago Sealant
inside of Drago Sealant Form to create a seal around the penetration(s).
Review Drago Wrap’s complete installation instructions prior to installation.
6. AVAILABILITY & COST
Drago Sealant Form is available nationally through our network of building supply distributors. For current cost
information, contact your local Drago distributor or Stego Industries’ Sales Representative.
DRAGO® SEALANT FORM
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019
DATA SHEETS ARE SUBJECT TO CHANGE. FOR MOST CURRENT VERSION, VISIT WWW.STEGOINDUSTRIES.COM
[phone] | www.stegoindustries.com
*Stego Industries, LLC (“Stego”) is the exclusive Representative for Drago Wrap and Pango Wrap. All designated trademarks are the intellectual property
of Stego or the entity for which it is acting as a Representative. Installation, Warranty, State Approval Information and Disclosure of Representative Status: www.stegoindustries.com/legal. ©2019 Stego Industries, LLC. All rights reserved.
7. WARRANTY
Stego Industries, LLC believes to the best of its knowledge, that specifications and recommendations herein are
accurate and reliable. However, since site conditions are not within its control, Stego Industries does not guarantee
results from the use of the information provided and disclaims all liability from any loss or damage. Stego Technology,
LLC does offer a limited warranty on Drago Wrap. Please see www.stegoindustries.com/legal.
8. MAINTENANCE
Store Drago Sealant Form in a dry and temperate area.
9. TECHNICAL SERVICES
Technical advice, custom CAD drawings, and additional information can be obtained by contacting Stego Industries or
by visiting the website.
Contact Number: [phone]
Website: www.stegoindustries.com
10. FILING SYSTEMS
• www.stegoindustries.com
P2 OF 2
Soil Gas Collector Mat PDS 05-140-1
Safety data for our custom-formed, high-impact polystyrene core is shown below.
RECOMMENDED MAXIMUM OCCUPATIONAL EXPOSURE LIMITS
PHYSICAL DATA FIRE HANDLING MEASURES
ECOLOGICAL INFORMATION & DISPOSAL
Component CAS No. Exposure Limits Hazard Data
OSHA—Pel.
Polystyrene 9003-55-6 None established No hazardous ingredients
Properties Data
Form Molded Sheet
Color Black
Odor None
Boiling Point Not applicable
Melting Point (°F) 270
Flash Point (°F) Not applicable
Flammable Limits (°F) Not applicable
VOC 0%
Volatility <0.75% Moisture
Specific gravity 1.02–1.08
Solubility in Water Not soluable
Properties
Extinguishing Media
Fire Fighting Procedure
Properties
Ecological information
Toxicological
Disposal
Data
Water Spray (except when fire is of electrical origin), Foam, Dry powder, CO2
Self-contained breathingapparatus & suitable protective equipment
Data
Not associated with any
known ecological problems
No negative effects on
humans
Polystyrene recycles well.
Can be disposed of as
solid waste or burned
in a suitable installation
subject to local regulations.
Effluents disposal should
also be in accordance
with local legislation.
www.soilgasmat.com 719-444-0646 [e-mail]
Product Materials
& Safety Information
Made inthe USA
Perfect for Radon Control Systems in new home construction
The economical alternative to aggregate systems—quick and easy installation
STABILITY & REACTIVITY
SPECIAL HANDLING INFORMATION
Properties Data
Stablitity Stable
Incompatibility (Materials to avoid) Can react with strong oxidixers
Hazardous Decomposition Carbon dioxide, carbon monoxide, various hydrocarbons
Conditions to avoid None
Description Information
Handling & Storage Precaution Protect against flame & intense heat. Avoid breathing hot vapors.
Eye Protection, Recommended Use OSHA approved safety glasses when handling
Skin Wash with soap & water. Get medical attention if irritation develops
or persists.
Other Clothing & Equipment Gloves recommended due to sharp edges.
Work Practices, Hygiene Use standard work practices for hygienic safety.
Handling & Storage, Other Store in well-ventillated area. Avoid extreme heat & sources of ignition or
open flame.
Protective Measures, Maintenance Not applicable
www.soilgasmat.com 719-444-0646 [e-mail]
To the best of our knowledge, the information presented herein is accurate.However, it is not a warranty or a guarantee and is provided for reference only.
