25101_Press Club_VIMP and Review Letter_20230222

February 22, 2023
Sent via Email

Trinh DeSa, PE
Hart & Hickman, PC 2923 South Tryon Street, Suite 100 Charlotte, NC 28203 [e-mail]
Subject: Vapor Intrusion Mitigation Plan – Revision 1 Press Club Cleaners Charlotte, Mecklenburg County
Brownfields Project # 25101-21-060 Dear Mr. DeSa:
The North Carolina Department of Environmental Quality’s Brownfields Redevelopment
Section (DEQ Brownfields) received and reviewed the Vapor Intrusion Mitigation Plan (VIMP)
Revision 1 dated February 21, 2023, for the above referenced Brownfields Property. DEQ Brownfields has found the VIMP to satisfy elements of the Land Use Restrictions of the pending Brownfields Agreement for design of a vapor mitigation system, and as such, this letter
constitutes DEQ approval of the VIMP.
As will be expressed in the Brownfields Agreement for this project, an essential component of public health protection for this design is the professional engineer’s seal of these documents that the proposed design will be effective at mitigating the potential for vapor intrusion at the property and protecting public health. In addition, DEQ Brownfields reserves the
authority to require confirmation of efficacy in the future.
Be advised that this review from DEQ Brownfields does not waive any applicable requirement to obtain any necessary permits, licenses or certifications for the above listed activities nor does it waive any requirement to comply with applicable law for such activities.

Trinh DeSa, PE February 22, 2023 Page 2

If you have questions about this correspondence or require additional information, please
contact me by phone at [phone], or e-mail at [e-mail].
Sincerely,
Peter L. Doorn Brownfields Project Manager
ec: Robert Brooks, CH MF BTH III/Charlotte LoSo, LLC
Mark Mathews, Trammell Crow Residential Sean Allen, Trammell Crow Residential Mary Katherine Stukes, Moore & Van Allen, PLLC Laura Truesdale, Moore & Van Allen, PLLC
Haley Martin, Hart & Hickman, PC
Ralph McGee, Hart & Hickman, PC Mike Cunningham, DEQ DSCA Program Richard Concepcion, DEQ Hazardous Waste Section Tracy Wahl, DEQ Brownfields
Kelly Johnson, DEQ Brownfields
Kevin Slaughter, DEQ Brownfields

Via Email February 21, 2023
NCDEQ – Division of Waste Management Brownfields Program 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Attn: Mr. Pete Doorn Re: Vapor Intrusion Mitigation Plan – Revision 1 Former Press Club Cleaners Charlotte, North Carolina Brownfields Project No. 25101-21-060 DSCA Site ID No. DC600090
H&H Project No. TCR-003
Dear Pete: On behalf of CH MF BTH III/Charlotte LoSo, LLC, please find the enclosed Vapor Intrusion Mitigation Plan (VIMP) – Revision 1 dated February 21, 2023 prepared for the above-referenced Site. The VIMP has been prepared to address potential vapor intrusion risks for the proposed high-density residential apartment building based on the results of previous assessment activities. Should you have questions or need additional information, please do not hesitate to contact us at [phone]. Sincerely,
Hart & Hickman, PC

Haley Martin, PG Trinh DeSa, PE Senior Project Geologist Engineering Manager Enclosure: Cc (via email): Mr. Robert Brooks, Trammell Crow Residential Mr. Mark Matthews, Trammel Crow Residential Mr. Sean Allen, Trammel Crow Residential Ms. Mary Katherine Stukes, Moore & Van Allen, PLLC Ms. Laura Boorman Truesdale, Moore & Van Allen, PLLC
Mr. Mike Cunningham, DEQ DWM DSCA Program
Mr. Billy Meyer, DEQ DWM DSCA Program Mr. Ralph McGee Hart & Hickman, PC Ms. Juliana Lima, Hart & Hickman, PC Ms. Joselyn Harriger, DEQ Brownfields Program Mr. Kelly Johnson, DEQ Brownfields Program

#C-1269 Engineering
#C-245 Geology

Vapor Intrusion Mitigation Plan
Revision 1

Former Press Club Cleaners
Brownfields Project No. 25101-21-060
DSCA Site ID No. DC600090

Alexan LoSo
South Boulevard and Hartford Avenue
Charlotte, North Carolina

H&H Job No. TCR-003 February 21, 2023

i
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
Vapor Intrusion Mitigation Plan – Rev. 1 Former Press Club Cleaners Alexan LoSo Charlotte, North Carolina Brownfields Project No. 25101-21-060 H&H Job No. TCR-003
Table of Contents

1.0 Introduction ................................................................................................................ 1
1.1 Background ...............................................................................................................2
1.2 Site Assessment Activities ........................................................................................4
2.0 Design Basis .............................................................................................................. 11
2.1 Base Course Layer and Vapor Barrier ....................................................................11
2.2 Horizontal Collection Piping and Vertical Riser Piping .........................................13
2.3 Monitoring Points ...................................................................................................14
2.4 General Installation Criteria ....................................................................................15
3.0 Quality Assurance / Quality Control ...................................................................... 17
4.0 Post-Construction System Effectiveness Testing .................................................. 18
5.0 Post-Occupancy Testing .......................................................................................... 24
6.0 Future Tenants & Building Uses ............................................................................ 25
7.0 Reporting .................................................................................................................. 26

Figures

Figure 1 Site Location Map
Figure 2 Site Redevelopment Map

Appendices
Appendix A Excerpts from Previous Assessment Activities
Appendix B Vapor Intrusion Mitigation Plan – Sheets VM-0 through VM-9
Appendix C Vapor Intrusion Mitigation System Product Specification Sheets
Appendix D Site-Specific VOC List
1
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
Vapor Intrusion Mitigation Plan – Rev. 1 Former Press Club Cleaners Alexan LoSo Charlotte, North Carolina Brownfields Project No. 25101-21-060 H&H Job No. TCR-003 1.0 Introduction
On behalf of CH MF BTH III/Charlotte LoSo, LLC (the Prospective Developer or PD), Hart &
Hickman, PC (H&H) has prepared this Vapor Intrusion Mitigation Plan (VIMP) for installation of
a vapor intrusion mitigation system (VIMS) during construction of the proposed Alexan LoSo
multi-family development at the Former Press Club Cleaners Brownfields Property (Brownfields
Project No. 25101-21-060) located at 3305 and 3309 South Boulevard and 121, 127, 133, and 139
Hartford Avenue in Charlotte, Mecklenburg County, North Carolina (Site). The Site consists of
three contiguous parcels (Mecklenburg County Parcel ID Nos. 14705111, 14705124, and
14705112). Collectively, the Site totals approximately 2.3 acres of land located in a historically
industrial and commercial area of the lower South End of Charlotte. A Site location map is
provided as Figure 1.

The Site is currently developed with an approximate 10,000 square foot (sq ft) multi-tenant
commercial building that consists of two units and a basement. The northern portion of the Site
building was most recently operated as a dry-cleaning facility known as Press Club Cleaners. The
Site building is currently unoccupied. Remaining portions of the Site consists of paved parking
areas, driveways, and vegetated areas. The PD plans to raze the Site for redevelopment with a
residential apartment building with associated parking deck and amenity areas. The proposed
redevelopment layout is provided as an overlay in Figure 2.
To address potential environmental concerns associated with historical on-Site and nearby off-Site
operations, the PD elected to enter the Site into the North Carolina Department of Environmental
Quality (DEQ) Brownfields Program and received eligibility in April 2022. The Notice of
Brownfields Property (Brownfields Agreement) is currently in development between the PD and
DEQ but has not yet been recorded. The redevelopment of the Site will be completed under
2
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
purview of the DEQ Brownfields Program and in accordance with a DEQ-approved
Environmental Management Plan (EMP).
The proposed apartment building will consist of one eight-story residential multi-family building
with the majority of the building constructed over a podium style parking deck. Occupiable
ground-level components of the proposed building are limited to select areas in the eastern and
southeastern portions of the Site. The basement level (Level 0) in the of the eastern-southeastern
portion of the proposed building Site building consists of five residential units with trash and
maintenance spaces. In addition, the parking deck will be constructed with one elevator and one
stairwell along the eastern portion of the structure. Collectively, the Level 0 residential units, trash
and maintenance spaces, and elevator and stairwell banks include a total enclosed ground floor
space of approximately 9,700 square feet (sq ft).

The residential units will have raised ceilings that extend through the first floor (Level 1). Level
1 also includes the open-air parking garage (deck) that comprises the majority of the building area.
Additional ground floor areas of Level 1 include several utility rooms and stairwells located within
the parking garage. The total enclosed ground floor Level 1 space is approximately 2,100 sq ft.

The second floor (Level 2) consists of residential units and amenity spaces (i.e., leasing office,
fitness center, mailroom, etc.) located along the southern, eastern, and western sides of the attached
open air parking structure. The third floor consists of residential units, amenity areas and two
open-air courtyards which include a pool and lounge area. The fourth through eighth floors
consists of residential units outside the footprint of the two courtyards. On the eastern side of the
building, a roof with mechanical equipment is located on the sixth floor above the residential units,
and the remaining portion of the building has a roof on the eight floor.

1.1 Background

As early as 1905, the Site consisted of cleared land developed with a residence or agricultural
structure in the southern portion of the Site. The Site remained unchanged until the current
commercial building was constructed in 1945. The Site building has been utilized for dry cleaning
3
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
operations by multiple tenants since construction including Maxey’s One Hour Cleaners &
Laundry (the late 1960s-1970s), One Hour Martinizing (mid-1980s to early 1990s), KNP Cleaners
(1990s), Town Cleaners (2000s), and Press Club Cleaners (mid-2010s). Other Site occupants have
included grocery stores, restaurants, a pawn shop, retail stores, and social clubs.

Portions of the Site were entered into the North Carolina Dry-Cleaning Solvent Cleanup Act
(DSCA) Program (DSCA Project No. DC600090) in October 2016. Following entry into the
DSCA Program, assessment activities identified impacts to groundwater, soil, sub-slab vapor, and
exterior soil gas at concentrations above the applicable screening criteria.

To address environmental concerns, the Site was entered into the DEQ Brownfields Program as a
part of property transaction due diligence activities. A Brownfields Property Application was
submitted to DEQ on December 30, 2021 for review and eligibility determination. A Letter of
Eligibility (LOE) was issued for the Site by DEQ on April 29, 2022. Due to time constraints
associated with the property transaction process and delays associated with the DEQ Brownfields
Program process, H&H designed the Phase II Environmental Site Assessment (ESA) sampling
approach described herein to be consistent with assessment activities typically requested by the
DEQ Brownfields Program.

As described in the EMP and Brownfields Assessment Report, the proposed grading activities for
this Site include removal of soils from select areas including the area referred to as “DSCA Soil
Management Area” depicted on the drawings in Appendix A. Therefore, to further assist with soil
management during the redevelopment of the Site, and to address DEQ Brownfields Program
requests for additional soil assessment during development of the EMP, H&H prepared an In Situ
Soil Characterization Work Plan – Revision 1 (Work Plan). The Work Plan received DEQ-
approval in a letter dated November 23, 2022. A brief description of the Phase II ESA activities
and additional soil assessment activities are detailed below, and excerpts including analytical data
tables and sample location maps are included in Appendix A.

4
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
1.2 Site Assessment Activities

In June 2022, H&H conducted Phase II ESA activities at the Site including collection of soil,
groundwater, and soil gas samples for laboratory analysis. Details of the assessment are
documented in the Phase II ESA Report dated September 9, 2022. In addition, in November 2022,
H&H performed additional soil assessment activities as documented in the Brownfields
Assessment Report, dated January 9, 2023.

As part of the Phase II ESA activities, H&H collected two (2) composite soil samples (COMP-1
and COMP-2) for laboratory analysis from ten soil borings advanced in areas of planned
disturbance during future grading and redevelopment activities. H&H also sampled four (4)
existing groundwater monitoring wells (MW-1 through MW-4) to further evaluate the potential
for impact from historical on-Site and nearby off-Site operations. To evaluate the potential for
structural vapor intrusion into the proposed Site buildings, H&H installed and sampled six (6)
temporary exterior soil gas monitoring points (BF-SG-1 and BF-SG-3 through BF-SG-7) and one
(1) temporary sub-slab soil gas sampling point (BF-SSV-1) within the footprint of the proposed
residential building. A sample location map and a tabular summary of the sample laboratory
analytical results are included in Appendix A, and brief summary of the sampling results for each
media is provided below.

As part of the additional soil assessment activities, six (6) soil borings (BF-SB-01 through BF-SB-
05, and EX-5A) were advanced and soil samples were collected from the borings for laboratory
analysis adjacent to the proposed northern and western extents of the DSCA Soil Management
Area to further delineate potential soil impacts associated with the dry cleaner release(s). Five (5)
shallow soil borings (COMP 2A through COMP-2E) were advanced in the southeastern portion of
the Site to determine the location(s) of lead and polynuclear aromatic hydrocarbon (PAH) impacts
in the COMP-2 evaluation area to assist in management of shallow soil during grading and
grubbing. In addition, twelve (12) composite soil samples were collected from twenty-three (23)
soil borings advanced in areas of proposed cut to assist in soil management during grading
5
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
activities. These areas were separated into five (5) soil characterization sections (EX-1 through
EX-5).

Soil Assessment Results - Phase II ESA
Results of Phase II ESA soil assessment activities identified trace levels of several volatile organic
compounds (VOCs) at concentrations above the laboratory method detection limits, but at
concentrations below the DEQ Preliminary Soil Remediation Goals (PSRGs) including 2-
butanone, ethylbenzene, naphthalene, tetrachloroethylene (PCE), toluene, 1,2,4-trimethylbenzene,
and total xylenes. No other VOCs were detected at concentrations above the laboratory method
detection limits in the composite soil samples. Several semi-VOCs (SVOCs) were detected at
concentrations above the Residential PSRGs (benzo(a)pyrene, benzo(a)anthracene,
benzo(b)fluoranthene, and indeno(1,2,3-cd)pyrene) in the duplicate composite sample collected in
the southeastern portion of the Site. Concentrations of lead were detected above the DEQ
Residential PSRG and background concentrations for metals in the composite soil sample
collected in the southeastern portion of the Site (COMP-2). Remaining metal concentrations
detected in soil samples collected at the Site are consistent with naturally occurring levels.
Mercury was not detected above its Residential PSRG in either of the soil samples.

Soil Assessment Results – Additional Soil Assessment
Results of the additional soil assessment activities did not indicate the presence of organic
compounds at concentrations above the DEQ PSRGs or the DEQ Contained-In Policy Unrestricted
Use Levels in the supplemental dry cleaner release delineation soil samples. Based on the results
of delineation soil samples, the extent of the DSCA Soil Management Area has been adequately
delineated and will be used to manage soil in accordance with the DEQ Contained-In Policy during
grading activities.

Results of the confirmation soil samples collected from shallow soil in the southeastern portion of
the Site (COMP-2) confirm the presence of select PAHs and lead at concentrations above the DEQ
Residential and/or Industrial/Commercial PSRGs. No other organic compounds were detected at
concentrations above the DEQ PSRGs in the southeastern shallow soil confirmation samples.
Lead and PAHs are not typically associated with potential vapor intrusion risks and thus the soil
6
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
assessment results summarized below are for informational purposes and are not anticipated to
affect the VIMS design or testing requirements.

Based on results of the confirmation soil sampling activities, PAHs detected in the original COMP-
2 composite soil sample are attributable to conditions at the COMP-2B and COMP-2E aliquot
boring locations with higher concentrations present at COMP-2E. In addition, lead concentration
detected in the original COMP-2 composite soil sample is attributable to conditions at the COMP-
2B aliquot boring location. The COMP-2B and COMP-2E boring locations are in areas planned
for fill during future grading activities and will be covered with impervious surfaces upon
completion of the proposed development.

Further, lead concentrations in the COMP-2B and COMP-2C soil samples, and soil sample EX-2
exceed the Rule of 20 (100 mg/kg) for potentially characteristically hazardous levels. Therefore,
these samples were submitted for lead analysis by Toxicity Characteristic Leaching Potential
(TCLP) methods to further assist in management of soil during redevelopment activities. Results
of TCLP analysis indicate that detected lead concentrations do not exceed the Maximum
Concentration for Toxicity Characteristics for lead and are not considered to be at or above
characteristically hazardous levels.

Groundwater Assessment Results
Results of groundwater assessment activities identified PCE (up to 2,370 micrograms per liter
[µg/L]) at concentrations above the DEQ 2L Standard and the Division of Waste Management
(DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) in samples collected from
groundwater wells MW-1 and MW-4. Trichloroethylene (TCE) was detected at concentrations
above the DEQ DWM Residential GWSL of 1.0 µg/L in MW-1 (183 µg/L) and MW-4 (1.8 µg/L).
The chlorinated solvent vinyl chloride was also detected in MW-1 at a concentration (20.5 µg/L)
exceeding the 2L Standards and the DEQ DWM Residential and Non-Residential GWSLs.
Additionally, the compound cis-1,2,-dichloroethylene (cis-1,2-DCE) was detected at a
concentration exceeding the 2L Standard in the MW-1 sample. Further, chloroform was detected
in wells MW-3 and MW-4 at concentrations slightly above the DEQ DWM Residential GWSL.
7
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
No other compounds were detected at concentrations above the 2L Standards or GWSLs in the
groundwater samples collected at the Site.

Soil Gas Assessment Results
Results of the exterior and sub-slab soil gas assessment activities identified PCE (up to 3,549
micrograms per cubic meter [µg/m3]) at concentrations which exceed the DEQ DWM Residential
Soil Gas Screening Level (SGSL) in one soil gas sample (BF-SG-1), located in the approximate
area of the proposed northern stairwell, and one sub-slab vapor sample (BF-SSV-1), located in the
proposed northwestern elevator area. TCE was detected at a concentration of 10,011 µg/m3 in the
BF-SG-1 sample (northern stairwell), which exceeds the DEQ DWM Residential and Non-
Residential SGSLs of 14 µg/m3 and 180 µg/m3, respectively. TCE was not detected at
concentrations above the laboratory method detection limits in soil gas samples collected within
the footprint of proposed ground floor residential units (BF-SG-6 and BF-SG-7).

The chlorinated solvent vinyl chloride was also detected at concentrations which exceed the DEQ
DWM Residential and/or Non-Residential SGSLs of 5.6 µg/m3 and 280 µg/m3, respectively, in
samples collected from BF-SG-1 (6,778 µg/m3) and BF-SSV-1 (526 µg/m3). Other compounds
including benzene, 1,3-butadiene, bromodichloromethane, chloroform, ethylbenzene, n-heptane,
n-hexane, naphthalene, 1,1,2,2-tetrachloroethane, and m&p-xylenes were detected above their
respective DEQ DWM Residential SGSL in soil gas samples collected across the Site. It is
noteworthy that higher concentrations of chlorinated compounds were detected in soil gas samples
collected nearest the former Press Club Cleaners release with decreasing concentrations farther
from the area of the release to the east-southeast where the ground floor residential units are
located.

Vapor Intrusion Risk Evaluation
To further evaluate potential vapor intrusion risks for the proposed Site buildings, H&H utilized
the DEQ Risk Calculator (July 2022) assuming a residential land use scenario to further evaluate
potential cumulative risks for the soil gas to indoor air vapor intrusion pathway for the proposed
apartment building. To model the potential for vapor intrusion under a hypothetical “worst-case”
scenario, H&H conservatively calculated the cumulative risks using the highest concentration of
8
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
any compound detected in soil gas samples collected in each area. Risk calculations were
separated into the proposed ground level occupiable areas (samples BF-SG-6 and BF-SG-7) and
the proposed parking deck area (samples BF-SSV-1, BF-SG-1, BF-SG-3 through BF-SG-5).

Risk calculator results indicate that under a hypothetical worst-case scenario for the soil gas to
indoor air vapor intrusion pathway for residential use, the cumulative LICR is less than the
acceptable risk level of 1 x 10-4 in both evaluation areas (proposed residential units and proposed
parking deck). The cumulative HI for residential use does not exceed the acceptable risk levels
within the proposed residential unit areas in the eastern-southeastern portion of the Site. However,
the Site-wide cumulative risk levels exceed acceptable levels. The exceedance is primarily driven
by concentrations from sample BF-SG-1, in the northwestern portion of the Site nearer the dry
cleaner release. This area is located beneath a proposed stairwell on the ground floor, but no
ground floor residential units are present in the vicinity of this sample location.

Since assessment results indicate an unacceptable vapor intrusion risk within the proposed parking
garage area of the Site, the PD has elected to install a passive vapor intrusion mitigation system in
the proposed apartment building during redevelopment activities to manage potential vapor
intrusion risks associated with chlorinated solvent impacts in Site soil, groundwater, and soil gas.
Installation of the VIMS is anticipated to satisfy the following Land Use Restriction (LUR) which
is anticipated to be standard language in the pending Brownfields Agreement:

No enclosed building may be constructed on the Brownfields Property and no existing
building, defined as those depicted on the plat component of the Notice of Brownfields
Property referenced in paragraph 18 below, may be occupied until DEQ determines in
writing that:
i. the building is or would be protective of the building’s users and public health from the
risk of vapor intrusion based on site assessment data, or a site-specific risk assessment
approved in writing by DEQ; or
ii. a vapor intrusion mitigation system (VIMS) has been:
9
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
1. designed to mitigate vapors for subgrade building features in accordance with the most
recent and applicable DWM Vapor Intrusion Guidance, Interstate Technology &
Regulatory Council (ITRC) guidance, and American National Standards Institute
(ANSI)/American Association of Radon Scientists and Technologists (AARST)
standards, and that said design shall fully protect public health to the satisfaction of a
professional engineer licensed in North Carolina, as evidenced by said engineer’s
professional seal, and shall include a performance monitoring plan detailing
methodologies and schedule, both of which are subject to prior written DEQ approval;
and
2. installed and an installation report is submitted for written DEQ approval that includes
details on any deviations from the system design, as-built diagrams, photographs, and
a description of the installation with said engineer’s professional seal confirming that
the system was installed per the DEQ-approved design and will be protective of public
health.

10
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
Engineer’s Certification
According to the DWM Vapor Intrusion Guidance: “Risk-based screening is used to identify sites
or buildings likely to pose a health concern, to identify buildings that may warrant immediate
action, to help focus site-specific investigation activities, or to provide support for building
mitigation and other risk management options including remediation.” In addition, this VIMP was
prepared to satisfy the vapor intrusion mitigation condition in the pending Brownfields Agreement.
Per the North Carolina Brownfields Property Reuse Act 130A-310.32, a prospective developer,
with the assistance of H&H for this project, is to provide NCDEQ with “information necessary to
demonstrate that ... as a result of the implementation of the brownfields agreement, the brownfields
property will be suitable for the uses specified in the agreement while fully protecting public health
and the environment instead of being remediated to unrestricted use standards.” It is in the context
of these risk-based concepts that H&H’s professional engineer makes the following statement:

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

SEAL:

Trinh DeSa North Carolina PE (#044470) Hart & Hickman, PC (#C-1269)
11
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
2.0 Design Basis

The VIMS design drawings are included in Appendix B (Sheets VM-0 through VM-9) and will be
used to guide construction of the VIMS. The proposed Site redevelopment plan (Figure 2) includes
one residential apartment building which will be constructed with a concrete slab-on-grade and
column foundations. The building will not contain commercial spaces or pour-back areas, as
depicted on the VIMS design drawings. The proposed building will include a connected two-story
podium style open-air parking deck which will be constructed adjacent to residential units and
amenity areas. To reduce the potential for structural vapor intrusion, the VIMS will operate as a
passive sub-slab venting system that includes a network of horizontal sub-slab and vertical above-
slab riser piping connected to wind ventilators installed above the building roof to enhance the
passive system. The VIMS will also include a vapor barrier installed below enclosed areas of the
slab and along applicable vertical walls as described in the following sections.

2.1 Base Course Layer and Vapor Barrier

The VIMS includes placement of a minimum 4-inch base course stone (gravel) layer consisting of
high permeability stone (washed #57 stone, or similar high permeability stone approved by the
design engineer) below the concrete slab of the building. A vapor liner (vapor barrier) will be
installed above the base course stone layer and directly beneath the slab. The vapor liner will also
be installed underneath of and along vertical walls within elevator pits and on vertical sub-grade
retaining walls backfilled with soil that are located adjacent to enclosed or occupiable spaces. A
horizontal collection piping network will be installed within the base course stone layer below the
ground floor slabs prior to placement of the vapor liner. The horizontal vapor collection piping is
discussed further in Section 2.2. below. The piping layouts are shown on the VIMS design
drawings (Appendix B).

The vapor barrier will consist of a VOC-rated vapor barrier, such as Vaporblock® Plus 20
(VBP20) manufactured by Raven Industries (Raven), or Drago® Wrap Vapor Intrusion Barrier
(Drago Wrap) manufactured by Stego® Industries (Stego). Vapor barriers will be installed per
12
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
manufacturer installation instructions. Technical specifications for each vapor liner products listed
above are included in Appendix C.

The vapor barrier will be installed over the base course stone layer or applicable vertical sub-grade
walls and footers to cover the areas shown on the design sheets. Each vapor liner manufacturer
recommends select sealing agents (mastics, tapes, etc.) for their product. In accordance with
manufacturer installation instructions, alternative vapor liner products that are not approved by the
manufacturers for sealing should not be used, unless approved by the design engineer and specific
manufacturer.

The exterior edges of the vapor liner will be attached and sealed to building footings and subsurface
concrete features utilizing the tape specified in the manufacturer instructions. Seams within the
building envelope will have a minimum of 6-inches or 12-inches of overlap (depending on the
vapor barrier manufacturing specifications) and will be sealed with the tape specified in the
manufacturer instructions. If the vapor 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 design
engineer certifying the VIMP, an alternative sealant product specified by the vapor liner
manufacturer can be used, such as Raven Pour-N-Seal™ or manufacturer specified mastics.
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 use of
hollow piping by contractors to support their utilities in preparation for concrete pours is not
permitted and contractors will be instructed to remove hollow piping observed during the field
inspections.

