26012_Admiration Hoisery_OMB VIMP Rev1_20230831

Vapor Intrusion Mitigation Plan —
Revision 1
OMB Multi -Family Building (Phase 1)
Admiration Hosiery Mill
Brownfields Property
Yancey Road, S. Tryon Street, and
E. Peterson Drive
Charlotte, North Carolina
Brownfields Project No. 26012-22-060
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H&H Job No. WPP-015
August 31, 2023
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#C-1269 Engineering
#C-245 Geology
2923 South Tryon Street, Suite 100 3921 Sunset Ridge Rd, Suite 301
Charlotte, NC 28203 Raleigh, NC 27607 www.harthickman.com
704.586.0007 main 919.847.4241 main

Vapor Intrusion Mitigation Plan — Rev. 1
Admiration Hosiery Mill Brownfields Property
OMB Multi -Family
Yancey Road, S. Tryon Street, and
E. Peterson Drive
Charlotte, North Carolina
H&H Job No. WPP-015
Table of Contents
1.0
Introduction................................................................................................................ 1
1.1 Background............................................................................................................2
1.2 Vapor Intrusion Evaluation...................................................................................4
2.0
Design Basis................................................................................................................
8
2.1 Base Course Layer and Vapor Barrier...................................................................9
2.2 Horizontal Collection Piping and Vertical Riser Piping.....................................11
2.3 Monitoring Points................................................................................................12
2.4 General Installation Criteria................................................................................13
3.0
Quality Assurance / Quality Control......................................................................
15
4.0
VIMS Effectiveness Testing....................................................................................16
4.1 Influence Testing.................................................................................................16
4.2 Pre -Occupancy Sub -Slab Soil Gas Sampling......................................................16
4.3 VIMS Effectiveness Results................................................................................18
4.3 Indoor Air Sampling (if warranted).....................................................................18
5.0
VIMS Effectiveness Monitoring.............................................................................
21
6.0
Future Tenants & Building Uses............................................................................
22
7.0
Reporting..................................................................................................................
23
Figures
Figure 1 Site Location Map
Figure 2 Site Map
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Attachments
Attachment A
Previous Assessment Data Summary
Attachment B
Vapor Intrusion Mitigation Design Drawings (dated April 18, 2023)
Attachment C-1
VaporBlock 20 (VBP-20) Product Specification Sheets & Installation
Instructions
Attachment C-2
Drago-Wrap Vapor Intrusion Barrier Product Specification Sheets &
Installation Instructions
Attachment C-3
Slotted PVC Pipe Product Specification Sheets
Attachment C-4
Soil Gas Collector Mat Specification Sheets & Installation Instructions
Attachment C-5
Ventilator Specification Sheet
Attachment C-6
Monitoring Point Access Termination Specification Sheets
Attachment C-7
Wal-Rich Corporation PVC Termination Screen
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Contact Information
Prospective Developer (PD): HLJ Mill, LLC and HLJ Multi, LLC
Contact Person: Jay W. Levell
Office: [phone]
Email: [e-mail]
VIMS Installation Contractor: Benco Construction
Contact Person: David Anderson
Office: 813-295-3090
Email: [e-mail]
Environmental Consultant: Hart & Hickman, PC
Contact Person: Trinh DeSa, PE
Office: [phone]
Email: [e-mail]
Brownfields Redevelopment Section Project Manager: Stephanie Graham
Office: [phone]
Mobile: [phone]
Email: [e-mail]
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Vapor Intrusion Mitigation Plan — Rev. 1
Admiration Hosiery Mill Brownfields Property
OMB Multi -Family
Yancey Road, S. Tryon Street, and
E. Peterson Drive
Charlotte, North Carolina
H&H Job No. WPP-015
1.0 Introduction
On behalf of HLJ Mill, LLC and HLJ Multi, LLC (Prospective Developers or PDs), Hart &
Hickman, PC (H&H) has prepared this Vapor Intrusion Mitigation Plan (VIMP) for the
Admiration Hosiery Mill North Carolina Department of Environmental Quality (DEQ)
Brownfields Property (Brownfields Project No. 26012-22-060) located on Yancey Road, S. Tryon
Street, and E. Peterson Drive in Charlotte, Mecklenburg County, North Carolina (Site). A Site
location map is provided as Figure 1.
The Site consists of two contiguous parcels (Mecklenburg County Parcel Identification Nos.
[PINs] 14903211 and 14903201) that total approximately 7.736 acres. The southern portion of the
Site is developed with an approximately 56,624-square foot (sq ft) vacant office and storage
building that was constructed in 1957 and was most recently utilized as the Olde Mecklenburg
Brewery (OMB) administrative office and warehouse facility. The remainder of the Site consists
of a parking lot associated with OMB and vacant land. Proposed redevelopment of the
Brownfields property includes adaptive reuse of the existing office and storage building for
commercial purposes and construction of a multi -family residential apartment building (identified
herein as the OMB Multi -Family building — Phase 1). This VIMP only applies to the OMB Multi -
Family building (Phase 1) that is proposed for the central portion of the Site. Based on the results
of sub -slab vapor sampling in the existing commercial building, no vapor intrusion mitigation, pre-
occupancy sampling, or post -occupancy sampling are warranted for the adaptive re -use portion of
this project, which is planned for non-residential purposes only. The Site and surrounding area
including the proposed footprint of the OMB Multi -Family development are depicted on Figure 2.
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1.1 Background
The Site consisted of primarily vacant or agricultural land (likely pastureland or hayfields) with
residential and/or agricultural structures in the southwestern portion of the Site prior to 1938.
Residential development continued at the Site until the 1950s and remained until 2022. A former
residence located at the Site appears to have also operated as a gasoline station or used car sales
lot briefly in the mid-1970s. In 1957, a portion of the former Admiration Hosiery Mills building
was constructed in the southern portion of the Site. The mill building was expanded in the mid -
to late 1960s, in the late 1970s or early 1980s, and again in the mid- to late 1980s. In 2016, the
former mill building was renovated for use as the OMB administrative office and warehouse, at
which time the most recent building addition was demolished. In 2016, the central portion of the
Site was also developed with the existing parking lot associated with an adjacent brewery.
Between the late 2010s and 2022, three residences and several shed structures located along
E. Peterson Drive in the northern portion of the Site were demolished to foundations with no soil
disturbance.
In January 2013, H&H performed a combined Phase I and Phase II ESA in the central portion of
the Site and a former residence located at 335 E. Peterson Drive in the northeastern portion of the
Site. The combined Phase I and II ESA also included the adjacent Olde Mecklenburg Brewery
property located at 4150 Yancey Road. The 2013 Phase II assessment activities included the
collection of three groundwater samples as described below.
In December 2021, H&H conducted additional Phase II ESA groundwater and sub -slab vapor
sampling activities to evaluate potential environmental impacts from former textile manufacturing
operations at the existing commercial building in the southern portion of the Site. The existing
commercial building is cross -gradient to downgradient of the proposed OMB Multi -Family
building. Therefore, data from the December 2021 Phase II ESA might not be representative of
Site conditions within the footprint of the proposed OMB Multi -Family building. To further
evaluate potential environmental impacts at the Site, H&H performed Brownfields assessment
activities in October and November 2022. The Brownfields assessment activities included
collection of soil, groundwater, soil gas, and sub -slab vapor samples across the Site. A brief
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summary of analytical data related to potential vapor intrusion for the proposed OMB Multi -
Family building is provided in the following sections and excerpted tables and figures from
previous assessment activities are included in Attachment A.
Soil Sampling
In October 2022, H&H collected two composite soil samples (COMP-1 and COMP-2) from within
the proposed footprint of the OMB Multi -Family building. Soil analytical results indicate that no
VOCs or semi-VOCs (SVOCs) were detected in soil samples at concentrations above the
Residential or Non -Residential Preliminary Soil Remediation Goals (PSRGs). The chlorinated
solvent tetrachloroethene (PCE) or its breakdown products trichloroethene (TCE), cis-1,2-
dichloroethene, trans-1,2-dichloroethene, and vinyl chloride were not detected in any soil sample
above the laboratory method detection limits (MDLs).
Groundwater Sampling
In January 2013, H&H collected three groundwater samples from temporary monitoring wells in
close proximity to the proposed OMB Multi -Family building. Results of the groundwater
sampling did not indicate the presence of VOCs or polynuclear aromatic hydrocarbons (PAHs) at
concentrations above laboratory reporting limits. In December 2021, H&H collected three
samples from temporary groundwater monitoring wells (TMW-1 through TMW-3) from the
existing commercial building property in the southern portion of the Site. Laboratory data
indicated the presence of the VOC 1,2-dichloroethane slightly above the 2L Standard in one well,
TMW-2. No SVOCs, TCE, or PCE were detected above MDLs in groundwater samples collected
during this assessment. The existing commercial building property is located cross -gradient to
downgradient of the proposed footprint of the OMB Multi -Family building; therefore, detections
in this area of the Site might not be representative of those under the proposed building footprint.
In October 2022, H&H collected groundwater samples from four temporary monitoring wells
(TMW-1 through TMW-4) installed within or near the footprint of the proposed OMB Multi -
Family building (TMW-3 and TMW-4) and the northern portion of the Site (TMW-1 and
TMW-2). Groundwater analytical results indicate that the VOC 1,2-dichloropropane was detected
above the 2L Standard in sample TMW-3, which was collected in the west -central portion of the
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Site within the footprint of the proposed OMB Multi -Family building. The detected concentration
of 1,2-dichloropropane is below the Residential and Non -Residential Groundwater Screening
Levels (GWSLs). No other VOCs or SVOCs were detected in groundwater at the Site at
concentrations above the 2L Standards or GWSLs during this assessment.
Sub -Slab Vapor and Soil Gas Sampling
In November 2022, H&H sampled eleven temporary soil gas points at the Site. Two soil gas points
(SG-1 and SG-2) were installed in the northern portion of the Site, and nine soil gas points (SG-3
through SG-11) were installed within the footprint of the proposed OMB Multi -Family building.
Results of the soil gas assessment activities completed within the footprint of the proposed multi-
family residential building indicate the presence of the VOCs benzene, 1,3-butadiene, chloroform,
and ethylbenzene in one or more samples at concentrations above Residential SGSLs.
Additionally, the detected concentration of chloroform in one sample exceeded the Non -
Residential SGSL. The chlorinated solvent compound PCE was detected in each soil gas sample
at concentrations below its Residential SGSL. The compound TCE was also detected at a
concentration below the Residential SGSL in just one sample location, SG-2, which is located
approximately 230 feet northeast and cross -gradient of the proposed OMB Multi -Family building.
Therefore, sample SG-2 is not representative of soil gas conditions below the proposed OMB
Multi -Family building, particularly in light of the results from samples SG-3 and SG-4. TCE was
not detected above the laboratory MDL (0.199 micrograms per cubic meter [µg/m3]) in any other
exterior soil gas sample or in any of the four sub -slab vapor samples collected at the Site.
1.2 Vapor Intrusion Evaluation
As summarized in the Brownfields Assessment Report, H&H utilized the DEQ Risk Calculator to
evaluate potential cumulative risks for the soil gas to indoor air vapor intrusion pathway using the
data from the previous assessment activities. The DEQ DWM SGSLs are conservative and based
upon a lifetime incremental cancer risk (LICR) of 1 x 10-6 for potential carcinogenic effects and a
Hazard Quotient (HQ) of 0.2 for potential non -carcinogenic effects. The DEQ and EPA acceptable
risk level for potential carcinogenic risks is a cumulative LICR of 1 x 10-4 or less, and the
acceptable risk level for non -carcinogenic risks is a hazard index (HI) of 1.0 or less. The HI is the
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sum of HQs for each detected compound. A worst -case risk calculator was run for a residential
and non-residential scenario for Exposure Unit 1 including soil gas sample SG-2.
Risk calculator results for a residential scenario for the proposed OMB Muli-Family Building
indicate a cumulative LICR of 3.0 x 10-5 and an HI level of 0.84. Under a non-residential land use
scenario, risk calculator results indicate an LICR of 2.2 x 10-6 and an HI value of 0.067. The
calculated health risks for the OMB Multi -Family Building are within acceptable levels for both
residential and non-residential land use scenarios. The DEQ risk calculator summary sheets are
included in Attachment A.
Note, the chlorinated solvent TCE was not detected above laboratory MDLs in the groundwater or
soil samples at the Site and was only detected in one exterior soil gas sample (SG-2 at 4.97 µg/m3)
located approximately 230 ft from the proposed OMB Multi -Family building indicating there it is
not likely a source or notable mass of TCE present on the Site. TCE was not detected above the
laboratory MDL (0.199 µg/m3) in any other exterior soil gas sample or in any of the four sub -slab
vapor samples collected at the Site. Therefore, TCE is not considered to have been "detected" for
the proposed OMB Multi -Family building (Phase 1) addressed by this VIMP for purposes of the
North Carolina DEQ Brownfields Redevelopment Section (BRS) Guidance. Based on the risk
evaluation, a VIMS is being proposed for installation within the OMB Multi -Family building by
the PD as a precautionary measure, as the analytical data do not indicate unacceptable residential
use risk levels are present below the footprint of the proposed residential building.
To address potential environmental concerns associated with historical on -Site and nearby off -Site
operations, a Brownfields Property Application was submitted for the Site on February 25, 2022.
A Letter of Eligibility (LOE) was received from the DEQ BRS on April 14, 2022. DEQ BRS
issued an Amended LOE dated May 19, 2023, though this was not solicited by the PDs.
Installation of the VIMS is anticipated to satisfy the following Land Use Restriction (LUR) which
is anticipated to be standard language in the pending Brownfields Agreement:
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No enclosed building may be constructed on the Brownfields Property and no existing
building, defined as those depicted on the plat component of the Notice of Brownfields
Property referenced in paragraph 18 below, may be occupied until DEQ determines in
writing that:
i. the building is or would be protective of the building's users and public health from the
risk of vapor intrusion based on site assessment data, or a site -specific risk assessment
approved in writing by DEQ; or
ii. a vapor intrusion mitigation system (VIMS) has been:
1. designed to mitigate vapors for subgrade buildingfeatures in accordance with the most
recent and applicable 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, and that said design shall fully protect public health to the satisfaction of a
professional engineer licensed in North Carolina, as evidenced by said engineer's
professional seal, and shall include a performance monitoring plan detailing
methodologies and schedule, both of which are subject to prior written DEQ approval;
and
2. installed and an installation report is submitted for written DEQ approval that includes
details on any deviations from the system design, as -built diagrams, photographs, and
a description of the installation with said engineer's professional seal confirming that
the system was installed per the DEQ-approved design and will be protective of public
health.
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Engineer's Certification
According to the DWM Vapor Intrusion Guidance: "Risk -based screening is used to identify sites
or buildings likely to pose a health concern, to identify buildings that may warrant immediate
action, to help focus site -specific investigation activities or to provide support for building
mitigation and other risk management options including remediation." In addition, this VIMP was
prepared to satisfy the standard vapor intrusion mitigation provisions anticipated to be included in
the pending Brownfields Agreement. Per the North Carolina Brownfields Property Reuse Act
130A-310.32, a prospective developer, with the assistance of H&H for this project, is to provide
DEQ with "information necessary to demonstrate that as a result of the implementation of the
brownfields agreement, the brownfields property will be suitable for the uses specified in the
agreement while fully protecting public health and the environment instead of being remediated to
unrestricted use standards." It is in the context of these risk -based concepts that the H&H
professional engineer makes the following statement:
The Vapor Intrusion Mitigation System (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.
Trinh DeSa '''• ' or
North Carolina PE (#044470)
Hart & Hickman, PC (#C-1269)
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2.0 Design Basis
The VIMS design drawings for the OMB Multi -Family Phase 1 development are included in
Attachment B (dated April 18, 2023). The following VIMS design sheets will be used to guide
construction of the VIMS:
• Sheets VM-0 through VM-3 show the VIMS layout in each building area; and
• Sheets VM-A through VM-C include section details and specifications.
While there are no unacceptable soil -gas to indoor air risk levels below the footprint of the
proposed building (Section 1.0), to further reduce the potential for structural vapor intrusion, the
VIMS will operate as a passive sub -slab venting system that includes a network of horizontal sub -
slab and vertical above -slab riser piping connected to wind ventilators installed above the building
roof to enhance the passive system.
The proposed OMB Multi -Family development plan includes one five -story residential apartment
building with an approximate enclosed ground floor area of approximately 68,000-sq ft. The
current development plans do not contain proposed commercial spaces or pour -back spaces in the
building. The residential building is proposed to contain a post -tensioned (PT) slab -on -grade with
thickened slabs below load -bearing walls, with select portions of the building containing column
construction as depicted on the VIMS design drawings. Due to the slab being a PT slab, it is not
recommended that additional monitoring points be added or other holes be drilled through the slab
after tightening of the PT slab tendons.
The basement level includes a mechanically -ventilated partial parking garage floor. The first floor
of the building will contain a parking garage, an open-air courtyard, leasing and amenity areas, as
well as residential living spaces. Floors two through five will contain a parking garage, an open-
air courtyard, and residential living spaces. The building will contain a flat roof that is inaccessible
to residential tenants and will contain mechanical equipment. Note, in order to provide additional
ventilation to the courtyard, two concrete ventilation ducts will be installed below the building slab
and connect the courtyard to the ambient air outside the building's footprint. These ventilation
ducts will not connect or exchange air within the building and the proposed VIMS vent piping
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(Section 2.2) will be located between the ventilation ducts and the building slab. The ventilation
ducts are not currently proposed to include mechanical fans and the openings of each side of the
ducts will be located near the ground level outside of the building footprint.
There are two elevators and one stairwell in the parking garage of the basement floor and an
additional elevator and stairwell that start on the first floor of the parking garage that connect to
the upper floors and thus could exchange air with the upper floors through the doorways. Further,
there is an elevator lobby adjacent to the elevator in the southern portion of the basement in the
building. The ground floor area of the basement elevator lobby and stairwell slab is approximately
600 square feet.
The VIMS will be divided into several VIMS treatment areas to maximize system effectiveness
that are generally split by structural features including thickened slabs, slab -steps, or large footers
as indicated on the design drawings (Appendix B).
2.1 Base Course Layer and Vapor Barrier
The VIMS includes placement of a minimum 4-inch thick base course stone (gravel) layer
consisting of high permeability stone (washed #57 stone, or similar high permeability stone
approved by the design engineer) below the concrete slab of the building. A vapor barrier (vapor
liner) will be installed above the base course stone layer and directly beneath the slab. The vapor
barrier will also be installed underneath of and along vertical walls within elevator pits and on
vertical sub -grade retaining walls backfilled with soil that are located adjacent to enclosed or
occupiable spaces. A horizontal collection piping network will be installed within the base course
stone layer below the ground floor slabs prior to placement of the vapor barrier. The horizontal
vapor collection piping is discussed further in Section 2.2. below. The piping layouts are shown
on the VIMS design drawings (Attachment B).
The vapor barrier will consist of a VOC-tested vapor barrier, such as Vaporblock® Plus 20
(VBP20) manufactured by Raven Industries (Raven) or Drago® Wrap Vapor Intrusion Barrier
manufactured by Stego® Industries (Stego). The vapor barriers will be installed per manufacturer
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installation instructions. Technical specifications for each vapor barrier product listed above are
included in Attachment C.
The vapor barriers will be installed over the base course stone layer or applicable vertical sub -
grade walls and footers to cover the areas shown on the design sheets. Each vapor barrier
manufacturer recommends select sealing agents (mastics, tapes, etc.) for their vapor barrier
product. In accordance with manufacturer installation instructions, alternative vapor barrier
products that are not approved by the manufacturers for sealing shall not be used, unless approved
by the design engineer and specific manufacturer.
The exterior edges of the vapor barrier will be attached and sealed to building footings and
subsurface concrete features utilizing the tape specified in the manufacturer instructions. Seams
within the building envelope will have a minimum of 6-inches or 12-inches of overlap (depending
on the vapor barrier manufacturing specifications) and will be sealed with the tape specified in the
manufacturer instructions. If the vapor 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. The
vapor barriers shall be attached to concrete using either the Raven Butyl -Seal or Stego DragoTack
Tape, or similar manufacturer approved methods, depending on the specific vapor barrier used.
In areas where utility penetrations (i.e., piping, ducts, etc.) are present and the use of the tape
recommended by the manufacturer is not practical or is deemed as "ineffective" by the design
engineer certifying the VIMP, an alternative sealant product specified by the vapor barrier
manufacturer should be used, such as Raven Pour-N-Sea1TM or Drago Sealant, or similar vapor
barrier manufacturer sealing products. If used, the location of these products will be noted in the
field logs. 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.
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2.2 Horizontal Collection Piping and Vertical Riser Piping
Passive sub -slab venting will be accomplished using horizontal slotted or perforated collection
piping which will collect vapor from beneath the occupiable and enclosed ground floor slab areas
