25053 - VIMP_Sealand Contractors_Rev 2

Via Email May 21, 2024
NCDEQ – Division of Waste Management Brownfields Program
1646 Mail Service Center Raleigh, North Carolina 27699-1646 Attn: Mr. Bill Schmithorst Re: Vapor Intrusion Mitigation Plan – Rev. 2 Sealand Contractors
Parkwood Avenue and N. Davidson Street Charlotte, North Carolina Brownfields Project No. 25053-21-060
H&H Project No. SCF-004
Dear Bill: On behalf of 515 Parkwood, LLC, please find the enclosed Vapor Intrusion Mitigation Plan (VIMP) -
Revision 2, dated May 21, 2024 prepared for Phase 1 of the proposed multi-family development called Cordo (previously known as 515 Parkwood) planned at the Sealand Contractors Brownfields property in Charlotte, Mecklenburg County.
Should you have questions or need additional information, please do not hesitate to contact us at [phone]. Sincerely,
Hart & Hickman, PC
Ralph McGee, PG Trinh DeSa, PE Project Manager Engineering Manager
Enclosures: cc: Ms. Annie Hull, SpaceCraft (Via Email) Mr. Brian Nicholson, SpaceCraft (Via Email) Mr. Josh Gresham, SpaceCraft (Via Email)

#C-1269 Engineering #C-245 Geology

Vapor Intrusion Mitigation Plan
515 Parkwood – Phase 1
Revision 2

Sealand Contractors
515 Parkwood Avenue
Charlotte, North Carolina
Brownfields Project No. 25053-21-060

H&H Job No. SCF-004
May 21, 2024
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Vapor Intrusion Mitigation Plan – Phase 1 (Rev. 2) Sealand Contractors 515 Parkwood Avenue Charlotte, North Carolina Brownfields Project No. 25053-21-060 H&H Job No. SCF-004
Table of Contents
1.0 Introduction ................................................................................................................ 1
1.1 Site Background Information ................................................................................2
1.2 Previous Assessment Activities .............................................................................3
2.0 Design Basis ................................................................................................................ 7
2.1 Base Course Layer and Vapor Barrier ..................................................................8
2.2 Horizontal Collection Piping and Vertical Riser Piping .......................................9
2.3 Monitoring Points ................................................................................................10
2.4 General Installation Criteria ................................................................................11
3.0 Quality Assurance / Quality Control ...................................................................... 13
4.0 VIMS Effectiveness Testing .................................................................................... 14
4.1 Influence Testing .................................................................................................14
4.2 Pre-Occupancy Sub-Slab Soil Gas Sampling ......................................................14
4.3 Pre-Occupancy Indoor Air Sampling ..................................................................15
4.4 VIMS Effectiveness Results ................................................................................17
5.0 VIMS Effectiveness Monitoring ............................................................................. 19
6.0 Future Tenants & Building Uses ............................................................................ 20
7.0 Reporting .................................................................................................................. 21

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Figures
Figure 1 Site Location Map
Figure 2 Site Map
Figure 3 Site Development Plan

Appendices

Appendix A Historical Site Assessment Summary Tables and Figures
Appendix B VIMS Design Drawings (Sheets VM-1, VM-1A, VM-2, VM-2A, & VM-3)
Appendix C VIMS Product Specifications

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Vapor Intrusion Mitigation Plan – Phase 1 (Rev. 2) Sealand Contractors 515 Parkwood Avenue Charlotte, North Carolina Brownfields Project No. 25053-21-060 H&H Job No. SCF-004 1.0 Introduction

On behalf of 515 Parkwood, LLC (prospective Developer or PD), Hart & Hickman, PC (H&H)
has prepared this Vapor Intrusion Mitigation Plan (VIMP) for the proposed multi-family
apartment complex at the Sealand Contractors North Carolina Department of Environmental
Quality (DEQ) Brownfields property (Brownfields No. 25053-21-060) located at 515 Parkwood
Avenue in Charlotte, Mecklenburg County, North Carolina (Site or subject Site). The Site
consists of three (3) contiguous parcels (Mecklenburg County Parcel ID Nos. {PINs} 08304204,
08304206, and 08304212) that collectively total approximately 2.94 acres of land located in a
rapidly densifying area of the NoDa neighborhood in close proximity to uptown Charlotte and
the Lynx Blue Line light rail. A Site location map is provided as Figure 1, and the Site and
surrounding area are shown in Figure 2.

The Site is developed with three (3) buildings which include a warehouse, multi-tenant
commercial building, and a former auto body shop. The northwestern parcel (PIN 08304212) is
developed with an approximately 17,000 square foot (sq ft) warehouse building (Building 1); the
eastern parcel (PIN 08304206) is developed with an approximately 10,000 sq ft multi-tenant
commercial building (Building 2); and the southern parcel (PIN 08304204) is developed with an
approximately 7,000 sq ft former auto body shop building (Building 3). The remaining portions
of the Site consist of grassy and landscaped areas, access drives, and parking and construction
materials and equipment staging areas. The Site buildings are labeled in Figure 2.

Redevelopment plans include razing the existing Site buildings and grading to level the Site for
the construction of two mixed-use multi-story apartment buildings with ground level commercial
retail, amenity spaces, and an associated parking deck. The proposed redevelopment will be
completed in two development phases beginning with Phase I in northern portions of the Site,
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and Phase II in southern portions of the Site. Note, this VIMP is only for the Phase I portion of
the redevelopment known as Cordo, formerly known as 515 Parkwood Avenue, and a VIMP for
Phase II will be submitted under separate cover at a later date. A Site Development Map for
Phase I is included as Figure 3.

In July 2021, H&H completed a Phase I Environmental Site Assessment (ESA) for the Site as
part of initial property transaction due diligence activities. Results of the Phase I ESA identified
potential environmental concerns associated with known groundwater impacts upgradient of the
Site that are attributable to historical nearby off-Site operations. To address potential
environmental concerns and to ensure that the Site is safely redeveloped for its intended use, the
PD elected to enter the Site into the DEQ Brownfields Redevelopment Section. A Brownfields
Property Application for the Site was submitted to DEQ on July 12, 2021, and the Site received a
letter of eligibility dated February 9, 2022.

1.1 Site Background Information

Historically, the Site was developed with single-family residences and associated ancillary
structures (sheds, standalone garages, etc.) as early as the late 1920s. In the 1950s, a warehouse
building was constructed in the eastern portion of the Site at 1721 N. Davidson Street for rug
cleaning operations, and a warehouse building was constructed in the southern portion of the Site
on the 1709 N. Davidson Street Site parcel for sale and distribution of electrical fixtures. In the
mid-1960s, the northern portion of the Site was developed with portions of the current
warehouse building on the 515 Parkwood Avenue Site parcel for sale and distribution of steel.
Additions were constructed to each of the warehouse buildings overtime to the current
configuration. Select residences remained on the Site until the late 1980s, when commercial
operations became the primary use of the Site. Tenants at the Site have included an electrical
sales warehouse, an auto body shop, a carpet cleaning service, a restaurant, and retail sales
tenants.

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1.2 Previous Assessment Activities

In July 2021, H&H completed a Phase I ESA for the Site. Results of the Phase I ESA identified
the following environmental concern:

• The Parkwood Station Brownfields Property (Brownfields Project No. 20066-16-060) is
located adjacent to the northwest and topographically upgradient of the Site at 1700 N.
Brevard Street. According to information provided in available environmental
documents, results of groundwater assessment activities completed on the Parkwood
Station property in 2016 identified tetrachloroethene or PCE (up to 60 micrograms per
liter {µg/L}) and bis(2-ethylhexyl)phthalate (up to 5.0 µg/L) at concentrations above the
DEQ 2L Groundwater Quality Standards (2L Standards) of 0.7 µg/L and 3.0 µg/L,
respectively. Impacts identified in groundwater at the Parkwood Station property have
been attributed to historical operations in the nearby area.

The nearest groundwater samples with compound concentrations detected above the 2L
Standards were collected less than approximately 50 ft northwest and topographically
upgradient of the Site. Results of assessment activities indicate that the groundwater flow
direction at the Parkwood Station property is to the southeast and towards the Site.
Results of the Phase I ESA identified the potential for impact to the Site from known
groundwater contamination associated with historical operations on nearby off-Site
properties to be an environmental concern.

In September 2021, H&H completed soil, groundwater, and soil gas sampling activities at the
Site to evaluate the potential for impacts and risks associated with the proposed redevelopment.
Because the Site was being considered for eligibility into the DEQ Brownfields Redevelopment
Section at the time of the assessment activities, H&H designed the sampling approach to be
consistent with assessment activities typically requested by DEQ Brownfields. The sampling
activities and results are documented in the Phase II Environmental Site Assessment report dated
July 19, 2022. Copies of the data summary tables and a sample location map are included as
Appendix A. A brief summary of the sampling results is provided below.
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Soil Assessment
Soil samples were collected in areas of planned shallow soil disturbance during future
redevelopment activities. Laboratory analytical results indicated that trace levels of
benzo(a)pyrene (up to 0.77 milligram per kilogram [mg/kg]) were detected in shallow soil at
concentrations above the DEQ Residential Preliminary Soil Remediation Goal (PSRG), but
below the DEQ Industrial/Commercial PSRG. No other organic compounds were detected at
concentrations above the DEQ Residential and/or Industrial/Commercial PSRGs in the soil
samples collected at the Site. The concentrations of metals detected in soil samples collected at
the Site were generally consistent with both published and surrounding area background levels.

Groundwater Assessment
Groundwater samples were collected in upgradient and downgradient locations to evaluate the
potential for impacts associated with documented and undocumented release incidents at the Site
and on nearby off-Site properties. Groundwater sample laboratory analytical results identified
low levels of chloroform (up to 14.6 µg/L) at concentrations above the DEQ Residential and
Non-Residential Vapor Intrusion Groundwater Screening Levels (GWSLs), but well below the
2L Standards. No other organic or inorganic compounds were detected in groundwater at
concentrations above the DEQ 2L Standards or the DEQ Vapor Intrusion GWSLs.

Soil Gas Assessment
Soil gas assessment activities (interior and exterior) were completed at the Site to evaluate the
potential for structural vapor intrusion into the proposed Site buildings. Soil gas sample
laboratory analytical results identified the presence of several compounds at concentration above
the DEQ Residential and/or Non-Residential Vapor Intrusion Soil Gas Screening Levels
(SGSLs). Compounds detected above the SGSLs were primarily petroleum-related and appear
to be from a discrete location (sample SG-6) near Building 2 (see Figure 2) and are not
widespread across the Site. No chlorinated solvent compounds were detected in soil gas at
concentrations above the DEQ SGSLs with the exception of a low level of TCE (15 micrograms
per cubic meter [µg/m3]) which was detected in one sub-slab soil gas sample in the northwestern
portion of the property at a concentration slightly above the DEQ Residential SGSL of 14 µg/m3.
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To further evaluate potential vapor intrusion risks for the proposed Site buildings, H&H utilized
the DEQ Risk Calculator (January 2022) using the highest compound concentrations detected in
any soil gas sample to simulate a hypothetical “worst-case” scenario for residential use. The
results of the risk calculations indicate a potential for structural vapor intrusion into the proposed
building. However, the risk calculations are primarily driven by the concentrations of petroleum
compounds detected in one soil gas sample (SG-6) collected in the southeastern portion of the
Site near Building 2. This sample location is located outside of the proposed Phase I
development on the northern portion of the property. Based on the results of the previous
assessment activities at the Site, potential vapor intrusion for the Phase I development can be
mitigated through installation of an enhanced passive sub-slab venting system.

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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 vapor intrusion mitigation condition in the pending
Brownfields Agreement. Per the North Carolina Brownfields Property Reuse Act 130A-310.32,
a prospective developer, with the assistance of H&H for this project, is to provide 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 the
intrusion of subsurface vapors into building features 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, or alternative standards approved in
writing in advance by DEQ, and that a professional engineer licensed in North Carolina, as
evidenced by said engineer’s professional seal, is satisfied that the system has been designed so
as to be fully protective of public health within the meaning of NCGS 130A-310.32 (a)(2), from
known Brownfields Property contaminants.”

[SEAL]

Trinh DeSa North Carolina PE (#044470) Hart & Hickman, PC (#C-1269)
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2.0 Design Basis
The VIMS design drawings are included in Appendix B as Sheets VM-1, VM-1A, VM-2, VM-
2A, and VM-3 (dated April 2, 2024) and will be used to guide construction of the VIMS for the
Phase I redevelopment at the Site. The proposed Phase I redevelopment includes a multi-family
residential apartment building with a ground level parking garage and residential apartments
above referred to as Cordo. Based on the proposed redevelopment plan and structural details of
the ground floor parking garage, the slab-on-grade ground-floor enclosed areas include the
maintenance office, Stair 01 and Stair 02, elevator lobbies, and utility rooms. To reduce the
potential for structural vapor intrusion in these ground floor enclosed spaces, the VIMS will
operate as a sub-slab venting system that includes a network of horizontal sub-slab and vertical
above-slab riser piping that discharge above the building roofs. The utility rooms and loading
dock that aren’t designed as living spaces and will be infrequently used by workers will include
vapor barrier as a precautionary measure.

There is also a bicycle parking and wash room on the ground floor. This room will be open to
the parking deck and thus will be ventilated along with the parking deck. However, as this room
will be accessible to residential tenants, as a precautionary measure, the bike room will include
sub-slab venting and a vapor barrier as described in the following sections.

Note, Stair 01 and Lobby 003 will be constructed on a mat foundation, as shown on detail sheet
VM-2A, and therefore do not sit directly on sub-slab soil. The current building plans do not
include any proposed utilities or conduits that will penetrate the mat footings below these areas.
However, as a precautionary measure, VIMS sub-slab vent piping will be installed below the
concrete slab in these areas as depicted in the VIMS design drawings. There are no proposed
pour-back areas for this building.

The foundation of the buildings consists of columns and foundation mats throughout the ground
floor parking garage. Thickened footers are proposed at wall locations which separate the
parking areas and ground floor enclosed areas.

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2.1 Base Course Layer and Vapor Barrier

The VIMS includes placement of a minimum 4-inch base course stone (gravel) layer consisting
of high permeability stone (clean #57 stone, or similar high permeability stone approved by the
Engineer certifying the VIMP) below the concrete slabs of the buildings. A vapor liner (vapor
barrier) will be installed above the base course stone layer and directly beneath the slab. Please
note that the horizontal collection piping network will be installed within the base course stone
layer prior to placement of the vapor liner in the occupiable spaces. The horizontal vapor
collection piping is discussed further in Section 2.2 below.

The vapor barrier will consist of Vaporblock® Plus 20 (VBP20) manufactured by Viaflex, Inc.
(Viaflex), formerly known as Raven Industries. The vapor barrier will be installed per
manufacturer installation instructions (Appendix C). An equivalent vapor barrier may also be
used pending review and approval by the VIMS design engineer and DEQ.

Each vapor barrier manufacturer recommends select sealing agents (mastics, tapes, etc.) for their
product. Therefore, and in accordance with the manufacturer installation instructions, the use of
alternative vapor barrier products not approved by the manufacturers for sealing shall not be
used. The exterior edges of the vapor barrier will be attached and sealed to building footings, or
placed below the footers, and subsurface concrete features utilizing the tape and sealants
specified in the manufacturer instructions. Seams within the building footprint will have a
minimum of 12 inches of overlap and will be sealed with the tape specified in the manufacturer
instructions. In areas where the vapor barrier is sealed directly to concrete or concrete masonry
units (CMU), double-sided tapes (e.g. Viaflex Butyl-Seal or Drago-Tack Tape) or other sealants
approved by the manufacturer must be used. 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 to 12 inches of
patch extends beyond the damaged area. The seams of the patch will then be sealed using the
manufacturer recommended tape.

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In areas where multiple utility penetrations are present, such as utility banks, and the use of the
tape recommended by the manufacturer is not practical or deemed as “ineffective” by the
Engineer certifying the VIMP, an alternative sealant product specified by the vapor barrier
manufacturer will be used, such as Viaflex Pour-N-Seal™ or Condri Mastic. 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.