The VIMS layouts are shown on Sheets VM-0 and VM-1, riser locations on each level of the
building are shown on Sheets VM-2 through VM-6, and section details are shown on Sheets VM-
13
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
7 and VM-8 (Appendix B). Above-slab accessible riser duct piping will be permanently identified
by means of a tag or stencil at a minimum of once every 10-linear ft with “VAPOR MITIGATION
SYSTEM – CONTACT MAINTENANCE”. The labels shall include a printed label or painted
label with stencils adhered directly to the pipe. Similar labels will also be affixed near the exhaust
discharge on the roof. Solid sections of VIMS piping shall maintain a minimum 1% slope
(minimum 1/8” per foot) toward sections of the sub-slab vent network to drain potential
condensation water. Product specifications for the sub-slab collection network are provided in
Appendix C.

The vertical exhaust riser pipes will terminate above the roofline. To enhance the passive VIMS,
wind turbine ventilators such as the Empire Model TV04SS (stainless steel) will be installed on
the discharge end of the vertical riser piping above the building roofline. The purpose of the
ventilators is to further promote air exhaust from the risers. Equivalent ventilators may also be
used pending approval of the design engineer.

2.2 Horizontal Collection Piping and Vertical Riser Piping

Passive sub-slab venting will be accomplished using horizontal slotted or perforated collection
piping which will collect vapor from beneath the ground floor slabs and discharge the vapors above
the building roofline. The sub-slab piping will consist of 3-inch diameter Schedule 40 (SCH 40)
PVC piping and fittings, unless otherwise specified in the design drawings (Appendix B). As an
alternative to the sub-slab slotted or perforated pipe, soil gas collector mat, a 1” x 12” rectangular
conduit with manufacturer supplied fittings may be used pending approval of the design engineer.

Due to the height of the building (eight floors), the proposed development is currently subject to
local building code high-rise requirements. As such, above-slab solid piping will consist of 3-inch
diameter metal piping with air-tight fittings for use under a drain, waste, vent (DWV) application
for construction under high-rise building code. If the local building codes are modified to allow
mid-rise construction materials, then 3-inch diameter SCH 40 PVC solid pipe and fittings may be
used in-lieu of the metal above-slab pipe. Solid sections of VIMS piping shall maintain a minimum
14
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
1% slope toward slotted sections to drain potential condensation water. Product specifications for
the sub-slab collection piping are provided in Appendix C.

The vertical exhaust riser pipes will terminate above the roofline. To enhance the passive VIMS,
wind turbine ventilators such as the Empire Model TV04SS (stainless steel) ventilators will be
installed on the discharge end of the 4-inch SCH 40 PVC vertical riser piping above the building
roofline to promote air exhaust from the risers. Equivalent ventilators may also be used pending
approval of the design engineer. Exhaust discharge locations must be a minimum of 2 ft above
the roofline and a minimum 10 ft from an operable opening (e.g., door or window) or air intake
into the building. Note that the exhaust locations on the roof depicted in the VIMS design may be
repositioned within the requirements specified above and pending approval by the design engineer
certifying the VIMP. Product specifications for the proposed wind ventilators are provided in
Appendix C. Electrical junction boxes (120VAC) will be installed on the roof in proximity to riser
exhaust discharges should connection of an electrical (active) fan be warranted in the future.

2.3 Monitoring Points

Twelve (12) monitoring points constructed with 2-inch diameter SCH 40 PVC will be installed as
part of the VIMS to conduct effectiveness testing (see Section 4.0), including vacuum influence
measurements, and for the collection of sub-slab soil gas samples for laboratory analysis. In
addition, one temporary monitoring point will be installed within a residential unit on the ground
floor that will be used for influence testing (Section 4.0). After testing, the temporary monitoring
point can be abandoned per approval of DEQ using vapor barrier manufacturer-approved air-tight
sealants and concrete to match the existing slab elevation. The monitoring point locations are
shown on the VIMS design drawings (Appendix B).

In general, monitoring points are placed at remotely distant locations from vertical riser piping
locations and in representative areas of the ground floor enclosed areas. To limit disturbance to
residents during future monitoring events, the majority of the monitoring point access ports will
be located in hallway corridors, maintenance rooms, or amenity spaces and protected by a floor
clean-out style cover. Additionally, one monitoring point will be located in each of the stairwells
15
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
within the building. Some monitoring points will be connected to extended sub-slab horizontal
pipes which place the intakes of the monitoring points below occupied spaces. The extended
monitoring points are expected to have no more than approximately 6 ft of extension pipe. Product
specifications for the proposed floor cleanout covers and pipe termination screens are provided in
Appendix C.

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

2.4 General Installation Criteria

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

For each phase of construction (above and below slab), construction contractors and sub-
contractors shall use “low or no VOC” products and materials. Furthermore, the construction
contractors shall not use products containing the compounds PCE or TCE. Prior to submittal of a
VIMS installation completion report, the construction contractor and sub-contractors shall be
directed to provide safety data sheets (SDSs) for products and materials used during construction.
16
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
SDSs provided by the contractor and sub-contractors will be included in the VIMS installation
completion report.

Utility Trench Dams
Previous assessment activities indicated a localized area of VOCs that could contribute to potential
unacceptable levels of vapors in the subsurface in the northern portion of the Site (Section 1.0).
Utility trench dams are sometimes warranted to reduce the potential for lateral vapor migration
along transmissive backfill layers (e.g., gravel, sand, etc.) from areas of elevated contamination to
areas of lower contamination. Based on proposed utility maps for the Site, no sub-surface utility
trenches that connect the northern portion of the Site to enclosed portions of the building in the
southern portion of the Site, where ground floor residential units are located, are proposed to be
installed. Therefore, sub-surface utility trench dams are not warranted at the Site.

Water and Fire Pump Room Conduits
As depicted on Sheet VM-1, a water pump room is located in the northwestern portion of the
building and a fire pump room is located on the southeastern portion on the ground floor of the
parking deck. The floor above these rooms contain residential units. The purpose of the water
pump room is to house pumps and equipment associated obtaining potable water supply from the
utility main into the building. The fire pump room will contain pumps and equipment associated
with the fire suppression system. Each room will contain several pressurized water pipes that may
run through the ceiling to floors located above. The conduit for each pipe from these rooms will
contain a fire stop collar and/or caulking to create an air-tight seal around the pipe for fire
prevention methods. This conduit seal will also prevent air transfer from the ground floor to upper
levels of the building where residential units are located. The water pump and fire pump rooms
will also contain vapor barrier installed below the slab which will be inspected in accordance with
Section 3.0. Based on the elevated levels of contaminants of concern in the northwestern portion
of the Site, the water pump room will also contain vent piping below the slab. H&H will document
the installation of the fire prevention seals on the conduits in these rooms during VIMS inspections
and will include information about the seals in the VIMS Installation Report (Section 7.0).
17
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
3.0 Quality Assurance / Quality Control

For quality assurance and quality control (QA/QC) purposes, inspections will be conducted for
each section of slab during the following phases of VIMS installation activities:

• after vapor barrier installation along the sub-grade elevator pits and applicable vertical
retaining walls prior to backfilling;
• after installation of horizontal collection system and gravel base placement;
• after vapor barrier installation and prior to pouring the concrete building slab; and
• after installation of vertical exhaust riser pipes and ventilators.

In addition, the fire prevention seals on the conduits from the water pump room and fire pump
room will be observed after installation and documented in the inspection forms. Please note that
additional inspections will be conducted if the VIMS is activated to verify that the electric fans are
functioning properly. Each inspection will be performed by, or under direction of, the design
engineer certifying the VIMP. No component of the VIMS shall be covered until an inspection is
completed. The inspections will include field notes and photographs for each section of slab.

The engineer certifying the report, or designee, will provide DEQ with a 48-hour notice prior to
conducting the inspections pending notification from the installer. Please note that a 48-hour
notice to DEQ may not be possible in all instances (for example, if a concrete pour needs to happen
in one day due to weather concerns).
18
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
4.0 Post-Construction System Effectiveness Testing

Influence Testing
Following installation of the horizontal extraction piping, vapor barrier, and concrete slab pours,
but prior to building occupancy, influence testing will be conducted on the VIMS vent piping
network to confirm that the VIMS will provide proper vacuum influence below the slab, if the
system is activated with electric fans in the future and to test the connectivity of the sub-slab
annular space to the risers. For the influence test, variable speed vapor extraction fans will be
attached to the vertical risers and vacuum will be measured at the extraction fan locations and at
the vacuum measuring points for the section of slab being evaluated. 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 may be
considered sufficient evidence of sub-slab VIMS influence per evaluation of the design engineer.
The results of the influence test will be submitted to DEQ with the VIMS installation completion
report.

Sub-Slab Soil Gas Sampling
Upon completion of successful influence testing and prior to occupancy of the Site building a total
of nine (9) sub-slab soil gas samples will be collected. The sampling locations include four (4)
monitoring points located in the basement level area (MP-1, MP-3, MP-4, and MP-5) and
monitoring points located in the enclosed areas on Level 1 within the parking deck (MP-6, MP-
6A, MP-7, MP-8, and MP-9), which includes the stairwells, elevator lobbies, and water pump
room. The preoccupancy sub-slab soil gas sampling event will be conducted a minimum of two
weeks following the installation of the turbine ventilators.

During each sub-slab soil gas sampling event, one duplicate sub-slab soil gas sample will be
collected for quality assurance/quality control (QA/QC) purposes. The duplicate will be collected
from one of the measuring points using a stainless-steel sample “T” fitting which allows two vapor
samples to be collected simultaneously from a single measuring point. The vacuum measuring
points will be sampled by securing an expandable cap with a sample port (e.g., an Ex-Cap) into
19
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
the vacuum measuring point to create an air-tight seal. The sub-slab vapor sample will then be
collected using the recommended procedures presented in the DWM VI Guidance.

Prior to sample collection, a leak test will be performed on each vacuum measuring point location
by placing a shroud around the sealed sampling point and sample train including the Summa
canister, flooding the air within the shroud with helium gas, then purging soil gas from the
sampling point with an electric air pump or syringe and collecting the purged vapor into a Tedlar®
bag. A helium gas detector will be used to measure helium concentrations within the shroud and
the Tedlar® bag sample. The leak test will be considered successful if the helium concentration
measured in the soil gas purged from the sampling point and collected into the Tedlar® bag is less
than 10% of the concentration measured within the shroud. H&H field personnel will record the
results of the helium leak test in field documentation. In total, a minimum of 3 volumes will be
purged from the sample train prior to and during the leak test.

The sub-slab soil gas samples will be collected over an approximate 10-minute period using
laboratory supplied batch certified 1-liter or 1.4-liter Summa canisters and laboratory supplied
flow regulators calibrated with an approximate flow rate of 100 milliliters per minute. The vacuum
of the Summa canisters will be measured at the start and end of the sampling event and will be
recorded on the chain-of-custody and within the field notes. The vacuum in each canister at the
conclusion of the sampling event must remain above 0 inches of mercury (in Hg), with a target
vacuum of approximately 5 in Hg, to allow for proper laboratory analysis of the sample.

The DWM VI Guidance recommends initial groundwater and soil gas assessment activities be
completed to reduce the analyte list for future vapor intrusion assessments and aid in eliminating
background sources, therefore the sub-slab samples will be analyzed for a select list of VOCs. The
VOCs for the select analyte list will include any VOC on the EPA Method TO-15 list detected
during previous assessment activities in any media (soil, groundwater, and soil gas), and daughter
products of PCE and TCE. As such, H&H will submit the sub-slab soil gas samples to a qualified
laboratory under standard chain of custody protocols for analysis of the select list of VOCs by
EPA Method TO-15. The laboratory will be instructed to report J-flag concentrations for each
sample and to report received canister vacuum. In addition, H&H will request that the laboratory
20
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
report compound concentrations to the lower of the laboratory method detection limits or the DEQ
DWM Residential SGSLs.

Upon receipt of the sub-slab soil gas sample analytical results, H&H will use the most current
version of the DEQ Risk Calculator to evaluate potential vapor intrusion risks for a residential use
scenario based on the proposed residential apartment development. In the case where calculated
cumulative risks are less than 1x10-4 for potential carcinogenic risks and below a hazard index of
1 for potential non-carcinogenic risks, no additional pre-occupancy sub-slab sampling will be
warranted.

Note that the generic sub-slab soil gas to indoor air attenuation factor that is the basis for DEQ risk
calculations is conservative and is intended to estimate a potential upper-bound indoor air
concentration accounting for temporal variability. DEQ DWM VI Guidance indicates that if soil
gas concentrations do not exceed acceptable risk levels, typically no further investigation is
necessary. However, as a conservative measure due to the presence of TCE at the Site, H&H will
conduct an initial indoor air event concurrent with the pre-occupancy sub-slab soil gas sampling
event.

Indoor Air Sampling
The building is intended to be occupied shortly following completion and initialization of the
HVAC system. There is typically insufficient time before occupancy to allow for the HVAC
system to become operational prior to indoor air sampling. Therefore, the pre-occupancy indoor
air sampling event will be conducted following construction and completion of the VIMS and the
portion of the building being sampled is substantially complete (e.g., windows and doors installed
and sealed) with no openings to outdoor air which could potentially bias the indoor air data in the
area being sampled.

H&H will collect two indoor air samples (IAS-1 and IAS-2) from the enclosed occupiable spaces
on the basement level. Additionally, one indoor air sample (IAS-3) will be collected from within
the northwestern stairwell (ST1) due to the detection of TCE above the DEQ DWM Residential
and Non-Residential SGSLs in the previous soil-gas sample (see Section 1.0) from this location,
21
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
and one indoor air sample will be collected from the elevator lobby in the north central portion of
the building (IAS-4). The indoor air samples will be collected concurrently (within 48-hours) with
collection of the co-located sub-slab soil gas samples. To prevent interface of soil gas vapors with
the indoor air samples, the indoor air samples will be collected prior to the sub-slab soil gas
samples. Note, due to construction phasing of the different areas, several sampling events may be
required based on the timing of completion/enclosure of each of the building areas.

Each indoor air sample will be collected in accordance with the DWM VI Guidance, using a 6-
liter individually-certified Summa canister over a 24-hour period and analyzed for select VOCs by
EPA Method TO-15. Similar to the sub-slab soil gas samples, the VOCs for the select analyte list
will include any VOC on the TO-15 list detected during previous assessment activities in any
media (soil, groundwater, and soil gas), and daughter products of PCE and TCE. The proposed
select indoor air analyte list is included as Appendix D.

The intake for each indoor air Summa canister will be placed at a height consistent with the
breathing zone. Periodic checks will be conducted by H&H to monitor the pressure within the
Summa canisters to confirm adequate sample volume is collected. The vacuum of the Summa
canisters will be measured at the start and end of the sampling event and will be recorded on the
chain-of-custody and field notes. The vacuum at the end of the sampling event should remain at
or above approximately -5 inches of mercury (in Hg), as measured with the field vacuum gauge.
In no instance shall the canister vacuum reach 0 in Hg.

Following sample collection, the samples will be shipped to the laboratory under standard chain
of custody protocol. The analytical laboratory will be instructed to report J-flag concentrations for
each sample. For the indoor air samples, the laboratory will be instructed to analyze for the select
TO-15 list of compounds. In addition, the laboratory will be requested to report results to reporting
limits below the DEQ Residential Vapor Intrusion Indoor Air Screening Levels (IASLs). Per
standard procedure, the laboratory will report the vacuum levels of the canisters upon receipt by
the laboratory. For QA/QC purposes, one duplicate sample and one background air sample will
be collected 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.
22
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx

Note, new construction materials, such as paint, carpet, etc., which could be sources of VOCs in
indoor air, may cause interference with Site-specific compounds during indoor air sampling.
Therefore, the construction contractor will be requested to provide safety data sheets (SDSs) for
materials used during construction and the SDSs will be submitted to DEQ.

Based upon the results of the indoor air sampling, H&H will make recommendations in general
accordance with the DWM VI Guidance. It is anticipated that the recommendations will consist
of one of the following:

• The VIMS is effective, and no further sampling of indoor air is warranted (per the DWM
VI Guidance, in the case where calculated cumulative risks are below 1x10-4 for potential
carcinogenic risks and below a hazard index of 1 for potential non-carcinogenic risks).

• Additional indoor air sampling is warranted to confirm that the VIMS is effective (per the
DWM VI Guidance, in the case where calculated cumulative risks are greater than 1x10-4
for potential carcinogenic risks or above a hazard index of 1 for potential non-carcinogenic
risks).

Please note that DEQ may require additional indoor air sampling to confirm that the VIMS is
effective if results suggest a completed vapor intrusion pathway, even if cumulative risk is below
a LICR of 1x10-4 or HI of 1. Prior to completing additional indoor air sampling, an evaluation of
potential background sources will be completed and inspections will be performed to determine if
preferential vapor intrusion pathways may exist or if compound detections may be attributable to
building and construction material off-gassing.

If additional indoor air sampling is required, modifications to the existing system will be evaluated
to increase the VIMS effectiveness. Should results of post-construction indoor air testing continue
to indicate potential unacceptable vapor intrusion risks to occupants of the building(s), active fans
may be installed at the discharge end of the riser duct piping to convert the system from passive to
active sub-slab depressurization. DEQ will be notified of alterations to the system. If the system
23
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
were transitioned to an active system in the future, a work plan will be submitted to DEQ to
document a schedule for additional monitoring, such as annual vacuum measurements.

Sub-Slab Gas and Indoor Air Sampling Reporting
Following receipt of analytical results, the laboratory report will be reviewed and DEQ will be
notified in the event that TCE concentrations in indoor air or sub-slab indicate potential vapor
intrusion pathways may exist. In accordance with the DEQ DWM TCE Indoor Air Inhalation
Immediate Action Levels and Response guidance (dated July 2019), DEQ will be notified within
if TCE is detected at a concentration exceeding 2.1 µg/m3 in indoor air based on the residential
use of the building. Note, that no residents will be living in the building during the pre-occupancy
indoor air sampling. DEQ will also be notified prior to report submittal if sub-slab and indoor air
samples indicate a completed pathway exists to discuss whether additional sampling or other
measures are warranted. A report of the sub-slab gas and indoor air sampling will be submitted to
DEQ with the VIMS installation completion report.

24
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
5.0 Post-Occupancy Testing

The VIMS is proposed as a passive system which will utilize sub-slab vapor extraction through
vapor extraction piping and wind turbine ventilators located on the risers above the roof. As such,
post-occupancy differential pressure testing is not anticipated. If the VIMS is converted to an
active system based on results of pre-occupancy or post-occupancy sub-slab gas and/or indoor air
assessment results, proposed modifications to the VIMP including modifying the VIMS design,
testing and analytical sampling requirements, and details for long-term differential pressure
monitoring across the slab will be submitted to the DEQ Brownfields Program for approval prior
to implementation. Specifications for the potential fan to be used, if conversion to the active
system is deemed necessary, are included in Appendix C. However, a different fan may be
specified by the design engineer based on the influence testing results.

Post-occupancy sub-slab soil gas and indoor air sampling is anticipated to be performed on a semi-
annual basis for two years following building occupancy. The frequency, amount, and locations
of the sub-slab and indoor air sample for the post-occupancy sampling events may be reduced or
modified depending on the pre-occupancy sampling results, pending DEQ review and approval.
A recommendation regarding the post-occupancy sub-slab soil gas and indoor air sampling will be
provided in the VIMS installation report based on the pre-occupancy sampling results and risk
calculations.

The post-occupancy sampling will be conducted using the procedures described in this VIMP.
Further, after each post-occupancy sampling event, if the sampling results indicate consistent or
decreasing concentrations within acceptable risk levels, a request to modify or terminate sampling
may be submitted for DEQ approval. No changes to the sampling frequency or termination of
sampling will be implemented until written approval is obtained from DEQ.

25
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
6.0 Future Tenants & Building Uses

The future use of the proposed Site building includes residential apartments and associated amenity
spaces. After occupancy of the Site buildings, VIMS maintenance and upkeep will be the
responsibility of the building owner or property management group. If vapor mitigation
components are damaged or need to be altered for building renovations, the building owners or
management will be instructed to contact appropriate parties to conduct proper maintenance.

A North Carolina licensed Professional Engineer (NC PE) will be contacted to oversee or inspect
the modifications or repair activities, and a report shall be submitted to DEQ detailing the repairs
or alterations. To aid in identification of the vapor mitigation piping, the construction contractor
will label the pipe (see Section 2.2) on accessible piping at intervals of no greater than 10-linear
feet.

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

26
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/trammell crow residential - tcr/tcr-003 press club cleaners/vimp/report/rev 1/alexan loso vimp - press club cleaners_rev 1.docx
7.0 Reporting

A VIMS Installation Completion Report (sealed by a NC-licensed PE) documenting installation
activities associated with the VIMS will be submitted to DEQ following confirmation that the
mitigation system is properly installed and effectively mitigating potential vapor intrusion risks to
building occupants. The report will include a summary of VIMS installation activities including
QA/QC measures, pre-occupancy system effectiveness testing including sub-slab and indoor air
assessment results, inspection photographs (including locations of penetration banks), SDSs, as-
built construction drawings, and VIMS effectiveness testing results. The report will also include
a statement provided by the design engineer as to whether the VIMS was installed in accordance
with the DEQ approved VIMP and is protective of public health as defined in Section 1.0, and as
evidenced by the VIMS inspections performed by the engineer or designee of the design engineer,
results of the influence testing, results of the analytical testing, and QA/QC measures as described
in this VIMP. Deviations from the approved design will be provided in the report.

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

After each semi-annual post-occupancy sub-slab soil gas and indoor air sampling event, a report
will be submitted to DEQ to document the sampling activities and results with recommendations
for future post-occupancy sampling (Section 5.0).

Figures
USGS The National Map: National Boundaries Dataset, 3DEP ElevationProgram, Geographic Names Information System, National HydrographyDataset, National Land Cover Database, National Structures Dataset, andNational Transportation Dataset; USGS Global Ecosystems; U.S. CensusBureau TIGER/Line data; USFS Road Data; Natural Earth Data; U.S.Department of State Humanitarian Information Unit; and NOAA NationalCenters for Environmental Information, U.S. Coastal Relief Model. Datarefreshed May, 2020.
SITE LOCATION MAP
PRESS CLUB CLEANERSSOUTH BOULEVARD AND HARTFORD AVENUECHARLOTTE, NORTH CAROLINA
DATE: 11-8-21
JOB NO: TCR-003
REVISION NO: 0
FIGURE NO: 1
2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology
TITLE
PROJECT
0 2,000 4,000
SCALE IN FEET
SITE
Pa
t
h
:

S
:
\
A
A
A
-
M
a
s
t
e
r

P
r
o
j
e
c
t
s
\
T
r
a
m
m
e
l
l

C
r
o
w

R
e
s
i
d
e
n
t
i
a
l

-

T
R
C
\
T
C
R
-
0
0
3

P
r
e
s
s

C
l
u
b

C
l
e
a
n
e
r
s
\
P
h
a
s
e

I
\
F
i
g
u
r
e
s
\
F
i
g
u
r
e
-
1
.
m
x
d
N
U.S.G.S. QUADRANGLE MAP
CHARLOTTE WEST AND CHARLOTTE EAST,NORTH CAROLINA 2019
QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC)
MW-2
MW-4MW-3
MW-1
REVISION NO. 0
JOB NO. TCR-003
DATE: 9-6-22
FIGURE NO. 3
FORMER PRESS CLUB CLEANERS
SOUTH BOULEVARD AND HARTFORD AVENUE
CHARLOTTE, NORTH CAROLINA
SITE REDEVELOPMENT MAP
LEGEND
SITE PROPERTY BOUNDARY
PARCEL LINE
CATS LIGHT RAIL
MONITORING WELL
PROPOSED RESIDENTIAL UNITS
PROPOSED PARKING DECK
NOTES:
1.AERIAL IMAGERY OBTAINED FROM MECKLENBURG
COUNTY GIS, 2022.
2.BASE DATA OBTAINED FROM MECKLENBURG COUNTY
GIS, 2022.
3.PROPOSED REDEVELOPMENT PLAN BASED ON SITE PLAN
PREPARED BY HORD, COPLAN, AND MACHT DATED
OCTOBER 27, 2021.
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VACANT LAND
(3229 SOUTH BOULEVARD)
WES
T
O
N

S
T
R
E
E
T
RESIDENTIAL
STAIRWELL
H
A
R
T
F
O
R
D

A
V
E
N
U
E
SO
U
T
H

B
O
U
L
E
V
A
R
D
RESIDENTIAL
MULTI-TENANT COMMERCIAL
(3401 SOUTH BOULEVARD)
BLUME SUPPLY INC.
(3316 SOUTH BOULEVARD)
GRACIE BARRA
BRIZILLIAN JIU-JITSU
(3324 SOUTH BOULEVARD)
QUIKTRIP
(116 CLANTON ROAD)
STAIRWELL
ELEVATOR PIT
STAIRWELL
ELEVATOR PIT
ELEVATOR PIT
STAIRWELL
S:\
A
A
A
-
M
a
s
t
e
r

