25026-21-060_Vapor Intrusion Mitigation Plan_Rev 1

Vapor Intrusion Mitigation Plan
Revision 1

Camden Exchange
Clawson Radiator II Brownfields Property
1600 and 1614 Camden Road
Brownfields Project No. 25026-21-060

H&H Job No. SLS-006
January 11, 2023

#C-1269 Engineering #C-245 Geology
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Vapor Intrusion Mitigation Plan – Rev. 1 Clawson Radiator II 1600 and 1614 Camden Road Charlotte, North Carolina Brownfields Project No. 25026-21-060 H&H Job No. SLS-006
Table of Contents
1.0 Introduction ................................................................................................................ 1
1.1 Background............................................................................................................2
1.2 Vapor Intrusion Evaluation ...................................................................................4
1.3 Engineer’s Certification .........................................................................................6
2.0 Design Basis ................................................................................................................ 7
2.1 Base Course Layer and Vapor Barrier ...................................................................8
2.2 Horizontal Collection Piping and Vertical Riser Piping .......................................9
2.3 Monitoring Points ................................................................................................10
2.4 General Installation Criteria ................................................................................11
3.0 Quality Assurance / Quality Control ...................................................................... 13
4.0 VIMS Effectiveness Testing .................................................................................... 15
4.1 Influence Testing .................................................................................................15
4.2 Pre-Occupancy Sub-Slab Soil Vapor Sampling ..................................................16
4.3 VIMS Effectiveness Results ................................................................................17
5.0 VIMS Effectiveness Monitoring ............................................................................. 20
6.0 Future Tenants & Building Uses ............................................................................ 21
7.0 Reporting .................................................................................................................. 22

Figures
Figure 1 Site Location Map
Figure 2 Site Map
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Attachments

Attachment A Vapor Intrusion Mitigation System Drawings – Sheets VM-1, VM-1A,
VM-1B, VM-2, VM-3 and VM-4, dated January 11, 2023
Attachment B Vapor Intrusion Assessment Data Summary (Excerpts)
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 Zurn Industries Floor Clean-out Product Specification Sheet
Attachment C-5 Wal-Rich Corporation PVC Termination Screen
Attachment C-6 Empire Wind Turbine Ventilator Specification Sheet

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Vapor Intrusion Mitigation Plan – Rev. 1 Clawson Radiator II 1600 and 1614 Camden Road Charlotte, North Carolina Brownfields Project No. 25026-21-060 H&H Job No. SLS-006 1.0 Introduction On behalf of PR/SC Camden Exchange Owner, LP, Hart & Hickman, PC (H&H) has prepared
this Vapor Intrusion Mitigation Plan (VIMP) that describes installation of a vapor intrusion
mitigation system (VIMS) for the redevelopment of the Clawson Radiator II Brownfields
property (Brownfields No. 25026-21-060) located at 1600 Camden Road in Charlotte,
Mecklenburg County, North Carolina (Site). A Site location map is provided as Figure 1, and
the Site and surrounding area are shown in Figure 2. The VIMS design drawings are included as
Attachment A.

The Site consists of five contiguous parcels of land (Mecklenburg County Parcel Identification
Nos. 12306123, 12306112, 12306111, 12306109, and 12306110) totaling approximately 0.86
acre. The Site appears to have been developed for commercial purposes as early as the 1940s.
According to information provided by ECS Southeast (ECS), historical commercial facilities on
the Site have included a gas station, restaurant, and office building. The Site is currently
developed with a single-story approximate 3,600-square foot (sq ft) vacant building and a two-
story approximate 6,950-sq ft building used as commercial office space. Remaining portions of
the Site consist of paved parking areas and landscaped areas.

To address potential environmental concerns associated with the Site, the Prospective Developer
(PD), PR/SC Camden Exchange Owner, LP, elected to enter the Site into the North Carolina
Department of Environmental Quality (DEQ) Brownfields Program and received eligibility in a
letter dated June 30, 2021. It is H&H’s understanding that a Notice of Brownfields Property
(Brownfields Agreement) is currently in development between the PD and DEQ, and that the
name of the PD on the Brownfields Agreement application was 1600 Camden MF Holdings,
LLC, but the PD submitted an amendment to change the PD to the above entity. Note, Parcel
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12306110, located on the southeastern portion of the Site, is currently subject to an existing
Brownfields Agreement, known as Camden Road Brownfields Property (Brownfields No.
07018-03-060). It is expected that the Camden Road Brownfields Agreement will be superseded
by the pending Brownfields Agreement for the Clawson Radiator II Brownfields property.

Current redevelopment plans for the Site include razing the existing Site buildings and
constructing a thirty story multi-use (retail, office, and residential) building. The proposed
development is called Camden Exchange. Site grading and redevelopment activities are
expected to begin in late 2022 or early 2023.

The multi-use high-rise building will consist of total enclosed occupiable ground floor space of
approximately 21,900 sq ft. The ground floor (Level 1) of the proposed building will be on
grade and will consist of commercial spaces including retail, open-air loading zone, open-air
parking deck entrance, lobby, amenity, mechanical, and building services areas. Levels 2
through 4 will consist of open-air parking, future commercial office space, amenity spaces, and
utility areas. Additionally, Levels 5 through 9 will consist of open-air parking and residential
living space, and Levels 9 through 30 will consist of residential living space, amenity spaces, and
mechanical/utility rooms.

1.1 Background

ECS performed soil, groundwater, exterior soil gas, and sub-slab vapor sampling assessment
activities at the Site to evaluate the potential for impact attributable to historical industrial and
commercial uses at the Brownfields property and on nearby off-Site properties. Assessment
activities included Environmental Site Assessment (ESA) and Brownfields Assessment activities
conducted in 2021. The ESA activities are summarized in the ECS Report of Environmental
Assessment Services, dated May 25, 2021. Brownfields assessment activities are summarized in
the ECS Brownfields Assessment Report & Receptor Survey, Revision 1.0, dated April 21, 2022.
Tabular summaries of previous assessment data and figures excerpted from ECS reports are
provided in Attachment B. A brief summary of the sampling activities and results provided by
ECS are included in the following paragraphs.
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Soil Sampling
In December 2021, soil samples were collected for laboratory analysis to evaluate the potential
for impacts in areas of the Brownfields property planned for redevelopment with the mixed-use
high-rise building. Soil sampling results have identified several metals at concentrations greater
than their respective DEQ Division of Waste Management (DWM) Preliminary Soil
Remediation Goals (PSRGs). Of these, arsenic, cadmium, lead, and hexavalent chromium were
detected at concentrations above their respective Residential PSRGs in the soil samples collected
from the Site. In addition, results indicated concentrations of benzene, naphthalene,
benzo(a)anthracene, and benzo(a)pyrene above their respective Residential PSRGs in one or
more of the soil samples collected. Chlorinated solvent compounds including
tetrachloroethylene (PCE) and trichloroethylene (TCE) have not been identified at concentrations
above the laboratory method detection limits in soil samples collected at the Site. Furthermore,
the metal mercury was not detected above the laboratory reporting limit in the soil samples
collected from the Site.

Groundwater Sampling
Between April and December 2021, groundwater sampling activities at the Site have included
installation and sampling of temporary monitoring wells and groundwater collected from borings
using direct push technology (DPT) screen point sampler. Assessment activities also included
the advancement and sampling of three permanent monitoring groundwater wells. Results of the
groundwater sampling assessment activities identified concentrations of several VOCs above
their respective North Carolina DEQ 2L Groundwater Quality Standards (2L Standards),
including benzene, 1,2-dichloroethane, and naphthalene. Of these, benzene was detected at
concentrations above its Non-Residential Groundwater Vapor Intrusion Screen Level (VISL) and
naphthalene was detected at concentrations above its Residential VISL in one or more samples
collected from the Site. PCE was detected at an estimated concentration (laboratory J-flag value)
above its 2L Standard but below its Residential VISL in one groundwater sample collected in
April 2021. In addition, TCE was detected at an estimated concentration (laboratory J-flag
value) below its 2L Standard and Residential VISL in one groundwater sample collected in April
2021 from the DPT screen point sampler, but TCE was not detected in any of the groundwater
samples from the permanent monitoring wells.
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Soil Gas Sampling
In December 2021, five exterior soil gas samples were collected for laboratory analysis in areas
planned for redeveloped with the multi-use high-rise building. Results of the 2021 sampling
activities identified concentrations of benzene, ethylbenzene, heptane, hexane, and m&p xylenes
above their respective Non-Residential VISLs in one or more of the soil gas samples collected
from the Site. In addition, laboratory analytical results indicated concentrations of 1,2,4-
trimethylbenzene and 1,3,5-trimethylbezene above their respective Residential VISLs in one or
more samples collected from the Site. Results of the sampling activities indicated TCE was
detected in one soil gas sample at a concentration above the laboratory reporting limit but well
below the Residential VISL. PCE was also detected at an estimated concentration that is above
the laboratory method detection limit but below the laboratory reporting limit in several of the
soil gas samples collected from the Site.

Sub-Slab Vapor
In December 2021, two sub-slab vapor samples were collected for laboratory analysis in areas
planned for redevelopment with the multi-use high-rise building. Sub-slab vapor sampling
activities identified several VOCs, including dichlorodifluoromethane, toluene, and 1,2,4-
trimethylbezene at concentrations above laboratory reporting limits but below their respective
Residential VISLs. PCE was detected as an estimated concentration that is above laboratory
method detection limits but below laboratory reporting limits in one sub-slab vapor sample.
Notably, TCE was not detected above laboratory method detection limits in either of the sub-slab
vapor samples collected from the Site.

1.2 Vapor Intrusion Evaluation

As summarized in the ECS Brownfields Assessment Report, DEQ risk calculators were analyzed
for a residential and non-residential use worker scenario for the groundwater sample collected
from MW-3 and for each soil gas sample collected during the 2021 assessment activities. The
DEQ risk calculator results for the groundwater to indoor air pathway provided by ECS indicated
that for groundwater sample MW-3 (collected from the northeastern portion of the Site), the
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calculated carcinogenic and non-carcinogenic risk levels were above the acceptable DEQ risk
threshold under a residential use scenario. Under a non-residential use scenario, the calculated
non-carcinogenic risk for sample MW-3 was above the risk threshold, but the calculated
carcinogenic risk was acceptable. The DEQ risk calculator results for the soil gas to indoor air
pathway provided by ECS indicated that for sample SG-2 (collected from the central portion of
the Site), the calculated carcinogenic and non-carcinogenic risk levels were above the acceptable
DEQ risk thresholds under both residential and non-residential land use scenarios. In addition,
the risk calculations for soil gas sample SG-5 (collected from the northern portion of the Site),
indicated that for the soil gas to indoor air pathway, the calculated non-carcinogenic risk was
above the acceptable DEQ risk threshold under a residential use scenario. Risk calculator results
for soil gas samples SG-1, SG-3, and SG-4 did not indicate a carcinogenic and/or non-
carcinogenic risk level above the residential or non-residential DEQ risk thresholds.

Based on results of the 2021 assessment activities and risk calculations, there is a potential vapor
intrusion concern in the portion of the Site where the proposed mixed-use high-rise building is
proposed to be constructed. The primary constituents which contributed to the risk exceedances
in groundwater sample MW-3 and soil gas samples SG-2 and SG-5 are petroleum related
compounds, including benzene, naphthalene, heptane, and hexane. The chlorinated solvents
PCE and TCE were not detected in soil or groundwater samples above laboratory reporting
limits, and the concentrations detected in exterior and sub-slab soil gas samples did not exceed
either Residential or Non-Residential VISLs.

The Brownfields Assessment Report documenting vapor intrusion assessment conducted at the
Site in December 2021 was submitted to DEQ on April 21, 2022. Analytical data summary
tables, a sample location map, and associated risk calculations are provided in Attachment B.
Due to risk calculator results of potential vapor intrusion risks at the Site driven by petroleum
related compounds, vapor intrusion mitigation methods are warranted, and the PD will install a
VIMS below the occupiable ground-level areas of the proposed building.