2.2 Horizontal Collection Piping and Vertical Riser Piping
Sub-slab venting below the ground floor occupiable spaces will be accomplished using
horizontal slotted or perforated collection piping installed in the gravel layer which will collect
vapor from beneath the ground floor slabs and discharge the vapors at the roof through vertical
riser piping. Sub-slab piping will consist of 3-inch diameter Schedule 40 (SCH 40) PVC piping
and fittings, unless otherwise specified in the VIMP. Above-slab piping will consist of 3-inch
SCH 40 PVC piping and fittings. The piping layout is shown on Sheets VM-1 and VM-1A, and
section details and specifications are shown on Sheets VM-2, VM-2A, and VM-3 (Appendix B).
Note that solid sections of VIMS piping, both below and above grade, shall maintain a minimum
1% slope toward slotted sections or open ends to drain potential condensation water. Product
specifications for the slotted horizontal collection piping are provided in Appendix C.

As an alternative to 3-inch diameter SCH 40 PVC horizontal piping, soil gas collector mat
manufactured by Radon Professional Discount Supply (Radon PDS) may be used for sub-slab
vapor collection piping. The Radon PDS soil gas collector mat is a polystyrene, plastic,
rectangular conduit with a geotextile fabric covering. The mat is 1 inch thick and 12 inches wide
and is specifically designed for collecting soil gas from below a building. If used, the soil gas
collector mat will be connected to the proposed 3-inch diameter vertical risers and footing
crossings using Radon PDS-manufactured riser connection fittings. In lieu of the soil gas
collector mat extending unprotected through concrete, solid PVC pipe must be used as a soil gas
collector mat conduit in locations of footings and thickened slab crossings. Product
specifications for the soil gas collector mat are provided in Appendix C.

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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 approved alternative by the Engineer
certifying the VIMP) 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 are not 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 must be inspected prior to covering risers.

An electrical junction box or outlet (120 VAC required) will be installed on the roof of each
building in locations that can be reached from exhaust discharge locations. The electrical
junction box or outlet will be used in the future should connection of an electrical fan be
warranted.

2.3 Monitoring Points

Monitoring points constructed with 2-inch diameter SCH 40 PVC will be installed as part of the
VIMS to conduct effectiveness testing (see Section 4.0), including vacuum influence
measurements and for the collection of sub-slab soil gas samples for laboratory analysis. The
monitoring point locations are shown on Sheet VM-1.

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In general, monitoring points are placed at remotely distant locations from vertical riser piping
locations and in representative areas of the ground floor occupiable areas. Product specifications
for the proposed floor cleanout covers are provided in Appendix C. In order to reduce volatile
organic compounds (VOCs) from construction materials in future sub-slab soil gas samples
submitted for laboratory analysis, the monitoring point components will be connected using
threaded connections or approved low VOC containing products (Section 2.5).

In the event that a monitoring point cannot be installed due to building component conflict or is
damaged/destroyed during construction, a replacement monitoring point can be constructed,
pending approval by the Engineer certifying the VIMP. The replacement point(s) shall consist of
one of the specified designs in the design drawings or a Cox Colvin Vapor Pin® installation if
necessary. DEQ will be notified in advance if monitoring points are relocated significantly in
relation to approved locations specified in the VIMP (i.e., if moved to a location in a different
mitigation area or section of slab).

2.4 General Installation Criteria

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

For each phase of construction (above and below slab), construction contractors and sub-
contractors shall use “low or no VOC” products, when possible. Furthermore, the construction
contractors shall not use products containing the compounds PCE or TCE. Prior to submittal of
a VIMS Installation Completion Report, the construction contractor and sub-contractors shall be
directed to provide safety data sheets (SDSs) for products and materials used during
construction. SDSs provided by the contractor and sub-contractors, including but not limited to
building products, will be included in the VIMS Installation Completion Report.

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Utility Trench Dams
The layout of the proposed Phase I development building includes open-air and ventilated
parking space comprising the majority of the ground floor. The potable water and sanitary lines
are currently proposed to enter the building within utility rooms located on the ground floor of
the parking garage which do not connect directly to livings spaces. Further, utilities for the
Phase I development aren’t currently proposed to run through the area of elevated petroleum
concentrations identified at sample location SG-6 (Section 1.2). Therefore, the use of utility
trench dams that sometimes can be used to prevent vapor migration along utility trenches are not
warranted for the Phase I development at 515 Parkwood Avenue known as Cordo.

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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.

Each component of the VIMS shall be inspected and approved by the Engineer certifying the
VIMP, or the Engineer’s designee, prior to being covered. Inspections will be combined, when
possible, depending on construction sequencing and schedule. The inspections will include field
logs and photographs for each section of slab. Locations where multiple penetrations are present
and where products such as Viaflex Pour-N-Seal™ are used will be photographed and noted on
the field logs. The contractor shall notify the Engineer certifying the VIMP, or his/her designee,
with a two-business day notice prior to a planned inspection, and H&H will provide a subsequent
two-business day notice to DEQ for the pending inspection.

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4.0 VIMS Effectiveness Testing
4.1 Influence Testing

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

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

4.2 Pre-Occupancy Sub-Slab Soil Gas Sampling

After VIMS installation, but prior to occupancy of the building, sub-slab soil gas samples will be
collected from each monitoring point to further evaluate the potential for structural vapor
intrusion. Five sub-slab soil gas samples are proposed from the ground floor at monitoring
points MP-1, MP-2, MP-3, MP-4, and MP-5. One duplicate sub-slab soil gas sample will be
collected during each sampling event using a laboratory-supplied “T” fitting for laboratory
QA/QC purposes.

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

The sub-slab soil gas samples will be collected using laboratory-supplied Summa canisters and
laboratory-supplied flow regulators calibrated with an approximate flow rate of 100 milliliters
per minute. The vacuum in the Summa canisters will be measured at the start and end of the
sampling event and will be recorded by sampling personnel. The vacuum in each canister at the
conclusion of the sampling event shall remain above 0 inches of mercury (inHg), with a target
vacuum of approximately 5 inHg. H&H understands that analytical results for a sample will not
be accepted by DEQ if internal vacuum for that sample reaches 0 inHg. The samples will be
submitted to a qualified laboratory under standard chain of custody protocols for full-list VOCs
by EPA Method TO-15, including naphthalene. The analytical laboratory will be instructed to
report vacuum measurements as received and J-flag concentrations for each sample. In addition,
H&H will request that the laboratory report compound concentrations to the lower of the
laboratory method detection limits or the DEQ DWM SGSLs to the extent possible.

4.3 Pre-Occupancy Indoor Air Sampling

The building is intended to be occupied shortly following completion and initialization of the
HVAC system. As discussed with DEQ, there is typically insufficient time before occupancy to
wait for the HVAC system to become operational prior to indoor air sampling. Therefore, the
pre-occupancy indoor air sampling event will be conducted following construction and
completion of the VIMS including a minimum of one week with operational turbine ventilators.
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Prior to indoor air sampling, H&H will obtain DEQ approval to proceed with the sampling and
provide a statement confirming that the portion of the building being sampled is substantially
complete (e.g., windows and doors installed and sealed) with no openings to outdoor air, which
could potentially bias the indoor air data in the area being sampled. During the pre-occupancy
sampling event, five indoor air samples (IAS-1 through IAS-5) will be collected at the locations
depicted on Sheet VM-1. The indoor air samples are proposed to be collected only during pre-
occupancy sampling, unless the data indicates additional post-occupancy indoor air sampling is
warranted. The indoor air samples will be co-located with the proposed sub-slab vapor samples
to evaluate potential vapor intrusion into the enclosed portions of the building.

The indoor air samples will be collected using individually-certified 6-liter stainless steel Summa
canisters connected to in-line flow controllers equipped with a vacuum gauge. The flow
controllers will be set by the laboratory to allow the samples to be collected over an
approximately 24-hour period for a residential use scenario as a conservative measure, even
though there are no residential livings spaces on the ground floor. The canisters will be set up so
that the sample intake point is positioned approximately 5 ft above grade (typical breathing zone
height). In addition, during each indoor air sampling event, one duplicate sample for laboratory
QA/QC and one background sample from an ambient air upwind location will be collected.
Prior to and after the indoor and background air samples are collected, vacuum in the canisters
will be measured using a laboratory-supplied vacuum gauge and recorded by sampling
personnel. A vacuum above 0 inHg and ideally around 5 inHg will be maintained within the
canisters at the conclusion of the sampling event.

The starting and ending vacuum in each canister will be recorded on the sample chain-of-
custody. Periodic checks will be conducted by sampling personnel to monitor the pressure
within the Summa canisters during sampling to ensure adequate sample volume is collected. The
sample canisters will then be labeled and shipped under standard chain-of custody procedures to
a qualified laboratory for analysis of select VOCs by EPA Method TO-15. The select compound
list will be based upon the compounds detected in previous soil, groundwater, and sub-slab soil
gas samples. The analytical laboratory will be instructed to report vacuum measurements at
receipt and J-flag concentrations for each sample. H&H will request that the laboratory report
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compound concentrations to the lower of the laboratory method detection limits or the DEQ
DWM Vapor Intrusion Indoor Air Screening Levels (IASLs) to the extent possible. In addition,
an Indoor Air Building Survey form (Appendix C of the DWM VI Guidance) will be completed
for each sampling event.

New construction materials such as paint, caulk, carpet, mastics, etc., which could be sources of
VOCs in indoor air, may cause interference with Site-specific compounds of concern during
indoor air sampling. As previously noted, the construction contractors will be requested to
provide SDSs for materials used during construction which will be submitted to DEQ, if needed
to further evaluate sub-slab and indoor air data.

4.4 VIMS Effectiveness Results

The results and analysis of the sub-slab soil gas and indoor air sampling will be submitted to
DEQ with the final VIMS Installation Completion Report (discussed in Section 6.0). After
receipt of the sub-slab soil gas and indoor air sample analytical results, H&H will use the most
recent version of the DEQ Risk Calculator to evaluate cumulative potential vapor intrusion risks
under a residential scenario. H&H will consider the VIMS effective if the calculated sub-slab
soil gas cumulative LICR is 1 x 10-4 or less for potential carcinogenic risks and the calculated
sub-slab soil gas cumulative HI is 1.0 or less for potential non-carcinogenic risks. The PD
acknowledges that DEQ may request additional sampling if Site contaminants of concern are
elevated, even if the risk calculations are acceptable.

In the event that calculated cumulative risks for a residential scenario exceed acceptable levels
for potential carcinogenic and/or noncarcinogenic risks as a result of structural vapor intrusion,
confirmation sub-slab soil gas or indoor air samples will be collected from the area of potential
concern. If an additional round of samples indicates results within acceptable risk levels, no
further pre-occupancy sampling will be conducted. If calculated cumulative risks continue to
exceed acceptable levels for potential carcinogenic risks (greater than 1x10-4) and/or potential
non-carcinogenic risks (above a Hazard Index of 1.0) as a result of structural vapor intrusion,
considerations will be made to convert the system from a passive system to an active system.
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The PD acknowledges that no portions of the proposed building will be occupied without written
approval from DEQ following the completion of pre-occupancy sampling activities.
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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
annular space. As such, differential pressure monitoring is not anticipated. If the VIMS is
converted to an active system based on pre-occupancy or post-occupancy sub-slab gas and/or
indoor air assessment results, proposed modifications to the VIMP including modifying the
VIMS design, testing and analytical sampling requirements, and details for long-term differential
pressure monitoring across the slab will be submitted to the DEQ Brownfields Redevelopment
Section for approval prior to implementation. The specific electric fans to be used will be
selected by the VIMS Engineer certifying the VIMP based on the results of the influence testing
discussed in Section 4.0.

Post-occupancy VIMS effectiveness monitoring will include semi-annual (twice per year) sub-
slab soil gas sampling at the locations indicated in Section 4.0 or as otherwise approved by DEQ.
Indoor air sampling is not proposed for post-occupancy testing, unless indoor air sampling is
warranted based on the analytical data and risk calculations. The VIMS Installation Completion
Report (Section 7.0) will include recommendations for whether post-occupancy indoor air
sampling is warranted for DEQ review and approval.

The first post-occupancy sampling event will be completed approximately 6 months after the
pre-occupancy sampling. If the post-occupancy sampling events indicate consistent or
decreasing concentrations within acceptable risk levels, a request to terminate or reduce
sampling requirements will be submitted for DEQ approval. DEQ written approval is required
prior to modifications to the sampling frequency and locations.
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6.0 Future Tenants & Building Uses
The future use of the proposed Site building includes multi-family residential apartments and
two retail spaces. After occupancy of the Site building, the building owner or property
management group will maintain or contract for maintenance of the vapor mitigation system. If
vapor mitigation components are damaged or need to be altered for building renovations, the
building management will be instructed to contact the maintenance department. The
maintenance department shall contact a NC PE to oversee or inspect the activities, and a report
shall be submitted to DEQ detailing the repairs or alterations. To aid in identification of the
vapor mitigation piping, the piping will be labeled with “Vapor Mitigation – Contact
Maintenance”, or similar language, on all accessible piping at intervals of no greater than 10
linear feet.

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

The pending Notice of Brownfields Property agreement for the Site is anticipated to include land
use restrictions that indicate the building(s) shall not be occupied until DEQ provides written
approval for the installation and performance of the VIMS as documented in the installation
report. However, we understand that DEQ may provide conditional compliance approval with
submittal of a data summary in lieu of the full VIMS Installation Completion Report based on
timing of the proposed building occupancy date and report review times.

After each semi-annual post-occupancy sub-slab vapor sampling event (and indoor air sampling,
if warranted), a report will be submitted to DEQ to document the sampling activities, results, and
recommendations.

