24025 Crayton Printing Vapor Intrusion Mitigation Plan Rev 2 20210824

Via Email

August 24, 2021

NCDEQ – Division of Waste Management
Brownfields Program
1646 Mail Service Center
Raleigh, NC 27699-1646

Attn: Mr. Bill Schmithorst

Re: Vapor Intrusion Mitigation Plan
Revision 2
Crayton Printing
Distribution and Dunavant Street
Charlotte, North Carolina
Brownfields Project No. 24025-20-060
H&H Project No. AKR-005

Dear Mr. Schmithorst:

On behalf of KA D&D Holdings LLC., Hart & Hickman, PC (H&H) has prepared the attached
Vapor Intrusion Mitigation Plan – Revision 2 for the Crayton Printing Brownfields property
located 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
Matt Bramblett, PE
Principal

Attachments

cc: Mr. Dan Coith and Mr. Dan Outen, Akridge (Via Email)
Ms. Mary Katherine Stukes, Moore & Van Allen (Via Email)
Ms. Pamela Tyrrell, Kettler (Via Email)

Vapor Intrusion Mitigation Plan
Revision 2

Crayton Printing
Distribution Street and Dunavant Street
Charlotte, North Carolina

Brownfields Project No. 24025-20-060

H&H Job No. AKR-005
August 24, 2021

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Mitigation Plan Rev 2.doc
Vapor Intrusion Mitigation Plan – Revision 2
Crayton Printing
Distribution Street and Dunavant Street
Charlotte, North Carolina
Brownfields Project No. 24025-20-060
H&H Job No. AKR-005

Table of Contents

1.0 Introduction ................................................................................................................ 1 
2.0 Design Basis ................................................................................................................ 5 
2.1 Base Course Layer and Vapor Barrier ..........................................................................5 
2.2 Horizontal Collection Piping, Vertical Riser Piping, and Turbine Fans .......................6 
2.3 Monitoring Points .........................................................................................................7 
2.4 General Installation Criteria ..........................................................................................8 
3.0 Quality Assurance / Quality Control ........................................................................ 9 
4.0 VIMS Effectiveness Testing .................................................................................... 10 
4.1 Influence Testing ........................................................................................................10 
4.2 Pre-Occupancy Indoor Air Sampling ..........................................................................10 
4.3 Pre-Occupancy Sub-Slab Soil Vapor Sampling .........................................................12 
4.4 Reporting VIMS Effectiveness Results ......................................................................13 
5.0 VIMS Effectiveness Monitoring ............................................................................. 14 
6.0 Reporting .................................................................................................................. 15 

Figures
Figure 1 Site Location Map
Figure 2 Site Map
Figure 3A Proposed Indoor Air and Sub-Slab Vapor Sample Location Map – Level 1
Figure 3B Proposed Indoor Air and Sub-Slab Vapor Sample Location Map – Level 2

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Attachments
Attachment A Vapor Intrusion Mitigation Plan – Sheets VM-1, VM-2, VM-3 and VM-3A
Attachment B Vapor Intrusion Assessment Data Summary
Attachment C-1 VaporBlock 20 (VBP-20) Product Specification Sheets & Installation
Instructions
Attachment C-2 Drago Wrap Product Specification Sheets & Installation Instructions
Attachment C-3 Empire Passive Ventilator Fan Product Specification Sheet
Attachment C-4 Big Foot Slotted PVC Pipe Product Specification Sheet
Attachment C-5 Zurn Industries Floor Clean-out Product Specification Sheet

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Vapor Intrusion Mitigation Plan – Revision 2
Crayton Printing
Distribution Street and Dunavant Street
Charlotte, North Carolina
Brownfields Project No. 24025-20-060
H&H Job No. AKR-005

1.0 Introduction

On behalf of KA D&D Holdings LLC, Hart & Hickman, PC (H&H) has prepared this Vapor
Intrusion Mitigation Plan (VIMP) for the proposed redevelopment of the Crayton Printing
Brownfields property located at Distribution Street and Dunavant Street in Charlotte,
Mecklenburg County, North Carolina (Site). A Site location map is provided as Figure 1.

The Site is comprised of four contiguous parcels of land (Mecklenburg County Parcel
Identification Nos. 12104201, 12104402, 12104203, and 12104218) totaling approximately 2.83
acres. The northern Site parcel (2301 Distribution Street) is developed with an approximate
10,694 square foot (sq ft) office/warehouse building that is currently leased to an electrician.
The western Site parcel (2321 Distribution Street) is developed with an approximate 12,005 sq ft
office/warehouse building that is currently unoccupied but was formerly occupied by Crayton
Printing. The southwestern Site parcel (2327 Distribution Street) is developed with an
approximate 6,821 sq ft office/warehouse building currently occupied by Timely Filter Supply
(air filter distributor). The eastern Site parcel on Dunavant Street is developed with a 14,570 sq
ft multi-tenant commercial building consisting of four tenant spaces (2300, 2302, 2304, and 2306
Dunavant Street) that are currently unoccupied. Site redevelopment is underway as of the
submittal of this VIMP. Key Site features are depicted on Figure 2.

The Site consisted of a creek and undeveloped land as early as the 1930s and remained
Undeveloped land until the mid-1950s when the subject Site was cleared and graded. By 1965,
rail spurs were developed in the northern and central portions of the Site. The current northern
and western commercial buildings were constructed in the late 1960s, and the current eastern
building was developed by the mid-1970s. The subject Site was utilized by various commercial
occupants from the late 1960s until present. The western Site parcel building (2321 Distribution
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Street) was utilized by a printing facility that manufactured printing plates in the late 1980s and a
letter press and printing facility in the early 2000s.

Current redevelopment plans for the Site include razing the existing Site buildings and
constructing a seven-story multi-family residential apartment building. Floor 1 of the proposed
building will be completely on grade and will consist of apartment units and open-air parking,
leasing, office, amenity, mechanical, and building services areas. The enclosed space of the
ground floor is approximately 25,000 sq ft. Due to the natural grade rise from northwest to
southeast, Level 2 is partially over the ground level floor (northwestern portion) and 32,000 sq ft
are on grade (southeastern portion). Level 2 and subsequently higher levels will consist of
residences and mechanical rooms. The building layout is presented on Figure 2 and in
Attachment A.

The Site received a letter of eligibility for entry into the DEQ Brownfields Program (Brownfields
Project No. 24025-20-060) on June 19, 2020. On August 6, 2020, a kick-off/data gap meeting
was held with the PD, the DEQ Brownfields Program project manager, and H&H to discuss Site
history, previous environmental assessment, proposed redevelopment plans, data gaps, and a
proposed schedule for completing the Brownfields Agreement.

Vapor intrusion assessment was completed at the Site in September 2020. A review of the sub-
slab vapor and soil gas sample results indicate the presence of tetrachloroethylene (PCE),
dichlorodifluoromethane, and/or petroleum-related compounds at concentrations above the NC
DEQ Division of Waste Management (DWM) Residential Vapor Intrusion Soil Gas Screening
Levels (SGSLs) in samples (SS-2, SS-3, SS-7, and SG-1 through SG-4). Risk calculator results
using worst-case compound concentrations detected in the soil gas samples indicate that the
calculated cumulative non-carcinogenic HI exceeds 1. Review of the soil gas analytical data in
comparison to the residential risk calculator results indicates that the cumulative HI value is
primarily driven by the PCE and dichlorodifluoromethane concentrations detected in sub-slab
samples SS-2 and SS-7, collected in the western and southern portions of the Site.

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Additionally, groundwater analytical results from groundwater assessment activities conducted
in September 2020 indicate detections of trichloroethylene at concentrations above NC DEQ
DWM Residential Groundwater Screening Levels (GWSLs). Risk calculator results using
compound concentrations detected in groundwater samples indicate that the calculated
cumulative non-carcinogenic HI exceeds 1.

Although risk calculator results indicate unacceptable risks in only select areas of the Site, the
PD has elected to install a vapor intrusion mitigation system (VIMS) below all ground-level
areas of the proposed building (excluding the proposed parking garage and courtyard) as a
precautionary measure. The Brownfields Assessment Report documenting vapor intrusion
assessment conducted at the site in September 2020 was submitted to DEQ on October 6, 2020.
Analytical data summary tables, a sample location map, and associated risk calculations are
provided in Attachment B.

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 NCEQ with
“information necessary to demonstrate that ... as a result of the implementation of the
brownfields agreement, the brownfields property will be suitable for the uses specified in the
agreement while fully protecting public health and the environment instead of being remediated
to unrestricted use standards.” It is in the context of these risk-based concepts that H&H’s
professional engineer makes the following statement.

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

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2.0 Design Basis

The VIMS design drawings are included in Attachment A as Sheets VM-1, VM-2, VM-3, and
VM-3A and will be used to guide construction of the VIMS. To reduce the potential for
structural vapor intrusion, the VIMS will operate as a sub-slab depressurization system that
includes a network of horizontal sub-slab and vertical above slab riser piping connected to wind-
driven turbine fans installed above the building roof. The foundation of the building will consist
of two distinct column supported slab-on-grade floors on Level 1 and the southern portion of
Level 2. Open-air parking, an enclosed package holding room, and a retaining wall are situated
between Level 1 and the slab on grade portion of Level 2. Vapor intrusion mitigation measures
are not warranted in the parking garage area because of the open-air space.

2.1 Base Course Layer and Vapor Barrier

The VIMS includes placement of a minimum 5-inch base course 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 slab of the building. A vapor liner (vapor barrier) will
be installed above the base course gravel layer (directly beneath the slab). Please note that the
horizontal collection piping network will be installed within the base course gravel layer prior to
placement of the vapor liner. The horizontal vapor collection piping is discussed further in
Section 2.2. below. The piping layout is shown on Sheets VM-1 and VM-2, and section details
are shown on Sheets VM-3 and VM-3A (Attachment A).

The vapor liner will consist of Vaporblock® Plus 20 (VBP20) manufactured by Raven Industries
(Raven). As an alternative, Drago® Wrap Vapor Intrusion Barrier (Drago Wrap) manufactured
by Stego® Industries (Stego) can be used. Technical specifications for each vapor liner product
are included in Attachment C.

Vapor liners will be installed per manufacturer installation instructions (Attachment C). The
liners will be installed over the sub-slab washed gravel to cover the areas shown on Sheets VM-1
and VM-2. Each vapor liner manufacturer recommends select sealing agents (mastics, tapes,
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etc.) for their product. Therefore, and in accordance with the manufacturer installation
instructions, the use of alternative vapor liner products for sealing will not be used. One vapor
liner product and associated accessories should be used continuously throughout the installed
system.

The exterior edges of the vapor liner will be attached and sealed to building footings and
subsurface concrete features utilizing the tape specified in the manufacturer instructions. Seams
within the building footprint will have a minimum of 6-inches or 12-inches of overlap
(depending on the vapor barrier manufacturing specifications) and will be sealed with the tape
specified in the manufacturer instructions. If the vapor liner is damaged, torn, or punctured
during installation, a patch will be installed by overlaying a piece of vapor liner that is cut to the
approximate shape of the damaged area, and sized such that a minimum of 6-inches of patch
surrounds the damaged area. The seams of the patch will then be sealed using the manufacturer
recommended tape.

In areas where utility penetrations (i.e., piping, ducts, etc.) are present and the use of the tape
recommended by the manufacturer is not practical or deemed as “ineffective” by the Engineer
certifying the VIMP, an alternative sealant product specified by the vapor liner manufacturer can
be used. Following successful installation of the vapor liner, the finished concrete slab will be
placed directly on top of the sealed vapor liner to further seal the seams and penetrations. The
concrete slab also serves to seal the vapor liner along to slab perimeter to create a complete
vapor barrier system for each slab section.

2.2 Horizontal Collection Piping, Vertical Riser Piping, and Turbine Fans

Passive sub-slab venting will be accomplished using wind-driven turbine fans (a passive
measure) and horizontal perforated collection piping which will collect vapor from beneath the
ground floor slabs and discharge the vapors above the building roofline through vertical riser
piping. Both sub-slab and above-slab piping will consist of 3-inch diameter Schedule 40 (SCH
40) PVC piping and fittings, unless otherwise specified in the VIMP. The piping layouts are
shown on Sheets VM-1 and VM-2, and section details are shown on Sheets VM-3 and VM-3A
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(Attachment A). Note that solid sections of VIMS piping shall maintain 1% slope toward slotted
sections to drain potential condensation water. Product specifications for the slotted horizontal
collection piping are provided in Attachment C.

The VIMP includes installation of Empire Model TV04SS (stainless steel) wind-driven turbine
fans (or Engineer approved alternative) on the discharge end of the vertical riser piping above the
building roofline. The fans have a rated exhaust capacity of 126 to 147 cubic feet per minute in a
four mile per hour wind. Wind will commonly drive the turbine fans at wind speeds greater than
4 miles/hr. Discharge locations must be a minimum of 2 ft above the roofline or parapet and 10
ft from an operable opening or air intake into the building. Note that fan locations on the roof
depicted in the VIMS design may be repositioned within the requirements specified above and
pending approval by the Engineer certifying the VIMP. Product specifications for the proposed
turbine fans and PVC piping are provided in Attachment C. An electrical junction box (120v,
60hz AC required) will be installed on the roof near each turbine fan location should connection
of an electrical fan be warranted in the future.

2.3 Monitoring Points

Twenty monitoring points constructed with 2-inch diameter SCH 40 PVC will be installed as
part of the VIMS to conduct effectiveness testing (see Section 4.0), including vacuum influence
measurements, and for the collection of sub-slab vapor samples for laboratory analysis. The
monitoring point locations are shown on Sheets VM-1 and VM-2, and section details and
specifications are included on Sheets VM-3 and VM-3A (Attachment A).

In general, monitoring points will be placed at remotely distant locations from vertical riser
piping locations or in areas below living spaces. To prevent entering the residential units during
future monitoring events, the monitoring point access ports will be located outside of the
building, in hallways, or in amenity spaces and secured within either a lockable weather-proof
enclosure or flush-mount sewer cleanout-type cover. Several monitoring points will be
connected to extended sub-slab horizontal pipes which place the intake of the monitoring point
below occupied spaces and the access for collecting measurements will be on the exterior wall of
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the building. Product specifications for the proposed floor cleanout covers are provided in
Attachment C. In order to reduce VOCs from construction materials in future sub-slab vapor
samples submitted for laboratory analysis, the monitoring point components will be connected
using threaded connections or approved low VOC containing products (Section 2.4).

In the event that a monitoring point cannot be installed due to building component conflict or is
damaged/destroyed during construction, a replacement monitoring point can be constructed,
pending approval by the Engineer certifying the VIMP. The replacement point(s) shall consist of
one of the specified designs on Sheets VM-3 and VM-3A. DEQ will be notified in advance if
monitoring points are relocated significantly in relation to approved locations specified in the
VIMP (i.e., moved to a location in a different mitigation area, section of slab, or tenant area).
The specific type of monitoring point installed will be documented in as-built drawings.

2.4 General Installation Criteria

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

For each phase of construction (above and below slab), construction contractors and sub-
contractors shall use “low or no VOC” products and materials that could potentially contain
compounds of concern. Prior to submittal of a VIMS Installation Completion Report, the
construction contractor and sub-contractors shall provide safety data sheets (SDSs) for products
and materials used during construction. SDSs provided by the contractor and sub-contractors,
which will include but are not limited to building products, will be included in the VIMS
Installation Completion Report.
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3.0 Quality Assurance / Quality Control

For quality assurance and quality control (QA/QC) purposes, inspections will be conducted
during each phase of the VIMS installation. The components that require inspection are outlined
below:

(1) Inspection of the base course gravel layer, sub-slab piping layout, and monitoring points
prior to installing the vapor liner;
(2) Inspection and potentially smoke testing of the vapor liner prior to pouring concrete;
(3) Inspection of above-grade vertical riser piping; and
(4) Inspection of turbine fan installations and riser pipe connections.

In addition to inspection of the vapor barrier, smoke testing of the vapor barrier may be
conducted prior to the installation of concrete to verify that the vapor barrier has been adequately
sealed. Breaches in the vapor barrier identified by visible smoke will be repaired during smoke
testing activities.