Soil Gas Collector Mat PDS 05-140-1
The economical alternative to aggregate systems—quick and easy installation
CUSPATED PLASTIC
COVER FABRIC
Material Physical Properties
Property Test Method Value
Specific Gravity (g/cc) ASTM D-792 1.04
Melt Flow @ 200°C/5000g (g/10 min) ASTM D-1238 2.5
Tensile Strength @ Yield (psi) ASTM D-638 2,900
Tensile Modulus (psi) ASTM D-638 275,000
Elongation @ Break (%) ASTM D-638 70
Flexural Modulus (psi) ASTM D-790 300,000
Impact Strength, Notched Izod @ 73°F (ft-lb/in) ASTM D-256 2.1
Heat Deflection Temperature @ 264 psi (°F) ASTM D-648 183
Vicat Softening Point (°F) ASTM D-1525 210
Property Test Method Value
Grab Tensile (lbs) ASTM D4632 130
Elongation (%) ASTM D4632 > 50
Trapezoid Tear (lbs) ASTM D4533 60
Puncture (lbs) ASTM D4833 41
Mullen Burst (psi) ASTM D3786 140
AOS (U.S. sieve number) ASTM D4571 70
Permittivity (sec-1) ASTM D4491 0.8
Permeability (cm/sec) ASTM D4491 0.04
Water Flow (gal/min/sf) ASTM D4491 60
UV Stability (%) ASTM D4355 70
www.soilgasmat.com 719-444-0646 [e-mail]
Product
Data Sheet
Made inthe USA
Perfect for Radon Control Systems in new home construction
The economical alternative to aggregate systems—quick and easy installation
www.soilgasmat.com 719-444-0646 [e-mail]
To the best of our knowledge, the information presented herein is accurate.However, it is not a warranty or a guarantee and is provided for reference only.
BINDING METHOD
Material Physical Properties CONTINUED
Property Test Method Value
External Binder Standard Sewn
Type Stitching Standard Lock Stitch
Type Thread Standard HB92 Nylon
Tensile Strength (lbs) ASTM D4632 11
Thread Gage Standard 2 IOx4 denier
Chemically Impervious Standard MI Natural
Soil Gas Collector Mat PDS 05-140-1
Safety data for our non-woven, spun-bonded, polypropylene, gray geotextile fabric is shown below.
PHYSICAL DATA FIRE HANDLING MEASURES
ECOLOGICAL INFORMATION & DISPOSAL
Properties Data
Form Molded Sheet
Color Black
Odor None
Boiling Point Not applicable
Melting Point (°F) 270
Flash Point (°F) Not applicable
Flammable Limits (°F) Not applicable
Auto ignition temperature Not applicable
Vapor Pressure (Pascal) Not volatile
Density (g/cm3) @20 ºC 0.91
Solubility in Water Not soluable
Thermal decomposition (ºF) Above 570
Properties
Extinguishing Media
Fire Fighting Procedure
Properties
Ecological information
Toxicological
Disposal
Data
Water Spray (except when fire is of electrical origin), Foam, Dry powder of CO2
Self-contained breathingapparatus & suitable protective equipment
Data
Not associated with any
known ecological problems
No negative effects on
humans
Polystyrene recycles well.
Can be disposed of as
solid waste or burned
in a suitable installation
subject to local regulations.
Effluents disposal should
also be in accordance
with local legislation.
www.soilgasmat.com 719-444-0646 [e-mail]
Product Materials
& Safety Information
RECOMMENDED MAXIMUM OCCUPATIONAL EXPOSURE LIMITS
Component CAS No. Exposure Limits Hazard Data
OSHA—Pel.
Polystyrene 9003-07-0 None established No hazardous ingredients
Made inthe USA
Perfect for Radon Control Systems in new home construction
The economical alternative to aggregate systems—quick and easy installation
STABILITY & REACTIVITY
SPECIAL HANDLING INFORMATION
Properties Data
Stablitity Stable
Incompatibility (Materials to avoid) Can react with strong oxidixers, base, or acid
Hazardous Decomposition Carbon dioxide, carbon monoxide, low molecular weight oxygenated organic
Conditions to avoid None
Description Information
Handling & Storage Precaution Avoid breathing hot vapors, oiled mists, and airborne fibers.
Eye Protection, Recommended Use OSHA approved safety glasses when handling rolls
Skin Wash with soap & water. Get medical attention if irritation develops
or persists.
Other Clothing & Equipment Not applicable
Work Practices, Hygiene Use standard work practices for hygienic safety.
Handling & Storage, Other Store rolls In accordance with good material handling practice
Protective Measures, Maintenance Not applicable
www.soilgasmat.com 719-444-0646 [e-mail]
To the best of our knowledge, the information presented herein is accurate.However, it is not a warranty or a guarantee and is provided for reference only.
Soil Gas Collector Mat PDS 05-140-1
Our non-woven, spun-bonded, polypropylene, gray geotextile fabric with the minimum
values shown below.
www.soilgasmat.com 719-444-0646 [e-mail]
Product Materials—
Technical Specifications
& Performance
Property Test Method Value
Grab Tensile Strength (lbs) ASTM D 4632 130
Elongation (%) ASTM D 4632 >50
Trapezoid Tear (lbs) ASTM D 4533 60
Puncture (lbs) ASTM D 4833 41
Mullen Burst (psi) ASTM D 3786 140
AOS (U.S. sieve no.) ASTM D 4751 70
Permittivity (sec-1) ASTM D 4491 0.8
Permeability (cm/sec) ASTM D 4491 0.04
Vertical Water Flow Rate (gal/min/sf) ASTM D 4491 60
UV Stability (%) ASTM D 4355 70
Made inthe USA
Soil Gas Collector Mat PDS 05-140-1
Our custom-formed, high-impact polystyrene core with the minimum values shown below.
