18038_AquAir II Vapor Intrusion Mitigation Plan-West Side_20220113

Via Email
January 13, 2022 NCDEQ – Division of Waste Management Brownfields Program
1646 Mail Service Center Raleigh, NC 27699-1646 Attn: Mr. Kelly Johnson

Re: Vapor Intrusion Mitigation Plan AquAir II Brownfields Site – West Side 13300 Sam Neely Road
Charlotte, North Carolina Brownfields Project No. 18038-14-060 H&H Project No. TKC-008
Dear Mr. Johnson: On behalf of TKC Land Development, LLC, please find the enclosed Vapor Intrusion Mitigation Plan (VIMP) prepared for the proposed redevelopment on the west side of the AquAir II Brownfields property located in Charlotte, Mecklenburg County. Should you have questions or need additional
information prior to providing approval, please do not hesitate to contact us at [phone]. Sincerely,
Hart & Hickman, PC
Alexis McKenzie, PE Christie Zawtocki, PE Project Engineer Principal Engineer
Enclosure cc: Mr. Robert Combs, The Keith Corporation (Via Email)

Vapor Intrusion Mitigation Plan
HD Charlotte

AquAir II Brownfields Site – West Side
13300 Sam Neely Road
Charlotte, North Carolina
Brownfields Project No. 28038-14-060

H&H Job No. TKC-008
January 13, 2022

#C-1269 Engineering #C-245 Geology
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Vapor Intrusion Mitigation Plan HD Charlotte Charlotte, North Carolina Brownfields Project No. 18038-14-060 H&H Job No. TKC-008

Table of Contents

1.0 Introduction ................................................................................................................ 1
2.0 Design Basis ................................................................................................................ 4
3.0 Quality Assurance / Quality Control ........................................................................ 7
4.0 Post-Construction System Effectiveness Testing .................................................... 8
5.0 Post-Occupancy Testing .......................................................................................... 14
6.0 Future Tenants & Building Uses ............................................................................ 15
7.0 Reporting .................................................................................................................. 16

Figures Figure 1 Site Location Map
Figure 2 Site Map
Appendices
Appendix A HD Charlotte Development Plan
Appendix B Summary Tables and Sample Location Map
Appendix C Vapor Intrusion Mitigation Plan – VM-1, VM-2, VM-3, and VM-4
Appendix D Vapor Intrusion Mitigation System Product Specifications

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Vapor Intrusion Mitigation Plan HD Charlotte Charlotte, North Carolina Brownfields Project No. 18038-14-060 H&H Job No. TKC-008

1.0 Introduction
On behalf of TKC Land Development II, Inc. (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) for the proposed HD Charlotte distribution warehouse on the
west side of the AquAir II Brownfields Property (Brownfields Project No. 18038-14-060) located
at 13300 Sam Neely Road in Charlotte, Mecklenburg County, North Carolina (Site). The
Brownfields property consists of two contiguous parcels, totaling approximately 154 acres, which
are separated by the Southern Railway. The Site consists of the portion of the Brownfields
property to the west of the railway, which includes one approximately 76-acre parcel located in a
rapidly densifying residential and commercial use area along the Interstate-485 loop. A Site
location map is provided as Figure 1, and the Site and surrounding area are shown in Figure 2.

Former operations at the Site consisted of 1) vanadium catalyst manufacturing from 1965 to 1972,
2) solvent recovery, reclamation, and blending from 1974 to 1984, 3) bulk chemical repackaging
from 1974 to 1976, and 4) laboratory services and chromium compound manufacturing from 1977
to 1988, and was vacant thereafter. Redevelopment plans include the construction of an industrial
warehouse building with associated exterior material storage areas, trailer loading and storage
areas, guard shack, and parking. In addition, stormwater management ponds will be constructed
on the northern portion of the Site. Proposed redevelopment plans are included in Appendix A.

In the early 1990s, soil contamination was identified and the Site was subsequently listed as a
North Carolina Inactive Hazardous Site (AquAir Corporation Site, NCD074511361). In 1999,
stabilization measures were conducted at the Site including the removal of vanadium pellets,
debris, and a septic tank system. The on-Site buildings were demolished in approximately 2000.
Soil samples collected from 1990 through 2003 indicate metals and chlorinated solvent compounds
are the primary constituents of interest in soil. The Brownfields agreement for the Site designates
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an “Area of Potential Soil Contamination” where soil impacts are present on the Site. Summary
tables and a sample location map are included in Appendix B.

Groundwater sampling was performed at the Site beginning in the early 1990s. Former remediation
efforts included the operation of a pump and treat groundwater recovery system and a network of
air sparge wells. On-Site groundwater is impacted by VOCs and metals at concentrations
exceeding the North Carolina Administrative Code (NCAC) 02L.0202 Groundwater Quality
Standard (2L Standard) and/or the DEQ Division of Waste Management (DWM) Non-Residential
Groundwater Screening Levels (GWSL). In October 2011, Hart & Hickman, PC performed a soil
gas investigation at the Site within the Limits of Groundwater Contamination, as depicted on the
Brownfields Plat, and supplemental soil gas sampling was conducted outside the Limits of
Groundwater Contamination on behalf of a potential purchaser of the Site in January 2016. The
results indicated that VOCs were detected at concentrations exceeding the DEQ IHSB Non-
Residential Soil Gas Screening Levels (SGSLs) in samples collected within the Limits of
Groundwater Contamination.

In accordance with the recorded Brownfields Agreement, the PD will install a passive vapor
intrusion mitigation system in the proposed warehouse building and guardhouse during
redevelopment activities. Installation of the VIMS will satisfy the following Land Use Restriction
(LUR) which is included in the Brownfields Agreement:

No building may be constructed on the Brownfields Property, unless and until DENR
determines in writing that:
i. the building would be sufficiently distant from (1) the Brownfield’s Property’s known
groundwater and/or soil contamination (2) and potential off-site sources that are migrating
on-site that the building’s users, public health and the environment will be protected from
risk from vapor intrusion related to soil contamination; or
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
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ii. a plan for a vapor intrusion mitigation system, approved in writing by DENR in advance
and including, a proposed performance assessment for demonstration of the system’s
protection of the building’s users, public health, and the environment from risk from vapor
intrusion, is implemented to the satisfaction of a North Carolina-licensed professional
engineer as reflected by implementation documentation sealed by said engineer.

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:

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2.0 Design Basis

The VIMP is included in Appendix C (Sheets VM-1, VM-2, VM-3, and VM-4) and will be used
to guide construction of the VIMS. The proposed Site redevelopment plan (Appendix A) includes
one industrial warehouse building, one guardhouse, and one fire pumphouse. The guardhouse is
approximately 140 square feet (sq ft) and will be constructed with slab on grade exterior foundation
footings. The industrial warehouse is approximately 403,200 sq ft and will be constructed with
concrete slab-on-grade foundation and structural columns throughout the interior. In order to meet
the load requirements for the forklifts and storage on the warehouse slab, the proposed building
slab will be constructed on compacted ABC-stone and incudes a rail spur in the northern portion
of the building for loading. The fire pumphouse is approximately 495 sq ft and will contain
mechanical systems for the Site. The pumphouse will be accessible to maintenance only and does
not contain any office or long-term occupiable space. Due to the building use for minimal
maintenance access only, as a conservative approach, the VIMP includes vapor barrier below the
fire pumphouse slab as shown on VM-4.

The VIMP includes installation of Vaporblock® Plus 20 (VBP20) vapor barrier manufactured by
Raven Industries (Raven) beneath the concrete slab of each building. VBP20 is an ASTM-certified
20-mil, multi-layer, chemically resistant vapor barrier, designed to prevent the migration of VOCs.
Technical specifications and installation instructions obtained from Raven for the VBP20 vapor
barrier are provided in Appendix D.

The VIMP specifies that the vapor barrier will be installed per manufacturer installation
instructions (Appendix D). Briefly, VBP20 will be installed by the construction contractor to
cover the ground surface below the entire area of the proposed warehouse and guardhouse
buildings. The exterior edges of the VBP20 will be attached and sealed to existing concrete
utilizing VaporSeal™ tape or Butyl Seal 2-sided tape. Seams within the building footprint will
have a minimum 12-inch overlap and will be sealed with VaporSeal™ tape with the option of
supplementing the seal with 2-sided Butyl Seal tape. Small puncture holes will be sealed with
VaporSeal™ tape or Pour-N-Seal™, and larger holes, tears, or damage will be repaired using a
patch that overlaps the damaged area and then will be taped along the seams. In areas where utility
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penetrations (i.e., piping, ducts, etc.) are present and the use of taping is not practical or deemed
as “ineffective” by the design engineer, the Pour-N-Seal™ method will be used to form an airtight
seal around the penetrations. Locations where Pour-N-Seal™ is used will be documented during
the field inspections and noted on the as-built drawings.

Note that other vapor barrier bonding products (i.e., tapes, epoxies, etc.) that do not contain
compounds of concern for the Site and are approved by the engineer and by the vapor barrier
manufacturer may be used to seal the liner. Please also note that an equivalent vapor barrier
approved by the engineer which meets the criteria specified in Sheet VM-1 of the VIMP may also
be used by the installation contractor, such as Drago Wrap® manufactured by Stego Industries. If
Drago Wrap® is selected for use, DEQ will be notified in writing and specification and installation
instruction sheets will be provided. In the event that alternate equivalent vapor barrier bonding
products or vapor barrier liner (other than VBP20 or Drago Wrap®) are selected, DEQ approval
will be requested in writing prior to installation.

The VIMP also includes installation of an enhanced passive mitigation system beneath the building
slabs to reduce the potential for vapor intrusion into the proposed buildings by vapor extraction.
Vapor extraction will be accomplished using wind-driven turbine ventilators, vapor
collection/conveyance piping, and slotted PVC piping to collect vapor from beneath the slab of
the building and discharge the vapor through exhaust stacks installed above the building roofs.
Product specifications for the turbine ventilators and slotted piping are included in Appendix D.

The VIMP includes Empire Model TV06SS (stainless steel) turbine ventilator fans (or a design
engineer approved alternate) installed on the discharge end of the exhaust stacks on the roof. The
exhaust discharge locations shall be a minimum of 10 feet from any operable opening or air intake
for the building and a minimum of 2 feet above the roofline. For system redundancy, the vent
systems below the slab-on-grade warehouse building are interconnected. The interconnected
systems will allow for continued sub-slab depressurization below the building slabs in the event
that active fans are installed in the future or a turbine ventilator is damaged between yearly
inspections completed by building maintenance.

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To enhance sub-slab vapor transmission and collection effectiveness, a uniform layer of high
permeability stone (clean #57 or similar stone) will be installed directly below the compacted ABC
stone required below the warehouse concrete slab, to allow for air movement beneath the entirety
of the slab. Sub-slab vapor collection piping (3-inch diameter) will be installed within the high
permeability stone layer. The thickness of the high permeability stone around the piping will
extend a minimum of 1-inch below the sub-slab piping and a minimum thickness of 4 inches of
clean stone is required below the entire slab. Alternate sub-slab collection piping including 3”
perforated PVC pipe, soil gas collector mat, or similar with comparable characteristics to the
slotted piping may be approved by the design engineer. DEQ will be notified in writing if an
alternative piping is selected.

In the event the system needs to be activated with electric fans (see Section 4.0), the VIMP includes
vacuum measuring points (depicted in Sheets VM-3 and VM-4). The vacuum measuring points
will be used to measure the pressure differential between indoor air and the sub-slab, should
electric fans be needed. To prevent disrupting building operations in the future and reduce the
likelihood that the access ports will be covered, the vacuum measuring point access ports are
located in areas along columns and the building edges (see Sheets VM-3 and VM-4 in Appendix
C).

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3.0 Quality Assurance / Quality Control

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

• after installation of horizontal collection system and gravel base placement;
• after vapor barrier installation and prior to pouring the concrete building slab and the
elevator pits; and
• after installation of vertical exhaust riser pipe and ventilator fan installations.

Please note that a fourth inspection 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 logs and photographs for each
section of slab. Locations where multiple penetrations are present and where Pour-N-Seal™ is
used will be photographed, noted on the field logs, and shown on the as-built drawings. The use
of hollow piping by contractors to support their utilities in preparation for concrete pours is not
permitted. Contractors will be instructed to remove any hollow piping observed during the field
inspections. If requested, the engineer certifying the report, or designee, will provide DEQ with
48 hours’ notice prior to conducting the inspections.

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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. 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 permanent and temporary vacuum measuring points for the section of slab
being evaluated.

The results of the influence test will be submitted to DEQ with the construction completion report.
If modifications to the VIMS are required to achieve vacuum influence of 4 pascals (0.016-inches
water column), additional influence testing will be completed to evaluate the system modifications.
Sub-Slab Gas Sampling
Upon completion of successful influence testing and prior to occupancy of the Site building, sub-
slab soil gas samples will be collected from beneath the warehouse and guardhouse to determine
if follow-up indoor air sampling is warranted. The sub-slab soil gas samples will be collected from
each of the permanent vacuum measuring points as shown on Sheet VM-3 and VM-4 in Appendix
C. Sub-slab soil gas sampling will be completed as outlined below.

Eleven sub-slab samples will be collected from the warehouse and one sub-slab sample will be
collected from the guardhouse. The initial sub-slab soil gas sampling event will be conducted after
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 (i.e., an Ex-Cap) into the
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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 in 1-liter Summa canisters at an approximate flow
rate of 100 mL/min. 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), and ideally around 5 in Hg, to allow for proper laboratory analysis of the sample.

Although 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, DEQ is requiring sub-slab samples be analyzed for the full list of
VOCs. 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 full list of VOCs by EPA Method TO-15.
The laboratory will be instructed to report J-flag concentrations for each sample, to report received
canister vacuum, and to include naphthalene in the TO-15 analyte list. In addition, H&H will
request that the laboratory report compound concentrations to the lower of the laboratory method
detection limits or the DEQ DWM Non-Residential Vapor Intrusion SGSLs.

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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 non-residential
use scenario based on the proposed industrial warehouse 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, the PD will request DEQ provide occupancy
approval.

Post-occupancy sub-slab soil gas sampling will be completed approximately 6 months following
the pre-occupancy sampling event and then on a semi-annual basis for future events. The sub-slab
sampling events will be completed using the methods discussed above. If semi-annual sampling
results indicate consistent or decreasing concentrations within acceptable risk levels, a request to
modify or terminate sampling will be submitted for DEQ approval.

Note that the generic sub-slab soil gas to indoor air attenuation factor that is the basis for DEQ risk
calculations is very 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.

In the event that calculated cumulative risks for the sub-slab samples are greater than 1x10-4 for
potential carcinogenic risks and/or above a hazard index of 1 for potential non-carcinogenic risks,
indoor air sampling will be completed, as described below. Please note that prior to proceeding
with indoor air sampling the sub-slab soil gas data will be reviewed to confirm that background
sources (e.g., building materials) are not influencing cumulative risks. If background sources are
identified and confirmed, DEQ will be notified and indoor air sampling will not be performed with
written DEQ approval.

The results of sub-slab vapor sampling completed at the Site will be reported to DEQ, as described
in Section 7.0. The building shall not be occupied until the results of the initial, pre-occupancy
sub-slab gas sampling are submitted to DEQ and written approval for occupancy is obtained from
DEQ.
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Indoor Air Sampling (if warranted)
The building is intended to be occupied shortly following completion and initialization of the
HVAC system; therefore, the indoor air sampling event (if warranted) will be conducted following
construction and completion of the VIMS including a minimum of one week with operational
turbine ventilators. If indoor air sampling is required, the locations and number of indoor air
samples will be chosen based on sub-slab sampling analytical data and discussions between H&H
and DEQ. H&H will obtain DEQ approval, prior to proceeding with the indoor air sampling.

Each indoor air sample will be collected in accordance with the DWM VI Guidance, using a 6-
liter individually-certified Summa canister over an 8-hour period and analyzed for select VOCs by
EPA Method TO-15. The VOCs for the select analyte list will be determined based on the
compounds detected within the sub-slab soil gas samples, and per discussion between H&H and
DEQ. 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. In addition, the laboratory will be requested to report results to reporting limits below
the DEQ Non-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.
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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). Active fans will be installed as part of the VIMS and follow-up sampling will be
performed after installation of the fans should results of confirmation indoor air samples
indicate that passive treatment is inadequate (in the case where calculated cumulative risks
continue to be 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.

If additional indoor air sampling is required, modifications to the existing system will first be
evaluated to increase effectiveness (i.e., increasing the size of passive wind-driven turbine fans).
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Should results of post-construction indoor air testing continue to indicate potential unacceptable
vapor intrusion risks to occupants of the building(s), active fans will be installed at the discharge
end of the riser duct piping (as needed) to convert the system from passive to active sub-slab
depressurization. DEQ will be notified of alterations to the system(s). If the system is 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 Sampling Reporting
The results of the sub-slab gas sampling and indoor air sampling (if warranted) will be submitted
to DEQ with the construction completion report(s) for each proposed building. If additional indoor
air sampling is required based upon the recommendations above, a report of the indoor air sampling
will be submitted to DEQ following completion of the sampling and receipt of the analytical data.

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 (if warranted) 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 24 hours (1 business day) of receipt of the laboratory data if TCE is detected at a
concentration exceeding 8.8 µg/m3 (if indoor air is collected). 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.

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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 turbine ventilators on 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 post-construction and pre-occupancy sub-slab gas and/or indoor air assessment results, vapor
mitigation system modifications and plans for additional indoor air sampling and 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 D. However, a different fan
may be specified by the design engineer based on the influence testing results.

As discussed above, post-occupancy sub-slab soil gas sampling will be completed approximately
6 months following the pre-occupancy event and on a semi-annual basis for future events. The
sampling events will be completed using the methods discussed above. If semi-annual event
results indicate consistent or decreasing concentrations within acceptable risk levels, a request to
modify or terminate sampling will be submitted for DEQ approval.

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6.0 Future Tenants & Building Uses

The future use of the proposed Site buildings includes industrial warehousing and distribution.
After occupancy of the Site building, the building maintenance department will maintain the vapor
mitigation piping and ventilators. If vapor mitigation components are damaged or need to be
altered for building renovations, the maintenance department shall contact a North Carolina
licensed Professional Engineer to oversee and inspect the activities, and a report shall be submitted
to DEQ detailing the repairs or alterations. To aid in identification of the vapor mitigation piping,
the piping will be labeled with “Vapor Mitigation – Contact maintenance”, or similar language, on
all accessible piping at intervals of no greater than 10 linear feet.