Additional inspections will be conducted if the system(s) are activated to verify that the electric
fans (if installed) are functioning properly. Each inspection and smoke testing (if required) will
be performed by, or under direction of, the design Engineer certifying the VIMP. Inspections
will be combined when possible depending on construction sequencing and schedule. The
inspections will include field logs and photographs for each section of slab. As requested, and
whenever possible, the Engineer certifying the VIMP, or designee, will provide DEQ with 48-
hour notice prior to conducting the inspections. Please note that 48-hrs notice to DEQ may not
be possible in some cases due to tight construction sequencing. In the event that 48-hour notice
is not possible, DEQ will be provided with as much notice as possible prior to an inspection.

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4.0 VIMS Effectiveness Testing

4.1 Influence Testing

Post-installation influence testing will be conducted on each VIMS treatment area to evaluate
vacuum communication across the slab and document sufficient depressurization can be obtained
should electric fans be needed in the future. Influence testing will be conducted following
installation of the horizontal collection piping, placement of the vapor liner, and concrete slab
pours. Ideally, the vacuum influence testing will be completed with the vertical riser piping
stubbed above the slab, but prior to being completed at the roof.

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 ultimately each monitoring point will be checked for
vacuum. A pressure differential resulting in depressurization below the slab of at least 4 pascals
(approximately 0.016 inches of water column) at remote distances from riser location in each
VIMS treatment area is considered sufficient. Vacuum influence testing results will be
submitted to DEQ as part of the VIMS Installation Completion Report. If the influence testing
results indicate that modifications to the VIMS are needed to achieve sufficient sub-slab
depressurization, H&H will notify DEQ of the modifications prior to submittal of the VIMS
Installation Completion Report.

4.2 Pre-Occupancy Indoor Air Sampling

Upon completion of successful influence testing and following complete installation of the
VIMS (i.e., with the wind-driven fan operational), and due to DEQ requirements, a total of
twelve (12) indoor air samples are proposed within mitigated areas of the building to evaluate the
effectiveness of the VIMS. The indoor air samples will be collected in accordance with the
DWM VI Guidance. Doors to the building exterior and parking garage will be closed during
pre-occupancy sampling. Each indoor air sample will be collected using a laboratory supplied 6-
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liter Summa canister over a 24-hour period. Six (6) indoor air samples are proposed on Floor 1
and six (6) indoor air samples are proposed on the ground level portion of Floor 2.

The indoor air samples will be collected using 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. A 3-foot
long sampling cane will be connected to the flow controller so that the sample intake point is
positioned approximately 5 ft above grade (typical breathing zone height) when the sample
canister is set on its base. 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 will be maintained within the canisters at the
conclusion of the sampling event.

The starting and ending vacuum in each canister will be recorded on the sample chain-of-
custody. Periodic checks will be conducted by sampling personnel to monitor the pressure within
the Summa canisters during sampling to ensure adequate sample volume is collected. The
sample canisters will then be labeled and shipped under standard chain-of custody procedures to
a qualified laboratory for analysis of select VOCs by EPA Method TO-15. The select list will
include PCE, PCE degradation products, and VOCs detected during concurrent sub-slab vapor
sampling (discussed in the following section). The analytical laboratory will be instructed to
report vacuum measurements at receipt and J-flag concentrations for each sample. H&H will
request that the laboratory report compound concentrations to the lower of the laboratory method
detection limits or the DEQ DWM Residential Vapor Intrusion Indoor Air Screening Levels
(IASLs) to the extent possible. For QA/QC purposes, one duplicate and one background air
sample will be collected from an upwind location during each indoor air sampling event. In
addition, an Indoor Air Building Survey form (Appendix C of the DWM VI Guidance) will be
completed for each sampling event.

Note that 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
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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.

4.3 Pre-Occupancy Sub-Slab Soil Vapor Sampling

Due to anticipated indoor air VOC concentration interference from on-going construction
activities and off-gassing of construction materials, sub-slab vapor samples will be collected
from select monitoring points concurrently with indoor air samples to further evaluate the
potential for structural vapor intrusion. The sub-slab vapor samples will be collected from
locations generally co-located with indoor air samples. Vapor intrusion assessment analytical
results of samples collected in the footprint of the Floor 1 VIMS and samples collected in the
footprint of the Floor 2 VIMS of the proposed building will be used to separately evaluate risk to
future occupants of the building. Six (6) sub-slab vapor samples are proposed within the Floor 1
VIMSs and six (6) within the Floor 2 VIMS for a total of twelve (12) sub-slab vapor samples.
Floor 1 VIMS sub-slab vapor samples will be collected from monitoring points MP-2, MP-3,
MP-6, MP-8, MP-9, and MP-12. Floor 2 sub-slab vapor samples will be collected from
monitoring points MP-15 through MP-20. One duplicate sub-slab soil vapor sample for
laboratory QA/QC purposes will be collected during each sampling event.

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

The sub-slab soil vapor samples will be collected over a 10-minute period using laboratory
supplied 1-liter Summa canisters and laboratory supplied flow regulators calibrated with an
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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. Analytical results of 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
volatile organic compounds (VOCs) by EPA Method TO-15. The analytical laboratory will be
instructed to report vacuum measurements up receipt and J-flag concentrations for each sample.
In addition, H&H will request that the laboratory report compound concentrations to the lower of
the laboratory method detection limits or the DEQ DWM Residential Vapor Intrusion Sub-Slab
and Exterior Soil Gas Screening Levels to the extent possible.
4.4 Reporting VIMS Effectiveness Results

The results and analysis of the indoor air and sub-slab soil vapor sampling will be submitted to
DEQ with the final VIMS Installation Completion Report (discussed in Section 6.0). After
receipt of the indoor air and sub-slab soil vapor sample analytical results, H&H will use the most
recent version of the DEQ Risk Calculator to evaluate cumulative vapor intrusion risks under a
residential scenario for each sample location. H&H will consider the VIMS effective if the
calculated cumulative risks are less than 1x10-4 for potential carcinogenic risks and below a
Hazard Index of 1.0 for potential non-carcinogenic risks, in accordance with DEQ’s risk
calculator thresholds. H&H acknowledges that DEQ may still request additional sampling even
if the risk calculator thresholds are met. In the event that calculated cumulative risks for a
residential scenario are greater than 1x10-4 for potential carcinogenic risks and/or above a Hazard
Index of 1.0 for potential non-carcinogenic risks as a result of structural vapor intrusion,
confirmation sub-slab soil vapor or indoor air samples will be collected from the area of concern.
In the event that calculated cumulative risks for a residential scenario continue to exceed
acceptable levels for potential carcinogenic risks (greater than 1x10-4) and/or potential non-
carcinogenic risks (above a Hazard Index of 1.0) as a result of structural vapor intrusion,
considerations will be made to convert the system from a passive system to an active system.

14
https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master
Projects/Akridge/AKR.005 Dunavant Brownfields Assessment/VIMP/Rev 1/24025-20-060 Vapor
Intrusion Mitigation Plan Rev 2.doc
5.0 VIMS Effectiveness Monitoring

The VIMS is proposed as a passive system which will include vapor extraction through sub-slab
collection piping and wind-driven turbine fans. As such, differential pressure monitoring is not
anticipated. If the VIMS is converted to an active system with electric fans based on
post-construction VIMS efficacy testing results, mitigation system modifications and plans for
additional VIMS efficacy testing will be submitted to the DEQ Brownfields Program for
approval prior to implementation. Actual fans to be used will be selected based on the results of
the influence testing discussed in Section 4.0.

Post-construction VIMS effectiveness monitoring will include periodic analytical sampling. Due
to the impending construction schedule, a VIMS effectiveness monitoring approach and plan will
be provided to DEQ for approval as an addendum to this VIMP prior to initiating VIMS
effectiveness pre-occupancy analytical sampling. The VIMP addendum will include discussion
of VIMS effectiveness monitoring, plans to notify future tenants of the presence of a VIMS,
plans to prevent future tenants or occupants from exposing/damaging the VIMS without the
oversight of a qualified P.E., and plans if the VIMS is exposed by future Site activities.

15
https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master
Projects/Akridge/AKR.005 Dunavant Brownfields Assessment/VIMP/Rev 1/24025-20-060 Vapor
Intrusion Mitigation Plan Rev 2.doc
6.0 Reporting

A VIMS Installation Completion Report (sealed by a NC PE) documenting installation activities
associated with the VIMS will be submitted to DEQ following confirmation that the mitigation
system is installed and effectively mitigating potential vapor intrusion risks to building
occupants. The report will include a summary of VIMS installation activities including
representative photographs and as-built construction drawings, QA/QC measures, SDSs of
materials used in construction, VIMS effectiveness testing results, inspection documents, and an
opinion as to whether the VIMS was installed in accordance with the DEQ-approved VIMP.

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 February, 2020.
SITE LOCATION MAP
CRAYTON PRINTINGDISTRIBUTION STREET AND DUNAVANT STREET CHARLOTTE, NORTH CAROLINA
REVISION NO: 0
FIGURE NO: 1
2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology
0 2,000 4,000
SCALE IN FEET
SITE
N
U.S.G.S. QUADRANGLE MAP
CHARLOTTE EAST, NORTH CAROLINA 2013
QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC)DATE: 9-28-20
JOB NO. AKR-005
REVISION NO. 0
JOB NO. AKR-005
DATE: 4-1-21
FIGURE NO. 2
CRAYTON PRINTING
DISTRIBUTION STREET AND DUNAVANT STREETCHARLOTTE, NORTH CAROLINA
BROWNFIELDS PROJECT NO. 24025-20-060
SITE MAP
LEGEND
SITE PROPERTY BOUNDARY
PARCEL BOUNDARY
PROPOSED BUILDING FOOTPRINT - LEVEL 1
PROPOSED BUILDING FOOTPRINT - LEVEL 2
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
HUB SOUTH END APARTMENTS(2250 HAWKINS STREET)
JUNCTION 1504
LUXURY APARTMENTS
(1504 MAINLINE BOULEVARD)
THE DUNAVANT RESTAURANT /VACANT COMMERCIAL UNIT(2322 DUNAVANT STREET)
MULTI-TENANT COMMERCIAL BUILDING(2401 DISTRIBUTION STREET)
PET WANTS: THE URBAN FEED STORE /CHARLOTTE GRILL COMPANY(2324 DISTRIBUTION STREET)
WORLD STONE FABRICATORS INC.(2300 DISTRIBUTION STREET)
WAREHOUSE BUILDING
(2301 DISTRIBUTION STREET)
TIMELY FILTER SUPPLY
(2327 DISTRIBUTION STREET)
MULTI-TENANTCOMMERCIAL BUILDING(2326 DISTRIBUTION STREET)
VACANT OFFICE / WAREHOUSE BUILDING(FORMERLY CRAYTON PRINTING)(2321 DISTRIBUTION STREET)
VACANT MULTI-TENANTCOMMERCIAL BUILDING(2300-2306 DUNAVANT STREET)DISTRIBUTION STREETDUNAVANT STREETDUNAV
AN
T