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1.3 Engineer’s Certification

According to the DWM Vapor Intrusion Guidance: “Risk-based screening is used to identify
sites or buildings likely to pose a health concern, to identify buildings that may warrant
immediate action, to help focus site-specific investigation activities or to provide support for
building mitigation and other risk management options including remediation.” In addition, this
VIMP was prepared to satisfy the 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]

Trinh DeSa North Carolina PE (#044470) Hart & Hickman, PC (#C-1269)
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2.0 Design Basis

The VIMS design drawings are included in Attachment A as Sheets VM-1, VM-1A, VM-1B,
VM-2, VM-3, and VM-4 (dated September 15, 2022) and will be used to guide construction of
the VIMS. 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 that discharge at the exterior face of the parking deck and from a second-
story roof. The foundation of the building will consist of a column supported slab on grade on
Level 1 with thickened slabs and step footers in select locations. Two commercial retail spaces
(Retail A and Retail B) will be located in the northeastern and southern portions of the building.
Remaining portions of the building will contain a lobby, open-air dog run (dog park), open-air
parking entrance ramps, package/mail rooms, utility rooms, and amenity areas.

The ground floor areas of Retail A and Retail B are approximately 5,200 sq ft and 4,200 sq ft,
respectively. The ground floor space of the remaining utility and amenity areas is approximately
12,500 sq ft. Vapor intrusion mitigation measures are not warranted in the loading zone
driveway area or the parking entrance ramp because these are open-air spaces that will not be
enclosed or conditioned. Additionally, vapor intrusion mitigation measures are not warranted in
the dog run area because it is an area with continuous active ventilation provided by ventilation
fans and vents and it is not conditioned to be a living space.

The commercial retail spaces (Retail A and Retail B) are pour-back areas that will be left without
concrete and remain unfinished to allow for future tenant upfit including installation of sub-slab
utilities. Further details regarding the measures to be implemented for the pour-back areas are
included in this VIMP.

The previous assessment sampling results and risk calculations indicate that a VIMS is warranted
for this building for petroleum related compounds. Due to the lack of unacceptable
concentrations of chlorinated solvents present at the Site, trench dams, which are sometimes
installed along utility trenches to prevent air movement from Site areas with elevated
concentrations to areas with structures, are not warranted on the Site. Furthermore, the building
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footprint comprises the vast majority of the property and the proposed VIMS is designed to
prevent vapor intrusion from sub-surface features into 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 (washed/clean #57 stone, or similar high permeability stone approved
by the Engineer certifying the VIMP) below the concrete slab of the building. A vapor barrier
(vapor liner) will be installed above the base course stone layer (and directly beneath the slab).
A horizontal collection piping network will be installed within the base course stone layer prior
to placement of the vapor barrier. The horizontal vapor collection piping is discussed further in
Section 2.2. below.

The vapor barrier 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 be used. The selected vapor barrier will be
installed per manufacturer installation instructions (Attachment C). The vapor barrier will be
installed over the sub-slab clean stone to cover the areas shown on Sheet VM-1. Each vapor
barrier manufacturer recommends select sealing agents (mastics, tapes, etc.) for their product.
Therefore, and in accordance with the manufacturer installation instructions, the use of
alternative vapor barrier products not approved by the manufacturers for sealing will not be used.

The exterior edges of the vapor barrier will be attached and sealed to building footings and
subsurface concrete features utilizing the tape specified in the manufacturer instructions. Seams
within the building 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 barrier is damaged, torn, or punctured during
installation, a patch will be installed by overlaying a piece of vapor barrier 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 multiple utility penetrations are present, such as utility banks, and the use of the
tape recommended by the manufacturer is not practical or deemed as “ineffective” by the
Engineer certifying the VIMP, an alternative sealant product specified by the vapor barrier
manufacturer can be used, such as Raven Pour-N-Seal™. Following successful installation of
the vapor barrier, the finished concrete slab will be placed directly on top of the sealed vapor
barrier to further seal the seams and penetrations.

For the pour-back areas, the vapor barrier will be placed and properly sealed across areas
following installation of sub-slab horizontal collection piping. The vapor barrier will remain
without concrete cover until tenants purchase and prepare the slab in the commercial spaces.

2.2 Horizontal Collection Piping and Vertical Riser Piping

Passive sub-slab venting will be accomplished using open-ended pipes and horizontal perforated
collection piping which will collect vapor from beneath the ground floor slabs and discharge the
vapors at the exterior of the parking deck and on a second-story roof through vertical riser
piping. Sub-slab piping will consist of 3-inch diameter Schedule 40 (SCH 40) PVC slotted or
perforated piping and fittings as indicated in the design drawings. Above-slab piping will consist
of 4-inch diameter metal piping (e.g. aluminum or cast-iron) with air-tight fittings for use under
drain, waste, vent (DWV) applications. The piping layouts are shown on the design sheets
(Attachment A). Note that solid sections of VIMS piping shall maintain a minimum 1% slope
toward slotted sections to drain potential condensation water. Product specifications for slotted
horizontal collection piping are provided in Attachment C.

The VIMP includes installation of open-ended metal pipes at the discharge end of the vertical
riser piping. Discharge locations must be a minimum of 20 ft above grade, 10 ft from the
property line, and 10 ft from an operable opening (such as door or window) or air intake into the
building. The proposed discharge locations depicted in the design sheets meet these
requirements. In addition, the discharge locations are positioned to be a minimum of 10-ft away
from public areas where people may congregate. Note that discharge locations at the parking
deck and on the second-story roof depicted in the VIMS design may be repositioned within the
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requirements specified above and pending approval by the Engineer certifying the VIMP.
Product specifications for the proposed slotted PVC piping are provided in Attachment C.

At the riser exhaust locations for Risers E-1, E-2, and E-3, as an additional measure, wind
turbine ventilators such as Empire Model TV04SS (stainless steel) will be installed at the exhaust
locations (Attachment C). A passive VIMS can operate effectively without ventilators, but the
ventilators can help promote airflow from the risers to enhance the passive system. For Risers
E-4 and E-5, no ventilators are proposed due to the orientation of the discharge pipes. As an
additional measure, if an active system with electric fans is warranted in the future, an electrical
junction box or outlet will be installed near the exhaust discharge locations to allow for more
efficient installation of electric fans if warranted.

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. In
addition, several temporary monitoring points constructed with 2-inch diameter SCH 40 PVC
pipe will also be installed and used to measure sub-slab vacuum influence measurements. The
monitoring point locations are shown on design sheets (Attachment A).

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 monitoring point access ports will be
located in stairwells, mechanical rooms, or in amenity spaces. Several monitoring points will be
connected to extended sub-slab horizontal pipes which place the intakes of the monitoring points
below occupied spaces. The proposed temporary monitoring points are located in Retail A and
Retail B. The layouts of these retail areas are not yet known, so these points are will be
temporary until a tenant leases the space. Once upfit activities start, and based on the initial
influence testing, sampling results, and discussion with DEQ, permanent monitoring points may
be installed to replace these temporary points.
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If temporary monitoring points will be abandoned, the abandonment procedures will include
removal of the pipe, insertion of a vapor barrier seal such as with Raven Pour-N-Seal™ or
another design engineer approved sealant, and application of a concrete seal to match the
existing slab and prior to installation of the final flooring. Product specifications for the
proposed floor cleanout covers are provided in Attachment C. In order to reduce VOCs from
construction materials in future sub-slab vapor samples submitted for laboratory analysis, the
monitoring point components will be connected using threaded connections or approved low
VOC containing products (Section 2.4).

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 Engineer certifying the VIMP. The replacement point(s) shall consist of
one of the specified designs on the design sheets. 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
type of monitoring point installed will be documented in as-built drawings.

2.4 General Installation Criteria

The VIMS piping and monitoring points 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 monitoring points. 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.

Pour-back Areas
In the commercial pour-back areas, the spaces shall not be accessible by residents and will
remain secured until tenant(s) are undergoing upfit activities. If foot-traffic is expected in
commercial tenant spaces prior to upfit activities, controls such as wooden boards and/or decking
will be placed in areas of foot-traffic. Temporary wooden boards and/or decking will also be
installed during tenant upfit activities to minimize damages to the vapor barrier from
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construction workers. In addition, signage that indicates precautions should be taken while
working in the areas with exposed barriers will be posted in prominent locations in the areas of
tenant spaces.

Future tenant upfit and completion of ground-level components of the retail spaces will likely
include installation of sub-slab utilities within the gravel base. Utility installations will likely
include removal of certain sections of the vapor barrier as needed to place new sub-slab utility
conduits and slab penetrations, but such work is not expected to include notable trenching or
other major disturbance to Site soil. In addition, tenant utility installations are not expected to
interfere or disturb the VIMS horizontal or vertical piping network.

Safety Data Sheets
For each phase of construction (above and below slab), construction contractors and sub-
contractors shall use “low or no VOC” products and materials that could potentially contain
compounds of concern. Furthermore, the construction contractors shall not use products
containing the compounds PCE or TCE. Prior to submittal of a VIMS Installation Completion
Report, the construction contractor and sub-contractors shall be directed to provide safety data
sheets (SDSs) for products and materials used during construction. SDSs provided by the
contractor and sub-contractors, including but are not limited to building products, will be
included in the VIMS Installation Completion Report.
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3.0 Quality Assurance / Quality Control
For quality assurance and quality control (QA/QC) purposes, inspections will be conducted
during each phase of VIMS installation. The components that require inspection are outlined
below:
(1) Inspection of vapor barrier along the sub-grade elevator pits and applicable vertical
retaining walls prior to backfilling;
(2) Inspection of the base course stone layer, sub-slab piping layout, and monitoring points
prior to installing the vapor barrier;
(3) Inspection of the vapor barrier below slab areas prior to pouring concrete;
(4) Inspection of above-grade vertical riser piping; and
(5) Inspection of wind ventilators and riser pipe connections.

Each component of the VIMS shall be inspected and approved by the design engineer, or the
engineer’s designee, prior to being covered. Inspections will be combined, when possible,
depending on construction sequencing and schedule. The inspections will include field logs and
photographs for each section of slab. Locations where multiple penetrations are present and
where products such as Pour-N-Seal™ are used will be photographed and noted on the field logs.
To minimize potential preferential pathways through the slab, contractors will not use hollow
piping to support utilities in preparation for concrete pours. Contractors will be instructed to
remove hollow piping observed during the field inspections. The contractor shall notify the
engineer certifying the VIMP, or his/her designee, with a 48-hour notice prior to a planned
inspection, and H&H will provide a subsequent 48-hour notice to DEQ for the pending
inspection.

Additional Pour-Back Area Measures
The VIMS is considered functional without a completed floor slab, pending acceptable sub-slab
sampling and influence testing results as outlined in this VIMP. In order to maintain the
functionality of the vapor barrier, monthly visual inspections of the vapor barrier in pour-back
areas will be completed. The inspection will document the condition of the vapor barrier and
any repairs required based on observations. If the vapor barrier is damaged at any time before
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the concrete floor slab is poured, the design engineer must be notified, the vapor barrier must be
repaired in accordance with installation guidelines provided in Attachment C, and the repair must
be inspected by the design engineer. A log of the inspections will be maintained including
inspection dates, results and observations, and photographs. If repairs are made, a description of
the repairs will be recorded.

The current property manager will be instructed to report activities in the pour-back areas (Retail
A and Retail B) that impact or may impact the vapor barrier to the design engineer. DEQ will be
notified by the design engineer when tenants are identified. The PD will also be instructed to
contact the design engineer to perform the inspections described above to confirm the VIMS is
not impacted or modified during the tenant upfit activities. If notable changes to the VIMS
piping are needed for tenant upfit, then the changes or modifications will be reviewed by the
design engineer and submitted to DEQ for approval prior to implementation.

The concrete slab will not be poured in a tenant space until VIMS components have been
repaired and restored to the satisfaction of the design engineer and in accordance with the DEQ-
approved VIMP and approved addendums (if warranted). Specific VIMS inspections and DEQ
notification procedures noted above will be completed for each pour-back area as upfit activities
are completed. In addition, following completion of each concrete pour, influence testing will be
completed for the poured section in accordance with procedures outlined in Section 4.1

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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 barrier, 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. Pressure differential will be
measured at extraction fan locations, and each monitoring point will be checked for vacuum. 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. 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.

The pour-back areas in the commercial spaces will also be included in the pre-occupancy
influence testing. Influence testing will be conducted following the installation of vapor barrier
prior to the pouring of concrete slab. Furthermore, following tenant upfit activities (Section 3.0),
additional influence testing of the completed pour-back areas will be conducted. The initial
influence testing results in the pour-back areas will be reported to DEQ in the VIMS Installation
Completion report, and subsequent testing results will be reported to DEQ in tenant upfit
completion addendum reports.

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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 of samples collected in the footprint of the VIMS of the proposed building will be used to
separately evaluate risk to future occupants of the building. One sub-slab vapor sample is
proposed within each retail space, and seven sub-slab vapor samples are proposed within the
amenity/office area of the VIMS for a total of nine samples. Sub-slab vapor samples collected in
commercial retail spaces will be collected from monitoring points TMP-A1 and TMP-B1.
Office/amenity area VIMS sub-slab vapor samples will be collected from monitoring points
MP-1, MP-2, MP-3, MP-4, MP-6, MP-7, and MP-8. 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.