Future VIMS maintenance and upkeep will be the responsibility of the property management group
or building owner. As part of the annual Land Use Restriction Update submittal, H&H
recommends the building owner or management complete a visual inspection of the exposed
components of the system including, but not limited to, the vertical risers and ventilators on the
roof and the monitoring points. H&H recommends annual inspections be documented and kept
on record.

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7.0 Reporting

A construction completion report (sealed by a NC-licensed PE) that documents installation
activities associated with the VIMS will be submitted to DEQ following confirmation that the
mitigation system is installed, effective, operating properly, and protective of human health from
potential vapor intrusion of known Brownfields property contaminants. The report will include a
summary of VIMS installation activities, quality assurance and quality control measures, pre-
occupancy system effectiveness testing including sub-slab and indoor air (if warranted) assessment
results, inspection photographs (including locations of penetration banks), SDSs, as-built
construction drawings, and an opinion as to whether the VIMS was installed in accordance with
the DEQ-approved VIMP. Multiple reports may be submitted depending on the construction
schedule of the buildings.

Prior to occupancy of the buildings, the results of the influence testing, sub-slab vapor sampling,
and indoor air sampling (if warranted) will be submitted to the Brownfields Program. The building
shall not be occupied until DEQ provides written approval.

After each additional post-construction sub-slab vapor sampling event (and indoor air sampling, if
completed), a brief report will be submitted to DEQ to document the sampling activities and
results.

Figures
BROWNFIELDS
PROPERTY
0 2000 4000
APPROXIMATE
SCALE IN FEET
N
U.S.G.S. QUADRANGLE MAP
QUADRANGLE
7.5 MINUTE SERIES (TOPOGRAPHIC)
CHARLOTTE WEST, NORTH CAROLINA, 1996
TITLE
PROJECT
SITE LOCATION MAP
AQUAIR II BROWNFIELDS SITE - WEST SIDE 13300 SAM NEELY ROAD
CHARLOTTE, NORTH CAROLINA
DATE:
JOB NO:
REVISION NO:
FIGURE:
10-28-21 0
1TKC-008
CR
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
FD
EF
L
CRCR
CR
REVISION NO. 0
JOB NO. TKC-008
DATE: 10-4-21
FIGURE NO. 3
AQUAIR II BROWNFIELDS SITE - WEST SIDE
13300 SAM NEELY ROAD
CHARLOTTE, NORTH CAROLINA
SITE MAP
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
SITE BOUNDARY
LIMITS OF GROUNDWATER CONTAMINATION
RAILROAD TRACKS
SURFACE WATER FEATURE
FENCE LINE
PROPOSED BUILDING
FOOTPRINT
AREA OF POSSIBLE SOIL
CONTAMINATION
SAM NEELY ROAD
ALRO STEEL CORP.
(12933 SAM NEELY ROAD)
FORMER REMEDIATION
SYSTEM BUILDING
LAZY OAK LANE
RESIDENTIALRESIDENTIAL
TEXAS PIPE & SUPPLY CO.
(12910 SAM NEELY ROAD)
EXISTING STAPLES
WAREHOUSE BUILDING
STORMWATER MANAGEMENT
POND
SOURCES
1.SITE PLAN PROVIDED BY BURTON ENGINEERING.
2.BASE MAP OF THE HISTORICAL FEATURES FROM
S&ME, REMEDIAL INVESTIGATION REPORT,
OCTOBER 2011.
3.AERIAL PHOTOGRAPH FROM MECKLENBURG
COUNTY GIS.
FORMER
PRODUCTION
BUILDING
FORMER
LAB
BUILDING
FUTURE
CAROWINDS
BOULEVARD

Appendix A HD Charlotte Development Plan

HD CHARLOTTE BDC FDC403,200 SF195' - 0"420' - 0"280' - 0"195' - 0"960' - 0"445' - 3"SITE BOUNDARYSITE B O U N D AR YSITE BOUNDARYC A R O W I N D S B L V D44 TRAILER SPACES39 TRAILER SPACES5 FDC DOCK DOORS13 TRAILER SPACES2-BAY TARPING STRUCTURE5 BDC DOCK DOORS9 TRAILER SPACES 26 TRAILER SPACES23 TRAILER SPACES23 TRAILER SPACES26 TRAILER SPACES33 FUTURE TRAILER SPACES60' - 0"135' - 0"198 AUTO PARKING60' - 0"135' - 0"TRUCK SCALEA-1081A-10338' HIGH CHAIN-LINK FENCE WITH 3 STRANDS BARB WIRE -TYP. -SEE/6A-1028' HIGH CHAIN-LINK FENCE WITH 3 STRANDS BARB WIRE -TYP. -SEE/6A-1028' HIGH CHAIN-LINK FENCE WITH 3 STRANDS BARB WIRE -TYP. -SEE/6A-1028' HIGH CHAIN-LINK SWING GATE WITH 3 STRANDS BARB WIRE AT RAILROAD TRACK -SEE/1A-1038' HIGH CHAIN-LINK SWING GATE WITH 3 STRANDS BARB WIRE AT RAILROAD TRACK -SEE/1A-1036' HIGH BLACK VINYL COATED CHAIN-LINK FENCE AT ASSOCIATE PARKING -TYP. -SEE/7A-102DETENTIONDETENTION5 TRAILER SPACES4 TRAILER SPACES12 FDC DOCK DOORS1 TRAILER SPACES21 FUTURE TRAILER SPACESDETENTIONA-10210A-1029A-1028OUTDOOR STORAGE289,207 S.F.PROPANE PLATFORMHIGH SPEED AND DRIVE-IN DOORSFHRAIL STOP -BY OTHERSGENERATOR AND TRANSFORMER LOCATIONS -SEEFHFHFHFHFHFHFHFH/2A-105INBOUND OFFICE AREAMAIN OFFICE AREAFIRE PUMPHOUSECOMPACTOR LOCATIONRAIL STOP -BY OTHERS16 BAYS AT 60'-0"1 BAY AT 60' + 2 BAYS AT 50' + 1 BAY AT 100' + 2 BAYS AT 50'+ 1 BAY AT 60' 40' - 0"235' - 0"36' - 8"30' - 0"40' - 0"GUARD HOUSE8 IN-BOUND TRUCK QUEUINGLIGHTPOLE -TYP. ASSOCIATE ENTRYILLUMINATED SITE MONUMENT SIGNTRUCK ENTRY7' - 0"64' - 0"ILLUMINATED SITE MONUMENT SIGN32' - 0"2 7 ' - 0 "LIGHT DUTY CONCRETE PAVING AT AUTO PARKINGHEAVY DUTY CONCRETE PAVINGLIGHTPOLE W/ TYPICAL BOLLARD PROTECTIONA-1051A-1061A-10252 TRAILER SPACESPROPANE PLATFORM60' - 0"75' - 0"60' - 0"A-1091Macgregor Associates Architects, Inc. - 1987-2021CTHIS DRAWING, AS AN INSTRUMENT OF SERVICE, IS AND SHALL REMAIN THE PROPERTY OF THE DESIGN PROFESSIONAL AND SHALL NOT BE REPRODUCED, PUBLISHED OR USED IN ANY WAY WITHOUT THE PERMISSION OF THE DESIGN PROFESSIONAL.THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS AND EXISTING CONDITIONS AT THE SITE BEFORE PROCEEDING WITH EACH PHASE OF HIS WORK.SEALCONSULTANTPRINT RECORDPROJECT INFORMATIONDATE PROJECT NOSHEET TITLESHEET NUMBERNUMBER DATE DESCRIPTION2727 Paces Ferry Road SEBuilding Two, Suite 1400Atlanta, Georgia 30339T 770.432.9400 F 770.432.9934PROJECT SKINNYBDC FDC10/14/21ISSUED FOR PERMIT10/14/2110/15/2021 7:29:33 AMOVERALL SITEPLANA-101FOR CONSTRUCTION2021-07810/14/2113005 SAM NEELY ROADCHARLOTTE, NCGRAPHIC SCALE040160801" = 70'-0"1OVERALL SITE PLANN