S
TR
EE
T
HAWKINS STREETMERV PLACE
PARKING DECK
POOL / COURTYARD
AREA A
AREA B
AREA C
AREA D
LEGEND
1.AERIAL IMAGERY OBTAINED FROM MECKLENBURGCOUNTY GIS (2020).
2.DEVELOPMENT PLANS PROVIDED BY BB+M, DATED2-19-2020.S:\AAA-Master Projects\Akridge\AKR.005 Dunavant Brownfields Assessment\Figures\Site Map.dwg, FIG 2, 4/1/2021 11:43:08 AM, SVincent
ELEV. 720'
ELEV. 720'
ELEV. 732'
ELEV. 725'
ELEV. 715'5.21% UP6.57% UPFUTURE RESIDENT
PARKING
ELEV. 723'
CYCLE CENTER RESIDENT STORAGE
RISER
MECH VENT
MECH. VENT
MECH.
DOG WASH
TRASH ROOM
ELEV. 712'
ELEV. 720'
ELEV. 719'-6"
ELEV. 718'
ELEV. 727'
ELEC.
ELEV. 717'
LOADING
ZONE
ELEV. 732'
ELEV. 722'
MAINTENANCE
TRASH STAGING AREA
BIKE STORAGE
ELEC.
ELEV LOBBY
ELEV. 717'-6"
ELEV. 730'
ELEV. 727'
ELEV. 729'
MECH. VENT
MAIL
CENTER
720' - 3"
LEVEL 1 TRASH
MECH.
LEASING/ LOUNGE
SERVICE
ELEV. 1 ELEV. 2
STAIR E
PACKAGE
STAIR B
ELEV. 3 ELEV. 4
CORRIDOR
722' - 3"
720' - 3"
LEASING/ LOUNGE
STAIR A
LYFT
WAITING
AREA
OUTDOOR
AMENITY
713' - 0 3/8"
720' - 3"
POOL ROOM
CHEM.
720' - 3"
4
13 10
LANAIS ABOVE
PARKING RAMP: 1
6.30%
719' - 9"
719' - 9"
719' - 9"
720' - 3"714' - 6 3/4"
717' - 4"1" / 12"1" / 12"1" / 12"714' - 6"
714' - 6"
714' - 6"
720' - 3"
714' - 6"
717' - 9"
719' - 9"
MECH
4'x8'
4'x8'
4'x8'
6.30%
6.30%
LARGESCALEWASH
719' - 9"
717' - 4"4'x8'4'x8'1/4" / 12"719' - 9"
717' - 9"
STAIR C
2.75%2.10%0.62%0.73%5.22%720' - 3"
721' - 3"
720' - 3"
720' - 3"
9
5
8
6
717' - 8"
720' - 3"
721' - 3"SLOPEDOWNHSS8X4X1/4HSS8X4X1/4SW-#1
SW-#2SW-#4SW-#5
SW-#6
SW-#7
SW-#8
SW-#9SW-#10SLOPEDOWNSLOPEUPSLOPEUPSLOPEUPJOB NO.
AKR-005
PROPOSED
INDOOR
AIR AND
SUB-SLAB
VAPOR
SAMPLE
LOCATION
MAP -
LEVEL 1
AUGUST 4, 2021
FIGURE NO. 3A
VAPOR 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
ISSUED FOR CONSTRUCTION
REVISION 1CRAYTON PRINTINGDISTRIBUTION STREET AND DUNAVANT STREETCHARLOTTE, NORTH CARLINABROWNFIELDS PROJECT NO. 24025-20-060LEGEND
SLAB GRADE CHANGE
OUTDOOR OR OPEN AIR
LEVEL 2 SLAB ON GRADE AREA
MONITORING POINT LOCATION
PROPOSED INDOOR AIR SAMPLE LOCATION
MP-4
MP-2
MP-3
MP-4
MP-6
MP-9
MP-10
MP-12
GROUNDLEVEL PORTION OF
LEVEL 2 (SEE FIGURE 3B)
MP-11
MP-14
MP-5
MP-1
MP-7
MP-8
IAS-2
IAS-3
IAS-4
IAS-5
IAS-6
LEASING OFFICE
AND LOUNGE
STAIRWELL C
APARTMENTS
MECHANICAL AND
SUPPORT ROOMS
PACKAGE STORAGE ROOM
PARKING
GARAGE
APARTMENTS
ELEVATORS 1 & 2STAIRWELL A
ELEVATORS 3 & 4
STAIRWELL B
STAIRWELL E
IAS-1
S:\AAA-Master Projects\Akridge\AKR.005 Dunavant Brownfields Assessment\Figures\Sampling Map.dwg, FIG 3A, 8/4/2021 11:37:52 AM, SVincent
4.86% UPMECH.STORAGE ELEC./ DATA
MECH.
ELEV. 726'
ELEV. 730'
ELEV. 727'
ELEV. 729'
732' - 3"
729' - 11"
732' - 3"
732' - 3"
732' - 3"
MECH.
732' - 3"
732' - 3"
MECH.
STAIR D
WELLNESS STUDIO
MECH.
CORRIDOR
CORRIDOR
CORRIDOR
CORRIDOR
CORRIDOR
732' - 3"
9
9
732' - 3"
STORAGE
6.31%6.57%16
5 2
14
10
6
12
7
SW-#1
SW-#2
SW-#3SW-#4SW-#5
SW-#6
SW-#7
SW-#8
SW-#9SW-#10VAPOR 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
ISSUED FOR CONSTRUCTION
CRAYTON PRINTINGDISTRIBUTION STREET AND DUNAVANT STREETCHARLOTTE, NORTH CARLINABROWNFIELDS PROJECT NO. 24025-20-060MP-20 MP-15
MP-16
MP-17MP-18
MP-19
LEGEND
OUTDOOR OR OPEN AIR
LEVEL 2 NON-SLAB ON GRADE AREA
MONITORING POINT LOCATION
PROPOSED INDOOR AIR SAMPLE LOCATION
MP-4
IAS-7
IAS-8
IAS-9
IAS-10
IAS-11
IAS-12
JOB NO.
AKR-005
PROPOSED
INDOOR
AIR AND
SUB-SLAB
VAPOR
SAMPLE
LOCATION
MAP -
LEVEL 2
AUGUST 4, 2021
FIGURE NO. 3B
REVISION 1
LEVEL 1 SLAB ON GRADE
(SEE FIGURE 3A)
STAIRWELL C
APARTMENTS
PACKAGE STORAGE ROOM
PARKINGGARAGE
ELEVATORS 1 & 2
STAIRWELL A
ELEVATORS 3 & 4
STAIRWELL B
STAIRWELL E
APARTMENTS
POOL / COURTYARD
LEVEL 1 SLAB ON GRADE(SEE FIGURE 3A)S:\AAA-Master Projects\Akridge\AKR.005 Dunavant Brownfields Assessment\Figures\Sampling Map.dwg, FIG 3B, 8/4/2021 11:38:23 AM, SVincent
Attachment A
Vapor Intrusion Mitigation Plan
Sheets VM-1, VM-2, VM-3 and VM-3A
ELEV. 720'
ELEV. 720'
ELEV. 732'
ELEV. 725'
ELEV. 715'5.21% UP6.57% UPFUTURE RESIDENT
PARKING
ELEV. 723'
CYCLE CENTER RESIDENT STORAGE
RISER
MECH VENT
MECH. VENT
MECH.
DOG WASH
TRASH ROOM
ELEV. 712'
ELEV. 720'
ELEV. 719'-6"
ELEV. 718'
ELEV. 727'
ELEC.
ELEV. 717'
LOADING
ZONE
ELEV. 732'
ELEV. 722'
MAINTENANCE
TRASH STAGING AREA
BIKE STORAGE
ELEC.
ELEV LOBBY
ELEV. 717'-6"
ELEV. 730'
ELEV. 727'
ELEV. 729'
MECH. VENT
MAIL
CENTER
720' - 3"
LEVEL 1 TRASH
MECH.
LEASING/ LOUNGE
SERVICE
ELEV. 1 ELEV. 2
STAIR E
PACKAGE
STAIR B
ELEV. 3 ELEV. 4
CORRIDOR
722' - 3"
720' - 3"
LEASING/ LOUNGE
STAIR A
LYFT
WAITING
AREA
OUTDOOR
AMENITY
713' - 0 3/8"
720' - 3"
POOL ROOM
CHEM.
720' - 3"
4
13 10
LANAIS ABOVE
PARKING RAMP: 1
6.30%
719' - 9"
719' - 9"
719' - 9"
720' - 3"714' - 6 3/4"
717' - 4"1" / 12"1" / 12"1" / 12"714' - 6"
714' - 6"
714' - 6"
720' - 3"
714' - 6"
717' - 9"
719' - 9"
MECH
4'x8'
4'x8'
4'x8'
6.30%
6.30%
LARGESCALEWASH
719' - 9"
717' - 4"4'x8'4'x8'1/4" / 12"719' - 9"
717' - 9"
STAIR C
2.75%2.10%0.62%0.73%5.22%720' - 3"
721' - 3"
720' - 3"
720' - 3"
9
5
8
6
717' - 8"
720' - 3"
721' - 3"SLOPEDOWNHSS8X4X1/4HSS8X4X1/4SW-#1
SW-#2SW-#4SW-#5
SW-#6
SW-#7
SW-#8
SW-#9SW-#10SLOPEDOWNSLOPEUPSLOPEUPSLOPEUPVAPOR 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
LEGEND
SLAB GRADE CHANGE
THICKENED SLAB
OUTDOOR OR OPEN AIR
LEVEL 2 SLAB ON GRADE AREA
EXTENT OF VAPOR LINER
3" DIA SCH 40 SLOTTED PVC PIPE
3" DIA SCH 40 SOLID PVC PIPE
4" DIA SCH 40 SOLID PVC PIPE
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH
FAN IDENTIFICATION NUMBER (REFER TO DETAIL
NUMBER 23 ON SHEET VM-3A)
2" DIA SOLID PVC PRESSURE MONITORING POINTWITH FLUSH-MOUNTED COVER OR EXTERIOR
ACCESS PANEL
F-7
MP-4
F-1
F-2
F-3
F-4
F-5
F-6
F-8
MP-2
MP-3
MP-4
MP-6
MP-9
MP-10
MP-12
SEE VM-2 FOR
LEVEL 2 VIMS
LAYOUT
MP-11
MP-14
MP-5
MP-1
MP-7
MP-8
3" VENT CAP AT ENDSOF SLOTTED PIPE(TYP)
SCH 40 PVC TEE
(TYP)
4" TO 3" SCH 40 PVCREDUCER (TYP)
3" TO 4" SCH 40 PVCREDUCER (TYP)
1
VM-3
22
VM-3A
10
VM-3
6/23
VM-3/A
5
VM-3
22
VM-3A
9
VM-3
24
VM-3A
10
VM-3
17
VM-3
7/23
VM-3/A
9
VM-3
5
VM-3
16
VM-3
14
VM-3
14
VM-3
2
VM-3
6
VM-3 16
VM-3
SCH 40 PVC TEE(TYP)
3" VENT CAP AT ENDSOF SLOTTED PIPE(TYP)
3" VENT CAP AT ENDSOF SLOTTED PIPE(TYP)
15
VM-3
15
VM-3
5
VM-3
25
VM-3A
12
VM-3
12
VM-3
25
VM-3A
18
VM-3
20
VM-3
20
VM-3
11/23
VM-3/A
18
VM-3
21/22
VM-3A
F-7
11/23
VM-3/A
4
VM-3
4
VM-3
21
VM-3A
6/23
VM-3/A
12
VM-3
3
VM-3
22
VM-3A
14
VM-3
8
VM-3
12
VM-3
22
VM-3A
12
VM-3
1
VM-3
13
VM-3
3
VM-3
21
VM-3A
21
VM-3A
13
VM-3
H&H NO. AKR-005
VIMS LAYOUT -LEVEL 2
APRIL 1, 2021
VM-1
PROFESSIONALAPPROVAL
REVISION 1CRAYTON PRINTINGDISTRIBUTION STREET AND DUNAVANT STREETCHARLOTTE, NORTH CARLINABROWNFIELDS PROJECT NO. 24025-20-06021
VM-3A
3
VM-3
S:\AAA-Master Projects\Akridge\AKR.005 Dunavant Brownfields Assessment\VIMP\Figures\Addendum\VIMS-2021.03.30-Combined.dwg, VM-1, 4/1/2021 2:14:50 PM, SVincent
4.86% UPMECH.STORAGE ELEC./ DATA
MECH.
ELEV. 726'
ELEV. 730'
ELEV. 727'
ELEV. 729'
732' - 3"
729' - 11"
732' - 3"
732' - 3"
732' - 3"
MECH.
732' - 3"
732' - 3"
MECH.
STAIR D
WELLNESS STUDIO
MECH.
CORRIDOR
CORRIDOR
CORRIDOR
CORRIDOR
CORRIDOR
732' - 3"
9
9
732' - 3"
STORAGE
6.31%6.57%16
5 2
14
10
6
12
7
SW-#1
SW-#2
SW-#3SW-#4SW-#5
SW-#6
SW-#7
SW-#8
SW-#9SW-#10H&H NO. AKR-005
VIMS LAYOUT -LEVEL 2
APRIL 1, 2021
VM-2
VAPOR 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
PROFESSIONALAPPROVAL
REVISION 1CRAYTON PRINTINGDISTRIBUTION STREET AND DUNAVANT STREETCHARLOTTE, NORTH CARLINABROWNFIELDS PROJECT NO. 24025-20-060LEGEND
THICKENED SLAB
OUTDOOR OR OPEN AIR
LEVEL 1 SLAB ON GRADE AREA
EXTENT OF VAPOR LINER
3" DIA SCH 40 SLOTTED PVC PIPE
3" DIA SCH 40 SOLID PVC PIPE
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH
FAN IDENTIFICATION NUMBER (REFER TO DETAIL
NUMBER 23 ON SHEET VM-3A)
2" DIA SOLID PVC PRESSURE MONITORING POINT
WITH FLUSH-MOUNTED COVER OR EXTERIORACCESS PANEL
F-10
MP-17
F-9
F-10
F-11
F-12
F-13
F-14
F-15
F-16
F-17
MP-20 MP-15
MP-16
MP-17MP-18
MP-19
SEE VM-1 FOR
LEVEL 1 VIMSLAYOUT
SEE VM-1 FOR
LEVEL 1 VIMS
LAYOUT
3" VENT CAP AT ENDSOF SLOTTED PIPE(TYP)
SCH 40 PVC TEE(TYP)
90-DEGREE SCH 40PVC ELBOW (TYP)
SCH 40 PVC TEE(TYP)
6
VM-3
7/23
VM-3/A 7/23
VM-3/A
23
VM-3A
21
VM-3A
3" VENT CAP AT ENDSOF SLOTTED PIPE(TYP)
2
VM-3
15
VM-3
12
VM-3
12
VM-31
VM-3
15
VM-3
22
VM-3A
19
VM-3
19
VM-3
PACKAGE ROOM
18
VM-3
18
VM-3
12
VM-3
1
VM-3
7/23
VM-3/A
3" VENT CAP AT ENDSOF SLOTTED PIPE(TYP)
12
VM-3
4
VM-3
12
VM-3
19
VM-3
19
VM-3
2
VM-3
7/23
VM-3/A
2
VM-3
3" VENT CAP AT ENDSOF SLOTTED PIPE(TYP)
7/23
VM-3/A
22
VM-3A
S:\AAA-Master Projects\Akridge\AKR.005 Dunavant Brownfields Assessment\VIMP\Figures\Addendum\VIMS-2021.03.30-Combined.dwg, VM-2, 4/1/2021 2:15:25 PM, SVincent
