24054_AJACC Auto_VIMP Rev 1_20220315

Vapor Intrusion Mitigation Plan
Revision 1

AJACC Auto Brownfields Site
Elan LoSo
301 Verbena Street
Charlotte, North Carolina
Brownfields Project No. 24054-20-060

H&H Job No. KTG-001
March 15, 2022

#C-1269 Engineering #C-245 Geology
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Vapor Intrusion Mitigation Plan – Rev. 1 AJACC Auto Brownfields Site
Elan LoSo 301 Verbena Street Charlotte, North Carolina Brownfields Project No. 24054-20-060 H&H Job No. KTG-001

Table of Contents
1.0 Introduction ................................................................................................................ 1
2.0 Design Basis ................................................................................................................ 4
2.1 Base Course Layer and Vapor Barrier ..................................................................4
2.2 Horizontal Collection Piping and Vertical Riser Piping .......................................6
2.3 Monitoring Points ..................................................................................................7
2.4 General Installation Criteria ..................................................................................8
2.5 Evaluation for Utility Trench Dams ......................................................................9
3.0 Quality Assurance / Quality Control ..................................................................... 10
4.0 VIMS Effectiveness Testing .................................................................................... 11
4.1 Influence Testing .................................................................................................11
4.2 Pre-Occupancy Sub-Slab Soil Vapor Sampling ..................................................11
4.3 VIMS Effectiveness Results ................................................................................13
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
Figure 3 Proposed Development Layout Map
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Attachments

Attachment A Vapor Intrusion Assessment Data Summary (Excerpts)
Attachment B Vapor Intrusion Mitigation Design Drawings – Sheets VM-1, VM-1A, VM-
2, VM-A.1, VM-B.1, VM-B.2, VM-CD.1, VM-DE.0, and VM-E.1
Attachment C-1 VaporBlock 20 (VBP-20) Product Specification Sheets & Installation
Instructions
Attachment C-2 Drago Wrap Product Specification Sheets & Installation Instructions
Attachment C-3 Big Foot Slotted PVC Pipe Product Specification Sheet
Attachment C-4 Empire Wind-Turbine Ventilator Specification Sheet
Attachment C-5 Zurn Industries Floor Clean-out Product Specification Sheet
Attachment C-6 Soil Gas Collector Mat Product Information and Installation Guide

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Vapor Intrusion Mitigation Plan – Rev. 1 Elan LoSo
301 Verbena Street Charlotte, North Carolina Brownfields Project No. 24054-20-060 H&H Job No. KTG-001
1.0 Introduction On behalf of KTGY Group, Inc. (KTGY) and Greystar Development East, LLC (Greystar), Hart
& Hickman, PC (H&H) has prepared this Vapor Intrusion Mitigation Plan (VIMP) for the Phase
I redevelopment of the Action Jackson Aftermarket and Car Care Automotive Service and
Repair (AJACC Auto) North Carolina Department of Environmental Quality (DEQ) Brownfields
Program property (Brownfields No. 24054-20-060) located at 301 Verbena Street in Charlotte,
Mecklenburg County, North Carolina (Site). Other addresses associated with the Site include
300, 304, 308, and 310 Yeoman Road and 4601 Macie Street. A Site location map is provided as
Figure 1, and the Site and surrounding area are shown in Figure 2.

Froehling & Robertson, Inc. (F&R) conducted environmental assessment activities in 2020 as
described in F&R’s Limited Soil, Groundwater, and Soil Gas Assessment Report dated
September 9, 2020. In addition, F&R prepared an Environmental Management Plan (EMP)
dated August 10, 2021 for the Site that included additional assessment data collected in April
2021. The Site previously consisted of nine contiguous parcels of land and a right-of-way but
has since been redefined as one single parcel of land (Mecklenburg County Parcel Identification
No. 14903301) containing approximately 4.6 acres. Based on information in the F&R reports,
the prior properties that comprised the Site were developed with single-family residences in the
early 1900s, which were later converted into office and commercial use, and commercial
developments were constructed in the 1970s and 1980s. Historical commercial operations on the
Site have included automotive repair shops, a landscaping company, storage facility, and office
space. The Site is currently developed with commercial and industrial warehouse buildings.

Current redevelopment plans for the Site include razing the existing Site buildings and
constructing a six-story multi-family residential use building. The proposed development named

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Elan LoSo is being developed by Greystar, the Prospective Developer (PD) for the Site. Site
grading and redevelopment activities are expected to begin in early 2022. It is H&H’s
understanding that a Notice of Brownfields Property (Brownfields Agreement) is currently in
development between the PD and DEQ.

Due to the proposed topographic grade at the Site, the ground floor of the building will be split
into several different levels including the Terrace Level, and portions of Level 1 and Level 2.
The Terrace Level of the proposed building will be on grade and will consist of residential units,
building maintenance space, and trash collection/compaction. The enclosed area of the Terrace
Level is approximately 15,200 square feet. Level 1 consists of residential units, leasing,
mechanical rooms, and amenity spaces. While the northwestern portion of Level 1 is located
above the Terrace Level, approximately 52,000 square feet of Level 1 in the south/southeastern
portion of the building is located on grade. The majority of Level 2 is located above Level 1, but
an approximate 15,900 square foot area of Level 2 in the southern section of the building is also
located on grade. The Level 2 on-grade enclosed areas consist of residential spaces and
mechanical rooms. In total, the proposed development will consist of approximately 83,100
square feet of enclosed occupiable space constructed on grade. The upper levels of the building
will of consist of residential units and amenity spaces. An open-air (non-enclosed) courtyard and
parking deck structure are also proposed within the building footprint.

Based on F&R’s EMP, the volatile organic compounds (VOCs) benzene and naphthalene were
detected in one or more soil gas vapor samples at concentrations exceeding the January 2021
DEQ Division of Waste Management (DWM) Residential Sub-Slab and Exterior Soil Gas
Screening Levels (SGSLs) but below Non-Residential SGSLs. Chlorinated VOC compounds
including tetrachloroethene (PCE) and trichloroethene (TCE) were detected in groundwater
samples collected from the northern and northeastern portions of the Site above the February
20218 DEQ DWM Groundwater Screening Levels (GWSLs), but these compounds were not
detected in the groundwater samples collected from the central and southern portions of the Site.
Furthermore, PCE and TCE were not detected above laboratory reporting limits in the soil gas
vapor samples. Based on these data, the EMP indicates that a vapor intrusion mitigation plan
(VIMP) is warranted for the proposed Site building. Excerpts from the EMP prepared by F&R

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including summary data tables and figures related to vapor intrusion mitigation assessment are
included in Attachment A.

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 condition in the pending
Brownfields Agreement. Per the North Carolina Brownfields Property Reuse Act 130A-310.32,
a prospective developer, with the assistance of H&H for this project, is to provide 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 H&H’s
professional engineer makes the following statement.

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

[SEAL]

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2.0 Design Basis
The VIMS design drawings are included in Attachment B as Sheets VM-1, VM-1A, VM-2, VM-
A.1, VM-B.1, VM-B.2, VM-CD.1, VM-DE.0, and VM-E.1 (dated February 28, 2022) and will
be used to guide construction of the VIMS. The building is also split into five areas, Area A
through Area E, in the VIMS design drawings to assist with construction coordination. The
building sections with the corresponding areas and VIMS design drawing sheet are shown in the
table below.

Building Section VIMS Design Drawing
Terrace Level – Area D & E VM-DE.0
Level 1 – Area A VM-A.1
Level 1 – Area B VM-B.1
Level 1 – Area C & D VM-CD.1
Level 1 – Area E VM-E.1
Level 2 – Area B VM-B.2
To reduce the potential for structural vapor intrusion, the VIMS will operate as a passive sub-
slab venting system that includes a network of horizontal sub-slab and vertical above-slab riser
piping connected to wind-driven turbine ventilators installed above the building roof to enhance
the passive system. The foundation of the building will consist of three distinct structural footing
and column supported slab-on-grade areas; Terrace level, Level 1, and Level 2. An enclosed
recycle room and bike storage room are located within the proposed open-air parking structure.
Therefore, as a conservative measure, vapor intrusion mitigation measures are also proposed for
these two enclosed rooms. Vapor intrusion mitigation measures are not warranted for the
remainder of the parking structure that is open to the ambient air. Pour-back retail areas or
commercial areas are not currently proposed for the building.

2.1 Base Course Layer and Vapor Barrier

The VIMS includes placement of a minimum 4-inch base course stone (gravel) layer consisting
of high permeability stone (clean #57 stone, or similar high permeability stone approved by the

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design engineer certifying the VIMP) 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.
Furthermore, vapor liner will also be installed around elevator pits and on vertical sub-grade
retaining walls backfilled with soil and that are located adjacent to enclosed or occupiable
spaces. Horizontal collection piping network will be installed within the base course stone layer
below the ground floor slabs prior to placement of the vapor liner. The horizontal vapor
collection piping is discussed further in Section 2.2. below. The piping layouts are shown on the
VIMS design drawings (Attachment B).

The vapor liner will consist of Vaporblock® Plus 20 (VBP20) manufactured by Raven Industries
(Raven). As an alternative, Drago® Wrap Vapor Intrusion Barrier (Drago Wrap) manufactured
by Stego® Industries (Stego) can also be installed. Vapor liners will be installed per
manufacturer installation instruction and technical specifications for each vapor liner product are
included in Attachment C. The liners will be installed over the base course stone layer or
applicable vertical sub-grade walls and footers to cover the areas shown on the design sheets.
Each vapor liner manufacturer recommends select sealing agents (mastics, tapes, etc.) for their
product. In accordance with the manufacturer installation instructions, the use of alternative
vapor liner products 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 liner will be attached and sealed to building footings and
subsurface concrete features utilizing the tape specified in the manufacturer instructions. Seams
within the building footprint 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.

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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™. 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.

2.2 Horizontal Collection Piping and Vertical Riser Piping

Passive sub-slab venting will be accomplished using horizontal slotted or perforated collection
piping which will collect vapor from beneath the ground floor slabs and discharge the vapors
above the building roofline. Both sub-slab and above-slab piping will consist of 3-inch diameter
Schedule 40 (SCH 40) PVC piping and fittings, unless otherwise specified in the design
drawings (Attachment 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 Attachment C.

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. Product specifications for
the soil gas collector mat are provided in Attachment C.