Appendix B Summary Tables and Sample Location Map
Table 1 (Page 1 of 5)Summary of Soil and Sediment Analytical DataAquAir II Brownfields PropertyCharlotte, North CarolinaH&H Job No. TKC-004Sampled ByGreenhorne & O'MaraSample IDSS-03 BAC-1 BAC-2 S-1 S-2 S-3 S-4 S-6 SED-1 SED-2 SED-3 SED-4TypeSoil Soil Soil Soil Soil Soil Soil Soil Sediment Sediment Sediment SedimentDepth (ft bgs)NR 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.5Sample Date10/25/1990 9/10/1992 9/10/1992 9/10/1992 9/10/1992 9/10/1992 9/10/1992 9/10/1992 9/10/1992 9/10/1992 9/10/1992 9/10/1992Range Range Mean Unitsmg/LVOCs (8260)AcetoneNS NS NS NS NS NS NS NS NS NS NS NS140,000---- ----BenzeneNS NS NS NS NS NS NS NS NS NS NS NS5.4---- ----2-Butanone (MEK)NS NS NS NS NS NS NS NS NS NS NS NS40,000---- ----Carbon DisulfideNS NS NS NS NS NS NS NS NS NS NS NS740---- ----Carbon Tetrachloride29<0.0065 <0.0065 <0.0065 <0.0055 <0.0143.40.026<0.32 <0.34 <0.010 <0.0263.0 ---- ----Chlorobenzene10NS NS NS NS NS NS NS NS NS NS NS280 ---- ----ChloroformBQL <0.0065 <0.00650.067<0.0055 <0.014 <0.280.025<0.32 <0.34 <0.010 <0.0261.5 ---- ----2-ChlorotolueneNS NS NS NS NS NS NS NS NS NS NS NS4,700 ---- ----1,2-DichlorobenzeneNS NS NS NS NS NS NS NS NS NS NS NS2,000 ---- ----1,1-DichloroethaneNS NS NS NS NS NS NS NS NS NS NS NS17 ---- ----1,2-DichloroethaneNS NS NS NS NS NS NS NS NS NS NS NS2.2 ---- ----1,1-DichloroetheneNS NS NS NS NS NS NS NS NS NS NS NS210 ---- ----cis-1,2-DichloroetheneNS NS NS NS NS NS NS NS NS NS NS NS470 ---- ----trans-1,2-DichloroetheneNS NS NS NS NS NS NS NS NS NS NS NS64 ---- ----Diisopropyl EtherNS NS NS NS NS NS NS NS NS NS NS NS2,000 ---- ----EthylbenzeneNS NS NS NS NS NS NS NS NS NS NS NS27 ---- ----HexachlorobutadieneNS NS NS NS NS NS NS NS NS NS NS NS5.6 ---- ----4-Methyl-2-pentanoneNS NS NS NS NS NS NS NS NS NS NS NS30,000 ---- ----Methylene ChlorideNS0.029 B 0.021 B 0.022 B 0.022 B<0.014 <0.280.021 B<0.32 <0.34 <0.010 <0.026650 ---- ----Tetrachloroethene150<0.0065 <0.00650.019<0.0055 <0.0141.3 0.18<0.32 <0.34 <0.010 <0.02682 ---- ----1,1,1,2-TetrachloroethaneNS NS NS NS NS NS NS NS NS NS NS NS9.3 ---- ----1,1,2,2,-TetrachloroethaneNS <0.0065 <0.0065 <0.0065 <0.00550.26<0.28 <0.0065 <0.32 <0.34 <0.010 <0.0262.8 ---- ----TolueneNS NS NS NS NS NS NS NS NS NS NS NS9,700 ---- ----1,2,3-TrichlorobenzeneNS NS NS NS NS NS NS NS NS NS NS NS190 ---- ----1,2,4-TrichlorobenzeneNS NS NS NS NS NS NS NS NS NS NS NS55 ---- ----1,1,1-Trichloroethane36<0.0065 <0.0065 <0.0065 <0.0055 <0.014 <0.280.007<0.32 <0.34 <0.010 <0.0267,600 ---- ----1,1,2-TrichloroethaneNS NS NS NS NS NS NS NS NS NS NS NS1.3 ---- ----Trichloroethene9.5<0.0065 <0.0065 <0.0065 <0.0055 <0.0141.2<0.0065 <0.32 <0.34 <0.010 <0.0264.0 ---- ----XylenesNS NS NS NS NS NS NS NS NS NS NS NS530 ---- ----SVOCs (8270)Benzoic Acid0.36 J/UDNA NA NA NA NA NA NA NA NA NA NA660,000 ---- ----Bis(2-Ethylhexyl)phthalate4.5 / 2.3 JDNA NA NA NA NA NA NA NA NA NA NA160 ---- ----Butylbenzylphthalate0.3 J/UDNA NA NA NA NA NA NA NA NA NA NA1,200 ---- ----1,4-Dichlorobenzene1.1 UDNA NA NA NA NA NA NA NA NA NA NA12 ---- ----Di-n-butylphthalate0.29 J/UD NA NA NA NA NA NA NA NA NA NA NA16,000 ---- ----Hexachlorobutadiene0.25 J/UDNA NA NA NA NA NA NA NA NA NA NA5.6 ---- ----Hexachloroethane0.2 J/UDNA NA NA NA NA NA NA NA NA NA NA8.5 ---- ----Phenol2.3 / 1.4 JDNA NA NA NA NA NA NA NA NA NA NA49,000 ---- ----1,2,4-Trichlorobenzene46 / 59DNA NA NA NA NA NA NA NA NA NA NA55 ---- ----RCRA Metals (6010/7470)ArsenicNA1<1.01.9 1.7 1.4 1.6<1.01.4 1.4 1.9<1.03 <1.0 - 1.0 1.0 - 18 4.8--Barium72.4 84 31 54 60 49 190 50 95 91 55 63 47,000 31 - 86.5 50 - 1,000 356--Cadmium788<1.0 <1.0 <1.0 <1.01.3 1.8<1.038 22 5.8 4.8 200 <1 - 9 1.0 - 10 4.3--Chromium (total)18,50022 10 30 50 74 95 110810 1,500200 300 6.5 10 - 24.4 7.0 - 300 65--Copper116NA NA NA NA NA NA NA NA NA NA NA9,300 NE 3.0 - 100 34--Lead2,8205 4 14 4 42 42 7.9 66 79 61 59 800 4 - 20.5 BRL - 50 16--Mercury11.1NA NA <0.25 <0.25 <0.25 <0.25 <0.250.91 0.46<0.25 <0.2570 BRL - <0.25 0.03 - 0.52 0.121--NickelBQL NA NA NA NA NA NA NA NA NA NA NA4,700 NE BRL - 150 23--SeleniumNA <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.01,200 NE <0.1 - 0.8 0.42--SilverBQL <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <2.09.8 3.0<2.0 <2.01,200 NE BRL - 5.0 NE--Vanadium106 130 74 140 3602,200370 1,150 700 340 510 290 1,200 NE 15 - 300 107--Zinc109NA NA NA NA NA NA NA NA NA NA NA70,000 NE 25 - 124 56--TCLP Metals (6010) {mg/L}CadmiumNA NA NA NA NA NA NA NA NA NA NA NA-- -- -- -- 1.0ChromiumNA NA NA NA NA NA NA NA NA NA NA NA-- -- -- -- 5.0Notes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) (June 2021).2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005.3) EPA Toxic Characteristic Leaching Procedure (TCLP) hazardous waste threshold level, 2004Only compounds detected in at least one sample are shown.Soil concentrations are reported in milligrams per kilogram (mg/kg) unless otherwise noted.Laboratory analytical methods are shown in parentheses.Bold values indicate compounds detected above Industrial/Commercial use PSRGs (and above regional background concentrations for metals).Underlined values indicate total concentration exceeds 20 times the TCLP regulatory levelVOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; RCRA = Resource Conservation and Recovery Act .NA = Not Analyzed; NE = Not Established; ft bgs = feet below the ground surface; -- = Not Applicable; NR = Not ReportedBQL = Below Laboratory Quantitation Limits; BRL = Below Reporting Limit; mg/L = milligrams per literJ = Analyte detected at a level less than the RL and greater than or equal to the MDL; D = Constituent was analyzed using a second dilution.U = Constituent was not detected using a second dilution; B = Constituent was also detected in the control blank.mg/kgDelta Environmental ConsultantsScreening CriteriaRegional Background Metals In Soil2TCLP Regulatory Threshold3Industrial/ CommercialPSRGs1Site-Specific Background Metals in Soilhttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/The Keith Corporation (TKC)/2021 New Building/EMP/EMP Tables10/4/2021Table 1 (Page 1 of 5)Hart & Hickman, PC
Table 1 (Page 2 of 5)Summary of Soil and Sediment Analytical DataAquAir II Brownfields PropertyCharlotte, North CarolinaH&H Job No. TKC-004Sampled BySample IDTypeDepth (ft bgs)Sample Date UnitsVOCs (8260)AcetoneBenzene2-Butanone (MEK)Carbon DisulfideCarbon TetrachlorideChlorobenzeneChloroform2-Chlorotoluene1,2-Dichlorobenzene1,1-Dichloroethane1,2-Dichloroethane1,1-Dichloroethenecis-1,2-Dichloroethenetrans-1,2-DichloroetheneDiisopropyl EtherEthylbenzeneHexachlorobutadiene4-Methyl-2-pentanoneMethylene ChlorideTetrachloroethene1,1,1,2-Tetrachloroethane1,1,2,2,-TetrachloroethaneToluene1,2,3-Trichlorobenzene1,2,4-Trichlorobenzene1,1,1-Trichloroethane1,1,2-TrichloroethaneTrichloroetheneXylenesSVOCs (8270)Benzoic AcidBis(2-Ethylhexyl)phthalateButylbenzylphthalate1,4-DichlorobenzeneDi-n-butylphthalateHexachlorobutadieneHexachloroethanePhenol1,2,4-TrichlorobenzeneRCRA Metals (6010/7470)ArsenicBariumCadmiumChromium (total)CopperLeadMercuryNickelSeleniumSilverVanadiumZincTCLP Metals (6010) {mg/L}CadmiumChromiumSS-4 SS-5 SS-6 SS-7 SS-8 SUMP-1 SUMP-2 SED-1 SED-2 SED-3 SED-5 SED-6 SED-7Soil Soil Soil Soil Soil Soil Soil Sediment Sediment Sediment Sediment Sediment Sediment1.0 1.0 1.0 1.0 3.5 1.0 1.0 0.5 0.5 0.5 0.5 0.5 0.57/11/1996 7/11/1996 7/11/1996 7/11/1996 7/29/1996 7/11/1996 7/12/1996 1997 1997 1997 1997 1997 1997Range Range Meanmg/L0.220 0.900 J<15530 0.130 J<0.0063 <0.062NANA NA NA NA NA NA NA140,000---- ----<0.030 <0.731 <5.5 <39.3750.071<0.0063 <0.0062NANA NA NA NA NA NA NA5.4---- ----<0.060 <1.462 <31 <78.7500.210<0.0126 <0.0124NANA NA NA NA NA NA NA40,000---- ----0.0077 J<0.731 <15.5 <39.3750.013<0.0063 <0.0062NANA NA NA NA NA NA NA740---- ----<0.030 <0.7313.2 J<39.3753.5 D<0.0063 <0.0063NANA NA NA NA NA NA NA3.0 ---- ----0.037 0.600 J 120 8.6 J 0.140<0.0063 <0.0064NANA NA NA NA NA NA NA280 ---- ----0.170 0.8003.7 J<39.3751.1 DJ<0.0063 <0.0065NANA NA NA NA NA NA NA1.5 ---- ----<0.030 <0.731 <15.5 <39.3750.0081 J<0.0063 <0.0066NANA NA NA NA NA NA NA4,700 ---- ----0.018 J 3.6<15.5 <39.3750.720 DJ<0.0063 <0.0067NANA NA NA NA NA NA NA2,000 ---- ----0.024 J<0.731 <15.5 <39.3750.150<0.0063 <0.0068NANA NA NA NA NA NA NA17 ---- ----<0.030 <0.731 <15.5 <39.375 <0.034 <0.0063 <0.0062NANA NA NA NA NA NA NA2.2 ---- ----0.056<0.731 <15.5 <39.3751.6 J<0.0063 <0.0069NANA NA NA NA NA NA NA210 ---- ----0.640<0.731 <15.5 <39.3751.2<0.0063 <0.0061NANA NA NA NA NA NA NA470 ---- ----<0.030 <0.731 <15.5 <39.3750.089<0.0063 <0.00611NANA NA NA NA NA NA NA64 ---- ----<0.030 <0.731 <15.5 <39.375 <0.034 <0.0063 <0.0062NANA NA NA NA NA NA NA2,000 ---- ----<0.030 <0.731 <15.5 <39.3750.0067 J<0.0063 <0.00612NANA NA NA NA NA NA NA27 ---- ----<0.030 <0.731 <15.5 <39.3750.079<0.0063 <0.00613NANA NA NA NA NA NA NA5.6 ---- ----0.074<0.731 <15.5 <39.3750.530<0.0063 <0.00614NANA NA NA NA NA NA NA30,000 ---- ----<0.030 <0.731 <15.5 <39.3751.1<0.0063 <0.00615NANA NA NA NA NA NA NA650 ---- ----2.3 D 1949074082 D<0.0063 <0.00618NANA NA NA NA NA NA NA82 ---- ----<0.030 <0.731 <15.5 <39.3750.016 J 0.029<0.00616NANA NA NA NA NA NA NA9.3 ---- ----<0.03011 120<39.3750.650 0.05<0.00617NANA NA NA NA NA NA NA2.8 ---- ----0.030<0.7316.1 J<39.3750.084<0.0063 <0.00619NANA NA NA NA NA NA NA9,700 ---- ----0.015 J<0.731 <15.5 <39.375 <0.034 <0.0063 <0.0062NANA NA NA NA NA NA NA190 ---- ----<0.030 <0.731 <15.5 <39.375 <0.034 <0.0063 <0.0062NANA NA NA NA NA NA NA55 ---- ----<0.030 <0.731 <15.5 <39.375 <0.034 <0.0063 <0.0062NANA NA NA NA NA NA NA7,600 ---- ----<0.030 <0.731 <15.5 <39.375 <0.034 <0.0063 <0.0062NANA NA NA NA NA NA NA1.3 ---- ----<0.030 <0.731 <15.5 <39.375 <0.034 <0.0063 <0.0062NANA NA NA NA NA NA NA4.0 ---- ----<0.030 <0.731 <15.5 <39.375 <0.034 <0.0063 <0.0062NANA NA NA NA NA NA NA530 ---- ----NA NA NA NA NA NA NA NANA NA NA NA NA NA NA660,000 ---- ----NA NA NA NA NA NA NA NANA NA NA NA NA NA NA160 ---- ----NA NA NA NA NA NA NA NANA NA NA NA NA NA NA1,200 ---- ----NA NA NA NA NA NA NA NANA NA NA NA NA NA NA12 ---- ----NA NA NA NA NA NA NA NANA NA NA NA NA NA NA16,000 ---- ----NA NA NA NA NA NA NA NANA NA NA NA NA NA NA5.6 ---- ----NA NA NA NA NA NA NA NANA NA NA NA NA NA NA8.5 ---- ----NA NA NA NA NA NA NA NANA NA NA NA NA NA NA49,000 ---- ----NA NA NA NA NA NA NA NANA NA NA NA NA NA NA55 ---- ----3.82 4.61 4.59 3.42NA2.14 2.67NA NA NA NA NA NA NA NA3 <1.0 - 1.0 1.0 - 18 4.8--66.1 72 78.1 60.0NA46.6 62.8 570 230 84 49 66 160 100 150 47,000 31 - 86.5 50 - 1,000 356--11.6 J<0.582.95 38.3NA <0.64 <0.592.1 5.4 1.2 8 11 170 2.4 1.6 200 <1 - 9 1.0 - 10 4.3--1,220 J87.1 65.21,310NA11.8 236 40 73 30 110 1601,40063 29 6.5 10 - 24.4 7.0 - 300 65--NA NA NA NA NA NA NANA NA NA NA NA NA NA NA9,300 NE 3.0 - 100 34--22.7 22.3 18.3 27.7NA6.56 14.9 25 30 24 97 110 440 40 31 800 4 - 20.5 BRL - 50 16--<0.12 <0.120.31 0.7NA <0.13 <0.12 NA NA NA NA NA NA NA NA70 BRL - <0.25 0.03 - 0.52 0.121--NA NA NA NA NA NA NANA NA NA NA NA NA NA NA4,700 NE BRL - 150 23--NA NA NA NA NA NA NANA NA NA NA NA NA NA NA1,200 NE <0.1 - 0.8 0.42--<1.21 <1.16 <1.27 <1.29 NA <1.28 <1.18 NA NA NA NA NA NA NA NA1,200 NE BRL - 5.0 NE--NA NA NA NA NA NA NA110 330 82 430 680 1,000 130 90 1,200 NE 15 - 300 107--NA NA NA NA NA NA NANA NA NA NA NA NA NA NA70,000 NE 25 - 124 56--NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA-- -- -- -- 1.0NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA-- -- -- -- 5.0Notes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) (June 2021).2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005.3) EPA Toxic Characteristic Leaching Procedure (TCLP) hazardous waste threshold level, 2004Only compounds detected in at least one sample are shown.Soil concentrations are reported in milligrams per kilogram (mg/kg) unless otherwise noted.Laboratory analytical methods are shown in parentheses.Bold values indicate compounds detected above Industrial/Commercial use PSRGs (and above regional background concentrations for metals).Underlined values indicate total concentration exceeds 20 times the TCLP regulatory levelVOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; RCRA = Resource Conservation and Recovery Act .NA = Not Analyzed; NE = Not Established; ft bgs = feet below the ground surface; -- = Not Applicable; NR = Not ReportedBQL = Below Laboratory Quantitation Limits; BRL = Below Reporting Limit; mg/L = milligrams per literJ = Analyte detected at a level less than the RL and greater than or equal to the MDL; D = Constituent was analyzed using a second dilution.U = Constituent was not detected using a second dilution; B = Constituent was also detected in the control blank.Screening CriteriaIndustrial/ CommercialPSRGs1Site-Specific Background Metals in SoilGeraghty & MillerRegional Background Metals In Soil2TCLP Regulatory Threshold319970.5SedimentSED-4/DUPS&MEmg/kghttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/The Keith Corporation (TKC)/2021 New Building/EMP/EMP Tables10/4/2021Table 1 (Page 2 of 5)Hart & Hickman, PC