P
r
o
j
e
c
t
s
\
T
r
a
m
m
e
l
l

C
r
o
w

R
e
s
i
d
e
n
t
i
a
l

-

T
C
R
\
T
C
R
-
0
0
3

P
r
e
s
s

C
l
u
b

C
l
e
a
n
e
r
s
\
V
I
M
P
\
F
i
g
u
r
e
s
\
T
C
R
-
0
0
3
_
S
I
T
E

M
A
P

R
E
D
E
V
_
2
0
2
2
0
9
0
6
.
d
w
g
,

9
/
6
/
2
0
2
2

1
:
3
7
:
5
0

P
M
,

D
W
G

T
o

P
D
F
.
p
c
3

Appendix A Excerpts from Previous Assessment Activities
MW-2
MW-4MW-3
MW-1
REVISION NO. 0
JOB NO. TCR-003
DATE: 7-19-22
FIGURE NO. 3
FORMER PRESS CLUB CLEANERS
SOUTH BOULEVARD AND HARTFORD AVENUE
CHARLOTTE, NORTH CAROLINA
SAMPLE LOCATION MAP
LEGEND
SITE PROPERTY BOUNDARY
PARCEL LINE
CATS LIGHT RAIL
MONITORING WELL
PROPOSED RESIDENTIAL UNITS
PROPOSED PARKING DECK
SUB-SLAB SOIL GAS AND
METHANE MONITORING POINT
EXTERIOR SOIL GAS AND
METHANE MONITORING POINT
ALIQUOT SOIL BORING LOCATION
NOTES:
1.AERIAL IMAGERY OBTAINED FROM MECKLENBURG
COUNTY GIS, 2022.
2.BASE DATA OBTAINED FROM MECKLENBURG COUNTY
GIS, 2022.
3.PROPOSED REDEVELOPMENT PLAN BASED ON SITE PLAN
PREPARED BY HORD, COPLAN, AND MACHT DATED
OCTOBER 27, 2021.
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
VACANT LAND
(3229 SOUTH BOULEVARD)
WES
T
O
N

S
T
R
E
E
T
RESIDENTIAL
STAIRWELL
H
A
R
T
F
O
R
D

A
V
E
N
U
E
SO
U
T
H

B
O
U
L
E
V
A
R
D
RESIDENTIAL
MULTI-TENANT COMMERCIAL
(3401 SOUTH BOULEVARD)
BLUME SUPPLY INC.
(3316 SOUTH BOULEVARD)
GRACIE BARRA
BRIZILLIAN JIU-JITSU
(3324 SOUTH BOULEVARD)
QUIKTRIP
(116 CLANTON ROAD)
STAIRWELL
ELEVATOR PIT
STAIRWELL
ELEVATOR PIT
ELEVATOR PIT
STAIRWELL
COMP-2
BF-SG-1
BF-SSV-1
BF-SG-4
BF-SG-5
BF-SG-3
BF-SG-6
BF-SG-7
COMP-1
S:
\
A
A
A
-
M
a
s
t
e
r

P
r
o
j
e
c
t
s
\
T
r
a
m
m
e
l
l

C
r
o
w

R
e
s
i
d
e
n
t
i
a
l

-

T
C
R
\
T
C
R
-
0
0
3

P
r
e
s
s

C
l
u
b

C
l
e
a
n
e
r
s
\
P
h
a
s
e

I
I

E
S
A
\
F
i
g
u
r
e
s
\
T
C
R
-
0
0
3
_
S
I
T
E

M
A
P
_
2
0
2
2
0
7
0
7
.
d
w
g
,

F
I
G

3
,

7
/
1
9
/
2
0
2
2

3
:
1
9
:
2
3

P
M
,

s
p
e
r
r
y
Table 1
Summary of Soil Analytical Data
Former Press Club Cleaners
Charlotte, North Carolina
H&H Job No. TCR-003
Evaluation Area Western Portion
of the Site
Sample ID COMP-1
Date
Depth (ft bgs)0-2 0-2 0-2
Sample Type Range Mean Range
Units
VOCs (8260D)
2-Butanone (MEK) 0.0612 J, C7 0.0459 J, C7 0.0401 J, C7 5,500 41,000 ---- -- --
Ethylbenzene <0.0033 0.0043 J 0.0033 J 6.1 27 ---- -- --
Naphthalene <0.0038 0.0062 J 0.0048 J 2.1 8.8 ---- -- --
Tetrachloroethylene 0.0064 J, C8 <0.0025 <0.0020 17 82 ---- -- --
Toluene <0.0020 0.0085 IK 0.0070 IK 990 9,700 ---- -- --
1,2,4-Trimethylbenzene <0.0020 <0.0021 0.0037 J 63 370 ---- -- --
m&p-Xylene <0.0049 0.0116 J 0.0090 J 120 520 ---- -- --
o-Xylene <0.0032 0.0076 J 0.0068 140 590 ---- -- --
Xylene (Total)<0.0041 0.0191 0.0159 120 530
SVOCs (8270E)
Anthracene <0.137 <1.180 1.450 J 3,600 45,000 ---- -- --
Benzo(a)anthracene <0.140 <1.200 5.230 1.1 21 ---- -- --
Benzo(a)pyrene <0.145 <1.250 3.910 0.12 2.1 ---- -- --
Benzo(b)fluoranthene <0.140 <1.200 6.950 1.2 21 ---- -- --
Benzo(g,h,i)perylene <0.163 <1.400 2.560 J NE NE ---- -- --
Benzo(k)fluoranthene <0.147 <1.270 3.020 J 12 210 ---- -- --
Chrysene <0.152 <1.310 7.120 120 2,100 ---- -- --
Fluoranthene <0.143 1.730 J 14.300 480 6,000 ---- -- --
Indeno(1,2,3-cd)pyrene <0.165 <1.420 2.420 J 1.2 21 ---- -- --
Phenanthrene <0.137 <1.180 13.300 NE NE ---- -- --
Pyrene <0.170 <1.460 10.000 360 4,500 ---- -- --
Metals (6020B/7471B/7199)
Arsenic 2.3 2.7 2.2 0.68 3.0 --1.0 - 18 4.8 1.28 - 3.03
Barium 41.3 75.3 92.3 3,100 47,000 --50 - 1,000 356 38.1 - 159
Cadmium 0.043 J 1.7 1.3 1.4 20 --1.0 - 10 4.3 ND - 2.49
Chromium (total)44.1 38.3 45.5 NE NE --7.0 - 300 65 59.7 - 174
Chromium (VI)<0.319 1.67 0.941 J 0.31 6.5 --NS NS ND - 0.837
Chromium (III)44.1 36.63 44.56 24,000 350,000 --NS NS 47.1 - 173
Lead 16.8 405 296 400 800 --ND - 50 16 7.33 - 296
Mercury 0.027 0.070 0.11 4.7 70 --0.03 - 0.52 0.121 0.0365 - 0.615
Selenium 0.57 J 0.50 J 0.39 J 78 1,200 --<0.1 - 0.8 0.42 0.566 - 1.04
Silver <0.18 0.40 J 0.33 J 78 1,200 --ND - 5.0 NS ND - 0.716
Metals (6010 TCLP)
Lead --0.49 mg/L 0.60 mg/L -- --5 mg/L -- -- --
Notes:
1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) dated January 2022.
2) Environmental Protection Agency (EPA) Maximum Concentrations of Contaminants for Toxicity Characteristics Leaching Procedure (TCLP) regulatory level dated November 2004.
3) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005. Cd and Ag concentrations were taken from Southeastern and Conterminous U.S. Soils.
4) Local metal background soil sample results from Charlotte Van and Storage and Quality Products Company Brownfields (Brownfields Project No. 23057-19-060).
Soil concentrations are reported in milligrams per kilogram (mg/kg) unless otherwise noted.
Compound concentrations are reported to the laboratory method detection limits.
Laboratory analytical methods are shown in parentheses.
With the exception of metals, only constituents detected in at least one sample are shown in the table above.
Composite soil samples that were analyzed for VOCs were collected from undisturbed portions of soil and placed directly into laboratory supplied glassware.
Bold values exceed the Residential PSRGs and background levels in the case of metals.
Underlined values exceed the Industrial/Commercial PSRGs.
VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; ft bgs= feet below ground surface; NS = not specified; NE = not established; -- = not applicable; ND = not detected; mg/L = milligrams per liter
J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.
C7 = Analyte is a possible laboratory contaminant (not present in method blank).
C8 = Result may be biased high due to carryover from previously analyzed sample.
IK = The recalculated concentration of the calibration standard(s) did not meet method acceptance criteria. The laboratory reported concentration should be considered an estimated value.
Eastern Portion of Site
6/15/2022 Regional Background Metals
in Soil (3)
Screening Criteria
mg/kg
Residential
PSRGs (1)
Industrial/
Commercial
PSRGs (1)
Local Background
Metals in Soil (4)
Composite
COMP-2/COMP-DUP
Maximum
Concentration for
TCLP (2)
https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Trammell Crow Residential ‐ TCR/TCR‐003 Press Club Cleaners/Phase II ESA/Tables/Data Tables 20220727.xlsx
Table 1 (Page 1 of 1)
Hart & Hickman, PC
Table 2
Summary of Well Construction and Groundwater Depth Data
Former Press Club Cleaners
Charlotte, North Carolina
H&H Job No. TCR-003
Well ID Total Depth
(ft bgs)
Screen Length
(ft)
Screen Interval
(ft bgs)
Depth to
Groundwater
(ft bgs)
TOC Elevation
(ft above msl)
Groundwater
Elevation
(ft above msl)
MW-1 14 10 4-14 3.86 732.34 728.48
MW-2 20 10 10-20 11.44 739.79 728.35
MW-3 19 10 9-19 11.66 736.78 725.12
MW-4 14 10 4-14 3.24 714.98 711.74
Notes:
Depth to groundwater measurements were collected by H&H on June 15, 2022.
Benchmark elevations estalished by Pittman Professional Land Surveying on May 4, 2017.
TOC = top of casing; ft bgs = feet below ground surface; msl = mean sea level
https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Trammell Crow Residential - TCR/TCR-003 Press Club Cleaners/Phase II ESA/Tables/Data Tables 20220727.xlsx
8/4/2022
Table 2 (Page 1 of 1)
Hart & Hickman, PC
Table 3
Summary of Groundwater Analytical Data
Former Press Club Cleaners
Charlotte, North Carolina
H&H Job No. TCR-003
Evaluation Area
Sample ID MW-1 MW-2 MW-4
Date
Units
VOCs (8260D)
Chloroform <5.4 <0.43 1.7 1.7 0.83 J 70 0.81 3.6
cis-1,2-Dichloroethylene 165 <0.38 <0.38 <0.38 2.6 70 NE NE
Tetrachloroethylene 2,370 <0.29 <0.29 <0.29 65.6 0.7 12 48
Trichloroethylene 183 <0.38 <0.38 <0.38 1.8 31.04.4
Vinyl Chloride 20.5 <0.39 <0.39 <0.39 <0.39 0.03 0.15 2.5
SVOCs (8270E)ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL -- -- --
Metals (6020B/7470A)
Arsenic <0.087 0.82 J <0.087 <0.087 <0.087 10 NE NE
Barium 21.3 142 165 164 38.3 700 NE NE
Cadmium <0.060 <0.060 0.073 J 0.069 J <0.060 2NENE
Chromium (Total) 1.3 0.90 J 2.3 2.3 0.50 J 10 NE NE
Lead <0.077 0.35 J <0.077 0.34 J <0.077 15 NE NE
Mercury <0.12 <0.12 <0.12 <0.12 <0.12 1 0.18 0.75
Selenium 0.10 J 0.14 J <0.072 <0.072 0.093 J 20 NE NE
Silver <0.070 <0.070 <0.070 <0.070 <0.070 20 NE NE
Notes:
1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.
2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.
Concentrations are reported in micrograms per liter (µg/L).
Compound concentrations are reported to the laboratory method detection limits.
Laboratory analytical methods are shown in parentheses.
With the exception of metals, only constituents detected in at least one sample are shown in the table above.
Bold values exceed the 2L Standard.
Underlined values exceed the DWM Residential Vapor Intrusion GWSLs.
Shaded values exceed the DWM Non-Residential Vapor Intrusion GWSLs.
VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; -- = not applicable; BDL = below laboratory detection limit
J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.
µg/L
Screening Criteria
2L Standards (1) Residential
GWSLs (2)
Non-Residential
GWSLs (2)
MW-3/GW-DUP
6/17/2022
Upgradient Downgradient
https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Trammell Crow Residential ‐ TCR/TCR‐003 Press Club Cleaners/Phase II ESA/Tables/Data Tables 20220727.xlsx
8/5/2022
Table 3 (Page 1 of 1)
Hart & Hickman, PC
Table 4
Summary of Exterior and Sub-Slab Soil Gas Analytical Data
Former Press Club Cleaners
Charlotte, North Carolina
H&H Job No. TCR-003
Evaluation Area
Sample ID BF-SSV-1 BF-SG-1 BF-SG-3 BF-SG-5 BF-SG-6 BF-SG-7
Sample Date
Sample Type Sub-Slab Soil Vapor
Units
VOCs (TO-15)
Acetone 190 M 187 M 88.3 M 36.7 M 38.8 M 60.5 38.4 M 13.5 M NE NE
Benzene 0.413 153 159 12.3 10.8 19.9 9.28 0.981 12 160
Bromodichloromethane 29.0 <12.5 <12.2 <12.5 <0.616 <3.18 <12.7 <0.639 2.5 33
1,3-Butadiene <0.190 <4.14 31.8 <4.12 0.914 2.72 <4.20 <0.211 3.1 41
2-Butanone (MEK) 10.5 <5.51 21.1 10.6 9.24 18.6 8.91 1.86 35,000 440,000
Carbon disulfide 1.42 965 32.7 7.57 6.43 9.39 <5.91 2.11 4,900 61,000
Carbon tetrachloride 0.790 <11.8 <11.4 <11.7 <0.578 <2.98 <11.9 <0.600 16 200
Chlorobenzene <0.396 <8.60 <41.9 <8.57 0.464 J <2.18 <8.74 <0.439 350 4,400
Chlorodibromomethane 2.09 <15.9 <77.5 <15.9 <0.783 <4.04 <16.2 <0.813 NE NE
Chloroethane <0.227 <4.93 <4.80 <4.91 0.244 JM 1.78 M <5.01 <0.252 70,000 880,000
Chloroform 257 12.6 <8.88 <9.09 0.710 <2.31 <9.27 <0.466 4.1 53
Chloromethane 0.247 M <3.86 <3.76 <3.85 0.378 <0.979 <3.92 0.258 630 7,900
Cyclohexane 2.70 12.1 M <6.26 6.42 J 4.07 M <1.63 <6.53 3.35 M 42,000 530,000
Dichlorodifluoromethane (Freon 12) 2.74 <9.24 <9.00 <9.21 2.58 3.42 <9.39 1.15 700 8,800
1,1-Dichloroethene <0.341 71.8 <7.21 <7.38 <0.365 <1.88 <7.53 <0.378 NE NE
cis-1,2-Dichloroethene 1.88 32,873 20.5 <7.38 0.917 <1.88 <7.53 <0.378 NE NE
trans-1,2-Dichloroethene <0.341 371 <7.21 <7.38 <0.365 <1.88 <7.53 <0.378 NE NE
1,2-Dichloropropane <0.398 <8.64 <8.41 <8.61 0.478 J <2.19 <8.77 <0.441 25 330
Ethanol 114 14.2 J 9.49 J 9.10 J 7.99 7.72 58.2 3.61 NE NE
Ethyl acetate 3.13 <7.68 <7.48 <7.66 2.14 4.24 <7.80 0.891 490 6100
Ethylbenzene <0.374 185 83.5 M 35.6 39.1 24.8 <8.24 0.546 37 490
4-Ethyltoluene <0.423 32.5 M <44.7 9.43 J 13.4 4.41 M <9.33 <0.469 NE NE
n-Heptane 0.639 42.6 8,348 <7.63 6.20 3,484 53.7 7.29 2,800 35,000
n-Hexane 1.10 216 10,615 7.56 J 6.61 2,687 197 16.8 4,900 61,000
2-Hexanone 1.90 <7.66 <37.3 <7.63 1.31 <1.94 <7.78 0.538 210 2,600
Isopropyl alcohol 9.32 <4.59 <4.47 <4.58 2.47 4.01 J 5.52 J 1.1 J 1,400 18,000
Methyl-tert-butyl ether (MTBE)<0.310 <6.74 <6.56 <6.72 1.46 <1.71 6.84 <0.344 360 4,700
Methyl isobutyl ketone (MIBK) 0.809 M 9.89 <7.45 8.17 J 7.76 <1.94 <7.78 0.438 J 21,000 260,000
Methylene Chloride 1.77 9.97 7.88 <6.47 0.869 M <1.65 10.6 1.05 3,400 54,000
Naphthalene <0.451 <9.80 <47.7 <9.76 0.988 <2.49 <9.95 4.33 2.8 36
Propylene 2.94 110 2,517 68.4 M 74.9 124 M 687 7.27 21,000 260,000
1,1,2,2-Tetrachloroethane <0.591 <12.8 <62.5 <12.8 <0.631 29.7 <13.0 <0.655 13 21
Tetrachloroethene 526 3,549 <61.7 15.6 14.8 4.42 <12.9 1.80 280 3,500
Toluene 0.603 1,135 140 92.2 89.1 41.7 8.36 1.68 35,000 440,000
1,1,1-Trichloroethane 1.46 <10.2 <9.93 <10.2 <0.502 <2.59 <10.4 <0.521 35,000 440,000
Trichloroethene 7.83 10,011 <9.78 <10.0 1.55 <2.55 <10.2 <0.513 14 180
Trichlorofluoromethane (Freon 11) 2.42 <10.5 <10.2 <10.5 1.25 2.88 J <10.7 0.804 NE NE
1,1,2-Trichlorotrifluoroethane (Freon 113) 0.718 J, M <14.3 <13.9 <14.3 <0.705 <3.63 <14.5 <0.731 35,000 440,000
1,2,4-Trimethylbenzene <0.423 45.3 <44.7 16.9 M 27.1 4.53 <9.33 0.506 J, M 420 5,300
1,3,5-Trimethylbenzene <0.423 19.4 <44.7 <9.16 6.99 <2.33 <9.33 <0.469 420 5,300
Vinyl chloride 0.572 6,778 <5.31 <4.76 0.726 <1.21 <4.85 <0.244 5.6 280
o-Xylene <0.428 175 <39.5 27.3 36.1 11.3 <8.24 0.721 700 8,800
m&p-Xylene 0.412 J 703 74.7 80.0 93.3 27.3 9.78 M 1.44 700 8,800
Notes:
1) North Carolina Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Vapor Intrusion Sub-Slab & Exterior Soil Gas Screening Levels (SGSLs) dated January 2022.
Concentrations are reported in micrograms per cubic meter (µg/m3).
Compound concentrations are reported to the laboratory method detection limits.
Laboratory analytical method is shown in parentheses.
Only compounds detected in at least one sample are shown in the above table.
Bold values exceed the DWM Residential Vapor Intrusion SGSL.
Underlined values indicate an exceedance of DWM Non-Residential SGSL.
VOCs = volatile organic compounds; NE = not established
J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.
M = Laboratory manual integration.
Proposed Parking Deck
µg/m3
Screening Criteria
Residential
SGSLs (1)
Non-Residential
SGSLs (1)6/16/2022
Exterior Soil Gas
BF-SG-4/BF-SG-DUP
Proposed Residential Units
https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Trammell Crow Residential ‐ TCR/TCR‐003 Press Club Cleaners/Phase II ESA/Tables/Data Tables 20220727.xlsx
8/5/2022
Table 4 (Page 1 of 1)
Hart & Hickman, PC
H
A
R
T
F
O
R
D

A
V
E
N
U
E
EX
-
1
E
X
-
2
EX-3
E
X
-
4
COMP-2A
COMP-2B
COMP-2D
COMP-2C
EX
-
5
SO
U
T
H

B
O
U
L
E
V
A
R
D
RCBF-SB-01
RCBF-SB-02
RCBF-COMP-1
A
B
CD
B
A
C A
B
C
D
E
A
A
B
B
C
C
D
D
E
E
D
BF-SB-01
BF-SB-04
BF-SB-05
BF-SB-02
BF-SB-03
COMP-2E
REVISION NO. 0
JOB NO. TCR-003
DATE: 12-29-22
FIGURE NO. 3
FORMER PRESS CLUB CLEANERS
SOUTH BOULEVARD AND HARTFORD AVENUE
CHARLOTTE, NORTH CAROLINA
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
EXISTING BUILDING
FOOTPRINT
SAMPLE LOCATION MAP
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
PARCEL LINE
CATS LIGHT RAIL
EXISTING BUILDING FOOTPRINT
EVALUATION AREA
PROPOSED CONSTRUCTION
EASEMENT
APPROXIMATE CONTAINED-IN SOIL
MANAGEMENT AREA
ALIQUOT SOIL BORING LOCATION
SOIL BORING LOCATION
PROPOSED OFF-SITE ALIQUOT SOIL
BORING LOCATION
NOTES:
1.PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY
GIS, 2022.
2.CLIENT PROVIDED CUT/FILL HEAT MAP DATED 5/19/22.
3.FT BGS = FEET BELOW GROUND SURFACE.
4.YRD3 = CUBIC YARDS
5.DUE TO ACCESS ISSUES, SAMPLES RCBF-SB-01,
RCBF-SB-02, AND RCBF-COMP-1 WERE NOT COLLECTED
DURING NOVEMBER 2022 ASSESMENT ACTIVITIES.
SAMPLE ID BORING DEPTH
(FT BGS)
VOLUME OF SOIL
CHARACTERIZED PER
SAMPLE (YRD3)
EX-1 0-5 888
EX-2 0-2 385
EX-3 0-3 800
3-6 800
EX-4
0-2 495
2-4 495
4-6 495
6-8 495
EX-5
0-2 554
2-4 554
4-6 554
6-8 554
S:
\
A
A
A
-
M
a
s
t
e
r

P
r
o
j
e
c
t
s
\
T
r
a
m
m
e
l
l

C
r
o
w

R
e
s
i
d
e
n
t
i
a
l

-

T
C
R
\
T
C
R
-
0
0
3

P
r
e
s
s

C
l
u
b

C
l
e
a
n
e
r
s
\
B
r
o
w
n
f
i
e
l
d
s
\
E
M
P
\
F
i
g
u
r
e
s
\
T
C
R
-
0
0
3
_
S
O
I
L
_
2
0
2
2
1
0
2
0
_
r
e
c
o
v
e
r
.
d
w
g
,