In order to enhance the passive VIMS, Empire Model TV04SS (stainless steel) wind-driven
turbine ventilators (or design engineer approved alternative) will be installed on the discharge
end of the vertical riser piping above the building roofline to further promote air exhaust from
the risers. The specified ventilators have a rated exhaust capacity of 126 to 147 cubic feet per
minute in a four mile per hour wind, but based on the specified positions of these wind turbines,

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wind will commonly drive the turbine ventilators at speeds greater than 4 miles/hr. Exhaust
discharge locations must be a minimum of 2 ft above the roofline and a minimum 10 ft from an
operable opening (e.g. door or window) or air intake into the building. Note that the exhaust
locations on the roof depicted in the VIMS design may be repositioned within the requirements
specified above and pending approval by the design engineer certifying the VIMP. Product
specifications for the proposed turbine ventilators are provided in Attachment C. Electrical
junction boxes (120VAC required) will be installed on the roof in close 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 vapor samples for laboratory analysis. The
monitoring point locations are shown on the VIMS design drawings (Attachment B).

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
tenants or residents during future monitoring events, the majority of the monitoring point access
ports will be located in hallways, mechanical rooms, or amenity spaces and protected by a floor
clean-out style cover. In select areas, the monitoring point will contain an exterior mounted
access port protected by an irrigation style box enclosure. Several monitoring points will be
connected to extended sub-slab horizontal pipes which place the intakes of the monitoring points
below occupied spaces. The extended monitoring points are expected to have no more than
approximately 6 ft of extension pipe. In order to reduce interference of VOCs from construction
materials in future sub-slab vapor samples submitted for laboratory analysis, the monitoring
point components may be connected using threaded connections or approved low VOC
containing products (Section 2.4). Product specifications for the proposed floor cleanout covers
are provided in Attachment C.

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In addition to the permanent monitoring points, several temporary monitoring points will be
installed in each building section as shown on the design drawings to allow for vacuum
measurements during the influence testing (see Section 4.1). These temporary monitoring points
will be installed with 1-inch diameter PVC pipe set within the sub-slab stone layer. After testing
is complete, the temporary monitoring points will be abandoned by removing the pipe to the
extent practical, installing an air-tight sealant (such as Raven Pour-N-Seal™) inside of the
pipe/conduit, and then patching the concrete to match the existing and surrounding surface.

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 on Sheets VM-1A and VM-2. 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.
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 must be capped
with a removable slip-cap or plug 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

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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.
2.5 Evaluation for Utility Trench Dams

Based on a review of the site data and utility plans, trench dams along utility trenches that are
sometimes used to reduce the potential for vapor migration along the utility trenches are not
warranted at this Site for the following reasons:

• There are no utility mains with transmissive backfill that directly connect the northern
portion of the Site where the concentrations of PCE and TCE in groundwater were
previously detected to other portions of the site where PCE and TCE were not detected.
One city stormwater line is proposed near the northern portion of the building, but it will
not be installed beneath the proposed buildings and the pipe will be backfilled with
compacted soils. The remaining utility mains will be installed from Yeoman Ave along
the southern portion where PCE and TCE was not previously detected in soil-gas or in
groundwater;
• The individual utilities that run to each unit in the proposed building will be backfilled
with soils below the slab. Therefore, vapors are unlikely to travel along these individual
utilities because there won’t be transmissive backfill around the utilities; and
• The entire ground floor slab will contain the VIMS controls as described herein. In the
unlikely event a vapor did travel along utilities, the VIMS is designed to prevent vapor
intrusion across all occupiable and enclosed spaces.

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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 the VIMS installation. The components that require inspection are outlined
below:
(1) Inspection of the base course stone layer, sub-slab piping layout, and monitoring points
prior to installing the vapor liner;
(2) Inspection of the vapor liner prior to pouring concrete or backfilling applicable sub-grade
vertical walls;
(3) Inspection of above-grade vertical riser piping; and
(4) Inspection of exhaust installations and riser pipe connections.

In addition to inspection of the vapor barrier, smoke testing of select areas of the vapor barrier
may be conducted per direction of the design engineer prior to the installation of concrete to
verify that the vapor barrier has been adequately sealed. Breaches in the vapor barrier identified
by visible smoke will be repaired during smoke testing activities. Each component of the VIMS
shall be inspected and approved by the design engineer, or the engineer’s designee, prior to being
covered.

Additional inspections will be conducted if the system(s) are activated to verify that the electric
fans (if installed) are functioning properly. Each inspection and smoke testing (if required) will
be performed by, or under direction of, the design engineer certifying the VIMP. 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 prevent preferential pathways, the use of hollow
piping by contractors to support their utilities in preparation for concrete pours is not permitted.
Contractors will be instructed to remove any 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 the inspection, and H&H will provide a subsequent notice to DEQ for the pending
inspection.

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4.0 VIMS Effectiveness Testing
4.1 Influence Testing

Post-installation (pre-occupancy) influence testing will be conducted on each VIMS treatment
area to evaluate vacuum communication across the slab and document sufficient depressurization
can be obtained should electric fans be needed in the future. Influence testing will be conducted
following installation of the horizontal collection piping, placement of the vapor liner, and
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. As warranted, several electric
fans will be attached to multiple risers during each section being tested to assess influence at
each monitoring point. Pressure differential will be measured at extraction fan locations and
each monitoring point will be checked for vacuum, including the temporary monitoring points
depicted in the design drawings. 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 submitted to DEQ as part of 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 the VIMS Installation Completion Report.

4.2 Pre-Occupancy Sub-Slab Soil Vapor Sampling

After VIMS installation, but prior to occupancy of the building, sub-slab vapor samples will be
collected from select monitoring points to further evaluate the potential for structural vapor
intrusion. The sub-slab vapor samples will be collected from locations generally separated by
slab footings and at the furthest reaches of the VIMS. Vapor intrusion assessment analytical
results for samples collected in the footprint of the proposed building will be used to evaluate
risk to future occupants of the building. A total of 15 sub-slab vapor samples are proposed

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across the building footprint at the specific monitoring point locations in the following table.
Prior to sampling, the final monitoring point sample locations will be verified with DEQ.

Proposed Sub-Slab Vapor Sample Locations
Building Section VIMS Design Sheet Monitoring Point Sample Locations
Terrace Level – Area D & E VM-DE.0 MP-T1, MP-T3, MP-T6
Level 1 – Area A VM-A.1 MP-2, MP-4, MP-7, MP-8
Level 1 – Area B VM-B.1 MP-20
Level 1 – Area C & D VM-CD.1 MP-15, MP-18
Level 1 – Area E VM-E.1 MP-9, MP-11, MP-13
Level 2 – Area B VM-B.2 MP-21, MP-25, MP-27

One duplicate sub-slab soil vapor sample using a laboratory-supplied “T” fitting for laboratory
QA/QC purposes will be collected during each sampling event. In addition, indoor air sampling
will be conducted in Area A as described below.

Prior to sample collection, leak tests will be performed at each sub-slab vapor sample location.
A shroud will be constructed around the monitoring point and sub-slab soil vapor sampling train
and canister. The air within the shroud will be flooded with helium gas, and the concentrations
will be measured and maintained using a calibrated helium gas detector. With helium
concentrations within the shroud maintained, sub-slab soil vapor will be purged from the
sampling point with an air pump and collected into a Tedlar bag. The calibrated helium gas
detector will be used to measure helium concentrations within Tedlar bag sample to confirm
concentrations are less than 10% of the concentration maintained within the shroud. A minimum
of three sample train volumes will be purged from each point prior to and during the leak testing
activities.

The sub-slab soil vapor samples will be collected over an approximate 10-minute period using
laboratory supplied 1-liter or 1.4-liter Summa canisters and laboratory supplied flow regulators
calibrated with an approximate flow rate of 100 milliliters per minute. The vacuum in the
Summa canisters will be measured at the start and end of the sampling event, and will be

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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 (including
naphthalene) by EPA Method TO-15. The analytical laboratory will be instructed to report
vacuum measurements as received 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 the DEQ DWM Residential SGSLs to the extent possible.

4.3 VIMS Effectiveness Results

The results and analysis of the sub-slab soil vapor sampling will be submitted to DEQ with the
final VIMS Installation Completion Report (discussed in Section 7.0). Note, no occupancy of
the building can occur without prior written approval of DEQ, with the decision based on the
VIMS effectiveness results. After receipt of the sub-slab soil vapor sample analytical results,
H&H will use the most recent version of the DEQ Risk Calculator to evaluate cumulative vapor
intrusion risks under a residential scenario for each sample location. H&H will consider the
VIMS effective if the calculated cumulative risks are less than 1x10-4 for potential carcinogenic
risks and below a Hazard Index of 1.0 for potential non-carcinogenic risks, in accordance with
DEQ’s risk calculator thresholds. H&H 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 are greater
than 1x10-4 for potential carcinogenic risks and/or above a Hazard Index of 1.0 for potential non-
carcinogenic risks as a result of structural vapor intrusion, confirmation sub-slab vapor or indoor
air (see below) samples will be collected from the area of 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 (greater than 1x10-
4) and/or potential non-carcinogenic risks (above a Hazard Index of 1.0) as a result of structural

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vapor intrusion, considerations will be made to convert the system from a passive system to an
active system.

As described in Section 1.0, PCE and TCE were detected in groundwater samples collected at
the Site, but these compounds were not detected in soil gas samples. As a conservative measure,
indoor air sampling will be conducted in addition to the sub-slab sampling in the northern
portion of the building (Area A). The indoor air sampling activities in Area A will be conducted
concurrently with the sub-slab sampling activities. In addition, if PCE or TCE are detected in the
proposed sub-slab vapor samples at concentrations above their respective SGSLs in other areas
of the building and cumulative vapor intrusion risks are still within acceptable levels (as
indicated above), then indoor air sampling will also be performed in the area where the sub-slab
samples exhibit a SGSL exceedance.

Indoor Air Sampling
Three indoor air samples (IA-A1, IA-A2, and IA-A3) will be collected from Area A in the
northern portion of the building in the approximate locations depicted on Sheet VM-A.1. In
addition, if unacceptable risk levels are detected in the sub-slab soil gas samples or PCE and/or
TCE are detected above their respective SGSLs in other areas of the building (see above), then
indoor air samples in the corresponding areas will be collected in accordance with the DWM VI
Guidance. Recall that chlorinated solvents were not detected in prior soil gas assessment
performed by F&R. 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 construction and completion of the VIMS and fully enclosed building
including a minimum of two weeks with operational ventilators, but may be conducted prior to
initialization of the HVAC system. 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
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

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approximately 24-hour period for a residential use scenario. A 3-foot long sampling cane, or
similar methods, will be connected to the flow controller so that the sample intake point is
positioned approximately 5 ft above grade (typical breathing zone height) when the sample
canister is set on its base. In addition, during each indoor air sampling event, one duplicate
sample for laboratory QA/QC and one background sample from an ambient air upwind locations
will be collected. Prior to and after the indoor and background air samples are collected, vacuum
in the canisters will be measured using a laboratory-supplied vacuum gauge and recorded by
sampling personnel. A vacuum above 0 inHg and ideally around 5 inHg will be maintained
within the canisters at the conclusion of the sampling event.