Table 1 (Page 3 of 5)Summary of Soil and Sediment Analytical DataAquAir II Brownfields PropertyCharlotte, North CarolinaH&H Job No. TKC-004Sampled BySample IDTypeDepth (ft bgs)Sample Date UnitsVOCs (8260)AcetoneBenzene2-Butanone (MEK)Carbon DisulfideCarbon TetrachlorideChlorobenzeneChloroform2-Chlorotoluene1,2-Dichlorobenzene1,1-Dichloroethane1,2-Dichloroethane1,1-Dichloroethenecis-1,2-Dichloroethenetrans-1,2-DichloroetheneDiisopropyl EtherEthylbenzeneHexachlorobutadiene4-Methyl-2-pentanoneMethylene ChlorideTetrachloroethene1,1,1,2-Tetrachloroethane1,1,2,2,-TetrachloroethaneToluene1,2,3-Trichlorobenzene1,2,4-Trichlorobenzene1,1,1-Trichloroethane1,1,2-TrichloroethaneTrichloroetheneXylenesSVOCs (8270)Benzoic AcidBis(2-Ethylhexyl)phthalateButylbenzylphthalate1,4-DichlorobenzeneDi-n-butylphthalateHexachlorobutadieneHexachloroethanePhenol1,2,4-TrichlorobenzeneRCRA Metals (6010/7470)ArsenicBariumCadmiumChromium (total)CopperLeadMercuryNickelSeleniumSilverVanadiumZincTCLP Metals (6010) {mg/L}CadmiumChromiumAAH-1 AAH-9 AAH-14 AAH-17 AAH-25AAH-31 AAH-33 AAH-34 AAH-38 AAH-47 AAH-49 AAH-51 APH-20Soil Soil Soil Soil SoilSoil Soil Soil Soil Soil Soil Soil Soil0.0-0.5 0.0-0.5 0.0-0.5 0.0-0.5 0.0-0.50.0-0.5 0.0-00.5 0.0-0.5 0.0-0.5 0.0-0.5 0.0-0.5 0.0-0.5 2.0-2.57/1/2003 7/1/2003 7/1/2003 7/1/2003 7/2/20037/2/2003 7/1/2013 7/1/2003 7/2/2003 7/2/2003 7/1/2003 7/2/2003 7/31/2003Range Range Meanmg/LNA NA NA NA NA NA NA NA NA NA NA NA<0.0056140,000---- -- --NA NA NA NA NA <0.0054 NA <0.0057 NA NA NA NA<0.00565.4---- -- --NA NA NA NA NA NA NA NA NA NA NA NA<0.005640,000---- -- --NA NA NA NA NA NA NA NA NA NA NA NA<0.0056740---- -- --NA NA NA NA NA1.4NA63NA NA NA NA0.943.0 ---- -- --NA NA NA NA NA0.043NA <0.0057 NA NA NA NA<0.0056280 ---- -- --NA NA NA NA NA0.51NA0.260NA NA NA NA0.251.5 ---- -- --NA NA NA NA NA0.0088NA <0.0057 NA NA NA NA<0.00564,700 ---- -- --NA NA NA NA NA <0.0054 NA <0.0057 NA NA NA NA<0.00562,000 ---- -- --NA NA NA NA NA0.16NA <0.0057 NA NA NA NA<0.005617 ---- -- --NA NA NA NA NA <0.0054 NA <0.0057 NA NA NA NA<0.00562.2 ---- -- --NA NA NA NA NA0.28NA0.017NA NA NA NA0.39210 ---- -- --NA NA NA NA NA0.82NA <0.0057 NA NA NA NA0.11470 ---- -- --NA NA NA NA NA <0.0054 NA <0.0057 NA NA NA NA0.02964 ---- -- --NA NA NA NA NA <0.0054 NA <0.0057 NA NA NA NA<0.00562,000 ---- -- --NA NA NA NA NA <0.0054 NA <0.0057 NA NA NA NA<0.005627 ---- -- --NA NA NA NA NANANANANA NA NA NA<0.00565.6 ---- -- --NA NA NA NA NANANANANA NA NA NA<0.005630,000 ---- -- --NA NA NA NA NA0.43NA0.015NA NA NA NA 0.0057650 ---- -- --NA NA NA NA NA9.9NA4.1NA NA NA NA<0.005682 ---- -- --NA NA NA NA NA <0.0054 NA <0.0057 NA NA NA NA<0.00569.3 ---- -- --NA NA NA NA NA <0.0054 NA <0.0057 NA NA NA NA0.642.8 ---- -- --NA NA NA NA NA0.044NA <0.0057 NA NA NA NA<0.00569,700 ---- -- --NA NA NA NA NA <0.0054 NA <0.0057 NA NA NA NA<0.0056190 ---- -- --NA NA NA NA NA <0.0054 NA <0.0057 NA NA NA NA<0.005655 ---- -- --NA NA NA NA NA0.99NA0.086NA NA NA NA<0.00567,600 ---- -- --NA NA NA NA NA0.013NA <0.0057 NA NA NA NA0.0191.3 ---- -- --NA NA NA NA NA11NA0.080NA NA NA NA5.54.0 ---- -- --NA NA NA NA NA <0.0054 NA <0.0057 NA NA NA NA<0.0056530 ---- -- --NA NA NA NA NANA NA NA NA NA NA NA NA660,000 ---- -- --NA NA NA NA NANA NA NA NA NA NA NA NA160 ---- -- --NA NA NA NA NANA NA NA NA NA NA NA NA1,200 ---- -- --NA NA NA NA NANA NA NA NA NA NA NA NA12 ---- -- --NA NA NA NA NANA NA NA NA NA NA NA NA16,000 ---- -- --NA NA NA NA NANA NA NA NA NA NA NA NA5.6 ---- -- --NA NA NA NA NANA NA NA NA NA NA NA NA8.5 ---- -- --NA NA NA NA NANA NA NA NA NA NA NA NA49,000 ---- -- --NA NA NA NA NANA NA NA NA NA NA NA NA55 ---- -- --NA NA NA NA1.1NA NA NA NA NA NA NA NA3 <1.0 - 1.0 1.0 - 18 4.8 --NA NA NA NA NANA NA NA NA NA NA NA NA47,000 31 - 86.5 50 - 1,000 356 --NA NA0.59 0.49 0.66<0.110.22 0.46 0.75 0.58 0.75 34NA200 <1 - 9 1.0 - 10 4.3 --110 110 71 34044018822.13442,30056 73 190NA6.5 10 - 24.4 7.0 - 300 65 --NA NA NA NA NANA NA NA NA NA NA NA NA9,300 NE 3.0 - 100 34 --NA NA NA NA NANA NA NA NA NA NA50NA800 4 - 20.5 BRL - 50 16 --NA NA NA NA NANA NA NA NA NA NA NA NA70 BRL - <0.25 0.03 - 0.52 0.121 --NA NA NA NA NANA NA NA NA NA NA NA NA4,700 NE BRL - 150 23 --NA NA NA NA NANA NA NA NA NA NA NA NA1,200 NE <0.1 - 0.8 0.42 --NA NA NA NA NANA NA NA NA NA NA NA NA1,200 NE BRL - 5.0 NE --660 450 480 89 86150 91 100 1,000 830 470 570NA1,200 NE 15 - 300 107 --NA NA NA NA NANA NA NA NA NA NA NA NA70,000 NE 25 - 124 56 --NA NA NA0.78NA NA NA NA0.12NA NA0.19NA-- -- -- -- 1.0NA NA NA0.31NA NA2.3NA0.07NA NANANA-- -- -- -- 5.0Notes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) (June 2021).2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005.3) EPA Toxic Characteristic Leaching Procedure (TCLP) hazardous waste threshold level, 2004Only compounds detected in at least one sample are shown.Soil concentrations are reported in milligrams per kilogram (mg/kg) unless otherwise noted.Laboratory analytical methods are shown in parentheses.Bold values indicate compounds detected above Industrial/Commercial use PSRGs (and above regional background concentrations for metals).Underlined values indicate total concentration exceeds 20 times the TCLP regulatory levelVOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; RCRA = Resource Conservation and Recovery Act .NA = Not Analyzed; NE = Not Established; ft bgs = feet below the ground surface; -- = Not Applicable; NR = Not ReportedBQL = Below Laboratory Quantitation Limits; BRL = Below Reporting Limit; mg/L = milligrams per literJ = Analyte detected at a level less than the RL and greater than or equal to the MDL; D = Constituent was analyzed using a second dilution.U = Constituent was not detected using a second dilution; B = Constituent was also detected in the control blank.Regional Background Metals In Soil2TCLP Regulatory Threshold3Industrial/ CommercialPSRGs1Site-Specific Background Metals in SoilScreening CriteriaS&MEhttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/The Keith Corporation (TKC)/2021 New Building/EMP/EMP Tables10/4/2021Table 1 (Page 3 of 5)Hart & Hickman, PC
Table 1 (Page 4 of 5)Summary of Soil and Sediment Analytical DataAquAir II Brownfields PropertyCharlotte, North CarolinaH&H Job No. TKC-004Sampled BySample IDTypeDepth (ft bgs)Sample Date UnitsVOCs (8260)AcetoneBenzene2-Butanone (MEK)Carbon DisulfideCarbon TetrachlorideChlorobenzeneChloroform2-Chlorotoluene1,2-Dichlorobenzene1,1-Dichloroethane1,2-Dichloroethane1,1-Dichloroethenecis-1,2-Dichloroethenetrans-1,2-DichloroetheneDiisopropyl EtherEthylbenzeneHexachlorobutadiene4-Methyl-2-pentanoneMethylene ChlorideTetrachloroethene1,1,1,2-Tetrachloroethane1,1,2,2,-TetrachloroethaneToluene1,2,3-Trichlorobenzene1,2,4-Trichlorobenzene1,1,1-Trichloroethane1,1,2-TrichloroethaneTrichloroetheneXylenesSVOCs (8270)Benzoic AcidBis(2-Ethylhexyl)phthalateButylbenzylphthalate1,4-DichlorobenzeneDi-n-butylphthalateHexachlorobutadieneHexachloroethanePhenol1,2,4-TrichlorobenzeneRCRA Metals (6010/7470)ArsenicBariumCadmiumChromium (total)CopperLeadMercuryNickelSeleniumSilverVanadiumZincTCLP Metals (6010) {mg/L}CadmiumChromiumAPH-38 APH-58 APH-59Soil Soil Soil Soil Soil Soil Soil Soil Soil6.0-6.5 11.5-12.0 6.0-6.5 11.5-12.0 6.0-6.5 6.0-6.5 11.5-12.0 11.5-12.0 6.0-6.57/31/2003 7/31/2003 7/31/2003 7/31/2003 7/2/2003 7/30/2003 7/30/2003 7/31/2003 7/31/2003Range Range Meanmg/LNA NA NA NA <0.27 NA NA NA NA140,000---- -- --<0.0054 <0.0047 <0.0048 <0.0044 <0.27 <12 <1.2 <0.0048 <4.85.4---- -- --NA NA NA NA <0.27 NA NA NA NA40,000---- -- --NA NA NA NA <0.27 NA NA NA NA740---- -- --0.51 0.95 6.3 0.8915610361.51203.0 ---- -- --0.013 0.04 0.18 0.0481.4<12 <1.20.82 88 280 ---- -- --0.96 0.94 4.9 0.941117 1.7 2.3<4.81.5 ---- -- --<0.0054 <0.00470.011<0.0044 <0.27 <12 <1.2 <0.0048 <4.84,700 ---- -- --0.081 0.48<0.0048 <0.00441.5<12 <1.2 <0.0048 <4.82,000 ---- -- --0.0065<0.00470.24 0.0720.96<12 <1.20.031<4.817 ---- -- --<0.0054 <0.00474.8 0.057<0.27 <12 <1.20.13<4.82.2 ---- -- --0.015 0.01 0.22 0.0370.36<12 <1.20.061 4.8 210 ---- -- --0.16 0.12 0.15 0.03<0.27 <12 <1.20.02<4.8470 ---- -- --<0.00540.0059<0.0048 <0.0044 <0.27 <12 <1.2 <0.0048 <4.864 ---- -- --<0.0054 <0.0047 <0.0048 <0.0044 <0.27 <12 <1.20.035<4.82,000 ---- -- --<0.0054 <0.0047 <0.0048 <0.0044 <0.27 <12 <1.2 <0.0048 <4.827 ---- -- --NA NA NA NA<0.27NA NA NA NA5.6 ---- -- --NA NA NA NA<0.27NA NA NA NA30,000 ---- -- --0.57 0.32 0.8 69<12 <1.23 8 650 ---- -- --0.74 4.3 0.82 0.32<0.275203 1.62,70082 ---- -- --<0.0054 <0.0047 <0.0048 <0.0044 <0.27 <12 <1.2 <0.0048 <4.89.3 ---- -- --0.016 0.017 0.087<0.00440.35<12 <1.20.19<4.82.8 ---- -- --0.011 0.0093 0.590.015 3.1<12 <1.20.079 8.5 9,700 ---- -- --<0.0054 <0.0047 <0.0048 <0.0044 <0.27 <12 <1.2 <0.0048 <4.8190 ---- -- --0.0054<0.0047 <0.0048 <0.0044 <0.27 <12 <1.2 <0.0048 <4.855 ---- -- --0.041 0.052 0.24 0.363.6160 1.8 0.17 240 7,600 ---- -- --0.017 0.017 0.049 0.016<0.27 <12 <1.20.019<4.81.3 ---- -- --0.21 0.45 2.8 0.185.31601.8 14804.0 ---- -- --<0.0054 <0.00470.0110.005 0.11<12 <1.2 <0.004810 530 ---- -- --NA NA NA NA NA NA NA NA NA660,000 ---- -- --NA NA NA NA NA NA NA NA NA160 ---- -- --NA NA NA NA NA NA NA NA NA1,200 ---- -- --NA NA NA NA NA NA NA NA NA12 ---- -- --NA NA NA NA NA NA NA NA NA16,000 ---- -- --NA NA NA NA NA NA NA NA NA5.6 ---- -- --NA NA NA NA NA NA NA NA NA8.5 ---- -- --NA NA NA NA NA NA NA NA NA49,000 ---- -- --NA NA NA NA NA NA NA NA NA55 ---- -- --<0.52 NA NA NA NA NA NA NA NA3 <1.0 - 1.0 1.0 - 18 4.8 --NA NA NA NA NA NA NA NA NA47,000 31 - 86.5 50 - 1,000 356 --1.2NA3.4NA NA1.6NA NA NA200 <1 - 9 1.0 - 10 4.3 --54NA5.1NA NA16NA NA NA6.5 10 - 24.4 7.0 - 300 65 --NA NA NA NA NA NA NA NA NA9,300 NE 3.0 - 100 34 --NA NA NA NA NA NA NA NA NA800 4 - 20.5 BRL - 50 16 --NA NA NA NA NA NA NA NA NA70 BRL - <0.25 0.03 - 0.52 0.121 --NA NA NA NA NA NA NA NA NA4,700 NE BRL - 150 23 --NA NA NA NA NA NA NA NA NA1,200 NE <0.1 - 0.8 0.42 --NA NA NA NA NA NA NA NA NA1,200 NE BRL - 5.0 NE --41NA160NA NA85NA NA NA1,200 NE 15 - 300 107 --NA NA NA NA NA NA NA NA NA70,000 NE 25 - 124 56 --NA NA NA NA NA NA NA NA NA-- -- -- -- 1.0NA NA NA NA NA NA NA NA NA-- -- -- -- 5.0Notes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) (June 2021).2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005.3) EPA Toxic Characteristic Leaching Procedure (TCLP) hazardous waste threshold level, 2004Only compounds detected in at least one sample are shown.Soil concentrations are reported in milligrams per kilogram (mg/kg) unless otherwise noted.Laboratory analytical methods are shown in parentheses.Bold values indicate compounds detected above Industrial/Commercial use PSRGs (and above regional background concentrations for metals).Underlined values indicate total concentration exceeds 20 times the TCLP regulatory levelVOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; RCRA = Resource Conservation and Recovery Act .NA = Not Analyzed; NE = Not Established; ft bgs = feet below the ground surface; -- = Not Applicable; NR = Not ReportedBQL = Below Laboratory Quantitation Limits; BRL = Below Reporting Limit; mg/L = milligrams per literJ = Analyte detected at a level less than the RL and greater than or equal to the MDL; D = Constituent was analyzed using a second dilution.U = Constituent was not detected using a second dilution; B = Constituent was also detected in the control blank.Regional Background Metals In Soil2mg/kgIndustrial/ CommercialPSRGs1Site-Specific Background Metals in SoilTCLP Regulatory Threshold3APH-24 APH-32S&MEScreening CriteriaAPH-42https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/The Keith Corporation (TKC)/2021 New Building/EMP/EMP Tables10/4/2021Table 1 (Page 4 of 5)Hart & Hickman, PC
Table 1 (Page 5 of 5)Summary of Soil and Sediment Analytical DataAquAir II Brownfields PropertyCharlotte, North CarolinaH&H Job No. TKC-004Sampled BySample IDTypeDepth (ft bgs)Sample Date UnitsVOCs (8260)AcetoneBenzene2-Butanone (MEK)Carbon DisulfideCarbon TetrachlorideChlorobenzeneChloroform2-Chlorotoluene1,2-Dichlorobenzene1,1-Dichloroethane1,2-Dichloroethane1,1-Dichloroethenecis-1,2-Dichloroethenetrans-1,2-DichloroetheneDiisopropyl EtherEthylbenzeneHexachlorobutadiene4-Methyl-2-pentanoneMethylene ChlorideTetrachloroethene1,1,1,2-Tetrachloroethane1,1,2,2,-TetrachloroethaneToluene1,2,3-Trichlorobenzene1,2,4-Trichlorobenzene1,1,1-Trichloroethane1,1,2-TrichloroethaneTrichloroetheneXylenesSVOCs (8270)Benzoic AcidBis(2-Ethylhexyl)phthalateButylbenzylphthalate1,4-DichlorobenzeneDi-n-butylphthalateHexachlorobutadieneHexachloroethanePhenol1,2,4-TrichlorobenzeneRCRA Metals (6010/7470)ArsenicBariumCadmiumChromium (total)CopperLeadMercuryNickelSeleniumSilverVanadiumZincTCLP Metals (6010) {mg/L}CadmiumChromiumSB-01 SB-02 SB-03 SB-04 SB-05 SB-06 SB-07 SB-08 SB-09 SB-10 SB-11 SB-12 SB-13 SB-14 SB-15 SB-16 SB-17Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.512/8/2015 12/8/2015 12/8/2015 12/8/2015 12/8/2015 12/8/2015 12/8/2015 12/8/2015 12/8/2015 12/8/2015 12/8/2015 12/8/2015 12/8/2015 12/8/2015 12/8/2015 12/8/2015 12/8/2015Range Range Meanmg/L<0.0875 <0.0908 <0.0914 <0.0866<0.108 <0.109 <0.112 <0.0863 <0.109 <0.101 <0.173 <0.1900.205<0.116 <0.186 <0.183 <0.117140,000---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.00595.4---- -- --<0.0875 <0.0908 <0.0914 <0.0866<0.108 <0.109 <0.112 <0.0863 <0.109 <0.101 <0.173 <0.190 <0.0157 <0.116 <0.186 <0.183 <0.11740,000---- -- --NA NA NA NANA NA NA NA NA NA NA NA NA NA NA NA NA740---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.00593.0 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.0059280 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.00591.5 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.00594,700 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.00592,000 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.005917 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.00592.2 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.0059210 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.0059470 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.00594,700 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.00592,000 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.005927 ---- -- --NA NA NA NANA NA NA NA NA NA NA NA NA NA NA NA NA5.6 ---- -- --<0.0437 <0.0454 <0.0457 <0.0433<0.0539 <0.0547 <0.0056 <0.0432 <0.0543 <0.0503 <0.0866 <0.0951 <0.0785 <0.0582 <0.0930 <0.0916 <0.058630,000 ---- -- --<0.0175 <0.0182 <0.01830.101<0.0215 <0.0219 <0.0224 <0.0173 <0.0217 <0.0201 <0.0347 <0.03800.0344 0.0334 0.0403<0.0367 <0.0234650 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043 <0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.00870.0107<0.0079 <0.0058 <0.0093 <0.0092 <0.005982 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.00599.3 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.00592.8 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.00599,700 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.0059190 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.005955 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.00597,600 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.00591.3 ---- -- --<0.0044 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.00594.0 ---- -- --<0.0087 <0.0045 <0.0046 <0.0043<0.0054 <0.0055 <0.0056 <0.0043 <0.0054 <0.005 <0.0087 <0.0095 <0.0079 <0.0058 <0.0093 <0.0092 <0.0059530 ---- -- --<2.020 <2.040 <0.421 <0.398 <0.462 <0.404 <0.455 <0.409 <0.445 <0.432 <0.397 <0.413 <0.413 <0.351 <0.455 <0.422 <0.447660,000 ---- -- --<0.405 <0.408 <0.421 <0.398 <0.462 <0.404 <0.455 <0.409 <0.445 <0.432 <0.397 <0.413 <0.413 <0.351 <0.455 <0.422 <0.447160 ---- -- --<0.405 <0.408 <0.421 <0.398 <0.462 <0.404 <0.455 <0.409 <0.445 <0.432 <0.397 <0.413 <0.413 <0.351 <0.455 <0.422 <0.4471,200 ---- -- --<0.405 <0.408 <0.421 <0.398 <0.462 <0.404 <0.455 <0.409 <0.445 <0.432 <0.397 <0.413 <0.413 <0.351 <0.455 <0.422 <0.44712 ---- -- --<0.405 <0.408 <0.421 <0.398 <0.462 <0.404 <0.455 <0.409 <0.445 <0.432 <0.397 <0.413 <0.413 <0.351 <0.455 <0.422 <0.44716,000 ---- -- --NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA5.6 ---- -- --<0.405 <0.408 <0.421 <0.398 <0.462 <0.404 <0.455 <0.409 <0.445 <0.432 <0.397 <0.413 <0.413 <0.351 <0.455 <0.422 <0.4478.5 ---- -- --<0.405 <0.408 <0.421 <0.398 <0.462 <0.404 <0.455 <0.409 <0.445 <0.432 <0.397 <0.413 <0.413 <0.351 <0.455 <0.422 <0.44749,000 ---- -- --<0.405 <0.408 <0.421 <0.398 <0.462 <0.404 <0.455 <0.409 <0.445 <0.432 <0.397 <0.413 <0.413 <0.351 <0.455 <0.422 <0.447190 ---- -- --<1.11.3 1.1<0.960 <1.1 <1.0 <1.00.9<0.940 <3.71.1<0.89 <0.81 <3.0 <0.714.1<0.743.0 <1.0 - 1.0 1.0 - 18 4.8 --102 76.6 88 80.1 57.1 36.5 57.7 63.1 59.0 98.6 50.2 55.4 77.3 61.6 83.2 179 10347,000 31 - 86.5 50 - 1,000 356 --<0.110 <0.110 <0.100 <0.096 <0.110 <0.1005.9<0.090 <0.0941.9<0.0862.4<0.081 <0.30 <0.0071 <0.39 <0.074200 <1 - 9 1.0 - 10 4.3 --64.5 85.3 24.2 91.8 18.4 49.6 158 12.4 3.7 182 40.0 90.1 41.6<1.59.6 52.6 10.16.5 10 - 24.4 7.0 - 300 65 --14.6 10 8 13.3 8.5 7 34.7 9.3 11.6 26.9 6.8 15.6 10 9.7 9.5 36 99,300 NE 3.0 - 100 34 --19 25.3 19 20 8.5 16 38.7 11.9 3.1 26.1 22.7 25.4 25<1.56.9 5.8 3.6800 4 - 20.5 BRL - 50 16 --0.029 0.036 0.033 0.045 0.069 0.044 0.2 0.044 0.013 0.049 0.023 0.049 0.016<0.00390.083 0.0097 0.0669.7 BRL - <0.25 0.03 - 0.52 0.121 --11.5 4.8 6.5 4 4.1 1.7 10.7 3.2 1.3 11.4 2.8 5 4.5 2.7 2.9 30.9 4.14,700 NE BRL - 150 23 --2 2.6 1.7 2.1 3.0 1.9 2.3 1.3 1.4<3.71.3 1.3 1.2<3.02.5<3.92.01,200 NE <0.1 - 0.8 0.42 --0.73<0.550 <0.510 <0.480 <0.570 <0.5003.6 0.51 0.58<1.8 <0.430 <0.4500.53<1.50.38<1.90.711,200 NE BRL - 5.0 NE --183 256 124 359 128 194 169 105 76.2 322 127 215 189 35.2 148 77.3 87.41,200 NE 15 - 300 107 --30.7 30.4 36.5 19.5 23.4 13.5 44.4 27.1 53 64.1 15.4 83.3 23.8 23.4 18.3 22.3 28.170,000 NE 25 - 124 56 --NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA-- -- -- -- 1.0NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA-- -- -- -- 5.0Notes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) (June 2021).2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005.3) EPA Toxic Characteristic Leaching Procedure (TCLP) hazardous waste threshold level, 2004Only compounds detected in at least one sample are shown.Soil concentrations are reported in milligrams per kilogram (mg/kg) unless otherwise noted.Laboratory analytical methods are shown in parentheses.Bold values indicate compounds detected above Industrial/Commercial use PSRGs (and above regional background concentrations for metals).Underlined values indicate total concentration exceeds 20 times the TCLP regulatory levelVOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; RCRA = Resource Conservation and Recovery Act .NA = Not Analyzed; NE = Not Established; ft bgs = feet below the ground surface; -- = Not Applicable; NR = Not ReportedBQL = Below Laboratory Quantitation Limits; BRL = Below Reporting Limit; mg/L = milligrams per literJ = Analyte detected at a level less than the RL and greater than or equal to the MDL; D = Constituent was analyzed using a second dilution.U = Constituent was not detected using a second dilution; B = Constituent was also detected in the control blank.mg/kgTerraconScreening CriteriaRegional Background Metals In Soil2TCLP Regulatory Threshold3Industrial/ CommercialPSRGs1Site-Specific Background Metals in Soilhttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/The Keith Corporation (TKC)/2021 New Building/EMP/EMP Tables10/4/2021Table 1 (Page 5 of 5)Hart & Hickman, PC