Prior to sample collection, leak tests will be performed at each 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
recorded by sampling personnel. The vacuum in each canister at the conclusion of the sampling
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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 volatile organic
compounds (VOCs) by EPA Method TO-15 including naphthalene. 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 Non-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 6.0). 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 non-residential scenario for each
sample location based on the lack of residential living spaces on Floors 1 through 4. 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. Based on the risk calculator results, if risk levels are elevated, the
following steps are anticipated to be conducted:

• In the event that calculated cumulative risks for a non-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 soil 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.
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• In the event that calculated cumulative risks for a non-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
vapor intrusion, considerations will be made to convert the system from a passive system
to an active system.

Indoor Air Sampling (if warranted)
If unacceptable risk levels are detected in the sub-slab soil gas samples (see above), then indoor
air samples will be collected in accordance with the DWM VI Guidance. The locations of the
indoor air samples will be selected based on areas where sub-slab soil gas results indicated risk
exceedances. Prior to the sampling, the proposed indoor air sample locations will be provided to
DEQ for review. During the indoor air sampling (if warranted), doors to the building exterior
and parking garage will be closed.

The indoor air samples and background air sample will be collected using individually-certified
6-liter stainless steel Summa canisters connected to in-line flow controllers equipped with a
vacuum gauge. The flow controllers will be set by the laboratory to allow the samples to be
collected over an approximately 8-hour period for a non-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
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a qualified laboratory for analysis of select VOCs by EPA Method TO-15. The select list will be
based upon the compounds detected in historical samples collected from the Site across all media
and the available laboratories analytical certifications. If indoor air sampling is warranted, the
select list will be provided to DEQ prior to the sampling event. 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 Non-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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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 on the exterior of the parking
deck and a second-story roof. 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.
Actual fans to be used will be selected based on the results of the influence testing discussed in
Section 4.0.

Post-construction VIMS effectiveness monitoring will include semi-annual sub-slab soil gas
sampling at the locations indicated in Section 4.0. The number of post-occupancy sampling
locations may be adjusted, based on the pre-occupancy sampling results and upon DEQ’s
approval. The sampling will be conducted using the procedures described in this VIMP with the
first post-occupancy event occurring approximately 6 months after occupancy of the building. If
post-construction semi-annual sampling results indicate consistent or decreasing concentrations
within acceptable risk levels after two events, a request to modify or terminate sampling will be
submitted for DEQ review with DEQ written approval required prior to modifications to the
sampling frequency and locations.
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6.0 Future Tenants & Building Uses
The future use of the proposed Site buildings includes one high-rise mixed-use (commercial &
residential on upper floors) building with open-air parking and commercial areas located on
Levels 1 through 4, open-air parking and residences on Levels 5 through 9, and residences
located on Levels 9 through 30. After occupancy of the Site buildings, the building owner or
property management group will maintain or contract for maintenance of the vapor mitigation
system. If vapor mitigation components are damaged or need to be altered for building
renovations, the building management will be instructed to contact the maintenance department.
The maintenance department shall contact a North Carolina licensed Professional Engineer to
oversee or inspect the 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.

Future VIMS maintenance and upkeep will be the responsibility of the building owner or
property management group. As part of the standard annual Land Use Restriction Update
submittal that is 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 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. In addition, for the pour-back areas, addendum reports documenting subsequent
inspections and influence testing after tenant upfit activities are complete will be submitted under
separate cover to DEQ. The report(s) 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 relevant 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 fully 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 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 compliance
approval with submittal of a data summary in lieu of the full VIMS Installation Completion
Report based on timing of the proposed building occupancy date and report review times.

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

USGS The National Map: National Boundaries Dataset, 3DEP ElevationProgram, Geographic Names Information System, National HydrographyDataset, National Land Cover Database, National Structures Dataset,and National Transportation Dataset; USGS Global Ecosystems; U.S.Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data;U.S. Department of State Humanitarian Information Unit; and NOAANational Centers for Environmental Information, U.S. Coastal ReliefModel. Data refreshed August, 2019.
SITE LOCATION MAP
CLAWSON RADIATOR II BROWNFIELDS PROPERTY
1600 & 1614 CAMDEN ROADCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 25026-21-060
DATE: 9-12-22
JOB NO: SLS-006
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
Path: S:\AAA-Master Projects\Stiles (SLS)\SLS-006 - Camden & W. Park\Figures\Figure-1.mxd
N
U.S.G.S. QUADRANGLE MAP
CHARLOTTE EAST, NORTH CAROLINA 2019CHARLOTTE WEST, NORTH CAROLINA 2019
QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC)
SITE
REVISION NO. 0
JOB NO. SLS-006
DATE: 9-12-22
FIGURE NO. 2
CLAWSON RADIATOR II BROWNFIELDS PROPERTY
1600 & 1614 CAMDEN ROAD
CHARLOTTE, NORTH CAROLINA
BROWNFIELDS PROJECT NO. 25026-21-060
SITE MAP
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
PARCEL BOUNDARY
LYNX LIGHT RAIL
PROPOSED BUILDING FOOTPRINT -
LEVEL 1 ENCLOSED SPACE
PROPOSED BUILDING FOOTPRINT -
GARAGE ENTRANCE AND LOADING DOCK
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
NOTES:
1.AERIAL IMAGERY AND PARCEL DATA OBTAINED FROM
MECKLENBURG COUNTY (2022).
2.SITE DEVELOPMENT PLAN PROVIDED BY HASTINGS,
DATED 6-14-2022.
W.
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Attachment A
Vapor Intrusion Mitigation System Drawings
Sheets VM-1, VM-1A, VM-1B, VM-2, VM-3 and VM-4
Dated January 11, 2023
1'-0"
VAR.
1'-0"
SLOPE DN
TYP.
RAMP UP RAMP UP
0'-8"
0'-8"
2'-0"
1'-0"
VAR.2'-5"
2'-6"
1'-4"
3'-0"
5'-0"
2'-0"
3'-0"
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MP-2
MP-1
MP-3
MP-8
E-3
E-1
E-2
MP-4
MP-6
MP-5
MP-7
TMP-B1
TMP-A1
E-4 E-5
MP-9
TMP-A2
TMP-B2
TMP-A3
H&H NO. SLS-006
VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 1
DEVELOPER:
STILES / CATALYST
201 E. LAS OLAS BOULEVARD
FORT LAUDERDALE, FLORIDA
/
1600 CAMDEN ROAD, SUITE 200
CHARLOTTE, NORTH CAROLINA
VM-1
PROFESSIONAL
APPROVAL
REVISIONS
REV DATE DESCRIPTION
0 09/15/22 DEQ SUBMISSION
1 01/11/23 DEQ REV 1 SUBMISSION
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DATE: 01-11-23
LEGEND
EXTENT OF VAPOR BARRIER
OUTDOOR OR OPEN-AIR SPACE
PROPOSED TURN-DOWN SLAB
4" DIA METAL VERTICAL RISER AND EXHAUST IDENTIFICATION NUMBER
HORIZONTAL COLLECTION PIPING
3" DIA SCH 40 SOLID PVC PIPE
2" DIA SOLID PVC PRESSURE MONITORING POINT WITH FLUSH-MOUNTED COVER
2" DIA SOLID PVC TEMPORARY PRESSURE MONITORING POINT
20
VM-3
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-2, VM-3, AND VM-4.
2.STANDARD SLIP JOINT OR SOLVENT WELDED SCH 40 PVC FITTINGS SHALL BE
USED ON HORIZONTAL COLLECTION PIPE.
3.THE END OF EACH HORIZONTAL COLLECTION PIPE AND EACH MONITORING
POINT SHALL CONTAIN A PVC END CAP OR TERMINATION SCREEN PER
SPECIFICATIONS #3 & #7.
4.THE INTAKE OF THE MONITORING POINTS SHALL BE A MINIMUM 5 FT FROM
EXTERIOR WALLS OR FOOTINGS.
E-1
MP-1
TMP-1
MONITORING POINT
STEP-DOWN TO
CORRIDOR
20
VM-3
16
VM-3
17
VM-3
13
VM-3
15
VM-3
14
VM-3
18
VM-3
18
VM-3
23
VM-3
23
VM-3
5
VM-2
12
VM-2
4
VM-2
2
VM-2
1
VM-2
6
VM-2
7
VM-2
9
VM-2
11
VM-2
4
VM-2
3
VM-2
19
VM-3
22
VM-3
22
VM-3
22
VM-3
16
VM-3
9
VM-2
COORDINATE SHEAR WALL
PENETRATION WITH
STRUCTURAL PLANS
01/11/23
23
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E-2
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E-5 E-4
E-4 E-5
TRANSFORMER VAULT RISER DETAIL VIEW
1" = 6'
1
VM-1A
20' MIN
3' MIN3' MIN
SLOPE SLOPE
VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 1 - CEILING &
TRANSFORMER
VAULT DETAIL
VM-1A
PROFESSIONAL
APPROVAL
LEGEND
EXTENT OF VAPOR BARRIER
OUTDOOR OR OPEN-AIR SPACE
4" DIA METAL VERTICAL RISER - FLOOR PENETRATION LOCATION
4" DIA METAL PIPE - LOCATED IN CEILING
4" DIA METAL VERTICAL RISER - EXHAUST LOCATION
E-1
H&H NO. SLS-006
DEVELOPER:
STILES / CATALYST
201 E. LAS OLAS BOULEVARD
FORT LAUDERDALE, FLORIDA
/
1600 CAMDEN ROAD, SUITE 200
CHARLOTTE, NORTH CAROLINA
CA
M
D
E
N

E
X
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A
N
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E
16
0
0

C
A
M
D
E
N

R
O
A
D
CH
A
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L
O
T
T
E
,

N
O
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T
H

C
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L
I
N
A
BR
O
W
N
F
I
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L
D
S

P
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O
J
E
C
T

N
O
.

2
5
0
2
6
-
2
1
-
0
6
0
E-1
INSTALL 4" DIA METAL FLANGES
FOR POTENTIAL ELECTRIC FAN
INSTALLATION IN THE FUTURE INSTALL 4" DIA METAL FLANGES
FOR POTENTIAL ELECTRIC FAN
INSTALLATION IN THE FUTURE
DISCHARGE RISERS
20-FT ABOVE-GRADE; AND
10-FT FROM OPENINGS
INTAKES, AND PUBLIC ACCESSPARKING DECK
STAIR C
1
VM-1A
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-2, VM-3, AND VM-4.
2.ABOVE-SLAB 4" DIA METAL PIPES SHALL BE CONNECTED USING AIR-TIGHT
FITTINGS PER SPECIFICATION 4 ON SHEET VM-4.
3.EXHAUST LOCATIONS MUST BE:
3.1.20-FT ABOVE FINAL GRADE (E-4 AND E-5 ONLY)
3.2.10 FT FROM ANY OPERABLE OPENINGS OR PUBLIC ACCESS
3.3.10 FT FROM ANY AIR INTAKES
4.ELECTRICAL OUTLETS (120 VAC, MIN 15 AMP) MUST BE INSTALLED NEAR
EXHAUSTS FOR POTENTIAL FUTURE ELECTRIC FAN INSTALLATION.
24
VM-3
24
VM-3
REVISIONS
REV DATE DESCRIPTION
0 09/15/22 DEQ SUBMISSION
1 01/11/23 DEQ REV 1 SUBMISSION
DATE: 01-11-23
01/11/23
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AD AD
AD
ADAD
E-4E-5
E-1
E-2E-3
VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 2
VM-1B
PROFESSIONAL
APPROVAL
LEGEND
4" DIA METAL VERTICAL RISER - EXHAUST LOCATION
OUTDOOR OR OPEN-AIR SPACE
E-1
H&H NO. SLS-006
DEVELOPER:
STILES / CATALYST
201 E. LAS OLAS BOULEVARD
FORT LAUDERDALE, FLORIDA
/
1600 CAMDEN ROAD, SUITE 200
CHARLOTTE, NORTH CAROLINA
CA
M
D
E
N

E
X
C
H
A
N
G
E
16
0
0

C
A
M
D
E
N

R
O
A
D
CH
A
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T
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,

N
O
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T
H

C
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I
N
A
BR
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P
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C
T

N
O
.