USGS The National Map: National Boundaries Dataset, 3DEP ElevationProgram, Geographic Names Information System, National HydrographyDataset, National Land Cover Database, National Structures Dataset,and National Transportation Dataset; USGS Global Ecosystems; U.S.Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data;U.S. Department of State Humanitarian Information Unit; and NOAANational Centers for Environmental Information, U.S. Coastal ReliefModel. Data refreshed June, 2022.
SITE LOCATION MAP
SEALAND CONTRACTORS
515 PARKWOOD AVENUE
CHARLOTTE, NORTH CAROLINA
DATE: 5-8-23
JOB NO: SCF-004
REVISION NO: 0
FIGURE. 1
2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology
TITLE
PROJECT
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QUADRANGLE
7.5 MINUTE SERIES (TOPOGRAPHIC)
SITE
REVISION NO. 0
JOB NO. SCF-004
DATE: 5-8-23
FIGURE NO. 2
SEALAND CONTRACTORS
515 PARKWOOD AVENUE
CHARLOTTE, NORTH CAROLINA
SITE MAP
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
PARCEL BOUNDARY
SURFACE WATER FEATURE
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology
PARK
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NOTES:
1. AERIAL IMAGERY AND PARCEL DATA OBTAINED FROMMECKLENBURG COUNTY GIS (2023).
2. PIN = PARCEL IDENTIFICATION NUMBER
E. 21
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BROWNFIELDS PROPERTY PARCELS
NO.ADDRESS PIN
1 515 PARKWOOD AVENUE 08304212
2 1721 N. DAVIDSON STREET 08304206
3 1709 N. DAVIDSON STREET 08304204
BUILDING 1
BUILDING 3
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REVISION NO. 0
JOB NO. SCF-004
DATE: 08-28-23
FIGURE NO. 3
SEALAND CONTRACTORS
PARKWOOD AVENUE AND N. DAVIDSON STREET
CHARLOTTE, NORTH CAROLINA
SITE DEVELOPMENT PLAN - PHASE 1
515 PARKWOOD AVENUE
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
PROPOSED GROUND FLOOR ENCLOSED
AREAS
PROPOSED GROUND FLOOR OPEN-AIR /
VENTILATED PARKING
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
PAR
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NOTES:
1.PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY
GIS (2021).
2.TOPOGRAPHIC LIDAR DATA OBTAINED FROM
MECKLENBURG COUNTY GIS (2013).
3.SITE DEVELOPMENT BUILDING LAYOUT IS ESTIMATED
USING ARCHITECTURAL PLANS PROVIDED BY SHOOK
KELLEY. ACTUAL BUILDING LOCATION MAY VARY
SLIGHTLY; REFER TO CIVIL PLANS.
E. 2
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APPROXIMATE PHASE I
REDEVELOPMENT PLAN
BUILDING FOOTPRINT
PHASE II REDEVELOPMENT
PLAN (IN PROGRESS)
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Appendix A
Historical Site Assessment Summary Tables and Figures
Table 1
Summary of Phase II Assessment Soil Analytical Data
Sealand Contractors
Charlotte, North Carolina
H&H Job No. SCF-004
Evaluation Area
Sample ID COMP-2 COMP-3 COMP-4 SB-1
Date 9/13/2021 9/13/2021 9/13/2021 9/13/2021
Depth (ft bgs)0-2 0-2 0-2 4-6
Sample Type Composite Composite Composite Grab Range Range
Units
VOCs (8260D)
Acetone <0.0554 <0.0488 0.0972 J 0.158 <0.0447 <0.0530 14,000 210,000 ----
Benzene <0.0034 <0.0030 <0.0023 M1 0.0053 J <0.0028 <0.0033 1.2 5.4 ----
2-Butanone (MEK)<0.0414 <0.0365 <0.0281 0.0595 J <0.0334 <0.0397 5,500 40,000 ----
Ethylbenzene 0.0057 J 0.0044 J 0.0045 J 0.0096 0.0045 J <0.0038 6.1 27 ----
p-Isopropyltoluene <0.0042 <0.0037 <0.0029 0.0036 J 0.0043 J <0.0041 NE NE ----
4-Methyl-2-pentanone (MIBK)<0.0083 <0.0073 <0.0056 0.0131 J <0.0067 <0.0080 7,000 30,000 ----
Naphthalene 0.0238 0.0114 0.0273 0.0424 0.0162 <0.0043 2.1 8.8 ----
Toluene 0.0192 0.0169 0.0134 M1 0.0700 0.0053 J <0.0023 990 9,700 ----
1,2,4-Trimethylbenzene 0.0094 0.0050 J 0.0098 0.0136 0.0079 <0.0023 63 370 ----
1,3,5-Trimethylbenzene <0.0029 <0.0026 <0.0020 M1 0.0072 <0.0023 <0.0028 56 320 ----
m&p-Xylene 0.0230 0.0143 J 0.0185 0.0497 0.0128 J <0.0057 120 500 ----o-Xylene 0.0120 0.0076 J 0.0111 0.0258 0.0086 <0.0037 140 590 ----
SVOCs (8270E)Acenaphthylene <0.074 <0.063 <0.058 0.18 J <0.075 <0.072 NE NE -- --Benzo(a)anthracene 0.19 J 0.10 J 0.11 J 0.67 <0.069 <0.065 1.1 21 ----Benzo(a)pyrene 0.20 J 0.11 J 0.13 J 0.77 <0.076 <0.072 0.11 2.1 ----
Benzo(b)fluoranthene 0.25 0.15 J 0.18 J 0.96 <0.075 <0.071 1.1 21 ----Benzo(g,h,i)perylene 0.12 J <0.086 0.093 J 0.44 J <0.10 <0.099 NE NE ----Benzo(k)fluoranthene 0.099 J 0.056 J 0.068 J 0.37 J <0.067 <0.064 11 210 ----Bis(2-Ethylhexyl)phthalate <0.082 <0.069 <0.064 0.70 J 0.38 J <0.079 39 160 ----Chrysene 0.19 J 0.096 J 0.095 J 0.66 <0.071 <0.068 110 2,100 ----Fluoranthene 0.37 0.20 J 0.18 J 0.86 <0.079 <0.075 480 6,000 ----Indeno(1,2,3-cd)pyrene 0.15 J <0.093 0.086 J 0.50 <0.11 <0.11 1.1 21 ----Naphthalene 0.0238 0.0114 0.0273 0.0424 0.0162 <0.0043 2.1 8.8 ----Phenanthrene 0.25 0.14 J 0.093 J 0.30 J <0.078 <0.074 NE NE ----Pyrene 0.31 0.17 J 0.17 J 0.96 <0.079 <0.075 360 4,500 ----
Metals (6020B/7471B/7199)Arsenic 2.99 2.81 8.90 2.39 2.40 1.44 0.68 3.0 1.0 - 18 1.1 - 3.0Barium82.5 71.0 67.2 59.4 72.7 34.2 3,100 47,000 50 - 1,000 38 - 110Cadmium0.198 J 0.174 J 0.157 J 0.134 J 0.209 J <0.103 1.4 20 1.0 - 10 ND - 0.36 JChromium (total)26.6 21.0 36.5 20.8 15.3 11.7 NE NE 7.0 - 300 14 - 45Chromium (VI)0.660 J 0.646 J 1.42 0.701 J 1.28 0.472 J 0.31 6.5 NS 0.34 J - 0.98 JChromium (III)25.9 20.4 35.1 20.1 14.0 11.2 23,000 350,000 NS 13.7 - 44.0Lead53.7 56.3 55.0 23.2 50.8 15.2 400 800 ND - 50 11 - 36Mercur0.120 0.104 0.0631 0.0525 0.0670 0.0292 J 4.7 70 0.03 - 0.52 0.024 J - 0.097Selenium0.711 J 0.560 J 0.558 J 0.449 J 0.490 J 0.495 J 78 1,200 <0.1 - 0.8 ND
Silver 0.107 J <0.103 <0.118 <0.106 <0.0990 <0.105 78 1,200 ND - 5.0 (3)0.033 J - 0.60
Notes:
1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) dated January 2023.2) Range values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005; Cd and Ag concentrations were taken from Southeastern and Conterminous U.S. Soils.
3) Background metals established for the from Cotton Warehouse Brownfields property (Brownfields Project No. 24013-20-060)Soil concentrations are reported in milligrams per kilogram (mg/kg).Compound concentrations are reported to the laboratory method detection limits.
Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.
Composite soil samples that were analyzed for VOCs were collected from undisturbed portions of soil and placed directly into laboratory supplied glassware. Bold values exceed the Residential PSRGs and background values in the case of metals. VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; ft bgs= feet below ground surface; NA = not analyzed; NS = not specified; NE = not established; -- = not applicable; ND = not detected
J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. M1 = Matrix spike exceeded the quality control limits, however the batch was accepted based on laboratory control sample recovery.
Nearby Brownfield
Property (3)
Composite
0-2
COMP-1/SOIL-DUP
Residential
PSRGs (1)
Industrial/
Commercial
PSRGs (1)
Regional (2)9/13/2021
Areas of Planned Soil Disturbance Screening Criteria
mg/kg
Background Metals
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Table 1 (Page 1 of 1)
Hart & Hickman, PC
Table 3
Summary of Well Construction and Groundwater Elevation Data
Sealand Contractors
Charlotte, North Carolina
H&H Job No. SCF-004
Well ID TOC Elevation (ft)Ground Surface
Elevation (ft)
Total Well Depth
(ft TOC)Screen Interval (ft) Static Depth to
Groundwater (ft TOC)
Groundwater Elevation
(ft TOC)
Groundwater Elevation
(ft bgs)
TMW-1 100.00 98.99 22.00 7-22 10.93 89.07 88.06
TMW-2 103.24 101.83 24.00 9-24 13.81 89.43 88.02
TMW-3 88.09 87.57 21.00 6-21 8.88 79.21 78.69
TMW-4 83.13 82.04 23.00 7-23 10.34 72.79 71.70
Notes:Depth to groundwater measurements collected by H&H on September 14, 2021.
Temporary monitoring well elevations were surveyed by H&H relative to an arbritary datum of 100' set at the TOC at TMW-1 TMW = temporary monitoring well; TOC = top of casing; ft = feet; bgs = below ground surface
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6/14/2023
Table 3 (Page 1 of 1)
Hart & Hickman, PC
Table 4
Summary of Groundwater Analytical Data
Sealand Contractors
Charlotte, North Carolina
H&H Job No. SCF-004
Evaluation Area Cross-Gradient Downgradient
Sample ID TMW-1 TMW-3 TMW-4
Date 9/14/2021 9/14/2021 9/14/2021
Units
VOCs (8260D)
Chloroform <0.43 14.4 14.6 <0.43 <0.43 70 0.81 3.6
Toluene <0.48 0.52 J 0.54 J 0.92 J <0.48 600 3,800 16,000
SVOCs (8270E)
Di-n-butylphthalate <0.453 <0.453 <0.453 <0.453 1.79 J NE ----
Diethylphthalate <0.287 0.384 J 0.370 J <0.287 1.74 J 6,000 ----
Metals (6020B/7470A)----
Arsenic <0.180 <0.180 <0.180 0.316 J 0.254 J 10 ----
Barium 39.8 36.3 35.6 69.5 28.5 700 ----
Cadmium <0.150 <0.150 <0.150 <0.150 <0.150 2 -- --
Chromium (Total)<1.24 1.56 J <1.24 <1.24 <1.24 10 ----
Lead 2.92 <0.849 <0.849 <0.849 <0.849 15 ----
Mercury <0.100 <0.100 <0.100 <0.100 <0.100 1 0.18 0.75
Selenium <0.300 0.609 J 0.568 J <0.300 1.02 J 20 ----
Silver <0.0700 <0.0700 <0.0700 <0.0700 <0.0700 20 ----
Notes:
1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.
2) DEQ Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2023.
Concentrations are reported in micrograms per liter (µg/L).
Compound concentrations are reported to the laboratory method detection limits.
Laboratory analytical methods are shown in parentheses.
With the exception of metals, only constituents detected in at least one sample are shown in the table above.
Bold values exceed the Residential Vapor Intrusion GWSLs.
Underlined values exceed the Non-Residential Vapor Intrusion GWSLs.
VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; -- = not applicable
J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.
µg/L
Screening Criteria
2L Standards(1)Non-Residential
GWSLs(2)
Residential
GWSLs(2)
Upgradient
TMW-2/GW-DUP
9/14/2021
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6/13/2023
Table 4 (Page 1 of 1)
Hart & Hickman, PC
Table 5A
Summary of Soil Gas Analytical Data
Sealand Contractors
Charlotte, North Carolina
H&H Job No. SCF-004
Evaluation Area
Sample ID SG-1 SG-2 SG-3 SG-4 SG-5 SG-6 SG-8
Sample Date 9/15/2021 9/15/2021 9/14/2021 9/14/2021 9/15/2021 9/15/2021 9/15/2021
Sample Type
Units
OCs (TO-15)
Acetone <11 <11 <11 <11 <11 <11 35 76 55 NE NE
Benzene 160 44 85 11 13 32 5.6 5.6 25 12 160
2-Butanone (MEK) 18 J 3.9 J 39 <2.0 22 J <2.0 8.0 J 20 J 8.5 J 140 440,000
Carbon Disulfide 880 <1.6 450 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 4,900 61,000