Table 2 (Page 1 of 2)Summary of Groundwater Analytical DataAquAir II Brownfields PropertyCharlotte, North CarolinaH&H Job No. TKC-004Sampled ByS&MESample ID AMW-101 AMW-106* AMW-403 AMW-405*AMW-410*AMW-411* AMW-503 AMW-612* DW-1* DW-2 DW-3* DW-4Most Recent Sample Date 7/27/2011 3/3/2005 9/21/2006 3/4/20053/4/2005 7/28/2011 9/21/2006 7/28/20117/28/2011 9/21/2006 6/4/2004 9/21/2006Well Depth (ft bgs) 36 28 73 67 68 90 150 154 40 27 34 51UnitsVOCs (8260)Benzene0.001BRL<0.0010BRL BRL BRL <0.0010 BRL BRL<0.010 BRL<0.00100.001 0.069Carbon Tetrachloride3.22BRL0.011BRL BRL BRL <0.0010 BRL BRL0.68BRL <0.00100.0003 0.018Chloroform2.96BRL0.095BRL BRL BRL0.0028BRL BRL0.4BRL <0.00100.07 0.0361,1-Dichloroethane0.0938BRL0.0013BRL BRL BRL <0.0010 BRL BRL <0.010 BRL <0.00100.006 0.331,2-Dichloroethane0.0628BRL0.0043BRL BRL BRL <0.0010 BRL BRL0.017BRL <0.00100.0004 0.0981,1-Dichloroethene0.366BRL0.011BRL BRL BRL <0.0010 BRL BRL0.11BRL <0.00100.35 0.16cis-1,2-Dichloroethene0.17BRL0.024BRL BRL BRL <0.0010 BRL BRL0.13BRL <0.00100.07 NEMethylene Chloride0.0324BRL0.023BRL BRL BRL <0.0020 BRL BRL <0.020 BRL <0.00200.005 4.01,1,1,2-Tetrahloroethane0.0012NA NA NA NA NA NA NA NA NA NA NA0.001 0.016Tetrachloroethene3.86BRL0.075BRL BRL BRL0.0034BRL BRL0.85BRL <0.00100.0007 0.0481,1,1-Trichloroethane0.216BRL0.0012BRL BRL BRL <0.0010 BRL BRL <0.010 BRL <0.00100.2 6.21,1,2-Trichloroethane0.0086BRL <0.0010 BRL BRL BRL <0.0010 BRL BRL <0.010 BRL <0.00100.006 0.0052Trichloroethene2.48BRL0.085BRL BRL BRL0.0031BRL BRL0.71BRL <0.00100.003 0.0044SVOCs (8270)BRLNANANANANANANANANANANA----RCRA Metals (3010/3030c/245.1)Arsenic<0.0050 BRL NA BRL0.0059NA NA BRL BRL NA0.011NA0.01--Chromium0.0475NA NA NA NA NA NA NA NA NA NA NA0.01--Chromium III 0.0475NA NA NA NA NA NA NA NA NA NA NANE--Chromium VI<0.000050 NA NA NA NA NA NA NA NA NA NA NANE--Manganese0.99NA NA NA NA NA NA NA NA NA NA NA0.05--Notes:1) North Carolina Department of Environmental Quality (DEQ) 15A North Carolina Administrative Code 02L.0202 Groundwater Quality Standard (April 2013).2) DEQ Division of Waste Management (DWM) Non-Residential Vapor Intrusion Groundwater Screening Levels (GWSLs) (June 2021)Only those compounds detected above the 2L Standard or Non-Residential GWSL in at least one sample shown above (Chromium VI is shown since it was speciated.)Bold indicates an exceedance in the NCAC 2L Groundwater StandardUnderlined indicates an exceedance in the DEQ DWM Non-Residential GWSLLaboratoy analytical method show in parentheses. mg/L = milligrams per liter; ft bgs = feet below ground surfaceVOCs = volatile organic compounds; SVOCs = Semi-VOCs; RCRA = Resource Conservation and Recovery Act; BRL = below laboratory reporting limitsNE = Not Established; NA= Not Analyzed, -- = not applicable* = Lab report not available to specify reporting limitmg/LShield Engineering, INC.NCAC 2L Groundwater Standard(1)DWM Vapor Intrusion Non-Residential GWSLs(2)https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/The Keith Corporation (TKC)/2021 New Building/EMP/EMP Tables9/30/2021Table 2 (Page 1 of 2)Hart & Hickman, PC
Table 2 (Page 2 of 2)Summary of Groundwater Analytical DataAquAir II Brownfields PropertyCharlotte, North CarolinaH&H Job No. TKC-004Sampled ByDelta Environmental ConsultantsSample ID MW-1 MW-2 MW-3 MW-4* MW-5* MW-6 MW-7* MW-8* MW-9 MW-10 RW-2 RW-3Most Recent Sample Date 7/28/2011 7/28/2011 7/28/2011 3/2/20053/2/2005 7/28/2011 3/3/1992 3/2/20057/28/2011 7/28/2011 9/22/2006 9/22/2006Well Depth (ft bgs) 27272522272215222022105150UnitsVOCs (8260)Benzene<0.0010 <0.0010 <0.0010 BRL BRL <0.0010 NA BRL <0.0010 <0.0010 <0.100 <0.0100.001 0.069Carbon Tetrachloride0.07250.0025<0.0010 BRL BRL <0.0010 <0.010 BRL <0.0010 <0.00108.82.00.0003 0.018Chloroform0.2460.0081 0.0036BRL BRL <0.0010 <0.005 BRL0.0018<0.00102.21.70.07 0.0361,1-Dichloroethane 0.0035<0.0010 <0.0010 BRL BRL <0.0010 <0.005 BRL <0.0010 <0.0010 <0.100 <0.0100.006 0.331,2-Dichloroethane0.0129<0.0010 <0.0010 BRL BRL <0.0010 NA BRL <0.0010 <0.0010 <0.100 <0.0100.0004 0.0981,1-Dichloroethene<0.00100.0128 0.001BRL BRL <0.0010 <0.005 BRL <0.0010 <0.0010 <0.1000.088 0.35 0.16cis-1,2-Dichloroethene 0.0045<0.0010 <0.0010 BRL BRL <0.0010 BRL BRL <0.0010 <0.0010 <0.1000.0760.07 NEMethylene Chloride<0.0020 <0.0020 <0.0020 BRL BRL <0.00200.008 BBRL <0.0020 <0.00200.25 0.3200.005 4.01,1,1,2-Tetrahloroethane<0.0010 <0.0010 <0.0010 NA NA <0.0010 NA NA <0.0010 <0.0010 NA NA0.001 0.016Tetrachloroethene0.06390.1640.0031BRL BRL <0.0010 <0.005 BRL0.0019<0.00101.11.00.0007 0.0481,1,1-Trichloroethane 0.002<0.0010 <0.0010 BRL BRL <0.0010 <0.005 BRL <0.0010 <0.0010 <0.1000.025 0.2 6.21,1,2-Trichloroethane 0.0037<0.0010 <0.001 BRL BRL <0.0010 <0.005 BRL <0.0010 <0.0010 <0.100 <0.0100.006 0.0052Trichloroethene0.02310.02480.0018BRL BRL <0.0010 <0.005 BRL0.0019<0.00100.530.5500.003 0.0044SVOCs (8270)NA BRL NA NA NA BRL NA NA NA BRL NA NA----RCRA Metals (3010/3030c/245.1)ArsenicNA0.0067NA BRL BRL0.0054NA BRL NA0.0052NA NA0.01--ChromiumNA0.0175NA NA NA <0.0050 NA NA NA <0.0050 NA NA0.01--Chromium IIINA0.0175NA NA NA <0.0050 NA NA NA <0.0050 NA NANE--Chromium VINA <0.000050 NA NA NA <0.00005 NA NA NA <0.000050 NA NANE--ManganeseNA0.785NA NA NA0.778NA NA NA0.0171NA NA0.05--Notes:1) North Carolina Department of Environmental Quality (DEQ) 15A North Carolina Administrative Code 02L.0202 Groundwater Quality Standard (April 2013).2) DEQ Division of Waste Management (DWM) Non-Residential Vapor Intrusion Groundwater Screening Levels (GWSLs) (June 2021)Only those compounds detected above the 2L Standard or Non-Residential GWSL in at least one sample shown above (Chromium VI is shown since it was speciated.)Bold indicates an exceedance in the NCAC 2L Groundwater StandardUnderlined indicates an exceedance in the DEQ DWM Non-Residential GWSLMethod number follows parameter in parenthesismg/L = milligrams per liter; ft bgs = feet below ground surfaceVOCs = volatile organic compounds; SVOCs = Semi-VOCs; RCRA = Resource Conservation and Recovery Act; BRL = below laboratory reporting limitsNE = Not Established; NA= Not Analyzed, -- = not applicable* = Lab report not available to specify reporting limitNCAC 2L Groundwater Standard(1)DWM Vapor Intrusion Non-Residential GWSLs(2)mg/LShield Engineering, INC.Shield Engineering, INC.https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/The Keith Corporation (TKC)/2021 New Building/EMP/EMP Tables9/30/2021Table 2 (Page 2 of 2)Hart & Hickman, PC
Table 3 (Page 1 of 1)Summary of Soil Gas Analytical Data AquAir II Brownfields Property Charlotte, North CarolinaHart & Hickman Project No. TKC-004Carbon TetrachlorideChlorobenzeneChloroform1,2-Dichloroethane1,1-DichloroethyleneEthylbenzeneHexachlorobutadiene1,1,2,2-TetrachloroethaneTetrachloroethyleneToluene1,1,1-Trichloroethane1,1,2-TrichloroethaneTrichloroethylenem,p-XyleneSSGS-1 10/28/11 TO-15H&H160 50 47<2.0 <2.07.8<5.3 <3.41,900 29 12<2.782 20SSGS-2 10/28/11 TO-15H&H300,0007311,000 1,200 27,00022<211,600 700,000150 8,900780 110,00061SSGS-3 10/28/11 TO-15H&H11<0.469.8<0.40 <0.407.4 0.30<0.6968 30 1.4<0.551.8 22SSGS-4 10/28/11 TO-15H&H13,000,000 100,000 700,000 67,000 120,000 42,000<43,00024,000 16,000,00068,0001,400,000<22,0002,000,000 34,000SSGS-5 10/28/11 TO-15H&H56,0007.58,1002.8 47<8.73,600<1416,0002.4 350<11570<17SSGS-6 10/28/11 TO-15H&H48 0.49 4.6 0.55 0.63 6.9 1.4<0.6963 26 4.8 0.25 8.6 18SSGS-7 10/28/11 TO-15H&H14<0.469.6 0.28<0.4014 0.79<0.6914 56 2.2<0.551.6 41SV-01 12/15/15 TO-15Terracon<30 <22 <23 <19 <18 <20 <200 <32 <3238<26 <26 <25 <20SV-02 12/15/15 TO-15Terracon<30 <22 <23 <19 <18 <20 <200 <21 <20270<16 <16 <16 <13SV-03 12/15/15 TO-15Terracon<30 <22 <23 <19 <18 <20 <200 <32 <32100<26 <26 <25 <20SV-04 12/15/15 TO-15Terracon<7.7 <5.6 <6.0 <5.0 <4.815<52 <8.4 <8.3130<6.7 <6.7 <6.667200 4,400 53 47 18,000 490 56 21 3,500 440,000 440,000 18 180 8,800Notes:1) North Carolina Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Non-Residential Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) (June 2021)2) Only those analytes detected in at least one sample are shown in this table3) Bold indicates compound exceeds Non-Residential SGSL NE = Not Established, µg/m3 = micrograms per cubic meter Only compounds detected above the Non-Residential SGSL in at least one sample shownTCR = target cancer riskTHQ = target hazard quotientSample IDSampling Date µg/m3Non-Residential SGSLs(1)(TCR = 1 x 10-6 and THQ = 0.2)Analytical MethodConsultanthttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/The Keith Corporation (TKC)/2021 New Building/EMP/EMP TablesEMP Tables9/30/2021Table 3 (Page 1 of 1)Hart & Hickman, PC
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
CR
CR
REVISION NO. 0
JOB NO. TKC-004
DATE: 10-4-21
FIGURE NO. 5
AQUAIR II BROWNFIELD PROPERTY
13300 SAM NEELY ROAD
CHARLOTTE, NORTH CAROLINA
SITE PLAN WITH SOIL AND SEDIMENT
SAMPLE RESULTS
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
LEGEND
LIMITS OF GROUNDWATER
CONTAMINATION
RAILROAD TRACKS
PROPOSED BUILDING
FOOTPRINT
AREA OF POSSIBLE SOIL
CONTAMINATION
SOIL/ SEDIMENT SAMPLE LOCATION
CO-LOCATED SOIL AND SOIL GAS SAMPLE
LOCATION
SOIL SAMPLE CONTAINS CONCENTRATIONS
OF VOLATILE ORGANIC COMPOUNDS OR
METALS ABOVE THE DEPARTMENT OF
ENVIRONMENTAL QUALITY (DEQ) INACTIVE
HAZARDOUS WASTE SITES BRANCH (IHSB)
JUNE 2021 INDUSTRIAL/COMMERCIAL
PRELIMINARY SOIL REMEDIATION GOALS
PSRGs (AND REGIONAL BACKGROUND FOR
METALS).
SOIL SAMPLE CONTAINS CONCENTRATIONS
OF TOTAL METALS AND/OR CHLORINATED
VOLATILE ORGANIC COMPOUNDS WHICH
EXCEED 20 TIMES THE TOXICITY
CHARACTERISTIC LEACHING PROCEDURE
REGULATORY LEVEL AND INDUSTRIAL /
COMMERCIAL PSRGs.
SOIL SAMPLE DID NOT CONTAIN
CONCENTRATIONS OF CONTAMINANTS OF
INTEREST ABOVE THE INDUSTRIAL /
COMMERCIAL PSRGs.
SOURCES
1.SITE PLAN PROVIDED BY BURTON ENGINEERING.
2.BASE MAP OF THE HISTORICAL FEATURES FROM
S&ME, REMEDIAL INVESTIGATION REPORT,
OCTOBER 2011.
3.AERIAL PHOTOGRAPH FROM MECKLENBURG
COUNTY GIS.
SB-17
SB-11
SB-13
SB-16
SB-15
SED-4
SS-5
SS-8
AAH-34
APH-42S-4
SS-7
SS-4
AAH-31
SS-6 APH-59
APH-58
SS-03
APH-24 S-6
SUMP-1
SUMP-2
APH-32
SED-3
SED-5
S-3S-2S-1
SB-07
SB-10
SB-08
SB-05
SB-03
SB-02
SB-01
SB-04
SB-06
SB-12
SB-09
SB-14 AAH-38
AAH-1
AAH-09
AAH-14
AAH-17 AAH-25
AAH-33
AAH-49
AAH-47
AAH-51
APH-20
SED-1
SED-2
SED-7
SED-6
SS-03
SS-4
FORMER
PRODUCTION
BUILDING
FORMER
LAB
BUILDING
SB-13
APH-38
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
CR
CR
REVISION NO. 0
JOB NO. TKC-004
DATE: 10-4-21
FIGURE NO. 6
AQUAIR II BROWNFIELD PROPERTY
13300 SAM NEELY ROAD
CHARLOTTE, NORTH CAROLINA
SITE PLAN WITH GROUNDWATER SAMPLE
RESULTS
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
LEGEND
LIMITS OF GROUNDWATER CONTAMINATION
RAILROAD TRACKS
PROPOSED BUILDING
FOOTPRINT
AREA OF POSSIBLE SOIL
CONTAMINATION
SHALLOW GROUNDWATER MONITORING
WELL LOCATION
DEEP GROUNDWATER MONITORING WELL
LOCATION
GROUNDWATER RECOVERY WELL
LOCATION
GROUNDWATER SAMPLE CONTAINS
CONCENTRATIONS OF VOLATILE ORGANIC
COMPOUNDS (VOCs) AND/OR METALS THAT
EXCEED THE NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL
QUALITY (DEQ) 15A NORTH CAROLINA
ADMINSTRATIVE CODE (NCAC) 02L:0202
(2L STANDARDS) GROUNDWATER QUALITY
STANDARD (APRIL 2013).
GROUNDWATER SAMPLE CONTAINS
CONCENTRATIONS OF VOCs OR METALS
THAT EXCEED THE DEQ 2L STANDARDS
AND ARE ABOVE THE DEQ DIVISION OF
WASTE MANAGEMENT (DWM)
NON-RESIDENTIAL VAPOR INTRUSION
GROUNDWATER SCREENING LEVELS
(GWSL) (JUNE 2021).
GROUNDWATER SAMPLE DID NOT CONTAIN
CONCENTRATIONS OF CONTAMINANTS OF
INTEREST ABOVE 2L STANDARD OR
NON-RESIDENTIAL GWSLs.
SOURCES
1.SITE PLAN PROVIDED BY BURTON ENGINEERING.
2.BASE MAP OF THE HISTORICAL FEATURES FROM
S&ME, REMEDIAL INVESTIGATION REPORT,
OCTOBER 2011.
3.AERIAL PHOTOGRAPH FROM MECKLENBURG
COUNTY GIS.
AMW-612
AMW-405
AMW-410
MW-9
DW-2
AMW-503AMW-403
DW-3 MW-6
MW-7
MW-5
MW-10
DW-4
MW-4
AMW-411
RW-3
MW-3
MW-2
AMW-101
MW-1
RW-2
MW-8 DW-1
AMW-106
DW-3
MW-1
FORMER
PRODUCTION
BUILDING
FORMER
LAB
BUILDING
MW-9
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
CR
CR
SSGS-2
SSGS-5
SSGS-4
SSGS-1
SSGS-3
SV-03
SV-02
SV-01
SV-04
SSGS-6
SSGS-7
REVISION NO. 0
JOB NO. TKC-004
DATE: 10-4-21
FIGURE NO. 7
AQUAIR II BROWNFIELD PROPERTY
13300 SAM NEELY ROAD
CHARLOTTE, NORTH CAROLINA
SITE PLAN WITH SOIL GAS SAMPLE RESULTS
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
LEGEND
LIMITS OF GROUNDWATER CONTAMINATION
RAILROAD TRACKS
PROPOSED BUILDING
FOOTPRINT
AREA OF POSSIBLE SOIL
CONTAMINATION
SUB-SURFACE SOIL-GAS SAMPLE LOCATION
CO-LOCATED SOIL AND SOIL GAS SAMPLE
LOCATION
SOIL GAS SAMPLE CONTAINS
CONCENTRATIONS OF VOLATILE ORGANIC
COMPOUNDS (VOCs) ABOVE THE NORTH
CAROLINA DEPARTMENT OF
ENVIRONMENTAL QUALITY (DEQ) DIVISION
OF WASTE MANAGEMENT (DWM)
NON-RESIDENTIAL SUB-SLAB AND
EXTERIOR SOIL GAS SCREENING LEVELS
(SGSLs) (JUNE 2021)
SOIL GAS SAMPLE DID NOT CONTAIN
CONCENTRATIONS OF VOCs ABOVE
NON-RESIDENTIAL SGSLs.
SOURCES
1.SITE PLAN PROVIDE BY BURTON ENGINEERING.
2.BASE MAP OF THE HISTORICAL FEATURES FROM
S&ME, REMEDIAL INVESTIGATION REPORT,
OCTOBER 2011.
3.AERIAL PHOTOGRAPH FROM MECKLENBURG
COUNTY GIS.
SSGS-4
FORMER
PRODUCTION
BUILDING
FORMER
LAB
BUILDING
SSGS-7