and discharge the vapors above the building roofline. The sub -slab vent piping will consist of
slotted or perforated 3-inch diameter Schedule 40 (SCH 40) piping with standard PVC fittings.
An alternative to the sub -slab vent piping includes the soil gas collector mat, which is a 1-inch by
12-inch rectangular conduit, that may be installed through the stone layer with 3-inch PVC piping
installed through concrete footings. Above -slab piping will consists of 3-inch solid SCH 40 PVC
pipe. Solid sections of VIMS piping shall maintain a minimum 1% slope toward the sub -base
stone layer to drain potential condensation water. Product specifications for the sub -slab collection
piping are provided in Attachment C.
The vertical riser pipes will terminate above the roofline. While a passive system can effectively
operate without rooftop ventilators, to further enhance the passive VIMS, Empire Model TV04SS
(stainless steel) wind -driven turbine ventilators (or engineer approved alternative) will be installed
on the discharge end of the 3-inch SCH 40 PVC vertical riser piping above the building roofline
to further promote air exhaust from the risers. The ventilators will generally be located on areas
of the roof that receive effects from wind under normal weather conditions. However, as the
ventilators are intended to enhance the passive VIMS and aren't required for proper function of
the system, some ventilators may be positioned in areas that receive intermittent effects from wind
based on the building layout and other building components. The requirements for the discharge
location based on distances to building materials, operable openings, air intakes, etc. will be
followed as indicated in the design drawings and applicable building code.
To aid in identification of the vapor mitigation piping, the piping will be labeled by the Site
contractors with stickers adhered to a smooth surface or permanent labels which read, "Vapor
Mitigation — Contact Maintenance", or similar language, on accessible piping at intervals of no
greater than 10-linear feet. Similar labels will also be affixed near the exhaust discharge on the
roof. VIMS labeling will be inspected by H&H prior to covering risers or building occupancy.
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Exhaust discharge locations must be a minimum of 2 ft above the roofline and a minimum 10 ft
from an operable opening (e.g., door or window) or air intake into the building. Note that the
exhaust locations on the roof depicted in the VIMS design may be repositioned within the
requirements specified above and pending approval by the design engineer certifying the VIMP.
Product specifications for the proposed turbine ventilators are provided in Attachment C.
Electrical junction boxes (120VAC, min 15-amp required) will be installed on the roof in close
proximity to riser exhaust discharges should connection of an electrical (active) fan be warranted
in the future.
2.3 Monitoring Points
Monitoring points constructed with 2-inch diameter SCH 40 PVC will be installed as part of the
VIMS to conduct effectiveness testing (see Section 4.0), including vacuum influence
measurements, and for the collection of sub -slab soil gas samples for laboratory analysis. The
monitoring point locations are shown on the VIMS design drawings (Attachment B).
In general, monitoring points are placed at remotely distant locations from vertical riser piping
locations and in representative areas of the ground floor enclosed areas. To limit disturbance to
residents or occupants during future monitoring events, the monitoring point access ports will be
located in mechanical rooms, amenity spaces, or corridor hallways and protected by either a floor
clean -out style cover or wall access panel. Monitoring points located in stairwells must be located
beneath accessible stair landings or in areas away from the main tenant walkways. Several
monitoring points will be connected to extended sub -slab horizontal pipes which place the intakes
of the monitoring points below occupied spaces. The extended monitoring points are expected to
have no more than approximately 6 ft of extension pipe. Product specifications for the proposed
monitoring point components are provided in Attachment C.
In the event that a monitoring point cannot be installed due to building component conflict or is
damaged/destroyed during construction, a replacement monitoring point can be constructed,
pending approval by the design engineer certifying the VIMP and coordination to avoid PT
tendons in the slab. The replacement point(s) shall consist of one of the specified designs in the
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design drawings. DEQ will be notified in advance for approval if monitoring points are notably
relocated in relation to the approved locations specified in the VIMP (i.e., if moved to a location
in a different mitigation area, section of slab, or tenant area). The specific types and locations of
monitoring points installed will be documented in as -built drawings provided in a VIMS
installation completion report.
2.4 General Installation Criteria
The VIMS installed components (e.g., vapor barrier, piping, monitoring points, etc.) shall be
protected by the installation contractor and sub -contractors throughout the project. Protective
measures (e.g., flagging, protective boards, etc.) shall be used as needed to prevent damage to the
VIMS components. For example, the monitoring points and riser duct piping should be capped
with a removable slip -cap or cover immediately following installation to prevent water and/or
debris from entering the VIMS, and vapor barrier shall be protected from punctures and tears
during site -work.
For each phase of construction (above and below slab), construction contractors and sub-
contractors will be instructed to use "low or no VOC" products and materials, when possible.
Furthermore, the construction contractors will be instructed to not use products containing the
compounds PCE or TCE. Prior to submittal of a VIMS installation completion report, the
construction contractor and sub -contractors shall be directed to provide safety data sheets (SDSs)
for products and materials used during construction. SDSs provided by the contractor and sub-
contractors will be included in the VIMS installation completion report.
Utility Trench Dams
Based on the acceptable risk levels for soil -gas to indoor air pathway for residential use scenario
(Section 1.0), and no known source or area of elevated contaminants at the Site, the use of utility
trench dams that sometimes can be used to prevent vapor migration along utility trenches are not
warranted for the OMB Multi -Family development. However, as a precautionary measure, the PD
has elected to install trench dams on utilities with transmissive backfill layers that run underneath
the perimeter of the building. The utility trench dams are proposed for the sanitary sewer and
potable water lines located on the northern portion of the building as these utilities are planned to
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run from S. Tryon Street along the northern side of the building. Installation details for the utility
trench details are included in the VIMS design drawings
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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 riser pipe connections, pipe exhaust, and ventilators.
Additional inspections will be conducted if the system(s) are activated to verify electric fans (if
installed) are functioning properly. Each inspection will be performed by, or under direction of,
the design engineer certifying the VIMP. Inspections will be combined, when possible, depending
on construction sequencing and schedule. The inspections will include field logs and photographs
for each section of slab. The contractor shall notify the engineer certifying the VIMP, or his/her
designee, with a minimum 48-hour (two business day) notice prior to a planned inspection, and
H&H will provide a subsequent 48-hour notice to DEQ for the pending inspection.
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4.0 VIMS Effectiveness Testing
4.1 Influence Testing
Post -installation (pre -occupancy) influence testing will be conducted on each VIMS treatment area
to evaluate vacuum communication across the slab and confirm sufficient depressurization can be
obtained should electric fans be needed in the future. Influence testing will be conducted for each
treatment area following installation of the horizontal collection piping, placement of the vapor
barrier, and completion of concrete slab pours.
For system influence testing, one or more vapor extraction fans will be attached directly to vertical
riser piping for the section of the slab being evaluated. Pressure differential will be measured at
extraction fan locations and sub -slab vacuum levels will be measured at each monitoring point
location. While any measurable sub -slab vacuum level can indicate there is influence below the
slab, a pressure differential below the slab of at least 4 pascals (approximately 0.016 inches of
water column [in -WC]) at remote distances from riser locations in each VIMS treatment area may
be considered as sufficient evidence of adequate sub -slab VIMS influence per evaluation by the
design engineer. Vacuum influence testing results will be included in the VIMS installation
completion report. If the influence testing results indicate that modifications to the VIMS are
needed to achieve sufficient sub -slab depressurization, H&H will notify DEQ of the modifications
prior to submittal of a VIMS installation completion report.
4.2 Pre -Occupancy Sub -Slab Soil Gas Sampling
Following VIMS installation, but prior to occupancy of the building(s), sub -slab soil gas (vapor)
samples will be collected from select monitoring points to further evaluate the potential for
structural vapor intrusion. The sub -slab soil gas samples will be collected from locations generally
representative of the slab conditions. Sub -slab soil gas sample analytical results will be used to
evaluate potential vapor intrusion risks to future occupants of the building using the soil -gas to
indoor air pathway calculations in the DEQ risk calculators. Eleven sub -slab soil gas samples are
proposed across the building footprint from monitoring points MP -Al, MP -I, MP-4, MP-6, MP-
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9, MP-10, MP-12, MP-13, MP-15, MP-18, and MP-20 (see Sheets VM-0 and VM-1). As indicated
below, the indoor air sampling event is anticipated to be conducted concurrently with sub -slab
sampling event. In this case, a duplicate sample for the indoor air sampling will be collected for
laboratory QA/QC during the sampling event. If the sub -slab vapor and indoor sample events are
not conducted concurrently, then a separate sub -slab soil gas duplicate sample will be collected
with a minimum of one duplicate per sampling event.
Prior to sample collection, leak tests will be performed at each sub -slab soil gas sample location.
A shroud will be constructed around the monitoring point, sub -slab soil gas sampling train, and
sample canister. Air within the shroud will be flooded with helium gas, and helium concentrations
will be measured and maintained using a calibrated helium gas detector. With helium
concentrations within the shroud maintained, sub -slab soil gas will be purged from the sampling
point with an air pump or syringe and collected into a Tedlar bag. The calibrated helium gas
detector will be used to measure helium concentrations within the Tedlar bag sample to confirm
concentrations are less than 10% of the concentration maintained within the shroud. A minimum
of three sample train volumes will be purged from each point prior to and during the leak testing
activities. If the leak tests are unacceptable, the sampling train will be reinstalled and adjusted
(e.g. tightening of fittings), and the leak test will be repeated. Samples will not be collected if the
leak test is unacceptable.
The sub -slab soil gas samples will be collected over an approximate 10-minute period using
laboratory supplied batch -certified 1-liter or 1.4-liter Summa canisters and laboratory supplied
flow regulators calibrated with an approximate flow rate of 100 milliliters per minute. The vacuum
in the Summa canisters will be measured at the start and end of the sampling event and will be
recorded by sampling personnel. The vacuum in each canister at the conclusion of the sampling
event shall remain above 0 inches of mercury (inHg), with a target vacuum of approximately 5
inHg. The laboratory analyzing the samples will determine if acceptable vacuum is present in the
canisters to allow for proper analysis.
The samples will be submitted to a qualified laboratory under standard chain of custody protocols
for analysis of full -list VOCs by EPA Method TO-15, including naphthalene. The analytical
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laboratory will be instructed to report vacuum measurements as received at the lab and J-flag
concentrations (concentrations measured between the laboratory method detection limit and
laboratory reporting limit) for each sample. In addition, H&H will request that the laboratory
report compound concentrations to the lower of the laboratory method detection limits or to the
extent possible, the DEQ DWM Residential SGSLs.
4.3 Indoor Air Sampling
Based on the low-level concentration of TCE detected along the northern portion of the property,
as a precaution, in addition to the sub -slab sampling, indoor air sampling will also be conducted
during pre -occupancy sampling. The indoor air sampling will be conducted concurrently (within
approximately 48-hours) of the sub -slab sampling for comparison for the data to evaluate the
potential for vapor intrusion into the buildings. To limit the potential for interference with the
sampling results, the indoor air samples will be collected prior to the corresponding sub -slab vapor
sample.
Per DEQ request, six indoor air samples (IAS- I through IAS-6) will be collected from the building
during pre -occupancy sampling from Level 1 (ground floor) at the proposed locations depicted on
Sheet VM-1 (Attachment B). The indoor air sample locations are in representative areas of the
building in the vicinity of sub -slab vapor sample locations. The samples will be collected using
individually -certified 6-liter stainless steel Summa canisters connected to in -line flow controllers
equipped with a vacuum gauge. The flow controllers will be set by the laboratory to allow the
samples to be collected over an approximately 24-hour period for a residential use scenario. 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. The
background air samples will be used to evaluate the potential for ambient sources of contaminants
that may impact the indoor air samples results, such as contaminants from nearby gas -powered
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vehicles or off -site emissions. Due to standard air exchange between indoor air and ambient air
through heating, ventilation, and air conditioning (HVAC) equipment and typical opening of
doors/windows for tenant use, compounds present in the indoor sample may be a result of outside
sources, and not vapor intrusion. Prior to and after the indoor and background air samples are
collected, vacuum in the canisters will be measured using a laboratory -supplied vacuum gauge and
recorded by sampling personnel. A vacuum above 0 inHg and ideally around 5 inHg will be
maintained within the canisters at the conclusion of the sampling event.
The starting and ending vacuum in each canister will be recorded on the sample chain -of -custody.
Periodic checks will be conducted by sampling personnel to monitor the pressure within the
Summa canisters during sampling to ensure adequate sample volume is collected. The sample
canisters will then be labeled and shipped under standard chain -of custody procedures to a
qualified laboratory for analysis of select VOCs by EPA Method TO-15. The select list will be
based upon the VOC compounds detected in historical samples collected from the Site across all
media that are part of the available laboratory analytical certifications. If additional compounds
are detected in the sub -slab vapor samples that weren't detected previously on the Site, the
laboratory will also be requested to report these compounds in the indoor air sample results. Note,
because the sub -slab vapor samples will be collected concurrently with the indoor air samples and
submitted together to the laboratory, based on the timing of the laboratory analysis, it may not be
possible for the laboratory to report additional compounds not originally requested.
The analytical laboratory will be instructed to report vacuum measurements at receipt and J-flag
concentrations for each sample. H&H will request that the laboratory report compound
concentrations to the lower of the laboratory method detection limits or the DEQ DWM
Residential Vapor Intrusion Indoor Air Screening Levels (IASLs) to the extent possible. In
addition, an Indoor Air Building Survey form (Appendix C of the DWM VI Guidance) will be
completed for each sampling event with information regarding the HVAC system(s).
After receipt of analytical data, an evaluation and comparison of both the sub -slab soil gas and
indoor air sample data will be conducted. Risk levels will be calculated using the DEQ Risk
Calculators to determine if unacceptable risk levels are present and may be a result of vapor
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intrusion from Site contaminants. In the event that calculated cumulative risks for a residential
scenario exceed acceptable risk levels listed above, then additional measures, such as converting
the VIMS from the passive system to an active system, will be evaluated. In this case, the proposed
plans and modifications will be provided for DEQ for review and approval.
Note, 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 the sub -slab and indoor air data.
4.4 VIMS Effectiveness Results
The results and analysis of the sub -slab soil gas and indoor air data will be submitted to DEQ with
the final VIMS Installation Completion Report (discussed in Section 6.0). After receipt of the
analytical results, H&H will use the most recent version of the DEQ Risk Calculator to evaluate
cumulative vapor intrusion risks under a residential use scenario.
H&H will consider the VIMS effective if the calculated cumulative risks for the sub -slab vapor to
indoor air risk calculations and indoor air calculations are within acceptable levels in accordance
with DEQ's Risk Calculator results. The DEQ acceptable risk levels include:
• Cumulative carcinogenic risks less than 1x10-4; and
• Non -carcinogenic risk levels below a HI of 1.0.
In the event that calculated cumulative risks are greater than the acceptable risks listed above, then
an evaluation of potential interference of compounds from building material off -gassing will be
conducted and the data will be presented to DEQ. If it is determined that the sub -slab vapor or
indoor air concentrations are from Site contaminants that are resulting in vapor intrusion,
confirmation samples may be collected from the area of concern per discussion with DEQ.
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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 -slab vapors above the roofline. The passive
system will be enhanced with wind -turbine ventilators to promote air exhaust from the sub -slab.
As such, differential pressure monitoring is not anticipated. If the VIMS is converted to an active
system with electric fans based on VIMS efficacy testing results, mitigation system modifications
and plans for additional VIMS efficacy testing will be submitted to the DEQ BRS for approval
prior to implementation. The specific electric fans to be used will be selected by the design
engineer based on the results of the influence testing discussed in Section 4.0.
Post -occupancy sub -slab soil gas sampling and indoor air is anticipated to be performed on a semi-
annual basis for two years (four events) following building occupancy. Upon discussion with DEQ
during development of this VIMP, the post -occupancy sampling will include sub -slab soil gas
samples from the eleven locations from the pre -occupancy sampling and two locations for indoor
air samples. The two indoor air samples will be collected from the northern portion of the building
at the IAS-1 and IAS-2 proposed pre -occupancy locations. Note, the frequency, amount, and
locations of the sub -slab vapor sampling for the post -occupancy sampling events may be reduced
or modified depending on the pre -occupancy sampling results, pending DEQ review and approval.
A recommendation regarding the post -occupancy sub -slab vapor sampling will be provided in the
VIMS installation report based on the pre -occupancy sampling results and risk calculations.
The post -occupancy sampling is anticipated to be conducted using the procedures described in this
VIMP. After the two years of semi-annual post -occupancy sampling, if the sampling results
indicate consistent or decreasing concentrations within acceptable risk levels, a request to modify
or terminate sampling may be submitted for DEQ approval. No changes to the sampling frequency
or termination of sampling will be implemented until written approval is obtained from DEQ.
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6.0 Future Tenants & Building Uses
The future use of the proposed Site building includes multi -family residential use. After
occupancy of the Site building, VIMS maintenance and upkeep will be the responsibility of the
building owner or property management group. If vapor mitigation components are damaged or
need to be altered for building renovations, the building's owners or management will be instructed
to contact appropriate parties to conduct the appropriate maintenance. A North Carolina licensed
Professional Engineer (NC PE) will be contacted to oversee or inspect the modifications or repair
activities, and the NC PE shall also contact the DEQ Brownfields Redevelopment Section to notify
them of the proposed repair activities and discuss reporting requirements.
As part of the annual Land Use Restriction Update submittal that is required under the filed
Brownfields Agreement, the building owner or property management group should complete a
visual inspection of the exposed parts of the system including, but not limited to, the vertical risers
and ventilators on the roof and the monitoring points. H&H recommends annual inspections be
documented and kept on record to be provided to DEQ upon request.
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7.0 Reporting
A VIMS Installation Completion Report (sealed by a NC PE) documenting installation activities
associated with the VIMS will be submitted to DEQ following confirmation that the mitigation
system is installed and effectively mitigating potential vapor intrusion risks to building occupants.
The report will include a summary of VIMS installation activities including PE sealed as -built
drawings, QA/QC measures, SDSs of materials used in construction, VIMS effectiveness testing
results, and inspection documents including photographs and field logs. The report will also
include a statement provided by the design engineer as to whether the VIMS was installed in
accordance with the DEQ approved VIMP and is protective of public health as defined in Section
1.0, and as evidenced by the VIMS inspections performed by the engineer or designee of the design
engineer, results of the influence testing, results of the analytical testing, and QA/QC measures as
described in this VIMP. Deviations from the approved design will be provided in the report.
The pending Notice of Brownfields Property for the Site is anticipated to include standard land
use restrictions that indicate the building(s) shall not be occupied until DEQ provides written
compliance approval for the installation and performance of the VIMS as documented in the
installation report. However, we understand that DEQ may provide conditional approval with
submittal of a data summary package in lieu of the full VIMS Installation Completion Report if
warranted based on timing of the proposed building occupancy date and report review times. No
occupancy of the building can occur without prior written approval of DEQ.
After each semi-annual post -occupancy sub -slab vapor and indoor sampling event, a report will
be submitted to DEQ to document the sampling activities and results with recommendations for
future post -occupancy sampling (Section 5.0).
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wf
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CopyrigMt�OO 2013 National Geographic Soeiety,!i=cubed
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TITLE
0 2,000 4,000 SITE LOCATION MAP
N SCALE IN FEET PROJECT ADMIRATION HOSIERY MILLS
YANCEY ROAD, S. TRYON STREET &
E. PETERSON DRIVE
U.S.G.S. QUADRANGLE MAP CHARLOTTE, NORTH CAROLINA
2923 South Tryon Street - Suite 100
CHARLOTTE WEST, NORTH CAROLINA2013 hart 10%w hickman Charlotte, North Carolina28203
CHARLOTTE EAST, NORTH CAROLINA2013 Livens #C-I 69/#C-245Geoo
SMARTER EP7V[R4NfV1ENTAL 54LLlTf4N5 License # C-1269 / # C-245 Geology
QUADRANGLE DATE: 3-29-21 REVISION NO: 0
7.5 MINUTE SERIES (TOPOGRAPHIC) rJOB NO: WPP-015 FIGURE NO: 1