The starting and ending vacuum in each canister will be recorded on the sample chain-of-
custody. Periodic checks will be conducted by sampling personnel to monitor the pressure
within the Summa canisters during sampling to ensure adequate sample volume is collected. The
sample canisters will then be labeled and shipped under standard chain-of custody procedures 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 vapor samples. The analytical
laboratory will be instructed to report vacuum measurements at receipt and J-flag concentrations
for each sample. H&H will request that the laboratory report compound concentrations to the
lower of the laboratory method detection limits or the DEQ DWM Residential Vapor Intrusion
Indoor Air Screening Levels (IASLs) to the extent possible. 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 paint, caulk, carpet, mastics, etc., which could be sources of
VOCs in indoor air, may cause interference with Site-specific compounds of concern during
indoor air sampling. As previously noted, the construction contractors will be requested to
provide SDSs for materials used during construction which will be submitted to DEQ, if needed
to further evaluate sub-slab and indoor air data.

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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 below 1x10-4 for potential
carcinogenic risks and below a hazard index of 1 for potential non-carcinogenic risks).

• Additional indoor air sampling is warranted to confirm that the VIMS is effective (per the
DWM VI Guidance, in the case where calculated cumulative risks are greater than 1x10-4
for potential carcinogenic risks or above a hazard index of 1 for potential non-
carcinogenic risks). Active fans may be installed as part of the VIMS and follow-up sub-
slab vapor and indoor air sampling will be performed after installation of the fans should
results of confirmation indoor air samples indicate that passive treatment is inadequate (in
the case where calculated cumulative risks continue to be greater than 1x10-4 for potential
carcinogenic risks or above a hazard index of 1 for potential non-carcinogenic risks).

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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 risers that discharge sub-surface vapors above the roofline. The
passive system will be enhanced with wind-turbine ventilators to promote air exhaust from the
sub-surface. 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 vapor
sampling and indoor air sampling at the locations indicated in Section 4.0 or as otherwise
determined in consultation with DEQ for a minimum of two years following building occupancy.
The sampling will be conducted using the procedures described in this VIMP. If the semi-annual
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 use. 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’s owners or management will be
instructed to contact appropriate parties to conduct the required maintenance. The building
management shall then contact a North Carolina licensed Professional Engineer (NC PE) 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
piping will be labeled with “Vapor Mitigation – Contact Maintenance”, or similar language, on
all accessible piping at intervals of no greater than 10-linear feet. Similar labels will also be
affixed to the exhaust discharge on the roof.

As part of the standard annual Land Use Restriction Update submittal that will be required as
part of the pending Notice of Brownfields Property agreement, H&H recommends the building
owner or property management group complete a visual inspection of the exposed parts of the
system including, but not limited to, the vertical risers and ventilators on the roof and the
monitoring points. H&H recommends annual inspections be documented and kept on record to
be provided to DEQ upon request.

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7.0 Reporting
A VIMS Installation Completion Report (sealed by a NC PE) documenting installation activities
associated with the VIMS will be submitted to DEQ following confirmation that the mitigation
system is installed and effectively mitigating potential vapor intrusion risks to building
occupants. The report will include a summary of VIMS installation activities such as
representative photographs and as-built drawings, QA/QC measures, SDSs of materials used in
construction, VIMS effectiveness testing results, and inspection documents. The report will also
include an engineer’s statement 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 engineer’s designee, results of
the influence testing, results of the analytical testing, and QA/QC measures as described in this
VIMP. Deviations from the approved design will be provided in the report.

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

After each semi-annual post-construction (post-occupancy) sub-slab vapor or indoor air 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
ELAN LOSO310 VERBENA STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 24054-20-060
DATE: 12-22-21
JOB NO: KTG-001
REVISION NO: 0
FIGURE NO: 1
2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology
TITLE
PROJECT
0 2,000 4,000
SCALE IN FEET
SITE
Path: S:\AAA-Master Projects\KTGY Architects\KTG-001 Elan LoSo VIMP\Figures\Site Map\Figure-1.mxdN
U.S.G.S. QUADRANGLE MAP
CHARLOTTE WEST, NORTH CAROLINA 2013
CHARLOTTE EAST, NORTH CAROLINA 2013
QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC)
REVISION NO. 0
JOB NO. KTG-001
DATE: 12-21-21
FIGURE NO. 2
ELAN LOSO310 VERBENA STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 24054-20-060
SITE MAP
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
SITE PROPERTY BOUNDARY
PARCEL BOUNDARY
SURFACE WATER FEATURE
PROPOSED BUILDING FOOTPRINT
PROPOSED OPEN-AIR SPACE
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology
NOTES:
1. AERIAL IMAGERYAND PARCEL DATA OBTAINED FROMMECKLENBURG COUNTY GIS (2021).
2. DEVELOPMENT PLAN PROVIDED BY KTGYARCHITECTURE + PLANNING, DATED 9-27-2021.
VER
B
E
N
A

S
T
R
E
E
T
YEOMAN ROADMACIE STREETGILE
A
D

S
T
R
E
E
T
YANCE
Y
R
OA
D
COURTYARD
PARKING
DECK
CHARLOTTE VAN & STORAGE(213 VERBENA STREET
PIEDMONT NATURAL GAS CO
(4301 YANCEY ROAD)
PIEDMONT NATURAL GAS CO(4301 YANCEY ROAD)VACANT BUILDING(332 & 336 YEOMAN ROAD)
UNDEVELOPED
245 YEOMAN ROAD
321 YEOMAN ROAD
S:\AAA-Master Projects\KTGY Architects\KTG-001 Elan LoSo VIMP\Figures\Site Map\Site Map.dwg, FIG 2, 12/20/2021 1:15:58 PM, SVincent
REVISION NO. 0
JOB NO. KTG-001
DATE: 12-21-21
FIGURE NO. 3
ELAN LOSO310 VERBENA STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 24054-20-060
DEVELOPMENT PLAN
LEGEND
PARCEL BOUNDARY
SURFACE WATER FEATURE
OPEN-AIR SPACE
SLAB-ON-GRADE AREA - TERRACE LEVEL(SHEET VM-DE.0)
SLAB-ON-GRADE AREA - LEVEL 1
SLAB-ON-GRADE AREA - LEVEL 2(SHEET VM-B.2)
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology
NOTES:
1. DEVELOPMENT PLAN PROVIDED BY KTGYARCHITECTURE + PLANNING, DATED 9-27-2021.
VERBENA STREET
Y
E
O
M
A
N

R
O
A
D
SHEET VM-E.1
SHEET VM-B.1
SHEET VM-A.1
SHEET VM-CD.1
COURTYARD
PARKINGDECK
S:\AAA-Master Projects\KTGY Architects\KTG-001 Elan LoSo VIMP\Figures\Site Map\Site Map.dwg, FIG 3, 12/20/2021 1:15:19 PM, SVincent

Attachment A

Vapor Intrusion Assessment Data Summary (Excerpts)