VIMS VAPOR LINER AND BASE COURSE (TYP)1VAPOR LINER (SEE SPECIFICATION #1)CONCRETE FLOOR SLABNTSVM-3VIMS SLOTTED COLLECTION PIPING (TYP)2VAPOR LINER (SEE SPECIFICATION #1)NTSCONCRETE FLOOR SLABVM-3BASE COURSE - CLEAN # 57 STONE (WASHEDWITH NO FINES), MIN 5" THICK BENEATH VIMSVAPOR LINER3" SCH 40 SLOTTED PVC PIPESET WITHIN MIN 5" BASE COURSESUB-BASESUB-BASEBASE COURSE - CLEAN # 57 STONE (WASHEDWITH NO FINES), MIN 5" THICK BENEATH VIMSVAPOR LINERVIMS VAPOR LINER AT INTERIOR THICKENED SLAB (TYP)NTS3VM-3CONCRETEFLOOR SLABBASE COURSE(SEE SPECIFICATION #1)VAPOR LINER(SEE SPECIFICATION #1)SUB-BASEWALL (VARIES)VIMS VAPOR LINER AT EXTERIOR THICKENED SLAB (TYP)NTS4VM-3VAPOR LINER(SEE SPECIFICATION #1)SOIL SUB-BASE. GRAVEL BETWEEN OPENAIR PARKING GARAGE AND OCCUPIEDSPACE SHALL BE DISCONTINUOUS WITHMINIMUM 1-FT OF SOIL IN HORIZONTALDIRECTION BETWEEN GRAVEL LAYERS(SEE SPECIFICATION #8)WALL (VARIES)OPEN AIRPARKING GARAGEOCCUPIED SPACEVAPOR LINER SEALED TO CONCRETE PERMANUFACTURERS INSTRUCTIONS (TYP)MINIMUM 5" THICKENED SLAB THICKNESSVIMS PIPING THROUGH FOOTING (TYP)NTS5VM-3CONCRETEFLOOR SLABBASE COURSE(SEE SPECIFICATION #1)SUB-BASESOLID 3"SCH 40 PVCSOLID TO SLOTTED 3" SCH 40PVC PIPE TRANSITION (SLIPCOUPLING OR THREADED JOINT)VAPOR LINER (SEESPECIFICATION #1)WALL (VARIES) PIPE SLEEVETHROUGH FOOTINGPIPE SLEEVE SHALL NOTPENETRATE VAPOR LINER(SEE SPECIFICATION #11)SLEEVE FOR FULL LENGTH OF PROJECTIONVAPOR LINER SEALED TO PIPE PERMANUFACTURER INSTRUCTIONS (TYP)VIMS AT VERTICAL RISERS WITH 90 DEGREE ELBOW (TYP)NTS7VM-3BASE COURSE(SEE SPECIFICATION #1)SUB-BASEVAPOR LINER SEALED TO PIPE PERMANUFACTURER INSTRUCTIONSVAPOR LINER(SEE SPECIFICATION #1)3" SCH 40 PVC RISER DUCT PIPE(SEE SPECIFICATION #3, #4 & #5)WALL (VARIES)3" SCH 40 PVC90-DEGREE ELBOWSOLID TO SLOTTED 3" SCH 40PVC PIPE TRANSITION (SLIPCOUPLING OR THREADED JOINT)VIMS AT SLAB STEP WITH RISER DUCT PIPING (TYP)NTS11VM-3SUB-BASECONCRETE FLOOR SLABVAPOR LINER(SEE SPECIFICATION #1)SOLID 3" SCH 40 PVC(SEE SPECIFICATION #2)BASE COURSE(SEE SPECIFICATION #1)WALL (VARIES)SOLID TO SLOTTED 3" SCH 40 PVCPIPE TRANSITION (SLIP COUPLINGOR THREADED JOINT)VAPOR LINER SEALED TO PIPEPER MANUFACTURERINSTRUCTIONS (TYP)3" SCH 40 PVC90-DEGREE ELBOW3" SCH 40 PVC90-DEGREE TEEPIPE SLEEVE (SEE SPECIFICATION #11)VIMS AT DEPRESSIONS IN SLAB-ON-GRADE (TYP)NTS9VM-3CONCRETE FLOOR SLABSUBBASEVAPOR BARRIER(SEE SPECIFICATION #1)BASE COURSE(SEE SPECIFICATION #1)VIMS PIPING THROUGH DEPRESSIONS IN SLAB-ON-GRADE (TYP)NTS10VM-3SUB-BASECONCRETE FLOOR SLABVAPOR LINER(SEE SPECIFICATION #1)BASE COURSE(SEE SPECIFICATION #1)SOLID TO SLOTTED 3" SCH 40PVC PIPE TRANSITION (SLIPCOUPLING OR THREADED JOINT)3" SCH 40 PVC90-DEGREE ELBOWVAPOR LINER SEALED TOPIPE PER MANUFACTURERINSTRUCTIONSSOLID 3" SCH 40 PVC(SEE SPECIFICATION #5)PIPE SLEEVE (SEESPECIFICATION #11)WALL (VARIES)VIMS AT EXTERIOR FOOTING (TYP)NTSVM-38CONCRETE FLOOR SLABVAPOR LINER SEALED TO CONCRETEPER MANUFACTURERS INSTRUCTIONSVAPOR LINER(SEE SPECIFICATION #1)BASE COURSE(SEE SPECIFICATION #1)SUB-BASEEXTERIOR GRADE(VARIES)WALL (VARIES)VAPOR LINER EXTENDED TO EXTERIOR SIDE OFFOOTER, IF POSSIBLE, BASED ON CONSTRUCTIONSEQUENCE. ENGINEER WILL APPROVE FINAL VAPORLINER TERMINATION POINT DURING CONSTRUCTIONCOLUMN BLOCKOUTVIMS AT EXTERIOR COLUMN (TYP)NTS15VM-3SUB-BASECONCRETEFLOOR SLABBASE COURSE(SEE SPECIFICATION #1)VAPOR LINER(SEE SPECIFICATION #1)CIP CONCRETE COLUMNVAPOR LINER SEALEDTO CONCRETE PERMANUFACTURERSINSTRUCTIONSVIMS AT INTERIOR COLUMN (TYP)NTS14VM-3SUB-BASECONCRETE FLOOR SLABBASE COURSE(SEE SPECIFICATION #1)VAPOR LINER(SEE SPECIFICATION #1)CIP CONCRETE COLUMNCONCRETE FOOTINGVAPOR LINER SEALED OUTSIDE OFCONCRETE COLUMN PERMANUFACTURER INSTRUCTIONSVIMS AT VERTICAL RISERS WITH TEE (TYP)NTS6VM-3BASE COURSE(SEE SPECIFICATION #1)SUB-BASESOLID 3" SCH 40 PVCVAPOR LINER SEALED TO PIPE PERMANUFACTURER INSTRUCTIONSVAPOR LINER(SEE SPECIFICATION #1)SOLID TO SLOTTED 3" SCH 40PVC PIPE TRANSITION (SLIPCOUPLING OR THREADED JOINT)3" SCH 40 PVC RISER DUCT PIPE(SEE SPECIFICATION #3, #4 & #5)WALL (VARIES)3" SCH 40 PVC TEEVAPOR LINERBENEATH THICKENED SLABVAPOR BARRIER AT STAIR THICKENED SLAB13NTSSTAIR STRINGERSUBBASEBASE COURSE(SEE SPECIFICATION #1)VM-3CONCRETE FLOORSLABVAPOR LINER(SEE SPECIFICATION #1)WALL (VARIES)BASE COURSE(SEE SPECIFICATION #1)SUB-BASEVAPOR LINER(SEE SPECIFICATION #1)WALL (VARIES)VAPOR BARRIER AT SLAB EDGE12NTSVM-3WALL (VARIES)BASE COURSE(SEE SPECIFICATION #1)SUB-BASEVAPOR LINER(SEE SPECIFICATION #1)OPEN AIR PATIO /TERRACEVIMS PIPING THROUGH FOOTING WITH REDUCER (TYP)NTS16VM-3CONCRETE FLOOR SLABBASE COURSE(SEE SPECIFICATION #1)SUB-BASESOLID 4" SCH 40 PVC4" TO 3" SCH 40PVC REDUCERVAPOR LINER (SEESPECIFICATION #1)WALL (VARIES) PIPE SLEEVETHROUGH FOOTINGPIPE SLEEVE SHALL NOTPENETRATE VAPOR LINER(SEE SPECIFICATION #11)VAPOR LINER SEALED TO PIPE PERMANUFACTURER INSTRUCTIONS (TYP)SLOTTED 3-INCHSCH 40 PIPE OPEN AIR SPACEVIMS AT RETAINING WALL ADJACENT TO ENCLOSED SPACE (TYP)NTS18VM-3 OCCUPIED SPACEOCCUPIED SPACESUB-BASEBASE COURSE(SEE SPECIFICATION #1)VAPOR LINER(SEE SPECIFICATION #1)VAPOR LINER SEALED TO OUTSIDE OF CONCRETEAND WATERPROOFING/INSULATION (WHEREPRESENT) PER MANUFACTURER INSTRUCTIONS WATERPROOFING ANDRIGID INSULATIONDRAINWALL (VARIES)CONCRETEFLOOR SLABVIMS AT RETAINING WALL ADJACENT TO OPEN AIR SPACE (TYP)NTS19VM-3 INTERIOR SPACEOPEN AIR SPACESUB-BASECONCRETEFLOOR SLABBASE COURSE(SEE SPECIFICATION #1)VAPOR LINER(SEE SPECIFICATION #1) WATERPROOFING ANDRIGID INSULATIONDRAINWALL (VARIES)VIMS SOLID PIPING THROUGH SLAB STEP (TYP)NTS17VM-3SUB-BASECONCRETE FLOOR SLABVAPOR LINER(SEE SPECIFICATION #1)BASE COURSE(SEE SPECIFICATION #1)3" SCH 40 PVC90-DEGREE ELBOWVAPOR LINER SEALED TO PIPE PERMANUFACTURER INSTRUCTIONS (TYP)SOLID 3" SCH 40 PVC(SEE SPECIFICATION #5)PIPE SLEEVE (SEE SPECIFICATION #11)VIMS AT RETAINING WALL ADJACENT TO OCCUPIED SPACE (TYP)NTS20VM-3 OPEN AIR SPACEOCCUPIED SPACESUB-BASEBASE COURSE(SEE SPECIFICATION #1)VAPOR LINER(SEE SPECIFICATION #1)VAPOR LINER SEALED TO OUTSIDE OF CONCRETEAND WATERPROOFING/INSULATION (WHEREPRESENT) PER MANUFACTURER INSTRUCTIONS WATERPROOFING ANDRIGID INSULATIONDRAINWALL (VARIES)CONCRETEFLOOR SLABVAPOR MITIGATION PLAN PREPARED BY:2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologyISSUED FOR CONSTRUCTIONNOTES:VIMS = VAPOR INTRUSION MITIGATION SYSTEMTYP = TYPICALSCH = SCHEDULEPVC = POLYVINYL CHLORIDENTS = NOT TO SCALEALL PIPE MEASUREMENTS ARE BY DIAMETERH&H NO. AKR-005VIMS DETAILS#1 - 20APRIL 1, 2021VM-3PROFESSIONALAPPROVALREVISION 1CRAYTON PRINTING
DISTRIBUTION STREET AND DUNAVANT STREET
CHARLOTTE, NORTH CARLINA
BROWNFIELDS PROJECT NO. 24025-20-060
S:\AAA-Master Projects\Akridge\AKR.005 Dunavant Brownfields Assessment\VIMP\Figures\Addendum\VIMS Details.dwg, VM-3, 4/1/2021 2:16:09 PM, SVincent
VIMS TURBINE VENTILATOR FAN & EXHAUST (TYP)23NTSTURBINE VENTILATOR FAN(EMPIRE MODEL TV04SS OR ENGINEERAPPROVED EQUIVALENT)OUTDOOR-RATED ELECTRICAL JUNCTION BOX FORPOTENTIAL FUTURE VACUUM FAN (REFER TOSPECIFICATION #4) RISER DUCT PIPE THROUGH ROOFFLASHINGROOFTOPVM-3A4" X3" HEAVY DUTY NOHUB COUPLINGSLP.VIMS AT RAMP (TYP)NTS24VM-3ASUB-BASESLOTTED 3-INCHSCH 40 PIPEVAPOR LINER(SEE SPECIFICATION #1)CONCRETE FLOOR SLABBASE COURSE(SEE SPECIFICATION #1)T.O.C.25NTSVM-3AVIMS AT ELEVATOR PIT (TYP)CONTINUOUS VAPOR LINERSEALED PER MANUFACTURERINSTRUCTIONSSUMP PITSUB-BASEBASE COURSE(SEE SPECIFICATION #1)VAPOR LINER(SEE SPECIFICATION #1)OVERLAP WATERPROOFING WITHVAPOR BARRIER TO CREATECONTINUOUS SEALCONTINUOUS 60-MILWATERPROOFING MEMBRANE(SEE SPECIFICATION #13)EXTERIOR PERMANENT VACUUM MEASURING POINT (TYP)22NTSVM-3AWALL (VARIES)PROVIDE LOCKABLE WEATHERPROOFENCLOSURE ON OUTSIDE OF BUILDINGWALL (OR SIMILAR). AFFIX LABEL ATBOX WITH "VAPOR MITIGATION SYSTEM".PLACE REMOVABLE PIPE PLUG AT ENDOF 2" PIPE.VAPOR LINER SEALED TO CONCRETE PERMANUFACTURERS INSTRUCTIONS (TYP)2" SCH 40 PVC 90DEGREE ELBOW2" SOLID SCH 40 PVC PIPEINSTALLER SHALL SECURE PIPE TOPREVENT MOVEMENT OR DAMAGE TOPIPE DURING THE CONCRETE POUREXTERIOR GRADE(VARIES)BASE COURSE(SEE SPECIFICATION #1)2" OPEN ENDED PIPE, PLACED AT A MINIMUM OF5' FROM EXTERIOR TURN-DOWN SLABSVENT PIPE PROTECTION SCREENPIPE SLEEVE. SEE SPECIFICATION #11. SLEEVESHALL NOT PENETRATE VAPOR LINER.VAPOR LINER(SEE SPECIFICATION #1)VAPOR LINER SEALED TO PIPE PERMANUFACTURERS INSTRUCTIONS (TYP)FINISHED FLOOR SLAB2" SCH 40 PVC SET WITHIN GRAVEL LAYER(SEE DETAIL 14 & 15)2" DRAIN EXPANSION TEST PLUGVIMS MONITORING POINT - TYPICAL DETAIL VIEWNTS21VM-3AVAPOR BARRIER PENETRATION SEALED TOPIPE PER MANUFACTURER INSTRUCTIONS2" SCH 40 PVC 90 DEGREE ELBOWFLOOR CLEANOUT, ADJUSTABLE, 4" DIA ZURNINDUSTRIES MODEL #CO2450-PV4 (OR ENGINEERAPPROVED EQUIVALENT) FLUSH WITH FINISHED FLOORBASE COURSE(SEE SPECIFICATION #1)4" x 2" FLUSH REDUCERBUSHING2" VENT PIPEPROTECTION SCREENVAPOR MITIGATION PLAN PREPARED BY:2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologyISSUED FOR CONSTRUCTIONVIMS SPECIFICATIONS1.VIMS VAPOR LINER SHALL BE VAPORBLOCK PLUS 20 (VBP20) 20-MIL VAPOR LINER MANUFACTURED BY RAVEN INDUSTRIES (RAVEN). AS AN ALTERNATIVE, DRAGO WRAP 20-MIL VAPOR LINERMANUFACTURED BY STEGO INDUSTRIES, LLC (STEGO) CAN BE USED, PENDING APPROVAL BY THE ENGINEER.NOTE THAT ONE VAPOR LINER PRODUCT AND ASSOCIATED ACCESSORIES MUST BE USED THROUGHOUT EACH SYSTEM. TWO DIFFERENT VAPOR LINER PRODUCTS SHALL NOT BE SEALED TOGETHER. THEVAPOR LINER SHALL BE INSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER INSTALLATION INSTRUCTIONS TO CREATE A CONTINUOUS LINER BELOW MITIGATED AREAS, AND ALONG RETAININGWALLS AND SLAB-ON-GRADE FOLDS WITHIN THE EXTENT OF VAPOR LINER BOUNDARY. A MINIMUM 5-INCH THICK BASE COURSE CONSISTING OF CLEAN #57 STONE (WASHED WITH NO FINES) SHALL BEINSTALLED BENEATH THE VIMS VAPOR LINER. A SIMILAR HIGH PERMEABILITY STONE MAY BE USED, PENDING APPROVAL BY THE ENGINEER.THE VAPOR LINER SHALL BE PROPERLY SEALED IN ACCORDANCE WITH THE MANUFACTURER INSTALLATION INSTRUCTIONS AS SPECIFIED IN THESE DRAWINGS TO FOOTERS, SLAB STEPS, RETAINING WALLS,PENETRATIONS (SUCH AS PIPE PENETRATIONS), OR OTHER BUILDING COMPONENTS WITHIN THE VIMS EXTENTS. VAPOR LINER SHALL BE INSTALLED UNDER CMU WALLS WHICH SUPPORT OCCUPIEDENCLOSED SPACES.VAPOR BARRIER SHALL BE INSTALLED ON SLABS, WALLS, AND OTHER STRUCTURAL COMPONENTS WHICH COME IN CONTACT WITH BOTH AN OCCUPIABLE ENCLOSED SPACE AND SOIL.VAPOR BARRIER SHALL BE TERMINATED PRIOR TO CONTACT WITH NON-MITIGATED AREAS, INCLUDING THE GROUND SURFACE.ALL CONCRETE BOXOUTS, INCLUDING BUT NOT LIMITED TO SHOWER/BATH TUB DRAINS, SHALL HAVE A CONTINUOUS VAPOR LINER INSTALLED BELOW.2.SUB-SLAB SLOTTED VAPOR COLLECTION PIPE SHALL BE THREADED FLUSH JOINT 3" SCH 40 PVC PIPE WITH 0.020" SLOT WIDTH AND 18" SLOT SPACING. PVC PIPE JOINTS SHALL BE CONNECTED USING PVCSOCKET COUPLINGS AND PVC GLUE. SLOTTED COLLECTION PIPING SHALL BE SET WITHIN A MINIMUM 5” BASE COURSE LAYER, WITH APPROXIMATELY 1” OF BASE COURSE MATERIAL ABOVE AND BELOW THEPIPING. 