Attachment A
Previous Assessment Data Summary
do
hart hickman
WAOJ EREWROHME"TAaSOLUMUS

Table 1
Summary of Soil Analytical Results
Admiration Hosiery Mill
Yancey Road, S. Tryon Street, and E. Peterson Drive
Charlotte, North Carolina
Brownfields Project #26012-22-060
H&H Job No. WPP-015
Sample ID
COMP-1
COMP-2
COMP-3
COMP-DUP
COMP-4
COMP-5
BG-1
Published Background
Maximum
Date Sample Collected
10/28/2022
1 10/28/2022
10/27/2022
10/27/2022
10/28/2022 1 10/28/2022
10/28/2022 1 10/28/2022
10/28/2022 1 10/28/2022
Proposed Area of Cut Northeast
Proposed Area of Cut Southwest
Residential
Industrial/
Metals Concentrations for North
Concentration of
Sample Location
Footprint of Proposed Apartment
Proposed Area of Cut in the
of the Former OMB
of the Former OMB
Undisturbed Area in the
PSRGs (1)
Commercial
Carolina Soils (2)
Contaminants for
Building
Northeastern Portion of the Site
Southwestern Portion of the Site
PSRGs (1)
Toxicity
Administrative Offices
Administrative Offices
(S)
Characteristic
Depth (ft bgs)
0-2 0-2
0-2
0-2 2-4
0-2 1 2-4
0-2 2-4
Range Mean
Units
m /k 8260D, 8270E, 602013/7471B/7199 ; m /L 6010D
VOCs (8260D)
Acetone
0.013 J
0.091
0.014 J
0.022
0.021 J
0.041
0.019 J
0.013 J
NA
NA
14,000
210,000
2-Butanone (MEK)
<0.0008
0.011 J
<0.0008
<0.001
<0.0009
<0.0009
<0.0008
<0.0008
NA
NA
5,500
40,000
Carbon disulfide
<0.0008
0.001 J
<0.0007
<0.0007
<0.0009
<0.0009
0.006
<0.0008
NA
NA
160
740
4-Isopropyl toluene
<0.001
0.006
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
NA
NA
NS
NS
Methylene chloride
<0.001
0.003 J
<0.001
<0.001
<0.002
<0.002
<0.001
<0.001
NA
NA
58
650
SVOCs (8270E)
Benzo(a)anthrace ne
<0.163
<0.159
<0.160
<0.152
<0.193
<0.190
<0.165
0.355 J
NA
NA
1.1
21
Benzo(a)pyrene
<0.173
<0.169
<0.169
<0.161
<0.204
<0.201
<0.174
0.293 J
NA
NA
0.11
2.1
Benzo(b)fluoranthene
0.196 J
<0.168
<0.168
<0.160
<0.203
<0.199
<0.173
0.334 J
NA
NA
1.1
21
Chrysene
<0.167
<0.163
<0.163
<0.155
<0.197
<0.194
<0.168
0.321 J
NA
NA
110
2,100
Fluoranthene
0.278 J
0.202 J
<0.142
<0.135
<0.171
<0.168
0.183 J
0.652 J
NA
NA
480
6,000
Phenanthrene
<0.245
<0.239
<0.240
<0.228
<0.289
<0.284
<0.247
0.300 J
NA
NA
NS
NS
Pyrene
0.252 J
0.197 J
<0.154
<0.147
<0.186
<0.183
0.167 J
0.571 J
NA
NA
360
4,500
Metals (6020B/7471B/7199)
1.92
1.94
1.06
1.31
1.59
1.27
1.18
0.687
1.34
2.28
0.68
3.0
1.0 - 18
4.8
Arsenic
Barium
46.3
49.8
42.8
32.7
39.6
56.9
98.9
164
75.1
37.4
3,100
47,000
50-1,000
356
Cadmium
0.116 J
0.249 J
0.0615 J
0.0497 J
<0.0360
<0.0354
0.151 J
0.0803 J
0.400
<0.0334
1.4
20
1.0 - 100)
4.3(3)
Trivalent Chromium
131
40.4
66.5
71.3
64.3
164.75
40.4
45.6
38.3
56.5
23,000
350,000
7.0 - 300
65
Hexavalent Chromium
<0.170
<0.163
<0.162
<0.158
<0.198
1.25
<0.167
<0.175
<0.173
<0.181
0.31
6.5
NS
NS
Total Chromium
131
40.4
66.5
71.3
64.3
166
40.4
45.6
38.3
56.5
--
--
7.0 - 300
65
Lead
42.9
28.3
37.8
30.8
6.93
7.35
14.0
12.3
63.2
10.9
400
800
ND - 50
16
Mercury
0.0285 J
0.0980
0.0246 J
0.0232 J
0.0449
0.0304 J
0.0288 J
0.117
0.0454
0.0440
4.7
70
0.03 - 0.52
0.12
Selenium
0.442
0.423
0.262 J
0.432
0.382
0.419
0.331
0.161 J
0.558
0.776
78
1,200
<0.1 - 0.8
0.42
Silver
0.0390 J
0.0285 J
0.0215 J
0.0199 JB
0.0125 J
0.0093 J
0.0337 J
0.0249 J
0.0573 JB
0.0228 JB
78
1,200
ND-5 .0(4)
NS
TCLP Chromium (6010D)
5.0
Notes:
1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) (July 2022)
2) Range and mean values of background metals for North Carolina soils published in Elements in North American Soils by Dragun and Chekiri, 2005.
3) Background values reported for soils of the southeastern United States.
4) Background values reported for soils of the conterminous United States.
5) Obtained from Chapter Seven of the Environmental Protection Agency (EPA) SW-846 Compendium: Introductory and Regulatory Definitions Pertaining to Hazardous Waste Characteristics (2004).
Trivalent chromium calculated as total chromium minus hexavalent chromium.
Aside from metals, only constituents detected in at least one sample are shown.
Compound concentrations are reported to the laboratory method detection limits.
Bold indicates concentration exceeds DEQ IHSB Residential PSRG and is above Site -specific and regional background levels.
J = estimated concentration that is above the laboratory method detection limit (MDL) but below the laboratory reporting limit
B = analyte was detected in a method blank
NS = no standard has been established
NA = not analyzed for specified constituent
mg/kg = milligrams per kilogram; mg/L = milligrams per Liter
Table 1 (Page 1 of
11)
haps://haAhick.sharcpoint.com/sitm/Mast�Files-I/Shated Files-1/Shared Documents/AAA-MeslerP jwWWhite Point Pon-(WPP)/WPP-015 Yancey Road/BrownfieldsBownfields AssmsmenVTables/Data Tables Hart Bc Hickman, !l.

Table 2
Summary of Well Construction and Depth to Groundwater
Admiration Hosiery Mill
Yancey Road, S. Tryon Street, and E. Peterson Drive
Charlotte, North Carolina
BF #26012-22-060
H&H Job No. WPP-015
Static Depth to
Groundwater
Well Diameter
Ground Surface
Total Well Depth
Screen Length
Well ID
TOC Elevation (ft)
Groundwater
Elevation
(in)
Elevation (ft)
(ft below TOC)
(ft)
ft below TOC
ft below TOC
TMW-1
95.18
1
94.88
29.70
15
13.00
82.18
TMW-2
101.58
1
100.75
30.66
15
19.84
81.74
TMW-3
100.00
1
99.62
19.71
15
18.60
81.40
TMW-4
1 104.28
1 1
1 104.03
1 29.75
1 15
1 22.04
1 82.24
Notes:
Depth to groundwater measurements collected on October 31, 2022
Top of casing (TOC) elevations were surveyed by H&H relative to an arbitrary datum on October 28, 2022.
TMW = temporary monitoring well; ft = feet
Table 2 (Page 1 of 1)
https://harthick.sharepoi nt.com/sites/MasterFi les-1/Shared Documents/AAA-Master Projects/White Point Partners (WPP)/WPP-015 Yancey Road/Brownfields/Brownfields Assessment/Tables/Data Tables pp &
11/30/2022 Hart Hickman, Pl./�'

Table 4
Summary of Sub -Slab Vapor and Soil Gas Analytical Results
Admiration Hosiery Mill
Yancey Road, S. Tryon Street, and E. Peterson Drive
Charlotte, North Carolina
Brownfields Project #26012-22-060
Evaluation Area
Footprint of Proposed Apartment Building
Screening Criteria
Sample ID
SG-1
SG-2
SG-3
SG-4
SG-5
SG-6
SG-7
SG-8
SG-9
SG-10
SG-11/SG-DUP
Sample Date
11/1/2022
11/1/2022
11/1/2022
11/1/2022
11/1/2022
11/2/2022
11/1/2022
11/1/2022
11/2/2022
11/1/2022
11/1/2022 11/1/2022
Residential
SGSLs j'I
Non -Residential
SGSLs I'I
Sample Type
Exterior Soil Gas
Units
pg/m3
VOCs (TO-15)
Acetone
11.2
14.0
10.4
14.7
12.0
28.7
43.5
8.47
14.5
5.04
11.4
7.80
NE
NE
Benzene
9.01
5.58
12.8
14.8
27.3
7.87
42.9
26.5
1.31 J
29.0
30.3
27.7
12
160
Bromodichloromethane
<0.150
<0.150
<0.150
<0.150
<0.150
0.811 J
<0.150
<0.150
<0.150
<0.150
<0.150
<0.150
2.5
33
Bromomethane
<0.115
<0.115
<0.115
<0.115
<0.115
<0.115
0.423 J
<0.115
<0.115
<0.115
<0.115
<0.115
35
440
1,3-Butadiene
<0.328
13.2
3.18
2.22
3.87
2.34
23.3
<0.328
<0.328
<0.328
0.436 J
<0.328
3.1
41
2-Butanone (MEK)
1.47
2.20
1.93
16.7
2.25
5.37
11.2
1.29 J
2.13
0.832 J
1.71
0.938 J
35,000
440,000
Carbon Disulfide
41.3
70.8
136
108
103
24.1
400
143
3.27 J
140
143
137
4,900
61,000
Carbon Tetrachloride
<0.155
<0.155
1.05 J
<0.155
0.786 J
<0.155
<0.155
<0.155
0.528 J
0.956 J
<0.155
0.931 J
16
200
Chlorobenzene
<0.107
2.79
<0.107
<0.107
<0.107
1.40 J
<0.107
<0.107
<0.107
<0.107
1.39 J
<0.107
350
4,400
Chloroform
1.91 J
<0.0864
58.8
21.9
18.8
0.723 J
26.6
16.8
0.410 J
36.0
1.53 J
35.3
4.1
53
Chloromethane
2.38
<0.0673
<0.0673
<0.0673
<0.0673
0.756 J
<0.0673
<0.0673
<0.0673
<0.0673
<0.0673
<0.0673
630
7,900
Cyclohexane
3.79
9.61
6.97
<0.161
9.07
25.3
20.4
6.44
13.2
<0.161
4.94
<0.161
42,000
530,000
1,4-Dichlorobenzene
<0.186
<0.186
<0.186
<0.186
<0.186
<0.186
<0.186
0.703 J
<0.186
0.986 J
0.896 J
<0.186
8.5
110
Dichlorodifluoromethane
2.45 J
3.21
2.53
2.25 J
2.40 J
<0.134
2.21 J
2.35 J
2.31 J
2.36 J
2.32 J
2.40 J
700
8,800
1,4-Dioxane
<0.435
<0.435
<0.435
<0.435
<0.435
<0.435
<0.435
<0.435
<0.435
<0.435
<0.435
<0.435
19
250
Ethyl acetate
0.782 J
<0.136
<0.136
<0.136
<0.136
1.27 J
<0.136
0.944 J
1.26 J
0.847 J
1.14 J
<0.136
490
6100
Ethylbenzene
40.9
6.08
48.1
27.7
68.1
6.92
70.9
69.7
0.695 J
98.9
88.5
98.6
37
490
4-Ethyltoluene
<0.128
0.826 J
15.2
5.24
22.8
0.664 J
15.0
14.5
<0.128
25.6
21.4
26.1
NE
NE
n-Heptane
20.0
66.4
132
503
326
71.3
1,010
55.3
1.02 J
297
102
295
2,800
35,000
n-Hexane
1.67 J
15.2
6.76
21.0
11.7
10.3
77.1
2.86
0.969 J
18.5
2.51
17.7
4,900
61,000
2-Hexanone
<0.285
<0.285
<0.285
<0.285
<0.285
<0.285
<0.285
<0.285
<0.285
<0.285
<0.285
<0.285
210
2,600
Isopropyl Alcohol
1.15 JB
1.08 B1,J
0.895 B1,J
3.73 J
1.47 JB
3.37 J
0.922 JB
0.639 JB
2.51 JB
0.949 JB
1.05 JB
0.850 JB
1,400
18,000
Methyl-tert-butyl ether (MTBE)
0.681 J
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
360
4,700
Methylene Chloride
2.33
1.39 J
2.27
1.89
1.28 J
1.34 J
1.85
0.813 J
0.907 J
1.21 J
1.39 J
2.00
3,400
54,000
4-Methyl-2-pentanone (MIBK)
<0.121
<0.121
<0.121
<0.121
<0.121
<0.121
<0.121
<0.121
<0.121
<0.121
<0.121
<0.121
21,000
260,000
Naphthalene
<0.183
<0.183
<0.183
<0.183
0.493 J
<0.183
0.786 J
<0.183
<0.183
0.540 J
0.487 J
<0.183
2.8
36
Propylene
<0.242
527
6.34
22.9
10.4
69.5
263
3.10
<0.242
5.88
2.37
5.72
21,000
260,000
Styrene
<0.124
<0.124
<0.124
0.388 J
0.426 J
<0.124
1.61 J
<0.124
<0.124
<0.124
<0.124
<0.124
7,000
88,000
Tetrachloroethene
2.87 J
119
3.30 J
2.43 J
3.16 J
1.81 J
3.74
5.47
1.11 J
5.17
4.90
5.91
280
3,500
Tetrahydrofuran
<0.107
<0.107
1.54
2.66
2.82
<0.107
1.94
1.26 J
<0.107
2.61
3.23
2.51
14,000
180,000
Toluene
251
49.5
234
213
430
37.7
531
427
9.47
657
572
658
35,000
440,000
Trichloroethene
<0.199
4.97
<0.199
<0.199
<0.199
<0.199
<0.199
<0.199
<0.199
<0.199
<0.199
<0.199
14
180
Trichlorofluoromethane
1.45 J
<0.130
1.94 J
1.45 J
1.52 J
1.36 J
1.53 J
1.44 J
1.27 J
1.58 J
2.44 J
1.72 J
NE
NE
1,1,2-Trichloro-1,2,2-trifluoroethane
<0.561
<0.561
0.667 J
<0.561
<0.561
<0.561
<0.561
<0.561
<0.561
<0.561
<0.561
<0.561
35,000
440,000
1,2,4-Trimethylbenzene
11.3
1.24 J
40.8
14.0
65.1
2.07 J
38.5
44.2
0.433 J
82.6
62.3
84.1
420
5,300
1,3,5-Trimethylbenzene
7.23
0.418 J
11.7
5.20
18.0
0.600 J
12.6
7.26
<0.236
25.5
18.3
25.9
420
5,300
Vinyl acetate
<0.224
17.5
<0.224
<0.224
<0.224
<0.224
<0.224
<0.224
<0.224
<0.224
<0.224
<0.224
1,400
18,000
o-Xylene
62.8
9.68
55.1
28.4
77.1
6.27
66.4
73.0
0.777 J
106
103
105
700
8,800
m&p-Xylene
109
20.3
148
80.7
210
19.1
213
181
<0.217
299
272
301
700
8,800
Xylene (total)
172
30.0
203
109
287
25.4
279
254
0.777 J
405
375
406
700
8,800
Notes:
1) North Carolina Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Vapor Intrusion Sub -Slab & Exterior Soil Gas Screening Levels (SGSLs) dated July 2022.
Concentrations are reported in micrograms per cubic meter (pg/m3).
Compound concentrations are reported to the laboratory method detection limits (MDLs).
Laboratory analytical method is shown in parentheses.
Only compounds detected in at least one sample are shown in the above table.
Bold values exceed the DWM Residential Vapor Intrusion SGSL.
Underlined values exceed the DWM Non -Residential SGSL.
VOCs = volatile organic compounds; NE = not established
B = Analyte detected in blank.
J = Estimated concentration that is above the laboratory MDL but below the laboratory reporting limit
httPs:Hharthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/White Point Partners (WPP)/WPP-015 Yancey Road/Brownfields/Brownfields Assessment/Tables/Data Tables Table 4 (Page 1 of 2)
11/30/2022 Hart & Hickman, PC

Table 4
Summary of Sub -Slab Vapor and Soil Gas Analytical Results
Admiration Hosiery Mill
Yancey Road, S. Tryon Street, and E. Peterson Drive
Charlotte, North Carolina
Brownfields Project #26012-22-060
Evaluation Area
Former OMB Administrative Offices/Warehouse
Screening Criteria
Sample ID
SSV-1
SSV-2
SSV-3
SSV-4
SSV-5
SSV-6
SSV-7 / SSV-DUP
SSV-8
SSV-9
SSV-10
SSV-11
SSV-12
SSV-13
Sample Date
12/6/2021
12/6/2021
12/6/2021
12/6/2021
12/6/2021
12/6/2021
11/10/2022 1 11/10/2022
11/10/2022
11/10/2022
11/10/2022
11/10/2022
11/10/2022
11/10/2022
Residential
SGSLs i'j
Non -Residential
SGSLs
Sample Type
Sub -Slab Soil Vapor
Units
Ng/m3
VOCs (TO-15)
Acetone
11.6
253
17.5
146
37.2
52.2
18.9
19.1
454
23.8
14.7
63.1
280
47.2
NE
NE
Benzene
0.671 J
7.92
0.319 J
0.508 J
0.422 J
0.482 J
0.399 J
<0.0733
0.310 J
0.457 J
0.339 J
0.326 J
0.364 J
0.409 J
12
160
Bromodichloromethane
<0.150
<0.150
<0.150
<0.150
<0.150
<0.150
<0.150
<0.150
<0.150
<0.150
<0.150
<0.150
<0.150
<0.150
2.5
33
Bromomethane
<0.115
<0.115
<0.115
<0.115
<0.115
<0.115
<0.115
<0.115
<0.115
<0.115
<0.115
<0.115
<0.115
<0.115
35
440
1,3-Butadiene
<0.328
16.2
<0.328
<0.328
<0.328
<0.328
<0.328
<0.328
<0.328
<0.328
<0.328
<0.328
<0.328
<0.328
3.1
41
2-Butanone (MEK)
2.24
73.4
2.87
5.41
3.44
3.22
1.83
1.90
13.1
2.28
1.34 J
2.56
4.11
2.13
35,000
440,000
Carbon Disulfide
3.90 J
19.1
2.34 J
5.03 J
2.83 J
7.68
1.83 JB
1.87 JB
5.70 J
17.3
3.80 JB
2.06 JB
1.68 JB
8.87
4,900
61,000
Carbon Tetrachloride
<0.155
<0.155
<0.155
<0.155
<0.155
<0.155
<0.155
<0.155
<0.155
<0.155
<0.155
<0.155
<0.155
<0.155
16
200
Chlorobenzene
<0.107
<0.107
<0.107
<0.107
<0.107
<0.107
<0.107
<0.107
<0.107
<0.107
<0.107
<0.107
<0.107
<0.107
350
4,400
Chloroform
<0.0864
<0.0864
<0.0864
0.810 J
1.87 J
0.625 J
<0.0864
<0.0864
<0.0864
<0.0864
<0.0864
<0.0864
2.64
<0.0864
4.1
53
Chloromethane
<0.0673
<0.0673
<0.0673
<0.0673
<0.0673
<0.0673
<0.0673
<0.0673
<0.0673
<0.0673
<0.0673
<0.0673
<0.0673
<0.0673
630
7,900
Cyclohexane
<0.161
39.4
<0.161
7.48
5.49
5.01
<0.161
<0.161
3.71
<0.161
<0.161
<0.161
<0.161
<0.161
42,000
530,000
1,4-Dichlorobenzene
<0.186
<0.186
<0.186
<0.186
<0.186
<0.186
<0.186
<0.186
<0.186
<0.186
<0.186
<0.186
<0.186
<0.186
8.5
110
Dichlorodifluoromethane
2.84
2.07 J
2.95
2.86
<0.134
2.76
2.50
2.45 J
2.39 J
2.60
2.38 J
2.39 J
2.36 J
2.34 J
700
8,800
1,4-Dioxane
<0.435
<0.435
<0.435
<0.435
<0.435
<0.435
<0.435
<0.435
<0.435
<0.435
<0.435
<0.435
1.82
<0.435
19
250
Ethyl acetate
<0.136
<0.136
1.07 J
1.49 J
0.814 J
17.6
<0.136
<0.136
<0.136
<0.136
<0.136
<0.136
0.587 J
<0.136
490
6100
Ethylbenzene
<0.106
0.851 J
<0.106
2.24
1.75 J
0.695 J
<0.106
<0.106
<0.106
<0.106
<0.106
<0.106
<0.106
0.412 J
37
490
4-Ethyltoluene
<0.128
<0.128
<0.128
1.31 J
0.841 J
<0.128
<0.128
<0.128
0.914 J
<0.128
<0.128
<0.128
<0.128
<0.128
NE
NE
n-Heptane
<0.143
106
<0.143
1.73 J
<0.143
0.402 J
0.484 J
<0.143
<0.143
<0.143
<0.143
<0.143
<0.143
<0.143
2,800
35,000
n-Hexane
0.314 J
87.9
0.426 J
0.476 J
0.444 J
<0.0472
0.723 J
0.789 J
0.508 J
0.574 J
0.539 J
0.462 J
0.458 J
0.483 J
4,900
61,000
2-Hexanone
0.385 J
<0.285
0.414 J
<0.285
0.426 J
<0.285
0.414 J
0.487 J
1.12 J
0.696 J
<0.285
<0.285
<0.285
<0.285
210
2,600
Isopropyl Alcohol
3.24 J
62.2
3.24 J
7.43
3.93 J
8.07
3.66 JB
3.52 JB
199
4.94
2.55 JB
3.84 JB
16.0
4.54 J
1,400
18,000
Methyl-tert-butyl ether (MTBE)
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
<0.0336
360
4,700
Methylene Chloride
1.81
2.62
2.32
2.64
1.76
2.50
7.53
21.7
42.8
54.2
58.0
60.4
50.1
40.9
3,400
54,000
4-Methyl-2-pentanone (MIBK)
<0.121
<0.121
0.700 J
0.844 J
0.397 J
1.12 J
0.877 J
0.905 J
1.71 J
0.586 J
<0.121
0.496 J
1.47 J
0.434 J
21,000
260,000
Naphthalene
1.08 J
0.708 J
0.446 J
0.729 J
0.482 J
0.550 J
0.812 J
0.917 J
0.671 J
0.519 J
0.566 J
0.461 J
0.482 J
0.571 J
2.8
36
Propylene
2.51
77.2
<0.242
<0.242
<0.242
<0.242
<0.242
<0.242
<0.242
<0.242
<0.242
<0.242
<0.242
<0.242
21,000
260,000
Styrene
<0.124
0.409 J
<0.124
0.392 J
<0.124
0.349 J
<0.124
<0.124
<0.124
<0.124
<0.124
<0.124
<0.124
<0.124
7,000
88,000
Tetrachloroethene
2.87 J
1.78 J
14.2
1.05 J
3.85
5.93
2.72 J
2.82 J
0.868 J
<0.181
1.69 J
1.68 J
<0.181
8.11
280
3,500
Tetrahydrofuran
<0.107
2.90
2.17
0.655 J
<0.107
3.85
1.85
1.93
0.840 J
<0.107
0.658 J
0.383 J
0.587 J
0.239 J
14,000
180,000
Toluene
0.976 J
6.70
1.06 J
7.15
5.90
2.14
0.667 J
0.550 J
1.16 J
1.13 J
0.573 J
1.17 J
1.07 J
1.15 J
35,000
440,000
Trichloroethene
<0.199
<0.199
<0.199
<0.199
<0.199
<0.199
<0.199
<0.199
<0.199
<0.199
<0.199
<0.199
<0.199
<0.199
14
180
Trichlorofluoromethane
2.54 J
<0.130
1.75 J
1.76 J
1.57 J
1.83 J
1.52 J
1.48 J
1.62 J
1.84 J
1.30 J
1.61 J
1.40 J
1.40 J
NE
NE
1,1,2-Trichloro-1,2,2-trifluoroethane
<0.561
<0.561
<0.561
<0.561
1.32 J
<0.561
<0.561
<0.561
<0.561
<0.561
<0.561
<0.561
<0.561
<0.561
35,000
440,000
1,2,4-Trimethylbenzene
0.531 J
1.81 J
<0.110
5.51
3.21
0.880 J
1.50 J
0.890 J
22.6
0.796 J
0.762 J
0.919 J
0.939 J
1.40 J
420
5,300
1,3,5-Trimethylbenzene
<0.236
0.890 J
<0.236
1.15 J
0.614 J
<0.236
0.447 J
<0.236
8.43
<0.236
<0.236
<0.236
<0.236
<0.236
420
5,300
Vinyl acetate
<0.224
<0.224
<0.224
<0.224
<0.224
<0.224
<0.224
<0.224
<0.224
<0.224
<0.224
<0.224
<0.224
<0.224
1,400
18,000
o-Xylene
<0.157
1.43 J
0.378 J
5.06
3.55
1.71 J
0.412 J
<0.157
0.630 J
0.439 J
<0.157
0.369 J
1.14 J
1.20 J
700
8,800
m&p-Xylene
0.634 J
3.47 J
0.829 J
10.1
7.06
3.05 J
<0.217
<0.217
<0.217
<0.217
<0.217
<0.217
<0.217
<0.217
700
8,800
Xylene (total)
0.634 J
4.90 J
1.21 J
15.2
10.6
4.76 J
0.412 J
<0.157
0.630 J
0.439 J
<0.157
0.369 J
1.14 J
1.20 J
700
8,800
Notes:
1) North Carolina Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Vapor Intrusion Sub -Slab & Exterior Soil Gas Screening Levels (SGSLs) dated July 2022.
Concentrations are reported in micrograms per cubic meter (pg/m3).
Compound concentrations are reported to the laboratory method detection limits (MDLs).
Laboratory analytical method is shown in parentheses.
Only compounds detected in at least one sample are shown in the above table.
Bold values exceed the DWM Residential Vapor Intrusion SGSL.
Underlined values exceed the DWM Non -Residential SGSL.
VOCs = volatile organic compounds; NE = not established
B = Analyte detected in blank.
J = Estimated concentration that is above the laboratory MDL but below the laboratory reporting limit
httPs:Hharthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/White Point Partners (WPP)/WPP-015 Yancey Road/Brownfields/Brownfields Assessment/Tables/Data Tables Table 4 (Page 2 of 2)
11/30/2022 Hart & Hickman, PC