F
I
G

3

O
L
D
,

1
2
/
2
9
/
2
0
2
2

3
:
1
3
:
2
1

P
M
,

s
p
e
r
r
y
Table 1
Summary of Dry Cleaner Release Delineation Soil Sample Analytical Results
Former Press Club Cleaners
Charlotte, North Carolina
Brownfields Project No. 25101-21-060
H&H Job No. TCR-003
Evaluation Area
Sample ID
Date
Depth (ft bgs)0-2 4-6 2-4 2-4 4-6 0-2 6-8 2-4 4-6 0-2 6-8
Sample Type
Units
VOCs (8260D)
Acetone NA NA NA NA NA NA NA NA NA NA NA 0.008 J <0.002 2.8 25 14,000 210,000
cis-1,2-Dichloroethene <0.001 <0.001 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.001 <0.0010 <0.001 <0.001 <0.001 0.35 0.41 31 470
trans-1,2-Dichloroethene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.54 0.62 15 64
Tetrachloroethene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.0074 0.0063 17 82
Trichloroethene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 0.018 0.021 0.87 4.0
Vinyl Chloride <0.0006 <0.0006 <0.0006 <0.0006 <0.0006 <0.0006 <0.0006 <0.0006 <0.0007 <0.0006 <0.0006 <0.0007 <0.0006 0.000095 0.00021 0.061 1.7
Notes:
1) North Carolina Department of Environmental Quality (DEQ) Division of Waste Management Hazardous Waste Section Contained-In Policy Unrestricted Use Levels (June 2016).
Concentrations are reported in milligrams per kilogram (mg/kg).
Concentrations are reported to the laboratory method detection limits.
Laboratory analytical methods are shown in parentheses.
VOCs = volatile organic compounds; ft bgs= feet below ground surface; NA = not analyzed
J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.
2) DEQ Preliminary Soil Remediation Goals (PSRGs) dated July 2022.
Dry Cleaner Release Delineation
EX-5A
11/29/2022
mg/kg
Screening Criteria
Unrestricted
Use Level (1)
11/28/2022
4-6 (DUP)
Protection of
Groundwater
PSRGs (2)
Grab
Industrial/
Commercial
PSRGs (2)
Residential
PSRGs (2)
11/28/2022 11/28/2022 11/28/2022 11/28/2022
BF-SB-01 BF-SB-02 / BF-SB-DUP BF-SB-03 BF-SB-04 BF-SB-05
Grab Grab Grab Grab Grab
https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Trammell Crow Residential ‐ TCR/TCR‐003 Press Club Cleaners/Brownfields/In Situ/Report/Data Tables_Press Club Cleaners
12/27/2022
Table 1 (Page 1 of 1)
Hart & Hickman, PC
Table 2
Summary of Shallow Soil Confirmation Soil Sample Analytical Results
Former Press Club Cleaners
Charlotte, North Carolina
Brownfields Project No. 25101-21-060
H&H Job No. TCR-003
Evaluation Area
Sample ID COMP-2A COMP-2B COMP-2C COMP-2D COMP-2E
Date 11/29/2022 11/29/2022 11/29/2022 11/29/2022 11/29/2022
Depth (ft bgs)0-2 0-2 0-2 0-2 0-2
Sample Type Grab Composite Grab Composite Grab Grab Grab Grab Grab Range
Units mg/L
VOCs (8260D)
2-Butanone (MEK) 0.0459 J NA 0.0401 J NA NA NA NA NA NA 5,500 40,000 -- --
Ethylbenzene 0.0043 J NA 0.0033 J NA NA NA NA NA NA
6.1 27 -- --
Naphthalene 0.0062 J NA 0.0048 J NA NA NA NA NA NA 2.1 9 -- --
Toluene 0.0085 NA 0.0070 NA NA NA NA NA NA 990 9,700 -- --
1,2,4-Trimethylbenzene <0.0021 NA 0.0037 J NA NA NA NA NA NA 63 370 -- --
m&p-Xylene 0.0116 J NA 0.0090 J NA NA NA NA NA NA 120 510 -- --
o-Xylene 0.0076 J NA 0.0068 NA NA NA NA NA NA 140 590 -- --
Xylene (Total) 0.0191 NA 0.0159 NA NA NA NA NA NA
120 530 -- --
SVOCs (8270E)
Acenaphthylene NA <1.270 NA <1.270 <0.117 <0.116 <0.126 <0.132 0.301 J NE NE -- --
Anthracene NA <1.180 NA 1.450 J <0.160 <0.158 <0.172 <0.179 1.68 3,600 45,000 -- --
Benzo(a)anthracene NA <1.200 NA 5.230 <0.156 0.359 J <0.167 <0.174 6.44 1.1 21 -- --
Benzo(a)pyrene NA <1.250 NA 3.910 <0.164 0.523 J <0.177 <0.184 6.32 0.11 2.1 -- --
Benzo(b)fluoranthene NA <1.200 NA 6.950 0.168 J 0.685 J <0.176 <0.183 8.65 1.1 21 -- --
Benzo(g,h,i)perylene NA <1.400 NA 2.560 J <0.152 0.356 J <0.164 <0.171 3.15 NE NE -- --
Benzo(k)fluoranthene NA <1.270 NA 3.020 J <0.153 0.183 J <0.165 <0.172 3.05 11 210 -- --
Chrysene NA <1.310 NA 7.120 <0.159 0.353 J <0.171 <0.178 5.67 110 2,100 -- --
Dibenz(a,h)anthracene NA <1.390 NA <1.390 <0.258 <0.255 <0.277 <0.289 0.361 J 0.11 2.1 -- --
Dibenzofuran NA <1.300 NA <1.310 <0.133 <0.132 <0.143 <0.149 0.178 J 16 230 -- --
Fluoranthene NA 1.730 J NA 14.300 <0.138 0.469 J <0.148 <0.154 12.4 480 6,000 -- --
Fluorene NA <1.270 NA <1.270 <0.143 <0.142 <0.154 <0.161 0.258 J 480 6,000 -- --
Indeno(1,2,3-cd)pyrene NA <1.420 NA 2.420 J <0.200 0.372 J <0.215 <0.225 3.80 1.1 21 -- --
Naphthalene NA <1.220 NA <1.230 <0.161 <0.159 <0.173 <0.181 0.176 J 2.1 8.8 -- --
Phenanthrene NA <1.180 NA 13.300 <0.233 <0.230 <0.250 <0.261 4.01 NE NE -- --
Phenol NA <1.610 NA <1.610 <0.125 <0.124 <0.135 <0.140 0.559 J 3,800 49,000 -- --
Pyrene NA <1.460 NA 10.000 <0.150 0.482 J <0.161 <0.168 11.1 360 4,500 -- --
Metals (6020B/7471B/7199)
Arsenic NA 2.7 NA 2.2 NA NA NA NA NA 0.68 3.0 1.0 - 18 --
Barium NA 75.3 NA 92.3 NA NA NA NA NA 3,100 47,000 50 - 1,000 --
Cadmium NA 1.7 NA 1.3 NA NA NA NA NA 1.4 20 1.0 - 10 --
Chromium (total)NA 38.3 NA 45.5 NA NA NA NA NA NE NE 7.0 - 300 --
Hexavalent Chromium NA 1.67 NA 0.941 J NA NA NA NA NA 0.31 6.5 NS --
Trivalent Chromium NA 36.63 NA 44.56 NA NA NA NA NA 23,000 350,000 NS --
Lead NA 405 NA 296 20.1 490 125 35.1 37.5 400 800 ND - 50 --
Mercury NA 0.070 NA 0.11 NA NA NA NA NA 2.3 9.7 0.03 - 0.52 --
Selenium NA 0.50 J NA 0.39 J NA NA NA NA NA 78 1,200 <0.1 - 0.8 --
Silver NA 0.40 J NA 0.33 J NA NA NA NA NA 78 1,200 ND - 5.0 --
TCLP (6010D)
Lead NA 0.49 mg/L NA 0.60 mg/L NA 0.166 mg/L 0.020 mg/L NA NA -- -- --5
Notes:
1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) dated July 2022.
2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005. Cd and Ag concentrations were taken from Southeastern & Conterminous US soils.
3) Environmental Protection Agency (EPA) Maximum Concentration of Contaminants for Toxicity Characteristic Leaching Procedure (TCLP) regulatory level dated November 2004.
Concentrations are reported in milligrams per kilogram (mg/kg) unless otherwise shown.
Aside from metals, only those compounds detected in at least one sample are shown in the table above.
Concentrations are reported to the laboratory method detection limits
Laboratory analytical methods are shown in parentheses.
Bold value indicates an exceedance of the Residential PSRG and background levels in the case of metals
Underlined value indicates an exceedance of the Industrial/Commercial PSRG and background levels in the case of metals.
VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; ft bgs= feet below ground surface; NS = not specified; -- = not applicable; ND = not detected; NA = not analyzed; mg/L = milligrams per liter
J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.
Screening CriteriaSoutheastern Shallow Soil
0-2
mg/kg
Residential
PSRGs (1)
COMP-2/COMP-DUP
6/15/2022 Industrial/
Commercial
PSRGs (1)
Regional
Background
Metals (2)
Maximum
Concentration
for TCLP (3)
https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Trammell Crow Residential ‐ TCR/TCR‐003 Press Club Cleaners/Brownfields/In Situ/Report/Data Tables_Press Club Cleaners
12/28/2022
Table 2 (Page 1 of 1)
Hart & Hickman, PC
Table 3
Summary of In Situ Soil Sample Analytical Results
Former Press Club Cleaners
Charlotte, North Carolina
Brownfields Project No. 25101-21-060
H&H Job No. TCR-003
Evaluation Area
Sample ID COMP-2C COMP-2D
Date 11/29/2022 11/29/2022
Depth (ft bgs)2-4 0-5 0-2 0-2 0-2 0-3 0-2 0-2
Sample Type Grab Composite Grab Composite Grab Composite Grab Grab Range
Units mg/L
VOCs (8260D)
Acetone 0.002 J NA 0.011 J NA 0.018 J NA NA NA 14,000 210,000 -- --
n-Hexane <0.0007 NA 0.001 J NA <0.0008 NA NA NA 160 740 -- --
SVOCs (8270E)-- -- -- --
Metals (6020B/7471B/7199)
Arsenic NA 0.593 J NA 15.4 NA 1.67 NA NA 0.68 3.0 1.0 - 18 --
Barium NA 62.5 NA 178 NA 51.9 NA NA 3,100 47,000 50 - 1,000 --
Cadmium NA <0.0728 NA 17.9 NA 0.183 J NA NA 1.4 20 1.0 - 10 --
Chromium (total)NA 7.43 NA 92.1 NA 53.7 NA NA NE NE 7.0 - 300 --
Hexavalent Chromium NA <0.160 NA <0.158 NA <0.168 NA NA 0.31 6.5 NS --
Trivalent Chromium NA 7.43 NA 92.1 NA 53.7 NA NA 23,000 350,000 NS --
Lead NA 1.54 NA 2,640 NA 49.3 125 35.1 400 800 ND - 50 --
Mercury NA <0.0133 NA 0.194 NA 0.0481 NA NA 2.3 9.7 0.03 - 0.52 --
Selenium NA <0.818 NA 1.48 J NA <0.884 NA NA 78 1,200 <0.1 - 0.8 --
Silver NA <0.0519 NA 4.62 NA 0.0638 J NA NA 78 1,200 ND - 5.0 --
TCLP (6010D)
Lead NA NA NA 0.060 mg/L NA NA 0.020 mg/L NA -- -- --5
Notes:
1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) dated July 2022.
2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005. Cd and Ag concentrations were taken from Southeastern & Conterminous US soils.
3) Environmental Protection Agency (EPA) Maximum Concentration of Contaminants for Toxicity Characteristic Leaching Procedure (TCLP) regulatory level dated November 2004.
Concentrations are reported in milligrams per kilogram (mg/kg) unless otherwise shown.
Aside from metals, only those compounds detected in at least one sample are shown in the table above.
Concentrations are reported to the laboratory method detection limits.
Laboratory analytical methods are shown in parentheses.
Bold value indicates an exceedance of the Residential PSRG and background levels in the case of metals.
Underlined value indicates an exceedance of the Industrial/Commercial PSRG and background levels in the case of metals.
VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; ft bgs= feet below ground surface; NS = not specified; -- = not applicable; ND = not detected; NA = not analyzed
BDL = below the laboratory detection limit; mg/L = milligrams per liter
J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.
Screening Criteria
EX-1
11/29/2022
EX-2
11/29/2022
EX-3
11/29/2022 Maximum
Concentration
for TCLP (3)
Regional
Background
Metals (2)Residential
PSRGs (1)
Industrial/
Commercial
PSRGs (1)
Proposed Area of Cut
All BDL
mg/kg
https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Trammell Crow Residential ‐ TCR/TCR‐003 Press Club Cleaners/Brownfields/In Situ/Report/Data Tables_Press Club Cleaners
12/28/2022
Table 3 (Page 1 of 3)
Hart & Hickman, PC
Table 3
Summary of In Situ Soil Sample Analytical Results
Former Press Club Cleaners
Charlotte, North Carolina
Brownfields Project No. 25101-21-060
H&H Job No. TCR-003
Evaluation Area
Sample ID
Date
Depth (ft bgs)4-6 3-6
Sample Type Grab Composite Grab Composite Grab Composite Grab Composite Grab Composite Grab Composite Range
Units mg/L
VOCs (8260D)
Acetone 0.021 J NA 0.006 J NA 0.003 J NA <0.003 NA <0.003 NA <0.003 NA 14,000 210,000 -- --
n-Hexane <0.0008 NA <0.0009 NA <0.0008 NA <0.0009 NA <0.0009 NA <0.0009 NA 160 740 -- --
SVOCs (8270E)-- -- -- --
Metals (6020B/7471B/7199)
Arsenic NA 2.96 NA 3.43 NA 1.87 NA 1.50 NA 1.06 J NA 0.967 J 0.68 3.0 1.0 - 18 --
Barium NA 79.8 NA 31.2 NA 20.8 NA 11.3 J NA 20.5 NA 19.7 3,100 47,000 50 - 1,000 --
Cadmium NA 0.450 J NA <0.0854 NA <0.0837 NA <0.0890 NA <0.0888 NA <0.0917 1.4 20 1.0 - 10 --
Chromium (total)NA 49.2 NA 42.6 NA 97.2 NA 61.5 NA 61.4 NA 97.5 NE NE 7.0 - 300 --
Hexavalent Chromium NA <0.171 NA <0.187 NA <0.184 NA 1.74 NA <0.189 NA <0.198 0.31 6.5 NS --
Trivalent Chromium NA 49.2 NA 42.6 NA 97.2 NA 59.8 NA 61.4 NA 97.5 23,000 350,000 NS --
Lead NA 142 NA 9.24 NA 8.27 NA 6.28 NA 7.99 NA 8.55 400 800 ND - 50 --
Mercury NA 0.0636 NA 0.140 NA 0.0994 NA <0.0162 NA <0.0162 NA <0.0167 2.3 9.7 0.03 - 0.52 --
Selenium NA <0.876 NA <0.959 NA <0.940 NA <1.00 NA <0.997 NA <1.03 78 1,200 <0.1 - 0.8 --
Silver NA 0.205 J NA <0.0608 NA <0.0596 NA <0.0634 NA <0.0632 NA <0.0653 78 1,200 ND - 5.0 --
TCLP (6010D)
Lead NA 0.074 mg/L NA NA NA NA NA NA NA NA NA NA -- -- --5
Notes:
1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) dated July 2022.
2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005. Cd and Ag concentrations were taken from Southeastern & Conterminous US soils.
3) Environmental Protection Agency (EPA) Maximum Concentration of Contaminants for Toxicity Characteristic Leaching Procedure (TCLP) regulatory level dated November 2004.
Concentrations are reported in milligrams per kilogram (mg/kg) unless otherwise shown.
Aside from metals, only those compounds detected in at least one sample are shown in the table above.
Concentrations are reported to the laboratory method detection limits.
Laboratory analytical methods are shown in parentheses.
Bold value indicates an exceedance of the Residential PSRG and background levels in the case of metals.
Underlined value indicates an exceedance of the Industrial/Commercial PSRG and background levels in the case of metals.
VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; ft bgs= feet below ground surface; NS = not specified; -- = not applicable; ND = not detected; NA = not analyzed
BDL = below the laboratory detection limit; mg/L = milligrams per liter
J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.
6-8 (DUP)4-6 6-8
EX-3
11/29/2022
EX-4
11/28/2022
0-2
Screening Criteria
Maximum
Concentration
for TCLP (3)
Industrial/
Commercial
PSRGs (1)
Proposed Area of Cut
EX-4 / EX-DUP
mg/kg
EX-4 EX-4
Residential
PSRGs (1)
11/28/2022 11/28/2022 11/28/2022
Regional
Background
Metals (2)2-4
11/28/2022
All BDL
https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Trammell Crow Residential ‐ TCR/TCR‐003 Press Club Cleaners/Brownfields/In Situ/Report/Data Tables_Press Club Cleaners
12/28/2022
Table 3 (Page 2 of 3)
Hart & Hickman, PC
Table 3
Summary of In Situ Soil Sample Analytical Results
Former Press Club Cleaners
Charlotte, North Carolina
Brownfields Project No. 25101-21-060
H&H Job No. TCR-003
Evaluation Area
Sample ID
Date
Depth (ft bgs)0-2 0-2 2-4 2-4 4-6 4-6 6-8 6-8
Sample Type Grab Composite Grab Composite Grab Composite Grab Composite Range
Units mg/L
VOCs ( 260D)
Acetone 0.018 J NA 0.005 J NA <0.003 NA <0.003 NA 14,000 210,000 -- --
n-Hexane <0.0009 NA <0.0009 NA <0.0009 NA <0.0009 NA 160 740 -- --
SVOCs (8270E)-- -- -- --
Metals (6020B/7471B/7199)
Arsenic NA 2.66 NA 1.05 J NA 2.00 NA 1.97 0.68 3.0 1.0 - 18 --
Barium NA 18.5 NA 89.8 NA 19.1 NA 41.3 3,100 47,000 50 - 1,000 --
Cadmium NA <0.0856 NA <0.0932 NA <0.0861 NA <0.0890 1.4 20 1.0 - 10 --
Chromium (total)NA 63.7 NA 37.9 NA 46.5 NA 60.3 NE NE 7.0 - 300 --
Hexavalent Chromium NA <0.188 NA <0.199 NA <0.184 NA <0.190 0.31 6.5 NS --
Trivalent Chromium NA 63.7 NA 37.9 NA 46.5 NA 60.3 23,000 350,000 NS --
Lead NA 8.73 NA 14.1 NA 9.01 NA 6.10 400 800 ND - 50 --
Mercury NA 0.0969 NA 0.0363 J NA 0.0504 NA <0.0162 2.3 9.7 0.03 - 0.52 --
Selenium NA 0.968 J NA <1.05 NA 1.48 J NA 1.27 J 78 1,200 <0.1 - 0.8 --
Silver NA <0.0609 NA <0.0663 NA <0.0613 NA <0.0634 78 1,200 ND - 5.0 --
TCLP (6010D)
Lead NA NA NA NA NA NA NA NA -- -- --5
Notes:
1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) dated July 2022.
2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005. Cd and Ag concentrations were taken from Southeastern & Conterminous US soils.
3) Environmental Protection Agency (EPA) Maximum Concentration of Contaminants for Toxicity Characteristic Leaching Procedure (TCLP) regulatory level dated November 2004.
Concentrations are reported in milligrams per kilogram (mg/kg) unless otherwise shown.
Aside from metals, only those compounds detected in at least one sample are shown in the table above.
Concentrations are reported to the laboratory method detection limits.
Laboratory analytical methods are shown in parentheses.
Bold value indicates an exceedance of the Residential PSRG and background levels in the case of metals.
Underlined value indicates an exceedance of the Industrial/Commercial PSRG and background levels in the case of metals.
VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; ft bgs= feet below ground surface; NS = not specified; -- = not applicable; ND = not detected; NA = not analyzed
BDL = below the laboratory detection limit; mg/L = milligrams per liter
J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.
Proposed Area of Cut
EX-5 EX-5 EX-5 EX-5
Residential
PSRGs (1)
Industrial/
Commercial
PSRGs (1)
Regional
Background
Metals (2)
mg/kg
Screening Criteria
Maximum
Concentration
for TCLP (3)
11/28/202211/28/2022 11/28/2022 11/28/2022
ALL BDL
https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Trammell Crow Residential ‐ TCR/TCR‐003 Press Club Cleaners/Brownfields/In Situ/Report/Data Tables_Press Club Cleaners
12/28/2022
Table 3 (Page 3 of 3)
Hart & Hickman, PC

Appendix B

Vapor Intrusion Mitigation Plan – Sheets VM-0 through VM-9

EL
V

1
EL
V

2
ELV 3 ELV 4
ST3
ST4
T/SLAB = 722.00
T/SLAB = 723.33
T/SLAB = 725.00
T/SLAB = 726.33
T/SLAB = 729.00
T/SLAB = 734.00
T/SLAB = 734.00
T/SLAB = 734.00
T/SLAB = 727.80
T/SLAB = 727.07
T/FND = 720.50
T/SLAB = 722.00
T/F
N
D

=

7
2
5
.
5
0
'
T/F
N
D

=

7
2
3
.
5
0
'
T/FND = 727.50
T/MAT = 730.00
T/MAT = 730.00
T/FND = 732.50
T/FND = 732.50
T/FND = 732.50
T/SLAB = 740.00
T/FND = 732.50T/SLAB = 741.66
T/SLAB = 741.35
PAVEMENT ONGRADE BY OTHERS,SEE CIVIL
T/FND = 732.50
T/SLAB = 740.35
UP
DN
UP
DN
DN
DN
DN
30" X48" HC 30" X48" HC
45
45
A1.5 -
LOFT
121
A1.5 -
LOFT120
A1.5119
CO
R
R
I
D
O
R
10
0
A
722
ELEC
127A
TRASH125B STAGING126
ST3
ST3.0
729.688
7.
6
6
%
7.
6
9
%
ELEV
LOBBY
124
ELV4
E4.0
7.
6
9
%
ME
C
H
14
4
B
729.688
A2+D118
TRASH/RECYCLE125A
ST4
ST4.1
JR3123
JR3
122
7.
6
9
%
OVERHANG ABOVE
BIKE
ROOM
121A
724.847
729.688
726.168
726.168
724.847
723.099
723.099
722.000
7.
6
6
%
E-2
E-3
IAS-1
IAS-2
E-1
MP-1
MP-2 MP-3
MP-4
MP-5
TMP-1
MP-5A
H&H NO. TCR-003
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
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 0
VM-0
PROFESSIONAL
APPROVAL
AL
E
X
A
N

L
O
S
O
33
0
5

S
O
U
T
H

B
O
U
L
E
V
A
R
D
CH
A
R
L
O
T
T
E
,

N
O
R
T
H

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

P
R
O
J
E
C
T

N
O
.

2
5
1
0
1
-
2
1
-
0
6
0
DATE: 02-21-23
REVISIONS
REV DATE DESCRIPTION
1 2/21/23 REV 1 - DEQ SUBMISSION
LEGEND
COLUMN AND FOOTING
OUTDOOR OR OPEN AIR SPACE
EXTENT OF VAPOR LINER
HORIZONTAL COLLECTION PIPING OR SOIL GAS COLLECTOR MAT
3" DIA SCH 40 SOLID PVC PIPE
3" DIA METAL VERTICAL RISER WITH EXHAUST IDENTIFICATION NUMBER
2" DIA SOLID PVC PRESSURE MONITORING POINT
PROPOSED INDOOR AIR SAMPLE LOCATION
MP-4
E-1
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-7, VM-8, AND VM-9.
2.STANDARD SLIP JOINT OR SOLVENT WELDED SCH 40 PVC FITTINGS SHALL BE
USED ON HORIZONTAL COLLECTION PIPE.
3.THE END OF EACH HORIZONTAL COLLECTION PIPE AND EACH MONITORING
POINT SHALL CONTAIN A PVC END CAP OR TERMINATION SCREEN PER
SPECIFICATIONS #3 & #7.
4.THE INTAKE OF THE MONITORING POINTS SHALL BE A MINIMUM 5 FT FROM
EXTERIOR WALLS, OR AS OTHERWISE APPROVED BY THE DESIGN ENGINEER.
5.TEMPORARY MONITORING POINT (TMP-1) MAY BE ABANDONED USING AN IN
AIR-TIGHT VAPOR MANUFACTURER APPROVED SEALANT AND CONCRETE
AFTER THE PILOT TEST AND PRIOR TO FINISHING ACTIVITIES PER APPROVAL
OF THE DESIGN ENGINEER AND NCDEQ.
LEVEL 1 - PARKING GARAGE
(SEE SHEET VM-1)
IAS-2
PROPOSED SUB-SLAB
SAMPLE LOCATION
PROPOSED SUB-SLAB
SAMPLE LOCATION
DEVELOPER:
MAPLE MULTI-FAMILY
LAND SE LP
4064 COLONY ROAD
SUITE 405
CHARLOTTE, NORTH CAROLINA
1
VM-7
2
VM-7
3
VM-7
4
VM-7
6
VM-7
8/9
VM-7
VM-7
7/9
10
VM-7
14/15
VM-8
18
VM-8
19
VM-8
16
VM-7
17
VM-8
21
VM-8
23
VM-8
20
VM-8
26
VM-8
25
VM-8
17
VM-8
VM-7
4
25
VM-8
TEMPORARY MONITORING POINT.
INSTALL 2-INCH PVC PIPE WITHOUT
FLOOR CLEAN-OUT.
PROPOSED SUB-SLAB
SAMPLE LOCATION
PROPOSED SUB-SLAB
SAMPLE LOCATION
BIKE ROOM
02/21/23
\\
h
a
r
t
h
i
c
k
.
s
h
a
r
e
p
o
i
n
t
.
c
o
m
@
S
S
L
\
D
a
v
W
W
W
R
o
o
t
\
s
i
t
e
s
\
M
a
s
t
e
r
F
i
l
e
s
-
1
\
S
h
a
r
e
d

D
o
c
u
m
e
n
t
s
\
A
A
A
-
M
a
s
t
e
r

P
r
o
j
e
c
t
s
\
T
r
a
m
m
e
l
l

C
r
o
w

R
e
s
i
d
e
n
t
i
a
l

-

T
C
R
\
T
C
R
-
0
0
3

P
r
e
s
s

C
l
u
b

C
l
e
a
n
e
r
s
\
V
I
M
P
\
F
i
g
u
r
e
s
\
T
C
R
-
0
0
3
_
V
I
M
S

D
e
s
i
g
n
_
R
1
.
d
w
g
UP
UP
UP
DN
UP
UP
UP
DN
DN
DN
DN
DN
6.6
7
%
12
.
6
4
%

U
P
FIRE
PUMP
ROOM154A
734
WATER
PUMP
ROOM101A
ELECTRICAL113A
TRASH109A
29
PARKING194 SPACES
16
30
26
26
29
A1.5 -
LOFT121
A1.5 -
LOFT
120
A1.5119
FDC
734
11
722
OPEN TO BELOW
OPEN TO BELOW
ST1ST1.1
ST2ST2.1
ST3ST3.1
ST4
ST4.1
ELV2E2.1
ELV1E1.1
ELV3
E3.1
ELV4
E4.1
ELEV
LOBBY145A
ELEV
LOBBY100D
ELEV
LOBBY112A
A2+D118
SHAFT
ABOVE
BOLLARDS
BOLLARDS
BOLLARD
EL
E
C
.

C
H
A
S
E
JR3-LOFT122A
JR3-LOFT
123A
WAYFINDING TO BIKE
STORAGE REQUIRED
734.500
735.000
733.151
EVEV
EV
27
TRUNCATED DOMES
E-2
E-3
E-4
E-7
E-1
MP-9
MP-8
MP-6A MP-6
E-6
E-5
MP-7
MP-6B
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
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 1
VM-1
PROFESSIONAL
APPROVAL
LEGEND
OUTDOOR OR OPEN AIR SPACE
EXTENT OF VAPOR LINER
3" DIA SCH 40 SOLID PVC PIPE
3" DIA METAL VERTICAL RISER WITH EXHAUST IDENTIFICATION NUMBER
2" DIA SOLID PVC PRESSURE MONITORING POINT
PROPOSED INDOOR AIR SAMPLE LOCATION
MP-6
E-5
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-7, VM-8, AND VM-9.
2.STANDARD SLIP JOINT OR SOLVENT WELDED SCH 40 PVC FITTINGS SHALL BE
USED ON HORIZONTAL COLLECTION PIPE.
3.THE END OF EACH HORIZONTAL COLLECTION PIPE AND EACH MONITORING
POINT SHALL CONTAIN A PVC END CAP OR TERMINATION SCREEN PER
SPECIFICATIONS #3 & #7.
4.THE INTAKE OF THE MONITORING POINTS SHALL BE A MINIMUM 5 FT FROM
EXTERIOR WALLS OR AS OTHERWISE APPROVED BY THE DESIGN ENGINEER.
IAS-2
H&H NO. TCR-003
AL
E
X
A
N

L
O
S
O
33
0
5

S
O
U
T
H

B
O
U
L
E
V
A
R
D
CH
A
R
L
O
T
T
E
,

N
O
R
T
H

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

P
R
O
J
E
C
T

N
O
.