Appendix C Vapor Intrusion Mitigation Plan – VM-1, VM-2, VM-3, and VM-4
H&H NO. TKC-008
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
SPECIFICATIONSHD CHARLOTTE BCR FDC13300 SAM NEELY ROADCHARLOTTE, NORTH CAROLINADEVELOPER:
THE KEITH
CORPORATION
VM-1
PROFESSIONAL
APPROVAL
REVISION 0
JANUARY 13, 2022
VAPOR INTRUSION MITIGATION SYSTEM (VIMS) SPECIFICATIONS
1.THIS VAPOR INTRUSION MITIGATION PLAN IS INTENDED TO BE USED FOR DIRECTION OF VIMS COMPONENT INSTALLATION ONLY AND IS NOT INTENDED TO GUIDE CONSTRUCTION OF STRUCTURAL COMPONENTS NOT
RELATED TO THE VIMS. CONSTRUCTION CONTRACTOR SHALL VERIFY CONSISTENCY OF VIMS DETAILS WITH APPLICABLE STRUCTURAL, ARCHITECTURAL, MECHANICAL, AND PLUMBING PLANS AND RESOLVE
INCONSISTENCIES WITH THE DESIGN ENGINEER PRIOR TO VIMS INSTALLATION. THE VIMS SHALL BE INSTALLED IN ACCORDANCE WITH APPLICABLE BUILDING CODES.
2.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS SHALL USE "LOW OR NO VOC" PRODUCTS AND MATERIALS, WHEN POSSIBLE. NO PRODUCTS CONTAINING TETRACHLOROETHENE OR TRICHLOROETHENE
ARE PERMITTED.
3.VIMS VAPOR LINER SHALL BE VAPORBLOCK PLUS 20 VAPOR BARRIER MANUFACTURED BY RAVEN INDUSTRIES, INC (OR, EQUIVALENT ALTERNATIVE VAPOR LINER APPROVED BY THE ENGINEER AND NORTH
CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY (DEQ); I.E., DRAGO WRAP 20-MIL VAPOR INTRUSION BARRIER MANUFACTURED BY STEGO INDUSTRIES, LLC). ALTERNATIVE VAPOR LINER (IF USED) SHALL BE A
POLYOLEFIN FILM DESIGNED TO PREVENT VAPOR MIGRATION THROUGH CONCRETE SLABS-ON-GRADE.
THE VAPOR LINER SHALL BE INSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER INSTALLATION INSTRUCTIONS TO CREATE A CONTINUOUS LINER BELOW GROUND FLOOR SLABS. A BASE COURSE
CONSISTING OF CLEAN #57 (OR SIMILAR HIGH PERMEABILITY STONE APPROVED BY THE ENGINEER) SHALL BE INSTALLED BENEATH THE VIMS VAPOR LINER. IN AREAS AROUND THE SUB-SLAB PIPING, THE BASE
COURSE LAYER MUST BE THICK ENOUGH TO COVER THE SUB-SLAB PIPING WITH A MINIMUM 1-INCH LAYER BELOW THE PIPING. IN AREAS WITHOUT PIPING, THE BASE COURSE SHALL BE A MINIMUM OF 4-INCHES
THICK.
4.ALL PENETRATIONS SHALL BE SEALED ACCORDING TO VAPOR LINER MANUFACTURER INSTALLATION INSTRUCTIONS AS FOUND IN THE MANUFACTURER INSTALLATION GUIDELINES. IF VAPORBLOCK PLUS 20 IS USED,
SMALL PUNCTURE HOLES SHALL BE SEALED WITH THE VAPORSEAL™TAPE, BUTYL SEAL DOUBLE SIDED TAPE, POUR-N-SEAL™AND LARGER HOLES, TEARS, OR DAMAGE SHALL BE REPAIRED USING A PATCH THAT
OVERLAPS THE DAMAGED AREA AND THEN SHALL BE TAPED ALONG THE SEAMS. IN AREAS WHERE UTILITY PENETRATIONS (I.E. PIPING, DUCTS, ETC) ARE PRESENT AND THE USE OF TAPING IS NOT PRACTICAL OR
DEEMED AS "INEFFECTIVE" BY THE DESIGN ENGINEER, POUR-N-SEAL SHALL BE POURED INTO FORM TO PATCH THE PENETRATION WITH AN AIRTIGHT SEAL. ANY LOCATIONS WHERE POUR-N-SEAL™ IS USED WILL BE
DOCUMENTED DURING INSPECTIONS.
5.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 STAKES (I.E. SOLID METAL STAKES) SHALL BE USED. IN ALL CASES, AS FORM BOARDS ARE
REMOVED, THE CONTRACTOR OR SUB-CONTRACTORS SHALL SEAL ALL PENETRATIONS IN ACCORDANCE WITH VAPOR LINER MANUFACTURER INSTALLATION INSTRUCTIONS.
6.VIMS BELOW AND ABOVE GRADE PIPING SHALL NOT BE TRAPPED AND SHALL BE SLOPED A MINIMUM OF 18 UNIT VERTICAL IN 12 UNITS HORIZONTAL (1% SLOPE) TO GRAVITY DRAIN. SOLID SECTIONS OF HORIZONTAL
COLLECTION PIPE SHALL BE SUPPORTED TO PREVENT PIPE SAG OR LOW POINT AND MAINTAIN 1% SLOPE TOWARD SLOTTED SECTIONS TO DRAIN CONDENSATION. HORIZONTAL COLLECTION PIPE SHALL CONSIST
OF 3" SCH 40 PVC. SUB-SLAB COLLECTION PIPING INCLUDING THREADED FLUSH JOINT OR GLUE JOINT 3" SCH 40 PVC PIPE WITH 0.020" TO 0.060" SLOT WIDTH AND 1
8" SLOT SPACING. ALTERNATIVE SUB-SLAB PIPING
INCLUDING SCH 40 PVC PERFORATED PIPE WITH 5
8" OR SMALLER DIAMETER PERFORATIONS WITH SIMILAR AIR FLOW CHARACTERISTICS TO THE SLOTTED PVC OR SOIL GAS COLLECTOR MAT MAY BE USED WITH
APPROVAL BY THE DESIGN ENGINEER. FOAM PIPE SLEEVES, OR SIMILAR, SHALL BE INSTALLED AROUND HORIZONTAL PORTIONS OF PIPES THAT PENETRATE CONCRETE FOOTERS AND WALLS PER APPLICABLE
STRUCTURAL PLANS AND BUILDING CODES, OR AS OTHERWISE DIRECTED BY THE APPLICABLE PLANS AND CONSTRUCTION ENGINEERS. PIPE SLEEVES SHALL BE PROPERLY SEALED TO PREVENT A PREFERENTIAL
AIR PATHWAY FROM BELOW THE SLAB INTO THE BUILDING.
7.3" SCH 40 PVC RISER DUCT PIPING IN THE GUARDHOUSE AND 6" SCH 40 PVC RISER DUCT PIPING IN THE WAREHOUSE SHALL BE INSTALLED TO CONNECT EACH SLAB PENETRATION LOCATIONS TO A ROOFTOP
EXHAUST DISCHARGE POINT WITH A TURBINE VENTILATOR (SEE DETAIL #13). ABOVE-SLAB RISER DUCT PIPE RUNS BETWEEN THE SLAB PENETRATION AND THE ROOFTOP EXHAUST DISCHARGE SHALL BE INSTALLED
PER APPLICABLE NORTH CAROLINA PLUMBING AND BUILDING CODES AND AS SPECIFIED IN THE CONSTRUCTION DOCUMENTS AND DRAWINGS.
8.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. AN EMPIRE MODEL STAINLESS STEEL TURBINE
VENTILATOR (OR APPROVED ALTERNATE) SHALL BE INSTALLED ON THE EXHAUST DISCHARGE END OF EACH RISER DUCT PIPE. AN ADAPTOR COUPLING SHALL BE INSTALLED AT THE DISCHARGE END OF THE 6"
RISER DUCT PIPE (3" IN THE GUARDHOUSE) AND THE VENTILATOR SHALL BE SECURED TO THE PVC RISER IN A VERTICAL ORIENTATION. 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 INTRUSION MITIGATION PLAN MAY BE REPOSITIONED AS LONG AS THE NEW
POSITION MEETS THE REQUIREMENTS PRESENTED ABOVE. AN ELECTRICAL JUNCTION BOX (120V, 60Hz AC REQUIRED) SHALL BE INSTALLED NEAR THE FAN LOCATION ON THE ROOFTOP FOR CONVERSION TO
ELECTRIC FANS, IF REQUIRED. ALL WIRING AND ELECTRICAL SHALL BE INSTALLED PER APPLICABLE BUILDING AND ELECTRICAL CODES.
9.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". THE TURBINE VENTILATOR SHALL BE LABELED WITH "VAPOR MITIGATION SYSTEM - CONTACT MAINTENANCE IF DAMAGED".
10.NO COMPONENT OF THE VIMS SHALL BE COVERED WITHOUT BEING INSPECTED AND APPROVED BY THE ENGINEER OR ENGINEER'S DESIGNEE. INSPECTIONS OF EACH COMPONENT OF THE VIMS SHALL BE
CONDUCTED BY THE ENGINEER, OR ENGINEER'S DESIGNEE, TO CONFIRM VIMS COMPONENTS ARE INSTALLED PER THE APPROVED DESIGN. THE REQUIRED INSPECTIONS INCLUDE: (1) INSPECTION OF SUB-SLAB
PIPING LAYOUT AND GRAVEL PLACEMENT PRIOR TO INSTALLING VAPOR LINER; (2) INSPECTION OF VAPOR LINER PRIOR TO POURING CONCRETE; (3) INSPECTION OF ABOVE-GRADE PIPING LAYOUT; AND (4)
INSPECTION OF FAN AND VENT PIPE CONNECTIONS. THE CONSTRUCTION CONTRACTOR(S) SHALL COORDINATE WITH THE ENGINEER TO PERFORM THE REQUIRED INSPECTIONS.
VIMS VAPOR LINER AND BASE COURSE (TYP)
VAPOR LINER (SEE SPECIFICATION #3)
CONCRETE FLOOR SLAB
SUB-BASE
VM2
BASE COURSE - CLEAN #57 STONE (WASHED
WITH NO FINES), MIN 4" THICK BENEATH VIMS
VAPOR LINER IN AREAS WITHOUT PIPING
ABC STONE (ONLY PRESENT IN WAREHOUSE)
1
NTS
PROTECTIVE COVER
(PLASTIC SHEETING,
GEOTEXTILE LAYER,
OR SIMILAR)
VIMS SLOTTED COLLECTION PIPING (TYP)
3" SCH 40 THREADED FLUSH JOINT
SLOTTED PVC PIPE (0.020" SLOT WIDTH,
1/8" SLOT SPACING)
SET WITHIN MIN 5" BASE COURSE
(SEE SPECIFICATIONS #3 AND #6)
VAPOR LINER (SEE SPECIFICATION #3
SUB-BASE
NTS
CONCRETE FLOOR SLAB
ABC STONE
VM2
2
PROTECTIVE COVER
(PLASTIC SHEETING,
GEOTEXTILE LAYER,
OR SIMILAR)
SECTION THROUGH EXTERIOR WALL
NTSVM2
BRICK OR BUILDING SIDING
EXTERNAL WALL (NOT
PRESENT AT ALL LOCATIONS)
3
EXTERIOR GRADE
BASE COURSE
(SEE SPECIFICATION #3)
VAPOR BARRIER SEALED TO COLUMN AT
EXTERIOR WALLS
ABC STONE
PROTECTIVE COVER (PLASTIC
SHEETING, GEOTEXTILE LAYER,
OR SIMILAR)
4A
NTSVM2
2" SCH 40 PVC 90 DEGREE ELBOW
VAPOR LINER PENETRATION SEALED TO
PIPE PER MANUFACTURER INSTRUCTIONS2" VENT SCREEN AT
END OF PIPE
EXTERNAL/STUD WALL
(NOT PRESENT IN ALL
LOCATIONS)
2" SOLID SCH 40 PVC
VACUUM MEASURING POINT
POSITION VACUUM
MONITORING POINT SO VENT
SCREEN IS AT LEAST 5 FT FROM
AN EXTERNAL WALL
2' MIN
EXTERNAL/STUD WALL
(NOT PRESENT IN ALL
LOCATIONS)
FLOOR CLEANOUT, ADJUSTABLE,
4" DIA ZURN INDUSTRIES
MODEL #CO2450-PV4 (OR ENGINEER
APPROVED EQUIVALENT)FLUSH WITH
FINISHED FLOOR
VIMS VACUUM MEASURING POINT - DETAIL VIEW
NTSVM2
4B
FINISHED FLOOR SLAB
2" DRAIN EXPANSION TEST PLUG
ABC STONE
FLOOR CLEANOUT, ADJUSTABLE, 4" DIA ZURN
INDUSTRIES MODEL #CO2450-PV4 (OR
ENGINEER APPROVED EQUIVALENT) FLUSH
WITH FINISHED FLOOR
4" x 2" FLUSH REDUCER
BUSHING
VAPOR BARRIER PENETRATION SEALED TO
PIPE PER MANUFACTURER INSTRUCTIONS
2" SOLID SCH 40 PVC
NEW FOOTING
VAPOR BARRIER (SEE
SPECIFICATION #3)
BASE COURSE (SEE
SPECIFICATION #3)
SUBBASE
MONITORING POINT AT STEEL COLUMN (TYPICAL)
NTS
2" SCH SOLID PVC PIPE SET
WITHIN 5" BASE COURSE
VAPOR BARRIER PENETRATION SEALED TO
PIPE PER MANUFACTURERS INSTRUCTIONS
STEEL I-BEAM COLUMN
2" SCH 40 PVC
90° ELBOW
VM2
5
2" DRAIN EXPANSION TEST PLUG
VAPOR LINER SEALED TO COLUMN PER
MANUFACTURER INSTRUCTIONS
TYPICAL VIMS LINER ABOVE COLUMN FOOTING6
NTSVM2
BASE COURSE
(SEE SPECIFICATION #3)
VAPOR BARRIER SEALED TO CONCRETE
PER MANUFACTURER INSTRUCTIONS
ABC STONE
BASE COURSE
(SEE SPECIFICATION #3)
VAPOR LINER SEALED TO COLUMN PER
MANUFACTURER INSTRUCTIONS
TYPICAL RISER AT COLUMN FOOTING7
NTSVM2
ABC STONE
SUBBASE
STEEL COLUMN
TO DISCHARGE
POINT ON ROOF
VAPOR BARRIER PENETRATION
SEALED TO PIPE PENETRATION PER
MANUFACTURER INSTRUCTIONS
FOOTING
6" SCH 40 SOLID PVC
RISER TO ROOF
3" SCH 40 SOLID PVC PIPE SET
WITHIN 5" BASE COURSE
(SEE SPECIFICATION #3)
6" TO 3" SCH 40 SOLID PVC PIPE 45
DEGREE REDUCER
8
NTSVM2
SINGLE RISER EXTRACTION POINT IN GUARDHOUSE
EXTERIOR WALL
3" PVC RISER DUCT PIPE.
OPEN-ENDED 3" DIA PVC
90-DEGREE ELBOW PLACED
WITHIN BASE COURSE
EXTERIOR GRADE
SUB-BALLAST
RAIL BALLAST
TOP OF RAIL
ELEVATION
VAPOR BARRIER SET
BETWEEN SUBGRADE
AND SUB-BALLAST
APPROXIMATELY 2.3 FT
BELOW TOP OF RAIL
ELEVATION
EXTERIOR WALL
6" PVC RISER DUCT PIPE.
FINISHED WAREHOUSE
FLOOR ELEVATION
RETAINING WALL AT
RAIL LINE- SEE DETAIL
#11
EXTERIOR
GRADE
VAPOR LINER SHALL
EXTEND ALONG
FOOTING EXTERIOR
IF POSSIBLE AT
LOCATIONS WHERE
EXTERIOR GRADE IS
HIGHER THAN
INTERIOR GRADE
RISER IN RAIL LINE
NTSVM2
9
BASE COURSE
AROUND RISER
INLET
RAIL LINE AT EXTERIOR BUILDING WALL
NTSVM2
10
SUB-BALLAST
RAIL BALLAST
TOP OF RAIL
ELEVATION
VAPOR BARRIER SET
BETWEEN SUBGRADE
AND SUB-BALLAST
APPROXIMATELY 2.3 FT
BELOW TOP OF RAIL
ELEVATION
EXTERIOR WALL
6" PVC RISER DUCT PIPE.
FINISHED WAREHOUSE
FLOOR ELEVATION
RETAINING WALL AT
RAIL LINE- SEE DETAIL
#11
EXTERIOR
GRADE
VAPOR LINER SHALL EXTEND
ALONG FOOTING EXTERIOR
IF POSSIBLE AT LOCATIONS
WHERE EXTERIOR GRADE IS
HIGHER THAN INTERIOR
GRADE
PROTECTIVE COVER (PLASTIC
SHEETING, GEOTEXTILE LAYER, OR
SIMILAR)
VIMS TURBINE VENTILATOR FAN & EXHAUST (TYPICAL)
NTS
TURBINE VENTILATOR FAN
(EMPIRE MODEL TV06SS OR ENGINEER
APPROVED EQUIVALENT)
ELECTRICAL JUNCTION BOX FOR POTENTIAL FUTURE
VACUUM FAN (REFER TO SPECIFICATION #8)
RISER DUCT PIPE THROUGH ROOF
FLASHING
ROOFTOP
6" HEAVY DUTY NO HUB
COUPLING
VM2
13
PLEASE NOTE: THE RISER IN THE
GUARDHOUSE SHALL BE 3" SCH 40 PVC
CONNECTED TO A 4" TURBINE VENTILATOR
(TV04SS) AT THE ROOF USING A 3" TO 4"
ADAPTOR.
RETAINING WALL AT RAIL LINE
NTSVM2
11
RAIL LINE
INTERIOR
WAREHOUSE
SPACE
HANDRAIL
VAPOR LINER
(SEE SPECIFICATION #3)
SUBBASE
CONCRETE FLOOR SLAB
SUB-BALLAST
RAIL BALLAST
TOP OF RAIL
ELEVATION
VAPOR BARRIER SET BETWEEN SUBGRADE AND
SUB-BALLAST APPROXIMATELY 2.3 FT BELOW TOP OF
RAIL ELEVATION
VIMS VAPOR LINER AT FLOOR DRAIN
NTS
CONCRETE FLOOR
SLAB SLOPED
TOWARD DRAIN
BASE COURSE
(SEE SPECIFICATION #3)
VAPOR LINER
(SEE SPECIFICATION #3)
SUB-BASE
VM2
12
FLOOR DRAIN
ABC STONE
PROTECTIVE COVER
(PLASTIC SHEETING,
GEOTEXTILE LAYER,
OR SIMILAR)
H&H NO. TKC-008
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 DETAILSHD CHARLOTTE BCR FDC13300 SAM NEELY ROADCHARLOTTE, NORTH CAROLINADEVELOPER:
THE KEITH
CORPORATION
VM-2
PROFESSIONAL
APPROVAL
REVISION 0
JANUARY 13, 2022
FDFDFDFDFDFDCR FDCRCR
TCTC
FD
FD
FD
CR
CRFD
FDEFLT/FTG. = -5'-0"T/FTG. = -2'-0"SPARTIAL PLANSEE SHEET S-103PARTIAL PLANSEE SHEET S-104MATCH
LINE T/FTG. = -5'-0"T/FTG. = -2'-0"SMP-9
MP-6
MP-4
MP-10
MP-1
MP-5
MP-3
MP-11
MP-7
INTERIOR RAIL LINE SPUR
MP-2
MP-8
E-27
E-23
E-16
E-2
E-9
E-5
E-11
E-18
E-29
E-7
E-19
E-25
E-3
E-14
E-30
E-26
E-21
E-22
E-1
E-10
E-17
E-28
E-6
E-12 E-13
E-4
E-8
E-15
E-24
E-20
E-31 E-32 E-33 E-34 E-35
H&H NO. TKC-008
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
SUB-SLAB LAYOUT -
WAREHOUSEHD CHARLOTTE BCR FDC13300 SAM NEELY ROADCHARLOTTE, NORTH CAROLINADEVELOPER:
THE KEITH
CORPORATION
VM-3
PROFESSIONAL
APPROVAL
REVISION 0
JANUARY 13, 2022LEGEND
EXTENT OF VAPOR LINER
SOIL GAS COLLECTION SYSTEM (SEE SPECIFICATION #6 ON
VM-1)
6" DIA SCH 40 SOLID PVC VERTICAL RISER WITH FAN
IDENTIFICATION NUMBER
2" DIA SOLID PVC PRESSURE MONITORING POINT AND
PROPOSED SUB-SLAB SOIL GAS SAMPLE LOCATION
E-7
MP-4
3
VM2
1
VM2
2
VM2
7
VM2
4A
VM2
5
VM2
6
VM2
7
VM2
10
VM2
9
VM2
12
VM2
9
VM2
11
VM2
FDEF
L
WATER TANK
FIRE PUMPHOUSE
MP-11
GUARD HOUSE
E-31
H&H NO. TKC-008
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
SUB-SLAB LAYOUT -
GUARDHOUSE & FIRE
PUMPHOUSEHD CHARLOTTE BCR FDC13300 SAM NEELY ROADCHARLOTTE, NORTH CAROLINADEVELOPER:
THE KEITH
CORPORATION
VM-4
PROFESSIONAL
APPROVAL
REVISION 0
JANUARY 13, 2022LEGEND
EXTENT OF VAPOR LINER
3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH FAN
IDENTIFICATION NUMBER
2" DIA SOLID PVC PRESSURE MONITORING POINT AND
PROPOSED SUB-SLAB SOIL GAS SAMPLE LOCATION
E-31
MP-11
3
VM2
4A
VM2
1
VM2
8
VM2
3
VM2