Attachment B
Vapor Intrusion Mitigation Design Drawings
Sheets VM-0, VM-1, VM-1-1, VM-1-2, VM-1-3, VM-1-4, VM-2, VM-3, VM-A, VM-B and
VM-C (dated August 31, 2023)
do
hart hickman
WAOJ EREWROHME"TAaSOLUMUS

VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
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hart hickman
LEGEND
THICKENED SLAB
SMARTER ENVIRONMENTAL SOLUTIONS
OUTDOOR OR OPEN AIR SPACE
2923 South Tryon Street -Suite 100
Charlotte, North Carolina28203
704-586-0007(p) 704-586-0373(f
License # C-1269 / #C-245 Geology
— - -
EXTENT OF VAPOR BARRIER
.................
HORIZONTAL COLLECTION PIPING
DEVELOPER:
3" DIA SCH 40 SOLID PVC PIPE WHITE POINT
R-1 ® 3" DIA SCH 40 SOLID PVC VERTICAL RISER PARTNERS AND
MP-1 2" DIA SOLID PVC MONITORING POINT MADISON CAPITAL
H&H NO. WPP-015
1. REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-A, VM-B, AND VM-C. 0
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SPECIFICATIONS #3A& #7. PVC TERMINATION SCREEN, OR OPEN PIPE, PER N
Q N
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`011u1►1iii
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HART &
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DATE: 08-31-23 1
VAPOR INTRUSION
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LEVEL 131
APPROXIMATE
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2923 South Tryon Street -Suite 100
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2. STANDARD SLIP JOINT OR SOLVENT WELDED SCH 40 PVC FITTINGS SHALL BE
USED ON HORIZONTAL COLLECTION PIPE.
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4. THE INTAKE OF THE MONITORING POINTS SHALL BE A MINIMUM 5 FT FROM
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PROFESSIONAL
APPROVAL
111/I//I
HART &
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No. C-1269 A
--Ifl't OFIIAU,`````�
DATE: 08-31-23 1
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 1

LEGEND VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
L - THICKENED SLAB
OUTDOOR OR OPEN AIR SPACE
hart p- hickman
— - - - EXTENT OF VAPOR BARRIER
SMARTER ENVIRONMENTAL SOLUTIONS
■■■■■■■■■■■■■■■■. HORIZONTAL COLLECTION PIPING 2923 South Tryon Street -Suite 100
Charlotte, North Carolina 28203
3" DIA SCH 40 SOLID PVC PIPE 704-586-0007(p) 704-586-0373(f
License # C-1269 / #C-245 Geology
R-1 ® 3" DIA SCH 40 SOLID PVC VERTICAL RISER
MP-1 2" DIA SOLID PVC MONITORING POINT DEVELOPER:
NOTES: WHITE POINT
PARTNERS AND
1. REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-A, VM-B, AND VM-C. MADISON CAPITAL
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 TERMINATION SCREEN, OR OPEN PIPE, PER H&H NO. WPP-015
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4. THE INTAKE OF THE MONITORING POINTS SHALL BE A MINIMUM 5 FT FROM
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SPECIFICATIONS #3 & #7.
4. THE INTAKE OF THE MONITORING POINTS SHALL BE A MINIMUM 5 FT FROM H&H NO. WPP-015
EXTERIOR WALLS OR FOOTINGS, OR AS OTHERWISE APPROVED.
5. NOT ALL FOOTERS MAY BE SHOWN. REFER TO STRUCTURAL PLANS FOR FINAL O
FOOTER LOCATIONS.
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ROOF HATCH
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
ROOF PLAN
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VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
VAPOR INTRUSION MITIGATION SYSTEM (VIMS)_
SPECIFICATIONS
1. THIS VAPOR MITIGATION PLAN IS INTENDED TO BE USED FOR DIRECTION OF VIMS COMPONENT
INSTALLATION ONLY AND IS NOT INTENDED TO GUIDE CONSTRUCTION OF BUILDING
STRUCTURAL COMPONENTS. CONSTRUCTION CONTRACTOR SHALL VERIFY CONSISTENCY OF
VIMS DETAILS WITH APPLICABLE STRUCTURAL, ARCHITECTURAL, MECHANICAL, & PLUMBING
PLANS AND RESOLVE ANY INCONSISTENCIES PRIOR TO VIMS INSTALLATION. OBTAINING
COUNTY OR LOCAL JURISDICTIONAL BUILDING PERMITS RELATED TO THE VIMS SHALL BE THE
RESPONSIBILITY OF THE GENERAL CONTRACTOR (GC).
2. VIMS VAPOR BARRIER (LINER) SHALL BE VAPORBLOCK PLUS 20 (VBP20) 20-MIL VAPOR BARRIER
MANUFACTURED BY RAVEN INDUSTRIES (RAVEN) OR DRAGO-WRAP 20-MIL VAPOR INTRUSION
BARRIER MANUFACTURED BY STEGO. OTHER VAPOR BARRIERS MAY BE ABLE TO BE USED,
PENDING APPROVAL BY THE VIMS DESIGN ENGINEER.
THE VAPOR BARRIER SHALL BE INSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER
INSTALLATION INSTRUCTIONS TO CREATE A CONTINUOUS BARRIER BELOW MITIGATED AREAS,
AND ALONG RETAINING WALLS AND SLAB -ON -GRADE FOLDS WITHIN THE EXTENT OF VAPOR
BARRIER BOUNDARY. A MINIMUM 4-INCH THICK BASE COURSE CONSISTING OF CLEAN #57
STONE (WASHED WITH NO FINES) SHALL BE INSTALLED BENEATH THE VIMS VAPOR BARRIER. A
SIMILAR HIGH PERMEABILITY STONE MAY BE USED, PENDING APPROVAL BY THE ENGINEER.
2.1. THE VAPOR BARRIER SHALL BE PROPERLY SEALED IN ACCORDANCE WITH THE
MANUFACTURER INSTALLATION INSTRUCTIONS AS SPECIFIED IN THESE DRAWINGS TO
FOOTERS, SLAB STEPS, RETAINING WALLS, PENETRATIONS (SUCH AS PIPE PENETRATIONS),
OR OTHER BUILDING COMPONENTS WITHIN THE VIMS EXTENTS.
2.2. VAPOR BARRIER SHALL BE INSTALLED UNDER SLABS, ON WALLS, AND ALONG OTHER
STRUCTURAL COMPONENTS WHICH COME IN CONTACT WITH BOTH AN OCCUPIABLE
ENCLOSED SPACE AND SOIL. NOT ALL AREAS FOR THE VAPOR BARRIER MAY BE DEPICTED
ON THE DRAWINGS. THE GENERAL CONTRACTOR SHALL VERIFY ALL REQUIRED LOCATIONS
FOR VAPOR BARRIER ALONG VERTICAL WALLS PRIOR TO CONSTRUCTION.
2.3. ALL CONCRETE BOX -OUTS, INCLUDING BUT NOT LIMITED TO SHOWER/BATH TUB DRAINS,
SHALL HAVE A CONTINUOUS VAPOR BARRIER INSTALLED BELOW.
2.4. VAPOR BARRIER SHALL EXTEND ALONG FOOTING EXTERIOR, IF POSSIBLE, AT LOCATIONS
WHERE EXTERIOR GRADE IS HIGHER THAN INTERIOR GRADE.
2.5. IN AREAS WITH EXPANSION BOARDS (E.G. ALONG COLUMNS), THE VAPOR BARRIER MUST
BE SEALED DIRECTLY TO THE CONCRETE WITH THE EXPANSION BOARD BE INSTALLED OVER
THE VAPOR BARRIER.
2.6. THE INTERFACE OF THE STEEL COLUMNS (IF PRESENT) AND THE CONCRETE SLAB SHALL BE
SEALED WITH A SELF -LEVELING POLYURETHANE SEALANT PER DIRECTION OF THE
ENGINEER OR ENGINEER'S DESIGNEE. SIMILAR SEALANT PRODUCTS MAY BE APPROVED
BY THE ENGINEER.
2.7. IF PLUMBER CONTRACTORS OR OTHER SUBCONTRACTORS DAMAGE, REMOVE, OR MODIFY
CONCRETE AND/OR VAPOR BARRIER AFTER INSTALLATION, THEN REPAIRS TO THESE AREAS
MUST BE CONDUCTED IN ACCORDANCE WITH MANUFACTURER INSTRUCTIONS AND THE
VAPOR BARRIER REPAIRS MUST BE INSPECTED PRIOR TO CONCRETE COMPLETION.
3. SUB -SLAB SLOTTED VAPOR COLLECTION PIPE SHALL BE SOCKET -WELD 3" SCH 40 PVC PIPE WITH
0.020" TO 0.060" SLOT WIDTH AND 1/8" SLOT SPACING. AN ALTERNATE SLOT PATTERN, OR SCH
40 PVC PERFORATED PIPE WITH 5/8" OR SMALLER DIAMETER PERFORATIONS, OR SOIL GAS
COLLECTOR MAT (1 X 12I), WITH SIMILAR AIR FLOW CHARACTERISTICS TO THE SLOTTED PIPE
MAY BE USED PENDING APPROVAL BY THE DESIGN ENGINEER. IF CIRCULAR PIPE IS USED, A PVC
TERMINATION SCREEN (WALRICH CORPORATION #2202052, OR SIMILAR) SHOULD BE
INSTALLED ON THE END OF PIPE.
3.1. SLOTTED COLLECTION PIPING SHALL BE SET WITHIN THE MINIMUM 4" BASE COURSE
LAYER, WITH APPROXIMATELY 1" OF BASE COURSE MATERIAL BELOW THE PIPING.
3.2. SOIL GAS COLLECTOR MAT (IF INSTALLED) SHALL NOT BE USED THROUGH A CONCRETE
FOOTING. SCH 40 PVC PIPE (3" DIA) SHALL BE USED FOR ALL SUB -SLAB VENT PIPE
CROSSINGS THROUGH FOOTINGS. IF SOIL GAS COLLECTOR MAT IS USED, MANUFACTURER
APPROVED FITTINGS SHALL BE UTILIZED TO CONNECT THE SOIL GAS COLLECTOR MAT TO
PVC PIPING FOR CROSSINGS THROUGH FOOTINGS.
4. 3" SCH 40 PVC RISER DUCT PIPING SHALL BE INSTALLED TO CONNECT EACH SLAB PENETRATION
LOCATION TO A ROOFTOP EXHAUST DISCHARGE POINT WITH STATIONARY VENTILATOR (SEE
SPECIFICATION #5). ABOVE -SLAB RISER DUCT PIPE THAT RUNS BETWEEN THE SLAB
PENETRATION AND THE ROOFTOP EXHAUST DISCHARGE SHALL BE INSTALLED PER APPLICABLE
BUILDING CODE AND AS SPECIFIED IN THE CONSTRUCTION DOCUMENTS AND DRAWINGS.
4.1. VERTICAL RISER PIPING SHALL BE CONNECTED WITH PVC PRIMER AND GLUE.
4.2. VERTICAL RISER PIPING MUST BE INSTALLED PER 2018 NORTH CAROLINA STATE PLUMBING
CODE.
4.3. VIMS BELOW AND ABOVE GRADE SOLID PIPING SHALL NOT BE TRAPPED AND SHALL BE
SLOPED A MINIMUM OF 1/8 UNIT VERTICAL BY 12 UNITS HORIZONTAL (1% SLOPE) TO
GRAVITY DRAIN. BENDS, TURNS, AND ELBOWS IN VERTICAL RISER PIPES SHALL BE
MINIMIZED FROM THE SLAB TO THE ROOFTOP.
5. THE RISER DUCT PIPING SHALL EXTEND IN A VERTICAL ORIENTATION THROUGH THE BUILDING
ROOF AND TERMINATE A MINIMUM OF 2 FT ABOVE THE BUILDING ROOF LINE. EMPIRE MODEL
TV04SS VENTILATOR (OR ALTERNATE APPROVED BY DESIGN ENGINEER) SHALL BE INSTALLED ON
THE EXHAUST DISCHARGE END OF EACH RISER DUCT PIPE. THE RISER DUCT PIPE AND THE
VENTILATOR SHALL BE SECURED TO THE PVC RISER IN A VERTICAL ORIENTATION.
5.1. EXHAUST DISCHARGE LOCATIONS SHALL BE A MINIMUM OF 10 FT FROM ANY OPERABLE
OPENING OR AIR INTAKE INTO THE BUILDING. NOTE THAT DISCHARGE LOCATIONS ON THE
ROOFTOP DEPICTED IN THE VAPOR MITIGATION PLAN MAY BE REPOSITIONED AS LONG AS
THE NEW POSITION MEETS THE REQUIREMENTS PRESENTED ABOVE, PENDING ENGINEER
APPROVAL.
5.2. AN ELECTRICAL JUNCTION BOX (120VAC REQUIRED) FOR OUTDOOR USE SHALL BE
INSTALLED NEAR THE PIPE DISCHARGE LOCATION ON THE ROOFTOP FOR POTENTIAL
FUTURE CONVERSION TO ELECTRIC FANS, IF REQUIRED. ALL WIRING AND ELECTRICAL
SHALL BE INSTALLED PER APPLICABLE BUILDING AND ELECTRICAL CODES.
6. ABOVE -SLAB ACCESSIBLE RISER DUCT PIPING SHALL BE PERMANENTLY IDENTIFIED BY MEANS OF
A TAG OR STENCIL AT A MINIMUM OF ONCE EVERY 10-LINEAR FT WITH "VAPOR MITIGATION:
CONTACT MAINTENANCE". LABELS SHALL ALSO BE FIXED NEAR THE VENTILATORS IN AN
ACCESSIBLE LOCATION ON THE ROOFTOP.
7. MONITORING POINTS SHALL CONSIST OF 2-INCH DIAMETER SCH 40 PVC PIPE WITH A
90-DEGREE ELBOW TO FORM AN "L" SHAPE. A MINIMUM OF 6" SECTION OF PIPE AND
MAXIMUM 6 FT SECTION OF PIPE, OR OTHERWISE APPROVED BY THE DESIGN ENGINEER, SHALL
BE SET WITHIN THE BASE COURSE LAYER WITH AN OPEN ENDED PIPE OR PIPE PROTECTION
SCREEN AT THE TERMINATION. THE PIPE TERMINATION SHALL BE 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
FOOTERS, OR AS OTHERWISE APPROVED BY THE DESIGN ENGINEER.
7.3. MONITORING POINTS LOCATED IN STAIRWELLS ARE INTENDED TO BE INSTALLED BELOW
STAIRWELL LANDINGS AND MAY BE RE -POSITIONED TO PROVIDE SUITABLE ACCESS TO THE
POINT PER APPROVAL OF THE DESIGN ENGINEER.
7.4. THE END OF THE PIPE SHALL CONTAIN AN OPEN ENDED PIPE OR A TERMINATION SCREEN
MAY BE USED PER APPROVAL OF THE DESIGN ENGINEER.
7.5. A 4-INCH DIAMETER ADJUSTABLE FLOOR CLEAN -OUT (ZURN INDUSTRIES MODEL
#CO2450-PV4, OR EQUIVALENT) SHALL BE INSTALLED AND SET FLUSH WITH THE FINISHED
CONCRETE SURFACE.
7.6. WALL -MOUNTED MONITORING POINTS SHALL BE INSTALLED BEHIND A 12"X12"
FIRE -RATED WALL ACCESS PANEL (ACUDOR FB-5060, WILLIAMS BROTHERS WB-FR-800, OR
SIMILAR) TO MEET THE FIRE RATING OF THE WALL.
8. CONSTRUCTION CONTRACTORS AND SUB -CONTRACTORS SHALL USE "LOW OR NO VOC"
PRODUCTS AND MATERIALS, WHEN POSSIBLE, AND SHALL NOT USE PRODUCTS CONTAINING
THE COMPOUNDS TETRACHLOROETHENE (PCE) OR TRICHLOROETHENE (TCE). THE
CONSTRUCTION CONTRACTOR AND SUB -CONTRACTORS SHALL PROVIDE SAFETY DATA SHEETS
(SDS) TO THE ENGINEER FOR THE PRODUCTS AND MATERIALS USED FOR CONSTRUCTION OF
THE VIMS.
9. IN INSTANCES WHERE A THICKENED FOOTING OR RETAINING WALL IS NOT SPECIFIED AT THE
EXTENT OF VAPOR BARRIER, A THICKENED SLAB OR FOOTER SHALL BE INSTALLED BY THE
CONTRACTOR THAT INCLUDES A SOIL SUBBASE TO CREATE A CUT-OFF FOOTER AT THE EXTENT
OF VAPOR BARRIER. THE ADDITIONAL THICKENED SLAB OR FOOTER SHALL NOT ALLOW FOR
CONTINUOUS GRAVEL BETWEEN THE VIMS EXTENTS AND EXTERIOR NON -MITIGATED AREAS.
10. CONSTRUCTION CONTRACTORS AND SUB -CONTRACTORS SHALL AVOID THE USE OF
TEMPORARY FORM BOARDS THAT PENETRATE THE VAPOR BARRIER WHERE POSSIBLE. IF
TEMPORARY FORM BOARDS ARE USED, THE SIZE AND NUMBER OF PENETRATIONS THROUGH
THE VAPOR BARRIER SHALL BE LIMITED AND SMALL DIAMETER SOLID STAKES (I.E. METAL
STAKES) SHALL BE USED. IN ALL CASES, AS FORM BOARDS ARE REMOVED, THE CONTRACTOR
OR SUB -CONTRACTORS SHALL RESEAL ALL PENETRATIONS IN ACCORDANCE WITH VAPOR
BARRIER MANUFACTURER INSTALLATION INSTRUCTIONS.
10.1. HOLLOW FORMS OR CONDUITS THAT CONNECT THE SUB -SLAB ANNULAR SPACE TO
ENCLOSED ABOVE SLAB SPACES SHALL NOT BE PERMITTED.
10.2. AREAS OF UTILITY BANKS (e.g. LOCATION OF THREE OR MORE ADJACENT UTILITIES
THROUGH THE SLAB) SHALL BE SEALED TO CREATE AN AIR -TIGHT BARRIER AROUND THE
UTILITY CONDUITS USING RAVEN POUR N'SEAL OR DRAGO SEALANT PRIOR TO THE SLAB
POUR. OTHER SEALANT METHODS IF USED SHALL BE APPROVED BY THE DESIGN ENGINEER
PRIOR TO APPLICATION.
11. INSPECTIONS: THE INSTALLATION CONTRACTOR(S) SHALL NOT COVER ANY PORTIONS OF THE
VIMS WITHOUT INSPECTION. INSPECTIONS OF EACH COMPONENT OF THE VIMS SHALL BE
CONDUCTED BY THE DESIGN ENGINEER, OR ENGINEER'S DESIGNEE, TO CONFIRM VIMS
COMPONENTS ARE INSTALLED PER THE APPROVED DESIGN. THE REQUIRED INSPECTION
COMPONENTS INCLUDE: (1) INSPECTION OF SUB -SLAB PIPING LAYOUT, (2) GRAVEL PLACEMENT,
AND (3) MONITORING POINT PLACEMENT PRIOR TO INSTALLING VAPOR BARRIER; (4)
INSPECTION OF VAPOR BARRIER PRIOR TO POURING CONCRETE; (5) INSPECTION OF
ABOVE -GRADE PIPING LAYOUT; (6) INSPECTION OF VENTILATOR AND RISER DUCT PIPE
CONNECTIONS; AND (7) INSPECTION OF VAPOR BARRIER ALONG VERTICAL WALLS AND
ELEVATOR PITS. INSPECTIONS WILL BE COMBINED WHEN POSSIBLE DEPENDING ON THE
CONSTRUCTION SEQUENCE/SCHEDULE.
11.1. THE CONSTRUCTION CONTRACTOR(S) SHALL COORDINATE WITH THE ENGINEER TO
PERFORM THE REQUIRED INSPECTIONS.A MINIMUM 48-HOUR NOTICE SHALL BE GIVEN TO
THE ENGINEER OR DESIGNEE PRIOR TO THE REQUIRED INSPECTION(S) WITH SUBSEQUENT
NOTIFICATION PROVIDED TO DEQ. THE CONTRACTORS SHALL NOT COVER COMPONENTS
OF THE VIMS WITHOUT INSPECTION AND ENGINEER'S, OR ENGINEER'S DESIGNEE,
APPROVAL.
11.2. INSPECTIONS NOTED ABOVE ARE PERFORMED FOR DEQ PURPOSES. ANY BUILDING
INSPECTIONS REQUIRED FOR COUNTY OR LOCAL JURISDICTIONAL BUILDING PERMITS ARE
SEPARATE FROM THE DEQ INSPECTIONS AND ARE THE RESPONSIBILITY OF THE GC OR
INSTALLERS TO COORDINATE.
12. PIPE SLEEVES, IF USED, SHALL BE PROPERLY SEALED TO PREVENT A PREFERENTIAL AIR PATHWAY
FROM BELOW THE SLAB INTO THE BUILDING. REFER TO TO STRUCTURAL DRAWINGS FOR
FOOTING DETAILS ADDRESSING VIMS PIPING.
13. WATERPROOFING INCLUDING MEMBRANES AND DRAINAGE MATS SHALL BE INSTALLED IN
ACCORDANCE WITH THE ARCHITECTURAL AND STRUCTURAL PLANS. IF WATERPROOFING IS
PRESENT, THE VAPOR BARRIER SHALL BE INSTALLED BETWEEN WATERPROOFING AND ANY
DRAINAGE FEATURES INCLUDING DRAINAGE MATS THE INSTALLER SHALL CONFIRM THAT THE
WATERPROOFING PRODUCTS AND SEALANTS USED DURING CONSTRUCTION ARE COMPATIBLE
WITH THE SPECIFIED VAPOR BARRIER.
14. TO CONTROL HORIZONTAL GAS MIGRATION THROUGH UTILITY TRENCH BACKFILL ON THE
NORTHERN SIDE OF THE BUILDING, TRENCH DAMS SHALL BE INSTALLED ALONG UTILITY
TRENCHES ENTERING THE BUILDING FROM OUTSIDE THE BUILDING FOOTPRINT. THE TRENCH
DAMS SHALL BE INSTALLED IMMEDIATELY ADJACENT TO THE EXTERIOR PERIMETER OF THE
BUILDING FOUNDATION.
14.2. TRENCH DAMS SHALL BE AN IMPERVIOUS FILL OF LEAN CONCRETE, A BENTONITE CEMENT
SLURRY, SOIL AND CEMENT MIX, FLOWABLE FILL, OR SIMILAR.
14.3. TRENCH DAMS SHALL HAVE A MINIMUM LENGTH OF 3 FEET AND SHALL EXTEND A
MINIMUM OF 6 INCHES ABOVE THE TOP OF THE TRENCH BACKFILL ALONG THE EXTERIOR
OF THE BUILDING.
14.4. SILTY/CLAYEY SOILS MAY BE USED AS A TRENCH DAM WITH A MINIMUM LENGTH OF
5-FEET AND BE COMPACTED USING STANDARD COMPACTION METHODS.
14.5. CONDUIT PENETRATIONS WITHIN THE BUILDING FOOTPRINTS, INCLUDING ELECTRICAL
AND COMMUNICATION LINES, SHALL BE SEALED AT THE CONCRETE GRADE USING
SILICONE SEALANT AS NEEDED ALONG THE EXTERIOR CASING EXTENTS, AND SHALL BE
SEALED INSIDE THE CONDUIT, AS NEEDED, USING SEALING COMPOUND TO REDUCE THE
POTENTIAL FOR A PREFERENTIAL PATHWAY TO THE OCCUPIABLE SPACE.
10
hart hickman
SMARTER ENVIRONMENTAL SOLUTIONS
2923 South Tryon Street -Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(l)
License # C-1269 / #C-245 Geology
DEVELOPER:
WHITE POINT
PARTNERS AND
MADISON CAPITAL
H&H NO. WPP-015 1
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VAPOR INTRUSION
MITIGATION SYSTEM
SPECIFICATIONS
VM-A