2
5
1
0
1
-
2
1
-
0
6
0
DATE: 02-21-23
DEVELOPER:
MAPLE MULTI-FAMILY
LAND SE LP
4064 COLONY ROAD
SUITE 405
CHARLOTTE, NORTH CAROLINA
IAS-3
PROPOSED SUB-SLAB
SAMPLE LOCATION
PROPOSED SUB-SLAB
SAMPLE LOCATION
13
VM-7
22
VM-8
22
VM-8
12
VM-7
11
VM-7
22
VM-8
2
VM-7
22
VM-8
24
VM-8
1
VM-7
24
VM-8
24
VM-8
25
VM-8
SCH 40 PVC TEE WITH
TERMINATION SCREENS
SCH 40 PVC TEE WITH
TERMINATION SCREENS
24A
VM-8
12
VM-7
25
VM-8
25
VM-8
25
VM-8
IAS-4
ANY UTILITY OR CONDUIT THROUGH THE
CEILING OF THE WATER PUMP ROOM MUST
CONTAIN AN AIRTIGHT SEAL TO PREVENT
AIR TRANSFER FROM WATER PUMP ROOM
TO RESIDENTIAL LIVING SPACES. REFER
TO MECHANICAL & PLUMBING PLANS.
ANY UTILITY OR CONDUIT THROUGH THE
CEILING OF THE FIRE PUMP ROOM MUST
CONTAIN AN AIRTIGHT SEAL TO PREVENT
AIR TRANSFER FROM WATER PUMP ROOM
TO RESIDENTIAL LIVING SPACES. REFER
TO MECHANICAL & PLUMBING PLANS.
25
VM-8
25
VM-8
PROPOSED SUB-SLAB
SAMPLE LOCATION
PROPOSED SUB-SLAB
SAMPLE LOCATION
PROPOSED SUB-SLAB
SAMPLE LOCATION
REVISIONS
REV DATE DESCRIPTION
1 2/21/23 REV 1 - DEQ SUBMISSION
02/21/23
\\
h
a
r
t
h
i
c
k
.
s
h
a
r
e
p
o
i
n
t
.
c
o
m
@
S
S
L
\
D
a
v
W
W
W
R
o
o
t
\
s
i
t
e
s
\
M
a
s
t
e
r
F
i
l
e
s
-
1
\
S
h
a
r
e
d

D
o
c
u
m
e
n
t
s
\
A
A
A
-
M
a
s
t
e
r

P
r
o
j
e
c
t
s
\
T
r
a
m
m
e
l
l

C
r
o
w

R
e
s
i
d
e
n
t
i
a
l

-

T
C
R
\
T
C
R
-
0
0
3

P
r
e
s
s

C
l
u
b

C
l
e
a
n
e
r
s
\
V
I
M
P
\
F
i
g
u
r
e
s
\
T
C
R
-
0
0
3
_
V
I
M
S

D
e
s
i
g
n
_
R
1
.
d
w
g
DN
DN
DN
DN
UP
DN
DN
DN
UP
DN
9.3
8
%

R
A
M
P

D
N
12
.
6
4
%

R
A
M
P

D
N
6.6
7
%
II
TRASH
211A
TRASH
249
SERVICE202
28
21
25
8
2
21
PARKING122 SPACES
B7203
A1 + D
205
A1.2
207
A1.2209
A1.2
211
B1.3
251
A1.5259
B6260
A1.4228A1.4227
B1.1
230
A7+D250
ME
C
H
/
E
L
E
C
25
8
MAINTENANCE231
A1.4226A1.4224
B1.1223A1.3222A1.3221A1.3220
LO
A
D
I
N
G
ELEC
248A
RENTABLE
SPACE255
BIKE
STORAGE
229
6
11
9.
3
8
%
744
744
7.80%
ST4ST4.2
ST3ST3.2ST2
ST2.2
ST1
ST1.2
MAILROOM218
FIRE
COMMAND
ROOM213B
PARCEL
218A
LEASING
216
LOBBY
214
FITNESS213A
MECH
214A
ASST.
MANAGER
OFFICE216D
MANAGER
OFFICE216E
A/V216FLEASING
BREAK216C
ELV2E2.2
ELV1E1.2
ELV3
E3.2 ELV4E4.2
ELEV
LOBBY201D
ELEV
LOBBY234
CO
R
R
I
D
O
R
20
1
A
ELV
LOBBY
201B
CORRIDOR201C
7.80%7.
8
0
%
MECH/
ELEC223A
740.354
744.000
VESTIBULE212
A1.5257
A1.5253
POOL
CHEMICAL
ROOM225B
SHAFT
ABOVE
MDF
248B
BOH248C
BOLLARDS
BOLLARDS
ELEC215BRR215A
ELE
C
.

C
H
A
S
E
1/
8
"

/

1
2
"
5
5
5
5
5
554
BIKE REPAIR
POOL
PUMP
ROOM225A 55
55
5
E-2
E-3
E-4
E-1
E-7
E-4 E-5
E-6
E-7
E-1
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
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 2
VM-2
PROFESSIONAL
APPROVAL
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-7, VM-8, AND VM-9.
2.ABOVE-SLAB METAL PIPES SHALL BE CONNECTED USED AIR-TIGHT FITTINGS
PER SPECIFICATION #4 ON SHEET VM-9.
3.HORIZONTAL SECTIONS OF PIPE SHALL BE SLOPED 1/8" PER FOOT TO DRAIN
TOWARDS THE SLAB PENETRATION..H&H NO. TCR-003
AL
E
X
A
N

L
O
S
O
33
0
5

S
O
U
T
H

B
O
U
L
E
V
A
R
D
CH
A
R
L
O
T
T
E
,

N
O
R
T
H

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

P
R
O
J
E
C
T

N
O
.

2
5
1
0
1
-
2
1
-
0
6
0
DATE: 02-21-23
DEVELOPER:
MAPLE MULTI-FAMILY
LAND SE LP
4064 COLONY ROAD
SUITE 405
CHARLOTTE, NORTH CAROLINA
LEGEND
3" DIA METAL VERTICAL RISER - PRIOR LEVEL LOCATION
SOLID METAL RISER PIPE - PRIOR LEVEL CEILING
3" DIA METAL VERTICAL RISER - CURRENT LEVEL LOCATION
E-1
E-1
27
VM-8
27
VM-8
27
VM-8
REVISIONS
REV DATE DESCRIPTION
1 2/21/23 REV 1 - DEQ SUBMISSION
02/21/23
\\
h
a
r
t
h
i
c
k
.
s
h
a
r
e
p
o
i
n
t
.
c
o
m
@
S
S
L
\
D
a
v
W
W
W
R
o
o
t
\
s
i
t
e
s
\
M
a
s
t
e
r
F
i
l
e
s
-
1
\
S
h
a
r
e
d

D
o
c
u
m
e
n
t
s
\
A
A
A
-
M
a
s
t
e
r

P
r
o
j
e
c
t
s
\
T
r
a
m
m
e
l
l

C
r
o
w

R
e
s
i
d
e
n
t
i
a
l

-

T
C
R
\
T
C
R
-
0
0
3

P
r
e
s
s

C
l
u
b

C
l
e
a
n
e
r
s
\
V
I
M
P
\
F
i
g
u
r
e
s
\
T
C
R
-
0
0
3
_
V
I
M
S

D
e
s
i
g
n
_
R
1
.
d
w
g
UP
DN
UP
UP DN
DN
UP
AMENITY
317
B7303
A1 + D
305
A1.2307
A1.2
309
A1.2311
A1.1308
A1.1306
JR1.1
304
B3.1
302
B1.2316
B1.1 -
TYPE A
318 A1.1320 A1.1321
S2 - TYPE
A326
A1.1328
S1.2330
JR1.1331
B3.1
332
JR1.1333 JR1.1335
A1.1 -
TYPE A336 A1.1
343
JR1.2345
B3.3350
JR1.1
353
JR1.1
356
S1.1357
JR1.1359
B3.2360
B2.3
362
B1.1355
A5346A2
337
A1.1 -
TYPE A327
B2.1323
A4315
A1.1322
JR1.1
354
JR1.1351
A1.1
342
A1.1
344
A1.1
340
TRASH349
S2310
A3348
A6+D
329
A1.1
338
B1.1339 B1.1341
A1.1361
PHASE 2
MECH/
ELEC347
RESTROOM319C
PHASE 3
IDF352A
TRASH310A
ST4
ST4.3
ST3ST3.3ST2ST2.3
ST1ST1.3
CORRIDOR
301C
ELEV
LOBBY
301B
POOL
LOUNGE
325
MECH334
CONF
ROOM314A
FITNESS313
ELV2
E2.3
ELV1E1.3
ELV3E3.3
ELV4
E4.3
CO
R
R
I
D
O
R
30
1
G
CORRIDOR301E
ELEV
LOBBY
301D
CO
R
R
I
D
O
R
30
1
A
ELEV
LOBBY
301F
CORRIDOR301G
S1.2358
BOH303A
MECH
352B
MECH
324
ELEC319BELEC312
BOH361ARR
363
RESTROOM
319A
MEETING
ROOM314D
ZOOM
ROOM314C
ZOOM
ROOM314B
ME
C
H
30
8
B
MEP319D
MEP
325B
E-2
E-3
E-5
E-6
E-2
E-5
E-6
E-4
E-1
E-7
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
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 3
VM-3
PROFESSIONAL
APPROVAL
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-7, VM-8, AND VM-9.
2.ABOVE-SLAB METAL PIPES SHALL BE CONNECTED USED AIR-TIGHT FITTINGS
PER SPECIFICATION #4 ON SHEET VM-9.
3.HORIZONTAL SECTIONS OF PIPE SHALL BE SLOPED 1/8" PER FOOT TO DRAIN
TOWARDS THE SLAB PENETRATION..H&H NO. TCR-003
AL
E
X
A
N

L
O
S
O
33
0
5

S
O
U
T
H

B
O
U
L
E
V
A
R
D
CH
A
R
L
O
T
T
E
,

N
O
R
T
H

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

P
R
O
J
E
C
T

N
O
.

2
5
1
0
1
-
2
1
-
0
6
0
DATE: 02-21-23
DEVELOPER:
MAPLE MULTI-FAMILY
LAND SE LP
4064 COLONY ROAD
SUITE 405
CHARLOTTE, NORTH CAROLINA
LEGEND
3" DIA METAL VERTICAL RISER - PRIOR LEVEL LOCATION
SOLID METAL RISER PIPE - PRIOR LEVEL CEILING
3" DIA METAL VERTICAL RISER - CURRENT LEVEL LOCATION
E-1
E-3
27
VM-8
27
VM-8
27
VM-8
REVISIONS
REV DATE DESCRIPTION
1 2/21/23 REV 1 - DEQ SUBMISSION
02/21/23
\\
h
a
r
t
h
i
c
k
.
s
h
a
r
e
p
o
i
n
t
.
c
o
m
@
S
S
L
\
D
a
v
W
W
W
R
o
o
t
\
s
i
t
e
s
\
M
a
s
t
e
r
F
i
l
e
s
-
1
\
S
h
a
r
e
d

D
o
c
u
m
e
n
t
s
\
A
A
A
-
M
a
s
t
e
r

P
r
o
j
e
c
t
s
\
T
r
a
m
m
e
l
l

C
r
o
w

R
e
s
i
d
e
n
t
i
a
l

-

T
C
R
\
T
C
R
-
0
0
3

P
r
e
s
s

C
l
u
b

C
l
e
a
n
e
r
s
\
V
I
M
P
\
F
i
g
u
r
e
s
\
T
C
R
-
0
0
3
_
V
I
M
S

D
e
s
i
g
n
_
R
1
.
d
w
g
UP
DN UP
DN
DN
UP
B4403
A1.2
405
A1.2
407
A1.2
409
A1.2411
A1.1408
A1.1406
JR1.1404
B3.1402
B1.2
416
B1.1 -
TYPE A
418
A1.1
420
A1.1
421
S2426
A1.1428
A1.1
430
JR1.1431
B3.1432
JR1.1
433
JR1.1
435 A1.1 -
TYPE A437
A1.1
443
B3.3
450
JR1.1
453
JR1.1456
S1.1
457
JR1.1459
B3.2460A1.1461
B1.1455
A6+D429
A5446
A2436
A1.1
427
B2.1423
A4415
A1.1
422
A1.8458
JR1.1
454
JR1.1451
A1.1444
ELEC448
A1.1442A1.1438
B1.1417 A4419
B5
414
S2
410
B2.3462
TRASH449
TRASH410A
A1.1425
A3+D447
A1.1440
B1.1
439
B1.1
441
PHASE 2 PHASE 3
JR1.2
445
MECH424
IDF452A
ST1ST1.4 ST2
ST2.4 ST3ST3.4
ST4
ST4.4
CORRIDOR401C
MECH
434
ELV2E2.4
ELV1E1.4
ELV3E3.4
ELV4E4.4
ELEV
LOBBY401B
ELEV
LOBBY
401D
CORRIDOR
401E
ELEV
LOBBY401F
CO
R
R
I
D
O
R
40
1
G
CO
R
R
I
D
O
R
40
1
A
STORAGE424B
MECH
452B
ELEC /
SERVICE412
B4413
ELEC /
STORAGE419B
ME
C
H
40
8
B
E-3
E-2
E-4
E-1
E-7
E-5
E-6
DN
UP
DN UP
DN
B4503
A1.2505
A1.2507
A1.2509
A1.2
511
A1.1
508
A1.1
506
JR1.1504
B3.1
502
B1.2516
B1.1 -
TYPE A518 A1.1520 A1.1521
S2526
A1.1528
A1.1
530
JR1.1531
B3.1532 JR1.1
533
JR1.1
535 A1.1 -
TYPE A536
A1.1
543
B3.3550
JR1.1
553
JR1.1556
S1.1557
JR1.1559
B3.2560
A1.8
558
B1.1555
A6+D529
A5546A2537
A1.1
527
B2.1523
A4515
A1.1522
JR1.1
554
JR1.1551
A1.1544
A1.1
540
A1.1
542
B1.1517
B5514
S2
510
B2.3562
TRASH
510A
TRASH549
A1.1
525
A4519
A3+D548
A1.1538
B1.1
539
B1.1
541
A1.1561
PHASE 2 PHASE 3
JR1.2
545
MECH524
ELEC
547
IDF552A
ST1ST1.5 ST2ST2.5 ST3ST3.5
ST4ST4.5
MECH534
ELV2
E2.5
ELV1E1.5
ELV3E3.5
ELV4
E4.5
CO
R
R
I
D
O
R
50
1
A
ELEV
LOBBY501B
CORRIDOR501C
ELEV
LOBBY501D
CORRIDOR501E
ELEV
LOBBY501F
CO
R
R
I
D
O
R
50
1
G
STORAGE524B
MECH552B
ELEC519B
ME
C
H
50
8
B
ELEC512
B4513
E-3
E-2
E-4
E-1
E-7
E-5
E-6
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
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVELS 4 AND 5
VM-4
PROFESSIONAL
APPROVAL
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-7, VM-8, AND VM-9.
2.ABOVE-SLAB METAL PIPES SHALL BE CONNECTED USED AIR-TIGHT FITTINGS
PER SPECIFICATION #4 ON SHEET VM-9.
3.HORIZONTAL SECTIONS OF PIPE SHALL BE SLOPED 1/8" PER FOOT TO DRAIN
TOWARDS THE SLAB PENETRATION.
H&H NO. TCR-003
AL
E
X
A
N

L
O
S
O
33
0
5

S
O
U
T
H

B
O
U
L
E
V
A
R
D
CH
A
R
L
O
T
T
E
,

N
O
R
T
H

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

P
R
O
J
E
C
T

N
O
.

2
5
1
0
1
-
2
1
-
0
6
0
DATE: 02-21-23
DEVELOPER:
MAPLE MULTI-FAMILY
LAND SE LP
4064 COLONY ROAD
SUITE 405
CHARLOTTE, NORTH CAROLINA
LEGEND
3" DIA METAL VERTICAL RISERE-1
LEVEL 4
LEVEL 5
REVISIONS
REV DATE DESCRIPTION
1 2/21/23 REV 1 - DEQ SUBMISSION
02/21/23
\\
h
a
r
t
h
i
c
k
.
s
h
a
r
e
p
o
i
n
t
.
c
o
m
@
S
S
L
\
D
a
v
W
W
W
R
o
o
t
\
s
i
t
e
s
\
M
a
s
t
e
r
F
i
l
e
s
-
1
\
S
h
a
r
e
d

D
o
c
u
m
e
n
t
s
\
A
A
A
-
M
a
s
t
e
r

P
r
o
j
e
c
t
s
\
T
r
a
m
m
e
l
l

C
r
o
w

R
e
s
i
d
e
n
t
i
a
l

-

T
C
R
\
T
C
R
-
0
0
3

P
r
e
s
s

C
l
u
b

C
l
e
a
n
e
r
s
\
V
I
M
P
\
F
i
g
u
r
e
s
\
T
C
R
-
0
0
3
_
V
I
M
S

D
e
s
i
g
n
_
R
1
.
d
w
g
DN UP DNUP
DN
UP
TOD-UC TOD-NC
B4
602
A1.2605
A1.2
607
A1.2609
A1.2611
A1.1
608
A1.1606
JR1.1604
B3.1603
B5
614
B1.2616
B1.1 -
TYPE A618 A1.1620 A1.1621
S2626
A1.1628
A1.1630
S2610
B3.1
632
JR1.1633 JR1.1635
A1.1 -
TYPE A636
A1.1643
S1.3646
A1.1
644
A6+D629
A1.1
640
A2
637
A1.1627
A1.1
642
A4619B1.1617A4615
B2.1623A1.1622
JR1.1631
TRASH649
TRASH610A
A1.1625
A1.1
638
B1.1639 B1.1641
A6648
PHASE 2 PHASE 3
JR1.2645 A3.2+D647
MECH
624
ST1ST1.6 ST2ST2.6 ST3ST3.6
MECH
634
ELV2E2.6
ELV1E1.6
ELV3E3.6
ELV4
E4.6
CO
R
R
I
D
O
R
60
1
A
ELEV
LOBBY
601B
CORRIDOR601C
ELEV
LOBBY601D
CORRIDOR
601E
ELEV
LOBBY601F
STORAGE624B
ME
C
H
60
8
B
SERVICE612
MECH644B
IDF648B
B4613
STORAGE619C
1/
4
"

P
E
R

F
T
SL
O
P
E
S
L
O
P
E
1/4" PER FT
SLOPE
1/4
"

P
E
R

F
T
SL
O
P
E
SL
O
P
E
SLO
P
E
SL
O
P
E
SLO
P
E
SL
O
P
E
E-3
E-2
E-4
E-1
E-7
E-5
E-6
DN UP DNUP
DN
UP
B4703
A1.2
705
A1.2
707
A1.2
709
A1.2711
A1.1708
A1.1
706
JR1.1704
B3.1
702
B5
714 B1.2716
B1.1 -
TYPE A718 A1.1720
A1.1
721
S2
726
A1.1728
A1.1730
JR1.1731
B3.1
732
JR1.1
733
JR1.1
735 A1.1 -
TYPE A
736
B1.1
739
B1.1
741
A1.1
743
S1.2746
A1.1744
A1.1725
A1.1740A2737
A1.1
727
A1.1742
B1.1
717
A4
719
A4
715
S2
710
TRASH
710A
TRASH
749
A6+D729
A1.1738
B2.2723
A6748
PHASE 2 PHASE 3
JR1.2
745
S1.2
722
MECH724
ST1ST1.7 ST2ST2.7 ST3
ST3.7
MECH
734
CORRIDOR701C
ELV2E2.7
ELV1E1.7
ELV3
E3.7
ELV4
E4.7
CO
R
R
I
D
O
R
70
1
A
ELEV
LOBBY701B
ELEV
LOBBY701D
CORRIDOR701E
ELEV
LOBBY701F
STORAGE724B
ELEC719B
ME
C
H
70
8
B
ELEC712
MECH
744B
ELEC748B
A3.2+D
747
B4.2713
E-4
E-1
E-7
E-5
E-6
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
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVELS 6 AND 7
VM-5
PROFESSIONAL
APPROVAL
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-7, VM-8, AND VM-9.
2.ABOVE-SLAB METAL PIPES SHALL BE CONNECTED USED AIR-TIGHT FITTINGS
PER SPECIFICATION #4 ON SHEET VM-9.
3.SEE SPECIFICATION #5 FOR EXHAUST DISCHARGE REQUIREMENTS.
H&H NO. TCR-003
AL
E
X
A
N

L
O
S
O
33
0
5

S
O
U
T
H

B
O
U
L
E
V
A
R
D
CH
A
R
L
O
T
T
E
,

N
O
R
T
H

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

P
R
O
J
E
C
T

N
O
.

2
5
1
0
1
-
2
1
-
0
6
0
DATE: 02-21-23
DEVELOPER:
MAPLE MULTI-FAMILY
LAND SE LP
4064 COLONY ROAD
SUITE 405
CHARLOTTE, NORTH CAROLINA
LEGEND
3" DIA METAL VERTICAL RISERE-1
LEVEL 7
LEVEL 6
28
VM-8
28
VM-8
REVISIONS
REV DATE DESCRIPTION
1 2/21/23 REV 1 - DEQ SUBMISSION
02/21/23
\\
h
a
r
t
h
i
c
k
.
s
h
a
r
e
p
o
i
n
t
.
c
o
m
@
S
S
L
\
D
a
v
W
W
W
R
o
o
t
\
s
i
t
e
s
\
M
a
s
t
e
r
F
i
l
e
s
-
1
\
S
h
a
r
e
d

D
o
c
u
m
e
n
t
s
\
A
A
A
-
M
a
s
t
e
r

P
r
o
j
e
c
t
s
\
T
r
a
m
m
e
l
l

C
r
o
w

R
e
s
i
d
e
n
t
i
a
l

-

T
C
R
\
T
C
R
-
0
0
3

P
r
e
s
s

C
l
u
b

C
l
e
a
n
e
r
s
\
V
I
M
P
\
F
i
g
u
r
e
s
\
T
C
R
-
0
0
3
_
V
I
M
S

D
e
s
i
g
n
_
R
1
.
d
w
g
DN
DN
DN
BILLIARDS
UP
B3.1832
A1.2805
A1.2807
A1.2809
A1.2811
A1.1806
A1.1808
JR1.1804
B3.1
802
B5
814 B1.2816
B1.1 -
TYPE A
818
A1.1
820
A1.1
821
A1.1828
A1.1
830
S2810
B4
803
A1.1827
JR1.1831
SKY
LOUNGE
817
A4815
A1.1
825
A4819
TRASH810A
JR1.1833 JR1.1835 A1.1 -
TYPE A836
A1.1843
S1.2846
A1.1
844
A1.1
840
A2
837
A1.1
842
A1.1
838
A6+D
829
B1.1839 B1.1841
B2.2
823
TRASH
849
PHASE 2 PHASE 3
JR1.2845
A3.2+D
847
MECH824
ST1ST1.8 ST2ST2.8 ST3ST3.8
MECH834
ELV2
E2.8
ELV1E1.8
ELV3E3.8 ELV4E4.8
CO
R
R
I
D
O
R
80
1
A
ELEV
LOBBY
801B CORRIDOR801C
ELEV
LOBBY
801D
CORRIDOR801E
ELEV
LOBBY
801F
BOH824B
ME
C
H
80
8
B
SERVICE
812
MECH844B
A6
848
S2826
B4813
S1.3
822
5.
5
8
%
STORAGE819D
IDF848B
MECH817A
RR
817B
RR
817C
E-4
E-1
E-7
E-5
E-6
E-4
E-1
E-7
E-5
E-6
E-7
E-3
E-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
VAPOR INTRUSION
MITIGATION SYSTEM
PLAN VIEW LAYOUT
LEVEL 8 AND ROOF
VM-6
PROFESSIONAL
APPROVAL
02/21/23
NOTES:
1.REFER TO DETAILS AND SPECIFICATIONS ON SHEETS VM-7, VM-8, AND VM-9.
2.ABOVE-SLAB METAL PIPES SHALL BE CONNECTED USED AIR-TIGHT FITTINGS
PER SPECIFICATION #4 ON SHEET VM-9.
3.SEE SPECIFICATION #5 FOR EXHAUST DISCHARGE REQUIREMENTS.
LEVEL 6 ROOF (SEE SHEET VM-5)
H&H NO. TCR-003
AL
E
X
A
N

L
O
S
O
33
0
5

S
O
U
T
H

B
O
U
L
E
V
A
R
D
CH
A
R
L
O
T
T
E
,

N
O
R
T
H

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

P
R
O
J
E
C
T

N
O
.