2
5
0
2
6
-
2
1
-
0
6
0
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-2, VM-3, AND VM-4.
2.ABOVE-SLAB 4" DIA METAL PIPES SHALL BE CONNECTED USING AIR-TIGHT
FITTINGS PER SPECIFICATION 4 ON SHEET VM-4.
3.EXHAUST LOCATIONS MUST BE:
3.1.20-FT ABOVE FINAL GRADE (E-4 AND E-5 ONLY)
3.2.10 FT FROM ANY OPERABLE OPENINGS OR PUBLIC ACCESS
3.3.10 FT FROM ANY AIR INTAKES
4.ELECTRICAL OUTLETS (120 VAC, MIN 15 AMP) MUST BE INSTALLED NEAR
EXHAUSTS FOR POTENTIAL FUTURE ELECTRIC FAN INSTALLATION.
PARKING DECK
25
VM-3
OPEN-ENDED PIPE - SEE NOTE #3
REVISIONS
REV DATE DESCRIPTION
0 09/15/22 DEQ SUBMISSION
1 01/11/23 DEQ REV 1 SUBMISSION
DATE: 01-11-23
01/11/23
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3
VIMS VAPOR BARRIER AND BASE COURSE1
NTSVM-2
BASE COURSE - CLEAN # 57 STONE (WASHED
WITH NO FINES), MIN 4" THICK BENEATH VIMS
VAPOR BARRIER (SEE SPECIFICATION #2)
VAPOR BARRIER (SEE SPECIFICATION #2)CONCRETE FLOOR SLAB
SUB-BASE
SUB-BASE
SLOTTED COLLECTION PIPE2
NTSVM-2
PVC TERMINATION SCREEN
(SEE SPECIFICATION #3)
CONCRETE FLOOR SLAB VAPOR BARRIER
(SPECIFICATION #2)
3" SCH 40 THREADED FLUSH JOINT
SLOTTED PVC PIPE SET WITHIN MIN 4"
BASE COURSE (SEE SPECIFICATION #3)
VIMS PIPING THROUGH SLAB STEPS
NTS
4
VM-2
SUB-BASE
CONCRETE FLOOR SLAB
MINIMUM 1% SLOPE TOWARD
SLOTTED SECTIONS
BASE COURSE
SOLID TO SLOTTED 3" SCH 40
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT)
3" SCH 40 PVC
45-DEGREE ELBOW
VAPOR BARRIER SEALED TO
PIPE PER MANUFACTURER
INSTRUCTIONS
SOLID 3" SCH 40 PVCPIPE SLEEVE
(SEE SPECIFICATION #12)
WALL (VARIES)
VAPOR BARRIER
SLOPE
VIMS AT SLAB STEP
NTS
3
VM-2
SUB-BASE
BASE COURSE
VAPOR BARRIER
WALL (VARIES)
VAPOR BARRIER AT STAIR THICKENED SLAB5
NTS
STAIR STRINGER
SUBBASE
BASE COURSE
VM-2
CONCRETE FLOOR
SLAB
VAPOR BARRIER
SOLID TO SLOTTED 3" SCH 40
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT)
VAPOR BARRIER SEALED TO PIPE PER
MANUFACTURER INSTRUCTIONS
VIMS AT INTERIOR COLUMN
NTS
6
VM-2
SUB-BASE
CONCRETE FLOOR SLAB
BASE COURSE
VAPOR BARRIER
CONCRETE COLUMN
CONCRETE FOOTING
VAPOR BARRIER SEALED OUTSIDE
OF CONCRETE COLUMN PER
MANUFACTURER INSTRUCTIONS
SEE DETAIL 8/VM-2
VIMS AT EXTERIOR COLUMN
NTS
7
VM-2
SUB-BASE
CONCRETE
FLOOR SLAB
BASE COURSE
VAPOR BARRIER
CONCRETE COLUMN
TERMINATE VAPOR BARRIER
AT SOIL GRADE, WHERE
APPLICABLE
SEE DETAIL 8/VM-2
VAPOR BARRIER SEALED
TO CONCRETE ON EACH
SIDE OF COLUMN
VIMS AT COLUMNS - EXPANSION DETAIL
NTS
8
VM-2
CONCRETE COLUMN
CONCRETE FLOOR SLAB
VAPOR BARRIER SEALED TO CONCRETE
PER MANUFACTURERS INSTRUCTIONS
COLUMN EXPANSION FORM
(INSTALLED OVER VAPOR BARRIER)
VAPOR BARRIER
9
NTSVM-2
VIMS AT ELEVATOR PIT
CONTINUOUS VAPOR
BARRIER SEALED PER
MANUFACTURER
INSTRUCTIONS
SUMP PIT
SUB-BASE
BASE COURSE
VAPOR BARRIER
WATERPROOFING MEMBRANE
(IF PRESENT - REFER TO
ARCH. PLANS)
(SEE SPECIFICATION #13)
SEE DETAIL 10/VM-2
VAPOR BARRIER SEALED TO
OUTSIDE OF CONCRETE AND
WATERPROOFING MEMBRANE
(WHERE PRESENT) PER
MANUFACTURER INSTRUCTIONS
(SEE DETAIL 10/VM-2)
PILES (WHERE PRESENT)
SEAL VAPOR BARRIER TO PILE
IF PILES CONTACT BASE OF
ELEVATOR PIT
10
VM-2
SOIL SUB-BASE
VAPOR BARRIER
DRAINAGE MAT
(IF PRESENT)
CONCRETE
NTS
VIMS AT ELEVATOR PIT - WATERPROOFING DETAIL
WATERPROOFING MEMBRANE
(IF PRESENT - REFER TO ARCH. PLANS)
(SEE SPECIFICATION #13)
OPEN AIR SPACE
OCCUPIED SPACE
VIMS AT RETAINING WALL ADJACENT TO OCCUPIED SPACE
NTS
11
VM-2
SUB-BASE
BASE COURSE
VAPOR BARRIER
VAPOR BARRIER SEALED TO OUTSIDE OF
CONCRETE AND WATERPROOFING MEMBRANE
(WHERE PRESENT) PER MANUFACTURER
INSTRUCTIONS (SEE DETAIL 8/VM-2)
WATERPROOFING AND
INSULATION (IF PRESENT)
DRAIN
WALL (VARIES)
CONCRETE
FLOOR SLAB
OCCUPIED SPACE
OCCUPIED SPACE
VIMS AT STAIRWELL WITH PIPE CONNECTION
NTS
12
VM-2
SUB-BASE
BASE COURSE
VAPOR BARRIER
VAPOR BARRIER SEALED TO OUTSIDE OF
CONCRETE AND WATERPROOFING MEMBRANE
(WHERE PRESENT) PER MANUFACTURER
INSTRUCTIONS (SEE DETAIL 8/VM-2)
WATERPROOFING AND
INSULATION (IF PRESENT)
DRAIN
WALL (VARIES)
CONCRETE
FLOOR SLAB
SOLID TO SLOTTED 3" SCH 40 PVC
PIPE TRANSITION (SLIP COUPLING
OR THREADED JOINT)
3" SCH 40 PVC
90-DEGREE ELBOW
VAPOR BARRIER SEALED TO
PIPE PER MANUFACTURER
INSTRUCTIONS
3" SCH 40 PVC
45-DEGREE ELBOW
PIPE SLEEVE (IF NECESSARY)
SLOPE
VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
CROSS-SECTION
DETAILS
VM-2
PROFESSIONAL
APPROVAL
H&H NO. SLS-006
DEVELOPER:
STILES / CATALYST
201 E. LAS OLAS BOULEVARD
FORT LAUDERDALE, FLORIDA
/
1600 CAMDEN ROAD, SUITE 200
CHARLOTTE, NORTH CAROLINA
CA
M
D
E
N

E
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16
0
0

C
A
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A
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E
,

N
O
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T
H

C
A
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L
I
N
A
BR
O
W
N
F
I
E
L
D
S

P
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E
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T

N
O
.

2
5
0
2
6
-
2
1
-
0
6
0
REVISIONS
REV DATE DESCRIPTION
0 09/15/22 DEQ SUBMISSION
1 01/11/23 DEQ REV 1 SUBMISSION
DATE: 01-11-23
01/11/23
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VIMS AT VERTICAL RISERS WITH 90 DEGREE ELBOW
NTS
13
VM-3
BASE COURSE
SUB-BASE
SLOTTED 3" SCH 40 PVC
VAPOR BARRIER SEALED TO PIPE
PER MANUFACTURER
INSTRUCTIONS
VAPOR BARRIER
4" DIA METAL RISER DUCT PIPE
(SEE SPECIFICATION #4, #5 & #6)
WALL OR COLUMN (VARIES)
4" SCH 40 PVC
90-DEGREE ELBOW4" TO 3" SCH 40
PVC REDUCER
AIR-TIGHT 4" DIA PVC TO METAL
TRANSITION COUPLING
SUPPORT PIPE PER NC CODE
SLOPE
INTERIOR SPACE
OPEN AIR SPACE
VIMS AT RETAINING WALL ADJACENT TO OPEN AIR SPACE
NTS
17
VM-3
SUB-BASE
CONCRETE
FLOOR SLAB
BASE COURSE
VAPOR BARRIER
WATERPROOFING AND
INSULATION (IF PRESENT)
DRAIN
WALL (VARIES)
4" SCH 40 PVC 90-DEGREE ELBOW
AIR-TIGHT 4" DIA PVC TO METAL
TRANSITION COUPLING
WALL (VARIES)
BASE COURSE
SUB-BASE
EXTERIOR VENEER WALL
VAPOR BARRIER AT SLAB EDGE WITH EXTERIOR VENEER WALL15
NTSVM-3
FINAL GRADE (VARIES)
TERMINATE VAPOR
BARRIER AT SOIL GRADE,
WHERE APPLICABLE
SOLID GROUT CAVITY
BELOW GRADE
OPEN-AIR
EXTERIOR
4" TO 3" SCH 40 PVC REDUCER
VAPOR BARRIER SEALED TO PIPE
PER MANUFACTURER INSTRUCTIONS
SOLID TO SLOTTED 3" SCH 40 PVC PIPE TRANSITION
(SLIP COUPLING OR THREADED JOINT)
VAPOR BARRIER
SLOPE
VIMS VERTICAL RISER AT INTERIOR COLUMN
NTS
14
VM-3
SUB-BASE
BASE COURSE
VAPOR BARRIER
CONCRETE COLUMN
SEE DETAIL 9/VM-2
VAPOR BARRIER SEALED TO
PIPE PER MANUFACTURER
INSTRUCTIONS
SLOTTED 3" SCH 40 PVC
4" SCH 40 PVC 90-DEGREE ELBOW
4" TO 3" SCH 40 PVC REDUCER
4" DIA METAL RISER DUCT PIPE
(SEE SPECIFICATIONS #4, #5 & #6)
STUD WALL (WHERE PRESENT)
AIR-TIGHT 4" DIA PVC TO METAL
TRANSITION COUPLING
SLOPE
VAPOR BARRIER SEALED OUTSIDE
OF CONCRETE COLUMN PER
MANUFACTURER INSTRUCTIONS
INTERIOR SPACE
OPEN AIR SPACE
VIMS AT RETAINING WALL ADJACENT TO OPEN AIR SPACE
NTS
16
VM-3
SUB-BASE
BASE COURSE
VAPOR BARRIER
WATERPROOFING AND
INSULATION
DRAIN
WALL (VARIES)
SOLID TO SLOTTED 3" SCH 40 PVC PIPE
TRANSITION (SLIP COUPLING OR
THREADED JOINT)
VAPOR BARRIER SEALED TO PIPE
PER MANUFACTURER INSTRUCTIONS
4" SCH 40 PVC
90-DEGREE ELBOW
4" TO 3" SCH 40 PVC REDUCER
4" DIA METAL RISER DUCT PIPE
(SEE SPECIFICATION #4, #5 & #6)
AIR-TIGHT 4" DIA PVC TO METAL
TRANSITION COUPLING
SUPPORT PIPE
PER NC CODE
SLOPE
WALL (VARIES)
BASE COURSE
SUB-BASE
EXTERIOR VENEER WALL
VAPOR BARRIER AT SLAB EDGE WITH EXTERIOR VENEER WALL18
NTSVM-3
VAPOR BARRIER
FINAL GRADE (VARIES)
TERMINATE VAPOR
BARRIER AT SOIL GRADE,
WHERE APPLICABLE
SOLID GROUT CAVITY
BELOW GRADE
OPEN-AIR
EXTERIOR ENCLOSED
INTERIOR
VIMS AT UTILITY BANK21
NTSVM-3
INSTALL VAPOR BARRIER AS
CLOSELY AS POSSIBLE TO EACH
PENETRATION PRIOR TO
APPLICATION OF SEALANT
SEALANT SET AROUND UTILITY BANKS
WITHIN DAM (e.g. RAVEN POUR 'N
SEAL OR MASTIC WITH 2" MIN
OVERLAP WITH VAPOR BARRIER (SEE
SPECIFICATION #10)
SUB-BASE
BASE COURSE
VAPOR BARRIER CONCRETE SLAB
VIMS RISER WITH UPPER LEVEL OFF-SET (WHERE APPLICABLE)
NTS
TO EXHAUST
(SEE DETAILS 22 & 23/VM-5A)
MIN 1% (1/8" PER 1') SLOPE
TOWARD EXTRACTION POINT
CEILING TRUSSES
FLOOR
PIPE SUPPORTS PER NC
BUILDING CODE
SOLID 4" DIA METAL
RISER. LENGTH VARIES
4" DIA METAL
90-DEGREE ELBOW4" DIA METAL
90-DEGREE ELBOW
24
VM-3
CEILING
SLOPE
FINISHED FLOOR SLAB
2" SCH 40 PVC SET WITHIN GRAVEL LAYER
2" DRAIN EXPANSION TEST PLUG
VIMS MONITORING POINT - TYPICAL DETAIL VIEW
NTS
22
VM-3
VAPOR BARRIER PENETRATION SEALED TO
PIPE PER MANUFACTURER INSTRUCTIONS
2" SCH 40 PVC 90 DEGREE ELBOW
FLOOR CLEANOUT, ADJUSTABLE, 4" DIA ZURN
INDUSTRIES MODEL #CO2450-PV4 (OR ENGINEER
APPROVED EQUIVALENT) FLUSH WITH FINISHED FLOOR
BASE COURSE
4" x 2" FLUSH REDUCER
BUSHING
OPEN-ENDED PIPE OR PVC
TERMINATION SCREEN
(SEE SPECIFICATION #7)
23
NTS
2" SCH 40 PVC 90 DEGREE ELBOW
BASE COURSE
TEMPORARY MONITORING POINT
2" SOLID SCH 40 PVC
TEST PLUG (2" PIPE SIZE)
SET PIPE FLUSH WITH SLAB OR
EXTENDED MORE THAN 6" ABOVE
SLAB. SEE SPECIFICATION #7.
VM-3
OPEN-ENDED PIPE OR PVC
TERMINATION SCREEN
SUPPORT PIPE AS
NECESSARY
VAPOR BARRIER PENETRATION
SEALED TO PIPE PER
MANUFACTURER INSTRUCTIONS
VIMS AT PERIMETER TURNED-DOWN SLAB
NTS
20
VM-3
VAPOR BARRIER
GRAVEL BETWEEN OPEN-AIR SPACE
AND OCCUPIED SPACE SHALL BE
DISCONTINUOUS
(SEE SPECIFICATION #9)
NON-LOAD BEARING
WALL (IF PRESENT)
OPEN-AIR
SPACE
ENCLOSED
INTERIOR SPACE
EXTEND TURNED DOWN
SLAB MINIMUM 2" BELOW
STONE LAYERS.SOIL SUB-BASE
REFER TO STRUCTURAL PLANS FOR FINAL
LAYOUT AND TURNED DOWN DIMENSIONS
EXTEND VAPOR BARRIER ON
OUTSIDE OF TURNED DOWN SLAB,
WHERE POSSIBLE
MOISTURE BARRIER, IF
WARRANTED, BY OTHERS
VIMS TURBINE VENTILATOR & EXHAUST25
NTS
TURBINE VENTILATOR FAN
(EMPIRE MODEL TV04SS OR ENGINEER
APPROVED EQUIVALENT)
RISER DUCT PIPE THROUGH ROOF
FLASHING
VM-3
4" HEAVY DUTY NO HUB
COUPLING
ELECTRICAL JUNCTION BOX FOR
POTENTIAL FUTURE VACUUM FAN
(REFER TO SPECIFICATION #5)
ROOFTOP
VIMS AT SLAB STEP EXTENT
NTS
19
VM-3
BASE COURSE
VAPOR BARRIER
WALL (VARIES)
INTERIOR SPACE
OPEN AIR SPACE
TERMINATE VAPOR BARRIER PAST
CONCRETE JOINT OF ADJACENT SLAB
VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
CROSS-SECTION
DETAILS
VM-3
PROFESSIONAL
APPROVAL
H&H NO. SLS-006
DEVELOPER:
STILES / CATALYST
201 E. LAS OLAS BOULEVARD
FORT LAUDERDALE, FLORIDA
/
1600 CAMDEN ROAD, SUITE 200
CHARLOTTE, NORTH CAROLINA
CA
M
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N