CONCRETE FLOOR SLAB
VAPOR BARRIER (SEE SPECIFICATION #2)
--BASE COURSE - CLEAN # 57 STONE (WASHED
WITH NO FINES), MIN 4" THICK BENEATH VIMS
SUB -BASE VAPOR BARRIER (SEE SPECIFICATION #2)
VIMS VAPOR BARRIER AND BASE COURSE
NTS
CONCRETE FLOOR SLAB
PVC TERMINATION SCREEN
(SEE SPECIFICATION #3)�
SLOTTED COLLECTION PIPE
NTS
VAPOR BARRIER
VAPOR BARRIER
(SPECIFICATION #2)
3" SCH 40 THREADED FLUSH JOINT
SLOTTED PVC PIPE SET WITHIN MIN 4"
BASE COURSE (SEE SPECIFICATION #3)
SUB -BASE
WALL (VARIES)
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VAPOR BARRIER SEALED TO PIPE
SUB -BASE PER MANUFACTURER INSTRUCTIONS
PROVIDE PIPE SUPPORT TO PREVENT PIPE SLEEVE
LOW POINT IN SOLID PIPE. MAINTAIN 1 % (SEE SPECIFICATION #12)
SLOPE TOWARD SLOTTED SECTION OF
PIPE (SEE SPECIFICATION #3)
VIMS PIPING THROUGH INTERIOR THICKENED SLAB
NTS
WALL (VARIES)
I I
VAPOR BARRIER 1 PVC TERMINATION SCREEN (SEE SPECIFICATION #3)
I I SOLID 3"
SCH 40 PVC
3" SCH 40 PVC SLOTTED
PIPE, IF PRESENT - REFER
TO PLAN VIEW SHEETS
BASE COURSE
SOLID TO SLOTTED 3" SCH 40 -III—III
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT) -III—III VAPOR BARRIER SEALED TO PIPE
I111I=1 I I- PER MANUFACTURER INSTRUCTIONS
SUB -BASE
PROVIDE PIPE SUPPORT TO PREVENT
LOW POINT IN SOLID PIPE. MAINTAIN 1 % VAPOR BARRIER BENEATH FOOTER
SLOPE TOWARD SLOTTED SECTION OF
PIPE (SEE SPECIFICATION #3) PIPE SLEEVE
(SEE SPECIFICATION #12)
VIMS PIPING STUB CONNECTION THROUGH THICKENED SLAB
WALL (VARIE;
3" SCH 40 PVC
45-DEGREE ELBOW
MINIMUM 1 % SLOPE TOWARD
SLOTTED SECTIONS
SOLID TO SLOTTED 3" SCH 40
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT)
rCONCRETE FLOOR SLAB
SLOPE
VAPOR BARRIERITT VAPOR BARRIER SEALED TO
/ I I I III I I I PIPE PER MANUFACTURER
J/ s' INSTRUCTIONS
BASE COURSE
PIPE SLEEVE SUB -BASE SOLID 3" SCH 40 PVC
(SEE SPECIFICATION #12)
VIMS PIPING THROUGH DEPRESSIONS IN SLAB -ON -GRADE
NTS
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COLUMN 9LOCKOUT
SEE DETAIL 9NM-B
VAPOR BARRIER CONCRETE FLOOR SLAB
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SUB -BASE —I 11=111 1=1 I M
1=1 11 1 I 1=1 1= T.O.F.
VAPOR BARRIER SEALED OUTSIDE OF CONCRETE
COLUMN PER MANUFACTURER INSTRUCTIONS (e.g.
VIMS AT INTERIOR COLUMN RAVEN BUTYL -SEAL TAPE OR DRAGOTACK TAPE)
NTS
• v • ,
CIP CONCRETE COLUMN
VAPOR BARRIER SEALED TO
CONCRETE ON EACH SIDE OF « SEE DETAIL 9NM-B
COLUMN PER MANUFACTURERS
INSTRUCTIONS (e.g. RAVEN owMNaLocKouT
BUTYL -SEAL TAPE OR
DRAGOTACKTAPE) CONCRETE
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VIMS AT EXTERIOR COLUMN
NTS
VAPOR BARRIER
CIP CONCRETE COLUMN
COLUMN EXPANSION FORM
(INSTALLED OVER VAPOR BARRIER)
CONCRETE FLOOR SLAB
VAPOR BARRIER SEALED TO CONCRETE ,•
PER MANUFACTURERS INSTRUCTIONS
(e.g. RAVEN BUTYL -SEAL TAPE OR
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A
VIMS AT COLUMNS - EXPANSION DETAIL (TYP)
VAPOR BARRIER SEALED TO CONCRETE
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NTS
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WALL (VARIES)
FLOOR SLAB
CONCRETE FOOTING
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BASE COURSE
VAPOR BARRIER J I —III TERMINATE VAPOR BARRIER AT SOIL
GRADE, WHERE APPLICABLE
VAPOR BARRIER AT SLAB EDGE
NTS
v I
I I
WALL (VARIES)
OPEN-AIR
I
ENCLOSED
SPACE
I
I
INTERIOR
VAPOR RETARDER OR
I
I I
MOISTURE BARRIER, IF
I
WARRANTED, BY OTHERS
TERMINATE VAPOR BARRIER
I-11—__ . •
• � I I I� III-� I I, .III-
— I —
-
AT SOIL GRADE, WHERE
APPLICABLE
SUB -BASED-
_
I I' BASE COURSE
VAPOR BARRIER
1 VAPOR BARRIER AT SLAB EDGE ADJACENT TO OPEN-AIR SPACE
NTS
EXTERIOR
(OPEN-AIR)
- WALL (VARIES)
INTERIOR
(ENCLOSED SPACE)
VAPOR BARRIER
BASE COURSE
SOIL SUBBASE. STONE LAYER BETWEEN
ENCLOSED AND OPEN-AIR SPACES MUST BE
DISCONTINUOUS
VAPOR BARRIER AT SLAB EDGE ADJACENT TO OPEN-AIR SPACE
NTS
:V•
ENCLOSED OPEN-AIR
INTERIOR SPACE
VAPOR BARRIER
—III—III—I 11 =III—III=I
BASE COURSE I I —III III —I —"
SUB-BASE-1= I i III VAPOR BARRIER SEALED TO CONCRETE
_ PER MANUFACTURERS INSTRUCTIONS
(e.g. RAVEN BUTYL -SEAL TAPE OR
DRAGOTACK TAPE)
VIMS TERMINATION AT CONCRETE WALL
VAPOR BARRIER SEALED TO OUTSIDE
OF CONCRETE AND WATERPROOFING
MEMBRANE (IF PRESENT) PER
MANUFACTURER INSTRUCTIONS - SEE
DETAIL 26/VM-C
Pos^�
VAPOR BARRIER �
BASE COURSE)
Y SCH 40 PVC
90-DEGREE ELBOW
PIPE SLEEVE
VIMS PIPING AT CMU WALL SLAB STEP
NTS
VAPOR BARRIER SEALED TO OUTSIDE
OF CONCRETE AND WATERPROOFING
MEMBRANE (IF PRESENT) PER
MANUFACTURER INSTRUCTIONS - SEE
DETAIL 26NM-C
OPEN-AIR
VAPOR BARRIER SPACE
VAPOR BARRIER SEALED TO CONCRETE
PER MANUFACTURERS INSTRUCTIONS
(e.g. RAVEN BUTYL -SEAL TAPE OR
DRAGOTACK TAPE)
SOLID TO SLOTTED 3'. SCH 40 PVC PIPE
TRANSITION (SLIP COUPLING OR
THREADED JOINT)
SUB -BASE
VAPOR BARRIER SEALED TO CONCRETE
PER MANUFACTURERS INSTRUCTIONS
(e.g. RAVEN BUTYL -SEAL TAPE OR
DRAGOTACK TAPE)
ENCLOSED
INTERIOR
BASE COURSE) -i I I_I 11=1 1 1_1 1 1
III=1 � I i III I
SUB -BASE
VIMS AT CMU RETAINING WALL ADJACENT TO OPEN AIR SPACE
NTS
CMU WALL (NOT PRESENT
IN ALL LOCATIONS)
VAPOR BARRIER
(SEE SPECIFICATION #1) CONCRETE FLOOR SLAB
' _ -
BASE COURSE
(SEE SPECIFICATION #2)
VIMS AT CMU WALL FOUNDATION
NTS
SUB -BASE
OCCUPIED SPACE I I WALL (VARIES)
I I I I
CONCRETE I
FLOOR SLAB
BASE COURSE J
SUB -BASE
VAPOR BARRIER —
WATERPROOFING AND INSULATION
DESIGNED BY OTHERS, IF PRESENT
DRAIN —
OPEN AIR SPACE
I I
I I
` •III III Ilr
MOISTURE BARRIER
BY OTHERS
VIMS AT RETAINING WALL ADJACENT TO OPEN AIR SPACE
VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
14
hart hickman
SMARTER ENVIRONMENTAL SOLUTIONS
2923 South Tryon Street -Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(0
License # C-1269 / #C-245 Geology
DEVELOPER:
WHITE POINT
PARTNERS AND
MADISON CAPITAL
H&H NO. WPP-015
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APPROVAL
``��I11111/I//I
HART &
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No. C-1269
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DATE: 08-31-23
VAPOR INTRUSION
MITIGATION SYSTEM
CROSS —SECTIONS
DETAILS #1 —19
NTS VM-B NTS VM-B NTS VM-B NTS
VM-B