Attachment B

Vapor Intrusion Mitigation Design Drawings Sheets VM-1, VM-1A, VM-2, VM-A.1, VM-
B.1, VM-B.2, VM-CD.1, VM-DE.0, and VM-E.1 (dated February 28, 2022)
VAPOR BARRIER AND BASE COURSE (TYPICAL)1
BASE COURSE - CLEAN #57 STONEMIN 4" THICK BENEATH VAPOR BARRIER(SEE SPECIFICATION #3)
VAPOR BARRIER (SEE SPECIFICATION #2)
CONCRETE FLOOR SLAB
SUBBASE
NTSVM-1
SLOTTED COLLECTION PIPE (TYPICAL)2
3" SCH 40 THREADED FLUSH JOINTSLOTTED PVC PIPE SET WITH 1" MIN BASECOURSE BELOW PIPE (SEE SPECIFICATION #3)
VAPOR BARRIER (SEE SPECIFICATION #2)
SUBBASE
NTS
CONCRETE FLOOR SLAB
VM-1
PVC ENDCAP - DRILLAPPROX. 3 - 1/4" HOLES
VIMS AT VERTICAL RISERS WITH 90 DEGREE ELBOW (TYP)
NTS
3
VM-1
BASE COURSE(SEE SPECIFICATION #1)
SUB-BASE
VAPOR LINER SEALED TO PIPE PERMANUFACTURER INSTRUCTIONS
VAPOR LINER(SEE SPECIFICATION #1)
3" SCH 40 PVC RISER DUCT PIPE(SEE SPECIFICATION #3, #4 & #5)WALL (VARIES)
3" SCH 40 PVC90-DEGREE ELBOW
SOLID TO SLOTTED 3" SCH 40PVC PIPE TRANSITION (SLIPCOUPLING OR THREADED JOINT)
CONCRETEFLOOR SLAB
BASE COURSE
SUB-BASE
VIMS PIPING THROUGH THICKENED SLAB (TYP)
NTS
5
VM-1
SOLID 3"SCH 40 PVC
VAPOR LINER SEALED TO PIPE PERMANUFACTURER INSTRUCTIONS
PROVIDE PIPE SUPPORT TO PREVENTLOW POINT IN SOLID PIPE. MAINTAIN 1%SLOPE TOWARD SLOTTED SECTION OFPIPE (SEE SPECIFICATION #2)
VAPOR LINER
SOLID TO SLOTTED 3" SCH 40PVC PIPE TRANSITION (SLIPCOUPLING OR THREADED JOINT)
VAPOR LINER BENEATHGRADE BEAM
WALL (VARIES)
PIPE SLEEVE
3" SCH 40 PVC PIPE(IF PRESENT)
SEE BUILDER INSTRUCTIONS FORFOOTING PIPE PENETRATION
USE MANUFACTURER SPECIFICFITTINGS FOR SOIL GASCOLLECTOR MAT CONNECTION TOPVC PIPE (IF WARRANTED)
VIMS AT DEPRESSIONS IN SLAB-ON-GRADE (TYP)
NTS
8
VM-1
CONCRETE FLOOR SLAB
SUBBASEVAPOR LINER
BASE COURSE
VIMS PIPING THROUGH DEPRESSIONS IN SLAB-ON-GRADE (TYP)
NTS
6
VM-1
SUB-BASE
CONCRETEFLOOR SLAB
VAPOR LINER
BASE COURSE
SOLID TO SLOTTED 3" SCH40 PVC PIPE TRANSITION(SLIP COUPLING ORTHREADED JOINT)
3" SCH 40 PVC90-DEGREE ELBOW
VAPOR LINER SEALED TOPIPE PER MANUFACTURERINSTRUCTIONS
SOLID 3" SCH 40 PVCPIPE SLEEVE(SEE SPECIFICATION #12)
WALL (VARIES)
VIMS AT VERTICAL RISER (OPTIONAL SUB-SLAB COLLECTION PIPE)
NTS
3A
VM-1
BRICK OR HOUSE SIDINGEXTERNAL WALL (NOT PRESENTAT ALL LOCATIONS)
STUD WALL
VAPOR LINER SEALED TO PIPEAND CONCRETE PERMANUFACTURER INSTRUCTIONS.
3" SCH 40 PVC RISER DUCT PIPE(SEE SPECIFICATION #4, #5 & #6)
4" TO 3" PVC REDUCER
4" SCH 40 PVC RISER DUCT PIPE
BASE COURSE
SOIL GASCOLLECTOR MAT
SUBBASE
SOIL GAS COLLECTOR MAT CONNECTION SEALED TO 4" SCH 40PVC RISER WITH POLYURETHANE SEALANT
SOIL GAS COLLECTOR MAT CONNECTION BLOCK TO PVC (ONE 0.5"DIAMETER HOLE DRILLED IN BOTTOM FOR MOISTURE DRAINAGE)
IF FINAL GRADE EXTENDS HIGHERTHAN SLAB EDGE, EXTEND VAPORBARRIER UP SIDE OF CONCRETEFOOTER
VIMS VAPOR LINER AT INTERIOR THICKENED SLAB (TYP)
NTS
4
VM-1
CONCRETEFLOOR SLAB
BASE COURSE
VAPOR LINER
SUB-BASE
WALL (VARIES)
SLP.
VIMS AT RAMP (TYP)
NTS
7
VM-1
VAPOR LINERCONCRETE FLOOR SLAB
SUB-BASE
SLOTTED 3-INCHSCH 40 PIPEBASE COURSE
VIMS AT EXTERIOR COLUMN (TYP)
NTS
10
VM-1
SUB-BASE
CONCRETEFLOOR SLAB
BASE COURSE
VAPOR LINER
CIP CONCRETE COLUMN
VAPOR LINER SEALEDTO CONCRETE PERMANUFACTURERSINSTRUCTIONS
SEE DETAIL 11/VM-1COLUMN BLOCKOUT
VAPOR LINER SEALEDTO CONCRETE ONEACH SIDE OF COLUMN
VIMS AT INTERIOR COLUMN (TYP)
NTS
9
VM-1
SUB-BASE
CONCRETE FLOOR SLAB
BASE COURSE
VAPOR LINER
CIP CONCRETE COLUMN
CONCRETE FOOTING
VAPOR LINER SEALED OUTSIDE OFCONCRETE COLUMN PERMANUFACTURER INSTRUCTIONS
SEE DETAIL 11/VM-1
VAPOR LINER SEALEDTO CONCRETE ONEACH SIDE OF COLUMN
VIMS AT COLUMNS - EXPANSION DETAIL (TYP)
NTS
11
VM-1
CIP CONCRETE COLUMN
CONCRETE FLOOR SLAB
VAPOR LINER SEALED TO CONCRETEPER MANUFACTURERS INSTRUCTIONS
COLUMN EXPANSION FORM(INSTALLED OVER VAPOR LINER)
VAPOR LINER
VIMS VAPOR LINER AT EXTERIOR THICKENED SLAB (TYP)
NTS
12
VM-1
VAPOR LINER
SOIL SUB-BASE. GRAVEL BETWEEN OPENAIR PARKING GARAGE AND OCCUPIEDSPACE SHALL BE DISCONTINUOUS WITHMINIMUM 1-FT OF SOIL IN HORIZONTALDIRECTION BETWEEN GRAVEL LAYERS(SEE SPECIFICATION #8)
WALL (VARIES)
OPEN AIRPARKING GARAGEOCCUPIED SPACE
VAPOR LINER SEALED TO CONCRETE PERMANUFACTURERS INSTRUCTIONS (TYP)
WRAP VAPOR BARRIER ON OUTSIDE OFFOOTER, WHERE POSSIBLE
VIMS AT EXTERIOR FOOTING (TYP)
NTSVM-1
13
CONCRETE FLOOR SLAB
VAPOR LINER SEALED TO CONCRETEPER MANUFACTURERS INSTRUCTIONS
VAPOR LINER
BASE COURSE
SUB-BASE
WALL (VARIES)
EXTERIOR GRADE(VARIES)
VAPOR LINER EXTENDED TO EXTERIOR SIDEOF FOOTER NO MORE THAN 6-INCHES BELOWFINISHED GRADE WHERE POSSIBLE
WALL (VARIES)
BASE COURSESUB-BASE
VAPOR LINER
WALL (VARIES)
VAPOR BARRIER AT SLAB EDGE14
NTSVM-1
WALL (VARIES)
BASE COURSE
SUB-BASE
VAPOR LINER
OPEN AIR PATIO /TERRACE
VAPOR LINER EXTENDED TOEXTERIOR SIDE OF FOOTER NO MORETHAN 6-INCHES BELOW FINISHEDGRADE WHERE POSSIBLE
TERMINATE VAPORLINER AT SOIL GRADE,WHERE APPLICABLE
VIMS AT KNEE WALL (TYP)
NTSVM-1
15
VAPOR LINER SEALEDTO CONCRETE PERMANUFACTURERSINSTRUCTIONS
VAPOR LINER
EXTERIOR GRADE(VARIES)
SUB-BASE
VAPOR LINER
BASECOURSE
EXTERIORGRADE (VARIES)
SUB-BASE
VAPOR LINER SEALED TOCONCRETE/BRICK PERMANUFACTURERS INSTRUCTIONS
BASECOURSE
VENEER WALL
VAPOR LINER EXTENDED TOEXTERIOR SIDE OF FOOTERNO MORE THAN 6-INCHESBELOW FINISHED GRADEWHERE POSSIBLE
VAPOR MITIGATION PLANPREPARED BY:
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
CROSS-SECTION
DETAILS #1-15
VM-1
NOTES:
VIMS = VAPOR INTRUSION MITIGATION SYSTEMTYP = TYPICALSCH = SCHEDULEPVC = POLYVINYL CHLORIDE
NTS = NOT TO SCALE
ALL PIPE MEASUREMENTS ARE BY DIAMETER
PROFESSIONAL
APPROVAL
H&H NO. KTG-001
ELAN LOSO301 VERBENA STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 24054-20-060REVISIONS
REV DATE DESCRIPTION
0 01/05/22 DEQ SUBMISSION
1 02/28/22 RESUBMISSION
DEVELOPER:
GREYSTAR
521 E. MOREHEAD STREETSUITE 400CHARLOTTE, NORTH CAROLINA
DATE: 02-28-22
02/28/22
S:\AAA-Master Projects\KTGY Architects\KTG-001 Elan LoSo VIMP\Figures\VIMP Design_R1.dwg, 2/25/2022 1:24:08 PM, DWG To PDF.pc3
FINISHED FLOOR SLAB
2" SCH 40 PVC SET WITHIN GRAVEL LAYER(SEE DETAIL 14 & 15)
2" DRAIN EXPANSION TEST PLUG
VIMS MONITORING POINT - TYPICAL DETAIL VIEW
NTS
24
VM-1A
VAPOR BARRIER PENETRATION SEALED TOPIPE PER MANUFACTURER INSTRUCTIONS
2" SCH 40 PVC 90 DEGREE ELBOW
FLOOR CLEANOUT, ADJUSTABLE, 4" DIA ZURNINDUSTRIES MODEL #CO2450-PV4 (OR ENGINEERAPPROVED EQUIVALENT) FLUSH WITH FINISHED FLOOR
BASE COURSE
4" x 2" FLUSH REDUCERBUSHING
OPEN-ENDED PIPE
VIMS AT RETAINING WALL ADJACENT TO OCCUPIED SPACE (TYP)
NTS
20
VM-1A
OPEN AIR SPACE
OCCUPIED SPACE
SUB-BASE
BASE COURSE
VAPOR LINER
VAPOR LINER SEALED TO OUTSIDE OF CONCRETEAND WATERPROOFING MEMBRANE (WHEREPRESENT) PER MANUFACTURER INSTRUCTIONS(SEE DETAIL 17/VM-1A)
WATERPROOFING ANDRIGID INSULATION
DRAIN
WALL (VARIES)
CONCRETEFLOOR SLAB
16
NTSVM-1A
VIMS AT ELEVATOR PIT (TYP)
CONTINUOUS VAPOR LINERSEALED PER MANUFACTURERINSTRUCTIONS
SUMP PIT
SUB-BASE
BASE COURSE
VAPOR LINER
WATERPROOFING MEMBRANE (IFPRESENT - REFER TO ARCH PLANS)(SEE SPECIFICATION #13)