Carbon Tetrachloride 2.9 <0.38 <0.38 <0.38 <0.38 <0.38 <0.38 <0.38 <0.38 16 200
Chloroethane 11 <0.39 13 <0.39 <0.39 <0.39 <0.39 <0.39 <0.39 28,000 350,000
Chloroform 460 170 160 <0.24 15 <0.24 18 17 38 4.1 53
Chloromethane 27 <0.17 37 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 630 7,900
Cyclohexane 56 13 59 30 46 350 <0.46 <0.46 20 42,000 530,000
Dichlorodifluoromethane (Freon 12)<0.30 <0.30 2.9 <0.30 57 <0.30 <0.30 <0.30 <0.30 700 8,800
cis-1,2-Dichloroethylene <0.27 <0.27 <0.27 <0.27 <0.27 5.1 <0.27 <0.27 <0.27 280 3,500
1,2-Dichloropropane <0.33 <0.33 <0.33 <0.33 <0.33 11 <0.33 <0.33 <0.33 25 330
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)<0.48 <0.48 <0.48 <0.48 5,200 <0.48 <0.48 <0.48 <0.48 NE NE
Ethanol 42 32 36 <4.6 54 700 57 59 75 NE NE
Ethyl Acetate <4.3 <4.3 L-03, V-34 <4.3 <4.3 <4.3 <4.3 <4.3 L-03, V-34 <4.3 L-03, V-34 <4.3 L-03, V-34 490 6,100
Ethylbenzene 300 120 60 21 25 1,000 7.6 7.1 18 37 490
4-Ethyltoluene 81 38 <0.30 <0.30 5.9 570 4.7 <0.30 8.6 NE NE
Heptane 120 20 150 <0.34 13 130 8.9 7.7 15 2,800 35,000
Hexane 81 <2.3 140 24 J 51 350 <2.3 <2.3 <2.3 4,900 61,000
Isopropanol <4.5 <4.5 20 <4.5 <4.5 74 5.1 J 16 J 5.7 J 1,400 18,000
Methylene Chloride <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 3,400 53,000
Naphthalene 5.4 V-35 14 3.3 V-35 1.5 V-35 2.5 V-35 17,000 35 1.8 4.8 2.8 36
Propene 130 <1.2 420 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 21,000 260,000
Styrene <0.27 3.6 2.8 0.89 <0.27 220 1.6 0.70 J 2.9 7,000 88,000
Tetrachloroethylene 18 16 7.2 <0.40 <0.40 <0.40 16 16 10 280 3,500
Tetrahydrofuran <1.5 <1.5 <1.5 <1.5 12 <1.5 <1.5 <1.5 <1.5 14,000 180,000
Toluene 2,600 620 860 330 260 710 35 32 82 35,000 440,000
1,1,1-Trichloroethane <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 35,000 440,000
Trichloroethylene 3.8 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 14 180
Trichlorofluoromethane (Freon 11)1.6 J 1.9 J 3.2 J <0.45 <0.45 <0.45 2.3 J 2.3 J 2.1 J NE NE
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)<0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 35,000 440,000
1,2,4-Trimethylbenzene 190 76 7.7 7.2 21 4,000 20 12 20 420 5,300
1,3,5-Trimethylbenzene 58 26 3.5 2.5 <0.27 2,700 6.8 2.9 5.9 420 5,300
Vinyl Chloride 4.9 <0.20 2.1 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 5.6 280
m&p-Xylene 980 350 150 62 82 2,900 22 17 56 700 8,800
o-Xylene 350 120 45 22 30 1,700 9.5 7.5 21 700 8,800
Notes:
1) North Carolina Department of Environmental Quality (DEQ) Vapor Intrusion Sub-Slab & Exterior Soil Gas Screening Levels (SGSLs) dated January 2023.
Concentrations are reported in micrograms per cubic meter (µg/m ).
Compound concentrations are reported to the laboratory method detection limits.
Laboratory analytical method is shown in parentheses.
Only compounds detected in at least one sample are shown in the above table.
Bold values indicate an exceedance of Residential Vapor Intrustion SGSL.
Underlined values indicate an exceedance of Non-Residential Vapor Intrustion SGSL.
VOCs = volatile organic compounds; NE = not established
E = Reported concentration was detected above the laboratory instrument calibration range.
J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.
V-34 = Initial calibration verification did not meet method specifications and was biased on the low side resulting in an estimated reported result.
V-35 = Initial calibration verification did not meet method specifications and was biased on the high side resulting in an estimated reported result.
L-03 = Laboratoy fortified blank control sample recovery is outside control limits resulting in a reported value likely biased low.
µg/m3
SG-7/SG-DUP Screening Criteria
Residential
SGSLs(1)
9/15/2021
Exterior Soil Gas
Proposed Building Footprint
Non-Residential
SGSLs(1)
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6/13/2023
Table 5A (Page 1 of 1)
Hart & Hickman, PC
Table 5B
Summary of Soil Gas Analytical Data
Sealand Contractors
Charlotte, North Carolina
H&H Job No. SCF-004
Evaluation Area Building 2
Sample ID SSV-1 SSV-2 SSV-3 SSV-4
Sample Date 9/15/2021 9/15/2021 9/15/2021 9/15/2021
Sample Type
Units
VOCs (TO-15)
Acetone 570 44 180 59 NE NE
Benzene 0.82 1.2 <0.15 0.68 12 160
2-Butanone (MEK)13 J 4.4 J 5.3 J 2.8 J 140 440,000
Carbon Disulfide <1.6 <1.6 <1.6 <1.6 4,900 61,000
Carbon Tetrachloride <0.38 <0.38 <0.38 <0.38 16 200
Chloroethane <0.39 <0.39 <0.39 <0.39 28,000 350,000
Chloroform <0.24 <0.24 <0.24 1.1 4.1 53
Chloromethane <0.17 <0.17 <0.17 <0.17 630 7,900
Cyclohexane 7.8 <0.46 4.9 9.4 42,000 530,000
Dichlorodifluoromethane (Freon 12)3.3 <0.30 3.3 <0.30 700 8,800
cis-1,2-Dichloroethylene <0.27 <0.27 <0.27 <0.27 280 3,500
1,2-Dichloropropane <0.33 <0.33 <0.33 <0.33 25 330
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)<0.48 <0.48 <0.48 <0.48 NE NE
Ethanol 1,400 300 590 190 NE NE
Ethyl Acetate <4.3 L-03, V-34 <4.3 L-03, V-34 4.9 J, L-03, V-34 <4.3 L-03, V-34 490 6,100
Ethylbenzene 3.7 1.1 2.9 0.33 J 37 490
4-Ethyltoluene 3.6 <0.30 32 <0.30 NE NE
Heptane <0.34 <0.34 <0.34 <0.34 2,800 35,000
Hexane <2.3 <2.3 <2.3 <2.3 4,900 61,000
Isopropanol 73 23 24 6.6 J 1,400 18,000
Methylene Chloride <1.6 <1.6 2.4 J 5.5 J 3,400 53,000
Naphthalene 2.4 1.8 2.7 0.94 J 2.8 36
Propene <1.2 <1.2 <1.2 <1.2 21,000 260,000
Styrene 2.0 <0.27 1.4 <0.27 7,000 88,000
Tetrachloroethylene 2.0 1.6 19 2.4 280 3,500
Tetrahydrofuran <1.5 <1.5 <1.5 <1.5 14,000 180,000
Toluene 3.6 2.8 4.2 0.66 J 35,000 440,000
1,1,1-Trichloroethane <0.50 <0.50 <0.50 2.8 35,000 440,000
Trichloroethylene 15 <0.40 <0.40 <0.40 14 180
Trichlorofluoromethane (Freon 11)2.0 J 1.4 J 2.6 J 1.6 J NE NE
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)0.77 J <0.54 0.74 J <0.54 35,000 440,000
1,2,4-Trimethylbenzene 13 3.6 160 <0.29 420 5,300
1,3,5-Trimethylbenzene 3.2 0.83 J 55 <0.27 420 5,300
Vinyl Chloride <0.20 <0.20 <0.20 <0.20 5.6 280
m&p-Xylene 13 5.3 17 1.1 J 700 8,800
o-Xylene 4.5 3.6 19 0.89 700 8,800
Notes:
1) North Carolina Department of Environmental Quality (DEQ) Vapor Intrusion Sub-Slab & Exterior Soil Gas Screening Levels (SGSLs) dated January 2023.
Concentrations are reported in micrograms per cubic meter (µg/m ).
Compound concentrations are reported to the laboratory method detection limits.
Laboratory analytical method is shown in parentheses.
Only compounds detected in at least one sample are shown in the above table.
Bold values indicate an exceedance of Residential SGSL.
Underlined values indicate an exceedance of Non-Residential SGSL.
VOCs = volatile organic compounds; NE = not established
E = Reported concentration was detected above the laboratory instrument calibration range.
J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.
V-34 = Initial calibration verification did not meet method specifications and was biased on the low side resulting in an estimated reported result.
L-03 = Laboratoy fortified blank control sample recovery is outside control limits resulting in a reported value likely biased low.
Non-Residential
SGSLs (1)
Screening Criteria
µg/m3
Building 1
Interior Sub-Slab Soil Gas
Residential
SGSLs (1)
C:\Users\rmcgee\Desktop\Data Tables_Sealand Contractors ‐ Copy
6/13/2023
Table 5B (Page 1 of 1)
Hart & Hickman, PC
684
68
8
688
686
682 680
678
676
674
672
670
678
690
692
694
668
666
664
662 660
REVISION NO. 0
JOB NO. SCF-004
DATE: 6/14/23
FIGURE NO. 3
SEALAND CONTRACTORS
PARKWOOD AVENUE AND N. DAVIDSON STREET
CHARLOTTE, NORTH CAROLINA
SAMPLE LOCATION MAP
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
PARCEL BOUNDARY
SURFACE WATER FEATURE
TOPOGRAPHIC CONTOUR (FT MSL)
PROPOSED RETAIL AND AMENITY BUILDINGFOOTPRINT
TEMPORARY MONITORING WELL LOCATION
CO-LOCATED TEMPORARY MONITORINGWELL AND ALIQUOT SOIL BORING LOCATION
SUB-SLAB SOIL GAS POINT
SOIL GAS POINT AND ALIQUOT SOIL BORINGLOCATION
SOIL GAS POINT AND SOIL BORING LOCATION
ALIQUOT SOIL BORING LOCATION
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology
PAR
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NOTES:
1. PARCEL DATA OBTAINED FROM MECKLENBURG COUNTYGIS (2021).
2. TOPOGRAPHIC LIDAR DATA OBTAINED FROM
MECKLENBURG COUNTY GIS (2013).
3. SITE DEVELOPMENT PLAN PROVIDED BY SHOOK KELLEY,DATED 7-26-21.
E. 21
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BUILDING 3
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TMW-3
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Appendix B
VIMS Design Drawings (Sheets VM-1, VM-1A, VM-2, VM-2A, & VM-3)
(dated April 3, 2024)
UP
UP
UP
UP
UP
UP
UP
CLEANOUT
CLEANOUT
DN
TRANSTRANSTRANSTRANS
UP
UP
UP
DOG WASH
001
ELEV 03
LOBBY
003ELEV 02
STAIR 01
005
TRASH
004
TOILET
008
MDF
006
TRASH
004a
MAINT
007
BACKFLOW
012
TRASH RETAIL
014
70 BICYCLE PARKING-WASH
013
ELECTRICAL
017
LOBBY
010
GENERATOR
016
STAIR 02
011
ELEV 01
LOADING
002
GREASE TRAPS
009
PUMP & RISER ROOM
015
R-1
R-2
R-3
R-4
R-5
MP-1
MP-3
MP-4
MP-6
MP-5
MP-2
VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
GROUND LEVEL
VM-1
PROFESSIONAL
APPROVAL
LEGEND
EXTENT OF VAPOR BARRIER
HORIZONTAL COLLECTION PIPING
3" DIA SCH 40 SOLID PVC PIPE
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH EXHAUST IDENTIFICATION NUMBER
2" DIA SOLID PVC PRESSURE MONITORING POINT WITH FLUSH-MOUNTED COVER
PROPOSED INDOOR AIR SAMPLE LOCATION DURING PRE-OCCUPANCY TESTING
MP-1
R-1
H&H NO. SCF-004
DEVELOPER:
SPACECRAFT
436 EAST 36TH STREET
CHARLOTTE, NORTH
CAROLINA 28205
CO
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IAS-2
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IAS-1
INSTALL PIPE WITHIN 2X6
WALL ON UPPER FLOORS
INSTALL RISER
WITHIN 2X6 WALL
MAT FOOTER LOCATED
BELOW ELEVATORS. SEE
DETAIL 16/VM2A
3
VM-2
3
VM-2
3
VM-2
PARKING
12
VM-2A
12
VM-2A
12
VM-2A
MAT FOOTING LOCATED
BELOW STAIRWELL. SEE
DETAIL 17/VM-2A.
14
VM-2A
5
VM-2
8
VM-2
14
VM-2A
14
VM-2A
DRILL ONE 1/2" DRAINAGE
HOLE IN BOTTOM OF SOLID
SECTION OF PIPE
IAS-4
IAS-5
BIKE AREA IS OPEN TO PARKING
DECK AND VENTILATED ALONG
WITH PARKING DECK
POSITION MONITORING
BELOW STAIR LANDING IN
ACCESSIBLE LOCATION
7
VM-2
DATE: 04-03-24
REVISIONS
REV DATE DESCRIPTION
0 9/12/23 INITIAL DEQ SUBMITTAL
1 04/03/24 REV 1 DEQ SUBMITTAL
04/03/24
IAS-3
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.
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w
g
1,673.3 sq ft
832.2 sq ft
UP
UP
DOWN
UP
DOWN
UP
DOWN
UP
DOWN
DN
MW
DN
MW