OCCUPIED SPACE I I WALL (VARIES)
I I I I
CONCRETE I
FLOOR SLAB I I
BASE COURSE
SUB -BASE) II -I I
WATERPROOFING AND INSULATION OCCUPIED SPACE
DESIGNED BY OTHERS, IF PRESENT
I I
VAPOR BARRIER SEALED TO OUTSIDE OF CONCRETE I
AND WATERPROOFING MEMBRANE, IF PRESENT,
(DESIGNED BY OTHERS) PER MANUFACTURER
INSTRUCTIONS (SEE DETAIL 26NM-C)
DRAIN
III=
a
VAPOR BARRIER
20 VIMS AT RETAINING WALL ADJACENT TO ENCLOSED SPACE
NTS
FROM PARKING
GARAGE TO LEVEL 1
CONCRETE OPEN AIR SPACE
RAMP SLAB
I I S
BASE COURSE
I
I
SUB -BASE
WATERPROOFING AND RIGID
INSULATION (IF PRESENT)
OCCUPIED SPACE
I
VAPOR BARRIER SEALED TO OUTSIDE OF
CONCRETE AND WATERPROOFING MEMBRANE
(WHERE PRESENT) PER MANUFACTURER
INSTRUCTIONS (SEE DETAIL 26NM-C)
DRAINS _
III=
VAPOR BARRIER
VIMS AT PARKING DECK RAMP ADJACENT TO OCCUPIED SPACE
NTS
VAPOR BARRIER SEALED TO OUTSIDE OF
CONCRETE AND WATERPROOFING
MEMBRANE (IF PRESENT) PER
VAPOR BARRIER SEALED TO
MANUFACTURER INSTRUCTIONS (e.g. REVEN
PIPE PER MANUFACTURER
BUTYL -SEAL TAPE OR DRAGOTACK TAPE)
INSTRUCTIONS
SOLID TO SLOTTED 3" SCH 40 PVC PIPE
PIPE TRANSITION (SLIP COUPLING OR
VAPOR BARRIER
SLEEVE THREADED JOINT)
BASE COURSEl—
I
w6"
i
SUB -BASE
VIMS PIPING AT INTERIOR CONCRETE OR CMU WALL
NTS
VAPOR BARRIER
BASE COURSE
-I I I -
SUB -BASE
VAPOR BARRIER SEALED TO OUTSIDE OF
CONCRETE AND WATERPROOFING MEMBRANE
(WHERE PRESENT) PER MANUFACTURER
INSTRUCTIONS (SEE DETAIL 26NM-C)
CONTINUOUS VAPOR BARRIER
SEALED PER MANUFACTURER
INSTRUCTIONS AROUND ELEVATOR
PIT BASE AND WALLS
VIMS AT ELEVATOR PIT
NTS
:III
SEE DETAIL 26/VM-C FOR
_
WATERPROOFING / VAPOR BARRIER
INSTALLATION SEQUENCE
WATERPROOFING MEMBRANE
(IF PRESENT - REFER TO ARCH. PLANS)
(SEE SPECIFICATION #13)
-77
SUMP PIT
IIIII IIIII IIIII; I I I
=IIII IIIII
VAPOR BARRIER
s-
BASE COURSE
-'II=1IE
SUB -BASE
VAPOR BARRIER SEALED TO
OUTSIDE OF CONCRETE AND —<
WATERPROOFING MEMBRANE (IF
PRESENT)PER MANUFACTURER
INSTRUCTIONS (SEE DETAIL
26/VM-C)
SEE DETAIL 26/VM-C
VAPOR BARRIER OPTION 2:
EPRO GEO-SEAL 100, OR
ENGINEER APPROVED
EQUIVALENT
SUMP PIT — r
PILES (WHERE PRESENT)
VIMS AT ELEVATOR PIT - COMBINED POUR SEQUENCE
NTS
WATERPROOFING
MEMBRANE, IF PRESENT,
' (DESIGNED BY OTHERS)
(SEE SPECIFICATION #13)
TERMINATE VAPOR
' BARRIER A MINIMUM 3
FEET FROM ELEVATOR
PIT WALL
SEAL VAPOR BARRIER TO PILE
IF PILES CONTACT BASE OF
ELEVATOR PIT
VAPOR BARRIER WATERPROOFING MEMBRANE
ADHERED TO CONCRETE
(IF PRESENT - REFER TO ARCH. PLANS)
DRAINAGE MAT ADJACENT (SEE SPECIFICATION #13)
TO SOIL (IF PRESENT)
I1I I I=
III=11 • ... .
III III III I II °•. .. -
_-III
SOIL BACKFILL _ ° °•
I —III— •. CONCRETE
I I -III • • • •• •' .
- 4•
VIMS AT ELEVATOR PIT OR WALL ADJACENT TO SOIL - WATERPROOFING DETAIL
NTS
3" SCH 40 PVC RISER DUCT PIPE
(SEE SPECIFICATION #4, #5 & #6)
VAPOR BARRIER SEALED TO PIPE PER—\
MANUFACTURER INSTRUCTIONS
SLOTTED 3" SCH 40 PVC
WALL (VARIES)
VAPOR BARRIER
a
L - +—BASE COURSE
SUB -BASE
3" SCH 40 PVC 90
DEGREE ELBOW
VIMS VERTICAL RISERS AT INTERIOR WALL WITH 90-DEGREE ELBOW
NTS
3" SCH 40 PVC RISER DUCT PIPE
(SEE SPECIFICATION #4, #5 & #6)
VAPOR BARRIER SEALED TO PIPE PER—\
MANUFACTURER INSTRUCTIONS
SLOTTED 3" SCH 40 PVC
WALL (VARIES)
VAPOR BARRIER
BASE COURSE
3" SCH 40 PVC TEE SUB -BASE
VIMS AT VERTICAL RISERS WITH PVC TEE
NTS
FLOOR CLEANOUT, ADJUSTABLE, 4" DIA ZURN
INDUSTRIES MODEL #CO2450-PV4 (OR ENGINEER
APPROVED EQUIVALENT) FLUSH WITH FINISHED FLOOR FINISHED FLOOR SLAB
2" DRAIN EXPANSION TEST PLUG
4" x 2" FLUSH REDUCER •
BUSHING
VAPOR BARRIER PENETRATION SEALED TO
OPEN-ENDED PIPE PIPE PER MANUFACTURER INSTRUCTIONS
2" SCH 40 PVC 90 DEGREE ELBOW
BASE COURSE
2" SCH 40 PVC SET WITHIN GRAVEL LAYER
6" MIN
30 VIMS MONITORING POINT - TYPICAL DETAIL VIEW
NTS
WALL (VARIES)
PIPE SLEEVE
FLUSH WITH
FINISHED FLOOR
FLOOR CLEANOUT,ADJUSTABLE,
4" DIA ZURN INDUSTRIES
MODEL #CO2450-PV4 (OR ENGINEER
APPROVED EQUIVALENT)
SEE DETAIL 30NM-C
OPEN ENDED PIPE SLOPE J� 1 11 -11� i--
BASE COURSE
2" SCH 40 PVC 90-DEGREE
VAPOR BARRIER PENETRATION SEALED TO 1 11 ELBOW
PIPE PER MANUFACTURER INSTRUCTIONS 1=III—III=III III' 'III_
VAPOR BARRIER EXTENDED TO
EXTERIOR SIDE OF FOOTER NO MORE
PROVIDE PIPE SUPPORT TO PREVENT LOW POINT THAN 6-INCHES BELOW FINISHED
IN SOLID SECTION OF PIPE. MAINTAIN MINIMUM 2" SOLID SCH 40 PVC GRADE WHERE POSSIBLE
1 % SLOPE TOWARD OPEN SECTION OF PIPE
32 VIMS MONITORING POINT THROUGH THICKENED SLAB
NTS
WALL (VARIES)
POSITION TOP OF 2" PIPE MINIMUM 10"
FROM TOP OF ACCESS PANEL DOOR
2" DRAIN EXPANSION TEST PLUG
PIPE SLEEVE 6.
OPEN-ENDED PIPE
12" X 12" FIRE -RATED ACCESS PANEL
TO MATCH FIRE -RATING OF WALL
POSITION AT CENTER OF WALL OR
10" MIN ALLOW FOR AT LEAST 1/2" DISTANCE
JAROUND ALL SIDES OF PIPE
VAPOR
BARRIER
BASE COURSE
III II ° I a 2" SCH 40 PVC 90
2" SOLID SCH 40 PVC PIPE DEGREE ELBOW
PROVIDE PIPE SUPPORT TO PREVENT LOW POINT IN SOLID
VAPOR BARRIER SEALED TO PIPE SECTION OF PIPE. MAINTAIN MINIMUM 1 % SLOPE TOWARD
PER MANUFACTURER OPEN-END OF PIPE. (SEE SPECIFICATION #7)
INSTRUCTIONS
VIMS MONITORING POINT AT WALL CONNECTION
NTS
TO EXHAUST
(SEE DETAIL 35NM-C) RATED PIPE PENETRATION
FIRESTOPPING TO CONTINUE FIRE
RATING OF THE FLOOR -CEILING
NEAREST 6" WALL I s. ASSEMBLY
SOLID 3" SCH 40 PVC.
FLOOR I 1 LENGTH VARIES, SLOPED
1 8PER FOOT
CEILING TRUSSES
3" SCH 40 PVC J
90-DEGREE ELBOW
MIN 1 %SLOPE TOWARD I
EXTRACTION POINT s"
CEILING —/
I
I
VIMS RISER WITH SECOND LEVEL OFF -SET (IF APPLICABLE)
NTS
PIPE SUPPORTS PER NC
BUILDING CODE
3" SCH 40 PVC
90-DEGREE ELBOW
RATED PIPE PENETRATION
FIRESTOPPING TO CONTINUE FIRE
RATING OF THE FLOOR -CEILING
ASSEMBLY
TURBINE VENTILATOR
(EMPIRE MODEL TV04SS OR ENGINEER
RUBBER NO -HUB APPROVED EQUIVALENT)
4" X 3" REDUCER
RISER DUCT PIPE THROUGH ROOF
FLASHING
ROOFTOP OUTDOOR -RATED ELECTRICAL JUNCTION BOX FOR
POTENTIAL FUTURE VACUUM FAN (REFER TO
SPECIFICATION #5)
VIMS TURBINE VENTILATOR FAN & EXHAUST
NTS
ENCLOSED
CONCRETE SPACE
FLOOR SLAB
BASE COURSE
SUB -BASE —�� I
3" SCH 40 PVC I
I
45-DEGREE ELBOW
WATERPROOFING AND
INSULATION (IF PRESENT)
I I
VAPOR BARRIER SEALED TO OUTSIDE OF I
CONCRETE AND WATERPROOFING MEMBRANE
(WHERE PRESENT) PER MANUFACTURER
INSTRUCTIONS (SEE DETAIL 26NM-C)
SLOPE-
3" SCH 40 PVC O
—1 7—
90-DEGREE ELBOW
DRAIN
VIMS AT STAIRWELL WITH PIPE CONNECTION
NTS
WALL (VARIES)
ENCLOSED
SPACE
PIPE SLEEVE
SOLID TO SLOTTED 3" SCH 40 PVC
PIPE TRANSITION (SLIP COUPLING
OR THREADED JOINT)
—VAPOR BARRIER
VAPOR BARRIER SEALED TO
PIPE PER MANUFACTURER
INSTRUCTIONS
CO
BASE COURSE
`SUB -BASE
VIMS AT RAMP
NTS
VAPOR BARRIER SEALED TO
OUTSIDE OF CONCRETE PER
MANUFACTURER INSTRUCTIONS
VAPOR BARRIER
EXTEND BARRIER TO
FOOTER WHERE POSSIBLE
L-
VIMS PIPING AT CMU WALL
NTS
SLOTTED 3" SCH 40
PIPE (IF PRESENT)
MASONRY WALL (VARIES)
F-- PIPE SLEEVE
VAPOR BARRIER SEALED TO PIPE
PER MANUFACTURER INSTRUCTIONS
SOLID TO SLOTTED 3" SCH 40 PVC
PIPE TRANSITION (SLIP COUPLING
OR THREADED JOINT)
ABASE COURSE
"s SUB -BASE
SEAL PIPE PENETRATION USING
AIR -TIGHT SEALANT (TYP)
SUB -SLAB VENTILATION DUCT
VAPOR BARRIER
VAPOR BARRIER
SEALED TO PIPE
PER MANUFACTURER
INSTRUCTIONS
PVC TERMINATION
~ •?
SCREEN (SEE
SPECIFICATION #3)
-I-III-III-I JJ1 JJ1 I -III -III -III-
1 I -III -III -I JJI J L III -III -III -III -I
BASE COURSE
SOLID TO SLOTT ED Y SCH 40 -III-III-I I L- '•
'. J J1 Jll 11=1 11-1=1=1
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADEDi I 1 • •'• •` •. •' •. •' • . •, y ••• �I 1-1-1-1
(IF PRESENT) III —III—_ _ _ _ lll
SUB I'lllllIlIIIIIIIIIIIIIIIIllllll SOLID 3"
-BASE — — — — — — SCH 40 PVC
VIMS PIPING OVER VENTILATION DUCT
NTS
SEALANT SET AROUND UTILITY BANKS
WITHIN DAM (e.g. RAVEN POUR'N
SEAL OR DRAGO SEALANT WITH 2" MIN
OVERLAP WITH VAPOR BARRIER (SEE
SPECIFICATION #10)
VAPOR BARRIER
BASE COURSE -III—III
SUB -BASE
40 VIMS AT UTILITY BANK (TYP)
NTS
EXTERIOR WALL I
(NOT PRESENT IN ALL LOCATIONS) I
I
I I
I I
I I
EXTERIOR GRADE
(VARIES)- ,
INSTALL VAPOR BARRIER AS
CLOSELY AS POSSIBLE TO EACH
PENETRATION PRIOR TO
APPLICATION OF SEALANT
—2' MIN
TYPICAL TRENCH
BACKFILL 3' MIN
TRENCH DAM
(SEE SPECIFICATION #14)
TRENCH BACKFILL AT BURIED UTILITY CONNECTION
AT BURIED UTILITY CONNECTION
NTS
SLAB
VAPOR BARRIER
—CONCRETE FLOOR SLAB
BASE COURSE
F1
-III—I SUB -BASE
VAPOR BARRIER SEALED TO
CONCRETE PER
MANUFACTURER INSTRUCTIONS
CONDUIT/UTILITY PIPING
VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
14
hart hickman
SMARTER ENVIRONMENTAL SOLUTIONS
2923 South Tryon Street -Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(0
License # C-1269 / #C-245 Geology
DEVELOPER:
WHITE POINT
PARTNERS AND
MADISON CAPITAL
H&H NO. WPP-015
O
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PROFESSIONAL
APPROVAL
0
`��I11111/I//I
CARo410'1
. "•
.iei
HART &
r„ • HICKMAN, PC c
:• No. C-1269 A
.0 : tiQ• :
,4 OFI IAU,`````�
��FSSS'�0��i
Q SEAL _
�,-�--"0444
J
DATE: 08-31-23
VAPOR INTRUSION
MITIGATION SYSTEM
CROSS -SECTIONS
DETAILS #20 - 40

Attachment C-I
VaporBlock 20 (VBP-20) Product Specification Sheets & Installation Instructions
do
hart hickman
WAOJ EREWROHME"TAaSOLUMUS

VAPORBLOCr PLUS TM I1 flex
UNDER -SLAB VAPOR / GAS BARRIER VBP20
PRODUCT DESCRIPTION
VaporBlock® PIusT"" 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® PIusT"^ 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, TICE, PCE,
methane, radon, other toxic chemicals and odors.
VaporBlock® PIusT'" 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® PIusT°° 20 is produced within the strict guidelines
of our ISO 9001 Certified Management System.
PRODUCT USE
VaporBlock® PIusTm 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® PIusTm 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® PIusTm 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.
Under -Slab Vapor/Gas Retarder
PRODUCT PART #
VaporBlock® PIusTm 20................................................................ VBP20
APPLICATIONS
Radon Barrier Vapor Intrusion Barrier
Methane Barrier Under -Slab Vapor Retarder
VOC Barrier Foundation Wall Vapor Retarder
Brownfields Barrier
\V,57p7oY g V lock' PE1A J7
0 2022 VIAFLEX, INC. All rights reserved.

VAPORBLOCr PLUS TM vePzo
UNDER -SLAB VAPOR / GAS BARRIER -
APPEARANCE
White/Gold
THICKNESS, NOMINAL
20 mil 0.51 mm
WEIGHT
102 Ibs/MSF 498 g/m2
CLASSIFICATION
ASTM E 1745
CLASS A, B & C
ASTM E 154
3
TENSILE STRENGTH
Section 9
58 Ibf 102 N
(D-882)
IMPACT RESISTANCE
ASTM D 1709
2600 g
ASTM E 154
Section 7
0.0098 Perms 0.0064 Perms
PERMEANCE (NEW MATERIAL)
ASTM E 96
grain s/(ft2-hr-imHg) g/(24hr•M2.mm Hg)
Procedure B
ASTM E 154
PERMEANCE (AFTER CONDITIONING)
Section 8, E96
0.0079 0.0052
Section 11, E96
0.0079 0.0052
(SAME MEASUREMENT AS ABOVE PERMEANCE)
Section 12, E96
0.0097 0.0064
Section 13, E96
0.0113 0.0074
WVTR
0.0040 grains/hr-ft2 0.0028 1 M2
Procedure B
BENZENE PERMEANCE
See Note 6
1.13 x 10-10 mZ/Sec or 3.62 x 10-13 m/s
TOLUENE PERMEANCE
See Note 6
1.57 x 10-10 m2/sec or 1.46 x 10-13 m/s
ETHYLBENZENE PERMEANCE
See Note 6
1.23 x 10-10 m2/sec or 3.34 x 10-14 m/s
M & P-XYLENES PERMEANCE
See Note 6
1.17 x 10-10 m2/sec or 3.81 x 10-14 m/5
O-XYLENE PERMEANCE
See Note 6
1.10 x 10-10 mz/sec or 3.43 x 10-14 m/s
HYDROGEN SULFIDE
See Note 9
1.92E-09 m/s
TRICHLOROETHYLENE (TCE)
See Note 6
7.66 x 10-11 m2/sec or 1.05 x 10-14 m/5
PERCH LOROETHYLENE (PCE)
See Note 6
7.22 x 10-11 mZ/sec or 1.04 x 10-14 m/s
RADON DIFFUSION COEFFIECIENT
K124/02/95
< 1.1 x 10-13 m2/s
3.68E-12 m/s
METHANE PERMEANCE
ASTM D 1434
Gas Transmission Rate (GTR):
0.32 mL/M2-dayatm
MAXIMUM STATIC USE TEMPERATURE
180' F 82' C
MINIMUM STATIC USE TEMPERATURE
- 70' F - 57' C
3 Tests are an average of machine and transverse directions.
VaporBlock® PlusT' Placement
5 Raven Industries performs seam testing at 20" per minute.
6 Aqueous Phase Film Permeance.
All instructions on architectural or structural drawings should be reviewed and followed.
Per-h- or volatile organs, C, ,p...d, through EvoH This, Film M-br.-
a.d C..Mri,ded LLDPE/EvoH/
Detailed installation instructions accompany each roll of VaporBlocke Plus'" and can also
LLDPE Ge-be-, WW-r, and Rowe, J.-.1 of Geutechni,,l and G....vimn-W E,gl.... ing® ASCE/
September 2015. (Permeation is the Permeation Coefficient adjusted to adual film thickness . calculated at 1 kg/m'.)
be located at www.ravenefd.com.
men.dy,wdWd,Wrmi.ePCEa Toititled :idirrusm.orPCEaTCEth-ghhigh
penor-cegeomer.bra..sbyDi
ASTM E-1643 also provides general installation information for vapor retarders.
Battirta and Rowe, Queens University 8 Feb 2010.
The study used to determine diffusion coefficients is titled: Hydroggen
Sulfide (H,S) Transport
through Simulated Interim Covers with Conventional and Co -Extruded Ethylene -Vinyl
Alcohol (EVCH) Geomembranes.
W�m� u L B VAPOR lock® �Da�M
VaporBlock® PIUSTM is a seven -layer co -extruded barrier made
using high quality virgin -grade polyethylene and EVCH resins to
provide unmatched impact strength as well as superior resistance
to gas and moisture transmission.
Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only,
not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or
given and actual testing must be performed for applicability in specific applications and/or conditions. VIAFLEX MAKES NO
WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of
satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or
damage. Limited Warranty available at www.viaflex.com
VIAFLEX, INC.
Scan OR Code to 821 W Algonquin Street Sioux Falls, SD 57104
download technical Ph: [phone] • TF: [phone]
data sheets. 0 2022 VIAFLEX, INC. All rights reserved.
[e-mail] V1i f 1i
www.viaflex.com
27-0123 09/22

TM
P0[zts1ock7NQ0
NDERSLAB VAPOR RETARDER / GAS BARRIER
Please Note: Read these instructions thoroughly before
installation to ensure proper use of VaporBlock®
PlusT". 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.
7A
••ram-�-71{�F -
Wr
P ceNr.
I%02�j
4'
• When VaporBlock® PlusT"" gas barrier is used
as part of an active control system for radon orgfd.�
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 Barrier
VaporSeall* 4" Seaming Tape
VaporSeall* 12" Seaming/Repair Tape
Butyl Seal 2-Sided Tape
VaporBoot Plus Pipe Boots 12/Box (recommended)
VaporBoot Tape (optional)
POUR-N-SEALT" (optional)
1" Foam Weather Stripping (optional)
Mako® Screed Supports (optional)
ifti-�TK"rU
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Elements of a moisture/gas-resistant floor system. General illustration only
(Note: This example shows multiple options for waterstop placement.
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® PlusTM' 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 VIAFLEX Butyl
Seal tape at the footing -wall connection. Prime concrete surfaces,
when necessary, and assure they are dry and clean prior to applying
VIAFLEX Butyl Seal Tape. Apply even and firm pressure with a
rubber roller. Overlap joints a minimum of 6" and seal overlap
with 4" VaporSeaIT" Tape. When used as a gas barrier, overlap
joints a minimum of 12" and seal in-between overlap with an
optional 2-sided VIAFLEX Butyl Seal Tape. Then seal with 4"
VaporSeall Tape centered on the overlap seam. (Fig. 2)
Fig. 1: VaporBlock® Plus'" Overlapping Roll -out Method
VaporSeal-4"Tape
Optional Butyl Seal VaporSealT`"
2-Sided Tape 4"Tape
Mipor RP1aF(J T Applicarloris
Gas Barrier Applications
Fof
Fig. 2: VaporBlock® Plus'" Overlap Joint Sealing Methods
Page 1 of 4

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 VIAFLEX
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 VaporSealTM
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 VIAFLEX 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 VaporSealTM' 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® PlusTM' square to create a tight seal
against the pipe.
F) Complete the process by taping over the boot perimeter edge with
VaporSealTM' 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
VaporSeal'" VaporBoot Plus
4" Tape Performed Boot
VIAFLEX Butyl Seal 2-sided Tape
ci., c
1. Cut out one of the
preformed boot steps
- (V 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.
Method 1
1. Cut a square of VaporBlock® 2. Cut four to eight slices about 3/8"
Plus'"" barrier to extend at least less than the diameter of the pipe.
12" from the pipe in all directions.
3. Force over pipe and tape the
underside boot perimeter to
existing barrier with 2-sided
Butyl Seal Tape.
AMW4. Tape over the boot
perimeter edge with
VaporSealTI Tape.
5. Use VIAFLEX VaporBoot or
VaporSealTM' Tape and
overlap 1" at the seam.
Method 2
Fin_ d
Square Material Pipe Boot
VaporBoot Flexible Tape
VaporSeal- or VaporSealTM' 4" Tape
4" Tape
12" VaporBlock&
(minimum) PlusTM'
/Material
VIAFLEX Butyl Seal 2-sided Tape
Ci.. G
Page 2 of 4

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 VIAFLEX Butyl Seal Tape in-between the
two layers. (Fig. 8)
E) After applying VIAFLEX Butyl Seal Tape between the patch
and membrane, tape around each of the penetrations and the
patch with VaporSealT" 4" tape. (Fig. 9) For additional protection
apply POUR-N-SEALT" or an acceptable polyurethane
elastomeric sealant around the penetrations. (Fig. 10)
Cut a patch large
enough to overlap
12" in all directions
and slide over
penetrations (Make
openings as tight
as possible.)
C7n 7
After applying
VIAFLEX Butyl Seal
Tape between the
patch and membrane,
tape around the
perimeter of the
penetration and the
patch with
4" Tapeal " E ■
Fin_ 9
VIAFLEX Butyl Seal 2-sided Tape
Option 1
Once the overlay
patch is positioned,
seal the perimeter
to the membrane by
applying 2-sided
VIAFLEX Butyl Seal
Tape in bet ��^'"�
two layers.
For additional protection
apply POUR-N-SEALTI or
an acceptable polyurethane
elastomeric sealant around
the penetrations.
Fin A
Fin R
Fin 1 n
Page 3 of 4

Option 2
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-SEALTM in plastic container for longer
than the time it takes to pour sealant.
Fig. 12
-NEW
r
Fig. 13
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 VaporSealT" 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" VaporSealTM' Tape.
Page 4 of 5

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® PlusTM' when installing screed
supports, utilize non -penetrating support, such as the Mako®
Screed Support System (Fig. 17). Avoid driving stakes through
VaporBlock® PlusT°". 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® PlusT" 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)
VaporBlock® PIuST""
Gas & Moisture Barrier
* Patent Pending
C;_ 14
r;_ 17
Vapor B lock° Plus"
Fig. 18
Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification
limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be
performed for applicability in specific applications and/or conditions. VIAFLEX MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE
OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or
recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at www.viaflex.com
VIAFLEX, INC.
821 W Algonquin Street Sioux Falls, SD 57104
Ph: [phone] • TF: [phone]
© 2022 VIAFLEX, INC. All rights reserved.
[e-mail] Viaflex
www.viaflex.com
27-0126 09/22
Page 5 of 5