SEE DETAIL 17/VM-1A
VAPOR LINER SEALED TO OUTSIDE OF CONCRETEAND WATERPROOFING MEMBRANE (WHEREPRESENT) PER MANUFACTURER INSTRUCTIONS(SEE DETAIL 17/VM-1A)
VIMS AT RETAINING WALL ADJACENT TO ENCLOSED SPACE (TYP)
NTS
21
VM-1A
OCCUPIED SPACE
OCCUPIED SPACE
SUB-BASE
BASE COURSE
VAPOR LINER
VAPOR LINER SEALED TO OUTSIDE OF CONCRETEAND WATERPROOFING MEMBRANE (WHEREPRESENT) PER MANUFACTURER INSTRUCTIONS(SEE DETAIL 17/VM-1A)
WATERPROOFING ANDRIGID INSULATION
DRAIN
WALL (VARIES)
CONCRETEFLOOR SLAB
BASE COURSE
FLOOR CLEANOUT, ADJUSTABLE,4" DIA ZURN INDUSTRIESMODEL #CO2450-PV4 (OR ENGINEERAPPROVED EQUIVALENT)SEE DETAIL 24/VM-1A
FLUSH WITHFINISHED FLOOR
25
NTSVM-1A
VIMS MONITORING POINT WITH EXTENDED INTAKE PIPE
VAPOR LINER
2" SOLID SCH 40 PVCLENGTH VARIES - REFERTO SHEET VM-1
2" SCH 40 PVC 90-DEGREEELBOW VAPOR LINER PENETRATIONSEALED TO PIPE PERMANUFACTURER INSTRUCTIONS
WALL (VARIES)
OPEN-ENDED PIPE
VIMS TURBINE VENTILATOR FAN & EXHAUST (TYP)30
NTS
TURBINE VENTILATOR FAN(EMPIRE MODEL TV04SS OR ENGINEERAPPROVED EQUIVALENT)
OUTDOOR-RATED ELECTRICAL JUNCTION BOX FORPOTENTIAL FUTURE VACUUM FAN (REFER TOSPECIFICATION #4)
RISER DUCT PIPE THROUGH ROOF
FLASHING
ROOFTOP
VM-1A
HEAVY DUTY NO-HUB RUBBERCOUPLING
17
VM-1A
SOIL SUB-BASE
VAPOR LINER
DRAINAGE MAT (IFPRESENT- REFER TOARCH PLANS)
CONCRETE
NTS
VIMS VAPOR BARRIER IN AREAS WITH WATERPROOFING
WATERPROOFING MEMBRANE (REFERTO ARCH PLANS)(SEE SPECIFICATION #13)
VAPOR LINERBENEATH THICKENED SLAB
VAPOR BARRIER AT STAIR THICKENED SLAB18
NTS
STAIR STRINGER
SUBBASE
BASE COURSE
VM-1A
CONCRETE FLOORSLABVAPOR LINER
VIMS AT RETAINING WALL ADJACENT TO OPEN AIR SPACE (TYP)
NTS
22
VM-1A
INTERIOR SPACE
OPEN AIR SPACE
SUB-BASE
CONCRETEFLOOR SLAB
BASE COURSE(SEE SPECIFICATION #1)
VAPOR LINER
WATERPROOFING AND RIGIDINSULATION (IF INSTALLED -REFER TO ARCH. DRAWINGS)
DRAIN
WALL (VARIES)
VIMS MONITORING POINT AT WALL CONNECTION (IF WARRANTED)
NTS
27
VM-1A
BASE COURSE
VAPOR LINER SEALED TO PIPE PERMANUFACTURER INSTRUCTIONS
WALL (VARIES)
POSITION TOP OF 2" PIPE MINIMUM 10"FROM TOP OF ACCESS PANEL DOOR
2" SCH 40 PVC 90DEGREE ELBOW
PIPE SLEEVE VAPOR LINER
12" X 12" WALLACCESS PANEL
PROVIDE PIPE SUPPORT TO PREVENT LOW POINT IN SOLIDSECTION OF PIPE. MAINTAIN MINIMUM 1% SLOPE TOWARDOPEN-END OF PIPE. (SEE SPECIFICATION #2)
2" DRAIN EXPANSION TEST PLUG
OPEN-ENDED PIPE
POSITION AT CENTER OF WALL ORALLOW FOR AT LEAST 1/2" DISTANCEAROUND ALL SIDES OF PIPE
2" SOLID SCH 40 PVC PIPE
EXTERIOR PERMANENT VACUUM MEASURING POINT (TYP)28
NTSVM-1A
WALL (VARIES)
PROVIDE LOCKABLE WEATHERPROOFENCLOSURE ON OUTSIDE OF BUILDINGWALL (OR SIMILAR). AFFIX LABEL ATBOX WITH "VAPOR MITIGATION SYSTEM".PLACE REMOVABLE PIPE PLUG AT ENDOF 2" PIPE.
VAPOR LINER SEALED TO CONCRETE PERMANUFACTURERS INSTRUCTIONS (TYP)
2" SCH 40 PVC 90DEGREE ELBOW
2" SOLID SCH 40 PVC PIPE
INSTALLER SHALL SECURE PIPE TOPREVENT MOVEMENT OR DAMAGE TOPIPE DURING THE CONCRETE POUR
EXTERIOR GRADE(VARIES)
BASE COURSE(SEE SPECIFICATION #1)
2" OPEN ENDED PIPE, PLACED AT A MINIMUM OF5' FROM EXTERIOR TURN-DOWN SLABS
VENT PIPE PROTECTION SCREEN
PIPE SLEEVE. SEE SPECIFICATION #11. SLEEVESHALL NOT PENETRATE VAPOR LINER.
VAPOR LINER(SEE SPECIFICATION #1)
VAPOR LINER SEALED TO PIPE PERMANUFACTURERS INSTRUCTIONS (TYP)
VIMS AT SLAB ON GRADE FOLD WITH PIPE CONNECTION (TYP)
NTS
23
VM-1A
OCCUPIED SPACE
OCCUPIED SPACE
SUB-BASE
BASE COURSE
VAPOR LINER
VAPOR LINER SEALED TO OUTSIDE OF CONCRETEAND WATERPROOFING MEMBRANE (WHEREPRESENT) PER MANUFACTURER INSTRUCTIONS(SEE DETAIL 17/VM-1A)
DRAIN
WALL (VARIES)
CONCRETEFLOOR SLAB
SOLID TO SLOTTED 3" SCH 40 PVCPIPE TRANSITION (SLIP COUPLINGOR THREADED JOINT)
3" SCH 40 PVC90-DEGREE ELBOW
VAPOR LINER SEALED TO PIPEPER MANUFACTURERINSTRUCTIONS
3" SCH 40 PVC45-DEGREE ELBOW
PIPE SLEEVE
WATERPROOFING AND RIGIDINSULATION (IF INSTALLED -REFER TO ARCH. DRAWINGS)
VIMS AT RETAINING WALL ADJACENT TO ENCLOSED SPACE (TYP)
NTS
19
VM-1A
LEVEL 2
SUB-BASE
BASE COURSE
VAPOR LINER SEALED TO OUTSIDEOF CONCRETE AND WATERPROOFINGMEMBRANE (WHERE PRESENT) PERMANUFACTURER INSTRUCTIONS (SEEDETAIL 17/VM-1A)
WATERPROOFING ANDRIGID INSULATION
DRAIN
BREEZEWAY
CONCRETE TOPPINGSLAB ON FORM DECK
BASE COURSE
FLOOR CLEANOUT, ADJUSTABLE,4" DIA ZURN INDUSTRIESMODEL #CO2450-PV4 (OR ENGINEERAPPROVED EQUIVALENT)SEE DETAIL 24/VM-1A
VAPOR LINER PENETRATION SEALED TOPIPE PER MANUFACTURERINSTRUCTIONS
2" SOLID SCH 40PVC (APPROXIMATE 5 FT LENGTH)
2" SCH 40PVC 90 DEGREE ELBOW
FLUSH WITHFINISHED FLOOR
PROVIDE PIPE SUPPORT TO PREVENT LOW POINTIN SOLID SECTION OF PIPE. MAINTAIN MINIMUM1% SLOPE TOWARD SLOTTED SECTIONS OF PIPE.(SEE SPECIFICATION #2)
26
NTSVM-1A
VIMS MONITORING POINT AT THICKENED SLAB WITH EXTENDED INTAKE PIPE
PIPE SLEEVE
OPEN-ENDED PIPE
29
NTS
VAPOR BARRIER PENETRATION SEALED TOPIPE PER MANUFACTURER INSTRUCTIONS
1" SCH 40 PVC 90 DEGREE ELBOW
OPEN ENDED PIPE
BASE COURSE(SEE SPECIFICATION #1)
TEMPORARY MONITORING POINT (TYPICAL)
1" SOLID SCH 40 PVC
TEST PLUG (1" PIPE SIZE)
SET PIPE FLUSH WITH SLAB OREXTENDED MORE THAN 6" ABOVESLAB. SEE SPECIFICATION #7.
VM-1A
VAPOR MITIGATION PLANPREPARED BY:
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
CROSS-SECTION
DETAILS #16-30
VM-1A
PROFESSIONAL
APPROVAL
H&H NO. KTG-001
ELAN LOSO301 VERBENA STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 24054-20-060DEVELOPER:
GREYSTAR
521 E. MOREHEAD STREETSUITE 400CHARLOTTE, NORTH CAROLINA
REVISIONS
REV DATE DESCRIPTION
0 01/05/22 DEQ SUBMISSION
1 02/28/22 RESUBMISSION
DATE: 02-28-22
02/28/22
S:\AAA-Master Projects\KTGY Architects\KTG-001 Elan LoSo VIMP\Figures\VIMP Design_R1.dwg, 2/25/2022 12:30:16 PM, DWG To PDF.pc3
VAPOR MITIGATION PLANPREPARED BY:
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
SPECIFICATIONS
VM-2
NOTES:
VIMS = VAPOR INTRUSION MITIGATION SYSTEMTYP = TYPICAL
SCH = SCHEDULEPVC = POLYVINYL CHLORIDENTS = NOT TO SCALE
MIL = THOUSANDS OF AN INCH
ALL PIPE MEASUREMENTS ARE BY DIAMETER
PROFESSIONAL
APPROVAL
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 LINER SHALL BE VAPORBLOCK PLUS 20 (VBP20) 20-MIL VAPOR LINER MANUFACTURED BY RAVEN INDUSTRIES (RAVEN). AS AN ALTERNATIVE, DRAGO WRAP 20-MIL VAPOR LINERMANUFACTURED BY STEGO INDUSTRIES, LLC (STEGO) CAN BE USED, PENDING APPROVAL BY THE ENGINEER.
THE VAPOR LINER SHALL BE INSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER INSTALLATION INSTRUCTIONS TO CREATE A CONTINUOUS LINER BELOW MITIGATED AREAS, AND ALONGRETAINING WALLS AND SLAB-ON-GRADE FOLDS WITHIN THE EXTENT OF VAPOR LINER BOUNDARY. A MINIMUM 4-INCH THICK BASE COURSE CONSISTING OF CLEAN #57 STONE (WASHED WITHNO 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 LINER 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 WALLSWHICH SUPPORT OCCUPIED ENCLOSED SPACES.
2.2. VAPOR BARRIER SHALL BE INSTALLED ON SLABS, WALLS, AND OTHER STRUCTURAL COMPONENTS WHICH COME IN CONTACT WITH BOTH AN OCCUPIABLE ENCLOSED SPACE AND SOIL.