2
5
1
0
1
-
2
1
-
0
6
0
DATE: 02-21-23
DEVELOPER:
MAPLE MULTI-FAMILY
LAND SE LP
4064 COLONY ROAD
SUITE 405
CHARLOTTE, NORTH CAROLINA
LEGEND
4" DIA METAL VERTICAL RISERE-1
LEVEL 8
ROOF
SHIFT RISER TO AVOID
WALKWAY IF NECESSARY
28
VM-8
28
VM-8
SHIFT RISER TO AVOID
WALKWAY IF NECESSARY
REVISIONS
REV DATE DESCRIPTION
1 2/21/23 REV 1 - DEQ SUBMISSION
\\
h
a
r
t
h
i
c
k
.
s
h
a
r
e
p
o
i
n
t
.
c
o
m
@
S
S
L
\
D
a
v
W
W
W
R
o
o
t
\
s
i
t
e
s
\
M
a
s
t
e
r
F
i
l
e
s
-
1
\
S
h
a
r
e
d

D
o
c
u
m
e
n
t
s
\
A
A
A
-
M
a
s
t
e
r

P
r
o
j
e
c
t
s
\
T
r
a
m
m
e
l
l

C
r
o
w

R
e
s
i
d
e
n
t
i
a
l

-

T
C
R
\
T
C
R
-
0
0
3

P
r
e
s
s

C
l
u
b

C
l
e
a
n
e
r
s
\
V
I
M
P
\
F
i
g
u
r
e
s
\
T
C
R
-
0
0
3
_
V
I
M
S

D
e
s
i
g
n
_
R
1
.
d
w
g
VAPOR BARRIER AND BASE COURSE (TYP)1
BASE COURSE - CLEAN #57 STONE
MIN 4" THICK BENEATH VAPOR BARRIER
(SEE SPECIFICATION #2)
VAPOR BARRIER (SEE SPECIFICATION #2)
CONCRETE FLOOR SLAB
SUB-BASE
NTSVM-7
3" SCH 40 SLIPE JOINT SLOTTED PVC
PIPE SET WITHIN MIN 4" BASE COURSE
(SEE SPECIFICATION #3)
VAPOR BARRIER (SEE SPECIFICATION #2)
SUB-BASE
CONCRETE FLOOR SLAB
SLOTTED COLLECTION PIPE (TYP)2
NTSVM-7
PVC TERMINATION SCREEN
(SEE SPECIFICATION #7)
VIMS PIPING THROUGH THICKENED FOOTING
NTS
3
VM-7
BASE COURSE
SUB-BASE
SOLID 3"
SCH 40 PVC
VAPOR BARRIER SEALED TO PIPE
PER MANUFACTURER INSTRUCTIONS
PROVIDE PIPE SUPPORT TO PREVENT
LOW POINT IN SOLID PIPE. MAINTAIN 1%
SLOPE TOWARD SLOTTED SECTION OF
PIPE (SEE SPECIFICATION #2)
VAPOR BARRIER
SOLID TO SLOTTED 3" SCH 40
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT)
WALL (VARIES)
PIPE SLEEVE (SEE
SPECIFICATION #11)
VIMS PIPING THROUGH SLAB STEP (TYP)
NTS
4
VM-7
SUB-BASE
CONCRETE FLOOR SLAB
VAPOR BARRIER
BASE COURSE
SOLID TO SLOTTED 3" SCH 40
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT)
3" SCH 40 PVC
45-DEGREE ELBOW
VAPOR BARRIER SEALED TO
PIPE PER MANUFACTURER
INSTRUCTIONS
SOLID 3" SCH 40 PVCPIPE SLEEVE
(SEE SPECIFICATION #12)
WALL (VARIES)
VIMS AT SLAB THICKENING WITH PIPE (TYP)
NTS
5
VM-7
BASE COURSE
WALL (VARIES)
SUBBASE
VAPOR BARRIER
3" SCH 40 PVC
45-DEGREE ELBOW
3" SCH 40 SLOTTED PVC PIPE
VIMS PIPING THROUGH INTERIOR RAMPS
NTS
6
VM-7
SLOPE
SUBBASE
VAPOR BARRIER
3" SCH 40 SLOTTED PVC PIPE
BASE COURSE
SOLID TO SLOTTED 3" SCH 40
PVC PIPE TRANSITION (SLIP
COUPLING OR THREADED JOINT)
VAPOR BARRIER SEALED TO
PIPE PER MANUFACTURER
INSTRUCTIONS
PIPE SLEEVE
(SEE SPECIFICATION #12)
VIMS AT INTERIOR COLUMN
NTS
7
VM-7
SUB-BASE
CONCRETE FLOOR SLAB
BASE COURSE
VAPOR BARRIER
CONCRETE COLUMN
CONCRETE FOOTING
VAPOR BARRIER SEALED OUTSIDE
OF CONCRETE COLUMN PER
MANUFACTURER INSTRUCTIONS
SEE DETAIL 9/VM-7
VIMS AT PERIMETER COLUMN
NTS
8
VM-7
SUB-BASE
CONCRETE
FLOOR SLAB
BASE COURSE
VAPOR BARRIER
CONCRETE COLUMN
TERMINATE VAPOR BARRIER
AT SOIL GRADE, WHERE
APPLICABLE
SEE DETAIL 9/VM-7
VAPOR BARRIER SEALED
TO CONCRETE ON EACH
SIDE OF COLUMN
VIMS AT COLUMNS - EXPANSION DETAIL
NTS
9
VM-7
CONCRETE COLUMN
CONCRETE FLOOR SLAB
VAPOR BARRIER SEALED TO CONCRETE
PER MANUFACTURERS INSTRUCTIONS
COLUMN EXPANSION FORM
(INSTALLED OVER VAPOR BARRIER)
VAPOR BARRIER
VIMS AT VERTICAL RISERS WITH 90 DEGREE ELBOW (TYP)
NTS
10
VM-7
BASE COURSE
SUB-BASE
WALL (VARIES)
SLOTTED 3" SCH 40 PVC VAPOR BARRIER SEALED TO PIPE
PER MANUFACTURER INSTRUCTIONS
VAPOR BARRIER
SUPPORT PIPE PER NC CODE
3" DIA METAL RISER DUCT PIPE
(SEE SPECIFICATION #4, #5 & #6)
AIR-TIGHT 3" DIA PVC TO METAL
TRANSITION COUPLING
VIMS PIPING THROUGH THICKENED FOOTING (RISER E-5 LOCATION)
NTS
11
VM-7
BASE COURSE
SUB-BASE
WALL (VARIES)
3" DIA METAL RISER DUCT PIPE
(SEE SPECIFICATION #4, #5 & #6)
3" SCH 40 PVC 90
DEGREE ELBOW
PIPE SLEEVE
VAPOR BARRIER
VAPOR BARRIER SEALED TO PIPE
PER MANUFACTURER
INSTRUCTIONSPROVIDE PIPE SUPPORT TO PREVENT
LOW POINT IN SOLID PIPE. MAINTAIN 1%
SLOPE TOWARD OPEN SECTION OF
PIPE (SEE SPECIFICATION #4)
AIR-TIGHT 3" DIA PVC TO METAL
TRANSITION COUPLING
SUPPORT PIPE PER NC CODE
SLOPE
ENCLOSED SPACE
OPEN-AIR SPACE
VIMS AT SLAB ON GRADE WITH TEE (TYP)
NTS
12
VM-7
BASE COURSE
SUB-BASE
VAPOR BARRIER
WALL (IF PRESENT)
3" SCH 40 PVC TEE
AIR-TIGHT 3" DIA PVC TO METAL
TRANSITION COUPLING
SUPPORT PIPE AS NECESSARY
3" DIA METAL RISER DUCT PIPE
(SEE SPECIFICATION #4, #5 & #6)
VAPOR BARRIER SEALED TO PIPE
PER MANUFACTURER INSTRUCTIONSPVC TERMINATION SCREEN
VIMS AT VERTICAL RISERS WITH TEE (RISER E-4 LOCATION)
NTS
13
VM-7
BASE COURSE
SUB-BASE
3" DIA METAL RISER DUCT PIPE
(SEE SPECIFICATION #4, #5 & #6)WALL (VARIES)
SOLID 3" SCH 40 PVC
VAPOR BARRIER
AIR-TIGHT 3" DIA PVC TO METAL
TRANSITION COUPLING SUPPORT PIPE PER NC CODE
TERMINATE VAPOR
BARRIER APPROX. 1 FT
FROM MITIGATED SPACE
VAPOR BARRIER SEALED TO PIPE
PER MANUFACTURER INSTRUCTIONS
SLOPE
SLOTTED 3" SCH 40 PVC
MOISTURE BARRIER, IF
WARRANTED, BY OTHERS
VAPOR BARRIER (SEE SPECIFICATION #2)
SUB-BASE
CONCRETE FLOOR SLAB
SOIL GAS COLLECTOR MAT - OPTION2A
NTSVM-7
SOIL GAS COLLECTOR MAT
TERMINATION AS SPECIFIED
BY MANUFACTURER
SOIL GAS COLLECTOR MAT SET
WITHIN MIN 4" BASE COURSE
VIMS PIPING THROUGH THICKENED SLAB (SOIL GAS COLLECTOR MAT OPTION)
NTS
3A
VM-7
CONCRETE
FLOOR SLAB
BASE COURSE
SUB-BASE
SOLID 3"
SCH 40 PVC
VAPOR BARRIER SEALED TO PIPE
PER MANUFACTURER
INSTRUCTIONS
PROVIDE PIPE SUPPORT TO PREVENT
LOW POINT IN SOLID PIPE. MAINTAIN 1%
SLOPE TOWARD SLOTTED SECTION OF
PIPE (SEE SPECIFICATION #2)
VAPOR
BARRIER
VAPOR BARRIER
BENEATH FOOTER
WALL (VARIES)
PIPE SLEEVE
(SEE SPECIFICATION #12)
SOIL GAS
COLLECTOR MAT
MANUFACTURER SPECIFIED
FITTING TO 3" SCH 40 PVC
SOIL GAS COLLECTOR MAT IS NOT PERMITTED
TO BE INSTALLED THROUGH CONCRETE
FOOTERS OR THICKENED SLABS
VIMS PIPING THROUGH SLAB STEP (SOIL GAS COLLECTOR MAT OPTION)
NTS
4A
VM-7
SUB-BASE
VAPOR BARRIER
BASE COURSE
3" SCH 40 PVC
45-DEGREE ELBOW
VAPOR BARRIER SEALED TO
PIPE PER MANUFACTURER
INSTRUCTIONS
SOLID 3" SCH 40 PVCPIPE SLEEVE
(SEE SPECIFICATION #12)
WALL (VARIES)
MANUFACTURER SPECIFIED
FITTING TO 3" SCH 40 PVC
MANUFACTURER SPECIFIED
FITTING TO 3" SCH 40 PVC
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
VAPOR INTRUSION
MITIGATION SYSTEM
CROSS-SECTION
DETAILS #1 - 13
VM-7
PROFESSIONAL
APPROVAL
H&H NO. TCR-003
AL
E
X
A
N

L
O
S
O
33
0
5

S
O
U
T
H

B
O
U
L
E
V
A
R
D
CH
A
R
L
O
T
T
E
,

N
O
R
T
H

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

P
R
O
J
E
C
T

N
O
.

2
5
1
0
1
-
2
1
-
0
6
0
DATE: 02-21-23
DEVELOPER:
MAPLE MULTI-FAMILY
LAND SE LP
4064 COLONY ROAD
SUITE 405
CHARLOTTE, NORTH CAROLINA
REVISIONS
REV DATE DESCRIPTION
1 2/21/23 REV 1 - DEQ SUBMISSION
02/21/23
\\
h
a
r
t
h
i
c
k
.
s
h
a
r
e
p
o
i
n
t
.
c
o
m
@
S
S
L
\
D
a
v
W
W
W
R
o
o
t
\
s
i
t
e
s
\
M
a
s
t
e
r
F
i
l
e
s
-
1
\
S
h
a
r
e
d

D
o
c
u
m
e
n
t
s
\
A
A
A
-
M
a
s
t
e
r

P
r
o
j
e
c
t
s
\
T
r
a
m
m
e
l
l

C
r
o
w

R
e
s
i
d
e
n
t
i
a
l

-

T
C
R
\
T
C
R
-
0
0
3

P
r
e
s
s

C
l
u
b

C
l
e
a
n
e
r
s
\
V
I
M
P
\
F
i
g
u
r
e
s
\
T
C
R
-
0
0
3
_
V
I
M
S

D
e
s
i
g
n
_
R
1
.
d
w
g
OPEN-AIR SPACE
ENCLOSED
SPACE
VIMS AT RETAINING WALL ADJACENT TO ENCLOSED SPACE
NTS
16
VM-8
SUB-BASE
BASE COURSE
VAPOR BARRIER
VAPOR BARRIER SEALED TO OUTSIDE OF
CONCRETE AND WATERPROOFING MEMBRANE
(WHERE PRESENT) PER MANUFACTURER
INSTRUCTIONS (SEE DETAIL 15/VM-8)
WATERPROOFING AND
INSULATION (IF PRESENT)
WALL (VARIES)
CONCRETE
FLOOR SLAB
WHERE PRACTICAL, INSTALL
VAPOR BARRIER TO TOP OF
FOOTER
VIMS AT RETAINING WALL AT ENCLOSED INTERIORS (TYP)
NTS
17
VM-8
ENCLOSED
SPACE
ENCLOSED
SPACE
SUB-BASE
BASE COURSE
VAPOR BARRIER
DRAIN, IF
PRESENT
VAPOR BARRIER SEALED TO OUTSIDE OF
CONCRETE AND WATERPROOFING MEMBRANE
(WHERE PRESENT) PER MANUFACTURER
INSTRUCTIONS (SEE DETAIL 15/VM-8)
WALL (VARIES)
WHERE PRACTICAL, INSTALL
VAPOR BARRIER TO TOP OF
FOOTER
ENCLOSED
SPACE
ENCLOSED
SPACE
VIMS AT STAIRWELL WITH PIPE CONNECTION
NTS
18
VM-8
SUB-BASE
BASE COURSE
VAPOR BARRIER
VAPOR BARRIER SEALED TO OUTSIDE OF
CONCRETE AND WATERPROOFING MEMBRANE
(WHERE PRESENT) PER MANUFACTURER
INSTRUCTIONS (SEE DETAIL 15/VM-8)
WATERPROOFING AND
INSULATION (IF PRESENT)
DRAIN
WALL (VARIES)
CONCRETE
FLOOR SLAB
SOLID TO SLOTTED 3" SCH 40 PVC
PIPE TRANSITION (SLIP COUPLING
OR THREADED JOINT)
3" SCH 40 PVC
90-DEGREE ELBOW
VAPOR BARRIER SEALED TO
PIPE PER MANUFACTURER
INSTRUCTIONS
3" SCH 40 PVC
45-DEGREE ELBOW
PIPE SLEEVE
SLOPE
WHERE PRACTICAL, INSTALL
VAPOR BARRIER TO TOP OF
FOOTER
VIMS AT STAIRCASE RETAINING WALL
NTS
19
VM-8
EXTERIOR
OPEN-AIR
STAIRCASE
ENCLOSED
SPACE
TERMINATE VAPOR BARRIER
AT SOIL GRADE, WHERE
APPLICABLE
SUB-BASE
BASE COURSE
VAPOR BARRIER
VAPOR BARRIER SEALED TO
OUTSIDE OF CONCRETE AND
WATERPROOFING MEMBRANE
(WHERE PRESENT) PER
MANUFACTURER INSTRUCTIONS
(SEE DETAIL 14/VM-7)
WALL (VARIES)
DRAIN, IF
PRESENT
MOISTURE BARRIER, IF
WARRANTED, BY OTHERS
WHERE PRACTICAL, INSTALL
VAPOR BARRIER TO TOP OF
FOOTER
VAPOR BARRIER AT SLAB EDGE20
NTSVM-8
TERMINATE VAPOR BARRIER AT SOIL
GRADE, WHERE APPLICABLE
WALL (VARIES)
BASE COURSESUB-BASE
WALL (VARIES)
VAPOR BARRIER
TERMINATE VAPOR BARRIER
AT SOIL GRADE, WHERE
APPLICABLE
VAPOR BARRIER AT SLAB EDGE ADJACENT TO OPEN-AIR SPACE23
NTSVM-8
MOISTURE BARRIER, IF
WARRANTED, BY OTHERS
WALL (VARIES)
BASE COURSESUB-BASE
VAPOR BARRIER
OPEN-AIR
SPACE ENCLOSED
INTERIOR
TERMINATE VAPOR BARRIER
AT SOIL GRADE, WHERE
APPLICABLE
VAPOR BARRIER AT SLAB EDGE WITH GRADE BEAM21
NTSVM-8
WALL (VARIES)
BASE COURSESUB-BASE
VAPOR BARRIER
OPEN-AIR
SPACE ENCLOSED
INTERIOR
OPTIONAL VAPOR BARRIER
INSTALLATION METHOD
VAPOR BARRIER TERMINATION WITHOUT SUB-SLAB VENTING24
BASE COURSE
SUB-BASE
NTSVM-8
WALL (VARIES)
VAPOR BARRIER
TERMINATE VAPOR
BARRIER APPROX. 1 FT
FROM MITIGATED SPACE
OPEN-AIR
SPACE ENCLOSED
INTERIOR
MOISTURE BARRIER, IF
WARRANTED, BY OTHERS
FINISHED FLOOR SLAB
2" SCH 40 PVC SET WITHIN GRAVEL LAYER
2" DRAIN EXPANSION TEST PLUG
VIMS MONITORING POINT - TYPICAL DETAIL VIEW
NTS
25
VM-8
VAPOR BARRIER PENETRATION SEALED TO
PIPE PER MANUFACTURER INSTRUCTIONS
2" SCH 40 PVC 90 DEGREE ELBOW
FLOOR CLEANOUT, ADJUSTABLE, 4" DIA ZURN
INDUSTRIES MODEL #CO2450-PV4 (OR ENGINEER
APPROVED EQUIVALENT) FLUSH WITH FINISHED FLOOR
BASE COURSE
4" x 2" FLUSH REDUCER
BUSHING
PVC TERMINATION SCREEN
(SEE SPECIFICATION #7)
VIMS MONITORING POINT THROUGH SLAB STEP
NTS
26
VM-8
SUB-BASE
VAPOR BARRIER
BASE COURSE
VAPOR BARRIER SEALED TO PIPE PER
MANUFACTURER INSTRUCTIONS
PIPE SLEEVE
PVC TERMINATION
SCREEN 2" SCH 40 PVC 90
DEGREE ELBOW
PROVIDE PIPE SUPPORT TO PREVENT
LOW POINT IN SOLID PIPE. MAINTAIN 1%
SLOPE TOWARD OPEN SECTION OF
PIPE
VIMS RISER WITH UPPER LEVEL OFF-SET (WHERE APPLICABLE)
NTS
27
VM-8
TO EXHAUST
(SEE DETAIL 27/VM-8)
MIN 1% (1/8" PER 1') SLOPE
TOWARD EXTRACTION POINT
CEILING TRUSSES
FLOOR
PIPE SUPPORTS PER NC
BUILDING CODE
SOLID 3" DIA METAL
RISER. LENGTH VARIES
3" DIA METAL
90-DEGREE ELBOW3" DIA METAL
90-DEGREE ELBOW
CEILING
SLOPE
VIMS TURBINE VENTILATOR28
NTS
TURBINE VENTILATOR (EMPIRE MODEL
TV04SS OR SIMILAR)
OUTDOOR RATED ELECTRICAL JUNCTION BOX FOR
POTENTIAL FUTURE VACUUM FAN (REFER TO
SPECIFICATION #5)
4" X 3" PVC NO-HUB COUPLING - 3" RISERS
RISER DUCT PIPE THROUGH ROOF
FLASHING
ROOFTOP
VM-8
15
VM-8 NTS
VIMS AT ELEVATOR PIT - WATERPROOFING DETAIL
SOIL SUB-BASE
VAPOR BARRIER
DRAINAGE MAT
(IF PRESENT)
CONCRETE
WATERPROOFING MEMBRANE
(IF PRESENT - REFER TO ARCH. PLANS)
(SEE SPECIFICATION #13)
14
NTSVM-8
VIMS AT ELEVATOR PIT
CONTINUOUS VAPOR
BARRIER SEALED PER
MANUFACTURER
INSTRUCTIONS
SUMP PIT
SUB-BASE
BASE COURSE
VAPOR BARRIER
WATERPROOFING MEMBRANE
(IF PRESENT - REFER TO
ARCH. PLANS)
(SEE SPECIFICATION #13)
SEE DETAIL 14/VM-7
VAPOR BARRIER SEALED TO
OUTSIDE OF CONCRETE AND
WATERPROOFING MEMBRANE
(WHERE PRESENT) PER
MANUFACTURER INSTRUCTIONS
(SEE DETAIL 15/VM-8)
SEAL VAPOR BARRIER TO COLUMN
FOOTING AND COLUMN WHERE FOOTING
AND COLUMN CONTACT ELEVATOR PIT
CONCRETE COLUMN,
IF PRESENT
COLUMN FOOTING,
IF PRESENT
VIMS VAPOR BARRIER AT THICKENED SLAB TERMINATION
NTS
22
VM-8
VAPOR BARRIER WALL (VARIES)
OPEN AIRENCLOSED
SPACE
VAPOR BARRIER SEALED TO CONCRETE
PER MANUFACTURER INSTRUCTIONS
BASE COURSE
SUB-BASE
MOISTURE BARRIER, IF
WARRANTED, BY OTHERS
TRENCH BACKFILL AT BURIED UTILITY CONNECTION
NTS
29
VM-8
CONCRETE FLOOR SLAB
VAPOR BARRIER SEALED TO
CONCRETE PER
MANUFACTURER INSTRUCTIONS
VAPOR BARRIER
BASE COURSE
SUB-BASE
EXTERIOR GRADE
(VARIES)
EXTERIOR WALL
(NOT PRESENT IN ALL LOCATIONS)
TRENCH DAM
(SEE SPECIFICATION #14)
CONDUIT/UTILITY PIPING
TYPICAL TRENCH
BACKFILL
TERMINATE VAPOR BARRIER
AT SOIL GRADE (SEE
DETAILS 20 & 21 / VM-8)
VIMS AT PERIMETER TURNED-DOWN SLAB
NTS
24A
VM-8
VAPOR BARRIER
GRAVEL BETWEEN OPEN-AIR SPACE
AND OCCUPIED SPACE SHALL BE
DISCONTINUOUS
(SEE SPECIFICATION #9)
NON-LOAD BEARING
WALL (IF PRESENT)
OPEN-AIR
SPACE
ENCLOSED
SPACE
EXTEND TURNED DOWN
SLAB MINIMUM 2" BELOW
STONE LAYERS.SOIL SUB-BASE
REFER TO STRUCTURAL PLANS FOR FINAL
LAYOUT AND TURNED DOWN DIMENSIONS
EXTEND VAPOR BARRIER ON
OUTSIDE OF TURNED DOWN SLAB,
WHERE POSSIBLE
MOISTURE BARRIER, IF
WARRANTED, BY OTHERS
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
VAPOR INTRUSION
MITIGATION SYSTEM
CROSS-SECTION
DETAILS #14 - 29
VM-8
PROFESSIONAL
APPROVAL
H&H NO. TCR-003
AL
E
X
A
N

L
O
S
O
33
0
5

S
O
U
T
H

B
O
U
L
E
V
A
R
D
CH
A
R
L
O
T
T
E
,

N
O
R
T
H

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

P
R
O
J
E
C
T

N
O
.

2
5
1
0
1
-
2
1
-
0
6
0
DATE: 02-21-23
DEVELOPER:
MAPLE MULTI-FAMILY
LAND SE LP
4064 COLONY ROAD
SUITE 405
CHARLOTTE, NORTH CAROLINA
REVISIONS
REV DATE DESCRIPTION
1 2/21/23 REV 1 - DEQ SUBMISSION
02/21/23
\\
h
a
r
t
h
i
c
k
.
s
h
a
r
e
p
o
i
n
t
.
c
o
m
@
S
S
L
\
D
a
v
W
W
W
R
o
o
t
\
s
i
t
e
s
\
M
a
s
t
e
r
F
i
l
e
s
-
1
\
S
h
a
r
e
d

D
o
c
u
m
e
n
t
s
\
A
A
A
-
M
a
s
t
e
r

P
r
o
j
e
c
t
s
\
T
r
a
m
m
e
l
l

C
r
o
w

R
e
s
i
d
e
n
t
i
a
l

-

T
C
R
\
T
C
R
-
0
0
3

P
r
e
s
s

C
l
u
b

C
l
e
a
n
e
r
s
\
V
I
M
P
\
F
i
g
u
r
e
s
\
T
C
R
-
0
0
3
_
V
I
M
S

D
e
s
i
g
n
_
R
1
.
d
w
g
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
VAPOR INTRUSION
MITIGATION SYSTEM
SPECIFICATIONS
VM-9
PROFESSIONAL
APPROVAL
H&H NO. TCR-003
AL
E
X
A
N

L
O
S
O
33
0
5

S
O
U
T
H

B
O
U
L
E
V
A
R
D
CH
A
R
L
O
T
T
E
,

N
O
R
T
H

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

P
R
O
J
E
C
T

N
O
.