E
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E
16
0
0

C
A
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CH
A
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O
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T
E
,

N
O
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T
H

C
A
R
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L
I
N
A
BR
O
W
N
F
I
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L
D
S

P
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J
E
C
T

N
O
.

2
5
0
2
6
-
2
1
-
0
6
0
REVISIONS
REV DATE DESCRIPTION
0 09/15/22 DEQ SUBMISSION
1 01/11/23 DEQ REV 1 SUBMISSION
DATE: 01-11-23
01/11/23
S:\
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VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
SPECIFICATIONS
VM-4
PROFESSIONAL
APPROVAL
H&H NO. SLS-006
DEVELOPER:
STILES / CATALYST
201 E. LAS OLAS BOULEVARD
FORT LAUDERDALE, FLORIDA
/
1600 CAMDEN ROAD, SUITE 200
CHARLOTTE, NORTH CAROLINA
CA
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VAPOR INTRUSION MITIGATION SYSTEM (VIMS) SPECIFICATIONS
1.THIS VAPOR MITIGATION PLAN IS INTENDED TO BE USED FOR DIRECTION OF VIMS COMPONENT
INSTALLATION ONLY AND IS NOT INTENDED TO GUIDE CONSTRUCTION OF BUILDING STRUCTURAL
COMPONENTS. CONSTRUCTION CONTRACTOR SHALL VERIFY CONSISTENCY OF VIMS DETAILS WITH
APPLICABLE STRUCTURAL, ARCHITECTURAL, MECHANICAL, & PLUMBING PLANS AND RESOLVE ANY
INCONSISTENCIES PRIOR TO VIMS INSTALLATION. OBTAINING COUNTY OR LOCAL JURISDICTIONAL
BUILDING PERMITS, RELATED TO THE VIMS, SHALL BE THE RESPONSIBILITY OF THE GENERAL
CONTRACTOR (GC).
2.VIMS VAPOR BARRIER (LINER) SHALL BE VAPORBLOCK PLUS 20 (VBP20) 20-MIL VAPOR LINER
MANUFACTURED BY RAVEN INDUSTRIES (RAVEN). AS AN ALTERNATIVE, DRAGO WRAP 20-MIL VAPOR
INTRUSION BARRIER MANUFACTURED BY STEGO INDUSTRIES, LLC (STEGO) CAN BE USED, PENDING
APPROVAL BY THE ENGINEER. IF DESIRED BY THE ARCHITECT (OR BUILDING DESIGN TEAM), THE EPRO
E.PROFORMANCE OR E.PROTECT+ PRODUCTS MAY BE USED AS AN ALTERNATIVE. AS A WATERPROOFING
MEMBRANE AND VAPOR BARRIER WHILE THESE PRODUCTS ARE ACCEPTABLE AS VAPOR BARRIERS FOR
VIMS PURPOSES, IF USED, COORDINATION WITH THE ARCHITECT IS REQUIRED TO VERIFY THE EPRO
E.PROFORMANCE OR E.PROTECT+ PRODUCTS ARE SUITABLE FOR THE WATERPROOFING DESIGN.
THE VAPOR LINER SHALL BE INSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER INSTALLATION
INSTRUCTIONS TO CREATE A CONTINUOUS LINER BELOW MITIGATED AREAS, ALONG RETAINING WALLS,
AND AT SLAB-ON-GRADE STEPS WITHIN THE EXTENT OF VAPOR LINER BOUNDARY. A MINIMUM 4-INCH
THICK BASE COURSE CONSISTING OF CLEAN #57 STONE (WASHED WITH NO FINES) SHALL BE INSTALLED
BENEATH THE VIMS VAPOR LINER. A SIMILAR HIGH PERMEABILITY STONE MAY BE USED, PENDING
APPROVAL BY THE DESIGN ENGINEER AND STRUCTURAL OR GEOTECHNICAL ENGINEER.
2.1.THE VAPOR BARRIER SHALL BE PROPERLY SEALED IN ACCORDANCE WITH THE MANUFACTURER
INSTALLATION INSTRUCTIONS AS SPECIFIED IN THESE DRAWINGS AT FOOTERS, SLAB STEPS,
RETAINING WALLS, PENETRATIONS (SUCH AS PIPE PENETRATIONS), OR OTHER BUILDING
COMPONENTS WITHIN THE VIMS EXTENTS.
2.2.VAPOR BARRIER SHALL BE INSTALLED UNDER SLABS, ON WALLS, AND ALONG OTHER STRUCTURAL
COMPONENTS WHICH COME IN CONTACT WITH BOTH AN OCCUPIABLE ENCLOSED SPACE AND
SOIL. NOT ALL AREAS FOR THE VAPOR BARRIER MAY BE DEPICTED ON THE DRAWINGS. THE
GENERAL CONTRACTOR SHALL VERIFY ALL REQUIRED LOCATIONS FOR VAPOR BARRIER ALONG
VERTICAL WALLS PRIOR TO CONSTRUCTION AND BACKFILLING ACTIVITIES.
2.3.ALL CONCRETE BOX-OUTS, INCLUDING BUT NOT LIMITED TO SHOWER/BATH TUB DRAINS, SHALL
HAVE A CONTINUOUS VAPOR BARRIER INSTALLED BELOW.
2.4.VAPOR BARRIER SHALL EXTEND ALONG FOOTING EXTERIOR, IF POSSIBLE, AT LOCATIONS WHERE
EXTERIOR GRADE IS HIGHER THAN INTERIOR GRADE.
2.5.IN AREAS WITH EXPANSION BOARDS (E.G. ALONG COLUMNS), THE VAPOR BARRIER MUST BE
SEALED DIRECTLY TO THE CONCRETE WITH THE EXPANSION BOARD INSTALLED OVER THE VAPOR
BARRIER.
3.SUB-SLAB SLOTTED VAPOR COLLECTION PIPE SHALL BE SOCKET-WELD 3" SCH 40 PVC PIPE WITH 0.020"
TO 0.060" SLOT WIDTH AND 1/8" SLOT SPACING. AN ALTERNATE SLOT PATTERN, OR SCH 40 PVC
PERFORATED PIPE WITH 5/8" OR SMALLER DIAMETER PERFORATIONS, MAY BE USED PENDING
APPROVAL BY THE DESIGN ENGINEER.
3.1.SLOTTED COLLECTION PIPING SHALL BE SET WITHIN THE MINIMUM 4” BASE COURSE LAYER, WITH
APPROXIMATELY 1” OF BASE COURSE MATERIAL BELOW THE PIPING.
3.2.A PVC TERMINATION SCREEN (WALRICH CORPORATION #2202052, OR SIMILAR) SHOULD BE
INSTALLED ON THE END OF PIPE.
4.4" METAL (e.g. CAST-IRON, ALUMINUM, GALVANIZED) RISER DUCT PIPING SHALL BE INSTALLED TO
CONNECT EACH SLAB PENETRATION LOCATION TO A ROOFTOP EXHAUST DISCHARGE POINT (SEE
SPECIFICATION #5). ABOVE-SLAB RISER DUCT PIPE THAT RUNS BETWEEN THE SLAB PENETRATION AND
THE ROOFTOP EXHAUST DISCHARGE SHALL BE INSTALLED PER APPLICABLE BUILDING CODE AND AS
SPECIFIED IN THE CONSTRUCTION DOCUMENTS AND DRAWINGS.
4.1.VERTICAL RISER PIPING SHALL BE AIRTIGHT WITH AIRTIGHT FITTINGS FOR USE IN DRAIN, WASTE,
VENT (DWV) APPLICATIONS.
4.2.VERTICAL RISER PIPING MUST BE INSTALLED PER 2018 NORTH CAROLINA STATE PLUMBING CODE.
4.3.VIMS BELOW AND ABOVE GRADE SOLID PIPING SHALL NOT BE TRAPPED AND SHALL BE SLOPED A
MINIMUM OF 1/8 UNIT VERTICAL BY 12 UNITS HORIZONTAL (1% SLOPE) TO GRAVITY DRAIN.
BENDS, TURNS, AND ELBOWS IN VERTICAL RISER PIPES SHALL BE MINIMIZED FROM THE SLAB TO
THE ROOFTOP.
5.THE RISER DUCT PIPING SHALL EXTEND IN A VERTICAL ORIENTATION AT THE FIRST FLOOR RETAIL TRASH
ROOF, AND THE TRANSFORMER VAULT WALL. THE RISER SHALL TERMINATE A MINIMUM OF 2 FT ABOVE
THE RETAIL TRASH ROOF LINE. EMPIRE MODEL TV04SS VENTILATOR (OR ALTERNATE APPROVED BY
DESIGN ENGINEER) SHALL BE INSTALLED ON THE EXHAUST DISCHARGE END OF RISER DUCT PIPES E-1,
E-2, AND E-3. RISER DUCT PIPES E-4 AND E-5 SHALL CONSIST OF AN OPEN-ENDED 4" DIA METAL PIPE.
THE RISER DUCT PIPE AND THE VENTILATOR SHALL BE SECURED TO THE METAL RISER IN A VERTICAL
ORIENTATION.
5.1.EXHAUST DISCHARGE LOCATIONS SHALL BE A MINIMUM OF 10 FT FROM ANY OPERABLE OPENING
OR AIR INTAKE INTO THE BUILDING. NOTE THAT DISCHARGE LOCATIONS DEPICTED IN THE VAPOR
MITIGATION PLAN MAY BE REPOSITIONED AS LONG AS THE NEW POSITION MEETS THE
REQUIREMENTS PRESENTED ABOVE, PENDING ENGINEER APPROVAL.
5.2.AN ELECTRICAL JUNCTION BOX (120VAC, MIN 15 AMP REQUIRED) FOR OUTDOOR USE SHALL BE
INSTALLED NEAR THE PIPE DISCHARGE LOCATION ON THE ROOFTOP FOR POTENTIAL FUTURE
CONVERSION TO ELECTRIC FANS, IF REQUIRED. ALL WIRING AND ELECTRICAL SHALL BE INSTALLED
PER APPLICABLE BUILDING AND ELECTRICAL CODES.
6.ABOVE-SLAB ACCESSIBLE RISER DUCT PIPING SHALL BE PERMANENTLY IDENTIFIED BY MEANS OF A TAG
OR STENCIL AT A MINIMUM OF ONCE EVERY 10-LINEAR FT WITH "VAPOR MITIGATION: CONTACT
MAINTENANCE". LABELS SHALL ALSO BE FIXED NEAR THE VENTILATORS IN AN ACCESSIBLE LOCATION AT
THE ROOF DISCHARGE.
7.MONITORING POINTS SHALL CONSIST OF 2-INCH DIAMETER SCH 40 PVC PIPE WITH A 90-DEGREE ELBOW
TO FORM AN “L” SHAPE. A MINIMUM OF 6” SECTION OF PIPE AND MAXIMUM 6 FT SECTION OF PIPE, OR
OTHERWISE APPROVED BY THE DESIGN ENGINEER, SHALL BE SET WITHIN THE BASE COURSE LAYER WITH
AN OPEN ENDED PIPE OR PIPE PROTECTION SCREEN AT THE TERMINATION. THE PIPE TERMINATION
SHALL BE ENCASED WITHIN THE BASE COURSE LAYER.
7.1.THE HORIZONTAL PIPING SHALL BE SLOPED A MINIMUM OF 1/8 UNIT VERTICAL BY 12 UNITS
HORIZONTAL (1% SLOPE) TO GRAVITY DRAIN TOWARDS THE PIPE TERMINATION AND PREVENT
MOISTURE FROM COLLECTING AT THE 90-DEGREE ELBOW.
7.2.THE MONITORING POINT INTAKE SHALL BE PLACED A MINIMUM OF 5-FT FROM EXTERIOR WALLS
OR FOOTERS.
7.3.MONITORING POINTS LOCATED IN STAIRWELLS ARE INTENDED TO BE INSTALLED BELOW
STAIRWELL LANDINGS AND MAY BE RE-POSITIONED TO PROVIDE SUITABLE ACCESS TO THE POINT
PER APPROVAL OF THE DESIGN ENGINEER.
7.4.THE END OF THE PIPE SHALL CONTAIN AN OPEN PIPE, A PVC TERMINATION SCREEN, HAVE A
MINIMUM OF THREE 5
8" DIA HOLES DRILLED INTO A SOLID CAP, OR SHALL HAVE VENT SLOTS WITH
MINIMUM 1 SQUARE INCH OF OPEN AREA.
7.5.A 4-INCH DIAMETER ADJUSTABLE FLOOR CLEAN-OUT (ZURN INDUSTRIES MODEL #CO2450-PV4, OR
EQUIVALENT) SHALL BE INSTALLED AND SET FLUSH WITH THE FINISHED CONCRETE SURFACE.
8.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS SHALL USE "LOW OR NO VOC" PRODUCTS AND
MATERIALS, WHEN POSSIBLE, AND SHALL NOT USE PRODUCTS CONTAINING THE COMPOUNDS
TETRACHLOROETHENE (PCE) OR TRICHLOROETHENE (TCE). THE CONSTRUCTION CONTRACTOR AND
SUB-CONTRACTORS SHALL PROVIDE SAFETY DATA SHEETS (SDS) TO THE ENGINEER FOR THE PRODUCTS
AND MATERIALS USED FOR CONSTRUCTION OF THE VIMS.
9.IN INSTANCES WHERE A THICKENED FOOTING OR RETAINING WALL IS NOT SPECIFIED AT THE EXTENT OF
VAPOR LINER, A THICKENED SLAB OR FOOTER SHALL BE INSTALLED BY THE CONTRACTOR THAT INCLUDES
A SOIL SUBBASE TO CREATE A CUT-OFF FOOTER AT THE EXTENT OF VAPOR LINER. THE ADDITIONAL
THICKENED SLAB OR FOOTER SHALL NOT ALLOW FOR CONTINUOUS GRAVEL BETWEEN THE VIMS
EXTENTS AND EXTERIOR NON-MITIGATED AREAS.
10.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS SHALL AVOID THE USE OF TEMPORARY FORM
BOARDS THAT PENETRATE THE VAPOR LINER WHERE POSSIBLE. IF TEMPORARY FORM BOARDS ARE
USED, THE SIZE AND NUMBER OF PENETRATIONS THROUGH THE VAPOR LINER SHALL BE LIMITED AND
SMALL DIAMETER SOLID STAKES (I.E. METAL STAKES) SHALL BE USED. IN ALL CASES, AS FORM BOARDS
ARE REMOVED, THE CONTRACTOR OR SUB-CONTRACTORS SHALL RESEAL ALL PENETRATIONS IN
ACCORDANCE WITH VAPOR LINER MANUFACTURER INSTALLATION INSTRUCTIONS.
10.1.HOLLOW FORMS OR CONDUITS THAT CONNECT THE SUB-SLAB ANNULAR SPACE TO ENCLOSED
ABOVE SLAB SPACES SHALL NOT BE PERMITTED.
10.2.AREAS OF UTILITY BANKS (e.g. LOCATION OF THREE OR MORE ADJACENT UTILITIES THROUGH THE
SLAB) SHALL BE SEALED TO CREATE AN AIR-TIGHT BARRIER AROUND THE UTILITY CONDUITS USING
RAVEN POUR N'SEAL OR STEGO-INDUSTRIES MASTIC PRIOR TO THE SLAB POUR. OTHER SEALANT
METHODS IF USED SHALL BE APPROVED BY THE DESIGN ENGINEER PRIOR TO APPLICATION. SINGLE
UTILITY PENETRATIONS SHALL BE SEALED PER THE VAPOR BARRIER MANUFACTURER INSTALLATION
INSTRUCTIONS.
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 PER THE
APPROVED DESIGN. THE REQUIRED INSPECTION COMPONENTS INCLUDE: (1) INSPECTION OF SUB-SLAB
PIPING LAYOUT, (2) GRAVEL PLACEMENT, AND (3) MONITORING POINT PLACEMENT PRIOR TO
INSTALLING VAPOR BARRIER; (4) INSPECTION OF VAPOR BARRIER PRIOR TO POURING CONCRETE; (5)
INSPECTION OF ABOVE-GRADE PIPING LAYOUT; (6) INSPECTION OF VENTILATOR AND RISER DUCT PIPE
CONNECTIONS; AND (7) INSPECTION OF VAPOR BARRIER ALONG VERTICAL WALLS, ELEVATOR PITS, OR
OTHER APPLICABLE AREAS. 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 OR DESIGNEE PRIOR TO THE REQUIRED INSPECTION(S) WITH SUBSEQUENT
NOTIFICATION PROVIDED TO NCDEQ. THE CONTRACTORS SHALL NOT COVER COMPONENTS OF THE
VIMS WITHOUT INSPECTION AND ENGINEER'S, OR ENGINEER'S DESIGNEE, APPROVAL.
12.PIPE SLEEVES, IF USED, SHALL BE PROPERLY SEALED TO PREVENT A PREFERENTIAL AIR PATHWAY FROM
BELOW THE SLAB INTO THE BUILDING. REFER TO TO STRUCTURAL DRAWINGS FOR FOOTING DETAILS
ADDRESSING VIMS PIPING.
13.WATERPROOFING INCLUDING MEMBRANES AND DRAINAGE MATS SHALL BE INSTALLED IN ACCORDANCE
WITH THE ARCHITECTURAL AND STRUCTURAL PLANS. IF WATERPROOFING IS PRESENT, THE VAPOR
BARRIER SHALL BE INSTALLED BETWEEN WATERPROOFING AND ANY DRAINAGE FEATURES INCLUDING
DRAINAGE MATS. THE INSTALLER SHALL CONFIRM THAT THE WATERPROOFING PRODUCTS AND
SEALANTS USED DURING CONSTRUCTION ARE COMPATIBLE WITH THE SPECIFIED VAPOR BARRIER.
14.WHERE POUR-BACK AREAS ARE PRESENT, THE VIMS PIPING, VAPOR BARRIER, AND MONITORING POINTS
SHALL BE PROTECTED BY THE INSTALLATION CONTRACTOR AND SUB-CONTRACTORS THROUGHOUT THE
PROJECT.
14.1.PROTECTIVE MEASURES (E.G., FLAGGING, PROTECTIVE BOARDS, ETC.) SHALL BE USED AS NEEDED
TO PREVENT DAMAGE TO THESE COMPONENTS.
14.2.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.
14.3.SIGNAGE THAT INDICATES PRECAUTIONS SHOULD BE TAKEN WHILE WORKING IN THE AREAS WITH
EXPOSED BARRIERS WILL BE POSTED IN PROMINENT LOCATIONS IN THE AREAS OF TENANT SPACES.
14.4.ADDITIONAL VIMS INSPECTIONS OF THE POUR-BACK SPACES ARE REQUIRED DURING TENANT
UPFIT. THE UPFIT CONTRACTOR MUST CONTACT THE DESIGN ENGINEER, OR ENGINEER'S
DESIGNEE, TO PERFORM THE INSPECTIONS DESCRIBED IN SPECIFICATION 11 WITH SUBSEQUENT
NOTIFICATIONS TO DEQ.
REVISIONS
REV DATE DESCRIPTION
0 09/15/22 DEQ SUBMISSION
1 01/11/23 DEQ REV 1 SUBMISSION
DATE: 01-11-23
01/11/23