Appendix D Vapor Intrusion Mitigation System Product Specifications
PRODUCT PART #
VaporBlock® Plus™ 20 ................................................................ VBP20
UNDER-SLAB VAPOR / GAS BARRIER
Under-Slab Vapor/Gas Retarder
© 2018 RAVEN INDUSTRIES INC. All rights reserved.
VAPORBLOCK® PLUS™VBP20
PRODUCT DESCRIPTION
VaporBlock® Plus™ is a seven-layer co-extruded barrier
made using high quality virgin-grade polyethylene and
EVOH resins to provide unmatched impact strength as well
as superior resistance to gas and moisture transmission.
VaporBlock® Plus™ 20 is more than 100 times less permeable
than typical high-performance polyethylene vapor retarders
against Methane, Radon, and other harmful VOCs. Tested and
verified for unsurpassed protection against BTEX, HS, TCE, PCE,
methane, radon, other toxic chemicals and odors.
VaporBlock® Plus™ 20 multi-layer gas barrier is manufactured
with the latest EVOH barrier technology to mitigate hazardous
vapor intrusion from damaging indoor air quality, and the safety
and health of building occupants. VBP20 is one of the most
effective underslab gas barriers in the building industry today
far exceeding ASTM E-1745 (Plastic Water Vapor Retarders
Used in Contact with Soil or Granular Fill Under Concrete Slabs)
Class A, B and C requirements. Available in a 20 (Class A) mil
thicknesses designed to meet the most stringent requirements.
VaporBlock® Plus™ 20 is produced within the strict guidelines
of our ISO 9001 Certified Management System.
PRODUCT USE
VaporBlock® Plus™ 20 resists gas and moisture migration
into the building envelop when properly installed to provide
protection from toxic/harmful chemicals. It can be installed as
part of a passive or active control system extending across the
entire building including floors, walls and crawl spaces. When
installed as a passive system it is recommended to also include
a ventilated system with sump(s) that could be converted to an
active control system with properly designed ventilation fans.
VaporBlock® Plus™ 20 works to protect your flooring and
other moisture-sensitive furnishings in the building’s interior
from moisture and water vapor migration, greatly reducing
condensation, mold and degradation.
SIZE & PACKAGING
VaporBlock® Plus™ 20 is available in 10’ x 150’ rolls to
maximize coverage. All rolls are folded on heavy-duty cores
for ease in handling and installation. Other custom sizes
with factory welded seams are available based on minimum
volume requirements. Installation instructions and ASTM E-1745
classifications accompany each roll.
APPLICATIONS
Radon Barrier
Methane Barrier
VOC Barrier
Brownfields Barrier
Vapor Intrusion Barrier
Under-Slab Vapor Retarder
Foundation Wall Vapor Retarder
VaporBlock® Plus™ is a seven-layer co-extruded barrier made using high quality virgin-grade polyethylene and EVOH resins to provide unmatched impact strength as well as superior resistance to gas and moisture transmission.
VaporBlock® Plus™ Placement
All instructions on architectural or structural drawings should be reviewed and followed.
Detailed installation instructions accompany each roll of VaporBlock® Plus™ and can also be located at www.ravenefd.com.
ASTM E-1643 also provides general installation information for vapor retarders.
VAPORBLOCK® PLUS™ 20
PROPERTIES TEST METHOD IMPERIAL METRIC
AppeArAnce White/Gold
Thickness, nominAl 20 mil 0.51 mm
WeighT 102 lbs/MSF 498 g/m²
clAssificATion ASTM E 1745 CLASS A, B & C
³ Tensile sTrengTh
ASTM E 154Section 9(D-882)58 lbf 102 N
impAcT resisTAnce ASTM D 1709 2600 g
permeAnce (neW mATeriAl)
ASTM E 154Section 7ASTM E 96Procedure B
0.0098 Perms
grains/(ft²·hr·in·Hg)
0.0064 Perms
g/(24hr·m²·mm Hg)
permeAnce (AfTer condiTioning)
(sAme meAsuremenT As Above permeAnce)
ASTM E 154Section 8, E96Section 11, E96Section 12, E96Section 13, E96
0.00790.00790.00970.0113
0.00520.00520.00640.0074
WvTr ASTM E 96Procedure B 0.0040 grains/hr-ft²0.0028 gm/hr-m²
benzene permeAnce See Note ⁶1.13 x 10-¹⁰ m²/sec or 3.62 x 10-¹³ m/s
Toluene permeAnce See Note ⁶1.57 x 10-¹⁰ m²/sec or 1.46 x 10-¹³ m/s
eThylbenzene permeAnce See Note ⁶1.23 x 10-¹⁰ m²/sec or 3.34 x 10-¹⁴ m/s
m & p-Xylenes permeAnce See Note ⁶1.17 x 10-¹⁰ m²/sec or 3.81 x 10-¹⁴ m/s
o-Xylene permeAnce See Note ⁶1.10 x 10-¹⁰ m²/sec or 3.43 x 10-¹⁴ m/s
hydrogen sulfide See Note 9 1.92E-⁰⁹ m/s
TrichloroeThylene (Tce) See Note ⁶7.66 x 10-¹¹ m²/sec or 1.05 x 10-¹⁴ m/s
perchloroeThylene (pce)See Note ⁶7.22 x 10-¹¹ m²/sec or 1.04 x 10-¹⁴ m/s
rAdon diffusion coeffiecienT K124/02/95 < 1.1 x 10-13 m2/s
meThAne permeAnce ASTM D 1434 3.68E-¹² m/sGas Transmission Rate (GTR):0.32 mL/m²•day•atm
mAXimum sTATic use TemperATure 180° F 82° C
minimum sTATic use TemperATure - 70° F - 57° C
UNDER-SLAB VAPOR / GAS BARRIER
VAPORBLOCK® PLUS™VBP20
© 2018 RAVEN INDUSTRIES INC. All rights reserved.
Scan QR Code to download
current technical data sheets
via the Raven website.
Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be performed for applicability in specific applications and/or conditions. RAVEN INDUSTRIES MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at www.RavenEFD.com
061318 EFD 1125
RAVEN ENGINEERED FILMSP.O. Box 5107 Sioux Falls, SD 57117-5107Ph: [phone] • TF: [phone] [e-mail]
³ Tests are an average of machine and transverse directions.5 Raven Industries performs seam testing at 20” per minute.6 Aqueous Phase Film Permeance. Permeation of Volatile Organic Compounds through EVOH Thin Film Membranes and Coextruded LLDPE/EVOH/
LLDPE Geomembranes, McWatters and Rowe, Journal of Geotechnical and Geoenvironmental Engineering© ASCE/
September 2015. (Permeation is the Permeation Coefficient adjusted to actual film thickness - calculated at 1 kg/m³.)
The study used to determine PCE and TCE is titled: Evaluation of diffusion of PCE & TCE through high performance geomembranes by Di
Battista and Rowe, Queens University 8 Feb 2018.9 The study used to determine diffusion coefficients is titled: Hydrogen Sulfide (H₂S) Transport through Simulated Interim Covers with Conventional and Co-Extruded Ethylene-Vinyl Alcohol (EVOH) Geomembranes.
INSTALLATION GUIDELINES - With VaporSeal™ Tape
VaporSeal™
4” Tape
VaporSeal™ 4” Tape Optional Butyl Seal
2-Sided Tape
Gas Barrier Applications
Elements of a moisture/gas-resistant floor system. General illustration only.(Note: This example shows multiple options for waterstop placement.
VaporSeal™
4” Tape
VaporSeal™ 4” Tape Optional Butyl Seal
2-Sided Tape
Gas Barrier Applications
Fig. 2: VaporBlock® Plus™ Overlap Joint Sealing Methods
Fig. 1: VaporBlock® Plus™ Overlapping Roll-out Method
Please Note: Read these instructions thoroughly before installation to ensure proper use of VaporBlock® Plus™. ASTM E 1465, ASTM E 2121 and, ASTM E 1643 also provide valuable information regarding the installation of vapor / gas barriers. When installing this product, contractors shall conform to all applicable local, state and federal regulations and laws pertaining to residential and commercial building construction.
• When VaporBlock® Plus™ gas barrier is used as part of an active control system for radon or other gas, a ventilation system will be required.
• If designed as a passive system, it is recommended to install a ventilation system that could be converted to an active system if needed.
Materials List:VaporBlock® Plus™ Vapor / Gas BarrierVaporSeal™* 4” Seaming TapeVaporSeal™* 12” Seaming/Repair TapeButyl Seal 2-Sided TapeVaporBoot Plus Pipe Boots 12/Box (recommended)VaporBoot Tape (optional)POUR-N-SEAL™ (optional)1” Foam Weather Stripping (optional)Mako® Screed Supports (optional)
VAPORBLOCK® PLUS™ PLACEMENT
1.1. Level and tamp or roll granular base as specified. A base for a gas-reduction system may require a 4” to 6” gas permeable layer of clean coarse aggregate as specified by your architectural or structural drawings after installation of the recommended gas collection system. In this situation, a cushion layer consisting of a non-woven geotextile fabric placed directly under VaporBlock® Plus™ will help protect the barrier from damage due to possible sharp coarse aggregate.
1.2. Unroll VaporBlock® Plus™ running the longest dimension parallel with the direction of the pour and pull open all folds to full width. (Fig. 1)
1.3. Lap VaporBlock® Plus™ over the footings and seal with Raven Butyl Seal tape at the footing-wall connection. Prime concrete surfaces, when necessary, and assure they are dry and clean prior to applying Raven Butyl Seal Tape. Apply even and firm pressure with a rubber roller. Overlap joints a minimum of 6” and seal overlap with 4” VaporSeal™ Tape. When used as a gas barrier, overlap joints a minimum of 12” and seal in-between overlap with an optional 2-sided Raven Butyl Seal Tape. Then seal with 4” VaporSeal™ Tape centered on the overlap seam. (Fig. 2)
Page 1 of 4 Top original diagram and figure #1 were reprinted with permission by the Portland Cement Association.Reference: Kanare, Howard M., Concrete Floors and Moisture, EB119, Portland Cement Association, Skokie, Illinois, and National Ready Mixed Concrete Association, Silver Spring, Maryland, USA, 2008, 176 pages.
1.4. Seal around all plumbing, conduit, support columns or other penetrations that come through the VaporBlock® Plus™ membrane.
1.4a. Method 1: Pipes four inches or smaller can be sealed with Raven VaporBoot Plus preformed pipe boots. VaporBoot Plus preformed pipe boots are formed in steps for 1”, 2”, 3” and 4” PVC pipe or IPS size and are sold in units of 12 per box (Fig. 3 & 5).
Pipe boots may also be fabricated from excess VaporBlock® Plus™ membrane (Fig. 4 & 6) and sealed with VaporBoot Tape or VaporSeal™ Tape (sold separately).
1.4b. Method 2: To fabricate pipe boots from VaporBlock® Plus™ excess material (see Fig. 4 & 6 for A-F):
A) Cut a square large enough to overlap 12” in all directions.
B) Mark where to cut opening on the center of the square and cut four to eight slices about 3/8” less than the diameter of the pipe.
C) Force the square over the pipe leaving the tightly stretched cut area around the bottom of the pipe with approximately a 1/2” of the boot material running vertically up the pipe. (no more than a 1/2” of stretched boot material is recommended)
D) Once boot is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in between the two layers. Secure boot down firmly over the membrane taking care not to have any large folds or creases.
E) Use VaporBoot Tape or VaporSeal™ Tape to secure the boot to the
pipe.
VaporBoot Tape (option) – fold tape in half lengthwise, remove half of the release liner and wrap around the pipe allowing 1” extra for overlap sealing. Peel off the second half of the release liner and work the tape outward gradually forming a complete seal.
VaporSeal™ Tape (option) - Tape completely around pipe overlapping the VaporBlock® Plus™ square to create a tight seal against the pipe.
F) Complete the process by taping over the boot perimeter edge with VaporSeal™ Tape to create a monolithic membrane between the surface of the slab and gas/moisture sources below and at the slab perimeter. (Fig. 4 & 6)
Preformed Pipe Boot Square Material Pipe Boot
Fig. 3
SINGLE PENETRATION PIPE BOOT INSTALLATION
Fig. 5 Fig. 6
1. Cut a square of VaporBlock® Plus™ barrier to extend at least 12” from the pipe in all directions.
2. Cut four to eight slices about 3/8” less than the diameter of the pipe.
5. Use Raven VaporBoot or VaporSeal™ Tape and overlap 1” at the seam.
4. Tape over the boot perimeter edge with VaporSeal™ Tape.
1. Cut out one of the preformed boot steps (1” to 4”).
2. Tape the underside boot perimeter with 2-sided Butyl Seal Tape.
3. Force the boot over pipe and press tape firmly in place.
4. Use VaporSeal™ Tape
to secure boot to the pipe.
5. Tape around entire boot edge with VaporSeal™ Tape.
VaporBoot Flexible Tapeor VaporSeal™ 4” TapeVaporSeal™ 4” Tape
VaporBlock® Plus™Material
VaporSeal™ 4” Tape
Raven Butyl Seal2-Sided Tape Raven Butyl Seal2-Sided Tape
VaporBoot PlusPreformed Boot 12”(minimum)
3. Force over pipe and tape the underside boot perimeter to existing barrier with 2-sided Butyl Seal Tape.
Fig. 4
Page 2 of 4 Original figure #4 diagram is reprinted with permission by the Portland Cement Association.Reference: Kanare, Howard M., Concrete Floors and Moisture, EB119, Portland Cement Association, Skokie, Illinois, and National Ready Mixed Concrete Association, Silver Spring, Maryland, USA, 2008, 176 pages.Method 1
Method 2
VaporSeal™4” Tape VaporBoot PlusPerformed Boot
Raven Butyl Seal 2-sided Tape Raven Butyl Seal 2-sided Tape
1.5. Sealing side-by-side multiple penetrations (option 1);
A) Cut a patch large enough to overlap 12” in all directions (Fig. 7)
of penetrations.
B) Mark where to cut openings and cut four to eight slices about
3/8” less than the diameter of the penetration for each.
C) Force patch material over penetration to achieve a tight fit and
form a lip.
D) Once patch is positioned, seal the perimeter to the membrane
by applying 2-sided Raven Butyl Seal Tape in-between the two
layers. (Fig. 8)
E) After applying Raven Butyl Seal Tape between the patch and
membrane, tape around each of the penetrations and the patch
with VaporSeal™ 4” tape. (Fig. 9) For additional protection apply
POUR-N-SEAL™ or an acceptable polyurethane elastomeric
sealant around the penetrations. (Fig. 10)
Fig. 7 Fig. 8
Fig. 9 Fig. 10
MULTIPLE PENETRATION PIPE BOOT INSTALLATION
Fig. 6
Cut a patch large enough to overlap 12” in all directions and slide over penetrations (Make openings as tight as possible.)
Once the overlay patch is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in-between the two layers.
After applying Raven Butyl Seal Tapebetween the patch and membrane, tape around the perimeter of the penetration and the patch with VaporSeal™ 4” Tape.
For additional protection apply POUR-N-SEAL™ or an acceptable polyurethane elastomeric sealant around the penetrations.
VaporSeal™ 4” Tape VaporSeal™ 4” Tape
Page 3 of 4
Option 1
Raven Butyl Seal 2-sided Tape
1.6. POUR-N-SEAL™ method of sealing side-by-side multiple penetrations (option 2);
A) Install the vapor barrier as closely as possible to pipe penetrations to minimize the amount of POUR-N-SEAL™ necessary to seal around all penetrations.
B) Once barrier is in place, remove soil or other particles with a dry cloth or a fine broom to allow for improved adhesion to the POUR-N-SEAL™ liquid.
C) Create a dam around the penetration area approximately 2” away from the pipe or other vertical penetrations by removing the release liner from the back of a 1” weather stripping foam and adhere to the vapor barrier. Form a complete circle to contain the POUR-N-SEAL™ materials (Fig. 11).
D) Once mixed, pour contents around the pipe penetrations. If needed, a brush or a flat wooden stick can be used to direct the sealant completely around penetrations creating a complete seal (Fig. 12-13).
E) DO NOT leave excess POUR-N-SEAL™ in plastic container for longer than the time it takes to pour sealant.
Fig. 12 Fig. 13
Fig. 11
Option 2
VAPORBLOCK® PLUS™ REPAIR INSTRUCTIONS
1.7. Proper installation requires all holes and openings are repaired prior
to placing concrete. When patching small holes, simply cut a 12” long
piece of 12” wide VaporSeal™ tape. Remove release liner and center
over the opening. Apply pressure to create a seal (Fig. 14-15).
1.8. When installing VaporBlock® Plus™ around pipe penetrations,
vertical columns, electrical ducts and other obstructions, you will
find it necessary to cut it to the nearest outside edge. This cut can
be easily sealed with 12” wide VaporSeal™ tape, by simply centering
it over the cut, 6” on either side. Once the tape is placed correctly,
apply pressure to assure a complete seal (Fig. 16).
Reminder Note: All holes or penetrations through the membrane will need
to be patched with 12” VaporSeal™ Tape.
Fig. 14
Page 4 of 5
Fig. 15
2.1. When installing reinforcing steel and utilities, in addition to the
placement of concrete, take precaution to protect VaporBlock®
Plus™. Carelessness during installation can damage the most
puncture–resistant membrane. Sheets of plywood cushioned with
geotextile fabric temporarily placed on VaporBlock® Plus™ provide
for additional protection in high traffic areas including concrete
buggies.
2.2. Use only brick-type or chair-type reinforcing bar supports to protect
VaporBlock® Plus™ from puncture.
2.3. Avoid driving stakes through VaporBlock® Plus™. If this cannot be
avoided, each individual hole must be repaired per section 1.7.
2.4. To avoid penetrating VaporBlock® Plus™ when installing screed
supports, utilize non-penetrating support, such as the Mako®
Screed Support System (Fig. 17). Avoid driving stakes through
VaporBlock® Plus™. If this cannot be avoided, each individual hole
must be repaired per figures 14-15.
2.5. If a cushion or blotter layer is required in the design between
VaporBlock® Plus™ and the slab, additional care should be given if
sharp crushed rock is used. Washed rock will provide less chance of
damage during placement. Care must be taken to protect blotter layer
from precipitation before concrete is placed.
VaporBlock® Plus™ Gas & Moisture Barrier can be identified on site
as gold/white in color printed in black ink with following logo and
classification listing (Fig. 18)
Page 5 of 5
VaporBlock® Plus™
Gas & Moisture Barrier
Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be performed for applicability in specific applications and/or conditions. RAVEN INDUSTRIES MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at wwww.RavenEFD.com
ENGINEERED FILMSP.O. Box 5107 Sioux Falls, SD 57117-5107Ph: [phone] • TF: [phone]
[e-mail]
020316 EFD 1127
VAPORBLOCK® PLUS™ PROTECTION
Fig. 16
Fig. 18
Fig. 17
* Patent Pending
© Raven 2016. All Rights Reserved.
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
RP Series
Radon Mitigation Fan
All RadonAway™ fans are specifically
designed for radon mitigation. RP Series
Fans provide superb performance, run
ultra-quiet and are attractive. They are ideal
for most sub-slab radon mitigation systems.
Features
• Energy efficient
• Ultra-quiet operation
• Meets all electrical code requirements
• Water-hardened motorized impeller
• Seams sealed to inhibit radon leakage
(RP140 & RP145 double snap sealed)
• RP140 and RP260 Energy Star® Rated
• ETL Listed - for indoor or outdoor use
• Thermally protected motor
• Rated for commercial and residential use
For Further Information Contact
Made in USA with US
and imported parts
All RadonAway inline radon fans are covered by our
5-year, hassle-free warranty
ETL Listed
9/12P/N 02008
MODEL P/N FAN DUCT
DIAMETER WATTS MAX.
PRESSURE“WC
TYPICAL CFM vs. STATIC PRESSURE WC
0”.5”1.0”1.5”2.0”
RP140*23029-1 4”15-21 0.8 135 70 ---
RP145 23030-1 4”41-72 2.1 166 126 82 41 3
RP260*23032-1 6”50-75 1.6 272 176 89 13 -
RP265 23033-1 6”91-129 2.3 334 247 176 116 52
RP380*28208 8”95-152 2.3 497 353 220 130 38
Model A B C
RP140 4.5”9.7”8.5”
RP145 4.5”9.7”8.5”
RP260 6”11.75”8.6”
RP265 6”11.75”8.6”
RP380 8”13.41”10.53”
*Energy Star® Rated
The World’s Leading
Radon Fan Manufaturer
RP Series
Installation Instructions
RadonAway
3 Saber Way Ward Hill, MA 01835
www.radonaway.com
3 Saber Way Ward Hill, MA 01835
P/N IN020-REV K 4/11
IN020 Rev K Page 2 of 8