2
5
1
0
1
-
2
1
-
0
6
0
DATE: 02-21-23
DEVELOPER:
MAPLE MULTI-FAMILY
LAND SE LP
4064 COLONY ROAD
SUITE 405
CHARLOTTE, NORTH CAROLINA
VAPOR INTRUSION MITIGATION SYSTEM (VIMS) SPECIFICATIONS
1.THIS VAPOR MITIGATION PLAN IS INTENDED TO BE USED FOR DIRECTION OF VIMS COMPONENT
INSTALLATION ONLY AND IS NOT INTENDED TO GUIDE CONSTRUCTION OF BUILDING STRUCTURAL
COMPONENTS. CONSTRUCTION CONTRACTOR SHALL VERIFY CONSISTENCY OF VIMS DETAILS WITH
APPLICABLE STRUCTURAL, ARCHITECTURAL, MECHANICAL, & PLUMBING PLANS AND RESOLVE ANY
INCONSISTENCIES PRIOR TO VIMS INSTALLATION.
2.VIMS VAPOR BARRIER (LINER) SHALL BE VAPORBLOCK PLUS 20 (VPB20) 20-MIL VAPOR LINER
MANUFACTURED BY RAVEN INDUSTRIES (RAVEN). AS AN ALTERNATIVE, DRAGO WRAP 20-MIL VAPOR
INTRUSION BARRIER MANUFACTURED BY STEGO INDUSTRIES, LLC (STEGO) CAN BE USED, PENDING
APPROVAL BY THE ENGINEER.
THE VAPOR LINER SHALL BE INSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER INSTALLATION
INSTRUCTIONS TO CREATE A CONTINUOUS LINER BELOW MITIGATED AREAS, AND ALONG RETAINING
WALLS AND SLAB-ON-GRADE FOLDS WITHIN THE EXTENT OF THE VAPOR LINER BOUNDARY. A
MINIMUM 5-INCH THICK BASE COURSE CONSISTING OF CLEAN #57 STONE (WASHED WITH NO FINES)
SHALL BE INSTALLED BENEATH THE VIMS VAPOR LINER. A SIMILAR HIGH PERMEABILITY STONE MAY BE
USED, PENDING APPROVAL BY THE ENGINEER.
2.1.THE VAPOR LINER SHALL BE PROPERLY SEALED IN ACCORDANCE WITH THE MANUFACTURER
INSTALLATION INSTRUCTIONS AS SPECIFIED IN THESE DRAWINGS TO FOOTERS, SLAB STEPS,
RETAINING WALLS, PENETRATIONS (SUCH AS PIPE PENETRATIONS), OR OTHER BUILDING
COMPONENTS WITHIN THE VIMS EXTENTS. VAPOR LINER SHALL BE INSTALLED UNDER CMU
WALLS WHICH SUPPORT OCCUPIED ENCLOSED SPACES.
2.2.VAPOR BARRIER SHALL BE INSTALLED UNDER SLABS, ON WALLS, AND ALONG OTHER
STRUCTURAL COMPONENTS WHICH COME IN CONTACT WITH BOTH AN OCCUPIABLE ENCLOSED
SPACE AND SOIL. NOT ALL AREAS FOR THE VAPOR BARRIER MAY BE DEPICTED ON THE
DRAWINGS. THE GENERAL CONTRACTOR SHALL VERIFY ALL REQUIRED LOCATIONS FOR VAPOR
BARRIER LONG VERTICAL WALLS PRIOR TO CONSTRUCTION.
2.3.ALL CONCRETE BOX-OUTS, INCLUDING BUT NOT LIMITED TO SHOWER/BATH TUB DRAINS, SHALL
HAVE A CONTINUOUS VAPOR BARRIER INSTALLED BELOW.
2.4.VAPOR BARRIER SHALL EXTEND ALONG FOOTING EXTERIOR, IF POSSIBLE, AT LOCATIONS WHERE
EXTERIOR GRADE IS HIGHER THAN INTERIOR GRADE.
2.5.IN AREAS WITH EXPANSION BOARDS (E.G. ALONG COLUMNS), THE VAPOR BARRIER MUST BE
SEALED DIRECTLY TO THE CONCRETE WITH THE EXPANSION BOARD INSTALLED OVER THE VAPOR
BARRIER.
3.SUB-SLAB SLOTTED VAPOR COLLECTION PIPE SHALL BE 3" SCH 40 PVC PIPE WITH 0.020" TO 0.060"
SLOT WIDTH AND 1/8" SLOT SPACING. AN ALTERNATE SLOT PATTERN, OR SCH 40 PVC PERFORATED
PIPE WITH 5/8" OR SMALLER DIAMETER PERFORATIONS, OR SOIL GAS COLLECTOR MAT (1" X 12"),
WITH SIMILAR AIR FLOW CHARACTERISTICS TO THE SLOTTED PIPE MAY BE USED PENDING APPROVAL
BY THE DESIGN ENGINEER. IF CIRCULAR PIPE IS USED, A PVC TERMINATION SCREEN (WALRICH
CORPORATION #2202052, OR SIMILAR) SHOULD BE INSTALLED ON THE END OF PIPE.
3.1.SLOTTED COLLECTION PIPING SHALL BE SET WITHIN THE MINIMUM 4” BASE COURSE LAYER, WITH
APPROXIMATELY 1” OF BASE COURSE MATERIAL BELOW THE PIPING.
3.2.SOIL GAS COLLECTOR MAT (IF INSTALLED) SHALL NOT BE USED THROUGH A CONCRETE FOOTING.
SCH 40 PVC PIPE (3" DIA) SHALL BE USED FOR ALL SUB-SLAB VENT PIPE CROSSINGS THROUGH
FOOTINGS AND MANUFACTURER APPROVED FITTINGS SHALL BE UTILIZED TO CONNECT THE SOIL
GAS COLLECTOR MAT TO PVC PIPING FOR CROSSINGS THROUGH FOOTINGS.
4.3" SCH 40 METAL RISER DUCT PIPING SHALL BE INSTALLED TO CONNECT EACH SLAB PENETRATION
LOCATION TO A ROOFTOP EXHAUST DISCHARGE POINT WITH STATIONARY VENTILATOR (SEE
SPECIFICATION #5). ABOVE-SLAB RISER DUCT PIPE THAT RUNS BETWEEN THE SLAB PENETRATION AND
THE ROOFTOP EXHAUST DISCHARGE SHALL BE INSTALLED PER APPLICABLE BUILDING CODE AND AS
SPECIFIED IN THE CONSTRUCTION DOCUMENTS AND DRAWINGS.
4.1.VERTICAL RISER PIPING SHALL BE CONNECTED WITH AIR-TIGHT METAL FITTINGS SUITABLE UNDER
DRAIN, WASTE, VENT (DWV) CONDITIONS (NON-PRESSURE APPLICATIONS).
4.2.VERTICAL RISER PIPING MUST BE INSTALLED PER 2018 NORTH CAROLINA STATE PLUMBING CODE.
4.3.VIMS BELOW AND ABOVE GRADE SOLID PIPING SHALL NOT BE TRAPPED AND SHALL BE SLOPED A
MINIMUM OF 1/8 UNIT VERTICAL BY 12 UNITS HORIZONTAL (1% SLOPE) TO GRAVITY DRAIN.
BENDS, TURNS, AND ELBOWS IN VERTICAL RISER PIPES SHALL BE MINIMIZED FROM THE SLAB TO
THE ROOFTOP.
4.4.METAL PIPING SHOULD CONSIST OF GALVANIZED STEEL, DUCTILE IRON, CAST IRON, OR OTHER
BUILDING CODE ALLOWED MATERIAL.
5.THE RISER DUCT PIPING SHALL EXTEND IN A VERTICAL ORIENTATION THROUGH THE BUILDING ROOF
AND TERMINATE A MINIMUM OF 2 FT ABOVE THE BUILDING ROOF LINE. EMPIRE MODEL TV04SS
VENTILATOR (OR ALTERNATE APPROVED BY DESIGN ENGINEER) SHALL BE INSTALLED ON THE EXHAUST
DISCHARGE END OF EACH RISER DUCT PIPE. THE RISER DUCT PIPE AND THE VENTILATOR SHALL BE
SECURED TO THE PVC RISER IN A VERTICAL ORIENTATION.
5.1.EXHAUST DISCHARGE LOCATIONS SHALL BE A MINIMUM OF 10 FT FROM ANY OPERABLE
OPENING OR AIR INTAKE INTO THE BUILDING. NOTE THAT DISCHARGE LOCATIONS ON THE
ROOFTOP DEPICTED IN THE VAPOR MITIGATION PLAN MAY BE REPOSITIONED AS LONG AS THE
NEW POSITION MEETS THE REQUIREMENTS PRESENTED ABOVE, PENDING ENGINEER APPROVAL.
5.2.AN ELECTRICAL JUNCTION BOX (120VAC REQUIRED) FOR OUTDOOR USE SHALL BE INSTALLED
NEAR THE PIPE DISCHARGE LOCATION ON THE ROOFTOP FOR POTENTIAL FUTURE CONVERSION
TO ELECTRIC FANS, IF REQUIRED. ALL WIRING AND ELECTRICAL SHALL BE INSTALLED PER
APPLICABLE BUILDING AND ELECTRICAL CODES.
6.ABOVE-SLAB ACCESSIBLE RISER DUCT PIPING SHALL BE PERMANENTLY IDENTIFIED BY MEANS OF A TAG
OR STENCIL AT A MINIMUM OF ONCE EVERY 10-LINEAR FT WITH "VAPOR MITIGATION: CONTACT
MAINTENANCE". LABELS SHALL ALSO BE FIXED NEAR THE VENTILATORS IN AN ACCESSIBLE LOCATION
ON THE ROOFTOP.
7.MONITORING POINTS SHALL CONSIST OF 2-INCH DIAMETER SCH 40 PVC PIPE WITH A 90-DEGREE
ELBOW TO FORM AN “L” SHAPE. A MINIMUM OF 6” SECTION OF PIPE AND MAXIMUM 6 FT SECTION
OF PIPE, OR OTHERWISE APPROVED BY THE DESIGN ENGINEER, SHALL BE SET WITHIN THE BASE
COURSE LAYER WITH AN OPEN ENDED PIPE OR PIPE PROTECTION SCREEN AT THE TERMINATION. THE
PIPE TERMINATION SHALL BE ENCASED WITHIN THE BASE COURSE LAYER.
7.1.THE HORIZONTAL PIPING SHALL BE SLOPED A MINIMUM OF 1/8 UNIT VERTICAL BY 12 UNITS
HORIZONTAL (1% SLOPE) TO GRAVITY DRAIN TOWARDS THE PIPE TERMINATION AND PREVENT
MOISTURE FROM COLLECTING AT THE 90-DEGREE ELBOW.
7.2.THE MONITORING POINT INTAKE SHALL BE PLACED A MINIMUM OF 5-FT FROM EXTERIOR
FOOTERS.
7.3.MONITORING POINTS LOCATED IN STAIRWELLS ARE INTENDED TO BE INSTALLED BELOW
STAIRWELL LANDINGS AND MAY BE RE-POSITIONED TO PROVIDE SUITABLE ACCESS TO THE POINT
PER APPROVAL OF THE DESIGN ENGINEER.
7.4.THE END OF THE PIPE SHALL CONTAIN A PVC TERMINATION SCREEN, OR HAVE A MINIMUM OF
THREE 5
8" DIA HOLES DRILLED INTO A SOLID CAP, SHALL HAVE VENT SLOTS WITH MINIMUM 1
SQUARE INCH OF OPEN AREA. AN OPEN PIPE MAY USED PER APPROVAL OF THE DESIGN
ENGINEER.
7.5.A 4-INCH DIAMETER ADJUSTABLE FLOOR CLEAN-OUT (ZURN INDUSTRIES MODEL #CO2450-PV4,
OR EQUIVALENT) SHALL BE INSTALLED AND SET FLUSH WITH THE FINISHED CONCRETE SURFACE,
OR THE MONITORING POINT SHALL BE PLACED BEHIND A WALL ACCESS PANEL PER THE DETAILS.
8.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS SHALL USE "LOW OR NO VOC" PRODUCTS
AND MATERIALS, WHEN POSSIBLE, AND SHALL NOT USE PRODUCTS CONTAINING THE COMPOUNDS
TETRACHLOROETHENE (PCE) OR TRICHLOROETHENE (TCE). THE CONSTRUCTION CONTRACTOR AND
SUB-CONTRACTORS SHALL PROVIDE SAFETY DATA SHEETS (SDS) TO THE ENGINEER FOR THE PRODUCTS
AND MATERIALS USED FOR CONSTRUCTION OF THE VIMS.
9.IN INSTANCES WHERE A THICKENED FOOTING OR RETAINING WALL IS NOT SPECIFIED AT THE EXTENT
OF VAPOR LINER, A THICKENED SLAB OR FOOTER SHALL BE INSTALLED BY THE CONTRACTOR THAT
INCLUDES A SOIL SUBBASE TO CREATE A CUT-OFF FOOTER AT THE EXTENT OF VAPOR LINER. THE
ADDITIONAL THICKENED SLAB OR FOOTER SHALL NOT ALLOW FOR CONTINUOUS GRAVEL BETWEEN
THE VIMS EXTENTS AND EXTERIOR NON-MITIGATED AREAS.
10.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS SHALL AVOID THE USE OF TEMPORARY FORM
BOARDS THAT PENETRATE THE VAPOR LINER WHERE POSSIBLE. IF TEMPORARY FORM BOARDS ARE
USED, THE SIZE AND NUMBER OF PENETRATIONS THROUGH THE VAPOR LINER SHALL BE LIMITED AND
SMALL DIAMETER SOLID STAKES (I.E. METAL STAKES) SHALL BE USED. IN ALL CASES, AS FORM BOARDS
ARE REMOVED, THE CONTRACTOR OR SUB-CONTRACTORS SHALL RESEAL ALL PENETRATIONS IN
ACCORDANCE WITH VAPOR LINER MANUFACTURER INSTALLATION INSTRUCTIONS.
10.1.HOLLOW FORMS OR CONDUITS THAT CONNECT THE SUB-SLAB ANNULAR SPACE TO ENCLOSED
ABOVE SLAB SPACES SHALL NOT BE PERMITTED.
10.2.AREAS OF UTILITY BANKS (e.g. LOCATION OF THREE OR MORE ADJACENT UTILITIES THROUGH THE
SLAB) SHALL BE SEALED TO CREATE AN AIR-TIGHT BARRIER AROUND THE UTILITY CONDUITS.
11.INSPECTIONS: THE INSTALLATION CONTRACTOR(S) SHALL NOT COVER ANY PORTIONS OF THE VIMS
WITHOUT INSPECTION. INSPECTIONS OF EACH COMPONENT OF THE VIMS SHALL BE CONDUCTED BY
THE DESIGN ENGINEER, OR ENGINEER'S DESIGNEE, TO CONFIRM VIMS COMPONENTS ARE INSTALLED
PER THE APPROVED DESIGN. THE REQUIRED INSPECTION COMPONENTS INCLUDE: (1) INSPECTION OF
SUB-SLAB PIPING LAYOUT, (2) GRAVEL PLACEMENT, (3) MONITORING POINT PLACEMENT PRIOR TO
INSTALLING VAPOR BARRIER; (4) INSPECTION OF VAPOR BARRIER PRIOR TO POURING CONCRETE; (5)
INSPECTION OF ABOVE-GRADE PIPING LAYOUT; AND (6) INSPECTION OF VENTILATOR AND RISER DUCT
PIPE CONNECTIONS. INSPECTIONS WILL BE COMBINED WHEN POSSIBLE DEPENDING ON THE
CONSTRUCTION SEQUENCE/SCHEDULE. THE CONSTRUCTION CONTRACTOR(S) SHALL COORDINATE
WITH THE ENGINEER TO PERFORM THE REQUIRED INSPECTIONS. A MINIMUM 48-HOUR NOTICE
SHALL BE GIVEN TO THE ENGINEER PRIOR TO THE REQUIRED INSPECTION(S) WITTH SUBSEQUENT
NOTIFICATION PROVIDED TO NCDEQ.
12.PIPE SLEEVES, IF USED, SHALL BE PROPERLY SEALED TO PREVENT A PREFERENTIAL AIR PATHWAY FROM
BELOW THE SLAB INTO THE BUILDING. REFER TO TO STRUCTURAL DRAWINGS FOR FOOTING DETAILS
ADDRESSING VIMS PIPING.
13.WATERPROOFING INCLUDING MEMBRANES AND DRAINAGE MATS SHALL BE INSTALLED IN
ACCORDANCE WITH THE ARCHITECTURAL AND STRUCTURAL PLANS. IF WATERPROOFING IS PRESENT,
THE VAPOR BARRIER SHALL BE INSTALLED BETWEEN WATERPROOFING AND ANY DRAINAGE FEATURES
INCLUDING DRAINAGE MATS. THE INSTALLER SHALL CONFIRM THAT THE WATERPROOFING
PRODUCTS AND SEALANTS USED DURING CONSTRUCTION ARE COMPATIBLE WITH THE SPECIFIED
VAPOR BARRIER.
14.TO CONTROL HORIZONTAL GAS MIGRATION THROUGH UTILITY TRENCH BACKFILL, TRENCH DAMS, IF
WARRANTED, SHALL BE INSTALLED ALONG UTILITY TRENCHES ENTERING THE BUILDING FROM
OUTSIDE THE BUILDING FOOTPRINT, THE TRENCH DAMS SHALL BE INSTALLED IMMEDIATELY
ADJACENT TO THE EXTERIOR PERIMETER OF THE BUILDING FOUNDATION. TRENCH DAMS SHALL HAVE
A MINIMUM LENGTH OF 3 FEET AND SHALL EXTEND A MINIMUM OF 6 INCHES ABOVE THE TOP OF THE
TRENCH BACKFILL ALONG THE EXTERIOR OF THE BUILDING. TRENCH DAMS SHALL BE AN IMPERVIOUS
FILL OF LEAN CONCRETE, A BENTONITE CEMENT SLURRY, SOIL AND CEMENT MIX, FLOWABLE FILL, OR
SIMILAR. CONDUIT PENETRATIONS WITHIN THE BUILDING FOOTPRINTS (RESIDENTIAL BUILDINGS AND
PARKING GARAGE), INCLUDING ELECTRICAL AND COMMUNICATION LINES, SHALL BE SEALED AT THE
CONCRETE GRADE USING SILICONE SEALANT ALONG THE EXTERIOR CASING EXTENTS AND SHALL BE
SEALED INSIDE THE CONDUIT USING SEALING COMPOUND TO REDUCE THE POTENTIAL FOR A
PREFERENTIAL PATHWAY TO THE OCCUPIABLE SPACE.
REVISIONS
REV DATE DESCRIPTION
1 2/21/23 REV 1 - DEQ SUBMISSION
02/21/23
\\
h
a
r
t
h
i
c
k
.
s
h
a
r
e
p
o
i
n
t
.
c
o
m
@
S
S
L
\
D
a
v
W
W
W
R
o
o
t
\
s
i
t
e
s
\
M
a
s
t
e
r
F
i
l
e
s
-
1
\
S
h
a
r
e
d

D
o
c
u
m
e
n
t
s
\
A
A
A
-
M
a
s
t
e
r

P
r
o
j
e
c
t
s
\
T
r
a
m
m
e
l
l

C
r
o
w

R
e
s
i
d
e
n
t
i
a
l

-

T
C
R
\
T
C
R
-
0
0
3

P
r
e
s
s

C
l
u
b

C
l
e
a
n
e
r
s
\
V
I
M
P
\
F
i
g
u
r
e
s
\
T
C
R
-
0
0
3
_
V
I
M
S

D
e
s
i
g
n
_
R
1
.
d
w
g

Appendix C

Vapor Intrusion Mitigation System Product Specification Sheets

Appendix C-1 VaporBlock 20 (VBP-20) Product Specification Sheets & Installation Instructions

PRODUCT PART #
VaporBlock® Plus™ 20 ................................................................ VBP20
UNDER-SLAB VAPOR / GAS BARRIER
Under-Slab Vapor/Gas Retarder
© 2018 RAVEN INDUSTRIES INC. All rights reserved.
VAPORBLOCK® PLUS™VBP20
PRODUCT DESCRIPTION
VaporBlock® Plus™ is a seven-layer co-extruded barrier
made using high quality virgin-grade polyethylene and
EVOH resins to provide unmatched impact strength as well
as superior resistance to gas and moisture transmission.
VaporBlock® Plus™ 20 is more than 100 times less permeable
than typical high-performance polyethylene vapor retarders
against Methane, Radon, and other harmful VOCs. Tested and
verified for unsurpassed protection against BTEX, HS, TCE, PCE,
methane, radon, other toxic chemicals and odors.
VaporBlock® Plus™ 20 multi-layer gas barrier is manufactured
with the latest EVOH barrier technology to mitigate hazardous
vapor intrusion from damaging indoor air quality, and the safety
and health of building occupants. VBP20 is one of the most
effective underslab gas barriers in the building industry today
far exceeding ASTM E-1745 (Plastic Water Vapor Retarders
Used in Contact with Soil or Granular Fill Under Concrete Slabs)
Class A, B and C requirements. Available in a 20 (Class A) mil
thicknesses designed to meet the most stringent requirements.
VaporBlock® Plus™ 20 is produced within the strict guidelines
of our ISO 9001 Certified Management System.
PRODUCT USE
VaporBlock® Plus™ 20 resists gas and moisture migration
into the building envelop when properly installed to provide
protection from toxic/harmful chemicals. It can be installed as
part of a passive or active control system extending across the
entire building including floors, walls and crawl spaces. When
installed as a passive system it is recommended to also include
a ventilated system with sump(s) that could be converted to an
active control system with properly designed ventilation fans.
VaporBlock® Plus™ 20 works to protect your flooring and
other moisture-sensitive furnishings in the building’s interior
from moisture and water vapor migration, greatly reducing
condensation, mold and degradation.
SIZE & PACKAGING
VaporBlock® Plus™ 20 is available in 10’ x 150’ rolls to
maximize coverage. All rolls are folded on heavy-duty cores
for ease in handling and installation. Other custom sizes
with factory welded seams are available based on minimum
volume requirements. Installation instructions and ASTM E-1745
classifications accompany each roll.
APPLICATIONS
Radon Barrier
Methane Barrier
VOC Barrier
Brownfields Barrier
Vapor Intrusion Barrier
Under-Slab Vapor Retarder
Foundation Wall Vapor Retarder
VaporBlock® Plus™ is a seven-layer co-extruded barrier made using high quality virgin-grade polyethylene and EVOH resins to provide unmatched impact strength as well as superior resistance to gas and moisture transmission.
VaporBlock® Plus™ Placement
All instructions on architectural or structural drawings should be reviewed and followed.
Detailed installation instructions accompany each roll of VaporBlock® Plus™ and can also be located at www.ravenefd.com.
ASTM E-1643 also provides general installation information for vapor retarders.
VAPORBLOCK® PLUS™ 20
PROPERTIES TEST METHOD IMPERIAL METRIC
AppeArAnce White/Gold
Thickness, nominAl 20 mil 0.51 mm
WeighT 102 lbs/MSF 498 g/m²
clAssificATion ASTM E 1745 CLASS A, B & C
³ Tensile sTrengTh
ASTM E 154Section 9(D-882)58 lbf 102 N
impAcT resisTAnce ASTM D 1709 2600 g
permeAnce (neW mATeriAl)
ASTM E 154Section 7ASTM E 96Procedure B
0.0098 Perms
grains/(ft²·hr·in·Hg)
0.0064 Perms
g/(24hr·m²·mm Hg)
permeAnce (AfTer condiTioning)
(sAme meAsuremenT As Above permeAnce)
ASTM E 154Section 8, E96Section 11, E96Section 12, E96Section 13, E96
0.00790.00790.00970.0113
0.00520.00520.00640.0074
WvTr ASTM E 96Procedure B 0.0040 grains/hr-ft²0.0028 gm/hr-m²
benzene permeAnce See Note ⁶1.13 x 10-¹⁰ m²/sec or 3.62 x 10-¹³ m/s
Toluene permeAnce See Note ⁶1.57 x 10-¹⁰ m²/sec or 1.46 x 10-¹³ m/s
eThylbenzene permeAnce See Note ⁶1.23 x 10-¹⁰ m²/sec or 3.34 x 10-¹⁴ m/s
m & p-Xylenes permeAnce See Note ⁶1.17 x 10-¹⁰ m²/sec or 3.81 x 10-¹⁴ m/s
o-Xylene permeAnce See Note ⁶1.10 x 10-¹⁰ m²/sec or 3.43 x 10-¹⁴ m/s
hydrogen sulfide See Note 9 1.92E-⁰⁹ m/s
TrichloroeThylene (Tce) See Note ⁶7.66 x 10-¹¹ m²/sec or 1.05 x 10-¹⁴ m/s
perchloroeThylene (pce)See Note ⁶7.22 x 10-¹¹ m²/sec or 1.04 x 10-¹⁴ m/s
rAdon diffusion coeffiecienT K124/02/95 < 1.1 x 10-13 m2/s
meThAne permeAnce ASTM D 1434 3.68E-¹² m/sGas Transmission Rate (GTR):0.32 mL/m²•day•atm
mAXimum sTATic use TemperATure 180° F 82° C
minimum sTATic use TemperATure - 70° F - 57° C
UNDER-SLAB VAPOR / GAS BARRIER
VAPORBLOCK® PLUS™VBP20
© 2018 RAVEN INDUSTRIES INC. All rights reserved.
Scan QR Code to download current technical data sheets via the Raven website.
Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be performed for applicability in specific applications and/or conditions. RAVEN INDUSTRIES MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at www.RavenEFD.com
061318 EFD 1125
RAVEN ENGINEERED FILMSP.O. Box 5107 Sioux Falls, SD 57117-5107Ph: [phone] • TF: [phone] [e-mail]
³ Tests are an average of machine and transverse directions.5 Raven Industries performs seam testing at 20” per minute.6 Aqueous Phase Film Permeance. Permeation of Volatile Organic Compounds through EVOH Thin Film Membranes and Coextruded LLDPE/EVOH/
LLDPE Geomembranes, McWatters and Rowe, Journal of Geotechnical and Geoenvironmental Engineering© ASCE/
September 2015. (Permeation is the Permeation Coefficient adjusted to actual film thickness - calculated at 1 kg/m³.)
The study used to determine PCE and TCE is titled: Evaluation of diffusion of PCE & TCE through high performance geomembranes by Di
Battista and Rowe, Queens University 8 Feb 2018.9 The study used to determine diffusion coefficients is titled: Hydrogen Sulfide (H₂S) Transport through Simulated Interim Covers with Conventional and Co-Extruded Ethylene-Vinyl Alcohol (EVOH) Geomembranes.
INSTALLATION GUIDELINES - With VaporSeal™ Tape
VaporSeal™
4” Tape
VaporSeal™ 4” Tape Optional Butyl Seal
2-Sided Tape
Gas Barrier Applications
Elements of a moisture/gas-resistant floor system. General illustration only.(Note: This example shows multiple options for waterstop placement.
VaporSeal™
4” Tape
VaporSeal™ 4” Tape Optional Butyl Seal
2-Sided Tape
Gas Barrier Applications
Fig. 2: VaporBlock® Plus™ Overlap Joint Sealing Methods
Fig. 1: VaporBlock® Plus™ Overlapping Roll-out Method
Please Note: Read these instructions thoroughly before installation to ensure proper use of VaporBlock® Plus™. ASTM E 1465, ASTM E 2121 and, ASTM E 1643 also provide valuable information regarding the installation of vapor / gas barriers. When installing this product, contractors shall conform to all applicable local, state and federal regulations and laws pertaining to residential and commercial building construction.
• When VaporBlock® Plus™ gas barrier is used as part of an active control system for radon or other gas, a ventilation system will be required.
• If designed as a passive system, it is recommended to install a ventilation system that could be converted to an active system if needed.
Materials List:VaporBlock® Plus™ Vapor / Gas BarrierVaporSeal™* 4” Seaming TapeVaporSeal™* 12” Seaming/Repair TapeButyl Seal 2-Sided TapeVaporBoot Plus Pipe Boots 12/Box (recommended)VaporBoot Tape (optional)POUR-N-SEAL™ (optional)1” Foam Weather Stripping (optional)Mako® Screed Supports (optional)
VAPORBLOCK® PLUS™ PLACEMENT
1.1. Level and tamp or roll granular base as specified. A base for a gas-reduction system may require a 4” to 6” gas permeable layer of clean coarse aggregate as specified by your architectural or structural drawings after installation of the recommended gas collection system. In this situation, a cushion layer consisting of a non-woven geotextile fabric placed directly under VaporBlock® Plus™ will help protect the barrier from damage due to possible sharp coarse aggregate.
1.2. Unroll VaporBlock® Plus™ running the longest dimension parallel with the direction of the pour and pull open all folds to full width. (Fig. 1)
1.3. Lap VaporBlock® Plus™ over the footings and seal with Raven Butyl Seal tape at the footing-wall connection. Prime concrete surfaces, when necessary, and assure they are dry and clean prior to applying Raven Butyl Seal Tape. Apply even and firm pressure with a rubber roller. Overlap joints a minimum of 6” and seal overlap with 4” VaporSeal™ Tape. When used as a gas barrier, overlap joints a minimum of 12” and seal in-between overlap with an optional 2-sided Raven Butyl Seal Tape. Then seal with 4” VaporSeal™ Tape centered on the overlap seam. (Fig. 2)
Page 1 of 4
T���
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
b
y

t
h
e

P
o
r
t
l
a
n
d

C
e
m
e
n
t

A
s
s
o
c
i
a
t
i
o
n
.
Re
f
e
r
e
n
c
e
:

K
a
n
a
r
e
,

H
o
w
a
r
d

M
.
,

C
o
n
c
r
e
t
e

F
l
o
o
r
s

a
n
d

M
o
i
s
t
u
r
e
,

E
B
11
9
,

P
o
r
t
l
a
n
d

C
e
m
e
n
t

A
s
s
o
c
i
a
t
i
o
n
,

S
k
o
k
i
e
,

I
l
l
i
n
o
i
s
,

a
n
d

N
a
t
i
o
n
a
l

R
e
a
d
y

M
i
x
e
d

C
o
n
c
r
e
t
e

A
s
s
o
c
i
a
t
i
o
n
,

S
i
l
v
e
r

S
p
r
i
n
g
,

M
a
r
y
l
a
n
d
,

U
S
A
,

2
0
0
8
,

1
7
6

p
a
g
e
s
.
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
���
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
�
or
t
l
a
n
d

C
e
m
e
n
t

A
s
s
o
c
i
a
t
i
o
n
.
Re
f
e
r
e
n
c
e
:

K
a
n
a
r
e
,

H
o
w
a
r
d

M
.
,

C
o
n
c
r
e
t
e

F
l
o
o
r
s

a
n
d

M
o
i
s
t
u
r
e
,

E
B
11
9
,

P
o
r
t
l
a
n
d

C
e
m
e
n
t

A
s
s
o
c
i
a
t
i
o
n
,

S
k
o
k
i
e
,

I
l
l
i
n
o
i
s
,

a
n
d

N
a
t
i
o
n
a
l

R
e
a
d
y

M
i
x
e
d

C
o
n
c
r
e
t
e

A
s
s
o
c
i
a
t
i
o
n
,

S
i
l
v
e
r

S
p
r
i
n
g
,

M
a
r
y
l
a
n
d
,

U
S
A
,

2
0
0
8
,

1
7
6

p
a
g
e
s
.
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.