Attachment B
Vapor Intrusion Assessment Data Summary (Excerpts)
FIGURE 2
PREVIOUS SAMPLE LOCATIONS MAP
CLAWSON RADIATOR
1600 & 1614 CAMDEN DRIVE AND
109 & 115 WEST PARK AVENUE
CHARLOTTE, NORTH CAROLINA
ECS PROJECT NO. 49:13075-B
SOURCE:
MECKLENBURG COUNTY GIS WEBSITE
ACCESSED FEBRUARY 19, 2021
SCALE:
AS SHOWN
APPROXIMATE SITE BOUNDARY
LEGEND
APPROXIMATE GROUNDWATER BORING LOCATION
Former Clawson Radiator,
Former Screen Printing, and
Former Drycleaners (REC)
Former Filling
Station and Location
of Brownfield (REC)
Camden, Kingston,
and Park Solvents
SHWS (REC)
Camden, Kingston,
and Park Solvents
SHWS (REC)
Apparent Vent Pipe
GW-1
GW-2
GW-3
GW-4
GW-5
GW-6
GW-7
GW-8 GW-9
GW-10
PROPOSED APPROXIMATE GROUNDWATER BORING LOCATION (NO SAMPLE COLLECTED)
FIGURE 3
SAMPLE LOCATIONS MAP
CLAWSON RADIATOR
1600 & 1614 CAMDEN DRIVE AND
109 & 115 WEST PARK AVENUE
CHARLOTTE, NORTH CAROLINA
ECS PROJECT NO. 49:13075-B
SOURCE:
MECKLENBURG COUNTY GIS WEBSITE
ACCESSED FEBRUARY 19, 2021
SCALE:
AS SHOWN
APPROXIMATE SITE BOUNDARY
LEGEND
APPROXIMATE TEMPORARY MONITORING WELL LOCATION
PROPOSED SOIL BORING LOCATION APPROXIMATE EXTERIOR SOIL VAPOR
SAMPLE LOCATION
APPROXIMATE SUB-SLAB SOIL VAPOR
SAMPLE LOCATION
MW-1
MW-2
MW-3
SS-1
SS-2
SB-1
SB-2
SB-3
SB-4
SB-5
SB-6
SB-7
SB-8
SB-9SG-1
SG-2
SG-3
SG-4
SG-5
FIGURE 4
GROUNDWATER CONTOUR MAP
CLAWSON RADIATOR
1600 & 1614 CAMDEN DRIVE AND
109 & 115 WEST PARK AVENUE
CHARLOTTE, NORTH CAROLINA
ECS PROJECT NO. 49:13075-B
SOURCE:
MECKLENBURG COUNTY GIS WEBSITE
ACCESSED FEBRUARY 19, 2021
SCALE:
AS SHOWN
APPROXIMATE SITE BOUNDARY
LEGEND
APPROXIMATE TEMPORARY MONITORING WELL LOCATION
MW-1
(714.83)
MW-2
(718.21)
MW-3
(714.85)
718
717
716
715
APPROXIMATE GROUNDWATER CONTOUR APPROXIMATE GROUNDWATER FLOW DIRECTION
Table 1
Summary of Groundwater Samples Analytical Results
Cadmen Exchange
1600 and 1614 Camden Drive
Charlotte, Mecklenburg County, North Carolina
ECS Project No.: 49:13075-A
VOCs by EPA Method 8260 SVOCs by EPA
Method 8270
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NC2LGWQS 6,000 4,000 0.4 70 40 0.7 3.0 Various
Residential Groundwater VISL 4,500,000 450,000 2.2 1,400 1,600 12.0 1.0 Various
Non-Residential Groundwater VISL 19,000,000 4,000,000 400 5,900 40,000 48 4.4 Various
GW-2 04/12/21 28.2 19.9 <1.0 <1.0 2.2 J <1.0 <1.0 BRL
GW-6 04/12/21 13.5 J 10.5 1.7 0.90 J 1.1 J <1.0 <1.0 BRL
GW-7 04/12/21 <25.0 <1.0 <1.0 <1.0 <1.0 0.84 J 0.81 J BRL
GW-8 04/12/21 13.0 J 14.2 <1.0 <1.0 1.5 J <1.0 <1.0 BRL
Notes:
All results presented in micrograms per liter (µg/L)
Compounds not shown were not detected
VOCs = Volatile Organic Compounds
SVOCs = Semi-volatile Organic Compounds
NC2LGWQS = North Carolina 2L Groundwater Quality Standards (October 2020)
Residential Groundwater VISL = NCDEQ Residential Groundwater Vapor Instrusion Screening Level (Janaury 2021)
Non-Residential Groundwater VISL = NCDEQ Non-Residential Groundwater Vapor Instrusion Screening Level (Janaury 2021)
J = Estimated concentration detected between laboratory method reporting limit and detection limit
BDL = Below Detection Level
VALUE = concentration greater than the laboratory method reporting limit
VALUE = concentration greater than the NC2LGWQS
VALUE = concentration greater than the Non-Residential Groundwater VISL
Sample DateSample ID
TABLE 2SUMMARY OF EXTERIOR SOIL GAS SAMPLES ANALYTICAL RESULTS
Clawson Radiator1600 and 1614 Camden Drive
Charlotte, Mecklenburg County, North CarolinaBrownfields Project ID: 25026-21-060
ECS Project No.: 49:13075-B
Volatile Organic Compounds by EPA TO-15
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Residential VISL 22,000 12 3.1 35,000 4,900 4.1 630 42,000 700 25 NE 490 37 NE 2,800 4,900 1,400 360 3,400 21,000 2.8 21,000 700 280 35,000 14 NE 35,000 420 420 700 700
Non-Residential VISL 2,700,000 160 41 440,000 61,000 53 7,900 530,000 8,800 330 NE 6,100 490 NE 35,000 61,000 18,000 4,700 53,000 260,000 36 260,000 88,000 3,500 440,000 180 NE 440,000 5,300 5,300 8,800 8,800
SG-1 -30 -28 -5 12/22/21 210 2.7 <0.44 23 J 5.3 J 0.51 J 38 9.2 1.2 <0.92 21 6.5 0.87 1.1 7.7 14 J 15 J 4.0 <6.9 3.5 <1.0 50 <0.85 1.3 J 9.3 1.1 0.65 J <6.1 0.73 J 0.28 J 2.0 1.5
SG-2 -30 -28 -5 12/22/21 <1,400 26,000 <33 <1,800 <470 <73 <62 140,000 <74 <69 <1,100 <540 8,500 2,200 220,000 440,000 <1,500 <54 <520 <61 <79 <1,000 <64 <100 2,100 <81 <340 <460 3,900 2,500 10,000 620
SG-3 -30 -28 -5 12/22/21 <19 5.7 1.8 4.8 J <6.2 <0.98 <0.83 13 1.5 <0.92 13 J <7.2 1.8 0.53 J 22 28 J <20 <0.72 <6.9 <0.82 1.5 23 <0.85 0.76 J 6.0 <1.1 1.1 J 0.58 J 1.2 0.51 J 2.7 0.89
SG-DUP*-30 -28 -5 12/22/21 <19 4.3 1.9 J 3.4 J <6.2 <0.98 0.49 J 9.9 1.5 <0.92 13 J <7.2 1.3 0.39 J 15 14 J <20 <0.72 <6.9 <0.82 1.4 20 <0.85 0.62 J 5.2 <1.1 1.1 J <6.1 0.83 J 0.41 J 2.0 0.75 J
SG-4 -30 -28 -5 12/21/21 <19 1.1 <0.44 8.9 J 3.8 J <0.98 0.94 5.2 1.4 1.7 73 18 0.71 J 0.49 J 3.5 11 J 6.5 J <0.72 3.5 J <0.82 <1.0 <14 0.63 J <1.4 66 <1.1 1.1 J <6.1 1.6 0.45 J 2.0 0.83 JSG-5 -30 -28 -5 12/21/21 <1,400 160 <33 <1,800 <470 <73 <62 20,000 <74 <69 <1,100 <540 <65 <74 30,000 43,000 <1,500 <54 <520 <61 <79 <1,000 <64 <100 <57 <81 <340 <460 <74 <74 <130 <65
Notes:
Results presented in micrograms per cubic meter (µg/m3)
in Hg = inches of mercury
Residential VISL = NCDEQ-DWM Residential Exterior Vapor Instrusion Screening Level Level (A) (June 2021) at target risk 1.0E -06
Non-Residential VISL = NCDEQ-DWM Non-Residential Exterior Vapor Instrusion Screening Level Level (A) (June 2021) at target risk 1.0E -06
* = SG-DUP is a duplicate sample of the SG-3 record sample
J = Estimated concentration detected between laboratory method detection limit and reporting limit
NS = No Standard Established
VALUE = concentration greater than the laboratory method reporting limit
VALUE = concentration greater than the Non-Residential VISL
Sample ID
Laboratory
Vaccuum Reading
(in Hg)
Initial Sample
Vaccum Reading
(in Hg)
Final Sample
Vaccum Reading
(in Hg)
Sample Date
TABLE 3
SUMMARY OF SUB-SLAB SOIL GAS SAMPLES ANALYTICAL RESULTS
Clawson Radiator
1600 and 1614 Camden Drive
Charlotte, Mecklenburg County, North Carolina
Brownfields Project ID: 25026-21-060
ECS Project No.: 49:13075-B
Volatile Organic Compounds by EPA TO-15
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Residential VISL 220,000 12 35,000 16 4.1 630 700 NE 37 NE 2,800 1,400 280 35,000 NE 420 420 700 700
Non-Residential VISL 2,700,000 160 440,000 200 53 7,900 8,800 NE 490 NE 35,000 18,000 3,500 440,000 NE 5,300 5,300 8,800 8,800
SS-1 -30 -28 -5 12/21/21 29 0.56 J 3.3 J <1.3 0.41 J 0.54 J 4.9 80 0.66 J 0.39 J 0.66 J 8.5 J <1.4 19 25 1.9 0.39 J 2.5 1.0
SS-2 -30 -28 -5 12/21/21 32 0.17 J 2.3 J 0.50 J <0.98 <0.83 1.7 200 0.31 J <0.98 <0.82 8.0 J 0.62 J 1.1 1.3 J 1.3 0.28 J 1.4 J 0.59 J
DUP-1*-30 -28 -5 12/21/21 42 0.15 J 2.7 J 0.43 J <0.98 <0.83 2.0 210 0.35 J 0.33 J <0.82 8.8 J <1.4 1.2 1.3 J 1.4 0.29 J 1.5 J 0.69 J
Notes:
Results presented in micrograms per cubic meter (µg/m3)
in Hg = inches of mercury
Residential VISL = NCDEQ-DWM Residential Sub-Slab Vapor Instrusion Screening Level Level (A) (June 2021) at target risk 1.0E -06
Non-Residential VISL = NCDEQ-DWM Non-Residential Sub-Slab Vapor Instrusion Screening Level Level (A) (June 2021) at target risk 1.0E -06
* = DUP-1 is a duplicate sample of the SS-2 record sample
J = Estimated concentration detected between laboratory method detection limit and reporting limit
NS = No Standard Established
VALUE = concentration greater than the laboratory method reporting limit
VALUE = concentration greater than the Residential VISL
VALUE = concentration greater than the Non-Residential VISL
Sample ID
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Initial Sample
Vaccum
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(in Hg)
Final Sample
Vaccum
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Sample Date
Table 4Summary of Soil Samples Analytical ResultsClawson Radiator1600 and 1614 Camden DriveCharlotte, Mecklenburg County, North CarolinaBrownfields Project ID: 25026-21-060ECS Project No.: 49:13075-B
VOCs by EPA Method 8260
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Protection of Groundwater PSRG 25 0.01 17 4.5 13 2.3 NE 0.39 2.6 1.5 8.3 12 9.9Residential PSRG 12,000 1.2 5,500 780 6.1 410 NE 2.1 780 1,200 990 63 120Industrial/Commerical PSRG 140,000 5.4 40,000 12,000 27 2,100 NE 8.8 5,100 7,300 9,700 370 530SB-1 12/20/21 0 - 5 0.054 J <0.0071 <0.14 <0.0071 0.015 <0.0071 <0.0071 <0.0071 <0.0071 <0.0071 0.0075 <0.0071 <0.014
SB-2 12/20/21 0 - 5 0.062 J 0.0067 J <0.15 0.017 0.23 0.016 0.013 0.019 <0.0076 <0.0076 0.0097 0.0038 J <0.015