2.3. ALL CONCRETE BOXOUTS, INCLUDING BUT NOT LIMITED TO SHOWER/BATH TUB DRAINS, SHALL HAVE A CONTINUOUS VAPOR LINER INSTALLED BELOW.
3. SUB-SLAB SLOTTED VAPOR COLLECTION PIPE SHALL BE THREADED FLUSH JOINT 3" SCH 40 PVC PIPE WITH 0.020" TO 0.060" SLOT WIDTH AND 1/8" SLOT SPACING. AN ALTERNATE SLOT PATTERN,
OR SCH 40 PVC PERFORATED PIPE WITH 5/8" OR SMALLER DIAMETER PERFORATIONS, OR SOIL GAS COLLECTOR MAT (1" X 12"), WITH SIMILAR AIR FLOW CHARACTERISTICS TO THE SLOTTED PIPE
MAY BE USED PENDING APPROVAL BY THE DESIGN ENGINEER. IF CIRCULAR PIPE IS USED, A CAP WITH 12" DIA HOLES OR SLOTS SHOULD BE INSTALLED ON THE OPEN PIPE END. PVC PIPE JOINTS
SHOULD BE DRY-FITTED BELOW THE SLAB OR CONNECTED WITH SCREWS.
3.1. SLOTTED COLLECTION PIPING SHALL BE SET WITHIN A MINIMUM 4” BASE COURSE LAYER, WITH APPROXIMATELY 1” OF BASE COURSE MATERIAL BELOW THE PIPING.
3.2. SOIL GAS COLLECTOR MAT 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 PVC PIPING FOR CROSSINGS THROUGHFOOTINGS.
4. 3" SCH 40 PVC RISER DUCT PIPING SHALL BE INSTALLED TO CONNECT EACH SLAB PENETRATION LOCATION TO A ROOFTOP EXHAUST DISCHARGE POINT WITH TURBINE FAN (SEE SPECIFICATION
#5). ABOVE-SLAB RISER DUCT PIPE 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. VERTICAL RISER PIPING SHALL BE CONNECTED WITH PVC PRIMER AND GLUE. VERTICAL RISER PIPING MUST BE INSTALLED PER 2018
NORTH CAROLINA STATE PLUMBING CODE. 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. 3" SCH 40 PVC 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 STAINLESS STEEL TURBINE VENTILATOR FANS (OR ALTERNATE APPROVED BY ENGINEER) SHALL BE INSTALLED ON THE EXHAUST DISCHARGE END OF EACH RISER DUCT PIPE. THE3" RISER DUCT PIPE AND THE FAN SHALL BE SECURED TO THE PVC RISER IN A VERTICAL ORIENTATION. EXHAUST DISCHARGE LOCATIONS SHALL BE A MINIMUM OF 10 FT FROM ANY OPERABLEOPENING 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 NEWPOSITION MEETS THE REQUIREMENTS PRESENTED ABOVE, PENDING ENGINEER APPROVAL.
5.1. AN ELECTRICAL JUNCTION BOX (120VAC REQUIRED) FOR OUTDOOR USE SHALL BE INSTALLED NEAR THE FAN LOCATION ON THE ROOFTOP FOR POTENTIAL FUTURE CONVERSION TOELECTRIC 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 TO THE TURBINE FANS 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, OROTHERWISE 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 PIPETERMINATION SHALL BE ENCASED WITHIN THE BASE COURSE LAYER. 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.
7.1. A 4-INCH DIAMETER ADJUSTABLE FLOOR CLEAN-OUT (ZURN INDUSTRIES MODEL #CO2450-PV4, OR EQUIVALENT) SHALL BE INSTALLED AND SET FLUSH WITH THE FINISHED CONCRETESURFACE. MONITORING POINT INTAKE SHALL BE MINIMUM 5-FT FROM EXTERIOR FOOTING.
7.2. TEMPORARY MONITORING POINTS SHALL CONSIST OF 1-INCH DIAMETER SCH 40 PVC PIPE WITH A 90-DEGREE ELBOW TO FORM AN “L” SHAPE. THE TEMPORARY MONITORING POINTS MAYBE ABANDONED USING AIR-TIGHT SEALANT AND CONCRETE AFTER TESTING PER PERMISSION OF 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 PORTIONS OF THE BUILDING WITH AT LEAST 12" SEPARATION OF ADJACENT GRAVEL BEDS. THE THICKENED SLAB OR FOOTER SHALL BE AMINIMUM OF 5" GREATER IN THICKNESS THAN THE SURROUNDING SLAB.
10. CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS SHALL AVOID THE USE OF TEMPORARY FORM BOARDS THAT PENETRATE THE VAPOR LINER WHERE POSSIBLE. IF TEMPORARY FORMBOARDS 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.
11. INSPECTIONS: INSPECTIONS OF EACH COMPONENT OF THE VIMS SHALL BE CONDUCTED BY THE ENGINEER, OR ENGINEER'S DESIGNEE, TO CONFIRM VIMS COMPONENTS ARE INSTALLED PERTHE 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 TURBINE
FANS 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 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 FORFOOTING 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 WHERE IT OVERLAPS (SEE DETAIL #16). THE INSTALLER
SHALL CONFIRM THAT THE WATERPROOFING PRODUCTS AND SEALANTS USED DURING CONSTRUCTION ARE COMPATIBLE WITH THE SPECIFIED VAPOR BARRIER.
H&H NO. KTG-001
ELAN LOSO301 VERBENA STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 24054-20-060DEVELOPER:
GREYSTAR
521 E. MOREHEAD STREETSUITE 400CHARLOTTE, NORTH CAROLINA
REVISIONS
REV DATE DESCRIPTION
0 01/05/22 DEQ SUBMISSION
1 02/28/22 RESUBMISSION
DATE: 02-28-22
02/28/22
S:\AAA-Master Projects\KTGY Architects\KTG-001 Elan LoSo VIMP\Figures\VIMP Design_R1.dwg, 2/25/2022 1:23:41 PM, DWG To PDF.pc3
T/SLAB = 709.74'
T/CIP WALL= 710.50'
SIMS1.1A8.1TYPE AA2.2A1.1A1.1B3.1B3.1B7.1A1.1A1.1A1.1S1.1B3.1 B5.2
704.00'705.50'704.00'
704.50'705.00'
T/FTG = 703.99'
SLAB ON GRADE PERSHEET NOTE #20
ELEV 1
STAIR 1
STAIR ON GRADE,SEE 13/S3-01
T/CURB = 706.90'
T/CURB = 709.50'
SIM
SIM
705.40'705.40'705.40'
705.40'
705.40'
PROVIDE THICKNEDFOOTING AT STAIRPER 4/S3-01
T/WALL = SEE CIVIL
SIM
T/MAT = 704.00'
SIM
SIM
T/CURB = 706.90'
T/CURB = 707.91'
T/CURB = 706.90'
T/CURB VARIES @RAMP. SEE ARCH.
704.00'
705.00'
T/MAT = 704.00'
LEASING
CAFE
STAIR 1
ELEV 1
708.99
ELEC MECHTEL
MEZZANINE ABOVE
706.40
RAMP DOWN706.40
7.95%8.29%705.65
1079.18 S.F
33.48 S.F
CANOPY ABOVE
CANOPY ABOVE
EP
F.E.C.
F.E.C.
F.E.C.F.E.C.
F.E.C.
F.E.C.
F.H.C. + STANDPIPE 7.14%8.00%706.40
707.41
707.41
707.41
707.89
708.557.14%7.14%708.99
707.89
707.41
708.55
E-1
E-4
E-3
E-5
E-2
MP-1
MP-3
MP-4
MP-5
MP-6
MP-8
TMP-1
TMP-2
TMP-3
STAIR 2
TMP-4
MP-2
MP-7
VAPOR MITIGATION PLANPREPARED BY:
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 1 - AREA A
VM-A.1
PROFESSIONAL
APPROVAL
OPEN AIR
PARKING DECK
H&H NO. KTG-001
ELAN LOSO301 VERBENA STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 24054-20-060DEVELOPER:
GREYSTAR
521 E. MOREHEAD STREETSUITE 400CHARLOTTE, NORTH CAROLINA
LEGEND
SLAB GRADE CHANGE
THICKENED SLAB
COLUMN AND FOOTING
OUTDOOR OR OPEN AIR SPACE
PROPOSED TOP OF SLAB ELEVATION (TOS). REFER TO STRUCTURAL
CONSTRUCTION DRAWINGS FOR FINAL ELEVATIONS.
EXTENT OF VAPOR LINER
HORIZONTAL COLLECTION PIPING OR SOIL GAS COLLECTOR MAT
3" DIA SCH 40 SOLID PVC PIPE
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH EXHAUST IDENTIFICATION NUMBER(REFER TO DETAIL NUMBER 30 ON SHEET VM-1A)
2" DIA SOLID PVC PRESSURE MONITORING POINT WITH FLUSH-MOUNTED COVER
1" DIA SOLID PVC TEMPORARY MONITORING POINT(POSITION INTAKE MINIMUM 5-FT FROM EXTERIOR FOOTING)
PROPOSED INDOOR AIR SAMPLE LOCATION
MP-4
E-4
708.00
VM-E.1
VM-B.1
1
VM-1
7
VM-1
5
VM-1
3/30
VM-1/1A
3/30
VM-1/1A
14
VM-1
13
VM-1
4
VM-1
24
VM-1A
16
VM-1A
27
VM-1A
10
VM-1
6
VM-1
9
VM-1
3/30
VM-1/1A12
VM-1
27
VM-1A
24
VM-1A
8
VM-1
24
VM-1A
15
VM-1
REVISIONS
REV DATE DESCRIPTION
0 01/05/22 DEQ SUBMISSION
1 02/28/22 RESUBMISSION
DATE: 02-28-22
02/28/22
TMP-4
29
VM-1A
29
VM-1A
29
VM-1A
POSITION MONITORING POINT
UNDER STAIR LANDING
IA-A1
IA-A2
IA-A3
IA-A1
S:\AAA-Master Projects\KTGY Architects\KTG-001 Elan LoSo VIMP\Figures\VIMP Design_R1.dwg, 2/25/2022 12:31:29 PM, DWG To PDF.pc3
T/FND = 711'-0"SIMSIM SIM