Appendix C-2 Drago Wrap Barrier Product Specification Sheet & 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

Appendix C-3 Slotted PVC Pipe Product Specification Sheets

FERGUSON
3” SCH40 SLOTTED .060” wide x .375”
spacing x 3 rows @ 120

East Hwy 30
Paxton, Nebraska 69155
308-239-4281
Customer Signature Approval__________________
3” SCH40
120° Centers
Specifications 3” SCH40 OD – 3.50” Wall – 0.216” ID – 3.068” Weight – 1.458 lbs per foot
Slot Spacing Slot Width .375” .060”

Appendix C-4 Ventilator Specification Sheet

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

Appendix C-5 Monitoring Point Access Termination Specification Sheets

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

V
i
e
w

o
f

d
o
o
r

b
a
c
k
P A - 3 0 0 0 P R O D U C T IN F O R M A T I O N
PA3000 STANDARD SIZES
Nominal Door Size W&H Weight per Door
inches mm lbs. kg.
4 X 6 102 X 152 .5 .25___________________________________
6 X 9 152 X 229 .5 .25___________________________________
8 X 8 203 X 203 .5 .25___________________________________
12 X 12 305 X 305 .5 .25___________________________________
14 X 14 356 X 356 .75 .33___________________________________
14 X 29 356 X 737 4 1.87___________________________________
18 X 18 457 X 457 2.25 1___________________________________
22 X 22 559 X 559 4 1.87___________________________________
24 x 24 610 x 610 4.75 2.15___________________________________
Wall or ceiling opening is W + 3/8” ( 9 mm)
For detailed specifications see submittal sheet
FLUSH NONRATED Plastic Access Door
PA-3000
*22 x 22 and 24 x 24 sizes are
designed for wall installation only.
*
*
U.S.A.: [e-mail] / 800.722.0501 CANADA: [e-mail] / 844.228.3671 INTERNATIONAL: [e-mail] / 905.428.2240
MEXICO: [e-mail] / [phone] INDIA / MIDDLE EAST / NORTH AFRICA: [e-mail] / [phone] SITE: www.acudor.com
This document contains proprietary information which is the property of Acudor Products. It shall not be modified, copied, furnished, nor distributed (in whole or in part) without proper authorization. Copyright © 2020 Acudor Products.

Appendix C-6 Wal-Rich Corporation PVC Termination Screen

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

Appendix C-7 Soil Gas Collector Mat Product Information and Installation Guide

Soil Gas Collector Mat PDS 05-140-1
Safety data for our custom-formed, high-impact polystyrene core is shown below.
RECOMMENDED MAXIMUM OCCUPATIONAL EXPOSURE LIMITS
PHYSICAL DATA FIRE HANDLING MEASURES
ECOLOGICAL INFORMATION & DISPOSAL
Component CAS No. Exposure Limits Hazard Data
OSHA—Pel.
Polystyrene 9003-55-6 None established No hazardous ingredients
Properties Data
Form Molded Sheet
Color Black
Odor None
Boiling Point Not applicable
Melting Point (°F) 270
Flash Point (°F) Not applicable
Flammable Limits (°F) Not applicable
VOC 0%
Volatility <0.75% Moisture
Specific gravity 1.02–1.08
Solubility in Water Not soluable
Properties
Extinguishing Media
Fire Fighting Procedure
Properties
Ecological information
Toxicological
Disposal
Data
Water Spray (except when fire is of electrical origin), Foam, Dry powder, CO2
Self-contained breathingapparatus & suitable protective equipment
Data
Not associated with any
known ecological problems
No negative effects on
humans
Polystyrene recycles well.
Can be disposed of as
solid waste or burned
in a suitable installation
subject to local regulations.
Effluents disposal should
also be in accordance
with local legislation.
www.soilgasmat.com 719-444-0646 [e-mail]
Product Materials
& Safety Information
Made inthe USA
Perfect for Radon Control Systems in new home construction
The economical alternative to aggregate systems—quick and easy installation
STABILITY & REACTIVITY
SPECIAL HANDLING INFORMATION
Properties Data
Stablitity Stable
Incompatibility (Materials to avoid) Can react with strong oxidixers
Hazardous Decomposition Carbon dioxide, carbon monoxide, various hydrocarbons
Conditions to avoid None
Description Information
Handling & Storage Precaution Protect against flame & intense heat. Avoid breathing hot vapors.
Eye Protection, Recommended Use OSHA approved safety glasses when handling
Skin Wash with soap & water. Get medical attention if irritation develops
or persists.
Other Clothing & Equipment Gloves recommended due to sharp edges.
Work Practices, Hygiene Use standard work practices for hygienic safety.
Handling & Storage, Other Store in well-ventillated area. Avoid extreme heat & sources of ignition or
open flame.
Protective Measures, Maintenance Not applicable
www.soilgasmat.com 719-444-0646 [e-mail]
To the best of our knowledge, the information presented herein is accurate.However, it is not a warranty or a guarantee and is provided for reference only.
Soil Gas Collector Mat PDS 05-140-1
The economical alternative to aggregate systems—quick and easy installation
CUSPATED PLASTIC
COVER FABRIC
Material Physical Properties
Property Test Method Value
Specific Gravity (g/cc) ASTM D-792 1.04
Melt Flow @ 200°C/5000g (g/10 min) ASTM D-1238 2.5
Tensile Strength @ Yield (psi) ASTM D-638 2,900
Tensile Modulus (psi) ASTM D-638 275,000
Elongation @ Break (%) ASTM D-638 70
Flexural Modulus (psi) ASTM D-790 300,000
Impact Strength, Notched Izod @ 73°F (ft-lb/in) ASTM D-256 2.1
Heat Deflection Temperature @ 264 psi (°F) ASTM D-648 183
Vicat Softening Point (°F) ASTM D-1525 210
Property Test Method Value
Grab Tensile (lbs) ASTM D4632 130
Elongation (%) ASTM D4632 > 50
Trapezoid Tear (lbs) ASTM D4533 60
Puncture (lbs) ASTM D4833 41
Mullen Burst (psi) ASTM D3786 140
AOS (U.S. sieve number) ASTM D4571 70
Permittivity (sec-1) ASTM D4491 0.8
Permeability (cm/sec) ASTM D4491 0.04
Water Flow (gal/min/sf) ASTM D4491 60
UV Stability (%) ASTM D4355 70
www.soilgasmat.com 719-444-0646 [e-mail]
Product
Data Sheet
Made inthe USA
Perfect for Radon Control Systems in new home construction
The economical alternative to aggregate systems—quick and easy installation
www.soilgasmat.com 719-444-0646 [e-mail]
To the best of our knowledge, the information presented herein is accurate.However, it is not a warranty or a guarantee and is provided for reference only.
BINDING METHOD
Material Physical Properties CONTINUED
Property Test Method Value
External Binder Standard Sewn
Type Stitching Standard Lock Stitch
Type Thread Standard HB92 Nylon
Tensile Strength (lbs) ASTM D4632 11
Thread Gage Standard 2 IOx4 denier
Chemically Impervious Standard MI Natural
Soil Gas Collector Mat PDS 05-140-1
Safety data for our non-woven, spun-bonded, polypropylene, gray geotextile fabric is shown below.
PHYSICAL DATA FIRE HANDLING MEASURES
ECOLOGICAL INFORMATION & DISPOSAL
Properties Data
Form Molded Sheet
Color Black
Odor None
Boiling Point Not applicable
Melting Point (°F) 270
Flash Point (°F) Not applicable
Flammable Limits (°F) Not applicable
Auto ignition temperature Not applicable
Vapor Pressure (Pascal) Not volatile
Density (g/cm3) @20 ºC 0.91
Solubility in Water Not soluable
Thermal decomposition (ºF) Above 570
Properties
Extinguishing Media
Fire Fighting Procedure
Properties
Ecological information
Toxicological
Disposal
Data
Water Spray (except when fire is of electrical origin), Foam, Dry powder of CO2
Self-contained breathingapparatus & suitable protective equipment
Data
Not associated with any
known ecological problems
No negative effects on
humans
Polystyrene recycles well.
Can be disposed of as
solid waste or burned
in a suitable installation
subject to local regulations.
Effluents disposal should
also be in accordance
with local legislation.
www.soilgasmat.com 719-444-0646 [e-mail]
Product Materials
& Safety Information
RECOMMENDED MAXIMUM OCCUPATIONAL EXPOSURE LIMITS
Component CAS No. Exposure Limits Hazard Data
OSHA—Pel.
Polystyrene 9003-07-0 None established No hazardous ingredients
Made inthe USA
Perfect for Radon Control Systems in new home construction
The economical alternative to aggregate systems—quick and easy installation
STABILITY & REACTIVITY
SPECIAL HANDLING INFORMATION
Properties Data
Stablitity Stable
Incompatibility (Materials to avoid) Can react with strong oxidixers, base, or acid
Hazardous Decomposition Carbon dioxide, carbon monoxide, low molecular weight oxygenated organic
Conditions to avoid None
Description Information
Handling & Storage Precaution Avoid breathing hot vapors, oiled mists, and airborne fibers.
Eye Protection, Recommended Use OSHA approved safety glasses when handling rolls
Skin Wash with soap & water. Get medical attention if irritation develops
or persists.
Other Clothing & Equipment Not applicable
Work Practices, Hygiene Use standard work practices for hygienic safety.
Handling & Storage, Other Store rolls In accordance with good material handling practice
Protective Measures, Maintenance Not applicable
www.soilgasmat.com 719-444-0646 [e-mail]
To the best of our knowledge, the information presented herein is accurate.However, it is not a warranty or a guarantee and is provided for reference only.
Soil Gas Collector Mat PDS 05-140-1
Our non-woven, spun-bonded, polypropylene, gray geotextile fabric with the minimum
values shown below.
www.soilgasmat.com 719-444-0646 [e-mail]
Product Materials—
Technical Specifications
& Performance
Property Test Method Value
Grab Tensile Strength (lbs) ASTM D 4632 130
Elongation (%) ASTM D 4632 >50
Trapezoid Tear (lbs) ASTM D 4533 60
Puncture (lbs) ASTM D 4833 41
Mullen Burst (psi) ASTM D 3786 140
AOS (U.S. sieve no.) ASTM D 4751 70
Permittivity (sec-1) ASTM D 4491 0.8
Permeability (cm/sec) ASTM D 4491 0.04
Vertical Water Flow Rate (gal/min/sf) ASTM D 4491 60
UV Stability (%) ASTM D 4355 70
Made inthe USA
Soil Gas Collector Mat PDS 05-140-1
Our custom-formed, high-impact polystyrene core with the minimum values shown below.
www.soilgasmat.com 719-444-0646 [e-mail]
Product Materials—
Technical Specifications
& Performance
Properties Test Method Value
Specific Gravity ASTM D 792 1.04
Melt Flow (g/10min) ASTM D 1238 2.5
Tensile @ Yield (psi) ASTM D 638 2900
Tensile Modulus (psi) ASTM D 638 275,000
Elongation @ Break (%) ASTM D 638 70
Flexural Modulus (psi) ASTM D 790 300,000
Notched Izod @ 73ºF (ft-lb/in) ASTM D 256 2.1
HDT @ 264 psi (ºF) ASTM D 648 183
Vicat Softening Point (ºF) ASTM D 1525 210
Made in
the USA
SOIL GAS COLLECTOR MAT
Installation Guide
Radon Ready New Construction
Time-saving, low-cost solution
Easy Installation
Reduce Liability!
Used in all 50 states and
Internationally
Compliant under multiple codes:
AARST-ANSI, ASTM,
IRC Appendix F,
EPA, HUD, and more!
Simple, modern solution for soil
gases: radon, vapor, and VOCs
www.RadonMat.comPhotos, videos, & more @
MADE IN THE USA
SOIL GAS COLLECTOR MAT FOR RADON READY NEW CONSTRUCTION
According to the US EPA’s model stan-dards for radon control systems in new building construction, a means for col-lecting soil gas should be installed be-neath the slab.
More and more mitigators and buildiers are using PDS’ soil gas collector mat because its installation does not entail any special coordination with plumb-ers or other site contractors. Low pro-file mat saves time as it removes the need for trenching. Just lay radon mat down around the inside perimeter of the foundation, secure it with spikes or landscaping staples, and pour the con-crete.
SGC mat is superior to other mat sys-tems because of its thickness and it has a geotextile fabric cloth surround-ing the entire mat material. This fea-ture eliminates the need to lay a plas-tic barrier or sheet on top of the mat to protect the matrix. Using plastic sheeting can cause concrete cracking due to differential dewatering. The full fabric design greatly enhances both the installation as well as the quality of the concrete slab. When SGC mat is in-stalled below the slab, you’re providing an airspace that intercepts radon--and other soil gases and vapors--before it seeps into the building through the slab. SGC mat also works well as a soil gas collector beneath crawlspace bar-rier due to its low-profile.
WHY & HOW IT WORKS
The matting is a one inch high by twelve inch wide matrix enveloped in a geotextile filter fabric. 90% of the geomatrix is airspace, which means soil gas has room to move to the col-lection point. This creates incredible pressure field extension for post con-struction system activation. The mat can support concrete without com-pressing, yet is extremely lightweight and easy to handle.
This system allows for radon to flow through the filter fabric and into the airspace. The airspace does not clog because the filter fabric retains the underlying gravel and soil. The natural airflow through the mat then channels the radon to the T riser to pipe connec-tion. From there, hazardous gas can be vented safely through the roof of the building.
Another key element of a soil gas col-lection system is attaching the 4” riser to the mat, such that airflow is not restricted at this critical juncture. The soil gas T riser is unique as it has three ports, two redundant mat entries and one PVC connection to outside air. This unique fitting connects all three sides without special connections or fittings. common duct tape and caulk does the trick. 2
ADVANTAGES
NO TRENCHINGNO BACKFILLNO VAPOR BARRIER*

It’s called SOIL gas mat for a reason, Place directly on soil or substrate.
Low-profile (1” thick) gas mat does not require trenching.
SAFETY DATA & PRODUCT DATA SHEETS AVAILABLE @ www.RADONMAT.com 3
INSTALLATION INSTRUCTIONS
1. Begin work on the sub grade (soil or gravel) after the final preparation and
before the concrete is poured. Start with T-Riser(s) and work out to ensure
smooth mat placement. Position the T-Riser(s) in appropriate location(s) and
nail down with a 12” steel nail (T Nail) through precut center hole.
2. Slide mat into flat openings on either end of T-riser with a portion of the fab-
ric around the outside. Tape the fabric to the outside of the T-Riser with duct
tape and staple mat to the ground with landscape staples to ensure soil contact
remains during pour stage.
3. Mat is typically laid out in a rectangular loop in the largest area with branch-
es or legs into smaller areas (FREE plan design at www.radonmat.com). There
is no need to trench the mat. Roll out the SGC mat, smooth it onto the ground.
To avoid wrinkles and buckling, work away from the risers, stapling to the
ground as you go. The mat should be stapled every three to four feet, in addi-
ton to corners, tee junctions & ends.
5. Corners are constructed by peeling back the filter fabric, cutting two ends
of the matrix at 45 degree angles and butting (or overlapping: no more than
1/2”) the matrix together. Pull the filter fabric back and tape into place. Staple
across the joint of the matrix and each leg of the corner. Use a minimum of
four staples at each corner-- two across the joint and one on each leg.
6. The tees for branches and legs are constructed by slitting the fabric of the
main loop at the location desired. Cut the fabric of the branch at the edges and
expose two inces of the matrix. Cut off the exposed matrix and but the ma-
trix of the branch (or overlap 1/2”)to the matrix of the main loop. Pull the flter
fabric of the branch back over the main loop and tape into place. Staple across
joint of the matrix with two staples and one each on the branch and main loop.
Use a minimum of four staples at each tee, two across the joint and one on
each loop and branch.
4
7. All openings in the fabric at joints, tee’s, and ends of branches should be
taped to keep out concrete.
8. Stub up a few feet of 4” schedule 40 PVC* from all T risers before pour (or
cover T riser with duct tape). Seal with polyurethene caulk and screws. This
ensures no concrete aggregate enters the riser during slab pour. Be sure to
label “CAUTION RADON REDUCTION SYSTEM” on all pipe. *(6” PVC may be
substituted--for large multifamily projects. Simply cut T riser 4” insert away to
reveal 6” insert).
9. When the building is ready for the vent pipe to be installed above the slab,
fit to pre-stubbed PVC with PVC straight connect. If PVC was not preset, cut
duct tape from riser and insert 4” PVC pipe now. Seal with polyurethene caulk
and secure with screws. Always label “CAUTION RADON REDUCTION SYSTEM”
to avoid confusion on site and for the building occupants.
NOTE: The openings in the riser are laid out at 180 degrees to accomodate
straight runs of mat. However, if the riser is to be placed in a corner, which is
not uncommon, the front of the T can be cut and the SGC mat inserted into
the new opening. The side of the T that is unused should be sealed with tape.
This creates a 90 degree T which will allow corner placement for the riser. Mat
should always enter the T riser from at least two directions and exhaust to pipe
vertically.
SAFETY DATA & PRODUCT DATA SHEETS AVAILABLE @ www.RADONMAT.com 5
MAKING CORNERS AND SPLICES
The mat should be routed around the inside perimeter of the foundation. This
will require occasional corner junctions. Furthermore, splices will have to be
made to join two lengths of mat together. Corners and splices are very easy to
make, and do not require any special fittings. Cut back the filter fabric to reveal
the core material. In the case of a splice, merely overlap the core by at least
one corrugation, replace the cloth, and tape it. Use two landscape staples to
hold the splice in place. In the case of a corner, peel back geotextile fabric and
slice the core of the two adjoining legs at 45 degree angles which mirror each
other; overlap the edges by one corrugation; return grey geotextile fabric, tape
and staple the corner together.
6
CONNECTING THE MAT TO THE
T RISER
A convenient T-riser with dual entry al-
lows for either end of the loop of mat
to be secured to the riser. Slide the mat
into each end of the riser and tape the
edge to prevent wet concrete from en-
tering. Cap the riser to ensure no con-
crete enters. T Riser caps can be pur-
chased in lieu of duct tape. A prestub of
PVC pipe can also serve the same pur-
pose. See steps 8-9 above.
***Due to high product demand, several T riser de-signs have been tested and approved for sale. Your
riser may look different than the one pictured here,
however its function is the same. Ensure you stub
up the PVC pipe and seal all openings with tape so
that concrete does not enter during the pour. Se-cure mat to the ground with staples so riser does
not float.
7
FLAT OUTLET
SGC to PVC transition
SIDE VIEW GOING THRU FOOTER/ INTERMEDIATE WALL
SOIL GAS MAT SOIL GAS MAT
PVC PIPE
FOOTER/INTERMEDIATE WALL/ TRENCH
Soil Gas Mat
TOP VIEW GOING OVER FOOTER/WALL/TRENCH
GRAVEL OR SOIL UNDER MAT
Soil Gas MatSoil Gas Mat 4” sch. 40 PVC PIPE
GRAVEL OR SOIL UNDER MAT
TR
E
N
C
H
TR
E
N
C
H
TRENCH & FOOTER CROSSINGS
IDEAL FOR LONG SPANS8
STEEL SLEEVE
24” (36”) x 1” x 12”
SIDE VIEW GOING THRU FOOTER/ INTERMEDIATE WALL
SOIL GAS MAT SOIL GAS MAT
PVC PIPE
FOOTER/INTERMEDIATE WALL/ TRENCH
Soil Gas Mat
TOP VIEW GOING OVER FOOTER/WALL/TRENCH
GRAVEL OR SOIL UNDER MAT
Soil Gas MatSoil Gas Mat
GRAVEL OR SOIL UNDER MAT
TR
E
N
C
H
TR
E
N
C
H
STEEL SLEEVE
available in 24” or 36”
STEEL SLEEVE 1” thick
IDEAL SHORT TRENCHES 9
POURING CONCRETE
The filter fabric that comes sewn around the soil gas collector prevents the wet
concrete from entering the mat and reducing its air collection capacity. The
only precaution that needs to be taken is that the fabric is duct taped closed at
seams of splices and corner to sufficiently keep the uncured concrete from en-
tering.
The mat also needs to be secured to the soil with landscape staples to prevent
the concrete from lifting off the soil while it is being applied. Re-enforcing bars
and wire can be laid on top of the mat.
Note: the mat is strong enough (4,300 psf) to withstand concrete workers and
their wheel barrows.
10
radon risk
radon-induced lung cancer claims the lives of over 22,000 Americans each year
FACT: Radon is found at dangerous levels in all 50 US states. The EPA action level is 4.0 pci/L or higher
FACT: All US Homes have high radon potential, even those without basements
FACT: Radon is the leading cause of lung cancer among “never smokers”
FACT: Radon is a nobel gas and a natural part of the Uranium 238 breakdown chain
FACT: Breathing 6.2 pci/L is the equivalent radiation dosage of a THREE chest x-rays each week for your lungs
FACT: Radon is colorless, odorless, and invisible to the naked eye
FACT: Radon testing is cheap and you can do it yourself!

get the facts @
www.RadonReality.com

Appendix D

Site-Specific VOC List

SIte-Specific VOC List
Former Press Club Cleaners
Alexan LoSo
Charlotte, North Carolina
Brownfields Project No.
25101-21-060 H&H Job No. TCR-003
Select VOCs by EPA Method TO-15
Acetone
Benzene
Bromodichloromethane
1,3-Butadiene
2-Butanone (MEK)
Carbon Disulfide
Carbon Tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane
Chloroform
Chloromethane
Cyclohexane
Dichlorodifluoromethane
1,1-Dichloroethene
cis-1,2-Dichloroethylene
trans-1,2-Dichloroethylene
1,2-Dichloropropane
2-Hexanone
Ethanol
Ethyl Acetate
Ethylbenzene
4-Ethyltoluene
n-Heptane
n-Hexane
Isopropanol
Methyl tert butyl ether (MTBE)
Methylene Chloride
Methyl isobutyl ketone (MIBK)
Naphthalene
Propene
1,1,2,2-Tetrachloroethane
Tetrachloroethylene
Toluene
1,1,1-Trichloroethane
Trichloroethylene
Trichlorofluoromethane
1,1,2-Trichloro-1,2,2-trifluoroethane
1,2,4-Trimethylbenzene
1,3,5-Trimethylbenzene
Vinyl Chloride
m&p-Xylene
o-Xylene
Xylenes (total)
VOCs = volatile organic compounds
https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Trammell Crow Residential - TCR/TCR-003 Press Club Cleaners/VIMP/Site-Specific Indoor Air VOC List
9/28/2022
Attachment D
Hart & Hickman, PC