SB-3 12/20/21 0 - 5 <0.16 <0.0079 <0.16 <0.0079 0.034 <0.0079 <0.0079 0.016 <0.0079 <0.0079 0.011 0.0063 J 0.025
SB-4 12/20/21 0 - 5 0.23 J 0.082 0.068 J <0.013 11.9 0.74 1.1 4.7 <0.013 0.73 0.29 0.60 0.59
SB-5 12/21/21 5 - 10 <0.15 <0.0076 <0.15 <0.0076 <0.0076 <0.0076 <0.0076 0.014 <0.0076 <0.0076 0.0099 0.0054 J 0.0068 J
SB-6 12/21/21 5 - 10 <0.14 <0.0072 <0.14 <0.0072 <0.0072 <0.0072 <0.0072 0.0073 <0.0072 <0.0072 0.0060 J <0.0072 <0.014
SB-7 12/21/21 8 - 10 <0.14 <0.0070 <0.14 <0.0070 <0.0070 <0.0070 <0.0070 <0.0070 <0.0070 <0.0070 <0.0070 <0.0070 <0.014
DUP-1*12/21/21 8 - 10 <0.16 <0.0079 <0.16 <0.0079 <0.0079 <0.0079 <0.0079 <0.0079 <0.0079 <0.0079 <0.0079 <0.0079 <0.016SB-8 12/21/21 5 - 10 <0.63 7.9 <0.63 <0.031 11.9 5.6 4.4 6.9 7.7 <0.031 <0.031 26.8 13.9
SB-9 12/21/21 5 - 10 <0.12 <0.0060 <0.12 <0.0060 <0.0060 <0.0060 <0.0060 <0.0060 <0.0060 <0.0060 <0.0060 <0.0060 <0.012
SVOCs by EPA Method 8270
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Protection of Groundwater PSRG 0.35 0.12 1.2 NE 12 36 670 3.9 0.11 0.39 0.39 NE 440Residential PSRG 1.1 0.11 1.1 NE 11 110 480 1.1 18 48 2.1 NE 360Industrial/Commerical PSRG 21 2.1 21 NE 210 2,100 6,000 21 73 600 8.8 NE 4,500SB-1 12/20/21 0 - 5 <3.9 <3.9 <3.9 <3.9 <3.9 <3.9 <3.9 <3.9 <3.9 <3.9 <3.9 <3.9 <3.9
SB-2 12/20/21 0 - 5 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40
SB-3 12/20/21 0 - 5 <4.6 <4.6 <4.6 <4.6 <4.6 <4.6 <4.6 <4.6 <4.6 <4.6 <4.6 <4.6 <4.6
SB-4 12/20/21 0 - 5 1.4 J <4.0 1.5 J <4.0 <4.0 1.5 J 2.7 J <4.0 <4.0 <4.0 <4.0 <4.0 2.9 J
SB-5 12/21/21 5 - 10 0.53 0.49 0.67 0.32 J 0.26 J 0.53 0.84 0.29 J <0.44 <0.44 <0.44 0.28 J 0.90
SB-6 12/21/21 5 - 10 <2.1 <2.1 <2.1 <2.1 <2.1 <2.1 0.86 J <2.1 <2.1 <2.1 <2.1 <2.1 <2.1
SB-7 12/21/21 8 - 10 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40DUP-1*12/21/21 8 - 10 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40SB-8 12/21/21 5 - 10 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 1.3 2.5 2.8 <0.40 <0.40
SB-9 12/21/21 5 - 10 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40
Total Metals By EPA Methods 6010/7471/7199
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Protection of Groundwater PSRG 5.8 580 3 ---360,000 3.8 270 1 2.1 3.4Residential PSRG 0.68 3,100 14 ---23,000 0.31 400 4.7 78 78
Industrial/Commerical PSRG 3.0 47,000 200 ---350,000 6.5 800 70 1,200 1,200
SB-1 12/20/21 0 - 5 <3.5 40.2 <1.2 23 22.05 0.95 J 19.2 0.18 J <4.6 <1.2
SB-2 12/20/21 0 - 5 <3.4 92.3 <1.1 12.7 12.7 <1.3 104 0.27 J <4.5 <1.1
SB-3 12/20/21 0 - 5 <3.8 45.0 <1.3 25.4 25.4 <1.3 21.4 0.13 J <5.1 <1.3
SB-4 12/20/21 0 - 5 13.9 317 5.8 72.2 72.2 <1.2 768 0.087 J <22.5 <1.1
SB-5 12/21/21 5 - 10 <3.7 45.9 <1.2 29.0 28.51 0.49 J 5.7 0.019 J <5.0 <1.2SB-6 12/21/21 5 - 10 <3.5 50.4 <1.2 40.2 39.64 0.56 J 12.7 0.036 J <4.7 <1.2SB-7 12/21/21 8 - 10 <3.6 154 <1.2 16.2 15.53 0.67 J 8.5 0.013 J <4.7 <1.2
DUP-1*12/21/21 8 - 10 <3.6 154 <1.2 15.0 14.59 0.41 10.5 0.016 J <4.7 <1.2
SB-8 12/21/21 5 - 10 <3.5 233 <1.2 155 154.1 0.93 J 12.4 <0.26 <4.7 <1.2
SB-9 12/21/21 5 - 10 <3.3 417 <1.1 109 105.5 3.5 11.1 <0.30 13.4 2.9
Notes:
All results presented in milligrams per kilogram (mg/kg)
Compounds not shown were not detected
VOCs = Volatile Organic Compounds
SVOCs = Semi-volatile Organic Compounds
PSRG = NCDEQ Preliminary Soil Remediation Goals
* = DUP-1 is a duplicate sample of SB-7 sample
J = Estimated concentration detected between laboratory method reporting limit and detection limit
VALUE = concentration greater than the laboratory method reporting limit
VALUE = concentration greater than the Protection of Groundwater PSRG
VALUE = concentration greater than the Residential PSRG
VALUE = concentration greater than the Industial/Commercial PSRG
Sample ID Sample Date Sample Depth(x to y ft bgs)
Sample ID Sample Date Sample Depth(x to y ft bgs)
Sample ID Sample Date Sample Depth
(x to y ft bgs)
Table 5
Summary of Groundwater Samples Analytical Results
Clawson Radiator
1600 and 1614 Camden Drive
Charlotte, Mecklenburg County, North Carolina
Brownfields Project ID: 25026-21-060
ECS Project No.: 49:13075-B
VOCs by EPA Method 8260 SVOCs by EPA Method 8270
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NC2LGWQS 1 0.4 350 70 6 600 6 30
Residential Groundwater VISL 1.6 2.2 39 1,400 4.6 3,800 4.6 NV
Non-Residential Groundwater VISL 6.9 400 160 5,900 20 16,000 20 NV
MW-1 12/22/21 <1.0 1.8 1.0 1.8 <1.0 <1.0 <8.3 <8.3
MW-2 12/22/21 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <8.7 <8.7
MW-3 12/22/21 594 <5.0 <5.0 2.8 J 5.6 3.7 J 4.2 J 1.9 J
DUP-1*12/22/21 669 <5.0 <5.0 2.9 J 6.6 4.3 J 4.7 J 1.7 J
Total RCRA Metals by EPA Method 6010/7470/7199 Dissolved RCRA Metals by EPA Method 6010/7470/7199
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NC2LGWQS 10 700 2 10 15 1 20 20 10 700 2 10 15 1 20 20
Residential Groundwater VISL NV NV NV NV NV 0.18 NV NE NV NV NV NV NV 0.18 NV NE
Non-Residential Groundwater VISL NV NV NV NV NV 0.75 NV NV NV NV NV NV NV 0.75 NV NV
MW-1 12/22/21 <30.0 92.8 <10.0 4.0 J <20.0 0.20 J <40.0 <10.0 <30.0 76.6 <10.0 <10.0 <20.0 <0.20 <40.0 <10.0
MW-2 12/22/21 <30.0 110 <10.0 <10.0 <20.0 0.15 J <40.0 <10.0 <30.0 100 <10.0 <10.0 <20.0 <0.20 <40.0 <10.0
MW-3 12/22/21 <30.0 185 <10.0 <10.0 <20.0 <0.20 <40.0 <10.0 <30.0 152 <10.0 <10.0 <20.0 <0.20 <40.0 <10.0
DUP-1*12/22/21 <30.0 185 <10.0 <10.0 <20.0 <0.20 <40.0 <10.0 <30.0 161 <10.0 <10.0 <20.0 <0.20 <40.0 <10.0
Notes:
All results presented in micrograms per liter (mg/L)
Compounds not shown were not detected
VOCs = Volatile Organic Compounds
SVOCs = Semi-volatile Organic Compounds
NC2LGWQS = North Carolina 2L Groundwater Quality Standards (October 2020)
Residential Groundwater VISL = NCDEQ Residential Groundwater Vapor Instrusion Screening Level (Janaury 2021)
Non-Residential Groundwater VISL = NCDEQ Non-Residential Groundwater Vapor Instrusion Screening Level (Janaury 2021)
* = DUP-1 is a duplicate sample of the MW-3 sample
J = Estimated concentration detected between laboratory method reporting limit and detection limit
NE = Not established
NV = Not volatile
VALUE = concentration greater than the laboratory method reporting limit
VALUE = concentration greater than the NC2LGWQS
VALUE = concentration greater than the Residential Groundwater VISL
VALUE = concentration greater than the Non-Residential Groundwater VISL
Sample DateSample ID
Sample ID Sample Date
Risk for Individual Pathways Output Form 1A
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID: Clawson Radiator
Exposure Unit ID: MW-3
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air 3.8E-04 4.3E+00 YES
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Groundwater to Indoor Air 8.6E-05 1.0E+00 YES
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not calculated
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID: Clawson Radiator
Exposure Unit ID: SG-1
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 4.6E-07 4.1E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 3.3E-08 3.2E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not calculated
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID: Clawson Radiator
Exposure Unit ID: SG-2
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 2.4E-03 6.6E+01 YES
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.8E-04 5.2E+00 YES
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not calculated
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID: Clawson Radiator
Exposure Unit ID: SG-3
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.6E-06 5.2E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.3E-07 4.1E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not calculated
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID: Clawson Radiator
Exposure Unit ID: SG-4
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.8E-07 2.6E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.4E-08 2.0E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not calculated
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: June 2021
Basis: May 2021 EPA RSL Table
Site ID: Clawson Radiator
Exposure Unit ID: SG-5
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water*NC NC NC
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.3E-05 4.2E+00 YES
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.0E-06 3.3E-01 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not calculated
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
North Carolina DEQ Risk Calculator