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.3.3" SCH 40 PVC RISER DUCT PIPING SHALL BE INSTALLED TO CONNECT EACH SLAB PENETRATION LOCATION TO A ROOFTOP EXHAUST DISCHARGE POINT WITH TURBINE FAN (SEE SPECIFICATION #4).ABOVE-SLAB RISER DUCT PIPE RUNS BETWEEN THE SLAB PENETRATION AND THE ROOFTOP EXHAUST DISCHARGE SHALL BE INSTALLED PER APPLICABLE BUILDING CODE AND AS SPECIFIED IN THECONSTRUCTION DOCUMENTS AND DRAWINGS. VERTICAL RISER PIPING MUST BE INSTALLED PER 2018 NORTH CAROLINA STATE PLUMBING CODE.4.3” SCH 40 PVC RISER DUCT PIPING SHALL EXTEND IN A VERTICAL ORIENTATION THROUGH THE BUILDING ROOF AND TERMINATE A MINIMUM OF 2 FT ABOVE THE BUILDING ROOF LINE. EMPIRE MODELTV04SS STAINLESS STEEL TURBINE VENTILATOR FANS (OR ALTERNATE APPROVED BY ENGINEER) SHALL BE INSTALLED ON THE EXHAUST DISCHARGE END OF EACH RISER DUCT PIPE. A 3" HEAVY DUTY NO HUBCOUPLING SHALL BE INSTALLED AT THE DISCHARGE END OF THE 3" RISER DUCT PIPE AND THE FAN SHALL BE SECURED TO THE PVC RISER IN A VERTICAL ORIENTATION. EXHAUST DISCHARGE LOCATIONSSHALL 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 MAYBE REPOSITIONED AS LONG AS THE NEW POSITION MEETS THE REQUIREMENTS PRESENTED ABOVE, PENDING ENGINEER APPROVAL. AN ELECTRICAL JUNCTION BOX (120V, 60HZ AC REQUIRED) FOROUTDOOR USE SHALL BE INSTALLED NEAR THE FAN LOCATION ON THE ROOFTOP FOR POTENTIAL FUTURE CONVERSION TO ELECTRIC FANS, IF REQUIRED. ALL WIRING AND ELECTRICAL SHALL BE INSTALLEDPER APPLICABLE BUILDING AND ELECTRICAL CODES.5.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. CONTACTMAINTENANCE". LABELS SHALL ALSO BE FIXED TO THE TURBINE FANS IN AN ACCESSIBLE LOCATION ON THE ROOFTOP.6.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 5” SECTION OF PIPING SHALL BE SET WITHIN THE BASECOURSE LAYER WITH A VENT PIPE PROTECTION SCREEN AT THE TERMINATION. THE PIPE TERMINATION SHALL BE ENCASED WITHIN THE BASE COURSE LAYER. THE HORIZONTAL PIPING SHALL BE SLOPED AMINIMUM 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. A4-INCH DIAMETER ADJUSTABLE FLOOR CLEAN-OUT (ZURN INDUSTRIES MODEL #CO2450-PV4, OR EQUIVALENT) SHALL BE INSTALLED AND SET FLUSH WITH THE CONCRETE SURFACE. EXTERIOR MONITORINGPOINT RISERS SHALL INCLUDE OF TWO 90-DEGREE ELBOWS TO FORM AN "S" SHAPE. THE PIPE TERMINATION SHALL BE COVERED IN A WEATHERPROOF ENCLOSURE ON OUTSIDE OF WALL. THE PIPETERMINATION SHALL BE APPROXIMATELY 2' ABOVE THE EXTERIOR GRADE.7.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS SHALL USE "LOW OR NO VOC" PRODUCTS AND MATERIALS, WHEN POSSIBLE. THE CONSTRUCTION CONTRACTOR AND SUB-CONTRACTORS SHALLPROVIDE SAFETY DATA SHEETS (SDS) TO THE ENGINEER FOR THE PRODUCTS AND MATERIALS USED FOR CONSTRUCTION OF THE VIMS.8.IN INSTANCES WHERE A THICKENED FOOTING OR RETAINING WALL IS NOT SPECIFIED AT THE EXTENT OF VAPOR LINER, A THICKENED SLAB OR FOOTER SHALL BE INSTALLED BY THE CONTRACTOR THATINCLUDES A SOIL SUBBASE. THE ADDITIONAL THICKENED SLAB OR FOOTER SHALL ALLOW FOR DISCONTINUOUS GRAVEL BETWEEN THE VIMS EXTENTS AND EXTERIOR PORTIONS OF THE BUILDING WITH ATLEAST 12" SEPARATION OF ADJACENT GRAVEL BEDS. THE THICKENED SLAB OR FOOTER SHALL BE A MINIMUM OF 5" GREATER IN THICKNESS THAN THE SURROUNDING SLAB.9.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS SHALL AVOID THE USE OF TEMPORARY FORM BOARDS THAT PENETRATE THE VAPOR LINER WHERE POSSIBLE. IF TEMPORARY FORM BOARDS AREUSED, THE SIZE AND NUMBER OF PENETRATIONS THROUGH THE VAPOR LINER SHALL BE LIMITED AND SMALL DIAMETER STAKES (I.E. METAL STAKES) SHALL BE USED. IN ALL CASES, AS FORM BOARDS AREREMOVED, THE CONTRACTOR OR SUB-CONTRACTORS SHALL RESEAL ALL PENETRATIONS IN ACCORDANCE WITH VAPOR LINER MANUFACTURER INSTALLATION INSTRUCTIONS.10.INSPECTIONS: INSPECTIONS OF EACH COMPONENT OF THE VIMS SHALL BE CONDUCTED BY THE ENGINEER, OR ENGINEER'S DESIGNEE, TO CONFIRM VIMS COMPONENTS ARE INSTALLED PER THE APPROVEDDESIGN. THE REQUIRED INSPECTION COMPONENTS INCLUDE: (1) INSPECTION OF SUB-SLAB PIPING LAYOUT, (2) GRAVEL PLACEMENT, AND (3) MONITORING POINT PLACEMENT PRIOR TO INSTALLING VAPORBARRIER; (4) INSPECTION OF VAPOR BARRIER PRIOR TO POURING CONCRETE; (5) INSPECTION OF ABOVE-GRADE PIPING LAYOUT; AND (6) INSPECTION OF TURBINE FANS AND RISER DUCT PIPE CONNECTIONS.INSPECTIONS WILL BE COMBINED WHEN POSSIBLE DEPENDING ON THE CONSTRUCTION SEQUENCE/SCHEDULE. THE CONSTRUCTION CONTRACTOR(S) SHALL COORDINATE WITH THE ENGINEER TO PERFORMTHE REQUIRED INSPECTIONS. A MINIMUM 48-HOUR NOTICE SHALL BE GIVEN TO THE ENGINEER PRIOR TO THE REQUIRED INSPECTION(S).11.FOAM PIPE SLEEVES, OR SIMILAR, SHALL BE INSTALLED AROUND HORIZONTAL PORTIONS OF PIPES THAT PENETRATE CONCRETE FOOTERS AND WALLS PER APPLICABLE STRUCTURAL PLANS AND BUILDINGCODES, OR AS OTHERWISE DIRECTED BY THE APPLICABLE PLANS AND CONSTRUCTION ENGINEERS. PIPE SLEEVES SHALL BE PROPERLY SEALED TO PREVENT A PREFERENTIAL AIR PATHWAY FROM BELOW THESLAB INTO THE BUILDING. PIPE SLEEVES SHALL BE INSTALLED ONLY IN SECTIONS OF THE VIMS WHICH WILL COME INTO DIRECT CONTACT WITH CONCRETE.12.THIS VAPOR MITIGATION PLAN IS INTENDED TO BE USED FOR DIRECTION OF VIMS COMPONENT INSTALLATION ONLY AND IS NOT INTENDED TO GUIDE CONSTRUCTION OF STRUCTURAL COMPONENTS NOTRELATED TO THE VIMS. CONSTRUCTION CONTRACTOR SHALL VERIFY CONSISTENCY OF VIMS DETAILS WITH APPLICABLE STRUCTURAL, ARCHITECTURAL, MECHANICAL, & PLUMBING PLANS AND RESOLVE ANYINCONSISTENCIES PRIOR TO VIMS INSTALLATION.13.WATERPROOFING USED ALONG ELEVATOR PITS AND INTERIOR RETAINING WALLS SHALL EXHIBIT THE CHARACTERISTICS OF AN ASTM E1745 VAPOR RETARDER CLASS A MATERIAL, OR OTHERWISE APPROVEDBY THE DESIGN ENGINEER. THESE CHARACTERISTICS INCLUDE A MINIMUM 60-MIL THICKNESS, PERMEANCE OF LESS THAN <0.1 PERMS, MINIMUM TENSILE STRENGTH OF 45 PSI, AND MINIMUM PUNCTURERESISTANCE OF 2,200 GRAMS. THE PROFESSIONAL ENGINEER SEALING THIS PLAN STATES THAT SUCH WATERPROOFING WITH THESE CHARACTERISTICS IN THESE LIMITED LOCATIONS WILL MITIGATE VAPORINTRUSION. THE VAPOR BARRIER SHALL BE INSTALLED BETWEEN WATERPROOFING AND ANY DRAINAGE FEATURES WHERE IT OVERLAPS (SEE DETAIL #25). THE INSTALLER SHALL CONFIRM THAT THEWATERPROOFING PRODUCTS USED DURING CONSTRUCTION ARE COMPATIBLE WITH THE SPECIFIED VAPOR BARRIER. VAPOR BARRIER SHALL BE CONTINUOUS IF WATERPROOFING IS NOT APPLIED.NOTES:VIMS = VAPOR INTRUSION MITIGATION SYSTEMTYP = TYPICALSCH = SCHEDULEPVC = POLYVINYL CHLORIDENTS = NOT TO SCALEALL PIPE MEASUREMENTS ARE BY DIAMETERH&H NO. AKR-005VIMS DETAILS#21 - 25 ANDSPECIFICATIONSAPRIL 1, 2021VM-3APROFESSIONALAPPROVALREVISION 1CRAYTON PRINTING
DISTRIBUTION STREET AND DUNAVANT STREET
CHARLOTTE, NORTH CARLINA
BROWNFIELDS PROJECT NO. 24025-20-060
S:\AAA-Master Projects\Akridge\AKR.005 Dunavant Brownfields Assessment\VIMP\Figures\Addendum\VIMS Details.dwg, VM-3A, 4/1/2021 2:16:41 PM, SVincent
Attachment B
Vapor Intrusion Assessment Data Summary
Table 4 Summary of Sub-Slab Vapor and Soil Gas Analytical DataCrayton Printing Charlotte, North CarolinaH&H Job No. AKR-005Evaluation AreaSample IDSS-1 SS-2 SS-3 SS-4 SS-5 SS-6 SS-7 SG-1 SG-2 SG-3 SG-5Sample DateSample Type UnitsVOCs (TO-15)Acetone24 55 29 76 180 42 28<11 <1121<11 <1129220,000Benzene<0.190.49 J 0.43 J 0.83<0.190.43 J<0.1913 26 17 32 310.66122-Butanone (MEK)3.9 J 8.2 J 4.6 J 11 J 12 J 6.1 J 5.3 J 3.9 J 15 J 3.0 J 3.5 J 4.9 J 4.4 J35,000Carbon Disulfide<1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6220 550 110 470 480<1.64,900Carbon Tetrachloride<0.33 <0.330.40 J<0.33 <0.33 <0.33 <0.33 <0.33 <0.33 <0.33 <0.330.83 J<0.3316Chloroform<0.24 <0.24 <0.24 <0.24 <0.24 <0.24 <0.242.3<0.241.6<0.24 <0.24 <0.244.1Chloromethane<0.32 <0.32 <0.32 <0.32 <0.32 <0.320.92<0.32 <0.32 <0.32 <0.32 <0.32 <0.32630Cyclohexane<0.34 <0.34 <0.34 <0.34 <0.34 <0.34 <0.34 <0.34 <0.34 <0.34 <0.3413<0.3442,000Dichlorodifluoromethane (Freon 12) <0.31 <0.3119<0.31 <0.31 <0.311200<0.31 <0.31 <0.31 <0.31 <0.31 <0.317001,1-Dichloroethane<0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.257.1 7.2<0.2558Ethanol110 330 170 510 90 140 47 26 15 J 15<4.6 <4.6 <4.6NEEthylbenzene2.3 1.1 0.56 J 2.2 1.6 0.76 J<0.18150 170 230 210 20016374-Ethyltoluene<0.30 <0.30 <0.301.9<0.30 <0.30 <0.3062 56 100 120 110 4.9NEHeptane<0.35 <0.35 <0.35 <0.35 <0.35 <0.35 <0.356.8 100 4.8<0.3514<0.352,800Hexane<1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3200<1.351 