RadonAway Ward Hill, MA.
Series Fan Installation Instructions
Please Read and Save These Instructions.

DO NOT CONNECT POWER SUPPLY UNTIL FAN IS COMPLETELY INSTALLED.
MAKE SURE ELECTRICAL SERVICE TO FAN IS LOCKED IN "OFF" POSITION.
DISCONNECT POWER BEFORE SERVICING FAN.

1. WARNING! Do not use fan in hazardous environments where fan electrical system could provide ignition to
combustible or flammable materials.
2. WARNING! Do not use fan to pump explosive or corrosive gases.
3. WARNING! Check voltage at the fan to insure it corresponds with nameplate.
4. WARNING! Normal operation of this device may affect the combustion airflow needed for safe operation of fuel
burning equipment. Check for possible backdraft conditions on all combustion devices after installation.
5. NOTICE! There are no user serviceable parts located inside the fan unit.
Do NOT attempt to open. Return unit to the factory for service.
6. All wiring must be performed in accordance with the National Fire Protection Association’s (NFPA)”National Electrical
Code, Standard #70”-current edition for all commercial and industrial work, and state and local building codes. All
wiring must be performed by a qualified and licensed electrician
7. WARNING! Do not leave fan unit installed on system piping without electrical power for more than 48 hours. Fan
failure could result from this non-operational storage.
8. WARNING! TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE
FOLLOWING:

a) Use this unit only in the manner intended by the manufacturer. If you have questions, contact the manufacturer.

b) Before servicing or cleaning unit, switch power off at service panel and lock the service disconnecting means to
prevent power from being switched on accidentally. When the service disconnecting means cannot be locked, securely
fasten a prominent warning device, such as a tag, to the service panel.

IN020 Rev K Page 3 of 8

INSTALLATION INSTRUCTIONS IN020 Rev K
RP Series
RP140 p/n 23029-1
RP145 p/n 23030-1
RP260 p/n 23032-1
RP265 p/n 23033-1
RP380 p/n 28208 1.0 SYSTEM DESIGN CONSIDERATIONS 1.1 INTRODUCTION The RP Series Radon Fans are intended for use by trained, professional Radon mitigators. The purpose of this instruction is to provide additional guidance for the most effective use of an RP Series Fan. This instruction should be considered as a supplement to EPA standard practices, state and local building codes and state regulations. In the event of a conflict, those codes, practices and regulations take precedence over this instruction. 1.2 ENVIRONMENTALS The RP Series Fans are designed to perform year-round in all but the harshest climates without additional concern for temperature or weather. For installations in an area of severe cold weather, please contact RadonAway for assistance. When not in operation, the fan should be stored in an area where the temperature is never less than 32 degrees F. or more than 100 degrees F. 1.3 ACOUSTICS The RP Series Fan, when installed properly, operates with little or no noticeable noise to the building occupants. The velocity of the outgoing air should be considered in the overall system design. In some cases the "rushing" sound of the outlet air may be disturbing. In these instances, the use of a RadonAway Exhaust Muffler is recommended.
(To ensure quiet operation of ENERGY STAR qualified in-line and remote fans, each fan shall be installed using sound attenuation techniques appropriate for the
installation. For bathroom and general ventilation applications, at least 8 feet of insulated flexible duct shall be installed between the exhaust or supply grille(s) and the fan). 1.4 GROUND WATER In the event that a temporary high water table results in water at or above slab level, water may be drawn into the riser pipes thus blocking air flow to the RP Series Fan. The lack of cooling air may result in the fan cycling on and off as the internal temperature rises above the thermal cutoff and falls upon shutoff. Should this condition arise, it is recommended that the fan be turned off until the water recedes allowing for return to normal operation. 1.5 SLAB COVERAGE The RP Series Fan can provide coverage up to 2000+ sq. ft. per slab penetration. This will primarily depend on the sub-slab material in any particular installation. In general, the tighter the material, the smaller the area covered per penetration. Appropriate selection of the RP Series Fan best suited for the sub-slab material can improve the slab coverage. The RP140/145/155 are best suited for general purpose use. The RP260 can be used where additional airflow is required and the RP265/380 is best suited for large slab, high airflow applications. Additional suction points can be added as required. It is recommended that a small pit (5 to 10 gallons in size) be created below the slab at each suction hole.
IN020 Rev K Page 4 of 8

1.6 CONDENSATION & DRAINAGE Condensation is formed in the piping of a mitigation system when the air in the piping is chilled below its dew point. This can occur at points where the system piping goes through unheated space such as an attic, garage or outside. The system design must provide a means for water to drain back to a slab hole to remove the condensation. The RP Series Fan MUST be mounted vertically plumb and level, with the outlet pointing up for proper drainage through the fan. Avoid mounting the fan in any orientation that will allow water to accumulate inside the fan housing. The RP Series Fans are NOT suitable for underground burial. For RP Series Fan piping, the following table provides the minimum recommended pipe diameter and pitch under several system conditions.
Pipe
Dia. Minimum Rise per Ft of Run*
@25 CFM @50 CFM @100 CFM @200 CFM @300 CFM
6" - 3/16 1/4 3/8 3/4
4" 1/8 1/4 3/8 2 3/8 -
3" 1/4 3/8 1 1/2 - -
*Typical RP1xx/2xx Series Fan operational flow rate is 25 - 90 CFM 0n 3” and 4” pipe.
(For more precision, determine flow rate by measuring Static Pressure, in WC, and
correlate pressure to flow in the performance chart in the addendum.)
Under some circumstances in an outdoor installation a condensate bypass should be installed in the outlet ducting as shown. This may be particularly true in cold climate installations which require long lengths of outlet ducting or where the outlet ducting is likely to produce large amounts of condensation because of high soil moisture or outlet duct material. Schedule 20 piping and other thin-walled plastic ducting and Aluminum downspout will normally produce much more condensation than Schedule 40 piping. The bypass is constructed with a 45 degree Wye fitting at the bottom of the outlet stack. The bottom of the Wye is capped and fitted with a tube that connects to the inlet piping or other drain. The condensation produced in the outlet stack is collected in the Wye fitting and drained through the bypass tube. The bypass tubing may be insulated to prevent freezing. 1.7 "SYSTEM ON" INDICATOR A properly designed system should incorporate a "System On" Indicator for affirmation of system operation. A manometer, such as a U-Tube, or a vacuum alarm is recommended for this purpose.
RUN
RISE

IN020 Rev K Page 5 of 8
1.8 ELECTRICAL WIRING The RP Series Fans operate on standard 120V 60 Hz. AC. All wiring must be performed in accordance with the National Fire Protection Association’s (NFPA)”National Electrical Code, Standard #70”-current edition for all commercial and industrial work, and state and local building codes. All wiring must be performed by a qualified and licensed electrician. Outdoor installations require the use of a U.L. listed watertight conduit. Ensure that all exterior electrical boxes are outdoor rated and properly sealed to prevent water penetration into the box. A means, such as a weep hole, is recommended to drain the box. 1.9 SPEED CONTROLS The RP Series Fans are rated for use with electronic speed controls, however, they are generally not recommended. If used, the recommended speed control is Pass & Seymour Solid State Speed Control Cat. No. 94601-I. 2.0 INSTALLATION The RP Series Fan can be mounted indoors or outdoors. (It is suggested that EPA recommendations be followed in choosing the fan location.) The RP Series Fan may be mounted directly on the system piping or fastened to a supporting structure by means of optional mounting bracket.

IN020 Rev K Page 6 of 8
2.1 MOUNTING Mount the RP Series Fan vertically with outlet up. Insure the unit is plumb and level. When mounting directly on the system piping assure that the fan does not contact any building surface to avoid vibration noise. 2.2 MOUNTING BRACKET (optional) The RP Series Fan may be optionally secured with the RadonAway P/N 25007-2 (25033 for RP385) mounting bracket. Foam or rubber grommets may also be used between the bracket and mounting surface for vibration isolation. 2.3 SYSTEM PIPING Complete piping run, using flexible couplings as means of disconnect for servicing the unit and vibration isolation. 2.4 ELECTRICAL CONNECTION Connect wiring with wire nuts provided, observing proper connections (See Section 1.8):
Fan Wire Connection
Green Ground
Black AC Hot
White AC Common
2.5 VENT MUFFLER (optional) Install the muffler assembly in the selected location in the outlet ducting. Solvent weld all connections. The muffler is normally installed at the end of the vent pipe. 2.6 OPERATION CHECKS _____ Verify all connections are tight and leak-free. _____ Insure the RP Series Fan and all ducting is secure and vibration-free. _____ Verify system vacuum pressure with manometer. Insure vacuum pressure is less than maximum recommended operating pressure (Based on sea-level operation, at higher altitudes reduce by about 4% per 1000 Feet.) (Further reduce Maximum Operating Pressure by 10% for High Temperature environments)
See Product Specifications. If this is exceeded, increase the number of suction points. _____ Verify Radon levels by testing to EPA protocol.

Typical Indoor Installation
IN020 Rev K Page 7 of 8
RP SERIES PRODUCT SPECIFICATIONS The following chart shows fan performance for the RP Series Fan:
Typical CFM Vs Static Pressure "WC
0" .25" .5" .75" 1.0" 1.25" 1.5" 1.75" 2.0"
RP140 135 103 70 14 - - - - -
RP145 166 146 126 104 82 61 41 21 3
RP260 272 220 176 138 103 57 13 - -
RP265 334 291 247 210 176 142 116 87 52
RP380* 497 401 353 281 220 176 130 80 38
* Tested with 6” inlet and discharge pipe.
Power Consumption
120 VAC, 60Hz 1.5 Amp Maximum
Maximum Recommended
Operating Pressure* (Sea Level Operation)**
RP140 17 - 21 watts RP140 0.8" W.C.
RP145 41 - 72 watts RP145 1.7" W.C.
RP260 52 - 72 watts RP260 1.5" W.C.
RP265 91 - 129 watts RP265 2.2" W.C.
RP380 95 - 152 watts RP380 2.0" W.C.
*Reduce by 10% for High Temperature Operation
**Reduce by 4% per 1000 feet of altitude
Size Weight Inlet/Outlet
RP140 8.5H" x 9.7" Dia. 5.5 lbs. 4.5" OD (4.0" PVC Sched 40 size compatible)
RP145 8.5H" x 9.7" Dia. 5.5 lbs. 4.5" OD (4.0" PVC Sched 40 size compatible)
RP260 8.6H" x 11.75" Dia. 5.5 lbs. 6.0” OD
RP265 8.6H" x 11.75" Dia. 6.5 lbs. 6.0” OD
RP380 10.53H" x 13.41" Dia. 11.5 lbs. 8.0” OD

Recommended ducting: 3" or 4" RP1xx/2xx, 6” RP380, Schedule 20/40 PVC Pipe
Mounting: Mount on the duct pipe or with optional mounting bracket.
Storage temperature range: 32 - 100 degrees F.
Normal operating temperature range: -20 - 120 degrees F.
Maximum inlet air temperature: 80 degrees F.
Continuous Duty
Class B Insulation
Thermally Protected
3000 RPM
Rated for Indoor or Outdoor Use

RP140 and RP260
Only.

IN020 Rev K Page 8 of 8
IMPORTANT INSTRUCTIONS TO INSTALLER

Inspect the GP/XP/XR/RP Series Fan for shipping damage within 15 days of receipt. Notify
RadonAway of any damages immediately. Radonaway is not responsible for damages incurred
during shipping. However, for your benefit, Radonaway does insure shipments.

There are no user serviceable parts inside the fan. Do not attempt to open. Return unit to factory
for service.

Install the GP/XP/XR/RP Series Fan in accordance with all EPA standard practices, and state and local building codes and state regulations.
WARRANTY
Subject to any applicable consumer protection legislation, RadonAway warrants that the GPX01/XP/XR/RP Series Fan (the “Fan”) will be free from
defects in materials and workmanship for a period of 90 days from the date of purchase (the “Warranty Term”).
RadonAway will replace any Fan which fails due to defects in materials or workmanship. The Fan must be returned (at Owner’s cost) to the
RadonAway factory. Any Fan returned to the factory will be discarded unless the Owner provides specific instructions along with the Fan when it is
returned regardless of whether or not the Fan is actually replaced under this warranty. Proof of purchase must be supplied upon request for
service under this Warranty.
This Warranty is contingent on installation of the Fan in accordance with the instructions provided. This Warranty does not apply where any
repairs or alterations have been made or attempted by others, or if the unit has been abused or misused. Warranty does not cover damage in
shipment unless the damage is due to the negligence of RadonAway.
5 YEAR EXTENDED WARRANTY WITH PROFESSIONAL INSTALLATION.
RadonAway will extend the Warranty Term of the fan to 5 years from date of manufacture if the Fan is installed in a professionally designed and
professionally installed radon system or installed as a replacement fan in a professionally designed and professionally installed radon system.
Proof of purchase and/or proof of professional installation may be required for service under this warranty. Outside the Continental United States
and Canada the extended Warranty Term is limited to one (1) year from the date of manufacture.
RadonAway is not responsible for installation, removal or delivery costs associated with this Warranty.
EXCEPT AS STATED ABOVE, THE GPx01/XP/XR/RP SERIES FANS ARE PROVIDED WITHOUT
WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION,IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
IN NO EVENT SHALL RADONAWAY BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL,
OR CONSEQUENTIAL DAMAGES ARISING OUT OF, OR RELATING TO, THE FAN OR THEPERFORMANCE THEREOF. RADONAWAY’S AGGREGATE LIABILITY HEREUNDER SHALL NOT IN
ANY EVENT EXCEED THE AMOUNT OF THE PURCHASE PRICE OF SAID PRODUCT. THE SOLE AND
EXCLUSIVE REMEDY UNDER THIS WARRANTY SHALL BE THE REPAIR OR REPLACEMENT OF THE
PRODUCT, TO THE EXTENT THE SAME DOES NOT MEET WITH RADONAWAY’S WARRANTY AS
PROVIDED ABOVE.
For service under this Warranty, contact RadonAway for a Return Material Authorization (RMA) number and shipping
information.  No returns can be accepted without an RMA.  If factory return is required, the customer assumes all shipping
cost to and from factory.
RadonAway
3 Saber Way
Ward Hill, MA 01835
TEL. [phone]
FAX [phone]
Record the following information for your records:
Serial No.
Purchase Date