T/FND = 709.00'T/FND = 710.00'T/FND = 710.00'T/FND = 711.00'T/FND = 711.00'T/FND = 712.00'T/FND = 712.00'T/FND = 713.00'T/FTG = 711.00'T/FND = 706.50'T/FND = 708.50'T/FND = 708.50'T/FND = 710.00'T/SLAB = 711.20'
T/FND = 710.00'
T/FND = 711.00'
T/FND = 711.00'
T/FND = 712.00'
T/FND = 712.00'
T/FND = 713.00'
SIM
RECYCLE ROOM
BIKE STORAGE
MP-20
VAPOR MITIGATION PLANPREPARED BY:
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 1 - AREA B
VM-B.1
PROFESSIONAL
APPROVAL
LEVEL 1 RECYCLE ROOMCONNECTION TO LEVEL 2
OPEN AIR
PARKING DECK
LEVEL 2
SLAB-ON-GRADE AREA
LEVEL 2
SLAB-ON-GRADE AREA
H&H NO. KTG-001
ELAN LOSO301 VERBENA STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 24054-20-060DEVELOPER:
GREYSTAR
521 E. MOREHEAD STREETSUITE 400CHARLOTTE, NORTH CAROLINA
LEGEND
SLAB GRADE CHANGE
THICKENED SLAB
COLUMN AND FOOTING
OUTDOOR OR OPEN AIR SPACE
PROPOSED TOP OF SLAB ELEVATION (TOS). REFER TO STRUCTURAL
CONSTRUCTION DRAWINGS FOR FINAL ELEVATIONS.
EXTENT OF VAPOR LINER
HORIZONTAL COLLECTION PIPING OR SOIL GAS COLLECTOR MAT
3" DIA SCH 40 SOLID PVC PIPE
2" DIA SOLID PVC PRESSURE MONITORING POINT WITH FLUSH-MOUNTED COVER(POSITION INTAKE MINIMUM 5-FT FROM EXTERIOR FOOTING)
SUB-GRADE VERTICAL WALL WITH VAPOR LINER (REFER TO DETAIL 19/VM-1A)
MP-16
708.00
VM-CD.1
VM-A.1
TERMINATE VAPOR LINER12" PAST MITIGATED AREA(OR AS SPECIFIED BYDESIGN ENGINEER) (TYP)
6
VM-1
24
VM-1A
21
VM-1A
12
VM-1
23
VM-1A
23
VM-1A
21
VM-1A
20
VM-1A
REVISIONS
REV DATE DESCRIPTION
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A1.1A1.1A2.2A1.1A1.1A1.1METAL STAIR BYSPECIALTY ENGINEER
SIM
SEE S2-30.4 FOR LEVEL2 FRAMING PLAN
B4.1 A1.1ATYP A1.1 A1.1 A2.2
A2.3
A1.2
B4.1 A3.1S1.1A1.1A1.1A1.1ELEV 2
STAIR G2
SIM SIM
SEE S2-30.3 FORLEVEL 2 FRAMINGPLANFLOOR JOINTS INUNIT FLOOR SLAB
SIM
T/CIP WALL= 712.50'
SIM
ELEV. 5
SIM
SIMFDFDDRIVE AISLE RAMP UPAREAWAYAREAWAY ELEC
ELEC
MECH TEL
TEL
ELEV LOBBY
T
T
F.H.C. +STANDPIPE
F.E.C.
F.E.C.
F.E.C.
F.E.C.
F.E.C.
F.E.C.F.E.C.
F.E.C.
ELEV 2
TSTS
TS TS MECHF.E.C.
F.E.C.
F.E.C.
E-16
E-15
E-18
E-17
E-19
E-20
MP-22
MP-25
MP-26
MP-27
MP-24
MP-23
TMP-8
TMP-10
MP-21
TMP-9
VAPOR MITIGATION PLANPREPARED BY:
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 2 - AREA B
VM-B.2
PROFESSIONAL
APPROVAL
LEVEL 1 RECYCLE ROOMCONNECTION TO LEVEL 2
LEVEL 1
SLAB-ON-GRADE AREA
OPEN AIRPARKING DECK
H&H NO. KTG-001
ELAN LOSO301 VERBENA STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 24054-20-060DEVELOPER:
GREYSTAR
521 E. MOREHEAD STREETSUITE 400CHARLOTTE, NORTH CAROLINA
LEGEND
SLAB GRADE CHANGE
THICKENED SLAB
COLUMN AND FOOTING
OUTDOOR OR OPEN AIR SPACE
PROPOSED TOP OF SLAB ELEVATION (TOS). REFER TO STRUCTURAL
CONSTRUCTION DRAWINGS FOR FINAL ELEVATIONS.
EXTENT OF VAPOR LINER
HORIZONTAL COLLECTION PIPING OR SOIL GAS COLLECTOR MAT
3" DIA SCH 40 SOLID PVC PIPE
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH EXHAUST IDENTIFICATION NUMBER(REFER TO DETAIL NUMBER 30 ON SHEET VM-1A)
2" DIA SOLID PVC PRESSURE MONITORING POINT WITH FLUSH-MOUNTED COVER(POSITION INTAKE MINIMUM 5-FT FROM EXTERIOR FOOTING)
1" DIA SOLID PVC TEMPORARY MONITORING POINT
(POSITION INTAKE MINIMUM 5-FT FROM EXTERIOR FOOTING)
SUB-GRADE VERTICAL WALL WITH VAPOR LINER (REFER TO DETAIL 19/VM-1A)
MP-18
E-17
708.00
LEVEL 1
SLAB-ON-GRADE AREA
TERMINATE VAPOR LINER12" PAST MITIGATED AREA(OR AS SPECIFIED BYDESIGN ENGINEER) (TYP)
13
VM-1
3/30
VM-1/1A
27
VM-1A
22
VM-1A
21
VM-1A
21
VM-1A
23
VM-1A
23
VM-1A
22
VM-1A
19
VM-1A
28
VM-1A 3/30
VM-1/1A
3/30
VM-1/1A
16
VM-1A
5
VM-1
24
VM-1A26
VM-1A
21
VM-1A
27
VM-1A
REVISIONS
REV DATE DESCRIPTION
0 01/05/22 DEQ SUBMISSION
1 02/28/22 RESUBMISSION
DATE: 02-28-22
02/28/22
TMP-8
29
VM-1A
29
VM-1A
S:\AAA-Master Projects\KTGY Architects\KTG-001 Elan LoSo VIMP\Figures\VIMP Design_R1.dwg, 2/25/2022 12:32:53 PM, DWG To PDF.pc3
B5.3
ELEV 2
STAIR G2
T/FND = 708.00'T/FND = 709.00'T/FND = 707.00'T/FND = 708.00'T/FND = 706.00'T/FND = 707.00'T/FND = 708'-0"
T/FND = 707'-0"T/FND = 705'-0"T/FND = 708'-0"T/FND = 707'-0"T/FND = 708'-0"T/FND = 711'-0"T/FND = 710'-0"SIMSIM
SIM
B5.2 S1.1T/FND = 705.00'T/FND = 706.00'T/FND = 709.00'T/FND = 710.00'T/FND = 710.00'T/FND = 711.00'T/FND = 711.00'T/FND = 712.00'T/FND = 712.00'T/FND = 713.00'S1.1 B5.3
B2
.
1
A6.1
SLAB ON GRADE PERSHEET NOTE #20
ELEV 2
STAIR 3
T/FND = 700.00'T/FND = 701.00'T/FND = 705'-0"T/FND = 708'-0"T/FND = 707'-0"S1.1 B5.2 S1.1A2.2S1.1
B5
.
1
S1
.
1
A5
.
1
SEE DETAIL 4/S3-01FOR THICKENED SLABAT STAIR CONNECTION
STAIR ON GRADEPER 12/S3-02STAIR ON GRADE,SEE 12/S3-02
SIM
SIM
ELEC
TS
MECH TS
MECHTS
TS
F.E.C.
POOL EQUIPMENT
MOVEABLEWATER RM STAIR 3
TS
MECH TS
TS
TS
F.H.C. +STANDPIPE
F.E.C.
F.E.C.
F.E.C.
F.E.C.
7.81%8.00%CANOPY ABOVE
POOL EQUIPMENT
E-10
E-11
E-12
E-13
MP-14 MP-16
MP-17
MP-18
TMP-7
MP-15
VAPOR MITIGATION PLANPREPARED BY:
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology
VAPOR INTRUSIONMITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 1 - AREA C & D
VM-CD.1
PROFESSIONAL
APPROVAL
OPEN AIR
PARKING DECK
COURT YARD
TERRACE LEVEL
SLAB-ON-GRADE AREA
LEVEL 2
SLAB-ON-GRADE AREA
H&H NO. KTG-001
ELAN LOSO301 VERBENA STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 24054-20-060DEVELOPER:
GREYSTAR
521 E. MOREHEAD STREETSUITE 400CHARLOTTE, NORTH CAROLINA
LEGEND
SLAB GRADE CHANGE
THICKENED SLAB
COLUMN AND FOOTING
OUTDOOR OR OPEN AIR SPACE
PROPOSED TOP OF SLAB ELEVATION (TOS). REFER TO STRUCTURAL
CONSTRUCTION DRAWINGS FOR FINAL ELEVATIONS.
EXTENT OF VAPOR LINER
HORIZONTAL COLLECTION PIPING OR SOIL GAS COLLECTOR MAT
3" DIA SCH 40 SOLID PVC PIPE
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH EXHAUST IDENTIFICATION NUMBER(REFER TO DETAIL NUMBER 30 ON SHEET VM-1A)
2" DIA SOLID PVC PRESSURE MONITORING POINT WITH FLUSH-MOUNTED COVER(POSITION INTAKE MINIMUM 5-FT FROM EXTERIOR FOOTING)
1" DIA SOLID PVC TEMPORARY MONITORING POINT
(POSITION INTAKE MINIMUM 5-FT FROM EXTERIOR FOOTING)
SUB-GRADE VERTICAL WALL WITH VAPOR LINER (REFER TO DETAIL 19/VM-1A)
MP-11
E-12
708.00
VM-B.1
VM-E.1
TERMINATE VAPOR LINER12" PAST MITIGATED AREA(OR AS SPECIFIED BY
DESIGN ENGINEER) (TYP)
5
VM-1
3/30
VM-1/1A
27
VM-1A
6
VM-1
16
VM-1A
21
VM-1A
21
VM-1A
19
VM-1A
24
VM-1A
25
VM-1A
3/30
VM-1/1A
3/30
VM-1/1A
12
VM-1
BREEZEWAY15
VM-1
TERMINATE VAPOR LINER12" PAST MITIGATED AREA(OR AS SPECIFIED BYDESIGN ENGINEER) (TYP)
VM-E.1
REVISIONS
REV DATE DESCRIPTION
0 01/05/22 DEQ SUBMISSION
1 02/28/22 RESUBMISSION
DATE: 02-28-22
02/28/22
TMP-7
29
VM-1A
S:\AAA-Master Projects\KTGY Architects\KTG-001 Elan LoSo VIMP\Figures\VIMP Design_R1.dwg, 2/25/2022 12:32:04 PM, DWG To PDF.pc3
ELEV 3
TS
MECH TS
ELEC
TS
TS
COMPACTOR RM
LOADING VESTIBULE
BLDG MAINTENANCE
RESTROOM
698.33
TRASH RM
693.85
UNIT A1.1
UNIT A8.1 TYPE A
UNIT A7.1
UNIT A1.1
UNIT S1.1
STAIR 4
ELEV 3
TS
MECH TS
MECH
ELEVLOBBY
ELEC
MECH
UNIT A1.1 UNIT A1.1
UNIT A2.2
TS
TS
COMPACTOR RM
BLDG MAINTENANCE
RESTROOM
698.33
TRASH RM
693.85
FD
FD
F.E.C.
F.E.C.
F.E.C.
F.E.C.
F.E.C.
F.E.C.
UNIT S1.1
UNIT S1.1
UNIT S1.1
UNIT B6.1
UNIT A1.1
UNIT A8.1 TYPE A
UNIT A7.1
A1
.
1
S1
.
1
A1
.
1
A
8
.
1
TY
P
E