ACCESSORIES
V i- flex
SEAMING TAPES & OTHER ACCESSORIES FOR PLASTIC SHEETING
From tie -down fasteners to field seaming tape, Viaflex has the accessories you need to
maximize your film's versatility and minimize installation time on the job.
VaporBond"' Tape (TVB4)
VaporBond'" Tape is a white single -sided
tape that combines a heavy-duty, weather -
resistant polyethylene backing with an
aggressive rubber adhesive. VaporBond'"
Tape offers excellent seaming capabilities for
our materials with an "Easy Tear' feature
to reduce installation time. TVB4 has a
WVTR of 0.18 perms per ASTM D3833. Typical
applications include vapor retarders, covers
and liners.
Available in 4" x 210' roll.
VaporSeaIT" Tape (TVSP4/TVSP12)
R25B Tape (112513)
R25B Tape is a single -sided aggressive
synthetic elastomeric adhesive that bonds
instantly to properly prepared polyethylene
and polypropylene. The black polymer
backing and adhesive is specially formulated
to provide years of performance even in direct
sunlight. A poly release liner provides for ease
of installation.
Available in 4" x 100' roll.
Butyl Seal Tape (TP2BR / TP6BR)
VaporSeaIT" Tape is a patent pending single -
sided 7-layer gas barrier tape with a release
liner for ease of installation. The backing
contains a layer of highly impermeable
EVOH designed to block migration of radon, re
R-2 methane, and VOC's. An aggressive acrylic
adhesive provides outstanding adhesion to
polyethylene over a wide temperature range.
Typical uses include joining, repairing and NP
sealing gas/moisture barriers.
Available in 4" x 160' and 12" x 50' rolls.
VaporBootT" Tape (TBOOT)
VaporBootT" Tape is a single -sided elastomeric
butyl tape used to complete pipe boot
installations (sealing the boot to the pipe).
The 100% stretchable butyl adhesive features
excellent adhesion values and 3-D stretching
that can be easily molded to multiple surfaces
without any creases and folds.
Available in 2" x 16.4' roll.
VaporBootT"' System (VBOOT)
The VaporBoot- System is designed to assist in
securing pipe and other penetrations that run
vertically through the vapor retarder material.
The VaporBoot'"" System offers a quick solution
and is delivered to the jobsite in a complete package.
VaporBoots are produced from high performance
VaporBlock® material.
Package Contents:
25 - VaporBoots (18" x 18", w/precut center marker)
1 Roll VaporBoot (TBOOT)
Tape 2'x16.4'
1 roll of Vapor Bond Tape (TVB4) 4'x210
Butyl Seal is a double -sided reinforced
aggressive black butyl rubber tape used to
join panels of polyethylene and polypropylene
together by overlapping the edges and
applying Butyl Seal in between. It is also
used to adhere to concrete walls and footings
when properly prepared. Butyl Seal is non -
hardening and flexible.
Available in 2" x 50' and 6" x 50' rolls.
POUR-N-SEALT"" (PNS1G)
POUR-N-SEAL'" is a gray two part epoxy
used to seal around multi -pipe penetrations
in areas where pipe boots are not practical,
when installing underslab barriers. The POUR-
N-SEAL'" system installation guide references
a 1" x 25 lineal feet adhesive -backed foam to
form a dam around multi -pipe penetrations
to contain POUR-N-SEAL'" during the setting
process. The 1 " x 25 ft. adhesive -backed foam
is sold seperately as FOAM25.
VaporBootT1 Plus Preformed Pipe Boots (VBPBT)
VaporBootTM Plus Preformed Pipe Boots are
produced from heavy 40 mil co -extruded
polyethylene and barrier resins for excellent
strength and durability. The preformed
boots are stepped to fit 1" to 4" wide pipe
- penetrations. VaporBootT"' Plus Preformed
Pipe Boots are available in quantities of 12
per box.
0 2022 VIAFLEX, INC. All rights reserved.

ACCESSORIES
Dura+Skrim® Reinforced Sandbags
Dura*Skrim® reinforced sandbags are
used to secure large covers and liners
to prevent wind damage. Sandbags are
produced with strong Dura*Skrim® 8
J __-� & 12 mil reinforced polyethylene. These
r - - 15" wide x 24" long bags are designed to
hold 35 lbs. Sandbags are also available
_ in other VIAFLEX reinforced materials
�� with minimum order requirements.
11 R" C;;hla Tiac ara alcn availahla
Tie -Down Buttons (BUTI) & Tarp Grabbers (BUTEZ)
®Tie -Down Buttons and Tarp Grabbers help keep
plastic sheeting securely in place. Tie -Down Buttons
are designed to eliminate traditional grommets in
1 plastic sheeting up to 10 mil thick and are reusable
l plastic fittings that are easy to install in any
s position. Tarp Grabbers are up to 4 times
stronger than a brass grommet and are
typically used in heavier plastic sheeting
from 10 mil to 30 mil thick. Great for
equipment covers, large storage covers
and truck tarps.
BACKING
ADHESIVE
COLOR
TYPE
SIZE
ROLLS PER CASE
WEIGHT PER CASE
ADHESION VALUES
PERMS
SERVICE TEMP.
MIN.
APPLICATION TEMP.
IDEAL STORAGE
TEMP. / HUMIDITY
6.7 mil Polyethylene
3.3 mil Rubber Based
Pressure -Sensitive
White
Single Sided
4" x 210'
12
45 Ibs
35 oz. / in. (to steel)
0.081 g/(24h*100 in 2)
-40' F to +180* F
50' F
7 mil EVOH/LLDPE
2 mil Acrylic Adhesive
Pressure -Sensitive
Silver
Single Sided
4" x 160' / 12" x 50'
12/4
50 Ibs / 18 Ibs
80 oz. / in. (to steel)
0.014 g/(24h*100 in 2)
-40' F to +190* F
50° F
70* F w/ 40-50 % 60°-80' F w/ 40-60 %
Dura-ClipT" (CLIP11)
VIAFLEX Welding Rod
30 mil EPDM
20 mil
Butyl Rubber
Black
Single Sided
2" x 16.4'
64
45 Ibs
145 oz. / in. (to steel)
N/A
+14' F to +122° F
14' F
70' F w/ 70 %
These full size clips are 11" long and
fit most commercial scaffolding. Dura-
ClipTM' will securely fasten your poly
sheeting to scaffolding, reducing wind
whip and increasing the life of your
enclosure. The Dura-ClipT" is normally
placed about every Tonto the enclosure.
VIAFLEX Welding Rod is used for
field seaming, repairs and detail work,
such as installing pipe boots. Packaged
in 25 lb spools, it is available in 4mm
and 5mm sizes to fit most brands
of extrusion guns. VIAFLEX
Welding Rod is made from a
thermally UV stabilized LLDPE resin
and is available in both black and
white to correspond with the color of
geomembranes being utilized.
8 mil Multi -Polymer
17 mil
Synthetic Elastomeric
Black
Single Sided
4" x 100'
6
33 Ibs
144 oz. / in. (to steel)
<0.005 g/(24h*100 in 2)
+20' F to +180* F
35° F
70' F w/ 40-50 %
N/A
40 mil
Butyl Rubber
Black
Double Sided
2" x 50'/ 6" x 50'
16/4
47 Ibs / 20 Ibs
88 oz. / in. (to steel)
0.82 g/(24h*100 in 2)
0' F to +170* F
35' F
70* F w/ 40-50 %
Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification
limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing
must be performed for applicability in specific applications and/or conditions. VIAFLEX MAKES NO WARRANTIES AS TO THE FITNESS FOR
A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained
information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at www.viaflex.com
VIAFLEX, INC.
Scan QR Code to 821 W Algonquin Street Sioux Falls, SD 57104
download technical Ph: [phone] • TF: [phone]
data sheets. © 2022 VIAFLEX, INC. All rights reserved.
[e-mail]
www.viaflex.com
Vic -flex
27-0016 05/23

POUR-N-SEAL TM
HIGH -STRENGTH EPDXY BONDINGADHESIVE
PRODUCT NAME
POUR-N-SEAL- (P/N: PNS1G)
MANUFACTURER
Viaflex, Inc.
821 W. Algonquin Street
Sioux Falls, SD 57104
PRODUCT DESCRIPTION
POUR-N-SEALT^" is a gray two-part medium
viscosity high strength epoxy used to seal
around multiple pipe penetrations in tight
areas where pipe boots are not practical,
when installing VaporBlock® moisture and
gas barriers.
TECHNICAL DATA
Applicable Standards:
• ASTM (American Society for Testing
and Materials)
• ASTM C881 Standard Specification for
Epoxy -Resin -Base Bonding Systems for
Concrete
• ASTM D695 Standard Test Method for
Compressive Properties of Rigid Plastics
• ASTM D638 Standard Test Method for
Tensile Properties of Plastics
• ASTM C882 Standard Test method for
Bond Strength of Epoxy -Resin Systems
Used with Concrete by Slant Shear
• ASTM Standard Test Method for
Deflection Temperature of Plastics Under
Flexural Load in the Edgewise Position
• ASTM D570 Standard Test Method for
Water Absorption of Plastics
MATERIAL PREPARATION
Store material overnight to precondition at a
temperature between 70' F to 80' F prior to use.
INSTALLATION
1. POUR-N-SEALTM is used to seal
moisture and gas barriers to multiple pipe
penetrations in situations where pipe boots
are not able to be installed due to the tight
concentration of the pipe penetrations.
2. Install the vapor/gas barrier as close as
possible to the penetrations by making a
small opening. Effort should be given to
minimize large gaps in the barrier next to
the penetrations, this will also reduce the
amount of POUR-N-SEALTM necessary to
complete an acceptable seal.
3. To help concentrate the sealant around
the pipe penetration, a dam can be formed
around the pipe grouping with an adhesive
backed weather stripping foam. One gallon
covers 80 sq. ft. at a thickness of 20 mils.
4. Only mix the amount of material that can
be used within the pot life of the epoxy,
approximately 36 minutes at 73° F. Premix
each component prior to combining. Pour
"A' and "B" components together and
thoroughly mix using a low speed drill with a
mixing paddle. Scrape the sides and bottom
to assure a consistent blend.
5. Once mixed, pour contents around the
pipe penetrations, if needed a brush or
flat wooden stick can be used to direct the
sealant completely around all penetrations
and overlap the moisture/gas barrierto form
a continuous seal. Avoid Contact with skin
(see SIDS for complete safety precautions).
Immediately dispose of any remaining mixed
POUR-N-SEALT' epoxy left in the container
to avoid excessive heat buildup.
6. Depending upon the temperature. POUR-
N-SEAL should be tack free in approximately
5 hours.
STORAGE/SHELF LIFE
Store in dry environment between 400 F and
800 F (40 C-270 Q. Do not allow product
to freeze. Shelf Life: 12 months from date
of manufacture in unopened containers
properly stored. Protect from moisture.
AVAILABILITY
Please call your local construction supply
distributor for availability of POUR-N-SEALTM
or call our toll free number at 800-635-3456.
SAFETY
POUR-N-SEALTM "B" component contains
amines and may cause severe burns upon
skin contact for any length of time. Use
OSHA -approved personal protective
equipment (PPE), including safety glasses,
gloves and confined space equipment/
POUR-N-SEAU
procedures if applicable. Avoid skin contact;
do not ingest. See SIDS for complete safety
precautions. For professional use only.
WARRANTY
Viaflex warrants its products to be free from
manufacturing defects and that products
meet the published characteristics when
tested in accordance with ASTM
standards. No other warranties by
Viaflex are expressed or implied,
including no warranty of
merchantability or fitness for a particular
purpose. Viaflex will not be liable for
damages of any sort resulting from any
claimed breach of warranty. Viaflex's liability
under this warranty is limited to replacement
of material or refund of sales price of the
material. There are no warranties on any
product that has exceeded the "shelf life"
or "expiration date" printed on the package
label.
TEST DATA
Compressive Strength
ASTM D-695
11,070
Compressive Modulus of Elasticity
ASTM D-695
370,000
Tensile Strength
ASTM D-638
3,480
Tensile Modulus of Elasticity
ASTM D-638
429,000
Tensile Elongation
ASTM D-638
1.2 %
Bond Strength (dry cure) - 2 day
ASTM C-882
3,390
Bond Strength (dry cure) - 14 day
ASTM C-882
3,600
Shore Hardness
D scale
86 D
Heat Deflection
ASTM D-648
120° F (49° C)
Water Absorption
ASTM D-570
< 1 %
Viaf kda—M Viaflex, Inc.
821 W Algonquin Street Sioux Falls, SD 57104
Ph: [phone] • TF: [phone]
[e-mail]
www.viaflex.com
27-0202 02/23

Attachment C-2
Drago-Wrap Vapor Intrusion Barrier Product Specification Sheets & Installation
Instructions
do
hart hackman
WAOJ EREWROHME"TAaSOLUMUS

DRAGO° WRAP
VAPOR INTRUSION BARRIER
A STEGO TECHNOLOGY, LLC INNOVATION I VAPOR RETARDERS 07 26 00, 03 30 00 1 VERSION: JAN 20, 2021
0 PRODUCT NAME
DRAGO WRAP VAPOR INTRUSION BARRIER
0 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
0 PRODUCT DESCRIPTION
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.
TABLE 4.1: PHYSICAL PROPERTIES OF DRAGO WRAP VAPOR INTRUSION BARRIER
. ASTM E1745 -Standard Specification for Water Vapor Retarders Used
in Contact with Soil or Granular Fill under Concrete Slabs
ASTM E1745 Compliant
ASTM F1249 -Test Method for Water Vapor Transmission Rate Through Plastic
Film and Sheeting Using a Modulated Infrared Sensor
0.0069 perms
ASTM D4833 - Test Method for Index Puncture Resistance of Geotextiles,
Geomembranes, and Related Products
183.9 Newtons
ASTM D882 - Test Method for Tensile Properties of Thin Plastic Sheeting
53.5 lbf/in
ASTM El54 Section 8, F1249 - Permeance after wetting, drying, and soaking
0.0073 perms
(ASTM E1745 ASTM El54 Section 11, F1249 - Permeance after heat conditioning
0.0070 perms
ASTM El54 Section 12, F1249 - Permeance after low temperature conditioning
0.0062 perms
ASTM El54 Section 13, F1249 - Permeance after soil organism exposure
0.0081 perms
Contact Stego Industries' Technical Department
Contact Stego Industries' Technical Department
ASTM D1434 - Test Method for Determining Gas Permeability Characteristics of 7.0 GTR**
Plastic Film and Sheeting (mL(STP)/mz*day)
K124/02/95 9.8 x 10-14 mz/second
20 mil
14' x 105'
or 1,470 ftz
150 lb
Note: perm unit = grains/(ftz*hr*in-Hg) ** GTR = Gas Transmission Rate

DRAGO° WRAP
VAPOR INTRUSION BARRIER
A STEGO TECHNOLOGY, LLC INNOVATION I VAPOR RETARDERS 07 26 00,03 30 00 1 VERSION: JAN 20, 2021
0 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 DragoSealT" 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.
0 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.
0 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.
0 MAINTENANCE
Store Drago Wrap in a dry and temperate area.
0 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
0 FILING SYSTEMS
• www.stegoindustries.com
J*L,
STEGO -
INfJUS� L=C

RAGOO WRAP
VAPOR INTRUSION BARRIER
INSIWATION IR
INSTRLL TIONS
IF Engineered protection to create a healthy built environment.

DRAGO
P2 of 5
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 El643 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.
UNDER -SLAB INSTRUCTIONS:
0 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.
® 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 DragoSeah" Tape. (Fig. 1).
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
DragoSeal 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.
® 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.
SEAL TO PERIMETER WALL (Fig. 2a) OR FOOTING (Fig. 2b)
WITH DRAGOTACK° TAPE:
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.
Fig.2a
Fig.1:
DRAGOTACK TAPE
��!,• ,•
DRAGO
vaaax ix,xusiox onxxiEa
FOOTING
Fig. 2b
r' • .
FOOTING , �
DRAGOT KTAPE
0�1
DRAGO

Qk6
DRAGO
P3 of 5
0 SEALING DAMAGED AREAS: (Fig. 3) 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 DragoSeal Tape.
Fig. 3:
r�RA.
DRAGOSEALTAPE
® IMPORTANT: ALL PENETRATIONS MUST BE SEALED. All pipe, ducting, rebar, and block outs should be sealed using
Drago Wrap and either DragoSeal Tape, Drago° Sealant and Drago® Sealant Form, or Drago° Mastic.
PIPE PENETRATION SEALING: (Fig. 4a)
Fig. 4a
DRAGO
a. Install Drago Wrap around pipe penetrations by slitting/cutting material as needed. Try to minimize void space
created.
b. If void space is minimal, seal around the base of the pipe using either DragoSeal Tape, Drago Sealant and
Drago Sealant Form, or Drago Mastic.
DETAIL PATCH FOR PIPE PENETRATION SEALING: (Fig. 4b)
Fig. 4b
0o DR
AGO
DRAGO
..Po.'...—....A.A
DRAGOSEALTAPE
a. 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.
b. Cut an "X" slightly smaller than the size of the pipe diameter in the center of the
detail patch and slide tightly over pipe.
c. Tape the edges of the detail patch using DragoSeal Tape.
d. Seal around the base of the pipe using either DragoSeal Tape, Drago Sealant and
Drago Sealant Form, or Drago Mastic.
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.
DRAGO
DRAGO SEALANT
DRAGO MASTIC

--LAA&
DRAGO
P4 of 5
MULTIPLE PIPE PENETRATION SEALING OPTIONS:
NOTE: Multiple pipe penetrations in close proximity may be most efficiently sealed using Drago Wrap, Drago Sealant and
Drago Sealant Form (Fig. 5a), or Drago Wrap and Drago Mastic (Fig. 5b) for ease of installation.
OP I ION 1: Multiple Pipe Penetration Sealing with Drago Wrap, Drago Sealant and Drago Sealant Form (Fig. 5a)
0 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.
© 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.
© Pour Drago Sealant inside of Drago Sealant Form to create a seal around the penetrations.
0 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.
Fig. 5a
DRAGO DRAGO
` � 4
DRAGO SEALANT DRAGO SEALANT
DRAGO DRAGO
OPTION 2: Multiple Pipe Penetration Sealing with Drago Wrap and Drago Mastic (Fig. 5b)
all
rr <
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. Apply Drago Mastic around the entire perimeter of the group of penetrations and between the
penetrations to fill any void spaces present.
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.
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.

DRAGO
P5 of 5
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.
BEAST° SCREED is a BEAST® HOOK is a BEAST® FORM STAKE can be
fixed -elevation, point -to- faster, easier way to set 2x4 used with Beast Foot as part of the
point guide screed system overhead screeds. Use Beast® Stego vapor barrier -safe forming
designed to replace com- Foot and Beast Form Stake and system which meets ASTM El643
mon wet -screed methods. make it a vapor barrier -safe requirements.
ra screed system.
STEGO INSTALLATION SUPPORT
PEACE OF MIND IS OF GREAT VALUE...
A FREE SERVICE OFFERED BY STEGO INDUSTRIES
When you choose Stego® Barrier Solutions and products,
you gain access to a large nationwide network of full-time
technical sales representatives providing unmatched local
support and service.
Contac
Please contact us to get in touch with the nearest Stego representative for
information regarding pricing, samples or where to purchase Drago products.
877-464-7834 1 stegoindustries.com
A*-
STEGO.
INDUSTRIES, LLC

Attachment C-3
Slotted PVC Pipe Product Specification Sheets
Id
;.,%r,cirn

JBIG FOOT SLOTTED PVC
R
%■ le
Manufacturing SCRE
Company
Slotted screens can be fabricated from the lightest class
PVC to the heaviest. We can slot pipe from 1/2" diameter
through 18" diameter and up to 20' lengths. Slot sizes .008
and wider are available with a variety of configurations pos-
sible, depending on slot size, spacing and number of rows of
slots. A row consists of slots, normally spaced at 1/8" inter-
vals, cut perpendicular to the axis of the pipe and running
from one end of the pipe to the other. Most pipe can take
up to two rows more than the stated diameter of the pipe
---_ without significant structural weakening. Screens and pipe
-— can be furnished with flush -threaded or slip joints as well as
conventional fittings.
PVC SPECIFICATIONS
Schedule.,
O.D. Wall
Thickness
Schedule :,
O.D. Wall O.D. Wall O.D. Wall
Thickness Thickness Thickness
For information on other products contact Big Foot Manufacturing
or refer to ASTM F480-88A specifications.
BIG FOOT MANUFACTURING CO
1480 Potthoff, Cadillac, MI 49601
Phone [phone] Fax [phone]

B I G FOOT
Manufacturing
Company
INTAKE AREA PER FOOT - .125 SPACING
SCHEDULE 40 PVC
PIPE
SIZE
ill
NUMBER
• -•
3
��:
2.20
2.64
3.13
3.92
4.48
1 1/4"
3
2.20
2.64
3.13
3.92
4.48
1 1/2"
4
2.90
3.52
4.18
5.22
5.98
2"
4
2.90
3.52
4.18
5.22
5.98
3"
6
4.30
5.30
6.26
7.83
8.96
4"
6
4.30
5.30
6.26
7.83
8.96
5"
8
7.00
8.35
10.44
11.95
6"
8
7.00
8.35
10.44
11.95
8"
8
10.44
11.95
101,
10
SIZE
ill
OF ROWS
3
4.92 6.00
6.55
8.64
0.0
1 1/4"
3
4.92
6.00
6.55
8.64
1 '/2"
4
6.56
8.00
8.74
11.52
15.36
2"
4
6.56
8.00
8.74
11.52
15.36
24.00
3"
6
9.84
12.00
13.10
17.28
23.04
36.00
4"
6
9.84
12.00
13.10
17.28
23.04
36.00
5"
8
13.12
16.00
17.47
23.04
30.72
48.00
6"
8
13.12
16.00
17.47
23.04
30.72
48.00
8"
8
13.12
16.00
17.47
23.04
30.72
48.00
10"
10
16.60
20.00
21.84
28.80
38.40
60.00
1" and 11/4" pipe based on 3/4" length of slot
Based on 1" of opening in I.D. of pipe.
Pipe sizes'12" through 18" can be slotted.
Specifications for other diameter pipe available from Big Foot Manufacturing.
BIG FOOT MANUFACTURING CO.
1480 Potthoff, Cadillac, MI 49601
Phone [phone] Fax [phone]