MW
MW

TR
A
N
S
I
T
SEATING
WO
R
K
MEET & EAT
CALL
MEET
MEET
CALL
SE
A
T
I
N
G
UP
DN
UP
UP
DN
REF.
DW-A
W-D
REF.
DW
W-D
RE
F
.
DW
W-D
DW
RE
F
.
W-D
REF-M
W-D
DW
RE
F
.
DW
W-D
REF.
DW
W-D
REF.
DW
W-D
DW
REF-M
W-D
DW
REF-M
W-D
DW
REF-M
W-D
DW
REF-M
W-D
DW
REF-M
W-D
DW
REF-M
W-D
CO
R
R
I
D
O
R
10
5
CORRIDOR
108
2-2-18
136
0-1-1
144
0-1-1
140
1-1-1 Type A
138
0-1-1
142
ELECT
106
0-1-1
139
LOBBY
103
ELEV 03ELEV 02
UTILTY
102
1-1-1
137
0-1-1
143
STAIR 01
107
TRASH
104
0-1-1
141
2-1-22
145
2-1-3
102
2-1-1
147
0-1-3
146
3-2-2
101
RE
F
.
W-D
RE
F
.
W-D
DW
DW
RE
F
-
M
W-D
DW
RE
F
-
M
W-D
DW
RE
F
-
M
W-D
DW
RE
F
-
M
W-D
DW
RE
F
-
M
W-D
DW
RE
F
.
W-D
DW
RE
F
.
W-DDW
RE
F
.
W-D
RE
F
.
W-D
RE
F
.
W-D
RE
F
.
W-D
RE
F
.
W-D
RE
F
.
W-D
RE
F
.
W-D
RE
F
.
W-
D
0-1-5
134
0-1-5
129
1-1-4
1301-1-4
132
1-1-4
110
1-1-4
109
0-1-5
105
1-1-4
107
1-1-4+
108
0-1-5
103 1-1-4
104 3-2-7
106
0-1-5
135
1-1-4
133 3-2-7
131
DW DW
DW DW DW
DW
DW
REF-M-ADA
W-D
DW-A
RE
F
.
W-D
DW
RE
F
-
M
W-D
DW
RE
F
.
DW
W-D
REF.
DW
W-D
REF.
DW
W-D
F
STORAGE
115a
CORRIDOR
122
CO
R
R
I
D
O
R
11
7
ELECTRIC BIKE 8
-
3-2-2
124
1-1-1
123
0-1-2 Type A
120
2-1-1
122
3-2-7
1251-1-4
127
0-1-5
126
MEN
119
WOMEN
118
LOBBY
116
RE
F
R
E
S
H
M
E
N
T
S
12
0
SHARED LOBBY
121
MAIL (310-72)
110
FITNESS
115
PACKAGE
111
ELEV 01
LEASING
112
MANAGE
114
STAIR 02
123
RETAIL 02
RETAIL 01
DW
R-4
R-5
R-4
R-5
VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
FIRST LEVEL
VM-1A
PROFESSIONAL
APPROVAL
H&H NO. SCF-004
DEVELOPER:
SPACECRAFT
436 EAST 36TH STREET
CHARLOTTE, NORTH
CAROLINA 28205
CO
R
D
O