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
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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
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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
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Attachment C-3

Big Foot Slotted PVC Pipe Product Specification Sheet
Attachment C-4
Zurn Industries Floor Clean-out Product Specification Sheet
Application
• Easy access to walls and ceilings
• Economical and attractive
Product Features
• High impact styrene plastic with U.V. stabilizers
• Hinged with a removable feature
PA-3000 Access Door Specifications:
Door / Door Frame: 1/8" high impact styrene plastic with U.V. stabilizers
Flush to frame — rounded safety corners, one piece outside flange
with 3/4" deep mounting frame
Standard Latch: Snap latches allow door to fit tightly within frame
Door Hinge: Concealed
Finish: White, with textured exposed surfaces
PA
-
3
0
0
0

V
i
e
w

o
f

d
o
o
r

b
a
c
k
P A - 3 0 0 0 P R O D U C T IN F O R M A T I O N
PA3000 STANDARD SIZES
Nominal Door Size W&H Weight per Door
inches mm lbs. kg.
4 X 6 102 X 152 .5 .25___________________________________
6 X 9 152 X 229 .5 .25___________________________________
8 X 8 203 X 203 .5 .25___________________________________
12 X 12 305 X 305 .5 .25___________________________________
14 X 14 356 X 356 .75 .33___________________________________
14 X 29 356 X 737 4 1.87___________________________________
18 X 18 457 X 457 2.25 1___________________________________
22 X 22 559 X 559 4 1.87___________________________________
24 x 24 610 x 610 4.75 2.15___________________________________
Wall or ceiling opening is W + 3/8” ( 9 mm)
For detailed specifications see submittal sheet
FLUSH NONRATED Plastic Access Door
PA-3000
*22 x 22 and 24 x 24 sizes are
designed for wall installation only.
*
*
U.S.A.: [e-mail] / 800.722.0501 CANADA: [e-mail] / 844.228.3671 INTERNATIONAL: [e-mail] / 905.428.2240
MEXICO: [e-mail] / [phone] INDIA / MIDDLE EAST / NORTH AFRICA: [e-mail] / [phone] SITE: www.acudor.com
This document contains proprietary information which is the property of Acudor Products. It shall not be modified, copied, furnished, nor distributed (in whole or in part) without proper authorization. Copyright © 2020 Acudor Products.
Attachment C-5
Wal-Rich Corporation PVC Termination Screen
WAL-RICH CORPORATION • NEW PRODUCT BULLETIN
CALL [phone] · www.wal-rich.com · FAX [phone]
STAINLESS STEEL TERMINATION SCREENS
Ideal for use on high
efficiency heating equipment
Also as condensate trap
screen & vent stack guard.
Patent# D715,409
2202050 2” Stainless Steel Termination Screen
2202052 3” Stainless Steel Termination Screen
2202054 4” Stainless Steel Termination Screen
2202056 6” Stainless Steel Termination Screen
2202060 1” Stainless Steel Termination Screen
Part# Description
made in usa
♦♦♦♦♦Prevent pests, debris, & leaves from entering vent piping
♦♦♦♦♦Push into hub for easy flush installation. No gluing!
♦♦♦♦♦Patented condensate channel prevents buildup & freezing
♦♦♦♦♦Professional grade finish

Attachment C-6

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