51<1.34,900Isopropanol5.5 J 16 J 5.0 J 20 J 20<4.5 <4.5 <4.5 <4.5 <4.5 <4.5 <4.5 <4.51,400Methyl tert-butyl ether <0.29 <0.29 <0.29 <0.29 <0.29 <0.29 <0.29 <0.29 <0.292.2<0.29 <0.29 <0.29360Methylene Chloride1.6 J<1.62.6 J<1.6 <1.63.9 J<1.62.0 J<1.6 <1.6 <1.6 <1.6 <1.63,400Naphthalene2.6<0.59152.4 1.8<0.59 <0.59 <0.59 <0.59 <0.59 <0.59 <0.59 <0.592.8Propene<1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.295 760 4.6 J 88 87<1.221,000Styrene<0.24 <0.24 <0.240.75 J<0.24 <0.24 <0.24 <0.24 <0.24 <0.24 <0.24 <0.24 <0.247,000Tetrachloroethylene<0.4411002.5<0.441.3 J 15 3.0 17 12 18 31 30 2.3280Toluene9.4 4.5 2.9 9.4 9.5 3.7 1.9 520 690 700 650 620 2435,0001,1,1-Trichloroethane0.55 J<0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.3635,000Trichloroethylene<0.409.2<0.40 <0.40 <0.40 <0.40 <0.405.2<0.40 <0.40 <0.40 <0.40 <0.4014Trichlorofluoromethane (Freon 11)20 1.4 J 1.4 J 1.2 J 1.2 J 2.0 J 1.3 J 2.7 J 1.7 J 1.0 J 1.2 J<0.85 <0.85NE1,2,4-Trimethylbenzene9.0<0.22 <0.229.4 7.5 2.7<0.22150 130 240 240 230 204201,3,5-Trimethylbenzene1.5 0.77 J<0.261.6 1.3 0.43 J<0.2639 34 65 73 69 4.2420m&p-Xylene11 4.8 2.4 10 7.3 3.3<0.30550 580830700 680 64700o-Xylene4.2 1.9 0.90 3.9 2.9 1.3<0.23190 190 280 240 220 26700Notes:1) North Carolinia Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Residential Vapor Intrusion Soil Gas Screening Levels (SGSLs) dated July 2020Concentrations are reported in micrograms per cubic meter (µg/m3).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses. Only compounds detected in at least one sample are shown in the above table.VOCs = volatile organic compounds; NE = Not EstablishedJ = Compound was detected above the laboratory method detction limit, but below the laboratory reporting limit resulting a laboratory estimated concentration.Residential SGSLs (1)µg/m3Proposed Parking Garage Proposed Apartment Building Exterior Soil Gas SG-4 / SG-DUP9/14/2020Sub-Slab9/10/2020S:\AAA‐Master Projects\Akridge\AKR.005 Dunavant Brownfileds Assessment\Report\Tables\Data Tables.xlsx10/1/2020Table 4 (Page 1 of 1)Hart & Hickman, PC
#
#
#
#
#
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"D
"D
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"GÑ
!
!
!!Ñ!!
#
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SS-1
SS-2
SS-3
SS-4
SS-5
SG-2
SG-4
SG-1/SB-2
SG-5/SB-5
SG-5/SB-7
TMW-1/SB-1
TMW-3/SB-6
TMW-4/SB-8
SB-3
SB-4
SB-9 SB-10 TMW-2
SS-7
SG-3
SS-6
726
710726
730
724
72 2
728
712
7 2 6
724
7 2 2
714 718716
720
SAMPLE LOCATION MAP
CRAYTON PRINTINGDISTRIBUTION STREET AND DUNAVANT STREETCHARLOTTE, NORTH CAROLINA
REVISION NO: 0
FIGURE NO: 4
2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology
0 50 100
SCALE IN FEET
N
DATE: 9-28-20
JOB NO. AKR-005
DUNAVANT STREET
DISTRIBUTION STREETNOTE:
1. BASE DATA OBTAINED FROM MECKLENBURG COUNTY GIS, 2020.
2. ELEVATION DATA OBTAINED FROM MECKLENBURG COUNTY LIDAR, 2013.Path: \\HHFS01\Redirectedfolders\sperry\My Documents\ArcGIS\PROJECTS\AKR-005\FIGURE 4 - Sample Location Map.mxdHAWKINS STREETPROPOSEDCOURTYARD
PROPOSEDPARKING DECK
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
PARCEL BOUNDARY LINE
ELEVATION CONTOUR
!SOIL BORING
"¬SOIL GAS SAMPLE
"D CO-LOCATED SOIL GAS SAMPLE AND SOILBORING
#SUB-SLAB SOIL VAPOR SAMPLE
Ñ!!TEMPORARY MONITORING WELL
"GÑ CO-LOCATED TEMPORARY MONITORING WELLAND SOIL BORING
PROPOSED BUILDING FOOTPRINT
PROPOSED PARKING DECK
PROPOSED RESIDENTIAL
PROPOSED SERVICE OR AMENITY
"GÑ
"GÑ
"GÑ
Ñ!!
TMW-1/SB-1
TMW-3/SB-6
TMW-4/SB-8
TMW-2
726
710726
730
724
72 2
728
712
7 2 6
724
7 22
714 718716
720
SHALLOW GROUNDWATERPOTENTIOMETRIC MAP
CRAYTON PRINTINGDISTRIBUTION STREET AND DUNAVANT STREETCHARLOTTE, NORTH CAROLINA
REVISION NO: 0
FIGURE NO: 5
2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology
0 50 100
SCALE IN FEET
N
DATE: 9-28-20
JOB NO. AKR-005
DUNAVANT STREET
DISTRIBUTION STREETNOTE:
1. BASE DATA OBTAINED FROM MECKLENBURG COUNTY GIS, 2020.
2. ELEVATION DATA OBTAINED FROM MECKLENBURG COUNTY LIDAR, 2013.Path: \\HHFS01\Redirectedfolders\sperry\My Documents\ArcGIS\PROJECTS\AKR-005\FIGURE 5 - GW Gradient Map.mxdHAWKINS STREETPROPOSEDCOURTYARD
PROPOSEDPARKING DECK
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
PARCEL BOUNDARY LINE
ELEVATION CONTOUR
Ñ!!TEMPORARY MONITORING WELL
"GÑ CO-LOCATED TEMPORARY MONITORINGWELL AND SOIL BORING
PROPOSED BUILDING FOOTPRINT
PROPOSED PARKING DECK
PROPOSED RESIDENTIAL
PROPOSED SERVICE OR
GROUNDWATER ELEVATION (FT.)
INFERRED GROUNDWATER CONTOUR (FT.)
INFERRED DIRECTION OF GROUNDWATERFLOW9092
94969 4
100
(100.32)
(90.79)
(93.94)
(90.11)
(100.32)100
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
Site Wide Soil Gas - Hypothetical Worst Case
North Carolina Department of Environmental Quality
Risk Calculator
Crayton Printing
Dunavant Street and Distribution Street
Division of Waste Management - Brownfields Program
24025-20-060
July 2020
May 2020 EPA RSL Table
Prepared By:Haley Martin, PG
Matt Bramblett, PE
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 24025-20-060
Exposure Unit ID: Site Wide Soil Gas - Hypothetical Worst Case
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration to Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 24025-20-060
Exposure Unit ID: Site Wide Soil Gas - Hypothetical Worst Case
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point ConcentrationsVersion Date: July 2020Basis: May 2020 EPA RSL TableSite ID: 24025-20-060Exposure Unit ID: Site Wide Soil Gas - Hypothetical Worst CaseDescription of Exposure Point Concentration Selection:Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.Exposure Point Concentration (ug/m3)Notes: CAS Number ChemicalMinimum Concentration (Qualifier)Maximum Concentration (Qualifier)UnitsLocation of Maximum ConcentrationDetection FrequencyRange of Detection LimitsConcentration Used for ScreeningBackground ValueScreening Toxicity Value (Screening Level) (n/c)Potential ARAR/TBC ValuePotential ARAR/TBC SourceCOPC Flag (Y/N)Rationale for Selection or Deletion180 67-64-1 Acetoneug/m332 71-43-2 Benzeneug/m3550 75-15-0 Carbon Disulfideug/m30.83 56-23-5 Carbon Tetrachlorideug/m32.3 67-66-3 Chloroformug/m30.92 74-87-3 Chloromethaneug/m313 110-82-7 Cyclohexaneug/m31200 75-71-8 Dichlorodifluoromethaneug/m37.2 75-34-3 Dichloroethane, 1,1-ug/m3230 100-41-4 Ethylbenzeneug/m3100 142-82-5 Heptane, N-ug/m3200 110-54-3 Hexane, N-ug/m320 67-63-0 Isopropanolug/m315 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m32.2 1634-04-4 Methyl tert-Butyl Ether (MTBE)ug/m33.9 75-09-2 Methylene Chlorideug/m315 91-20-3 ~Naphthaleneug/m3760 115-07-1 Propyleneug/m30.75 100-42-5 Styreneug/m31100 127-18-4 Tetrachloroethyleneug/m3700 108-88-3 Tolueneug/m30.55 71-55-6 Trichloroethane, 1,1,1-ug/m39.2 79-01-6 Trichloroethyleneug/m3240 95-63-6 Trimethylbenzene, 1,2,4-ug/m373 108-67-8 Trimethylbenzene, 1,3,5-ug/m31110 1330-20-7 Xylenesug/m3Input Form 2DSoil Gas Exposure Point Concentration TableNorth Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 24025-20-060
Exposure Unit ID: Site Wide Soil Gas - Hypothetical Worst Case
Receptor Pathway
Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use* NC NC NC
Soil NC NC NC
Groundwater Use* NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water* NC NC NC
Receptor Pathway
Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.9E-05 2.0E+00 YES
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 24025-20-060
Exposure Unit ID: Site Wide Soil Gas - Hypothetical Worst Case
CAS # Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated Indoor Air Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated Carcinogenic Risk
Calculated
Non-Carcinogenic Hazard Quotient
67-64-1 Acetone 180 5.4 - 6.5E+03 1.7E-04
71-43-2 Benzene 32 0.96 3.6E-01 6.3E+00 2.7E-06 3.1E-02
75-15-0 Carbon Disulfide 550 16.5 - 1.5E+02 2.3E-02
56-23-5 Carbon Tetrachloride 0.83 0.0249 4.7E-01 2.1E+01 5.3E-08 2.4E-0467-66-3 Chloroform 2.3 0.069 1.2E-01 2.0E+01 5.7E-07 6.8E-0474-87-3 Chloromethane 0.92 0.0276 - 1.9E+01 2.9E-04
110-82-7 Cyclohexane 13 0.39 - 1.3E+03 6.2E-05
75-71-8 Dichlorodifluoromethane 1200 36 - 2.1E+01 3.5E-01
75-34-3 Dichloroethane, 1,1- 7.2 0.216 1.8E+00 - 1.2E-07
100-41-4 Ethylbenzene 230 6.9 1.1E+00 2.1E+02 6.1E-06 6.6E-03
142-82-5 Heptane, N- 100 3 - 8.3E+01 7.2E-03
110-54-3 Hexane, N- 200 6 - 1.5E+02 8.2E-0367-63-0 Isopropanol 20 0.6 - 4.2E+01 2.9E-03
78-93-3 Methyl Ethyl Ketone (2-Butanone) 15 0.45 - 1.0E+03 8.6E-05
1634-04-4 Methyl tert-Butyl Ether (MTBE) 2.2 0.066 1.1E+01 6.3E+02 6.1E-09 2.1E-05
75-09-2 Methylene Chloride 3.9 0.117 1.0E+02 1.3E+02 1.2E-09 1.9E-04
91-20-3 ~Naphthalene 15 0.45 8.3E-02 6.3E-01 5.4E-06 1.4E-01
115-07-1 Propylene 760 22.8 - 6.3E+02 7.3E-03
100-42-5 Styrene 0.75 0.0225 - 2.1E+02 2.2E-05127-18-4 Tetrachloroethylene 1100 33 1.1E+01 8.3E+00 3.1E-06 7.9E-01108-88-3 Toluene 700 21 - 1.0E+03 4.0E-03
71-55-6 Trichloroethane, 1,1,1- 0.55 0.0165 - 1.0E+03 3.2E-06
79-01-6 Trichloroethylene 9.2 0.276 4.8E-01 4.2E-01 5.8E-07 1.3E-01
95-63-6 Trimethylbenzene, 1,2,4- 240 7.2 - 1.3E+01 1.2E-01
108-67-8 Trimethylbenzene, 1,3,5- 73 2.19 - 1.3E+01 3.5E-02
1330-20-7 Xylenes 1110 33.3 - 2.1E+01 3.2E-01
Cumulative: 1.9E-05 2.0E+00
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator

Attachment C-1

VaporBlock 20 (VBP-20) Product Specification Sheets & Installation Instructions
PRODUCT PART #
VaporBlock® Plus™ 20 ................................................................ VBP20
UNDER-SLAB VAPOR / GAS BARRIER
Under-Slab Vapor/Gas Retarder
© 2018 RAVEN INDUSTRIES INC. All rights reserved.
VAPORBLOCK® PLUS™VBP20
PRODUCT DESCRIPTION
VaporBlock® Plus™ is a seven-layer co-extruded barrier
made using high quality virgin-grade polyethylene and
EVOH resins to provide unmatched impact strength as well
as superior resistance to gas and moisture transmission.
VaporBlock® Plus™ 20 is more than 100 times less permeable
than typical high-performance polyethylene vapor retarders
against Methane, Radon, and other harmful VOCs. Tested and
verified for unsurpassed protection against BTEX, HS, TCE, PCE,
methane, radon, other toxic chemicals and odors.
VaporBlock® Plus™ 20 multi-layer gas barrier is manufactured
with the latest EVOH barrier technology to mitigate hazardous
vapor intrusion from damaging indoor air quality, and the safety
and health of building occupants. VBP20 is one of the most
effective underslab gas barriers in the building industry today
far exceeding ASTM E-1745 (Plastic Water Vapor Retarders
Used in Contact with Soil or Granular Fill Under Concrete Slabs)
Class A, B and C requirements. Available in a 20 (Class A) mil
thicknesses designed to meet the most stringent requirements.
VaporBlock® Plus™ 20 is produced within the strict guidelines
of our ISO 9001 Certified Management System.
PRODUCT USE
VaporBlock® Plus™ 20 resists gas and moisture migration
into the building envelop when properly installed to provide
protection from toxic/harmful chemicals. It can be installed as
part of a passive or active control system extending across the
entire building including floors, walls and crawl spaces. When
installed as a passive system it is recommended to also include
a ventilated system with sump(s) that could be converted to an
active control system with properly designed ventilation fans.
VaporBlock® Plus™ 20 works to protect your flooring and
other moisture-sensitive furnishings in the building’s interior
from moisture and water vapor migration, greatly reducing
condensation, mold and degradation.
SIZE & PACKAGING
VaporBlock® Plus™ 20 is available in 10’ x 150’ rolls to
maximize coverage. All rolls are folded on heavy-duty cores
for ease in handling and installation. Other custom sizes
with factory welded seams are available based on minimum
volume requirements. Installation instructions and ASTM E-1745
classifications accompany each roll.
APPLICATIONS
Radon Barrier
Methane Barrier
VOC Barrier
Brownfields Barrier
Vapor Intrusion Barrier
Under-Slab Vapor Retarder
Foundation Wall Vapor Retarder
VaporBlock® Plus™ is a seven-layer co-extruded barrier made using high quality virgin-grade polyethylene and EVOH resins to provide unmatched impact strength as well as superior resistance to gas and moisture transmission.
VaporBlock® Plus™ Placement
All instructions on architectural or structural drawings should be reviewed and followed.
Detailed installation instructions accompany each roll of VaporBlock® Plus™ and can also be located at www.ravenefd.com.
ASTM E-1643 also provides general installation information for vapor retarders.
VAPORBLOCK® PLUS™ 20
PROPERTIES TEST METHOD IMPERIAL METRIC
AppeArAnce White/Gold
Thickness, nominAl 20 mil 0.51 mm
WeighT 102 lbs/MSF 498 g/m²
clAssificATion ASTM E 1745 CLASS A, B & C
³ Tensile sTrengTh
ASTM E 154Section 9(D-882)58 lbf 102 N
impAcT resisTAnce ASTM D 1709 2600 g
permeAnce (neW mATeriAl)
ASTM E 154Section 7ASTM E 96Procedure B
0.0098 Perms
grains/(ft²·hr·in·Hg)
0.0064 Perms
g/(24hr·m²·mm Hg)
permeAnce (AfTer condiTioning)
(sAme meAsuremenT As Above permeAnce)
ASTM E 154Section 8, E96Section 11, E96Section 12, E96Section 13, E96
0.00790.00790.00970.0113
0.00520.00520.00640.0074
WvTr ASTM E 96Procedure B 0.0040 grains/hr-ft²0.0028 gm/hr-m²
benzene permeAnce See Note ⁶1.13 x 10-¹⁰ m²/sec or 3.62 x 10-¹³ m/s
Toluene permeAnce See Note ⁶1.57 x 10-¹⁰ m²/sec or 1.46 x 10-¹³ m/s
eThylbenzene permeAnce See Note ⁶1.23 x 10-¹⁰ m²/sec or 3.34 x 10-¹⁴ m/s
m & p-Xylenes permeAnce See Note ⁶1.17 x 10-¹⁰ m²/sec or 3.81 x 10-¹⁴ m/s
o-Xylene permeAnce See Note ⁶1.10 x 10-¹⁰ m²/sec or 3.43 x 10-¹⁴ m/s
hydrogen sulfide See Note 9 1.92E-⁰⁹ m/s
TrichloroeThylene (Tce) See Note ⁶7.66 x 10-¹¹ m²/sec or 1.05 x 10-¹⁴ m/s
perchloroeThylene (pce)See Note ⁶7.22 x 10-¹¹ m²/sec or 1.04 x 10-¹⁴ m/s
rAdon diffusion coeffiecienT K124/02/95 < 1.1 x 10-13 m2/s
meThAne permeAnce ASTM D 1434 3.68E-¹² m/sGas Transmission Rate (GTR):0.32 mL/m²•day•atm
mAXimum sTATic use TemperATure 180° F 82° C
minimum sTATic use TemperATure - 70° F - 57° C
UNDER-SLAB VAPOR / GAS BARRIER
VAPORBLOCK® PLUS™VBP20
© 2018 RAVEN INDUSTRIES INC. All rights reserved.
Scan QR Code to download
current technical data sheets
via the Raven website.
Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be performed for applicability in specific applications and/or conditions. RAVEN INDUSTRIES MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at www.RavenEFD.com
061318 EFD 1125
RAVEN ENGINEERED FILMSP.O. Box 5107 Sioux Falls, SD 57117-5107Ph: [phone] • TF: [phone] [e-mail]
³ Tests are an average of machine and transverse directions.5 Raven Industries performs seam testing at 20” per minute.6 Aqueous Phase Film Permeance. Permeation of Volatile Organic Compounds through EVOH Thin Film Membranes and Coextruded LLDPE/EVOH/
LLDPE Geomembranes, McWatters and Rowe, Journal of Geotechnical and Geoenvironmental Engineering© ASCE/
September 2015. (Permeation is the Permeation Coefficient adjusted to actual film thickness - calculated at 1 kg/m³.)
The study used to determine PCE and TCE is titled: Evaluation of diffusion of PCE & TCE through high performance geomembranes by Di
Battista and Rowe, Queens University 8 Feb 2018.9 The study used to determine diffusion coefficients is titled: Hydrogen Sulfide (H₂S) Transport through Simulated Interim Covers with Conventional and Co-Extruded Ethylene-Vinyl Alcohol (EVOH) Geomembranes.
INSTALLATION GUIDELINES - With VaporSeal™ Tape
VaporSeal™
4” Tape
VaporSeal™ 4” Tape Optional Butyl Seal
2-Sided Tape
Gas Barrier Applications
Elements of a moisture/gas-resistant floor system. General illustration only.(Note: This example shows multiple options for waterstop placement.
VaporSeal™
4” Tape
VaporSeal™ 4” Tape Optional Butyl Seal
2-Sided Tape
Gas Barrier Applications
Fig. 2: VaporBlock® Plus™ Overlap Joint Sealing Methods
Fig. 1: VaporBlock® Plus™ Overlapping Roll-out Method
Please Note: Read these instructions thoroughly before installation to ensure proper use of VaporBlock® Plus™. ASTM E 1465, ASTM E 2121 and, ASTM E 1643 also provide valuable information regarding the installation of vapor / gas barriers. When installing this product, contractors shall conform to all applicable local, state and federal regulations and laws pertaining to residential and commercial building construction.
• When VaporBlock® Plus™ gas barrier is used as part of an active control system for radon or other gas, a ventilation system will be required.
• If designed as a passive system, it is recommended to install a ventilation system that could be converted to an active system if needed.
Materials List:VaporBlock® Plus™ Vapor / Gas BarrierVaporSeal™* 4” Seaming TapeVaporSeal™* 12” Seaming/Repair TapeButyl Seal 2-Sided TapeVaporBoot Plus Pipe Boots 12/Box (recommended)VaporBoot Tape (optional)POUR-N-SEAL™ (optional)1” Foam Weather Stripping (optional)Mako® Screed Supports (optional)
VAPORBLOCK® PLUS™ PLACEMENT
1.1. Level and tamp or roll granular base as specified. A base for a gas-reduction system may require a 4” to 6” gas permeable layer of clean coarse aggregate as specified by your architectural or structural drawings after installation of the recommended gas collection system. In this situation, a cushion layer consisting of a non-woven geotextile fabric placed directly under VaporBlock® Plus™ will help protect the barrier from damage due to possible sharp coarse aggregate.
1.2. Unroll VaporBlock® Plus™ running the longest dimension parallel with the direction of the pour and pull open all folds to full width. (Fig. 1)
1.3. Lap VaporBlock® Plus™ over the footings and seal with Raven Butyl Seal tape at the footing-wall connection. Prime concrete surfaces, when necessary, and assure they are dry and clean prior to applying Raven Butyl Seal Tape. Apply even and firm pressure with a rubber roller. Overlap joints a minimum of 6” and seal overlap with 4” VaporSeal™ Tape. When used as a gas barrier, overlap joints a minimum of 12” and seal in-between overlap with an optional 2-sided Raven Butyl Seal Tape. Then seal with 4” VaporSeal™ Tape centered on the overlap seam. (Fig. 2)
Page 1 of 4 Top original diagram and figure #1 were reprinted with permission by the Portland Cement Association.Reference: Kanare, Howard M., Concrete Floors and Moisture, EB119, Portland Cement Association, Skokie, Illinois, and National Ready Mixed Concrete Association, Silver Spring, Maryland, USA, 2008, 176 pages.
1.4. Seal around all plumbing, conduit, support columns or other penetrations that come through the VaporBlock® Plus™ membrane.
1.4a. Method 1: Pipes four inches or smaller can be sealed with Raven VaporBoot Plus preformed pipe boots. VaporBoot Plus preformed pipe boots are formed in steps for 1”, 2”, 3” and 4” PVC pipe or IPS size and are sold in units of 12 per box (Fig. 3 & 5).
Pipe boots may also be fabricated from excess VaporBlock® Plus™ membrane (Fig. 4 & 6) and sealed with VaporBoot Tape or VaporSeal™ Tape (sold separately).
1.4b. Method 2: To fabricate pipe boots from VaporBlock® Plus™ excess material (see Fig. 4 & 6 for A-F):
A) Cut a square large enough to overlap 12” in all directions.
B) Mark where to cut opening on the center of the square and cut four to eight slices about 3/8” less than the diameter of the pipe.
C) Force the square over the pipe leaving the tightly stretched cut area around the bottom of the pipe with approximately a 1/2” of the boot material running vertically up the pipe. (no more than a 1/2” of stretched boot material is recommended)
D) Once boot is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in between the two layers. Secure boot down firmly over the membrane taking care not to have any large folds or creases.
E) Use VaporBoot Tape or VaporSeal™ Tape to secure the boot to the
pipe.
VaporBoot Tape (option) – fold tape in half lengthwise, remove half of the release liner and wrap around the pipe allowing 1” extra for overlap sealing. Peel off the second half of the release liner and work the tape outward gradually forming a complete seal.
VaporSeal™ Tape (option) - Tape completely around pipe overlapping the VaporBlock® Plus™ square to create a tight seal against the pipe.
F) Complete the process by taping over the boot perimeter edge with VaporSeal™ Tape to create a monolithic membrane between the surface of the slab and gas/moisture sources below and at the slab perimeter. (Fig. 4 & 6)
Preformed Pipe Boot Square Material Pipe Boot
Fig. 3
SINGLE PENETRATION PIPE BOOT INSTALLATION
Fig. 5 Fig. 6
1. Cut a square of VaporBlock® Plus™ barrier to extend at least 12” from the pipe in all directions.
2. Cut four to eight slices about 3/8” less than the diameter of the pipe.
5. Use Raven VaporBoot or VaporSeal™ Tape and overlap 1” at the seam.
4. Tape over the boot perimeter edge with VaporSeal™ Tape.
1. Cut out one of the preformed boot steps (1” to 4”).
2. Tape the underside boot perimeter with 2-sided Butyl Seal Tape.
3. Force the boot over pipe and press tape firmly in place.
4. Use VaporSeal™ Tape
to secure boot to the pipe.
5. Tape around entire boot edge with VaporSeal™ Tape.
VaporBoot Flexible Tapeor VaporSeal™ 4” TapeVaporSeal™ 4” Tape
VaporBlock® Plus™Material
VaporSeal™ 4” Tape
Raven Butyl Seal2-Sided Tape Raven Butyl Seal2-Sided Tape
VaporBoot PlusPreformed Boot 12”(minimum)
3. Force over pipe and tape the underside boot perimeter to existing barrier with 2-sided Butyl Seal Tape.
Fig. 4
Page 2 of 4 Original figure #4 diagram is reprinted with permission by the Portland Cement Association.Reference: Kanare, Howard M., Concrete Floors and Moisture, EB119, Portland Cement Association, Skokie, Illinois, and National Ready Mixed Concrete Association, Silver Spring, Maryland, USA, 2008, 176 pages.Method 1
Method 2
VaporSeal™4” Tape VaporBoot PlusPerformed Boot
Raven Butyl Seal 2-sided Tape Raven Butyl Seal 2-sided Tape
1.5. Sealing side-by-side multiple penetrations (option 1);
A) Cut a patch large enough to overlap 12” in all directions (Fig. 7)
of penetrations.
B) Mark where to cut openings and cut four to eight slices about
3/8” less than the diameter of the penetration for each.
C) Force patch material over penetration to achieve a tight fit and
form a lip.
D) Once patch is positioned, seal the perimeter to the membrane
by applying 2-sided Raven Butyl Seal Tape in-between the two
layers. (Fig. 8)
E) After applying Raven Butyl Seal Tape between the patch and
membrane, tape around each of the penetrations and the patch
with VaporSeal™ 4” tape. (Fig. 9) For additional protection apply
POUR-N-SEAL™ or an acceptable polyurethane elastomeric
sealant around the penetrations. (Fig. 10)
Fig. 7 Fig. 8
Fig. 9 Fig. 10
MULTIPLE PENETRATION PIPE BOOT INSTALLATION
Fig. 6
Cut a patch large enough to overlap 12” in all directions and slide over penetrations (Make openings as tight as possible.)
Once the overlay patch is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in-between the two layers.
After applying Raven Butyl Seal Tapebetween the patch and membrane, tape around the perimeter of the penetration and the patch with VaporSeal™ 4” Tape.
For additional protection apply POUR-N-SEAL™ or an acceptable polyurethane elastomeric sealant around the penetrations.
VaporSeal™ 4” Tape VaporSeal™ 4” Tape
Page 3 of 4
Option 1
Raven Butyl Seal 2-sided Tape
1.6. POUR-N-SEAL™ method of sealing side-by-side multiple penetrations (option 2);
A) Install the vapor barrier as closely as possible to pipe penetrations to minimize the amount of POUR-N-SEAL™ necessary to seal around all penetrations.
B) Once barrier is in place, remove soil or other particles with a dry cloth or a fine broom to allow for improved adhesion to the POUR-N-SEAL™ liquid.
C) Create a dam around the penetration area approximately 2” away from the pipe or other vertical penetrations by removing the release liner from the back of a 1” weather stripping foam and adhere to the vapor barrier. Form a complete circle to contain the POUR-N-SEAL™ materials (Fig. 11).
D) Once mixed, pour contents around the pipe penetrations. If needed, a brush or a flat wooden stick can be used to direct the sealant completely around penetrations creating a complete seal (Fig. 12-13).
E) DO NOT leave excess POUR-N-SEAL™ in plastic container for longer than the time it takes to pour sealant.
Fig. 12 Fig. 13
Fig. 11
Option 2
VAPORBLOCK® PLUS™ REPAIR INSTRUCTIONS
1.7. Proper installation requires all holes and openings are repaired prior
to placing concrete. When patching small holes, simply cut a 12” long
piece of 12” wide VaporSeal™ tape. Remove release liner and center
over the opening. Apply pressure to create a seal (Fig. 14-15).
1.8. When installing VaporBlock® Plus™ around pipe penetrations,
vertical columns, electrical ducts and other obstructions, you will
find it necessary to cut it to the nearest outside edge. This cut can
be easily sealed with 12” wide VaporSeal™ tape, by simply centering
it over the cut, 6” on either side. Once the tape is placed correctly,
apply pressure to assure a complete seal (Fig. 16).
Reminder Note: All holes or penetrations through the membrane will need
to be patched with 12” VaporSeal™ Tape.
Fig. 14
Page 4 of 5
Fig. 15
2.1. When installing reinforcing steel and utilities, in addition to the
placement of concrete, take precaution to protect VaporBlock®
Plus™. Carelessness during installation can damage the most
puncture–resistant membrane. Sheets of plywood cushioned with
geotextile fabric temporarily placed on VaporBlock® Plus™ provide
for additional protection in high traffic areas including concrete
buggies.
2.2. Use only brick-type or chair-type reinforcing bar supports to protect
VaporBlock® Plus™ from puncture.
2.3. Avoid driving stakes through VaporBlock® Plus™. If this cannot be
avoided, each individual hole must be repaired per section 1.7.
2.4. To avoid penetrating VaporBlock® Plus™ when installing screed
supports, utilize non-penetrating support, such as the Mako®
Screed Support System (Fig. 17). Avoid driving stakes through
VaporBlock® Plus™. If this cannot be avoided, each individual hole
must be repaired per figures 14-15.
2.5. If a cushion or blotter layer is required in the design between
VaporBlock® Plus™ and the slab, additional care should be given if
sharp crushed rock is used. Washed rock will provide less chance of
damage during placement. Care must be taken to protect blotter layer
from precipitation before concrete is placed.
VaporBlock® Plus™ Gas & Moisture Barrier can be identified on site
as gold/white in color printed in black ink with following logo and
classification listing (Fig. 18)
Page 5 of 5
VaporBlock® Plus™
Gas & Moisture Barrier
Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be performed for applicability in specific applications and/or conditions. RAVEN INDUSTRIES MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at wwww.RavenEFD.com
ENGINEERED FILMSP.O. Box 5107 Sioux Falls, SD 57117-5107Ph: [phone] • TF: [phone]
[e-mail]
020316 EFD 1127
VAPORBLOCK® PLUS™ PROTECTION
Fig. 16
Fig. 18
Fig. 17
* Patent Pending
© Raven 2016. All Rights Reserved.