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2
5
0
5
3
-
2
1
-
0
6
0
INSTALL RISERS IN
STACKED 2X6 WALLS ON
UPPER FLOORS WITH
LIMITED OFFSETS AND
FITTINGS
INSTALL RISERS IN
STACKED 2X6 WALLS ON
UPPER FLOORS WITH
LIMITED OFFSETS AND
FITTINGS
INSTALL RISERS IN STACKED
2X6 WALLS ON UPPER
FLOORS WITH LIMITED
OFFSETS AND FITTINGS
R-1
R-2
R-3
LEGEND
3" DIA SCH 40 SOLID PVC PIPE
3" DIA SCH 40 SOLID PVC VERTICAL RISER
3" DIA SCH 40 SOLID PVC VERTICAL RISER - LOWER LEVEL LOCATION
NOTES:
VIMS EXHAUST SHALL BE A MINIMUM 10 FEET FROM AIR INTAKES AND OPERABLE
OPENINGS INTO THE BUILDING, AND A MINIMUM OF 4 FT FROM THE PARAPET OR
OTHER WALLS ON THE ROOF.
R-1
R-4
22
VM-2A
SHIFT VIMS RISER TO
CLOSEST 6" WALL ON
UPPER FLOORS
SHIFT VIMS RISER TO
CLOSEST 6" WALL ON
UPPER FLOORS
DATE: 04-03-24
REVISIONS
REV DATE DESCRIPTION
0 9/12/23 INITIAL DEQ SUBMITTAL
1 04/03/24 REV 1 DEQ SUBMITTAL
04/03/24
S:\
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D
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VIMS VAPOR BARRIER AND BASE COURSE (TYP)1
VAPOR BARRIER (SEE SPECIFICATION #2)
CONCRETE FLOOR SLAB
SUB-BASE
NTSVM-2
BASE COURSE - CLEAN # 57 STONE (WASHED
WITH NO FINES), MIN 4" THICK BENEATH VIMS
VAPOR BARRIER
SUB-BASE
SLOTTED COLLECTION PIPE (TYP)2
NTSVM-2
PVC TERMINATION SCREEN
(SEE SPECIFICATION #3)
CONCRETE FLOOR SLAB VAPOR BARRIER
(SPECIFICATION #2)
3" SCH 40 SOCKET-WELD SLOTTED PVC
PIPE SET WITHIN MIN 4" BASE COURSE
(SEE SPECIFICATION #3)
VIMS VAPOR BARRIER TERMINATION AT CMU WALL
NTS
3
VM-2
SUB-BASE
BASE COURSE
VAPOR BARRIER
VAPOR BARRIER SEALED TO
CMU OR CONCRETE PER
MANUFACTURER INSTRUCTIONS
(E.G. BUTYL-SEAL TAPE)
FULLY GROUTED
MASONRY WALL (VARIES)
OPEN-AIR
EXTERIOR
ENCLOSED
INTERIOR
MOISTURE BARRIER, BY
OTHERS
VIMS PIPING THROUGH FOOTING (TYP)
NTS
4
VM-2
CONCRETE
FLOOR SLAB
BASE COURSE
(SEE SPECIFICATION #1)
SUB-BASE
SOLID 3"
SCH 40 PVC
SOLID TO SLOTTED 3" SCH 40
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT)
VAPOR BARRIER (SEE
SPECIFICATION #2)
WALL (VARIES)
PIPE SLEEVE
THROUGH FOOTING
PIPE SLEEVE SHALL NOT
PENETRATE VAPOR
BARRIER (SEE
SPECIFICATION #12)
SLEEVE FOR FULL LENGTH OF PROJECTION
VAPOR BARRIER SEALED TO PIPE PER
MANUFACTURER INSTRUCTIONS (TYP)
CONCRETE
FLOOR SLAB
BASE COURSE
SUB-BASE
PIPE CONNECTOR THROUGH THICKENED FOOTING
NTS
5
VM-2
SOLID 3"
SCH 40 PVC
VAPOR BARRIER SEALED TO PIPE
PER MANUFACTURER
INSTRUCTIONS
WALL (VARIES)
OPEN-ENDED PIPE,
OR TERMINATION
SCREEN
PROVIDE PIPE SUPPORT AS NEEDED TO
PREVENT LOW POINT IN SOLID PIPE
VAPOR BARRIER
PIPE SLEEVE
(AS NEEDED, SEE SPECIFICATION #12)
VIMS AT INTERIOR COLUMN
NTS
9
VM-2
SUB-BASE
CONCRETE FLOOR SLAB
BASE COURSE
VAPOR BARRIER
CONCRETE COLUMN
CONCRETE FOOTING
VAPOR BARRIER SEALED OUTSIDE OF
CONCRETE COLUMN OR ISOLATION POCKET
PER MANUFACTURER INSTRUCTIONS
SEE DETAIL 8/VM-2
SEAL CONCRETE COLUMN
JOINT AND EXPANSION FORM
(SEE SPECIFICATION #2)
ISOLATION POCKET
PREFERRED METHOD - SEAL VAPOR
BARRIER DIRECTLY TO COLUMN
WHERE ISOLATION POCKET IS
LOCATED BELOW SLAB
VIMS AT EXTERIOR COLUMN
NTS
10
VM-2
CONCRETE
FLOOR SLAB
BASE COURSE
VAPOR BARRIER
CONCRETE COLUMN
SEE DETAIL 8/VM-2
PREFERRED METHOD - SEAL VAPOR
BARRIER DIRECTLY TO COLUMN
WHERE ISOLATION POCKET IS
LOCATED BELOW SLAB
VIMS AT COLUMNS - EXPANSION DETAIL
NTS
11
VM-2
CONCRETE COLUMN
CONCRETE FLOOR SLAB
COLUMN
EXPANSION FORM
(IF PRESENT)
VAPOR BARRIER (IF ISOLATION POCKET IS
PRESENT AT SLAB LEVEL)
APPLY SEALANT TO COLUMN AND EXPANSION
FORM (SEE SPECIFICATION #2) IF ISOLATION
POCKET IS PRESENT AT SLAB LEVEL
ISOLATION POCKET
PREFERRED METHOD - SEAL
VAPOR BARRIER TO COLUMN
WHERE ISOLATION POCKET IS
LOCATED BELOW SLAB
VIMS VERTICAL RISER DUCT PIPING AT WALL WITH FOOTING
NTS
6A
VM-2
BASE COURSE
SUB-BASE
WALL (VARIES)
SOLID TO SLOTTED 3" SCH 40
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT)
3" SCH 40 PVC RISER DUCT PIPE
(SEE SPECIFICATION #4, #5 & #6)
3" SCH 40 PVC 90
DEGREE ELBOW
PIPE SLEEVE VAPOR BARRIER
VAPOR BARRIER SEALED TO PIPE PER
MANUFACTURER INSTRUCTIONS
PROVIDE PIPE SUPPORT TO PREVENT
LOW POINT IN SOLID PIPE. MAINTAIN 1%
SLOPE TOWARD SLOTTED SECTION OF
PIPE (SEE SPECIFICATION #4)
SEE DETAIL 21
VIMS AT VERTICAL RISERS WITH 90 DEGREE ELBOW (TYP)
NTS
6
VM-1
BASE COURSE
SUB-BASE
3" SCH 40 PVC RISER DUCT PIPE
(SEE SPECIFICATION #4, #5 & #6)
WALL (VARIES)
3" SCH 40 PVC SLOTTED OR
PERFORATED VENT PIPE
VAPOR BARRIER SEALED TO PIPE PER
MANUFACTURER INSTRUCTIONS
VAPOR BARRIER
SUPPORT PIPE AS NECESSARY
PER BUILDING CODE
SEE DETAIL 21
VIMS VERTICAL RISER DUCT PIPING AT WALL WITH FOOTING
NTS
7
VM-2
BASE COURSE
SUB-BASE
WALL (VARIES)
SOLID TO SLOTTED 3" SCH 40
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT)
3" SCH 40 PVC 90
DEGREE ELBOW
PIPE SLEEVEVAPOR BARRIER
VAPOR BARRIER SEALED TO PIPE PER
MANUFACTURER INSTRUCTIONS
PROVIDE PIPE SUPPORT TO PREVENT
LOW POINT IN SOLID PIPE. MAINTAIN 1%
SLOPE TOWARD SLOTTED SECTION OF
PIPE (SEE SPECIFICATION #4)
OPEN-AIR
SPACE
ENCLOSED
INTERIOR
3" SCH 40 PVC RISER DUCT PIPE
(SEE SPECIFICATION #4, #5 & #6)
SUPPORT PIPE PER NC CODE
T.O.C.
CONCRETE
FLOOR SLAB
BASE COURSE
(SEE SPECIFICATION #1)
SUB-BASE
VIMS PIPING THROUGH INTERIOR GRADE BEAM WITH RISER DUCT PIPING (TYP)
NTS
8
VM-2
SOLID 3"
SCH 40 PVC
VAPOR LINER SEALED TO PIPE PER
MANUFACTURER INSTRUCTIONS
SINGLE OR DOUBLE STUD
SEPARATION WALL
PROVIDE PIPE SUPPORT TO PREVENT
LOW POINT IN SOLID PIPE. MAINTAIN 1%
SLOPE TOWARD SLOTTED SECTION OF
PIPE (SEE SPECIFICATION #2)
VAPOR LINER
(SEE SPECIFICATION #1)
SOLID TO SLOTTED 3" SCH 40
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT)
VAPOR LINER BENEATH
GRADE BEAM
3" SCH 40 PVC RISER DUCT PIPE
(SEE SPECIFICATION #3 & #4)
3" SCH 40 PVC TEE
FOAM PIPE SLEEVE (SEE
SPECIFICATION #11)
VIMS PIPING THROUGH DEPRESSIONS IN SLAB-ON-GRADE (TYP)
NTS
4A
VM-5
SUB-BASE
CONCRETE FLOOR SLAB
MINIMUM 1% SLOPE TOWARD
SLOTTED SECTIONS
BASE COURSE
SOLID TO SLOTTED 3" SCH 40
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT)
3" SCH 40 PVC
45-DEGREE ELBOW
VAPOR BARRIER SEALED TO
PIPE PER MANUFACTURER
INSTRUCTIONS
SOLID 3" SCH 40 PVCPIPE SLEEVE
(SEE SPECIFICATION #12)
WALL (VARIES)
VAPOR BARRIER
SLOPE
VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
CROSS SECTION
DETAILS #1-12
VM-2
PROFESSIONAL
APPROVAL
H&H NO. SCF-004
DEVELOPER:
SPACECRAFT
436 EAST 36TH STREET
CHARLOTTE, NORTH
CAROLINA 28205
CO
R
D
O

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N
O
.

2
5
0
5
3
-
2
1
-
0
6
0
DATE: 04-03-24
REVISIONS
REV DATE DESCRIPTION
0 9/12/23 INITIAL DEQ SUBMITTAL
1 04/03/24 REV 1 DEQ SUBMITTAL
04/03/24
S:\
A
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VIMS AT RETAINING WALL AT ENCLOSED INTERIORS (TYP)
NTS
13
VM-2A
SUB-BASE
BASE COURSE
VAPOR BARRIER
DRAIN, IF
PRESENT
VAPOR BARRIER SEALED TO OUTSIDE OF CONCRETE
AND WATERPROOFING MEMBRANE, IF PRESENT,
(DESIGNED BY OTHERS) PER MANUFACTURER
INSTRUCTIONS (SEE DETAIL 19/VM-2A)
OCCUPIED SPACE
OCCUPIED SPACE
WALL (VARIES)
VIMS AT RETAINING WALL ADJACENT TO OPEN AIR (TYP)
NTS
14
VM-2A
SUB-BASE
BASE COURSE
VAPOR BARRIER
DRAIN, IF
PRESENT
VAPOR BARRIER SEALED TO OUTSIDE OF
CONCRETE AND WATERPROOFING
MEMBRANE, IF PRESENT, (DESIGNED BY
OTHERS) PER MANUFACTURER
INSTRUCTIONS (SEE DETAIL 19/VM-2A)
OPEN-AIR SPACE
OCCUPIED SPACE
WALL (VARIES)
SIDEWALK
SLAB
VIMS AT FOOTING (TYP)
NTSVM-2A
15
CONCRETE FLOOR SLAB
VAPOR BARRIER SEALED TO CONCRETE
PER MANUFACTURERS INSTRUCTIONS
VAPOR
BARRIER
BASE COURSE
SUB-BASE
WALL (VARIES)
VIMS AT STAIRWELL WITH MAT FOUNDATION
NTS
17
VM-2A
VAPOR BARRIER SEALED TO
CONCRETE PER MANUFACTURER
INSTRUCTIONS
BASE COURSE
VAPOR BARRIER
OCCUPIED
SPACE
OPEN-AIR
SPACE
OPEN-AIR
SPACE
SUB-SLAB VENT PIPING
PLACED WITHIN STONE
LAYER - SEE SHEET VM-1
CONTINUOUS VAPOR
BARRIER SEALED PER
MANUFACTURER
INSTRUCTIONS
SUMP PIT
BASE COURSE
VAPOR BARRIER
VAPOR BARRIER SEALED TO
OUTSIDE OF CONCRETE AND
WATERPROOFING MEMBRANE (IF
PRESENT) PER MANUFACTURER
INSTRUCTIONS (SEE DETAIL
11/VM-A)
WATERPROOFING
MEMBRANE, IF PRESENT,
(DESIGNED BY OTHERS)
(SEE SPECIFICATION #13)
VAPOR BARRIER
ELEVATOR
PIT ELEVATOR
PIT
VIMS AT ELEVATOR BANK WITH MAT FOUNDATION
NTS
16
VM-2A
SUB-SLAB VENT PIPING
PLACED WITHIN STONE
LAYER - SEE SHEET VM-1
VIMS TURBINE VENTILATOR EXHAUST21
NTS
TURBINE VENTILATOR FAN
(EMPIRE MODEL TV04SS OR ENGINEER
APPROVED EQUIVALENT)
OUTDOOR-RATED ELECTRICAL JUNCTION BOX FOR
POTENTIAL FUTURE VACUUM FAN (REFER TO
SPECIFICATION #5)
RISER DUCT PIPE THROUGH ROOF
FLASHING
ROOFTOP
VM-2A
RUBBER NO-HUB
4" X 3" REDUCER
18
NTSVM-2A
VIMS AT ELEVATOR PIT
CONTINUOUS VAPOR
BARRIER SEALED PER
MANUFACTURER
INSTRUCTIONS
SUMP PIT
SUB-BASE
BASE COURSE
VAPOR BARRIER
SEE DETAIL 19/VM-2A
VAPOR BARRIER SEALED TO
OUTSIDE OF CONCRETE AND
WATERPROOFING MEMBRANE (IF
PRESENT) PER MANUFACTURER
INSTRUCTIONS (SEE DETAIL
19/VM-2A)
PILES (IF PRESENT)
SEAL VAPOR BARRIER TO PILE
IF PILES CONTACT BASE OF
ELEVATOR PIT
WATERPROOFING
MEMBRANE, IF PRESENT,
(DESIGNED BY OTHERS)
(SEE SPECIFICATION #13)
19
VM-2A
SOIL SUB-BASE
VAPOR BARRIER
DRAINAGE MAT
(IF PRESENT)
CONCRETE
NTS
VIMS AT ELEVATOR PIT AND RETAINING WALL - WATERPROOFING DETAIL
WATERPROOFING MEMBRANE (IF PRESENT) BY OTHERS
(SEE SPECIFICATION #13)
VIMS AT UTILITY BANK (TYP)20
NTSVM-2A
INSTALL VAPOR BARRIER AS
CLOSELY AS POSSIBLE TO EACH
PENETRATION PRIOR TO
APPLICATION OF SEALANT
SEALANT SET AROUND UTILITY BANKS
WITHIN DAM (e.g. RAVEN POUR 'N
SEAL WITH 2" MIN OVERLAP WITH
VAPOR BARRIER (SEE SPECIFICATION
#10)
SUB-BASE
BASE COURSE
VAPOR BARRIER CONCRETE SLAB
VIMS RISER OFF-SET
NTS
SEE DETAIL 21
(VENTILATOR EXHAUST)
SEE DETAILS 7, 7A, & 8
(VIMS RISER)
MIN 1% SLOPE TOWARD
EXTRACTION POINT
EXISTING CEILLING
TRUSSES
FLOOR ABOVE
PIPE SUPPORTS PER NC
BUILDING CODE
SOLID 3" SCH 40 PVC.
LENGTH VARIES, SLOPED
1/8" PER FOOT
3" SCH 40 PVC
90-DEGREE ELBOW
3" SCH 40 PVC
90-DEGREE ELBOW
22
VM-2A
FINISHED FLOOR SLAB
2" SCH 40 PVC SET WITHIN GRAVEL LAYER
2" DRAIN EXPANSION TEST PLUG
VIMS MONITORING POINT - TYPICAL DETAIL VIEW
NTS
12
VM-2A
VAPOR BARRIER PENETRATION SEALED TO
PIPE PER MANUFACTURER INSTRUCTIONS
2" SCH 40 PVC 90 DEGREE ELBOW
FLOOR CLEANOUT, ADJUSTABLE, 4" DIA ZURN
INDUSTRIES MODEL #CO2450-PV4 (OR ENGINEER
APPROVED EQUIVALENT) FLUSH WITH FINISHED FLOOR
BASE COURSE
4" x 2" FLUSH REDUCER
BUSHING
PVC TERMINATION SCREEN
(SEE SPECIFICATION #7)
VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VM-2A
PROFESSIONAL
APPROVAL
H&H NO. SCF-004
DEVELOPER:
SPACECRAFT
436 EAST 36TH STREET
CHARLOTTE, NORTH
CAROLINA 28205
CO
R
D
O

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5
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51
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A
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,

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.