FERGUSON
3" SCH40 SLOTTED .060" wide x.375"
spacing x 3 rows g 120
............... ....................... ..................... : ........................... Slot Spacing Slot Width
I
. 5
10 37 .0 60'
Customer Signature Approval
AN INdIlSTRIES. INC.
Specifications
3" SCH40
3" OD — 3.50"
SCH40 Wall — 0.216"
ID — 3.068"
Weight — 1.458 lbs per foot
East Hwy 30
Paxton, Nebraska 69155
308-239-4281

Attachment C-4
Soil Gas Collector Mat Specification Sheets and Installation Instructions
Id

Pnomsionni Discouni supm
Made in
the USA
SOIL GAS COLLECTOR MAT
Installation Guide
Radon Ready New Construction
Time -saving, low-cost solution
Easy Installation
Reduce Liability!
Used in all 50 states and
Internationally
Complian under multiple codes:
AARST-ANSI, ASTM,
IRC Appendix F,
EPA, HUD, and more!
Simple, modern solutions for soil
gases: radon, vapor, and VOCs
Photos, vic
.Rw
v_
..� __ •- i-�+- is ii�+. .'Y .. .-.J
t�• L � rr�_�ir�

SOIL GAS COLLECTOR MAT FOR
RADON READY NEW CONSTRUCTION
According to the US EPA's model stan-
dards for radon control systesm in new
building construction, a means for col-
lecting soil gas should be installed be-
neath the slab.
More and more mitigators and buildiers
are using PDS' soil gas collector mat
because its installation does not entail
any special coordination with plumb-
ers or other site contractors. Low pro-
file mat saves time as it removes the
need for trenching. Just lay radon mat
down around the inside perimeter of
the foundation, secure it with spikes or
landscaping staples, and pour the con-
crete.
SGC mat is superior to other mat sys-
tems because of its thickness and it
has a geotextile fabric cloth surround-
ing the entire mat material. This fea-
ture eliminates the ened to lay a plas-
tic barrier or sheet on top of the mat
to protect the matrix. Using plastic
sheeting can cause concrete cracking
due to differential dewatering. The full
fabric design greatly enhances both the
installation as well as the quality of the
concrete slab. When SGC mat is in-
stalled below the slab, you're providing
an airspace that intercepts radon --and
other soil gases and vapors --before
it seeps into the building through the
slab. SGC mat also works well as a soil
gas collector beneath crawlspace bar-
rier due to its low -profile.
The matting is a one inch high by
twelve inch wide matrix enveloped in
a geotextile filter fabric. 90% of the
geomatrix is airspace, which means
soil gas has room to move to the col-
lection point. This creates incredible
pressure field extension for post con-
struction system activation. The mat
can support concrete without com-
pressing, yet is extremely lightweight
and easy to handle.
This system allows for radon to flow
through teh filter fabric and into the
airspace. The airspace does not clog
because the filter fabric retains teh
underlying gravel and soil. The natural
airflow through the mat then channels
the radon to the T riser to pipe connec-
tion. From there, hazardous gas can be
vented safely through the roof of the
building.
Another key element of a soil gas col-
lection system is attaching the 4" riser
to the mat, such that airflow is not
restricted at this critical juncture. The
soil gas T riser is unique as it has three
ports, two redundant mat entries and
one PVC connection to outside air. This
unique fitting connects all three sides
without special connections or fittings.
common duct tape and caulk does the
trick.

NO TRENCHING
NO BACKFILL
NO VAPOR BARRIER*
It's called SOIL gas mat for a reason,
Place directly on soil or substrate.
,r
Low -profile (1" thick) gas mat
does not require trenching. �
RM,

INSTALLATION INSTRUCTIONS
1. Begin work on the sub grade (soil or gravel) after the final preparation and
before the concrete is poured. Start with T-Riser(s) and work out to ensure
smooth mat placement. Position the T-Riser(s) in appropriate location(s) and
nail down with a 12" steel nail (T Nail) through precut center hole.
2. Slide mat into flat openings on either end of T-riser with a portion of the fab-
ric around the outside. Tape the fabric to the outside of the T-Riser with duct
tape and staple mat to the ground with landscape staples to ensure soil contact
remains during pour stage.
3. Mat is typically laid out in a rectangular loop in the largest area with branch-
es or legs into smaller areas (FREE plan design at www.radon mat.com). There
is no need to trench the mat. Roll out the SGC mat, smooth it onto the ground.
To avoid wrinkles and buckling, work away from the risers, stapling to the
ground as you go. The mat should be stapled every three to four feet, in addi-
ton to corners, tee junctions & ends.
5. Corners are constructed by peeling back the filter fabric, cutting two ends
of the matrix at 45 degree angles and butting (or overlapping: no more than
1/2") the matrix together. Pull the filter fabric back and tape into place. Staple
across the joint of the matrix and each leg of the corner. Use a minimum of
four staples at each corner-- two across the joint and one on each leg.
6. The tees for branches and legs are constructed by slitting the fabric of the
main loop at the location desired. Cut the fabric of the branch at the edges and
expose two inces of the matrix. Cut off the exposed matrix and but the ma-
trix of the branch (or overlap 1/2")to the matrix of hte main loop. Pull the flter
fabric of the branch back over the main loop and tape into place. Staple across
joint of the matrix with two staples and one each on the branch and main loop.
Use a minimum of four staples at each tee, two across the joint and one on
each loop and branch.

7. All openings in the fabric at joints, tee's, and ends of branches should be
taped to keep out concrete.
8. Stub up a few feet of 4" schedule 40 PVC* from all T risers before pour (or
cover T riser with duct tape). Seal with polyurethene caulk and screws. This
ensures no concrete aggregate enters the riser during slab pour. Be sure to
label "CAUTION RADON REDUCTION SYSTEM" on all pipe. *(6" PVC may be
substituted --for large multifamily projects. Simply cut T riser 4" insert away to
reveal 6" insert).
9. When the building is ready for the vent pipe to be installed above the slab,
fit to pre -stubbed PVC with PVC straight connect. If PVC was not preset, cut
duct tape from riser and insert 4" PVC pipe now. Seal with polyurethene caulk
and secure with screws. Always label "CAUTION RADON REDUCTION SYSTEM"
to avoid confusion on site and for the building occupants.
note: The openings in the riser are laid out at 180 degrees to accomodate
straight runs of mat. However, if the riser is to be placed in a corner, which is
not uncommon, the front of the T can be cut and the SGC mat inserted into
the new opening. The side of the T that is unused should be sealed with tape.
This creates a 90 degree T which will allow corner placement for the riser. Mat
should always enter the T riser from at least two directions and exhaust to pipe
vertically.

MAKING CORNERS AND SPLICES
The mat should be routed around the inside perimeter of the foundation. This
will require occasional corner junctions. Furthermore, splices will have to be
made to join two lengths of mat together. Corners and splices are very easy to
make, and do not require any special fittings. Cut back the filter fabric to reveal
the core material. In the case of a splice, merely overlap the core by at least
one corrugation, replace the cloth, and tape it. Use two landscape staples to
hold the splice in place. In the case of a corner, peel back geotextile fabric and
slice the core of the two adjoining legs at 45 degree angles which mirror each
other; overlap the edges by one corrugation; return grey geotextile fabric, tape
and staple the corner together.

A convenient T-riser with dual entry al-
lows for either end of the loop of mat
to be secured to the riser. Slide the
mat into each end of the riser and tape
the edge to prevent wet concrete from
entering. Cap the riser to ensure no
concrete enters. T Riser caps can be
purchased in leui of duct tape. A pres-
tub of PVC pipe can also serve the same
purpose. See steps 8-9 of the previous

TRENCH & FOOTER CROSSINGS
FLAT OUTLET
SGC to PVC transition
SIDE VIEW GOING THRU FOOTER/ INTERMEDIATE WALL
SOIL GAS MAT
PVC PIPE
SOIL GAS MAT
GRAVEL OR SOIL UNDER MAT
FOOTER/INTERMEDIATE WALL/ TRENCH
TOP VIEW GOING OVER FOOTE R/WALL/TRE N CH
4" sch. 40 PVC PIF
GRAVEL OR SOIL UNDER MAT

STEEL SLEEVE
24" (36") x 1" x 12"
SIDE VIEW GOING THRU FOOTER/ INTERMEDIATE WALL
SOIL GAS MAT
STEEL SLEEVE 1" thick
SOIL GAS MAT
i 7
GRAVEL OR SOIL UNDER MAT
FOOTER/INTERMEDIATE WALL/ TRENCH
TOP VIEW GOING OVER FOOTER/WALL/TRENCH
Soil Gas Mat
u
�
w
�
w—
STEEL SLEEVE
available in 24" or 36"
u
z
w
Soil Gas Mat
GRAVEL OR SOIL UNDER MA-r

POURING CONCRETE
The filter fabric that comes sewn around the soil gas collector prevents the wet
concrete from entering the mat and reducing its air collection capacity. The
only precaution that needs to be taken is that the fabric is duct taped closed at
seams of splices and corner to sufficiently keep the uncured concrete from en-
tering.
The mat also needs to be secured to the soil with landscape staples to prevent
the concrete from lifting off the soil while it is being applied. Re -enforcing bars
and wire can be laid on top of the mat.
Note: the mat is strong enough (4,300 psf) to withstand concrete workers and
their wheel barrows.

Attachment C-5
Ventilator Specification Sheet
do
hart hickman
WAOJ EREWROHME"TAaSOLUMUS

EMPIRE
VENTILATION EQUIPMENT CO., INC.
TURBINE VENTILATORS
OIL=1 E 13EAFIINO
.8 -
HE 3HT
,b:'THR0.&- :
"A'
THROAT SIZE
CONSTRUCTION SPECIFICATIONS
GUAGE
NO. OF
BRACES
BRACE
MATERIAL
CROWN 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
1 4
STEEL
TOP'OF THE LINE VENTILATORS
FOR BOTT-ON LINE RESULTS
13UTGIOE ER ;0E
sPAr—r
FPFAI FIT 0rLID
K.M SHArZ
aALL BEA FZ14 G
AFnffl
4 up ro
13IN13 F
TRUCT EIEARINY3
LONEP.9E R M{3 FO4
WENT;;LATORa 10" 10 n ' ::
DIMENSIONAL
1 PERFORMACE
DATA
"A"
THROAT SIZE
"B"
HEIGHT
"C"
OVERALL WIDTH
EXHAUSTED
CAPACITY*
APPROX.
SHIPPINGWEIGHT
4
12
10 1/4
125
5
6
141/2
12 3/4
147
7
8
15
141 /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 MPH WIND CFM

Attachment C-6
Monitoring Point Access Termination Specification Sheets
do
hart hickman
WAOJ EREWROHME"TAaSOLUnOUS

2FURN.
CO-2450
ADJUSTABLE FLOOR CLEANOUT
SPECIFICATION SHEET
TAG
Dimensional Data (inches and [ mm ]) are Subject to Manufacturing Tolerances and Change Without Notice
�0516"1132mr1I�
Typical Installation
NICKEL BRON7F ALJUSTARI F
HEAC
OPT
CARPET RR
ABS PLUG
PVC/ABS E
Product
Dimensions in In [mm]
'A' Connections
'B'
CO-2450-PV2
2 [51] PVC Hub
1-3/4 [44]
CO-2450-PV3
3 [76] PVC Hub
3 [76]
CO-2450-PV4
4 [102] PVC Hub
3-7/16 [87]
CO-2450-AB2
2 [51] ABS Hub
1-3/4 [44]
CO-2450-AB3
3 [76] ABS Hub
3 [76]
CO-2450-AB4
4 [102] ABS Hub
1 3-7/16 [87]
OPTIONS (Check/specify appropriate options)
PRODUCT
CO-2450-PV2
CO-2450-PV3
CO-2450-PV4
CO-2450-AB2
CO-2450-AB3
CO-2450-AB4
Regularly furnished unless otherwise specified.
7/8(22 MM) MIN.
TO
3/4(44 MM) MAX.
B
OPTIONAL
TREWS (-VP)
SING SCREWS
ISHED FLOOR
VENEER
ISHED FLOOR
SLAB
UGH FL�,�,P
L-6
Engineering Specification: Zurn CO-2450
Adjustable Floor Cleanout, recommended for foot traffic and
light -duty applications. This ceanout is furnished with a PVC
or ABS body, with an adjustable nickel cover and an ABS taper
thread plug.
UPC
O
SUFFIXES
-CM Carpet Marker
-VP Vandal Proof
Applies to PV3, PV4
AB3 and AB4
Zurn Industries, LLC I Light Commercial Plumbing Products Rev. C
1801 Pittsburgh Avenue, Erie, PA U.S.A. 16502 Ph. 855-663-9876, Fax [phone] Date: 12/13/17
In Canada I Zurn Industries Limited C.N. No. 139307
3544 Nashua Drive, Mississauga, Ontario L4V 1 L2 • Ph. 905-405-8272, Fax [phone]
Prod. I Dwg. No. CO2450
www.zurn.com

The Williams Bros.
Corporation of
America
FAMILY OWNED & OPERATED
Y=rx Since 1990
SUBMITTAL SHEET
A
WALL &
CEILING
SURFACE
�a
z
0
p II
Self latching
Slam Catch
FRONT ELEVATION
D o
O
0
0
01
a
0 0 0 0 O
�
1
Optional HOT
Smoked Seal*
gasket
Knurled Knob
Lock w"
Flush Key
r�
LIAR OPENING
WIDTH
-I.
CLEAR
OPENING
HEIGHT
C
SECTION DETAIL
Fire -rated access door for ceiling installation for 3 hr max size 24 x 36.
This fire -rated door can be
used wherever it is necessaryFLOOR
CEILING OPENING -DOOR SIZE+3/8"
2"SCREFTAPPING
AROUND ROUGH OPENING 2"SCREWS
to provide service access to
�
shafts and any other location
which must have a fire rating.
C-SHAPED`
STEEL JOIST
AUTOMATIC SPRING
- CLOSER ON ALL DOORS
INTERIOR
LATCH
WOOD
JOIST
Approved ceiling use.
RELEASE
_
UL Listed "B" label for
E1�
Z
INSU........
s s
1-1 12 hours (vertical).
^"
IA"
Warnock -Hersey listed for 3 hours horizontal.
y (horizontal).
CONCEALED ROD
5/8"FIRE CODE HINGE
KNURLED KNOB/FLUSH KEY
GYPSUM BOARD
OR KEY OPERATED
NOTE: For fire -rated ceiling access doors, on size 16" x 16" and larger, extra spring supplied with door must
be attached from back of door pan to framing or floor above. In horizontal (ceiling) applications door has
self -assisted closing.
** Hot Smoke Seal' fire tested. Listed to meet the requirements of standards UL10B, UL10C, UBC 7-2, Part 1 and
BS476: 1987 for application to fire rated door assemblies. Tested for smoke controlled assemblies: Listed to meet the
requirements of standards UL1784, NFPA 105, UBC 7-2, Part 2, and BS476:Part 31, Section 31.1:1983.
It also is a chemically inert, highly stable, expandable graphite strip, tested and proven in positive pressure conditions to
withstand both hot smoke and hot gasses, resulting in the longer integrity of a door assembly. More economical to use
than specially modified doors in "tested assembly only" classifications. Chemically inert, and therefore will not degrade
from carbon dioxide and ozone like the many intumescents being offered by other manufacturers.
Hot Smoke SeaITM is not affected by moisture and will not break down like fiber or cellulose based products and does
not require periodic after market field inspections.
Insulation: is a rigid mineral wool (stone wool) insulation board for high temperature industrial applications subject to
light mechanical loads.] - 2" thickness.
SPECIFICATIONS:
Door: 20 ga. steel
Trim: 16 ga. steel
Finish: Primed white baked enamel, paintable surface
Latches: Knurled knob lock w/1 Flush key
Hinge: Flush continuous piano type hinge.,
Concealed pin. Allows opening to 180'
Insulation: 2" thick mineral wool in between
two pieces of 20 ga. steel
Ceiling Installation: To comply with current fire regulations,
largest size acceptable is 24" x 36"
OPTIONS (at additional cost)
Finishes:
❑ Stainless Steel Type 304 No. 4 Satin Finish Brushed
❑ Stainless Steel Type 316 No. 4 Satin Finish Brushed
Options: (additional cost)
❑ Mortise Best Lock or locks by others
❑ Hot Smoke Seal gasket all 4 sides*
❑ Special sizes available
t/
Model
No.
or
size
W x H
Wall
Opening
Slam
Catch
Ship
Lbs.
FR 800
8x8
8114x81/4
1
8
FR 800
1000 10
101/4 x 101/4
1
10
FR 800
12 x 12
121/4 x 121/4
1
12
FR 800
12 x 18
121/4 x 181/4
1
15
FR 800
12 x 24
12114 x 24114
1
19
FR 800
14 x 14
141/4 x 141/4
1
14
FR 800
16 x 16
161/4 x 161/4
1
17
FR 800
18 x 18
181/4 x 181/4
1
21
FR 800
18 x 24
18114 x 24114
1
26
FR 800
20 x 30
20114 x 30114
1
24
FR 800
22 x 22
22114 x 22114
1
28
FR 800
22 x 24
22114 x 24114
1
29
FR 800
22 x 30
22114 x 30114
2
39
FR 800
22 x 36
22114 x 36114
2
47
FR 800
24 x 24
24114 x 24114
1
32
FR 800
24 x 30
24114 x 30114
2
43
FR 800
24 x 36
24114 x 36114
2
48
FR 800
24 x 48*
24114 x 48114
2
62
FR 800
30 x 30*
30114 x 30114
2
48
FR 800
32 x 32*
30114 x 32114
2
55
FR 800
36 x 36*
36114 x 36114
2
58
FR 800
36 x 48*
36114 x 48114
2
62
FR 800
48 x 48*
48114 x 48114
2
68
*Wall installation only
RELATED PRODUCTS
Project: Date:
WB FRU 810 Ultra
Contractor: Architect:
Series Fire -Rated
Sizes:
Quantity: App Initials:
1330 Progress Drive • Front Royal, VA 22630 • Phone: [phone] • WWW.WhdoorS.COM
Family Owned a Operated
Since 1990
n1I
-10
BuyOnline
WBCA 2019 b

Original Gripper°
Gripper plugs can be used in a variety of
applications including DWV (drain, waste
and vent) testing and stack testing.
End -of -Pipe design won't fall in, whereas
the Inside -of -Pipe design allows you to
locate the plug inside the pipe as far as
you need. Time tested, the Gripper° Plug
remains one of the most popular
mechanical plugs on the market.
Original Gripper° Plug Features:
• Ideal for sewer testing and long-term applicat
• Made with glass -reinforced ABS plastic
• End -of -pipe design seals only at the end of a
• Inside -of -pipe design seals inside pipe as far
Equipped with:
• Easy -to -install extra large zinc wing nut - won't rust
• Natural rubber o-ring
• Galvanized carriage bolt to prevent corrosion
End -of -Pipe Gripper° plug
End -of -Pipe Gripper
Nominal Size
Usage Range
1-1/2" (40 mm)
1.48"-1.65" (39-42 mm)
2" (50 mm)
1.9"-2.17" (49-55 mm)
3" (75 mm)
2.8"-3.1" (71-79 mm)
4" (100 mm)
3.8"-4.06" (96-103 mm)
6" (150 mm)
5.77"-6.08" (147-154 mm)
Inside -of -Pipe Gripper° plug
Maximum Back Pressure
Length
Product Weight
17 psi (1,2 bar)
40 ft. (12 M)
1.75" (44.5 mm)
0.13 Ibs (0.05 kg)
17 psi (1,2 bar)
40 ft. (12 M)
1.87" (47.5 mm)
0.19 Ibs (0.09 kg)
17 psi (1,2 bar)
40 ft. (12 M)
2.5" (63.5 mm)
0.375 Ibs (0.16 kg)
17 psi (1,2 bar)
40 ft. (12 M)
2.5" (63.5 mm)
0.5 Ibs (0.23 kg)
17 psi (1,2 bar)
40 ft. (12 M)
3.75" (95.3 mm)
2.5 1bs (1.14 kg)

Attachment C-7
Wal-Rich Corporation PVC Termination Screen
do
hart hackman
WAOJ EREWROHME"TAaSOLUMUS

Vn
A 09
WAL=RICH
coePoanrioN
f'0e*'5:T*%
LL 6M
STAINLESS STEEL TERMINATION SCREENS
�JEW
■ Ideal for use on high
efficiency heating equipment
■ Also as condensate trap
screen & vent stack guard.
Patent# D715,409
♦ 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
2202050
2" Stainless Steel Termination Screen
2202052
3" Stainless Steel Termination Screen
2202054
4" Stainless Steel Termination Screen
2202056
6" Stainless Steel Termination Screen
MADI? IN USA
2202060 1" Stainless Steel Termination Screen