A
SLAB ON GRADE PERSHEET NOTE #21
EL
E
V

3
A
7
.
1
T/FTG = 697.33'
T/FTG = 697.33'
T/FTG = 697.33'
T/SLAB = 693.85'
T/SLAB = 693.00'
T/CURB = 699.67'T/FND = 692.00'T/FND = 690.00'T/FTG = 692.00'T/FND = 697.33'T/FND = 699.00'T/FND = 699.00'T/FND = 700.00'A3.1A1.1B6.1
S1.1S1.1A2.2B4
.
1
SLAB ON GRADE PERSHEET NOTE #21
EL
E
V

3
STAIR 4
T/MAT = 690.00'T/FND = 690.00'T/FND = 692.00'
T/FTG = 697.33'
T/FTG = 697.33'
T/FTG = 697.33'
T/SLAB = 693.00'T/FND = 692.00'T/FND = 690.00'T/F
N
D

=

6
9
3
.
0
0
'
T/
F
N
D

=

6
9
2
.
0
0
'T/FND = 697.33'T/FND = 698.00'T/FND = 698.00'T/FND = 699.00'T/FND = 699.00'T/FND = 701.00'T/WALL = SEE CIVIL
S1.1ET-1
ET-2
ET-3
ET-4
MP-T1
MP-T2
MP-T3
MP-T5
MP-T6
TMP-T1
TMP-T2
MP-T4
H&H NO. KTG-001
VAPOR MITIGATION PLANPREPARED BY:
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology
VAPOR INTRUSIONMITIGATION SYSTEM
PLAN VIEW LAYOUT
TERRACE LEVEL -
AREA D & EELAN LOSO301 VERBENA STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 24054-20-060VM-DE.0
PROFESSIONAL
APPROVAL
LEGEND
SLAB GRADE CHANGE
THICKENED SLAB
COLUMN AND FOOTING
OUTDOOR OR OPEN AIR SPACE
PROPOSED TOP OF SLAB ELEVATION (TOS). REFER TO STRUCTURAL
CONSTRUCTION DRAWINGS FOR FINAL ELEVATIONS.
EXTENT OF VAPOR LINER
HORIZONTAL COLLECTION PIPING OR SOIL GAS COLLECTOR MAT
3" DIA SCH 40 SOLID PVC PIPE
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH EXHAUST IDENTIFICATION NUMBER(REFER TO DETAIL NUMBER 30 ON SHEET VM-1A)
2" DIA SOLID PVC PRESSURE MONITORING POINT WITH FLUSH-MOUNTED COVER(POSITION INTAKE MINIMUM 5-FT FROM EXTERIOR FOOTING)
1" DIA SOLID PVC TEMPORARY MONITORING POINT
(POSITION INTAKE MINIMUM 5-FT FROM EXTERIOR FOOTING)
SUB-GRADE VERTICAL WALL WITH VAPOR LINER (REFER TO DETAIL 19/VM-1A)
MP-T4
ET-2
DEVELOPER:
GREYSTAR
521 E. MOREHEAD STREETSUITE 400CHARLOTTE, NORTH CAROLINA
1
VM-1 708.00
LEVEL 1SLAB-ON-GRADE AREA
LEVEL 1
SLAB-ON-GRADE AREA
TERMINATE VAPOR LINER
12" PAST MITIGATED AREA
(OR AS SPECIFIED BYDESIGN ENGINEER) (TYP)
2
VM-1
5
VM-1
3/30
VM-1/1A
3/30
VM-1/1A
27
VM-1A
14
VM-1
13
VM-1
4
VM-1
26
VM-1A
24
VM-1A16
VM-1A
21
VM-1A
21
VM-1A
21
VM-1A
21
VM-1A
27
VM-1A
6
VM-1
REVISIONS
REV DATE DESCRIPTION
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DATE: 02-28-22
02/28/22
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29
VM-1A
29
VM-1A
S:\AAA-Master Projects\KTGY Architects\KTG-001 Elan LoSo VIMP\Figures\VIMP Design_R1.dwg, 2/25/2022 12:31:06 PM, DWG To PDF.pc3
EL
E
V

3
STAIR 4
A2.1
A7.1
A1.2A1.1
A4.1B2.1B5
.
5
A1
.
1
STOREFRONTSTEEL, SEEELEVATION.
SLAB ON GRADE PERSHEET NOTE #20
SLAB ON GRADE PERSHEET NOTE #20
FOOTING TO BE LOCATEDAT CENTRAL COLUMN FORSPIRAL STAIRT/FND = 699.00'T/FND = 701.00'T/FND = 701.00'T/FND = 703.00'T/WALL = SEE CIVIL
EL
E
V

3
A2.2S1.1S1.1B5
.
5
A1
.
1
B
5
.
1
B
5
.
1
SLAB ON GRADE PERSHEET NOTE #20
LOUNGE
PASSAGE
MECH
W.H.
MEP
FITNESS
POOLWOMEN'S
POOLMEN'S
LIGHT THERAPYLOUNGE
CONFERENCE
SPIN ROOM
CORRIDOR
CLUB
ELEV 3
STAIR 4
?
ELEV 4
TS
TRASH
ELEVLOBBY
MECH TS
MECH
MECHELEC
MECH
TS
TS
TS
F.E.C.
F.E.C.
F.E.C.
F.E.C.
F.E.C.
F.E.C.
F.E.C.
F.E.C.
F.E.C.
F.E.C.
CANOPY ABOVE
CANOPY ABOVE
POOL EQUIPMENT
MECH
W.H.
TS
TS
TS
TS
TS
UC MIRCO
WARMINGDRAWER
ELEV 3
TS
TRASH
ELEVLOBBY
MECH TS
MECH
ELEC
TS
TS
TS
F.E.C.
F.E.C.
F.E.C.
CANOPY ABOVE
CANOPY ABOVE
POOL EQUIPMENT
MECH
W.H.
E-6
E-7
E-8
E-9
E-14
MP-9
MP-11
MP-12
MP-18
MP-19
MP-13
MP-10
TMP-5
TMP-6
VAPOR MITIGATION PLANPREPARED BY:
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 1 - AREA E
VM-E.1
PROFESSIONAL
APPROVAL
COURTYARD
TERRACE LEVELSLAB-ON-GRADE AREA
TERRACE LEVELSLAB-ON-GRADE AREA
H&H NO. KTG-001
ELAN LOSO301 VERBENA STREETCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 24054-20-060DEVELOPER:
GREYSTAR
521 E. MOREHEAD STREETSUITE 400CHARLOTTE, NORTH CAROLINA
LEGEND
SLAB GRADE CHANGE
THICKENED SLAB
COLUMN AND FOOTING
OUTDOOR OR OPEN AIR SPACE
PROPOSED TOP OF SLAB ELEVATION (TOS). REFER TO STRUCTURAL
CONSTRUCTION DRAWINGS FOR FINAL ELEVATIONS.
EXTENT OF VAPOR LINER
HORIZONTAL COLLECTION PIPING OR SOIL GAS COLLECTOR MAT
3" DIA SCH 40 SOLID PVC PIPE
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH EXHAUST IDENTIFICATION NUMBER(REFER TO DETAIL NUMBER 30 ON SHEET VM-1A)
2" DIA SOLID PVC PRESSURE MONITORING POINT WITH FLUSH-MOUNTED COVER(POSITION INTAKE MINIMUM 5-FT FROM EXTERIOR FOOTING)
1" DIA SOLID PVC TEMPORARY MONITORING POINT
(POSITION INTAKE MINIMUM 5-FT FROM EXTERIOR FOOTING)
SUB-GRADE VERTICAL WALL WITH VAPOR LINER (REFER TO DETAIL 19/VM-1A)
MP-7
E-8
708.00
VM-A.1
VM-B.1
VM-CD.1
TERMINATE VAPOR LINER
12" PAST MITIGATED AREA
(OR AS SPECIFIED BY
DESIGN ENGINEER) (TYP)
2
VM-1
5
VM-1
3/30
VM-1/1A
27
VM-1A
9
VM-1
21
VM-1A
10
VM-1
3/30
VM-1/1A
12
VM-1
14
VM-1
14
VM-1
21
VM-1A
25
VM-1A
27
VM-1A
1
VM-1
5
VM-1 27
VM-1A
3/30
VM-1/1A
VM-CD.1
REVISIONS
REV DATE DESCRIPTION
0 01/05/22 DEQ SUBMISSION
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DATE: 02-28-22
02/28/22
TMP-5
29
VM-1A
S:\AAA-Master Projects\KTGY Architects\KTG-001 Elan LoSo VIMP\Figures\VIMP Design_R1.dwg, 2/25/2022 12:32:22 PM, DWG To PDF.pc3

Attachment C-1

VaporBlock 20 (VBP-20) 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.

Attachment C-2

Drago Wrap Product Specification Sheets & Installation Instructions

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

Attachment C-3

Big Foot Slotted PVC Pipe Product Specification Sheet

Attachment C-4

Empire Wind-Turbine Ventilator Specification Sheet

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

Attachment C-5

Zurn Industries Floor Clean-out Product Specification Sheet

Attachment C-6

Soil Gas Collector Mat Product Information and Installation Guide
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