2
5
0
5
3
-
2
1
-
0
6
0
VAPOR INTRUSION
MITIGATION SYSTEM
CROSS SECTION
DETAILS #13-23
DATE: 04-03-24
REVISIONS
REV DATE DESCRIPTION
0 9/12/23 INITIAL DEQ SUBMITTAL
1 04/03/24 REV 1 DEQ SUBMITTAL
04/03/24
S:\
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VAPOR INTRUSION MITIGATION
PLAN PREPARED BY:
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VAPOR INTRUSION
MITIGATION SYSTEM
SPECIFICATIONS
VM-3
PROFESSIONAL
APPROVAL
H&H NO. SCF-004
DEVELOPER:
SPACECRAFT
436 EAST 36TH STREET
CHARLOTTE, NORTH
CAROLINA 28205
CO
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VAPOR INTRUSION MITIGATION SYSTEM (VIMS)
SPECIFICATIONS
1.THIS VAPOR MITIGATION PLAN IS INTENDED TO BE USED FOR DIRECTION OF VIMS COMPONENT
INSTALLATION ONLY AND IS NOT INTENDED TO GUIDE CONSTRUCTION OF BUILDING
STRUCTURAL COMPONENTS. CONSTRUCTION CONTRACTOR SHALL VERIFY CONSISTENCY OF
VIMS DETAILS WITH APPLICABLE STRUCTURAL, ARCHITECTURAL, MECHANICAL, & PLUMBING
PLANS AND RESOLVE ANY INCONSISTENCIES PRIOR TO VIMS INSTALLATION. OBTAINING
COUNTY OR LOCAL JURISDICTIONAL BUILDING PERMITS RELATED TO THE VIMS SHALL BE THE
RESPONSIBILITY OF THE GENERAL CONTRACTOR (GC).
2.VIMS VAPOR BARRIER (LINER) SHALL BE VAPORBLOCK PLUS 20 (VBP20) 20-MIL VAPOR BARRIER
MANUFACTURED BY VIAFLEX, INC, FORMERLY KNOWN AS RAVEN INDUSTRIES.
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 TO FOOTERS, SLAB STEPS, RETAINING
WALLS, PENETRATIONS (SUCH AS PIPE PENETRATIONS), OR OTHER BUILDING
COMPONENTS WITHIN THE VIMS EXTENTS IN ACCORDANCE WITH THE MANUFACTURER
INSTALLATION INSTRUCTIONS . VAPOR BARRIER SHALL BE INSTALLED UNDER CMU WALLS
WHICH SUPPORT OCCUPIED ENCLOSED SPACES.
2.2.VAPOR BARRIER SHALL BE INSTALLED UNDER SLABS, ON WALLS, AND ALONG OTHER
STRUCTURAL COMPONENTS WHICH COME IN CONTACT WITH BOTH AN OCCUPIABLE
ENCLOSED SPACE AND SOIL. NOT ALL AREAS THAT REQUIRE 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. IF DRAINS OR OTHER
CONDITIONS REQUIRE CONCRETE REMOVAL, ADDITIONAL VIMS INSPECTIONS OF THE
REPAIRED AREAS ARE REQUIRED PRIOR TO THOSE AREAS BEING COVERED. THE UPFIT
CONTRACTOR MUST CONTACT THE DESIGN ENGINEER, OR ENGINEER'S DESIGNEE, TO
PERFORM THE INSPECTIONS DESCRIBED IN SPECIFICATION 11
2.4.VAPOR BARRIER SHALL EXTEND ALONG FOOTING EXTERIOR, IF POSSIBLE, AT LOCATIONS
WHERE EXTERIOR GRADE IS HIGHER THAN INTERIOR GRADE.
2.5.IN AREAS WITH EXPANSION BOARDS (E.G. ALONG COLUMNS), THE VAPOR BARRIER MUST
BE SEALED DIRECTLY TO THE CONCRETE WITH THE EXPANSION BOARD INSTALLED OVER
THE VAPOR BARRIER.
2.6.THE INTERFACE OF THE STEEL 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 PLUMBING CONTRACTOR(S) 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.
2.8.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.
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, SCH 40
PVC PERFORATED PIPE WITH 5/8" OR SMALLER DIAMETER PERFORATIONS, OR SOIL GAS
COLLECTOR MAT (1" X 12"), WITH SIMILAR AIR FLOW CHARACTERISTICS TO THE SLOTTED PIPE
MAY BE USED PENDING APPROVAL BY THE DESIGN ENGINEER. IF CIRCULAR PIPE IS USED, A PVC
TERMINATION SCREEN (WALRICH CORPORATION #2202052, OR SIMILAR) SHOULD BE
INSTALLED ON THE END OF PIPE.
3.1.SLOTTED COLLECTION PIPING SHALL BE SET WITHIN THE MINIMUM 4” BASE COURSE
LAYER, WITH A MINIMUM 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
EV04SS 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 LOCATIONS 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.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.
7.3.THE END OF THE PIPE SHALL BE AN OPEN PIPE OR PVC TERMINATION SCREEN PER APPROVAL
OF THE DESIGN ENGINEER.
7.4.A 4-INCH DIAMETER ADJUSTABLE FLOOR CLEAN-OUT (ZURN INDUSTRIES MODEL
#CO2450-PV4, OR EQUIVALENT) SHALL BE INSTALLED AND SET FLUSH WITH THE FINISHED
CONCRETE SURFACE, OR THE MONITORING POINT SHALL BE PLACED BEHIND A WALL
ACCESS PANEL PER THE DETAILS.
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.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.
9.1.HOLLOW FORMS OR CONDUITS THAT CONNECT THE SUB-SLAB ANNULAR SPACE TO
ENCLOSED ABOVE SLAB SPACES SHALL NOT BE PERMITTED.
9.2.AREAS OF UTILITY BANKS (e.g. MULTIPLE ADJACENT UTILITIES THROUGH THE SLAB) SHALL
BE SEALED TO CREATE AN AIR-TIGHT BARRIER AROUND THE UTILITY CONDUITS USING
RAVEN POUR N'SEAL PRIOR TO THE SLAB POUR. OTHER SEALANT METHODS IF USED
SHALL BE APPROVED BY THE DESIGN ENGINEER PRIOR TO APPLICATION.
10.INSPECTIONS: THE INSTALLATION CONTRACTOR(S) SHALL NOT COVER ANY PORTIONS OF THE
VIMS WITHOUT INSPECTION. INSPECTIONS OF EACH COMPONENT OF THE VIMS SHALL BE
CONDUCTED BY THE DESIGN ENGINEER, OR ENGINEER'S DESIGNEE, TO CONFIRM VIMS
COMPONENTS ARE INSTALLED PER THE APPROVED DESIGN. THE REQUIRED INSPECTION
COMPONENTS INCLUDE: (1) INSPECTION OF SUB-SLAB PIPING LAYOUT, (2) GRAVEL PLACEMENT,
AND (3) MONITORING POINT PLACEMENT PRIOR TO INSTALLING VAPOR BARRIER; (4) INSPECTION
OF VAPOR BARRIER PRIOR TO POURING CONCRETE; (5) INSPECTION OF ABOVE-GRADE PIPING
LAYOUT; AND (6) INSPECTION OF VENTILATOR AND RISER DUCT PIPE CONNECTIONS. INSPECTIONS
WILL BE COMBINED WHEN POSSIBLE DEPENDING ON THE CONSTRUCTION SEQUENCE/SCHEDULE.
THE CONSTRUCTION CONTRACTOR(S) SHALL COORDINATE WITH THE ENGINEER TO PERFORM THE
REQUIRED INSPECTIONS. A MINIMUM 2-BUSINESS DAY NOTICE SHALL BE GIVEN TO THE ENGINEER
PRIOR TO THE REQUIRED INSPECTION(S) WITH SUBSEQUENT NOTIFICATION PROVIDED TO DEQ.
10.1.THE INSPECTIONS DESCRIBED ABOVE ARE CONDUCTED FOR DEQ REQUIREMENTS AS
DETAILED IN THE VAPOR INTRUSION MITIGATION PLAN (VIMP). THESE INSPECTIONS ARE
SEPARATE FROM AND DO NOT WAIVE ANY LOCAL JURISDICTION (e.g. COUNTY OR CITY)
INSPECTION REQUIREMENTS RELATED TO THE BUILDING PLAN REVIEW, PERMITS, OR
BUILDING CODE AS WARRANTED BY THE LOCAL JURISDICTIONS. THE GENERAL CONTRACTOR
OR VIMS INSTALLERS SHALL COORDINATE WITH THE LOCAL JURISDICTIONS TO COMPLETE
INSPECTIONS RELATED TO PLAN REVIEW, PERMITS, OR BUILDING CODES THAT MAY BE
REQUIRED.
10.2.THE CONSTRUCTION CONTRACTOR(S) SHALL COORDINATE WITH THE ENGINEER TO PERFORM
THE REQUIRED INSPECTIONS. A MINIMUM 48-HOUR NOTICE (TWO BUSINESS DAY) 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.
10.3.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. GIVEN TO THE ENGINEER PRIOR TO THE REQUIRED
INSPECTION(S).
11.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.
12.IF POUR-BACK AREAS ARE PRESENT, THE VIMS PIPING, VAPOR BARRIER, AND MONITORING
POINTS SHALL BE PROTECTED BY THE INSTALLATION CONTRACTOR AND SUB-CONTRACTORS
THROUGHOUT THE PROJECT.
12.1.PROTECTIVE MEASURES (E.G., FLAGGING, PROTECTIVE BOARDS, ETC.) SHALL BE USED AS
NEEDED TO PREVENT DAMAGE TO THESE COMPONENTS.
12.2.THE MONITORING POINTS AND RISER DUCT PIPING MUST BE CAPPED WITH A REMOVABLE
SLIP-CAP OR PLUG IMMEDIATELY FOLLOWING INSTALLATION TO PREVENT WATER AND/OR
DEBRIS FROM ENTERING THE VIMS.
12.3.SIGNAGE THAT INDICATES PRECAUTIONS SHOULD BE TAKEN WHILE WORKING IN THE
AREAS WITH EXPOSED BARRIERS WILL BE POSTED IN PROMINENT LOCATIONS IN THE
AREAS OF TENANT SPACES.
12.4.ADDITIONAL VIMS INSPECTIONS OF THE POUR-BACK SPACES ARE REQUIRED DURING
TENANT UPFIT. THE UPFIT CONTRACTOR MUST CONTACT THE DESIGN ENGINEER, OR
ENGINEER'S DESIGNEE, TO PERFORM THE INSPECTIONS DESCRIBED IN SPECIFICATION 11.
DATE: 04-03-24
REVISIONS
REV DATE DESCRIPTION
0 9/12/23 INITIAL DEQ SUBMITTAL
1 04/03/24 REV 1 DEQ SUBMITTAL
04/03/24
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Appendix C
VIMS Product Specifications

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XYZ[\^XYZ[\_icbjbklmnbopdqrdsknpdiibcgdlotidicucdqscgdiduldcvwtxupwlbwdlcvyupkdiunquldtncdnqdquirktqdibnpvsnbclditicunxdsbqblcluniztiitbnspbnrdytcvuiodppuibcgdlwdljblzunxdxltcdltutinbctzwptdqblrtydnunquxckupcwptxuhtptcvtniwdxtjtxuwwptxuctbniunq}blxbnqtctbni{~€ ‚ƒ„…€†ƒ‡aˆ‰€ŠŠ€afƒ‡€‡fˆf‹ƒ faƒ‡‡ ˆŠ€€Ž‚f ˆ ŒŠˆ |f‡Šƒ ƒŠŠƒ fˆsnbrkuluncddbjiuctijuxcblvldikpcijlbzldptunxdkwbnxbncutndqiunqqtixputziuppptuhtptcvjblldikpctnrpbiiblquzurd{‚tztcdq‰ulluncvuyutpuhpducooo{ytujpd‘{xbz
ACCESSORIES
SEAMING TAPES & OTHER ACCESSORIES FOR PLASTIC SHEETING
Butyl Seal Tape (TP2BR / TP6BR)
Butyl Seal is a double-sided reinforced aggressive black butyl rubber tape used to join panels of polyethylene and polypropylene together by overlapping the edges and applying Butyl Seal in between. It is also used to adhere to concrete walls and footings when properly prepared. Butyl Seal is non-hardening and flexible. Available in 2” x 50’ and 6” x 50’ rolls.
R25B Tape (R25B)
R25B Tape is a single-sided aggressive synthetic elastomeric adhesive that bonds instantly to properly prepared polyethylene and polypropylene. The black polymer backing and adhesive is specially formulated to provide years of performance even in direct sunlight. A poly release liner provides for ease of installation. Available in 4” x 100’ roll.
ACCESSORY TAPES AND EPOXY
VaporBond™ Tape (TVB4)
VaporBond™ Tape is a white single-sided tape that combines a heavy-duty, weather-resistant polyethylene backing with an aggressive rubber adhesive. VaporBond™ Tape offers excellent seaming capabilities for our materials with an “Easy Tear” feature to reduce installation time. TVB4 has a WVTR of 0.18 perms per ASTM D3833. Typical applications include vapor retarders, covers and liners. Available in 4” x 210’ roll.
VaporSeal™ Tape (TVSP4/TVSP12)
VaporSeal™ Tape is a patent pending single-sided 7-layer gas barrier tape with a release liner for ease of installation. The backing contains a layer of highly impermeable EVOH designed to block migration of radon, methane, and VOC’s. An aggressive acrylic adhesive provides outstanding adhesion to polyethylene over a wide temperature range. Typical uses include joining, repairing and sealing gas/moisture barriers. Available in 4” x 160’ and 12” x 50’ rolls.
VaporBoot™ Tape (TBOOT)
VaporBoot™ Tape is a single-sided elastomeric butyl tape used to complete pipe boot installations (sealing the boot to the pipe). The 100% stretchable butyl adhesive features excellent adhesion values and 3-D stretching that can be easily molded to multiple surfaces without any creases and folds. Available in 2” x 16.4’ roll.
ADDITIONAL ACCESSORIES
VaporBoot™ System (VBOOT)
The VaporBoot™ System is designed to assist in securing pipe and other penetrations that run vertically through the vapor retarder material. The VaporBoot™ System offers a quick solution and is delivered to the jobsite in a complete package. VaporBoots are produced from high performance VaporBlock® material.
Package Contents: 25 - VaporBoots (18” x 18”, w/precut center marker) 1 Roll VaporBoot (TBOOT)Tape 2‘x16.4‘1 roll of Vapor Bond Tape (TVB4) 4‘x210
VaporBoot™ Plus Preformed Pipe Boots (VBPBT)
VaporBoot™ Plus Preformed Pipe Boots are produced from heavy 40 mil co-extruded polyethylene and barrier resins for excellent strength and durability. The preformed boots are stepped to fit 1” to 4” wide pipe penetrations. VaporBoot™ Plus Preformed Pipe Boots are available in quantities of 12 per box.
From tie-d own fasteners to field seaming tape, Viaflex has the accessories you need to maximize your film’s versatility and minimize installation time on the job.
POUR-N-SEAL™ (PNS1G)
POUR-N-SEAL™ is a gray two part epoxy used to seal around multi-pipe penetrations in areas where pipe boots are not practical, when installing underslab barriers. The POUR-N-SEAL™ system installation guide references a 1” x 25 lineal feet adhesive-backed foam to form a dam around multi-pipe penetrations to contain POUR-N-SEAL™ during the setting process. The 1” x 25 ft. adhesive-backed foam is sold seperately as FOAM25.
© 2022 VIAFLEX, INC. All rights reserved.
ACCESSORIES
Tie-Down Buttons (BUTI) & Tarp Grabbers (BUTEZ)
Tie-Down Buttons and Tarp Grabbers help keep plastic sheeting securely in place. Tie-Down Buttons are designed to eliminate traditional grommets in plastic sheeting up to 10 mil thick and are reusable plastic fittings that are easy to install in any position. Tarp Grabbers are up to 4 times stronger than a brass grommet and are typically used in heavier plastic sheeting from 10 mil to 30 mil thick. Great for equipment covers, large storage covers and truck tarps.
ADDITIONAL ACCESSORIES (CONTINUED)
Dura♦Skrim® Reinforced Sandbags
Dura♦Skrim® reinforced sandbags are used to secure large covers and liners to prevent wind damage. Sandbags are produced with strong Dura♦Skrim® 8 & 12 mil reinforced polyethylene. These 15” wide x 24” long bags are designed to hold 35 lbs. Sandbags are also available in other VIAFLEX reinforced materials with minimum order requirements. 11.8” Cable Ties are also available.
Dura-Clip™ (CLIP11)
VIAFLEX Welding Rod
These full size clips are 11” long and fit most commercial scaffolding. Dura-Clip™ will securely fasten your poly sheeting to scaffolding, reducing wind whip and increasing the life of your enclosure. The Dura-Clip™ is normally placed about every 3’ onto the enclosure.
VIAFLEX Welding Rod is used for field seaming, repairs and detail work, such as installing pipe boots. Packaged in 25 lb spools, it is available in 4mm and 5mm sizes to fit most brands of extrusion guns. VIAFLEX Welding Rod is made from a thermally UV stabilized LLDPE resin and is available in both black and white to correspond with the color of geomembranes being utilized.
SEAMING TAPES & OTHER ACCESSORIES FOR PLASTIC SHEETING
TAPE ACCESSORY PROPERTIES
PROPERTIES VaporBond Tape(TVB4)VaporSeal Tape(TVSP4 / TVSP12)VaporBoot Tape(TBOOT)R25B Tape(R25B)Butyl Seal Tape(TP2BR / TP6BR)
Backing 6.7 mil Polyethylene 7 mil EVOH/LLDPE 30 mil EPDM 8 mil Multi-Polymer N/A
Adhesive 3.3 mil Rubber Based
Pressure-Sensitive
2 mil Acrylic Adhesive
Pressure-Sensitive
20 mil
Butyl Rubber
17 mil
Synthetic Elastomeric
40 mil
Butyl Rubber
Color White Silver Black Black Black
Type Single Sided Single Sided Single Sided Single Sided Double Sided
Size 4” x 210’4” x 160’ / 12” x 50’2” x 16.4’4” x 100’2” x 50’ / 6” x 50’
Rolls per Case 12 12 / 4 64 6 16 / 4
Weight per Case 45 lbs 50 lbs / 18 lbs 45 lbs 33 lbs 47 lbs / 20 lbs
Adhesion Values 35 oz. / in. (to steel)80 oz. / in. (to steel)145 oz. / in. (to steel)144 oz. / in. (to steel)88 oz. / in. (to steel)
Perms 0.081 g/(24h*100 in²)0.014 g/(24h*100 in²)N/A <0.005 g/(24h*100 in²)0.82 g/(24h*100 in²)
Service Temp.-40° F to +180° F -40° F to +190° F +14° F to +122° F +20° F to +180° F 0° F to +170° F
Min.Application Temp.50° F 50° F 14° F 35° F 35° F
Ideal StorageTemp. / Humidity 70° F w/ 40-50 %60°-80° F w/ 40-60 %70° F w/ 70 %70° F w/ 40-50 %70° F w/ 40-50 %
Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be performed for applicability in specific applications and/or conditions. VIAFLEX MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at www.viaflex.com
27-0016 05/23
[e-mail] www.viaflex.comScan QR Code to download technical data sheets.
VIAFLEX, INC.
821 W Algonquin Street Sioux Falls, SD 57104 Ph: [phone] • TF: [phone]© 2022 VIAFLEX, INC. All rights reserved.
Viaflex, Inc.821 W Algonquin Street Sioux Falls, SD 57104Ph: [phone] • TF: [phone] [e-mail] www.viaflex.com
012116 EFD 1319
HIGH-STRENGTH EPOXY BONDING ADHESIVE
POUR-N-SEAL™
PRODUCT NAMEPOUR-N-SEAL™ (P/N: PNS1G)
MANUFACTURERViaflex, Inc.
821 W. Algonquin Street
Sioux Falls, SD 57104
PRODUCT DESCRIPTION
POUR-N-SEAL™ is a gray two-part medium viscosity high strength epoxy used to seal around multiple pipe penetrations in tight areas where pipe boots are not practical,
when installing VaporBlock® moisture and
gas barriers.
TECHNICAL DATA
Applicable Standards:• ASTM (American Society for Testingand Materials)• ASTM C881 Standard Specification for
Epoxy-Resin-Base Bonding Systems for
Concrete• ASTM D695 Standard Test Method forCompressive Properties of Rigid Plastics• ASTM D638 Standard Test Method for
Tensile Properties of Plastics
• ASTM C882 Standard Test method forBond Strength of Epoxy-Resin SystemsUsed with Concrete by Slant Shear• ASTM Standard Test Method for
Deflection Temperature of Plastics Under
Flexural Load in the Edgewise Position• ASTM D570 Standard Test Method forWater Absorption of Plastics
MATERIAL PREPARATIONStore material overnight to precondition at a temperature between 70° F to 80° F prior to use.
INSTALLATION
1. POUR-N-SEAL™ is used to seal
moisture and gas barriers to multiple pipepenetrations in situations where pipe bootsare not able to be installed due to the tightconcentration of the pipe penetrations.
2. Install the vapor/gas barrier as close as
possible to the penetrations by making asmall opening. Effort should be given tominimize large gaps in the barrier next tothe penetrations, this will also reduce the
amount of POUR-N-SEAL™ necessary to
complete an acceptable seal.3. To help concentrate the sealant aroundthe pipe penetration, a dam can be formedaround the pipe grouping with an adhesive
backed weather stripping foam. One gallon
covers 80 sq. ft. at a thickness of 20 mils.
4.Only mix the amount of material that can be used within the pot life of the epoxy,
approximately 36 minutes at 73° F. Premix
each component prior to combining. Pour “A” and “B” components together and thoroughly mix using a low speed drill with a mixing paddle. Scrape the sides and bottom
to assure a consistent blend.5.Once mixed, pour contents around the pipe penetrations, if needed a brush or flat wooden stick can be used to direct the sealant completely around all penetrations
and overlap the moisture/gas barrier to form
a continuous seal. Avoid Contact with skin (see SDS for complete safety precautions). Immediately dispose of any remaining mixed POUR-N-SEAL™ epoxy left in the container
to avoid excessive heat buildup.6.Depending upon the temperature. POUR-N-SEAL should be tack free in approximately 5 hours.
STORAGE/SHELF LIFEStore in dry environment between 40º F and 80º F (4º C-27º C). Do not allow product
to freeze. Shelf Life: 12 months from date
of manufacture in unopened containers properly stored. Protect from moisture.
AVAILABILITYPlease call your local construction supply distributor for availability of POUR-N-SEAL™
or call our toll free number at 800-635-3456.
SAFETY
POUR-N-SEAL™ “B” component contains amines and may cause severe burns upon skin contact for any length of time. Use OSHA-approved personal protective
equipment (PPE), including safety glasses,
gloves and confined space equipment/
TEST DATA
Compressive Strength ASTM D-695 11,070
Compressive Modulus of Elasticity ASTM D-695 370,000
Tensile Strength ASTM D-638 3,480
Tensile Modulus of Elasticity ASTM D-638 429,000
Tensile Elongation ASTM D-638 1.2 %
Bond Strength (dry cure) - 2 day ASTM C-882 3,390
Bond Strength (dry cure) - 14 day ASTM C-882 3,600
Shore Hardness D scale 86 D
Heat Deflection ASTM D-648 120° F (49° C)
Water Absorption ASTM D-570 < 1 %
procedures if applicable. Avoid skin contact;
do not ingest. See SDS for complete safety precautions. For professional use only.
WARRANTYViaflex warrants its products to be free from manufacturing defects and that products
meet the published characteristics when
tested in accordance with ASTM standards. No other warranties by Viaflex are expressed or implied, including no warranty of
merchantability or fitness for a particular
purpose. Viaflex will not be liable for damages of any sort resulting from any claimed breach of warranty. Viaflex's liability under this warranty is limited to replacement
of material or refund of sales price of the
material. There are no warranties on any product that has exceeded the “shelf life” or “expiration date” printed on the package label.
27-0202 02/23
DESCRIPTION
Con-Dri Mastic is a commercial grade trowelable waterproofing mastic based on polymer modified asphalt emulsion. Con-Dri Mastic is used as a below-grade exterior
waterproofing compound and exhibits excellent strength,
adhesion, and flexibility. Con-Dri Mastic is a premium grade waterproofing compound used in commercial building construction for detailed applications.
Con-Dri Mastic can be effectively used as a sealant or patch
for tie holes, protrusions, penetrations, cold joints and
honeycombs. This product is also a great choice for repairing cracks, seam failures and other water penetration points on existing structures. Con-Dri Mastic is also used as
an adhesive for flashing and other termination materials.
APPLICATIONS
-Masonry Foundations
-Poured Foundations
-Pre-Cast Foundations
-Horizontal
Testing Value
Black/Brown
63% ± 2%
40-60 mil dry
ASTM D 412 87 psi
ASTM D 412 1800%
ASTM E 96 0.19 gr/hr* sq. ft.
ASTM C 834 Exceeds
ASTM C 836 75
ASTM C 836 Exceeds
ASTM C 836 No Cracking
ASTM C 836 0.38 perms
TECHNICAL DATA
Property
Color
Solids
Thickness
Tensile Strength
Elongation
MVT
Adhesion to Concrete
Shore Hardness Crack
Bridging
Low Temp Flexibility
Perm Rating
The information and recommendations discussed in this
publication are believed to be correct. The ASTM testing
is conducted by an independent accredited laboratory.
No statement should be construed as a recommendation
for any use, which would violate any patent rights. This document is not a guarantee of a warranty.
605 Wesleyan DR SW, Atlanta, GA 30336 • 678-904-0038 • www.con-dri.com
Con-Dri Mastic
Big Foot Slotted PVC Pipe Product Specification Sheet
VIMS Specification Sheet 2 (Option)