Attachment C-2

Drago Wrap Product Specification Sheets & Installation Instructions
P1 OF 2
DRAGO® WRAPVAPOR INTRUSION BARRIER
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019
1. PRODUCT NAME
DRAGO WRAP VAPOR INTRUSION BARRIER
2. MANUFACTURER
c/o Stego® Industries, LLC*
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. PRODUCT DESCRIPTION
TABLE 4.1: PHYSICAL PROPERTIES OF DRAGO WRAP VAPOR INTRUSION BARRIER
PROPERTY TEST RESULTS
Under Slab Vapor Retarders ASTM E1745 – Standard Specification for Water Vapor Retarders Used in Contact with Soil or Granular Fill under Concrete Slabs ASTM E1745 Compliant
Water Vapor Permeance ASTM F1249 – Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor 0.0069 perms
Push-Through Puncture ASTM D4833 – Test Method for Index Puncture Resistance of Geotextiles, Geomembranes, and Related Products 183.9 Newtons
Tensile Strength ASTM D882 – Test Method for Tensile Properties of Thin Plastic Sheeting 53.5 lbf/in
Permeance After Conditioning ASTM E154 Section 8, F1249 – Permeance after wetting, drying, and soaking 0.0073 perms(ASTM E1745 ASTM E154 Section 11, F1249 – Permeance after heat conditioning 0.0070 permsSections 7.1.2 - 7.1.5) ASTM E154 Section 12, F1249 – Permeance after low temperature conditioning 0.0062 perms ASTM E154 Section 13, F1249 – Permeance after soil organism exposure 0.0081 perms
Hydrocarbon Attenuation Factors Contact Stego Industries’ Technical Department
Chlorinated Solvent Attenuation Factors Contact Stego Industries’ Technical Department
Methane Transmission Rate ASTM D1434 – Test Method for Determining Gas Permeability Characteristics of 7.0 GTR** Plastic Film and Sheeting (mL(STP)/m2*day)
Radon Diffusion Coefficient K124/02/95 9.8 x 10-14 m2/second
Thickness 20 mil
Roll Dimensions 14' x 105' or 1,470 ft2
Roll Weight 150 lb
Note: perm unit = grains/(ft2*hr*in-Hg) ** GTR = Gas Transmission Rate
USES: Drago Wrap is specifically engineered to attenuate volatile organic compounds (VOCs) and serve as a below-slab
moisture vapor barrier.
COMPOSITION: Drago Wrap is a multi-layered plastic extrusion that combines uniquely designed materials with only
high grade, prime, virgin resins.
ENVIRONMENTAL FACTORS: Drago Wrap can be used in systems for the control of various VOCs including hydrocarbons,
chlorinated solvents, radon, methane, soil poisons, and sulfates.
4. TECHNICAL DATA
Continued... Note – legal notice on page 2.
DRAGO® WRAPVAPOR INTRUSION BARRIER
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019
DATA SHEETS ARE SUBJECT TO CHANGE. FOR MOST CURRENT VERSION, VISIT WWW.STEGOINDUSTRIES.COM
[phone] | www.stegoindustries.com
*Stego Industries, LLC (“Stego”) is the exclusive Representative for Drago Wrap and Pango Wrap. All designated trademarks are the intellectual property
of Stego or the entity for which it is acting as a Representative. Installation, Warranty, State Approval Information and Disclosure of Representative Status: www.stegoindustries.com/legal. ©2019 Stego Industries, LLC. All rights reserved.
5. INSTALLATION
UNDER SLAB: Unroll Drago Wrap over a tamped aggregate, sand, or earth base. Overlap all seams a minimum of 12
inches and tape using Drago® Tape. All penetrations must be sealed using a combination of Drago Wrap and Drago
Accessories.
Review Drago Wrap’s complete installation instructions prior to installation.
6. AVAILABILITY & COST
Drago Wrap is available nationally through our network of building supply distributors. For current cost information,
contact your local Drago distributor or Stego Industries’ Sales Representative.
7. WARRANTY
Stego Industries, LLC believes to the best of its knowledge, that specifications and recommendations herein are
accurate and reliable. However, since site conditions are not within its control, Stego Industries does not guarantee
results from the use of the information provided and disclaims all liability from any loss or damage. Stego Technology,
LLC does offer a limited warranty on Drago Wrap. Please see www.stegoindustries.com/legal.
8. MAINTENANCE
Store Drago Wrap in a dry and temperate area.
9. TECHNICAL SERVICES
Technical advice, custom CAD drawings, and additional information can be obtained by contacting Stego Industries or
by visiting the website.
Contact Number: [phone]
Website: www.stegoindustries.com
10. FILING SYSTEMS
• www.stegoindustries.com
P2 OF 2
INSTALLATIONINSTRUCTIONS
DRAGO® WRAP
VAPOR INTRUSION BARRIER
Engineered protection to create a healthy built environment.
2. Unroll Drago Wrap over the area where the slab is to be placed.
Drago Wrap should completely cover the concrete placement
area. All joints/seams should be overlapped a minimum of
12 inches and taped using Drago® Tape. (Fig. 1). If additional
protection is needed, install DragoTack™ Tape in between the
overlapped seam in combination with Drago Tape on top of the
seam.
NOTE: The area of adhesion should be free from dust, dirt, moisture,
and frost to allow maximum adhesion of the pressure-sensitive tape. Ensure that all seams are taped with applied pressure to allow for
maximum and continuous adhesion of the pressure-sensitive Drago Tape. Adhesives should be installed above 40°F. In temperatures
below 40°F, take extra care to remove moisture/frost from the area
of adhesion.
3. ASTM E1643 requires sealing the perimeter of the slab. Extend
vapor retarder over footings and seal to foundation wall or
grade beam at an elevation consistent with the top of the slab
or terminate at impediments such as waterstops or dowels.
Consult the structural and environmental engineer of record
before proceeding.
IMPORTANT: Please read these installation instructions completely, prior to beginning any Drago Wrap installation. The following installation
instructions are generally based on ASTM E1643 – Standard Practice for Selection, Design, Installation, and Inspection of Water Vapor Retarders
Used in Contact with Earth or Granular Fill Under Concrete Slabs. There are specific instructions in this document that go beyond what is stated in
ASTM E1643 to take into account vapor intrusion mitigation. If project specifications call for compliance with ASTM E1643, then be sure to review
the specific installation sections outlined in the standard along with the techniques referenced in these instructions.
DRAGO TAPE
Minimum 12” overlap
VAPOR INTRUSION BARRIER
Fig.1: UNDER-SLAB INSTALLATION
DRAGO® WRAP VAPOR INTRUSION BARRIERINSTALLATION INSTRUCTIONS
UNDER-SLAB INSTRUCTIONS:
FOOTING
DRAGOTACK TAPE
VAPOR INTRUSION BARRIER
Fig.2a: SEAL TO PERIMETER WALL Fig. 2b: SEAL TO FOOTING
FOOTING
DRAGOTACK TAPE
VAPOR INTRUSION BARRIER
SEAL TO PERIMETER WALL OR FOOTING WITH DRAGOTACK
TAPE: (Fig. 2a and 2b)
a. Make sure area of adhesion is free of dust,
dirt, debris, moisture, and frost to allow
maximum adhesion.
b. Remove release liner on one side and stick to
desired surface.
c. When ready to apply Drago Wrap, remove the
exposed release liner and press firmly against
DragoTack Tape to secure.
d. If a mechanical seal is needed, fasten a
termination bar over the top of the Drago Wrap
inline with the DragoTack Tape.
NOTE: If sealing to the footing, the footing should receive
a hand float finish to allow for maximum adhesion.
1. Drago Wrap has been engineered to be installed over a tamped aggregate, sand, or earth base. It is not typically necessary
to have a cushion layer or sand base, as Drago Wrap is tough enough to withstand rugged construction environments.
NOTE: Drago Wrap must be installed with the gray facing the subgrade.
P2 of 4
Continued ... Note - legal notice on last page.
DETAIL PATCH FOR PIPE PENETRATION SEALING: (Fig. 4b)a. Install Drago Wrap around pipe penetrations by slitting/cutting material as needed. Try to minimize void space
created.
b. If Drago Wrap is close to pipe and void space is minimized, proceed to step d.
c. If void space exists, then
i. Cut a detail patch to a size and shape that creates a 6-inch overlap on all edges around the void space at
the base of the pipe.
ii. Cut an “X” slightly smaller than the size of the pipe diameter in the center of the detail patch and slide
tightly over pipe.
iii. Tape the edges of the detail patch using Drago Tape.
d. Seal around the base of the pipe using Drago Tape and/or Drago Sealant and Drago Sealant Form.
i. If Drago Sealant is used to seal around pipe, make sure Drago Wrap is flush with the base of the
penetration prior to pouring Drago Sealant.
5. IMPORTANT: ALL PENETRATIONS MUST BE SEALED. All pipe, ducting, rebar, and block outs should be sealed using
Drago Wrap, Drago Tape, and/or Drago® Sealant and Drago® Sealant Form. (Fig. 4a). Drago accessories should be
sealed directly to the penetrations.
DRAGO TAPE
DAMAGED AREA
DRAGO TAPE DRAGO TAPE
SMALL HOLE
VAPOR INTRUSION BARRIER
VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER
Fig. 3: SEALING DAMAGED AREAS
4. In the event that Drago Wrap is damaged during or after installation, repairs must be made. Cut a piece of Drago Wrap
to a size and shape that covers any damage by a minimum of 6 inches in all directions. Clean all adhesion areas of dust,
dirt, moisture, and frost. Tape down all edges using Drago Tape. (Fig. 3)
MINIMAL VOID SPACE CREATED
DRAGO SEALANTDRAGO TAPE
OR DRAGO SEALANT FORM
VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER
Fig. 4a: PIPE PENETRATION SEALING
DRAGO TAPE
LARGE VOID SPACE CREATED
DRAGO SEALANTDRAGO TAPE
OR DRAGO SEALANT FORM
VAPOR INTRUSION BARRIERVAPOR INTRUSION BARRIERVAPOR INTRUSION BARRIER
VAPOR INTRUSION BARRIER
Fig. 4b: DETAIL PATCH FOR PIPE PENETRATION SEALING
Continued ... Note - legal notice on last page.
P3 of 4
DRAGO® WRAP VAPOR INTRUSION BARRIERINSTALLATION INSTRUCTIONS
STEGO INDUSTRIES, LLC • SAN CLEMENTE, CA • 949-257-4100 • 877-464-7834 • www.stegoindustries.com
*Stego Industries, LLC (“Stego”) is the exclusive Representative for Drago Wrap and Pango Wrap. All designated trademarks are the intellectual property of Stego or the entity for which it is acting as a Representative. Installation, Warranty, State Approval Information and Disclosure of Representative Status: www.stegoindustries.com/legal. ©2019 Stego Industries, LLC. All rights reserved. 11/2019
NOTE: While Drago Wrap installation instructions are based on ASTM E1643 - Standard Practice for Selection, Design, Installation, and Inspection of Water Vapor Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs, these instructions are meant to be used as a guide, and do not take into account specific job site situations. Consult local building codes and regulations along with the building owner or owner’s representative before proceeding. If you have any questions regarding the above-mentioned installation instructions or products, please call us at 877-464-7834 for technical assistance. While Stego Industries’ employees and representatives may provide technical assistance regarding the utility of a specific installation practice or Stego product, they are not authorized to make final design decisions.
MULTIPLE PIPE PENETRATION SEALING: (Fig. 5)
NOTE: Multiple pipe penetrations in close proximity may be most efficiently sealed using Drago Wrap, Drago
Sealant, and Drago Sealant Form for ease of installation.
a. Cut a hole in Drago Wrap such that the membrane fits over and around the base of the pipes as closely as
possible, ensuring that it is flush with the base of the penetrations.
b. Install Drago Sealant Form continuously around the entire perimeter of the group of penetrations and at least
1 inch beyond the terminating edge of Drago Wrap.
c. Pour Drago Sealant inside of Drago Sealant Form to create a seal around the penetrations.
d. If the void space between Drago Wrap and the penetrations is not minimized and/or the base course allows for
too much drainage of sealant, a second coat of Drago Sealant may need to be poured after the first application
has cured.
IMPORTANT: AN INSTALLATION COMPLETED PER THESE INSTRUCTIONS SHOULD CREATE A MONOLITHIC MEMBRANE
BETWEEN ALL INTERIOR INTRUSION PATHWAYS AND VAPOR SOURCES BELOW THE SLAB AS WELL AS AT THE SLAB
PERIMETER. THE UNDERLYING SUBBASE SHOULD NOT BE VISIBLE IN ANY AREA WHERE CONCRETE WILL BE PLACED. IF
REQUIRED BY THE DESIGN ENGINEER, ADDITIONAL INSTALLATION VALIDATION CAN BE DONE THROUGH SMOKE TESTING.
Stego Industries* recommends the use of BEAST vapor barrier-safe concrete accessories, to help eliminate the use of non-permanent penetrations in Drago Wrap installations.
MINIMAL VOID SPACE CREATED
DRAGO SEALANT
DRAGO SEALANT FORM DRAGO SEALANT FORM DRAGO SEALANT FORM
DRAGO SEALANT
VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER VAPOR INTRUSION BARRIER
Fig. 5: MULTIPLE PIPE PENETRATION SEALING
BEAST® CONCRETE ACCESSORIES - VAPOR BARRIER SAFE
BEAST® SCREED BEAST® HOOK
P3 of 4
BEAST® FORM STAKE
Locate itand lock it down!Improve efficiency and maintain concrete floor levelness with the BEAST SCREED SYSTEM!
The Stego barrier-safe forming system that prevents punctures in the vapor barrier.
P1 OF 2
DRAGO® TAPE
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 11/27/2019
1. PRODUCT NAME
DRAGO TAPE
2. MANUFACTURER
c/o Stego® Industries, LLC*
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. PRODUCT DESCRIPTION
USES: Drago Tape is a low-permeance tape designed for protective sealing, seaming, splicing, and patching applications
where a highly conformable material is required. It has been engineered to bond specifically to Drago® Wrap Vapor
Intrusion Barrier, making it ideal for sealing Drago Wrap seams and penetrations.
COMPOSITION: Drago Tape is a multi-layered plastic extrusion that combines uniquely designed materials with only
high grade, prime, virgin resins, and an acrylic, pressure-sensitive adhesive.
SIZE: Drago Tape is 3.75" x 180'. Drago Tape ships 12 rolls in a case.
4. TECHNICAL DATA
APPLICABLE STANDARDS:
Pressure Sensitive Tape Council (PSTC)
• PSTC 101 – International Standard for Peel Adhesion of Pressure Sensitive Tape
• PSTC 107 – International Standard for Shear Adhesion of Pressure Sensitive Tape
American Society for Testing & Materials (ASTM)
• ASTM E1643 – Standard Practice for Selection, Design, Installation, and Inspection of Water Vapor Retarders
Used In Contact with Earth or Granular Fill under Concrete Slabs.
TABLE 4.1: PHYSICAL PROPERTIES OF DRAGO TAPE
PROPERTY TEST RESULTS
Total Thickness 8 mil
Permeance ASTM F1249 0.031 perms
Tensile Strength MD ASTM D882 20.5 lbf/in
Elongation (at break) MD ASTM D882 702%
180° Peel Adhesion PSTC 101 20-min dwell to Drago Wrap 50.1 oz/in
PSTC 101 24-hour dwell to Drago Wrap 92.9 oz/in
Shear Adhesion PSTC 107 24-hour dwell (1" x 1", 1kg/wt) to Drago Wrap 188 minutes
Note: perm unit = grains/(ft2*hr*in-Hg)
Continued... Note – legal notice on page 2.
DRAGO® TAPE
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 11/27/2019
DATA SHEETS ARE SUBJECT TO CHANGE. FOR MOST CURRENT VERSION, VISIT WWW.STEGOINDUSTRIES.COM
[phone] | www.stegoindustries.com
*Stego Industries, LLC (“Stego”) is the exclusive Representative for Drago Wrap and Pango Wrap. All designated trademarks are the intellectual property
of Stego or the entity for which it is acting as a Representative. Installation, Warranty, State Approval Information and Disclosure of Representative Status: www.stegoindustries.com/legal. ©2019 Stego Industries, LLC. All rights reserved.
5. INSTALLATION
SEAMS: Overlap Drago Wrap a minimum 12 inches and seal with Drago Tape. Make sure the area of adhesion is free
from dust, moisture and frost to allow maximum adhesion of the pressure-sensitive tape.
PIPE PENETRATION SEALING:
• Install Drago Wrap around pipe by slitting/cutting material.
• If void space is minimal, seal around base of pipe with Drago Tape and/or Drago® Sealant and Drago® Sealant Form.
DETAIL PATCH FOR PIPE PENETRATION SEALING:
• Cut a piece of Drago Wrap that creates a 6 inch overlap around all edges of the void space.
• Cut an “X” slightly smaller than the size of the pipe diameter in the center of the detail patch.
• Slide detail patch over pipe, secure tightly.
• Tape down all sides of detail patch with Drago Tape.
• Seal around base of pipe with Drago Tape and/or Drago Sealant and Drago Sealant Form.
Drago Tape should be installed above 40°F. In temperatures below 40°F, take extra care to remove moisture or frost
from the area of adhesion. Ensure that the entirety of all seams are taped with applied pressure to allow for maximum
and continuous adhesion of the pressure-sensitive Drago Tape.
Review Drago Wrap’s complete installation instructions prior to installation.
6. AVAILABILITY & COST
Drago Tape is available nationally through our network of building supply distributors. For current cost information,
contact your local Drago distributor or Stego Industries’ Sales Representative.
7. WARRANTY
Stego Industries, LLC believes to the best of its knowledge, that specifications and recommendations herein are
accurate and reliable. However, since site conditions are not within its control, Stego Industries does not guarantee
results from the use of the information provided and disclaims all liability from any loss or damage. Stego Technology,
LLC does offer a limited warranty on Drago Wrap. Please see www.stegoindustries.com/legal.
8. MAINTENANCE
Store Drago Tape in a dry and temperate area.
9. TECHNICAL SERVICES
Technical advice, custom CAD drawings, and additional information can be obtained by contacting Stego Industries or
by visiting the website.
Contact Number: [phone]
Website: www.stegoindustries.com
10. FILING SYSTEMS
• www.stegoindustries.com
P2 OF 2
P1 OF 2
DRAGOTACK™ TAPE
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019
1. PRODUCT NAME
DRAGOTACK TAPE
2. MANUFACTURER
c/o Stego® Industries, LLC*
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. PRODUCT DESCRIPTION
TABLE 4.1: PHYSICAL PROPERTIES OF DRAGOTACK TAPE
PROPERTY TEST RESULTS
Dimensions 2" x 50'
Total Thickness 30 mil
Color Grey
Material Synthetic rubber blend
Permeance ASTM F1249 0.03 perms (30 mil) Adhesion to Steel ASTM D1000 12.5 lbs/in width
Chemical Resistance No significant change to(TCE, PCE, Toluene, Xylene) ASTM D471 / D543 mass or volume.
Installation Temperature 40°F / 110°
In Service Temperature Range -20°F / +140°F
VOC Content No VOCs, 100% solids
Note: perm unit = grains/(ft2*hr*in-Hg)
USES: DragoTack Tape is a solvent-resistant, double-sided adhesive strip used to bond and seal Drago® Wrap Vapor
Intrusion Barrier to concrete, masonry, wood, metal, and other surfaces. DragoTack Tape is a flexible and moldable
material to allow for a variety of applications and installations.
COMPOSITION: DragoTack Tape is made from a solvent-resistant blend of synthetic rubber and resins.
SIZE: DragoTack Tape is 2" x 50'. DragoTack Tape ships 12 rolls in a case.
4. TECHNICAL DATA
Continued... Note – legal notice on page 2.
DRAGOTACK™ TAPE
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019
DATA SHEETS ARE SUBJECT TO CHANGE. FOR MOST CURRENT VERSION, VISIT WWW.STEGOINDUSTRIES.COM
[phone] | www.stegoindustries.com
*Stego Industries, LLC (“Stego”) is the exclusive Representative for Drago Wrap and Pango Wrap. All designated trademarks are the intellectual property
of Stego or the entity for which it is acting as a Representative. Installation, Warranty, State Approval Information and Disclosure of Representative Status: www.stegoindustries.com/legal. ©2019 Stego Industries, LLC. All rights reserved.
5. INSTALLATION
TO WALLS AND FOOTINGS: Make sure the area of adhesion is free of dust, dirt, debris, moisture, and frost to allow
maximum adhesion. Remove release liner on one side and stick to desired surface. When ready to apply Drago Wrap,
remove the exposed release liner and press Drago Wrap firmly against DragoTack Tape to secure.
Cut DragoTack Tape using a utility knife or scissors. Cut DragoTack Tape before removing the release liner for easier
cutting. Install DragoTack Tape between 40°F and 110°F.
Review Drago Wrap’s complete installation instructions prior to installation.
6. AVAILABILITY & COST
DragoTack Tape is available nationally through our network of building supply distributors. For current cost information,
contact your local Drago distributor or Stego Industries’ Sales Representative.
7. WARRANTY
Stego Industries, LLC believes to the best of its knowledge, that specifications and recommendations herein are
accurate and reliable. However, since site conditions are not within its control, Stego Industries does not guarantee
results from the use of the information provided and disclaims all liability from any loss or damage. Stego Technology,
LLC does offer a limited warranty on Drago Wrap. Please see www.stegoindustries.com/legal.
8. MAINTENANCE
Store DragoTack Tape in a dry and temperate area.
9. TECHNICAL SERVICES
Technical advice, custom CAD drawings, and additional information can be obtained by contacting Stego Industries or
by visiting the website.
Contact Number: [phone]
Website: www.stegoindustries.com
10. FILING SYSTEMS
• www.stegoindustries.com
P2 OF 2
P1 OF 2
DRAGO® SEALANT FORM
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019
1. PRODUCT NAME
DRAGO SEALANT FORM
2. MANUFACTURER
c/o Stego® Industries, LLC*
216 Avenida Fabricante, Suite 101
San Clemente, CA 92672
Sales, Technical Assistance
Ph: [phone]
Fx: [phone]
www.stegoindustries.com
3. PRODUCT DESCRIPTION
USES: Drago Sealant Form is used in conjunction with Drago® Sealant to help create an efficient and effective seal
around pipe penetrations in Drago® Wrap Vapor Intrusion Barrier.
COMPOSITION: Drago Sealant Form is a low-density, cross-linked, closed-cell polyethylene foam with an acrylic,
pressure-sensitive adhesive.
SIZE: Drago Sealant Form is ½" x ½" x 24". Drago Sealant Form comes in 200 pieces per case (10 boxes of 20 pieces).
4. TECHNICAL DATA
TABLE 4.1: PHYSICAL PROPERTIES OF DRAGO SEALANT FORM
PROPERTY RESULTS
Dimensions ½” x ½” x 24”
Color White
Weight 0.11 oz (3.1 grams)
Continued... Note – legal notice on page 2.
5. INSTALLATION
PENETRATIONS: Make sure the area of adhesion is free of dust, debris, moisture, and frost to allow maximum adhesion.
When ready to apply to Drago Wrap, remove the release liner and press Drago Sealant Form firmly against Drago Wrap
to secure. Install Drago Sealant Form continuously around the entire perimeter of the penetration(s) and at least 1 inch
beyond the terminating edge of Drago Wrap. Install Drago Sealant Form between 40°F and 110°F. Pour Drago Sealant
inside of Drago Sealant Form to create a seal around the penetration(s).
Review Drago Wrap’s complete installation instructions prior to installation.
6. AVAILABILITY & COST
Drago Sealant Form is available nationally through our network of building supply distributors. For current cost
information, contact your local Drago distributor or Stego Industries’ Sales Representative.
DRAGO® SEALANT FORM
A STEGO TECHNOLOGY, LLC INNOVATION | VAPOR RETARDERS 07 26 00, 03 30 00 | VERSION: 2/22/2019
DATA SHEETS ARE SUBJECT TO CHANGE. FOR MOST CURRENT VERSION, VISIT WWW.STEGOINDUSTRIES.COM
[phone] | www.stegoindustries.com
*Stego Industries, LLC (“Stego”) is the exclusive Representative for Drago Wrap and Pango Wrap. All designated trademarks are the intellectual property
of Stego or the entity for which it is acting as a Representative. Installation, Warranty, State Approval Information and Disclosure of Representative Status: www.stegoindustries.com/legal. ©2019 Stego Industries, LLC. All rights reserved.
7. WARRANTY
Stego Industries, LLC believes to the best of its knowledge, that specifications and recommendations herein are
accurate and reliable. However, since site conditions are not within its control, Stego Industries does not guarantee
results from the use of the information provided and disclaims all liability from any loss or damage. Stego Technology,
LLC does offer a limited warranty on Drago Wrap. Please see www.stegoindustries.com/legal.
8. MAINTENANCE
Store Drago Sealant Form in a dry and temperate area.
9. TECHNICAL SERVICES
Technical advice, custom CAD drawings, and additional information can be obtained by contacting Stego Industries or
by visiting the website.
Contact Number: [phone]
Website: www.stegoindustries.com
10. FILING SYSTEMS
• www.stegoindustries.com
P2 OF 2

Attachment C-3

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

Attachment C-4

Big Foot Slotted PVC Pipe Product Specification Sheet

Attachment C-5

Zurn Industries Floor Clean-out Product Specification Sheet