www.soilgasmat.com 719-444-0646 [e-mail]
Product Materials—
Technical Specifications
& Performance
Properties Test Method Value
Specific Gravity ASTM D 792 1.04
Melt Flow (g/10min) ASTM D 1238 2.5
Tensile @ Yield (psi) ASTM D 638 2900
Tensile Modulus (psi) ASTM D 638 275,000
Elongation @ Break (%) ASTM D 638 70
Flexural Modulus (psi) ASTM D 790 300,000
Notched Izod @ 73ºF (ft-lb/in) ASTM D 256 2.1
HDT @ 264 psi (ºF) ASTM D 648 183
Vicat Softening Point (ºF) ASTM D 1525 210
Made in
the USA
SOIL GAS COLLECTOR MAT
Installation Guide
Radon Ready New Construction
Time-saving, low-cost solution
Easy Installation
Reduce Liability!
Used in all 50 states and
Internationally
Compliant under multiple codes:
AARST-ANSI, ASTM,
IRC Appendix F,
EPA, HUD, and more!
Simple, modern solution for soil
gases: radon, vapor, and VOCs
www.RadonMat.comPhotos, videos, & more @
MADE IN THE USA
SOIL GAS COLLECTOR MAT FOR RADON READY NEW CONSTRUCTION
According to the US EPA’s model stan-dards for radon control systems in new building construction, a means for col-lecting soil gas should be installed be-neath the slab.
More and more mitigators and buildiers are using PDS’ soil gas collector mat because its installation does not entail any special coordination with plumb-ers or other site contractors. Low pro-file mat saves time as it removes the need for trenching. Just lay radon mat down around the inside perimeter of the foundation, secure it with spikes or landscaping staples, and pour the con-crete.
SGC mat is superior to other mat sys-tems because of its thickness and it has a geotextile fabric cloth surround-ing the entire mat material. This fea-ture eliminates the need to lay a plas-tic barrier or sheet on top of the mat to protect the matrix. Using plastic sheeting can cause concrete cracking due to differential dewatering. The full fabric design greatly enhances both the installation as well as the quality of the concrete slab. When SGC mat is in-stalled below the slab, you’re providing an airspace that intercepts radon--and other soil gases and vapors--before it seeps into the building through the slab. SGC mat also works well as a soil gas collector beneath crawlspace bar-rier due to its low-profile.
WHY & HOW IT WORKS
The matting is a one inch high by twelve inch wide matrix enveloped in a geotextile filter fabric. 90% of the geomatrix is airspace, which means soil gas has room to move to the col-lection point. This creates incredible pressure field extension for post con-struction system activation. The mat can support concrete without com-pressing, yet is extremely lightweight and easy to handle.
This system allows for radon to flow through the filter fabric and into the airspace. The airspace does not clog because the filter fabric retains the underlying gravel and soil. The natural airflow through the mat then channels the radon to the T riser to pipe connec-tion. From there, hazardous gas can be vented safely through the roof of the building.
Another key element of a soil gas col-lection system is attaching the 4” riser to the mat, such that airflow is not restricted at this critical juncture. The soil gas T riser is unique as it has three ports, two redundant mat entries and one PVC connection to outside air. This unique fitting connects all three sides without special connections or fittings. common duct tape and caulk does the trick. 2
ADVANTAGES
NO TRENCHINGNO BACKFILLNO VAPOR BARRIER*

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

get the facts @
www.RadonReality.com
For anything and everything radon, VISIT US @ www.radonPDS.com
about us
Professional Discount Supply | Radon
Family-owned and operated since 1996. Situated on Colorado’s front range, PDS focuses on generating radon awareness through one-on-one technical support and trouble-shooting. Our products have been successfully installed in all 50 states and several foreign countries.

We’re always just a phone call away.
719-444-0646
1902 Aerotech Drive, Ste 110
Colorado Springs, CO 80916
Distribution opportunities available,
Please call for availability in your market
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 Products
1801 Pittsburgh Avenue, Erie, PA U.S.A. 16502 · Ph. 855-663-9876, Fax [phone]
In Canada | Zurn Industries Limited
3544 Nashua Drive, Mississauga, Ontario L4V 1L2 · Ph. 905-405-8272, Fax [phone]
www.zurn.com
Rev. C
Date:12/13/17
C.N. No.139307
Prod. | Dwg. No.CO2450
CO-2450
ADJUSTABLE 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-2450
Adjustable Floor Cleanout, recommended for foot traffic and
light-duty applications. This cleanout is furnished with a PVC
or ABS body, with an adjustable nickel cover and an ABS taper
thread 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
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
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