 

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3” SCH40 SLOTTED .060” wide x .375”
spacing x 3 rows @ 120
East Hwy 30
Paxton, Nebraska 69155
Customer Signature Approval__________________
3” SCH40
°
Specifications 3” SCH40 OD – 3.50” Wall – 0.216” ID – 3.068”
Weight – 1.458 lbs per foot
.375”.060”
VIMS Specification Sheet 3 (Option)
Professional Discount Supply Soil Gas Collector Mat Specification Sheets and Installation
Instructions
1RADONPDS.COM | 719-444-0646 | [e-mail]
SOIL GAS COLLECTOR MAT
SUBMITTAL PACKAGE & INSTALL GUIDE
PHOTOS, VIDEOS, & MORE @WWW.RADONMAT.COM
THE WORLD’S CHOICE FOR SOIL GASES FOR THREE DECADES!2
SOIL GAS COLLECTOR MAT FOR
RADON READY NEW CONSTRUCTION
According to the US EPA’s model standards for radon control systems in new building construction, a means for collecting soil gas should be installed beneath the slab.
More and more mitigators and buildiers are using PDS’ soil gas collector mat (SGC Mat) because its installation does not entail any special coordination with plumbers or other site contractors. Low profile mat saves time as it removes the need for trenching. Just lay radon mat down around the inside perime-ter of the foundation, secure it with spikes or land-scaping staples, and pour the concrete.
SGC mat is superior to other mat systems because of its thickness and it has a geotextile fabric cloth surrounding the entire mat material. This feature eliminates the need to lay a plastic 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 quali-ty of the concrete slab. When SGC mat is installed below the slab, you’re providing an airspace that in-tercepts radon--and other soil gases and vapors--be-fore it seeps into the building through the slab. SGC mat also works well as a soil gas collector beneath crawlspace barrier due to its low-profile.
WHY AND HOW IT WORKSThe 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 collection point. This creates incredible pressure field extension for post construc-tion system activation. The mat can support con-crete without compressing, yet is extremely light-weight and easy to handle.
This system allows for radon to flow through the filter fabric and into the airspace. The airspace does not clog because the filter fabric retains the under-lying gravel and soil. The natural airflow through the mat then channels the radon to the T riser to pipe connection. From there, hazardous gas can be vent-ed safely through the roof of the building.
Another key element of a soil gas collection system is attaching the 4” riser* ( 3” and 6” options avail-able) 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 con-nections or fittings. Use SGC Seam Tape to ensure air tight splices and corners.
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TABLE OF CONTENTS
Installation Instructions
Making Corners and Splices
Connecting the Mat to the T-Riser
Trench and Footer Crossings
Pouring Concrete
Radon Risk
About Us
Product Materials and Safety Information
Product Data Sheet
Product Materials - Technical Specifications & Performance
Misc Drawings and Specifications
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THE WORLD’S CHOICE FOR SOIL GASES FOR THREE DECADES!4
INSTALLATION INSTRUCTIONS*
Begin work on the sub grade (soil, sand, or gravel) after the final preparation and before the concrete is poured. Start with T-Riser(s) and work out to en-sure smooth mat placement. Position the T-Riser(s) in appropriate location(s) and secure with nails or staples.
Slide mat into flat openings on either end of T-ris-er with a portion of the fabric around the outside. Tape the fabric to the outside of the T-Riser with duct tape and staple mat to the ground with land-scape staples to ensure soil contact remains during pour stage.
Mat is typically laid out in a rectangular loop in the largest area with branches or legs into smaller areas (FREE takesoffs at www.radonmat.com). There is no need to trench the mat. Roll out the SGC mat and 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 addition to corners, tee junctions & ends.
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.
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 matrix of the branch (or overlap 1/2”)to the matrix of the main loop. Pull the filter 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.
STEP ONE
STEP TWO
STEP THREE
STEP FOUR
STEP FIVE
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INSTALLATION INSTRUCTIONS
All openings in the fabric at joints, T’s, and ends of branches should be taped to keep out concrete.
Stub up a few feet of 4” schedule 40 PVC** from all T risers before pour. Seal with caulk and screws. This ensures no concrete aggregate enters the ris-er during slab pour. Be sure to label “CAUTION RADON REDUCTION SYSTEM” on all pipe. **(6” PVC may be substituted--for large multifamily proj-ects. Simply cut T riser 4” insert away to reveal 6” Legacy T Riser). PVC sizes vary by code and design. 3”, 4”, & 6” schedule 40 PVC are acceptable.
When the building is ready for the vent pipe to be installed above the slab, fit to pre-stubbed PVC with PVC straight connect. Always label “CAUTION RADON REDUCTION SYSTEM” every 10 feet to avoid confusion on site and for the building occupants.
STEP SIX
STEP SEVEN
STEP EIGHT
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 al-ways enter the T riser from at least two directions and exhaust to pipe vertically.
CONTINUED
*These are the manufacturer’s instructions to ensure a proper functioning system. Certain code variants across the US have more lax or more con-
servative requirements. PDS’ soil gas collector can be installed to meet any code requirement (as of publication of this document). Please reach out
to PDS or a certified radon mitigator for consulting on specific code variants.
INSTALL VIDEO
THE WORLD’S CHOICE FOR SOIL GASES FOR THREE DECADES!6
MAKING CORNERS
AND SPLICES
The geotextile 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 to-gether. 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 using PDS SGC seam tape. 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.
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CONNECTING THE MAT
TO THE T RISER
A convenient T-riser with dual entry allows for ei-ther 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 enter-ing. Cap the riser to ensure no concrete enters. T Riser caps can be purchased in lieu of duct tape. A prestub of PVC pipe can also serve the same pur-pose. See steps 8-9 above.
***Due to high product demand, several T riser de-signs have been tested and approved for sale. Your riser may look different than the one pictured here, however its function is the same. Ensure you stub up the PVC pipe and seal all openings with tape so that concrete does not enter during the pour. Secure mat to the ground with staples so riser doesnot float.
THE WORLD’S CHOICE FOR SOIL GASES FOR THREE DECADES!8
INSTALL INFORM FO
R
M
FO
R
M
GRAVEL OR SOIL UNDER MAT
FOOTER FORM
GRAVEL OR SOIL UNDER MAT
SOIL GAS MAT SOIL GAS MAT8” STRONG SLEEVE
SOIL GAS MAT SOIL GAS MAT
8” STRONG SLEEVE
TOP VIEW GOING OVER FOOTER / WALL / TRENCH
SIDE VIEW GOING THRU FOOTER/ INTERMEDIATE WALL
FO
R
M
*See misc drawings at end of guide for more information.
STRONG SLEEVE
SKU: 05-139-S
TRENCH & FOOTER
CROSSING OPTIONS
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SOIL GAS MAT SOIL GAS MAT
PVC PIPE
GRAVEL OR SOIL UNDER MAT
FOOTER / INTERMEDIATE WALL / TRENCH
GRAVEL OR SOIL UNDER MAT
TOP VIEW GOING OVER FOOTER / WALL / TRENCH
SOIL GAS MAT SOIL GAS MAT4” sch. 40 PVC PIPE
*IDEAL FOR LONG SPANS
SIDE VIEW GOING THRU FOOTER/ INTERMEDIATE WALL
TRENCH & FOOTER
CROSSING OPTIONS
FLAT END COMBO OUTLET
SGC TO PVC TRANSITION
TR
E
N
C
H
TR
E
N
C
H
*Three feet or more
SKU: 05-141-2F
TR
E
N
C
H
THE WORLD’S CHOICE FOR SOIL GASES FOR THREE DECADES!1 0
STEEL SLEEVE
SKU: 05-141-W & 05-141-36
*Rebar is a low-cost option that may be used in place of steel sleeve. Place two to three pieces of rebar underneath gas mat trench spans. Rebar must extend past trench at least one foot. Secure with SGC Seam Tape. Priority is to keep mat level and in tact during and after pour.
IDEAL FOR SHORT TRENCHES TR
E
N
C
H
TR
E
N
C
H
GRAVEL OR SOIL UNDER MAT
FOOTER / INTERMEDIATE WALL / TRENCH
GRAVEL OR SOIL UNDER MAT
SOIL GAS MAT SOIL GAS MAT
STEELSLEEVE*(Avail. in 24” or 36”)
SOIL GAS MAT SOIL GAS MAT
STEEL SLEEVE*1” THICK
TOP VIEW GOING OVER FOOTER / WALL / TRENCH
SIDE VIEW GOING THRU FOOTER/ INTERMEDIATE WALL
24” (36”) X 1” X 12”
TRENCH & FOOTER
CROSSING OPTIONS
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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 taped closed at seams of splices and corner to sufficiently keep the uncured concrete from entering.
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 to withstand concrete workers and their wheel barrows.
POURING CONCRETE
THE WORLD’S CHOICE FOR SOIL GASES FOR THREE DECADES!1 2
RADON RISK!
RADON-INDUCED LUNG CANCER CLAIMS THE LIVES
OF OVER 22,000 AMERICANS EACH YEAR
FACT: Radon is found at dangerous levels in all 50 US states. The EPA action level is 4.0 pci/L
or higher
FACT: All US Homes have high radon potential, even those without basements
FACT: Radon is the leading cause of lung cancer among “never smokers”
FACT: Radon is a nobel gas and a natural part of the Uranium 238 breakdown chain
FACT: Breathing 6.2 pci/L is the equivalent radiation dosage of a THREE chest x-rays each
week for your lungs
FACT: Radon is colorless, odorless, and invisible to the naked eye
FACT: Radon testing is cheap and you can do it yourself!
GET THE FACTS @ WWW.RADONREALITY.COM
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ABOUT US
PROFESSIONAL DISCOUNT RADON SUPPLY
Family-owned and operated since 1996. Situated on Colorado’s front range, PDS focuses on generating radon awareness through one-on-one technical support and trouble-shooting. Our products have been successfully installed in all 50 states and several foreign countries.
Distribution opportunities available.Please call for availability in your market
PDS Family: Owners / Operators
5720 Observation CourtColorado Springs, CO 80916
[phone]
[e-mail]
www.radonpds.com
THE WORLD’S CHOICE FOR SOIL GASES FOR THREE DECADES!1 4
PRODUCT MATERIALS
& SAFETY INFORMATION
RECOMMENDED MAXIMUM OCCUPATIONAL EXPOSURE LIMITS
COMPONENT EXPOSURE LIMITS
OSHA - PEL.HAZARD DATACAS NO.
Polystyrene 9003-55-6 None Established No hazardous Ingredients
PROPERTIES DATA
FIRE HANDLING MEASURES
Extinguishing Media
Fire Fighting Procedure
Water Spray (except when fire is of electrical origin), Foam, Dry Powder, CO2
Self-contained breathingapparatus & suitableprotective equipment
PROPERTIES DATA
PHYSICAL DATA
Form
Color
Odor
Boiling Point
Melting Point (°F) Flash Point (°F)
Flamable Limits (°F)
VAC
Volatility
Specific Gravity
Solubility in Water
Molded Sheet
Black
None
Not Applicable
270
Not Applicable
Not Applicable
0%
<0.75% Moisture
1.02–1.08
Not Soluable
PROPERTIES DATA
ECOLOGICAL INFORMATION
& DISPOSAL
Ecological information
Toxicological
Disposal
Not associated with anyknown ecological problems
No negative effects onhumans
Polystyrene recycles well.Can be disposed of assolid waste or burnedin a suitable installationsubject to local regulations.Effluents disposal shouldalso be in accordancewith local legislation.
SOIL GAS COLLECTOR MATSafety data for our non-woven, spun-bonded, polypropylene, gray geotextile fabric is shown below.
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PERFECT FOR RADON CONTROL
SYSTEMS IN NEW HOME CONSTRUCTION
PROPERTIES DATA
PHYSICAL DATA
Stablitity
Incompatibility (Materials to avoid)
Hazardous Decomposition
Conditions to avoid
Stable
Can react with strong oxidixers
Carbon dioxide, carbon monoxide, various hydrocarbons
None
The economical alternative to aggregate systems—quick and easy installation
DESCRIPTION INFORMATION
SPECIAL HANDLING INFORMATION
Handling & Storage Precaution
Eye Protection, Recommended
Skin
Other Clothing & Equipment
Work Practices, Hygiene
Handling & Storage, Other
Protective Measures, Maintenance
Protect against flame & intense heat. Avoid breathing hot vapors.
Use OSHA approved safety glasses when handling.
Wash with soap & water. Get medical attention if irritation developsor persists.
Gloves recommended due to sharp edges.
Use standard work practices for hygienic safety.
Store in well-ventillated area. Avoid extreme heat & sources of ignition oropen flame.
Not Applicable
To the best of our knowledge, the information presented herein is accurate. However,
it is not a warranty or a guarantee and is provided for reference only.
THE WORLD’S CHOICE FOR SOIL GASES FOR THREE DECADES!1 6
PRODUCT DATA SHEET
MATERIAL PHYSICAL PROPERTIES
PROPERTY TEST METHOD
CUSPATED PLASTIC
Specific Gravity (g/cc)
Melt Flow @ 200°C/5000g (g/10 min)
Tensile Strength @ Yield (psi)
Tensile Modulus (psi)
Elongation @ Break (%)
Flexural Modulus (psi)
Impact Strength, Notched Izod @ 73°F (ft-lb/in)
Heat Deflection Temperature @ 264 psi (°F)
Vicat Softening Point (°F)
ASTM D-792
ASTM D-1238
ASTM D-638
ASTM D-638
ASTM D-638
ASTM D-790
ASTM D-256
ASTM D-648
ASTM D-1525
VALUE
1.04
2.5
2,900
275,000
70
300,000
2.1
183
210
PROPERTY TEST METHOD
COVER FABRIC
Grab Tensile (lbs)
Elongation (%)
Trapezoid Tear (lbs)
Puncture (lbs)
Mullen Burst (psi)
AOS (U.S. sieve number)
Permittivity (sec-1)
Permeability (cm/sec)
Water Flow (gal/min/sf)
UV Stability (%)
ASTM D4632
ASTM D4632
ASTM D4533
ASTM D4833
ASTM D3786
ASTM D4571
ASTM D4491
ASTM D4491
ASTM D4491
ASTM D4355
VALUE
130
> 50
60
41
140
70
0.8
0.04
60
70
SOIL GAS COLLECTOR MAT
Safety data for our non-woven, spun-bonded, polypropylene, gray geotextile fabric is shown below.
SKU: 05-140-3 (replaces SKU 05-140-1)
1 7RADONPDS.COM | 719-444-0646 | [e-mail]
PERFECT FOR RADON CONTROL
SYSTEMS IN NEW HOME CONSTRUCTIONThe economical alternative to aggregate systems—quick and easy installation
To the best of our knowledge, the information presented herein is accurate. However,
it is not a warranty or a guarantee and is provided for reference only.
MATERIAL PHYSICAL PROPERTIES
PROPERTY TEST METHOD
BINDING METHOD
External Binder
Type Stitching
Type Thread
Tensile Strength (lbs)
Thread Gage
Chemically Impervious
Standard
Standard
Standard
ASTM D4632
Standard
Standard
VALUE
Sewn
Lock Stitch
HB92 Nylon
11
2 IOx4 denier
MI Natural
CONTINUED
THE WORLD’S CHOICE FOR SOIL GASES FOR THREE DECADES!1 8
PRODUCT MATERIALS
& SAFETY INFORMATION
SOIL GAS COLLECTOR MAT
RECOMMENDED MAXIMUM OCCUPATIONAL EXPOSURE LIMITS
Safety data for our non-woven, spun-bonded, polypropylene, gray geotextile fabric is shown below.
COMPONENT EXPOSURE LIMITS
OSHA - PEL.HAZARD DATACAS NO.
Polystyrene 9003-07-0 None Established No hazardous Ingredients
PROPERTIES DATA
FIRE HANDLING MEASURES
Extinguishing Media
Fire Fighting Procedure
Water Spray (except when fire is of electrical origin), Foam, Dry Powder, CO2
Self-contained breathingapparatus & suitableprotective equipment
PROPERTIES DATA
PHYSICAL DATA
Form
Color
Odor
Boiling Point
Melting Point (°F) Flash Point (°F)
Flamable Limits (°F)
Auto ignition temperature
Vapor Pressure (Pascal)
Density (g/cm3) @20 ºC
Solubility in Water
Thermal decomposition (ºF)
Molded Sheet
Black
None
Not Applicable
270
Not Applicable
Not Applicable
Not Applicable
Not Volatile
0.91
Not Soluable
Above 570
PROPERTIES DATA
ECOLOGICAL INFORMATION
& DISPOSAL
Ecological information
Toxicological
Disposal
Not associated with anyknown ecological problems
No negative effects onhumans
Polystyrene recycles well.Can be disposed of assolid waste or burnedin a suitable installationsubject to local regulations.Effluents disposal shouldalso be in accordancewith local legislation.
1 9RADONPDS.COM | 719-444-0646 | [e-mail]
PERFECT FOR RADON CONTROL
SYSTEMS IN NEW HOME CONSTRUCTIONThe economical alternative to aggregate systems—quick and easy installation
To the best of our knowledge, the information presented herein is accurate. However,
it is not a warranty or a guarantee and is provided for reference only.
PROPERTIES DATA
STABILITY & REACTIVITY
Stablitity
Incompatibility (Materials to avoid)
Hazardous Decomposition
Conditions to avoid
Stable
Can react with strong oxidixers, base, or acid
Carbon dioxide, carbon monoxide, low molecular weight oxygenated organic
None
DESCRIPTION INFORMATION
SPECIAL HANDLING INFORMATION
Handling & Storage Precaution
Eye Protection, Recommended
Skin
Other Clothing & Equipment
Work Practices, Hygiene
Handling & Storage, Other
Protective Measures, Maintenance
Avoid breathing hot vapors, oiled mists, and airborne fibers.
Use OSHA approved safety glasses when handling rolls
Wash with soap & water. Get medical attention if irritation developsor persists.
Not applicable
Use standard work practices for hygienic safety.
Store rolls In accordance with good material handling practice.
Not Applicable
THE WORLD’S CHOICE FOR SOIL GASES FOR THREE DECADES!2 0
PRODUCT MATERIALS,
TECHNICAL SPECIFICATIONS
& PERFORMANCE
SOIL GAS COLLECTOR MATOur non-woven, spun-bonded, polypropylene, gray geotextile fabric with the minimumvalues shown below.
PROPERTY TEST METHOD
Grab Tensile Strength (lbs)
Elongation (%)
Trapezoid Tear (lbs)
Puncture (lbs)
Mullen Burst (psi)
AOS (U.S. sieve no.)
Permittivity (sec-1)
Permeability (cm/sec)
Vertical Water Flow Rate (gal/min/sf)
UV Stability (%)
ASTM D4632
ASTM D4632
ASTM D4533
ASTM D4833
ASTM D3786
ASTM D4571
ASTM D4491
ASTM D4491
ASTM D4491
ASTM D4355
VALUE
130
>50
60
41
140
70
0.8
0.04
60
70
2 1RADONPDS.COM | 719-444-0646 | [e-mail]
PRODUCT MATERIALS,
TECHNICAL SPECIFICATIONS
& PERFORMANCE
PROPERTY TEST METHOD
Specific Gravity
Melt Flow (g/10min)
Tensile @ Yield (psi)
Tensile Modulus (psi)
Elognation @Break (%)
Flexural Modulus (psi)
Notched Izod @ 73ºF (ft-lb/in)
HDT @ 264 psi (ºF)
Vicat Softening Point (ºF)
ASTM D-792
ASTM D-1238
ASTM D-638
ASTM D-638
ASTM D-638
ASTM D-790
ASTM D-256
ASTM D-648
ASTM D-1525
VALUE
1.04
2.5
2,900
275,000
70
300,000
2.1
183
210
THE WORLD’S CHOICE FOR SOIL GASES FOR THREE DECADES!2 2
Product DetailsVer. 3/1/2023
1. Product NameModel SSK-08
2. ManufacturerStrong Sleeves™ LLC10 Town Plaza, #444Durango, CO 81301www.strongsleeves.com
3. Product DescriptionUses: Strong Sleeves™ are installed when forming concrete structural supports, creating a continuous path-way for effective soil gas collection systems. In accordance with the Drawings, the pre-manufactured Strong Sleeve devices allow radon mitigation mats to easily be continued through concrete grade beams and con-crete stem walls without transitioning to round pipe.Advantages: Strong Sleeves are designed and engineered for safer construction of new residential, commer-cial, and school buildings by eliminating extensive trenching and specialized gravel fill materials.
4. Installation a. Install at elevations and locations shown on the Drawings or as otherwise directed by the Archi tect. Coordinate all locations with the Structural Engineer to confirm that the block-out locations through the grade beams and stem walls have sufficient structural strength and adequate reinforce ment. b. Attach the Sleeve to the interior walls of the concrete forms using the (4) pre-drilled holes in each Sleeve unit. Adjust steel reinforcement as directed by the Structural Engineer for wall or grade beam penetrations. c. After pouring concrete and removing concrete forms, remove the foam insert within each Sleeve. Use mechanical means only, DO NOT USE SOLVENTS TO DISSOLVE THE FOAM. Using solvents (such as gasoline) to remove the foam blocking may damage radon mitigation equipment and may lead to the risk of fire.
5. Availability and CostStrong Sleeves™ are available through our network of specialty radon supply distributors. For current cost information and availability contact Radon PDSwww.radonpds.com.
2 3RADONPDS.COM | 719-444-0646 | [e-mail]
Product DetailsVer. 3/1/2023
6. Hazards and Exposure ControlsThis product is exempt from hazard classification according to OSHA Hazard Communication Standard, 29 CFR 1910.1200.This product is considered to be an article which does not release or otherwise result in exposure to a haz-ardous chemical under normal use conditions. No engineering controls or personal protective equipment (PPE) are necessary.
7. Materials DataEach Sleeve shall be constructed of a minimum of 22 gage galvanized sheet steel according to the sizes shown on the Drawings.
8. WarrantyStrong Sleeves LLC shall guarantee the Sleeve components against all manufacturer originated defects in materials or workmanship for a period of twelve (12) months from the date the components are delivered for installation. The manufacturer shall upon its determination repair, correct or replace any manufacturer originated defects advised in writing to the manufacturer within the referenced warranty period. The cost of the replacement or repair of the Strong Sleeves shall be limited to the cost of the Strong Sleeve products supplied. The use of Sleeves shall be limited to the application for which they were specifically designed.
9. Technical ServicesTechnical advice, custom CAD drawings, custom Sleeve sizing, and additional information can be obtained by contacting Strong Sleeves or by visiting the website.
PROPERTY COMPONENT
Appearance:Metallic
Physical State:Solid
Solubility in Water:Insoluable
Melting Point:2,372~2,800 °F
Specific Gravity (water = 1):7.5~8.5
Odor:Odorless
Product DetailsVer. 3/1/2023
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SOIL GAS MAT SUB-SLAB PREPARATION DETAIL.DWG 2/28/2023
GR
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12.625 IN
11.625 IN
4 IN
Ø4 IN
5.813 IN
1.375 IN
VIMS Specification Sheet 4
Ventilator Specification Sheets
TURBINE VENTILATORS
CONSTRUCTION SPECIFICATIONS
“A”
THROAT SIZE
GUAGE NO. OF
BRACES
BRACE
MATERIALCROWN GALV.BLADE GALV.THROAT GALV.
4 24 28 26 3 ALUMINUM
6 24 28 26 3 ALUMINUM
8 24 28 26 3 ALUMINUM
10 24 28 26 3 ALUMINUM
12 24 28 24 3 ALUMINUM
14 22 26 24 3 ALUMINUM
16 22 26 24 3 STEEL
18 22 26 24 4 STEEL
20 20 26 24 4 STEEL
24 20 26 22 4 STEEL
DIMENSIONAL AND PERFORMACE DATA
“A”
THROAT SIZE
“B”
HEIGHT
“C”
OVERALL WIDTH
EXHAUSTED
CAPACITY*
APPROX.
SHIPPING WEIGHT
4 12 10 1/4 125 5
6 14 1/2 12 3/4 147 7
8 15 14 1/4 255 8
10 16 1/4 16 1/4 425 11
12 17 19 631 13
14 19 3/4 22 3/4 700 21
16 21 3/4 25 1/2 950 31
18 24 29 1200 38
20 25 1/4 31 5/8 1700 46
24 28 1/4 35 3/4 2350 58
*4 MPH WIND CFM
www.luxurymetals.com
Email for Price and Availability: [e-mail] or 206.406.7346

Collar A B C CFM Ship Weight
4” 4 10 8.5 90 3
6” 6 10.5 10.75 147 5
8” 8 10.5 12.75 255 5
10” 10 10.5 14 425 8
12” 12 12.5 18.5 531 8
14” 14 13 20.5 700 16
16” 16 17.5 24 950 21
18” 18 17.5 26.25 1200 23
20” 20 21.5 30 1700 44
24” 24 21.5 34.5 2350 52
30” 30 21.5 43.25 3650 76
36” 36 21.5 50.75 4600 80
42” 42 24 61.75 5200 210
48” 48 34 66.25 5900 250

Galvanized & Aluminum – Sizes 4” – 48”

TURBINE VENTILATORS
Heavy-Duty Commercial Grade Turbine Vents

Heavy Duty Turbines Not Available in Retail Stores
Internally or Externally Braced
Excellent for Residential, Commercial or Light Industrial Use
Green, Wind Powered Ventilation
Lower Energy Costs
Durable, Long Lasting
Active and Passive Ventilation
Spins on a Jewel Bearing instead of Ball Bearings (Longer Life)
Available Sizes: 4”-48”
Vent Bases Available for All Roof Pitches

B
A
C
*Not for use with fossil fuels, high heat or radon gas ventilation
Internally Braced Externally Braced
Monitoring Point Specification Sheets
VIMS Specification Sheet 6











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